JPH0749099A - Impeller made of fiber reinforced resin - Google Patents
Impeller made of fiber reinforced resinInfo
- Publication number
- JPH0749099A JPH0749099A JP5194893A JP19489393A JPH0749099A JP H0749099 A JPH0749099 A JP H0749099A JP 5194893 A JP5194893 A JP 5194893A JP 19489393 A JP19489393 A JP 19489393A JP H0749099 A JPH0749099 A JP H0749099A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- maximum stress
- fiber
- resin
- maximum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 162
- 239000011347 resin Substances 0.000 title claims abstract description 162
- 239000000835 fiber Substances 0.000 title claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 83
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 239000012783 reinforcing fiber Substances 0.000 claims description 6
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 39
- 238000001746 injection moulding Methods 0.000 description 33
- 229920000049 Carbon (fiber) Polymers 0.000 description 26
- 239000004917 carbon fiber Substances 0.000 description 26
- 239000012778 molding material Substances 0.000 description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 229920001643 poly(ether ketone) Polymers 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000004962 Polyamide-imide Substances 0.000 description 10
- 230000009477 glass transition Effects 0.000 description 10
- 229920002312 polyamide-imide Polymers 0.000 description 10
- 239000003365 glass fiber Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- -1 ether ether ketone Chemical class 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 239000004696 Poly ether ether ketone Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 229920002530 polyetherether ketone Polymers 0.000 description 7
- 229920004695 VICTREX™ PEEK Polymers 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229920006259 thermoplastic polyimide Polymers 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000004695 Polyether sulfone Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 229920006393 polyether sulfone Polymers 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 239000004963 Torlon Substances 0.000 description 4
- 229920003997 Torlon® Polymers 0.000 description 4
- 229920006351 engineering plastic Polymers 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000004697 Polyetherimide Substances 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 229920001601 polyetherimide Polymers 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 229920002959 polymer blend Polymers 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052580 B4C Inorganic materials 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Chemical class 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば、車両用のター
ボチャージャのコンプレッサ等の遠心圧縮機などに利用
される繊維強化樹脂製インペラに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber-reinforced resin impeller used for a centrifugal compressor such as a compressor of a turbocharger for a vehicle.
【０００２】[0002]
【従来の技術】従来、車両用のターボチャージャとして
は、図８に示すようなものがある（例えば、実開昭６２
−１１４１０３号公報，実開平１−１２５８２４号公報
等参照。）。2. Description of the Related Art Conventionally, as a turbocharger for a vehicle, there is a turbocharger as shown in FIG.
See Japanese Unexamined Patent Publication No. 114103, Japanese Utility Model Laid-Open No. 1-125824, and the like. ).
【０００３】すなわち、図８に示すターボチャージャ
は、排気通路に介装されたタービンハウジング１のター
ビンロータ２（以下、「ロータ２」と称する。）と、吸
気通路に介装されたコンプレッサハウジング３のコンプ
レッサインペラ４（以下、「インペラ４」と称する。）
とが共通の回転軸５の両端部にそれぞれ取付けられてお
り、インペラ４には回転軸５を通すための軸孔４ａが形
成されている。That is, the turbocharger shown in FIG. 8 has a turbine rotor 2 (hereinafter referred to as "rotor 2") of a turbine housing 1 provided in an exhaust passage and a compressor housing 3 provided in an intake passage. Compressor impeller 4 (hereinafter referred to as "impeller 4")
Are attached to both ends of a common rotary shaft 5, and the impeller 4 is formed with a shaft hole 4a through which the rotary shaft 5 passes.
【０００４】そして、タービンハウジング１の排気流入
部６から排気出口部７に向けて矢印Ｅ１，Ｅ２方向に流
れる排気流によりロータ２が回転し、これにより回転軸
５を介してインペラ４が回転し、吸気流入部８から矢印
Ａ方向に流入した吸気を圧縮空気出口部９より過給する
ようになっている。なお、１０はインペラ締め付け用ナ
ット、１１はインペラ４の位置決めを行なうスリーブで
ある。Then, the rotor 2 is rotated by the exhaust flow that flows from the exhaust inflow portion 6 of the turbine housing 1 toward the exhaust outlet portion 7 in the directions of the arrows E 1 and E 2 , so that the impeller 4 is rotated via the rotary shaft 5. The intake air that rotates and flows in the direction of arrow A from the intake air inlet portion 8 is supercharged from the compressed air outlet portion 9. Reference numeral 10 is a nut for tightening the impeller, and 11 is a sleeve for positioning the impeller 4.
【０００５】ところで、上記インペラの形状や製造方法
に係わる技術としては、以下に述べるようなものがある
（実開平１−１１１１０２号公報、特開昭６４−１５４
９７号公報等参照。）。By the way, as a technique relating to the shape and manufacturing method of the above-mentioned impeller, there is the one described below (Japanese Utility Model Laid-Open No. 1-1111102, Japanese Patent Laid-Open No. 64-154).
See Japanese Patent Publication No. 97. ).
【０００６】上記したように、インペラ４は回転軸５に
よってロータ２と同軸状に取付けられており、ターボチ
ャージャにおいてこのインペラ４は空気を圧縮して内燃
機関に大気圧以上の空気を送り込む機能を有する圧縮機
の役割を果たす。このため、インペラ４はより小さな空
気流量でより大きな圧力比が得られるように常に翼形状
に工夫が加えられてきた。As described above, the impeller 4 is coaxially attached to the rotor 2 by the rotating shaft 5, and in the turbocharger, the impeller 4 has a function of compressing air and sending air of atmospheric pressure or higher to the internal combustion engine. Has the role of compressor. For this reason, the impeller 4 has always been devised in its blade shape so that a larger pressure ratio can be obtained with a smaller air flow rate.
【０００７】すなわち、図９および図１０に示すよう
に、インペラ４は長翼２１と短翼２２とにより構成され
ており、前記回転軸５が挿入される軸孔２３を有するボ
ス２４がインデユーサ入口２５に配設され、相対する面
には背板２６が設けられている。また、ターボチャージ
ャとしてはよりリニアな応答特性を達成するために、ロ
ータ２の材料としてセラミックスや金属間化合物の採
用、また、回転軸５のフローティングメタルタイプから
ボールベアリングタイプへの変更等、種々の技術改良が
なされている。That is, as shown in FIGS. 9 and 10, the impeller 4 is composed of a long blade 21 and a short blade 22, and a boss 24 having a shaft hole 23 into which the rotary shaft 5 is inserted is provided with an boss 24. 25, and a back plate 26 is provided on the opposite surface. Further, in order to achieve more linear response characteristics as a turbocharger, various materials such as ceramics and intermetallic compounds are used as the material of the rotor 2, and the floating metal type of the rotating shaft 5 is changed to a ball bearing type. Technical improvements have been made.
【０００８】また、インペラ４においても、翼が垂直に
立った形状のラジアルタイプから、より高効率のバック
ワードタイプへの変更、コンピュータ援用技術（ＣＡ
Ｅ）を駆使した翼形状の改良、また、さらなる高効率化
を求めて鋳造アルミニウム合金製インペラの電解研磨に
よる翼面の平滑化と翼厚さの低減等の技術の投入が続け
られている。Also in the impeller 4, the radial type in which the blade stands vertically is changed to the backward type with higher efficiency.
In order to improve the blade shape by making full use of E) and further improve efficiency, techniques such as smoothing the blade surface and reducing blade thickness by electrolytic polishing of impeller made of cast aluminum alloy are continuously introduced.
【０００９】さらに、従来のアルミニウム合金製インペ
ラに比べて重量が２分の１となり、しかも、射出成形が
容易なメリットを生かした効率重視の翼形状が設計可能
なことから、加速性能の向上と圧縮効率の向上の両面で
期待される繊維強化樹脂製インペラ（以下、「樹脂製イ
ンペラ」と称する。）がある。Further, compared with the conventional aluminum alloy impeller, the weight is halved, and moreover, because the blade shape with emphasis on efficiency can be designed by taking advantage of the ease of injection molding, the acceleration performance is improved. There is a fiber-reinforced resin impeller (hereinafter referred to as “resin impeller”) that is expected to improve compression efficiency.
【００１０】[0010]
【発明が解決しようとする課題】インペラに働く遠心応
力は製品重量におおよそ比例するため、比重約２．８の
アルミニウム合金製から、比重１．３〜１．５程度の繊
維強化樹脂製に変更すると、発生応力は約１／２にな
る。アルミニウム合金と例えばチョップドカーボン繊維
強化樹脂の常温時における強度はほぼ同等であるため、
むしろ、樹脂製インペラのほうが安全率が大きいように
見える。Since the centrifugal stress acting on the impeller is approximately proportional to the product weight, the aluminum alloy having a specific gravity of about 2.8 is changed to a fiber reinforced resin having a specific gravity of about 1.3 to 1.5. Then, the generated stress becomes about 1/2. Since the strength of aluminum alloy and chopped carbon fiber reinforced resin at room temperature is almost the same,
Rather, the resin impeller seems to have a higher safety factor.
【００１１】しかし、アルミニウム合金の強度特性には
異方性がないのに対して、繊維強化樹脂の強度特性には
異方性があり、繊維の配向方向に対して直角方向の強度
や繊維配向がランダムの場合の強度は、繊維が一方向に
配向した場合の繊維方向の強度の６０〜７０％にまで低
下してしまうため、アルミニウム合金の方が強度の温度
依存性が小さいことを考慮すると、場合によってはアル
ミニウム合金製インペラと同等の耐久信頼性を確保する
ことが容易ではない場合も発生する。However, while the strength characteristics of the aluminum alloy do not have anisotropy, the strength characteristics of the fiber reinforced resin have anisotropy, and the strength and the fiber orientation in the direction perpendicular to the fiber orientation direction. Since the strength in the case of random is reduced to 60 to 70% of the strength in the fiber direction when the fibers are oriented in one direction, considering that the aluminum alloy has less temperature dependence of strength. However, in some cases, it may not be easy to ensure durability reliability equivalent to that of an aluminum alloy impeller.
【００１２】樹脂製インペラの製造方法は、すでに前記
公報等で開示されているように様々であり、いずれの方
法にも長所，短所があるが、耐久信頼性に関しては、い
かにして、大きな応力が発生する部位の強度が大きくな
るように繊維の配向をコントロールするかが問題とな
る。There are various methods for producing a resin impeller, as already disclosed in the above publications, and each method has advantages and disadvantages. The problem is how to control the orientation of the fibers so that the strength of the area where the occurrence of swells increases.
【００１３】また、樹脂製インペラを開発する際に、解
決が必要な課題としては、図１１に示したように、ナッ
ト１０を用いた締結による端面のへたりの防止（すなわ
ち、（Ｉ） ネジの緩まない十分な耐へたり特性）、翼
付け根部に発生するクラック（すなわち、（ＩＩ） 翼
付け根部にクラックの発生しない十分な耐熱性）、背板
部に発生するうねりの防止（すなわち、（ＩＩＩ） 背
板部にうねりの発生しない十分な耐熱性）、最大応力が
発生する部分での破壊の防止（すなわち、（ＩＶ） 最
大応力の発生部位における耐疲労性・耐クリープ性、欠
陥が発生しても容易に破壊に至らない靭性）等がある。In developing a resin impeller, a problem that needs to be solved is, as shown in FIG. 11, prevention of settling of the end face by fastening with a nut 10 (that is, (I) screw). (Sufficient sagging resistance that does not loosen), cracks that occur at the root of the blade (that is, (II) sufficient heat resistance that does not cause cracks at the root of the blade), and prevention of undulations that occur at the back plate (that is, (III) Sufficient heat resistance without waviness in the back plate, and prevention of breakage in the portion where maximum stress occurs (that is, (IV) Fatigue resistance / creep resistance at the portion where maximum stress occurs, defects Even if it occurs, it has a toughness that does not easily lead to breakage).
【００１４】前記したように、樹脂製インペラの疲労，
クリープ寿命を改良するためには、繊維の配向制御が重
要であるが、機能部品であるため製品形状の変更によっ
て繊維の配向をコントロールすることは容易ではない。
比較的現実的な方法としては、強度的に有利な繊維配向
が実現可能となる成形条件を見つけだすことであるが、
成形材料の流動特性にばらつきが存在するため（流動特
性が変わってしまうと繊維の配向も変わる）、成形条件
の管理によって耐久信頼性を維持するのは非常に危険で
あると言える。As described above, the fatigue of the resin impeller,
In order to improve the creep life, it is important to control the fiber orientation, but since it is a functional part, it is not easy to control the fiber orientation by changing the product shape.
A relatively realistic method is to find molding conditions that enable the fiber orientation that is advantageous in strength to be realized.
Since there are variations in the flow characteristics of the molding material (if the flow characteristics change, the orientation of the fibers also changes), it can be said that maintaining durability reliability by controlling the molding conditions is extremely dangerous.
【００１５】ところで、上記した端面のへたり、翼付け
根部に発生するクラックや背板部に発生するうねりの防
止の観点からは、耐熱性，高温弾性率に優れた樹脂材
料、例えば、ポリアミドイミドやポリイミド等、ガラス
転移温度Ｔｇが大きい樹脂が比較的望ましい。ところ
が、ポリアミドイミド、ポリイミド、ポリエーテルサル
ホン、ポリエーテルイミド等、ガラス転移温度が２００
℃以上である樹脂では、靭性が不足するものが多く、ガ
ラス転移温度が比較的低いにもかかわらずポリエーテル
ケトン系の樹脂の方が高温疲労特性，クリープ特性に優
れる場合が多い。By the way, from the viewpoint of preventing the above-mentioned fatigue of the end face, cracks generated at the root of the blade and undulation generated at the back plate, a resin material excellent in heat resistance and high temperature elastic modulus, for example, polyamide imide is used. Resins having a high glass transition temperature Tg, such as polyimide and polyimide, are relatively desirable. However, the glass transition temperature of polyamide imide, polyimide, polyether sulfone, polyether imide, etc. is 200.
Many of the resins having a temperature of ℃ or more have insufficient toughness, and the polyetherketone-based resin is often superior in high-temperature fatigue property and creep property in spite of its relatively low glass transition temperature.
【００１６】つまり、樹脂製インペラの高温疲労特性，
クリープ特性の改良と、端面のへたりや翼付け根部に発
生するクラックや背板部に発生するうねりの防止を同時
に満足する材料を見いだすことが容易ではないために、
樹脂製インペラの市販化が遅れているのが現状である。That is, the high temperature fatigue characteristics of the resin impeller,
Since it is not easy to find a material that satisfies the improvement of creep properties and the prevention of cracks that occur at the end face and the root of the blade and the undulation that occurs at the back plate, it is not easy to find
The current situation is that commercialization of resin impellers has been delayed.
【００１７】[0017]
【発明の目的】そこで、本発明は、このような従来の実
情に鑑みてなされたものであり、樹脂製インペラを２種
類以上の材料を用いて製造することによって前記課題を
解決し、より信頼性に優れた安価な樹脂製インペラを提
供可能とすることを目的としている。SUMMARY OF THE INVENTION Therefore, the present invention has been made in view of the above-mentioned conventional circumstances, and solves the above problems by manufacturing a resin impeller using two or more kinds of materials, and is more reliable. It is an object of the present invention to provide an inexpensive resin impeller having excellent properties.
【００１８】[0018]
【課題を解決するための手段】図１２に示したように、
樹脂製インペラ４に働く遠心応力は、背板側の軸孔近傍
が最も大きい。[Means for Solving the Problems] As shown in FIG.
The centrifugal stress acting on the resin impeller 4 is greatest near the shaft hole on the back plate side.
【００１９】また、インペラはナットで締結されている
ため、ボス側および背板側の端面近傍は圧縮応力になっ
ており、製品体積に対して応力が大きい部位を占める体
積が意外に小さいことがわかる。つまり、繊維配向のコ
ントロールが重要な部位は比較的少なく、他の部位は発
生応力が小さいために強度的に不利な繊維配向になって
しまっても安全率は十分確保できる。Further, since the impeller is fastened with a nut, compressive stress is applied to the vicinity of the end faces on the boss side and the back plate side, and the volume occupying a large stress portion with respect to the product volume is unexpectedly small. Recognize. That is, there are relatively few areas where the control of fiber orientation is important, and the stress generated at other areas is small, so that a sufficient safety factor can be secured even if the fiber orientation is disadvantageous in terms of strength.
【００２０】この点に着目し、本発明では、強度の確保
が第一に優先されるべきである最大応力部位に、高温疲
労特性，クリープ特性に優れた材料を使用し、ボス側端
面や背板，翼付け根部等の外表面の非最大応力部位につ
いては高温疲労特性，クリープ特性にとらわれることな
く耐熱性，高温弾性率の優れた材料を使用することとし
た。Focusing on this point, in the present invention, a material having excellent high temperature fatigue characteristics and creep characteristics is used in the maximum stress portion where the securing of strength should be the first priority. For the non-maximum stress sites on the outer surface of the plate, root of the blade, etc., we decided to use materials with excellent heat resistance and high temperature elastic modulus regardless of high temperature fatigue properties and creep properties.
【００２１】すなわち、本発明に係わる繊維強化樹脂製
インペラは、最大応力発生部位を含む形状を有する最大
応力部位／部材ＰＡと、前記最大応力部位／部材ＰＡを
除く非最大応力部位／部材ＰＢを有してなる繊維強化樹
脂製インペラにおいて、最大応力部位／部材ＰＡと非最
大応力部位／部材ＰＢをそれぞれ形成する繊維強化樹脂
材料ＭＡ，ＭＢのマトリックス樹脂および／または強化
繊維の繊維含有率が異なっている構成としたことを特徴
としている。[0021] That is, fiber reinforced resin impeller according to the present invention, the maximum stress portion / member P A having a shape including a maximum stress producing site, the non-maximum stress portion / member except the highest stress region / member P A in the fiber reinforced plastic impeller comprising a P B, fiber-reinforced form maximum stress site / member P a and the non-maximum stress site / member P B each resin material M a, matrix resins and / or enhancement of M B The feature is that the fiber content ratio of the fibers is different.
【００２２】また、本発明に係わる繊維強化樹脂製イン
ペラの実施態様においては、軸を中心に回転する繊維強
化樹脂製インペラであって、軸に対するインペラの最大
径の断面で、軸中心より最大径の７．５〜８．５％まで
の間の最大応力発生部位を含み、且つ該断面の軸方向に
対して±２〜３ｍｍの部分からなる円筒部位を少なくと
も含む最大応力部位／部材ＰＡと、前記最大応力部位／
部材ＰＡを除く非最大応力部位／部材ＰＢを有してな
り、最大応力部位／部材ＰＡと非最大応力部位／部材Ｐ
Ｂをそれぞれ形成する繊維強化樹脂材料ＭＡ，ＭＢのマ
トリックス樹脂および／または強化繊維の繊維含有率が
異なっている構成とすることができ、また、最大径部と
同一高さで且つ軸中心より最大径の７．５〜８．５％ま
での間の部分を含む最大応力部位／部材ＰＡの内部の繊
維配向をインペラの円周方向（軸の外周方向）に沿う配
向とした構成とすることができる。Further, in an embodiment of the fiber-reinforced resin impeller according to the present invention, the fiber-reinforced resin impeller rotates about a shaft, and the cross-section of the maximum diameter of the impeller with respect to the shaft is the maximum diameter from the shaft center. Maximum stress site / member P A which includes a maximum stress generation site of 7.5 to 8.5% of at least and also includes at least a cylindrical site formed of a part of ± 2 to 3 mm with respect to the axial direction of the cross section. , The maximum stress area /
It has non-maximum stress parts / members P B excluding members P A , and has maximum stress parts / members P A and non-maximum stress parts / members P
The fiber-reinforced resin materials M A and M B forming B may have different matrix resin and / or fiber content ratios of the reinforcing fibers, and may have the same height as the maximum diameter portion and the axial center. A configuration in which the fiber orientation inside the maximum stress portion / member PA including a portion between 7.5 to 8.5% of the maximum diameter is oriented along the circumferential direction (outer peripheral direction of the shaft) of the impeller. can do.
【００２３】本発明に係わる繊維強化樹脂製インペラを
製造するにあたり、例えば、図３に示した上型３１、キ
ャビティ３２を形成している中型３３、ピン３４をキャ
ビティ３２内に突出して設けた下型３５よりなる樹脂製
インペラ製造用金型において、あらかじめ高温疲労特
性，高温クリープ特性に優れた繊維強化樹脂材料ＭＡで
製造した最大応力部位／部材ＰＡを下型３５に突出して
設けたピン３４に通してキャビティ３２内に配置し、図
示した矢印Ｂ方向から耐熱性，高温弾性率に優れた繊維
強化樹脂材料ＭＢを射出して非最大応力部位／部材ＰＢ
を成形することにより、樹脂製インペラ４を製造するよ
うになすことができる。In manufacturing the fiber-reinforced resin impeller according to the present invention, for example, the upper mold 31, the middle mold 33 forming the cavity 32, and the pin 34 shown in FIG. In a resin-made impeller manufacturing mold comprising a mold 35, a pin provided with a maximum stress portion / member P A , which is manufactured in advance from a fiber-reinforced resin material M A excellent in high-temperature fatigue properties and high-temperature creep properties, protruding from the lower mold 35. A non-maximum stress portion / member P B is obtained by injecting a fiber reinforced resin material M B having excellent heat resistance and high temperature elastic modulus from the direction of arrow B shown in FIG.
The resin impeller 4 can be manufactured by molding.
【００２４】この場合、高温疲労特性、高温クリープ特
性に優れた繊維強化樹脂材料ＭＡで製造した最大応力部
位／部材ＰＡは、射出成形，押し出し成形で作るのが簡
便であるが、必要に応じて、連続繊維を用いたプリプレ
グシートの圧縮成形や引き抜き成形等、樹脂製インペラ
４に必要な長期耐久信頼性を満足するものであれば製造
方法を問わない。この最大応力部位／部材ＰＡは、射出
成形を前提としないため、射出成形の困難な高繊維含有
率や連続繊維のものも使用できるので、比較的安価な耐
熱性エンジニアリングプラスチックスが使用できるメリ
ットもある。In this case, the maximum stress portion / member P A made of the fiber reinforced resin material M A excellent in high temperature fatigue property and high temperature creep property is easy to make by injection molding or extrusion molding, but it is necessary. Accordingly, any manufacturing method may be used as long as it satisfies the long-term durability reliability required for the resin impeller 4, such as compression molding and pultrusion molding of a prepreg sheet using continuous fibers. Since this maximum stress portion / member P A is not premised on injection molding, it is possible to use a material having a high fiber content or continuous fiber, which is difficult to injection molding, so that a relatively inexpensive heat resistant engineering plastic can be used. There is also.
【００２５】一方、外表面を主とする非最大応力部位／
部材ＰＢを形成する繊維強化樹脂材料ＭＢは、強度の絶
対値よりも高温弾性率の保持が重要となる。一般に、ガ
ラス転移温度を超えると弾性率の大きい炭素繊維を配合
していても弾性率が大きくて低下する。On the other hand, the non-maximum stress portion mainly on the outer surface /
For the fiber-reinforced resin material M B forming the member P B , it is more important to maintain the high temperature elastic modulus than the absolute value of strength. In general, when the glass transition temperature is exceeded, the elastic modulus is large and decreases even if carbon fibers having a large elastic modulus are blended.
【００２６】換言すれば、ガラス転移温度が大きい材料
が使用できるようになれば、炭素繊維を多量に配合する
必要がなくなる。炭素繊維の配合量を減らすと樹脂の流
動性が良くなるため、複雑な翼形状や翼厚さの小さいイ
ンペラが製造可能となり、効率の良いインペラを作るこ
とができるメリットも生じる。In other words, if a material having a high glass transition temperature can be used, it is not necessary to mix a large amount of carbon fiber. When the blending amount of carbon fiber is reduced, the fluidity of the resin is improved, so that an impeller having a complicated blade shape and a small blade thickness can be manufactured, and there is an advantage that an efficient impeller can be manufactured.
【００２７】最大応力部位／部材ＰＡおよび非最大応力
部位／部材ＰＢはともに耐熱性が要求されるが、部材Ｐ
Ａが高強度であることが必要であるのに対して、部材Ｐ
Ｂは特に高強度である必要性はない。ただし、高回転時
には、雰囲気温度自体は部材ＰＡの方が４０〜５０℃低
くなるため、若干耐熱温度の低いマトリックス樹脂を使
用することも可能である。Both the maximum stress part / member P A and the non-maximum stress part / member P B are required to have heat resistance.
A needs to have high strength, while member P
B does not need to have a particularly high strength. However, at the time of high rotation, the ambient temperature itself for better member P A is 40 to 50 ° C. lower, it is also possible to use a little a low heat temperature matrix resin.
【００２８】そして、非最大応力部位／部材ＰＢに使用
できる樹脂材料ＭＢとしては、ポリアミドイミド（ガラ
ス転移温度：２８８℃），熱可塑性ポリイミド（ガラス
転移温度：２５０℃），ポリエーテルサルホン（ガラス
転移温度：２２５℃），ポリエーテルイミド（ガラス転
移温度：２１７℃）等の単独またはポリマーブレンドを
使用することができ、このようなガラス転移温度が２０
０℃以上の超耐熱性エンジニアリングプラスチックス
や、ポリエーテルケトンエーテルケトンケトン，ポリエ
ーテルケトン，ポリエーテルエーテルケトン，ポリエー
テルケントケトン，ポリアリルエーテルケトン等のポリ
エーテルケトン系超耐熱性エンジニアリングプラスチッ
クスや、ポリエーテルニトリル，ポリフェニレンサルフ
ァイド，液晶ポリエステル等の単独またはポリマーブレ
ンドの中から選んで使用することが可能であり、特に、
ガラス転移温度が２００℃以上である前記した４種類の
樹脂材料は樹脂材料ＭＢとして有望であるほか、エポキ
シ樹脂やフェノール樹脂のような熱硬化性の樹脂で使用
することも可能である。As the resin material M B usable for the non-maximum stress portion / member P B , polyamide imide (glass transition temperature: 288 ° C.), thermoplastic polyimide (glass transition temperature: 250 ° C.), polyether sulfone (Glass transition temperature: 225 ° C.), polyetherimide (glass transition temperature: 217 ° C.) or the like, or a polymer blend can be used.
Super heat resistant engineering plastics of 0 ° C or higher, and polyetherketone super heat resistant engineering plastics such as polyetherketoneetherketoneketone, polyetherketone, polyetheretherketone, polyetherkentketone, polyallyletherketone, etc. , Polyether nitrile, polyphenylene sulfide, liquid crystal polyester, etc. can be used alone or selected from polymer blends, and in particular,
The above-mentioned four types of resin materials having a glass transition temperature of 200 ° C. or higher are promising as the resin material M B , and can also be used as thermosetting resins such as epoxy resin and phenol resin.
【００２９】そして、部材ＰＡは、インペラの使用全温
度領域で少なくとも１００ＭＰａ以上の強度を有してい
ることが必要であるが、部材ＰＢの必要強度は部材ＰＡ
の必要強度の１／２以下程度であるため、このような条
件を満たせば必ずしも前記した樹脂材料ＭＢを用いる必
要はなく、強化繊維としては炭素繊維の使用が望ましい
が、同等レベルの弾性率が得られるのであれば、ガラス
繊維やその他の充填材を使用してもかまわない。そし
て、炭素繊維であれば２０〜３０重量％以上とすること
が望ましいといえる。The member P A needs to have a strength of at least 100 MPa or more in the entire temperature range of use of the impeller, but the required strength of the member P B is the member P A.
It is not necessary to use the resin material M B described above as long as such a condition is satisfied, and it is preferable to use carbon fiber as the reinforcing fiber, but the elastic modulus of the same level. If glass fiber is obtained, glass fiber or other fillers may be used. It can be said that the carbon fiber content is preferably 20 to 30% by weight or more.
【００３０】また、高温疲労特性，高温クリープ特性に
優れていることが要求される最大応力部位／部材ＰＡに
使用される樹脂材料ＭＡとしては、ポリエーテルケトン
エーテルケトン，ポリエーテルケトン、ポリエーテルエ
ーテルケトン，ポリエーテルケトンケトン，ポリアリル
エーテルケトン等のポリエーテルケトン系超耐熱性エン
ジニアリングプラスチックスや、ポリエーテルニトリ
ル，ポリエーテルサルホン，ポリサルホン，ポリアミド
イミド，熱可塑性ポリイミド，ポリエーテルイミド等の
単独またはポリマーブレンド等の中から選んで使用する
ことが可能である。Further, as the resin material M A used for the maximum stress portion / member P A required to have excellent high temperature fatigue properties and high temperature creep properties, polyetherketoneetherketone, polyetherketone, polyetherketone Polyetherketone-based super heat-resistant engineering plastics such as ether ether ketone, polyether ketone ketone, polyallyl ether ketone, polyether nitrile, polyether sulfone, polysulfone, polyamide imide, thermoplastic polyimide, polyether imide, etc. It is possible to use alone or by selecting from polymer blends and the like.
【００３１】さらに、補強用の強化繊維としては、従来
の射出成形において炭素繊維以外の繊維では樹脂製イン
ペラの要求特性を満足することが容易ではなかったが、
最大応力部位／部材ＰＡは射出成形以外の製造方法を用
いてもかまわないため、炭素繊維を使用することも必要
に応じて望ましく、炭素繊維の含有率は強度，耐久信頼
性の観点から２０重量％以上の配合比とすることが望ま
しく、射出成形の場合には４５重量％以上では成形がむ
つかしい。そして、炭素繊維の他にもガラス繊維，セラ
ミックス繊維，鉱物繊維等の無機繊維、ステンレス，黄
銅，ニッケル等の金属繊維、ポリアクリロニトリル繊
維，セルロース繊維，ポリフェニレンベンゾチアゾール
繊維，ポリエチレンテレフタレート繊維，液晶芳香族ポ
リエステル繊維，ポリビニルアルコール繊維，芳香族ポ
リアミド（アラミド）繊維等の有機繊維の中から選んで
使用することが可能である。また、チョップド繊維のみ
ならず連続繊維の使用も可能である。そして、連続繊維
グレードを使用して最大応力部位／部材ＰＡを製造する
場合には、６０〜７０重量％までは配合可能である。ま
た、繊維含有率を５０〜７０重量％にすれば、ガラス繊
維を用いることも可能である。Further, as the reinforcing fiber for reinforcement, it was not easy to satisfy the required characteristics of the resin impeller with fibers other than carbon fiber in the conventional injection molding,
Since the maximum stress portion / member P A is may be used a manufacturing method other than injection molding, it is also desirable as needed to use a carbon fiber content of carbon fiber strength, in terms of durability and reliability 20 It is desirable to use a compounding ratio of not less than wt%, and in the case of injection molding, if it is not less than 45 wt%, molding will be difficult. In addition to carbon fibers, glass fibers, ceramic fibers, mineral fibers and other inorganic fibers, stainless steel, brass, nickel and other metal fibers, polyacrylonitrile fibers, cellulose fibers, polyphenylene benzothiazole fibers, polyethylene terephthalate fibers, liquid crystal aromatics. It is possible to select and use organic fibers such as polyester fibers, polyvinyl alcohol fibers, and aromatic polyamide (aramid) fibers. Further, not only chopped fibers but also continuous fibers can be used. Then, in the production of maximum stress site / member P A using a continuous fiber grade, up to 60 to 70% by weight can be blended. Further, if the fiber content is 50 to 70% by weight, glass fibers can be used.
【００３２】この他に、難燃剤，酸化防止剤，紫外線吸
収剤，潤滑剤，着色剤，熱安定剤等の各種安定剤や充填
剤を成形性や機械的特性を損なわない範囲内で適宜添加
することもできる。In addition to the above, various stabilizers and fillers such as flame retardants, antioxidants, ultraviolet absorbers, lubricants, colorants, and heat stabilizers are appropriately added within a range that does not impair moldability and mechanical properties. You can also do it.
【００３３】さらに具体的には、充填剤として、炭酸カ
ルシウム，酸化亜鉛，酸化マグネシウム，炭酸マグネシ
ウム，水酸化アルミニウム，タルク，珪酸，珪酸カルシ
ウム，マイカ，ガラス，ガラスバルーン，石英バルー
ン，黒鉛，ホウ素，アルミナ，炭化珪素，炭化ホウ素，
ボリア，窒化ホウ素，窒化珪素，窒化アルミニウム，シ
リカ，ベリリウム，酸化ベリリウム等の無機粉末や、ア
スベスト，チタン酸カリ，炭素，黒鉛，ホウ素，アルミ
ナ，炭化珪素，炭化ホウ素，ボリア，石英，シリカ，ベ
リリウム，窒化ホウ素等の無機ウイスカや、アラミドパ
ルプ，マイクロセルロース，熱硬化性樹脂粉末等の中か
ら選んで使用することが可能であり、離型剤，無機フィ
ラーとしては、高級脂肪酸の低級アルコールエステル，
脂肪酸の多価アルコールエステル，流動パラフィン，硫
酸バリウム，シラス，酸化アンチモン等の中から選んで
使用することが可能であり、その他に、結晶化促進剤と
して、アルキレングリコール誘導体、ポリアルキレング
リコール誘導体、アイオノマー、雲母、二酸化チタン等
の中から選んで使用することが可能である。More specifically, as the filler, calcium carbonate, zinc oxide, magnesium oxide, magnesium carbonate, aluminum hydroxide, talc, silicic acid, calcium silicate, mica, glass, glass balloon, quartz balloon, graphite, boron, Alumina, silicon carbide, boron carbide,
Inorganic powder such as boria, boron nitride, silicon nitride, aluminum nitride, silica, beryllium, beryllium oxide, etc., asbestos, potassium titanate, carbon, graphite, boron, alumina, silicon carbide, boron carbide, boria, quartz, silica, beryllium It is possible to use by selecting from inorganic whiskers such as boron nitride, aramid pulp, microcellulose, thermosetting resin powder, etc., and as releasing agents and inorganic fillers, lower alcohol esters of higher fatty acids,
It is possible to select and use from polyhydric alcohol ester of fatty acid, liquid paraffin, barium sulfate, shirasu, antimony oxide, etc. In addition, alkylene glycol derivatives, polyalkylene glycol derivatives, ionomers as crystallization accelerators. It is possible to select and use from mica, titanium dioxide, and the like.
【００３４】最大応力部位／部材ＰＡと非最大応力部位
／部材ＰＢの接着性は、樹脂の組み合わせに依存する
が、前記したように発生応力の大きい部分が軸孔近傍に
集中しているため、高応力部位を含むように最大応力部
位／部材ＰＡの形状を設定すると、最大応力部位／部材
ＰＡと非最大応力部位／部材ＰＢとの間で接着強度不足
の問題はなくなる。The adhesiveness between the maximum stress portion / member P A and the non-maximum stress portion / member P B depends on the combination of resins, but as described above, the portion where the generated stress is large is concentrated near the shaft hole. Therefore, by setting the shape of the maximum stress portion / member P a to contain a high stress region, is not adhesive strength shortage problem between the maximum stress portion / member P a and the non-maximum stress site / member P B.
【００３５】また、接着性を良好なものとするために、
図３に示す下型３５ならびにピン３４の温度を高めに設
定して最大応力部位／部材ＰＡをキャビティ３２内で加
熱しておくのもよい。また、最大応力部位／部材ＰＡを
オーブン等で予備加熱した後に、金型に設定すればなお
望ましい。なお、射出成形可能でかつ強度特性，耐久信
頼性に優れた樹脂材料ＭＡが使用できる場合には、樹脂
材料ＭＡと樹脂材料ＭＢを用いた２色成形が可能な場合
もある。Further, in order to improve the adhesiveness,
It is also possible to set the temperature of the lower mold 35 and the pin 34 shown in FIG. 3 to a high temperature and heat the maximum stress site / member P A in the cavity 32. Further, it is more desirable to set the maximum stress portion / member P A in the mold after preheating it in an oven or the like. If the resin material M A that can be injection-molded and has excellent strength characteristics and durability reliability can be used, two-color molding using the resin material M A and the resin material M B may be possible.
【００３６】以上の方法で製造された樹脂製インペラで
は、最大応力部位／部材ＰＡとして連続繊維の使用や射
出成形では不可能な高繊維含有率のものの使用が可能と
なるため、炭素繊維のみならず例えばガラス繊維のよう
なより安価な繊維やより安価な樹脂が使用可能となる。
しかも、遠心応力が働く方向の強度が大きくなるよう
に、最大応力部位／部材ＰＡに適する射出成形金型のゲ
ート設定を行なったり、場合によっては所望の方向の強
度が大きくなるような積層タイプの複合材料を用いるこ
とによって、従来のインペラ以上の耐久信頼性を確保す
ることが可能となる。In the resin impeller manufactured by the above method, it is possible to use continuous fiber as the maximum stress portion / member P A or use a fiber having a high fiber content which cannot be obtained by injection molding. Instead, cheaper fibers such as glass fibers or cheaper resins can be used.
Moreover, as the strength in the direction centrifugal stress acts increases, the maximum stress portion / member P or performing gating injection mold suitable for A, the desired direction of intensity increases as a laminated type in some cases By using the above composite material, it is possible to secure durability durability more than that of the conventional impeller.
【００３７】一方、非最大応力部位／部材ＰＢについて
も高温下でのへたりや変形の防止に主眼を置いた材料選
択ができるため、従来の樹脂製インペラで発生すること
のあった前記課題の解決が可能となる。しかも、場合に
よっては繊維含有率の低減も可能であるため、形状の複
雑な翼の採用や翼厚さの低減による性能の向上も期待で
きる。On the other hand, the non-maximum stress portion / member P B can also be selected with a focus on preventing fatigue and deformation at high temperatures, so the above-mentioned problems that may occur with conventional resin impellers Can be solved. Moreover, since the fiber content can be reduced in some cases, it is expected that the performance is improved by adopting a blade having a complicated shape and reducing the blade thickness.
【００３８】図１は本発明による樹脂製インペラ４の一
実施態様を示すものであって、最大応力部位σ
ｍａｘは、インペラの最大径ｒｍａｘの高さＨと同じ高
さＨのところで且つ軸孔４ａの中心から４〜５ｍｍ（最
大径の７．５〜８．５％）のところにあるので、この最
大応力発生部位σｍａｘを含む半径方向の領域で且つ高
さ方向に±２〜３ｍｍの領域において軸孔４ａの表面お
よび背板部側の端部の表面から内側に入ったところに最
大応力部位／部材ＰＡを設けるようにした場合を示して
いる。FIG. 1 shows one embodiment of the resin impeller 4 according to the present invention, in which the maximum stress portion σ
Since max is at the same height H as the height H of the maximum diameter r max of the impeller and 4 to 5 mm (7.5 to 8.5% of the maximum diameter) from the center of the shaft hole 4a, In the radial region including the maximum stress generation region σ max and in the region of ± 2 to 3 mm in the height direction, the maximum stress region is located inside from the surface of the shaft hole 4a and the surface of the end portion on the back plate side. / The case where the member P A is provided is shown.
【００３９】また、図２は他の実施態様における樹脂製
インペラ４を示すものであって、最大応力発生部位σ
ｍａｘを含む半径方向の領域で且つ図１の場合よりも高
さ方向にさらに大きなものとした領域において軸孔４ａ
の表面および背板部側の端部の表面でそれぞれ実質的に
露出する状態にして最大応力部位／部材ＰＡを設けるよ
うにした場合を示している。Further, FIG. 2 shows a resin impeller 4 in another embodiment, in which the maximum stress generating portion σ
In the radial region including max and in the region that is made larger in the height direction than in the case of FIG. 1, the shaft hole 4a is formed.
2 shows the case where the maximum stress portion / member P A is provided in a state where the surface is substantially exposed and the surface of the end portion on the back plate side.
【００４０】この場合、図５に示すように、強化繊維Ｔ
は、ランダム方向に配向した繊維Ｔ（Ｔ１）とせず、円
周方向に配向した繊維Ｔ（Ｔ２）とすることが望まし
い。In this case, as shown in FIG.
Is preferably not the fibers T (T 1 ) oriented in the random direction but the fibers T (T 2 ) oriented in the circumferential direction.
【００４１】[0041]
【実施例】以下、本発明の実施例および比較例を示す
が、表１ないし表３にこれらをまとめて示す。EXAMPLES Examples and comparative examples of the present invention will be shown below, and these are summarized in Tables 1 to 3.
【００４２】実施例１ 最大応力部位／部材ＰＡの成形材料として、ポリエーテ
ルケトン（英国ＩＣＩ社製、Ｖｉｃｔｒｅｘ “ＰＥ
Ｋ” ２２０Ｇ）に、カーボン繊維（東邦レーヨン
（株）製“ＨＴＡ”平均繊維径：約７μｍ）を総量に対
して重量分率で３０重量％となるように配合した樹脂材
料ＭＡを用い、図４に示したような上型４１と、キャビ
ティ４２を形成する中型４３と、キャビティ４２を貫通
するピン４４と、下型４５と、樹脂溜４６を有する射出
成形用金型を用いて、樹脂製インペラの軸孔径に相当す
る軸孔を有する中空円筒形状（直径：１４ｍｍ、高さ：
２０ｍｍ、軸孔直径：７．５ｍｍ）の最大応力部位／部
材ＰＡを成形した。なお、図４に示した金型は、軸孔形
成のためにスライド可能なピン４４を有しており、樹脂
製インペラに働く遠心応力に対して大きな安全率を確保
できるように円柱の側面にフィルムゲートを設けて円周
方向に繊維が配向するようにしてある。また、フィルム
ゲートの反対側にはウエルドによる強度低下を低減する
ために樹脂溜４６を設けている。 Example 1 As a molding material for the maximum stress site / member P A , polyetherketone (Victrex “PE manufactured by ICI, UK) was used.
K ”220G), a resin material M A in which carbon fibers (“ HTA ”average fiber diameter: about 7 μm manufactured by Toho Rayon Co., Ltd.) are blended so that the weight fraction is 30% by weight with respect to the total amount, Using an upper mold 41, a middle mold 43 forming a cavity 42, a pin 44 penetrating the cavity 42, a lower mold 45, and an injection mold having a resin reservoir 46 as shown in FIG. Hollow cylindrical shape (diameter: 14 mm, height: having a shaft hole equivalent to the shaft hole diameter of the impeller made from
The maximum stress site / member P A having a diameter of 20 mm and a shaft hole diameter of 7.5 mm was molded. The mold shown in FIG. 4 has a slidable pin 44 for forming a shaft hole, and is provided on the side surface of the cylinder so as to secure a large safety factor against centrifugal stress acting on the resin impeller. A film gate is provided to orient the fibers in the circumferential direction. In addition, a resin reservoir 46 is provided on the opposite side of the film gate in order to reduce the decrease in strength due to welding.
【００４３】つぎに、図３に示した金型を用い、前記し
た方法で成形した最大応力部位／部材ＰＡを下型３５に
突出して設けたピン３４にセットした後、樹脂材料ＭＢ
を図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。なお、最大応力部位／部材ＰＡを金型にセットする
のに先立ち、オーブン中で２５０℃，３時間の予備加熱
を実施した。Next, using the mold shown in FIG. 3, the maximum stress portion / member P A molded by the above-described method is set on the pin 34 protruding from the lower mold 35, and then the resin material M B is set.
Was injected from the direction of arrow B shown in FIG. 3 to obtain a resin impeller (maximum diameter of impeller: 59 mm, height: 33 mm). In addition, prior to setting the maximum stress site / member P A in the mold, preliminary heating was performed in an oven at 250 ° C. for 3 hours.
【００４４】樹脂材料ＭＢとしては、三井東圧化学
（株）製、熱可塑性ポリイミド“ＡＵＲＵＭ ＰＬ４０
０Ｃ”にカーボン繊維（東邦レーヨン（株）製“ＨＴ
Ａ”平均繊維系：約７μｍ）を総量に対して重量分率で
３０重量％となるように配合した成形材料を用いた。The resin material M B is a thermoplastic polyimide “AURUM PL40” manufactured by Mitsui Toatsu Chemicals, Inc.
Carbon fiber (“HT” manufactured by Toho Rayon Co., Ltd.)
A "average fiber system: about 7 μm) was used in a proportion of 30% by weight based on the total weight, and a molding material was used.
【００４５】なお、射出成形には（株）日本製鋼所製７
５ＴＯＮ（型締圧）射出成形機を使用し、樹脂材料ＭＡ
については、シリンダ温度：３９０℃，金型温度：２１
０℃の成形条件で成形し、また、樹脂材料ＭＢについて
は、シリンダ温度：４２０℃，金型温度：２２０℃の成
形条件で成形して成形品である樹脂製インペラを得た。For the injection molding, 7 manufactured by Japan Steel Works, Ltd.
5 ton (clamping pressure) using an injection molding machine, the resin material M A
Cylinder temperature: 390 ° C, mold temperature: 21
The resin material M B was molded under molding conditions of 0 ° C., and the resin material M B was molded under molding conditions of cylinder temperature: 420 ° C. and mold temperature: 220 ° C. to obtain a resin impeller as a molded product.
【００４６】実施例２ 最大応力部位／部材ＰＡの成形材料として、ポリエーテ
ルエーテルケトン（英国ＩＣＩ社製、Ｖｉｃｔｒｅｘ
“ＰＥＥＫ” ４５０Ｇ）に、カーボン繊維（東邦レー
ヨン（株）製“ＨＴＡ”平均繊維径：約７μｍ）を総量
に対して重量分率で３０重量％となるように配合した樹
脂材料ＭＡを用い、図４に示したような射出成形用金型
を用いて、樹脂製インペラの軸孔径に相当する軸孔を有
する中空円筒形状（直径：１４ｍｍ、高さ：２０ｍｍ、
軸孔直径：７．５ｍｍ）の最大応力部位／部材ＰＡを成
形した。なお、図４に示した金型は、軸孔形成のために
スライド可能なピン４４を有しており、樹脂製インペラ
に働く遠心応力に対して大きな安全率を確保できるよう
に円柱の側面にフィルムゲートを設けて円周方向に繊維
が配向するようにしてある。また、フィルムゲートの反
対側にはウエルドによる強度低下を低減するために樹脂
溜４６を設けている。 Example 2 As a molding material for the maximum stress site / member P A , polyetheretherketone (Victrex, manufactured by ICI, UK) was used.
"PEEK" 450G) and a resin material M A in which carbon fibers ("HTA" manufactured by Toho Rayon Co., Ltd. average fiber diameter: about 7 µm) were blended so that the weight fraction was 30% by weight with respect to the total amount. Using an injection molding die as shown in FIG. 4, a hollow cylindrical shape (diameter: 14 mm, height: 20 mm, having a shaft hole corresponding to the shaft hole diameter of a resin impeller,
A maximum stress site / member P A having a shaft hole diameter of 7.5 mm was molded. The mold shown in FIG. 4 has a slidable pin 44 for forming a shaft hole, and is provided on the side surface of the cylinder so as to secure a large safety factor against centrifugal stress acting on the resin impeller. A film gate is provided to orient the fibers in the circumferential direction. In addition, a resin reservoir 46 is provided on the opposite side of the film gate in order to reduce the decrease in strength due to welding.
【００４７】つぎに、図３に示した金型を用い、前記し
た方法で成形した最大応力部位／部材ＰＡを下型３５に
突出して設けたピン３４にセットした後、樹脂材料ＭＢ
を図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。なお、最大応力部位／部材ＰＡを金型にセットする
のに先立ち、オーブン中で２５０℃，３時間の予備加熱
を実施した。Next, using the mold shown in FIG. 3, the maximum stress portion / member P A molded by the above-mentioned method is set on the pin 34 protruding from the lower mold 35, and then the resin material M B is set.
Was injected from the direction of arrow B shown in FIG. 3 to obtain a resin impeller (maximum diameter of impeller: 59 mm, height: 33 mm). In addition, prior to setting the maximum stress site / member P A in the mold, preliminary heating was performed in an oven at 250 ° C. for 3 hours.
【００４８】樹脂材料ＭＢとしては、三井東圧化学
（株）製、熱可塑性ポリイミド“ＡＵＲＵＭ ＰＬ４５
０Ｃ”にＥガラス繊維（平均繊維径：約１３μｍ）を総
量に対して重量分率で４０重量％となるように配合した
成形材料を用いた。The resin material M B is a thermoplastic polyimide “AURUM PL45” manufactured by Mitsui Toatsu Chemicals, Inc.
A molding material was used in which 0 C ″ was mixed with E glass fiber (average fiber diameter: about 13 μm) in a weight fraction of 40% by weight with respect to the total amount.
【００４９】なお、射出成形には（株）日本製鋼所製７
５ＴＯＮ（型締圧）射出成形機を使用し、樹脂材料ＭＡ
については、シリンダ温度：３８０℃，金型温度：２０
０℃の成形条件で成形し、また、樹脂材料ＭＢについて
は、シリンダ温度：４２０℃，金型温度：２３０℃の成
形条件で成形して成形品である樹脂製インペラを得た。For injection molding, 7 manufactured by Japan Steel Works, Ltd.
5 ton (clamping pressure) using an injection molding machine, the resin material M A
Cylinder temperature: 380 ° C, mold temperature: 20
The resin material M B was molded under the molding conditions of 0 ° C., and the resin material M B was molded under the molding conditions of cylinder temperature: 420 ° C. and mold temperature: 230 ° C. to obtain a resin impeller as a molded product.
【００５０】実施例３ 最大応力部位／部材ＰＡの成形材料として、ポリエーテ
ルケトンエーテルケトンケトン（独国ＢＡＳＦ社製、Ｕ
ＬＴＲＡ “ＰＥＫ” Ａ２０００）に、Ｅガラス繊維
（平均繊維径：約１３μｍ）を総量に対して重量分率で
３０重量％となるように配合した樹脂材料ＭＡを用い、
図４に示した射出成形用金型を用いて、樹脂製インペラ
の軸孔径に相当する軸孔を有する中空円筒形状（直径：
１４ｍｍ、高さ：２０ｍｍ、軸孔直径：７．５ｍｍ）の
最大応力部位／部材ＰＡを成形した。なお、図４に示し
た金型は、軸孔形成のためにスライド可能なピン４４を
有しており、樹脂製インペラに働く遠心応力に対して大
きな安全率を確保できるように円柱の側面にフィルムゲ
ートを設けて円周方向に繊維が配向するようにしてあ
る。また、フィルムゲートの反対側にはウエルドによる
強度低下を低減するために樹脂溜４６を設けている。 Example 3 As a molding material for the maximum stress site / member P A , polyetherketoneetherketoneketone (U, manufactured by BASF, Germany)
LTRA "PEK" A2000) was mixed with E glass fiber (average fiber diameter: about 13 μm) in a weight fraction of 30% by weight with respect to the total amount, and a resin material M A was used.
Using the injection molding die shown in FIG. 4, a hollow cylindrical shape having a shaft hole corresponding to the diameter of the shaft hole of the resin impeller (diameter:
14 mm, height: 20 mm, shaft hole diameter was molded maximum stress site / member P A of 7.5 mm). The mold shown in FIG. 4 has a slidable pin 44 for forming a shaft hole, and is provided on the side surface of the cylinder so as to secure a large safety factor against centrifugal stress acting on the resin impeller. A film gate is provided to orient the fibers in the circumferential direction. In addition, a resin reservoir 46 is provided on the opposite side of the film gate in order to reduce the decrease in strength due to welding.
【００５１】つぎに、図３に示した金型を用い、前記し
た方法で成形した最大応力部位／部材ＰＡを下型３５に
突出して設けたピン３４にセットした後、樹脂材料ＭＢ
を図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。なお、最大応力部位／部材ＰＡを金型にセットする
のに先立ち、オーブン中で２５０℃，３時間の予備加熱
を実施した。Next, using the mold shown in FIG. 3, the maximum stress portion / member P A molded by the above-mentioned method is set on the pin 34 protruding from the lower mold 35, and then the resin material M B is set.
Was injected from the direction of arrow B shown in FIG. 3 to obtain a resin impeller (maximum diameter of impeller: 59 mm, height: 33 mm). In addition, prior to setting the maximum stress site / member P A in the mold, preliminary heating was performed in an oven at 250 ° C. for 3 hours.
【００５２】樹脂材料ＭＢとしては、三井東圧化学
（株）製、熱可塑性ポリイミド“ＡＵＲＵＭ ＰＬ４０
０Ｃ”にカーボン繊維（東邦レーヨン（株）製“ＨＴ
Ａ”平均繊維径：約７μｍ）を総量に対して重量分率で
３０重量％となるように配合した成形材料を用いた。As the resin material M B , a thermoplastic polyimide “AURUM PL40” manufactured by Mitsui Toatsu Chemicals, Inc.
Carbon fiber (“HT” manufactured by Toho Rayon Co., Ltd.)
A "average fiber diameter: about 7 µm) was used in a proportion of 30% by weight based on the total weight, and a molding material was used.
【００５３】なお、射出成形には（株）日本製鋼所製７
５ＴＯＮ（型締圧）射出成形機を使用し、樹脂材料ＭＡ
については、シリンダ温度：４００℃，金型温度：２２
０℃の成形条件で成形し、また、樹脂材料ＭＢについて
は、シリンダ温度：４２０℃，金型温度：２２０℃の成
形条件で成形して成形品である樹脂製インペラを得た。For injection molding, 7 manufactured by Japan Steel Works, Ltd.
5 ton (clamping pressure) using an injection molding machine, the resin material M A
Cylinder temperature: 400 ° C, mold temperature: 22
The resin material M B was molded under molding conditions of 0 ° C., and the resin material M B was molded under molding conditions of cylinder temperature: 420 ° C. and mold temperature: 220 ° C. to obtain a resin impeller as a molded product.
【００５４】実施例４ 最大応力部位／部材ＰＡの成形材料として、ポリエーテ
ルエーテルケトン（英国ＩＣＩ社製、Ｖｉｃｔｒｅｘ
“ＰＥＥＫ” ４５０Ｇ）に、Ｅガラス繊維（平均繊維
径：約１３μｍ）を総量に対して重量分率で４０重量％
となるように配合した樹脂材料ＭＡを用い、図４に示し
たような射出成形用金型を用いて、樹脂製インペラの軸
孔径に相当する軸孔を有する中空円筒形状（直径：１４
ｍｍ、高さ：２０ｍｍ、軸孔直径：７．５ｍｍ）の最大
応力部位／部材ＰＡを成形した。なお、図４に示した金
型は、軸孔形成のためにスライド可能なピン４４を有し
ており、樹脂製インペラに働く遠心応力に対して大きな
安全率を確保できるように円柱の側面にフィルムゲート
を設けて円周方向に繊維が配向するようにしてある。ま
た、フィルムゲートの反対側にはウエルドによる強度低
下を低減するために樹脂溜４６を設けている。 Example 4 Polyether ether ketone (manufactured by ICI in England, Victrex) was used as a molding material for the maximum stress site / member P A.
"PEEK" 450G) with E glass fiber (average fiber diameter: about 13 μm) in a weight fraction of 40% by weight with respect to the total amount.
Using a resin material M A that has been compounded so that a hollow cylindrical shape (diameter: 14) having a shaft hole corresponding to the shaft hole diameter of a resin impeller is used by using an injection molding die as shown in FIG.
mm, height: 20 mm, shaft hole diameter: 7.5 mm), the maximum stress site / member P A was molded. The mold shown in FIG. 4 has a slidable pin 44 for forming a shaft hole, and is provided on the side surface of the cylinder so as to secure a large safety factor against centrifugal stress acting on the resin impeller. A film gate is provided to orient the fibers in the circumferential direction. In addition, a resin reservoir 46 is provided on the opposite side of the film gate in order to reduce the decrease in strength due to welding.
【００５５】つぎに、図３に示した金型を用い、前記し
た方法で成形した最大応力部位／部材ＰＡを下型３５に
突出して設けたピン３４にセットした後、樹脂材料ＭＢ
を図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。なお、最大応力部位／部材ＰＡを金型にセットする
のに先立ち、オーブン中で２５０℃，３時間の予備加熱
を実施した。Next, after using the mold shown in FIG. 3, the maximum stress portion / member P A molded by the above-mentioned method is set on the pin 34 protruding from the lower mold 35, and then the resin material M B is set.
Was injected from the direction of arrow B shown in FIG. 3 to obtain a resin impeller (maximum diameter of impeller: 59 mm, height: 33 mm). In addition, prior to setting the maximum stress site / member P A in the mold, preliminary heating was performed in an oven at 250 ° C. for 3 hours.
【００５６】樹脂材料ＭＢとしては、米国ＡＭＯＣＯ社
製、ポリアミドイミド“ＴＯＲＬＯＮ４２０３Ｌ”にカ
ーボン繊維（東邦レーヨン（株）製“ＨＴＡ”平均繊維
径：約７μｍ）を総量に対して重量分率で２０重量％と
なるように配合した成形材料を用いた。As the resin material M B , polyamide imide “TORLON 4203L” manufactured by AMOCO, USA, and carbon fiber (“HTA” manufactured by Toho Rayon Co., Ltd. “average fiber diameter: about 7 μm”) in a weight fraction of 20 are used. A molding material was used which was compounded so as to be wt%.
【００５７】なお、成形には、樹脂材料ＭＡについて
は、（株）日本製鋼所製７５ＴＯＮ（型締圧）射出成形
機を使用してシリンダ温度：３８０℃，金型温度：２０
０℃の成形条件で成形し、また、樹脂材料ＭＢについて
は、ＡＲＢＵＲＧ Ａ２１０−５０型射出成形機を用い
てシリンダ温度：４００℃，金型温度：２２０℃の成形
条件で成形して成形品である樹脂製インペラを得た。For the resin material M A , a 75 TON (mold clamping pressure) injection molding machine manufactured by Japan Steel Works, Ltd. was used for molding, and the cylinder temperature was 380 ° C. and the mold temperature was 20.
Molded under the molding conditions of 0 ° C., and for the resin material M B , a molded product was molded under the molding conditions of cylinder temperature: 400 ° C., mold temperature: 220 ° C. using an ARBURG A210-50 type injection molding machine. To obtain a resin impeller.
【００５８】実施例５ 最大応力部位／部材ＰＡの成形材料として、ポリアリル
エーテルケトン（米国ＡＭＯＣＯ社製、ＫＡＤＥＬ Ｅ
−１０００）に、カーボン繊維（東邦レーヨン（株）製
“ＨＴＡ”平均繊維径：約７μｍ）を総量に対して重量
分率で３０重量％となるように配合した樹脂材料ＭＡを
用い、図４に示した射出成形用金型を用いて、樹脂製イ
ンペラの軸孔径に相当する軸孔を有する中空円筒形状
（直径：１４ｍｍ、高さ：２０ｍｍ，軸孔直径：７．５
ｍｍ）の最大応力部位／部材ＰＡを成形した。なお、図
４に示した金型は、軸孔形成のためにスライド可能なピ
ン４４を有しており、樹脂製インペラに働く遠心応力に
対して大きな安全率を確保できるように円柱の側面にフ
ィルムゲートを設けて円周方向に繊維が配向するように
してある。また、フィルムゲートの反対側にはウエルド
による強度低下を低減するために樹脂溜４６を設けてい
る。 Example 5 As a molding material for the maximum stress portion / member P A , polyallyl ether ketone (KADEL E manufactured by AMOCO, USA) was used.
-1000) using a resin material M A in which carbon fibers (average fiber diameter of HTA manufactured by Toho Rayon Co., Ltd .: about 7 μm) were blended so that the weight fraction was 30% by weight with respect to the total amount. Using the injection molding die shown in FIG. 4, a hollow cylindrical shape (diameter: 14 mm, height: 20 mm, shaft hole diameter: 7.5) having a shaft hole corresponding to the shaft hole diameter of the resin impeller is used.
mm) maximum stress site / member P A was molded. The mold shown in FIG. 4 has a slidable pin 44 for forming a shaft hole, and is provided on the side surface of the cylinder so as to secure a large safety factor against centrifugal stress acting on the resin impeller. A film gate is provided to orient the fibers in the circumferential direction. In addition, a resin reservoir 46 is provided on the opposite side of the film gate in order to reduce the decrease in strength due to welding.
【００５９】つぎに、図３に示した金型を用い、前記し
た方法で成形した最大応力部位／部材ＰＡを下型３５に
突出して設けたピン３４にセットした後、樹脂材料ＭＢ
を図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。なお、最大応力部位／部材ＰＡを金型にセットする
のに先立ち、オーブン中で２５０℃，３時間の予備加熱
を実施した。Next, using the mold shown in FIG. 3, the maximum stress portion / member P A molded by the above-mentioned method is set on the pin 34 protruding from the lower mold 35, and then the resin material M B is set.
Was injected from the direction of arrow B shown in FIG. 3 to obtain a resin impeller (maximum diameter of impeller: 59 mm, height: 33 mm). In addition, prior to setting the maximum stress site / member P A in the mold, preliminary heating was performed in an oven at 250 ° C. for 3 hours.
【００６０】樹脂材料ＭＢとしては、米国ＡＭＯＣＯ社
製、ポリアミドイミド“ＴＯＲＬＯＮ４２０３Ｌ”にカ
ーボン繊維（東邦レーヨン（株）製“ＨＴＡ”平均繊維
径：約７μｍ）を総量に対して重量分率で３０重量％と
なるように配合した成形材料を用いた。As the resin material M B , polyamide imide “TORLON 4203L” manufactured by AMOCO, USA, and carbon fibers (“HTA” manufactured by Toho Rayon Co., Ltd. “average fiber diameter: about 7 μm”) were used in a weight fraction of 30 with respect to the total amount. A molding material was used which was compounded so as to be wt%.
【００６１】なお、成形には、樹脂材料ＭＡについて
は、（株）日本製鋼所製７５ＴＯＮ（型締圧）射出成形
機を使用してシリンダ温度：３９０℃，金型温度：２０
０℃の成形条件で成形し、また、樹脂材料ＭＢについて
は、ＡＲＢＵＲＧ Ａ２１０−５０型射出成形機を用い
てシリンダ温度：４００℃、金型温度：２２０℃の成形
条件で成形して成形品である樹脂製インペラを得た。For the molding of the resin material M A , a cylinder temperature of 390 ° C. and a mold temperature of 20 were used for the resin material M A using a 75TON (mold clamping pressure) injection molding machine manufactured by Japan Steel Works, Ltd.
Molded under the molding conditions of 0 ° C., and for the resin material M B , molded using an ARBURG A210-50 type injection molding machine under the molding conditions of cylinder temperature: 400 ° C., mold temperature: 220 ° C. To obtain a resin impeller.
【００６２】実施例６ 最大応力部位／部材ＰＡの成形材料として、ポリエーテ
ルケトンエーテルケトンケトン（独国ＢＡＳＦ社製、Ｕ
ＬＴＲＡ “ＰＥＫ” Ａ２０００）に、カーボン繊維
（東邦レーヨン（株）製“ＨＴＡ”平均繊維径：約７μ
ｍ）を総量に対して重量分率で２５重量％となるように
配合した樹脂材料ＭＡを用い、図４に示したような射出
成形用金型を用いて、樹脂製インペラの軸孔径に相当す
る軸孔を有する中空円筒形状（直径：１４ｍｍ、高さ：
２０ｍｍ，軸孔直径：７．５ｍｍ）の最大応力部位／部
材ＰＡを成形した。なお、図４に示した金型は、軸孔形
成のためにスライド可能なピン４４を有しており、樹脂
製インペラに働く遠心応力に対して大きな安全率を確保
できるように円柱の側面にフィルムゲートを設けて円周
方向に繊維が配向するようにしてある。また、フィルム
ゲートの反対側にはウエルドによる強度低下を低減する
ために樹脂溜４６を設けている。 Example 6 As a molding material for the maximum stress portion / member P A , polyether ketone ether ketone ketone (U, manufactured by BASF, Germany)
LTRA "PEK" A2000) with carbon fiber ("HTA" manufactured by Toho Rayon Co., Ltd. average fiber diameter: about 7μ)
m) was used in a proportion of 25% by weight based on the total weight of the resin material M A, and the axial hole diameter of the resin impeller was measured by using an injection molding die as shown in FIG. Hollow cylindrical shape with corresponding shaft hole (diameter: 14 mm, height:
20 mm, the axial hole diameter was molded maximum stress site / member P A of 7.5 mm). The mold shown in FIG. 4 has a slidable pin 44 for forming a shaft hole, and is provided on the side surface of the cylinder so as to secure a large safety factor against centrifugal stress acting on the resin impeller. A film gate is provided to orient the fibers in the circumferential direction. In addition, a resin reservoir 46 is provided on the opposite side of the film gate in order to reduce the decrease in strength due to welding.
【００６３】つぎに、図３に示した金型を用い、前記し
た方法で成形した最大応力部位／部材ＰＡを下型３５に
突出して設けたピン３４にセットした後、樹脂材料ＭＢ
を図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。なお、最大応力部位／部材ＰＡを金型にセットする
のに先立ち、オーブン中で２５０℃，３時間の予備加熱
を実施した。Next, using the mold shown in FIG. 3, the maximum stress portion / member P A molded by the above-described method is set on the pin 34 protruding from the lower mold 35, and then the resin material M B is set.
Was injected from the direction of arrow B shown in FIG. 3 to obtain a resin impeller (maximum diameter of impeller: 59 mm, height: 33 mm). In addition, prior to setting the maximum stress site / member P A in the mold, preliminary heating was performed in an oven at 250 ° C. for 3 hours.
【００６４】樹脂材料ＭＢとしては、米国ＡＭＯＣＯ社
製、ポリアミドイミド“ＴＯＲＬＯＮ４２０３Ｌ”にカ
ーボン繊維（東邦レーヨン（株）製“ＨＴＡ”平均繊維
径：約７μｍ）を総量に対して重量分率で２０重量％と
なるように配合した成形材料を用いた。As the resin material M B , polyamide imide “TORLON 4203L” manufactured by AMOCO, USA, and carbon fiber (“HTA” manufactured by Toho Rayon Co., Ltd. “average fiber diameter: about 7 μm”) in a weight fraction of 20 relative to the total amount are used. A molding material was used which was compounded so as to be wt%.
【００６５】なお、成形には、樹脂材料ＭＡについて
は、（株）日本製鋼所製７５ＴＯＮ（型締圧）射出成形
機を使用してシリンダ温度：４００℃，金型温度：２２
０℃の成形条件で成形し、また、樹脂材料ＭＢについて
は、ＡＲＢＵＲＧ Ａ２１０−５０型射出成形機を用い
てシリンダ温度：４００℃、金型温度：２２０℃の成形
条件で成形して成形品である樹脂製インペラを得た。In the molding, for the resin material M A , a 75 TON (mold clamping pressure) injection molding machine manufactured by Japan Steel Works, Ltd. was used, and the cylinder temperature was 400 ° C. and the mold temperature was 22.
Molded under the molding conditions of 0 ° C., and for the resin material M B , molded using an ARBURG A210-50 type injection molding machine under the molding conditions of cylinder temperature: 400 ° C., mold temperature: 220 ° C. To obtain a resin impeller.
【００６６】比較例１ 成形材料として、ポリエーテルサルホン（英国ＩＣＩ社
製、Ｖｉｃｔｒｅｘ“ＰＥＳ” ３６００Ｇ）に、カー
ボン繊維（東邦レーヨン（株）製“ＨＴＡ”平均繊維
径：約７μｍ）を総量に対して重量分率で３０重量％と
なるように配合した材料を用い、図３に示した金型を用
いて、樹脂材料を図３に示した矢印Ｂ方向から射出して
樹脂製インペラ（インペラの最大径：５９ｍｍ、高さ：
３３ｍｍ）を得た。 Comparative Example 1 As a molding material, polyether sulfone (manufactured by ICI, UK, Victrex "PES" 3600G) and carbon fibers ("HTA" manufactured by Toho Rayon Co., Ltd. average fiber diameter: about 7 μm) were used in total. On the other hand, using a material mixed so that the weight fraction is 30% by weight, the resin material is injected from the direction of arrow B shown in FIG. 3 by using the mold shown in FIG. Maximum diameter: 59 mm, height:
33 mm) was obtained.
【００６７】なお、成形には（株）日本製鋼所製７５Ｔ
ＯＮ（型締圧）射出成形機を使用してシリンダ温度：３
５０℃，金型温度：１９０℃の成形条件で成形して成形
品である樹脂製インペラを得た。For molding, 75T manufactured by Japan Steel Works, Ltd.
Cylinder temperature: 3 using ON (mold clamping pressure) injection molding machine
Molding was performed under the molding conditions of 50 ° C. and mold temperature: 190 ° C. to obtain a resin impeller as a molded product.
【００６８】比較例２ 成形材料として、ポリアミドイミド（米国ＡＭＯＣＯ社
製、“ＴＯＲＬＯＮ４２０３Ｌ”）に、カーボン繊維
（東邦レーヨン（株）製“ＨＴＡ”平均繊維径：約７μ
ｍ）を総量に対して重量分率で３０重量％となるように
配合した材料を用い、図３に示した金型を用いて、樹脂
材料を図３に示した矢印Ｂ方向から射出して樹脂製イン
ペラ（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）
を得た。 Comparative Example 2 As a molding material, polyamide imide ("TORLON 4203L" manufactured by AMOCO, USA) and carbon fiber ("HTA" manufactured by Toho Rayon Co., Ltd.) average fiber diameter: about 7 μm
m) is used in a proportion of 30% by weight with respect to the total amount, and the resin material is injected from the direction of arrow B shown in FIG. 3 using the mold shown in FIG. Resin impeller (maximum diameter of impeller: 59 mm, height: 33 mm)
Got
【００６９】なお、成形にはＡＲＢＵＲＧ Ａ２１０−
５０型射出成形機を用いてシリンダ温度：４００℃、金
型温度：２２０℃の成形条件で成形して成形品である樹
脂製インペラを得た。In molding, ARBURG A210-
Using a 50-type injection molding machine, molding was performed under the molding conditions of a cylinder temperature of 400 ° C. and a mold temperature of 220 ° C. to obtain a resin impeller as a molded product.
【００７０】比較例３ 成形材料として、ポリエーテルエーテルケトン（英国Ｉ
ＣＩ社製、Ｖｉｃｔｒｅｘ “ＰＥＥＫ” ４５０Ｇ）
に、カーボン繊維（東邦レーヨン（株）製“ＨＴＡ”平
均繊維径：約７μｍ）を総量に対して重量分率で３０重
量％となるように配合した材料を用い、図３に示した金
型を用いて、樹脂材料を図３に示した矢印Ｂ方向から射
出して樹脂製インペラ（インペラの最大径：５９ｍｍ、
高さ：３３ｍｍ）を得た。 Comparative Example 3 As a molding material, polyetheretherketone (UK I
CI, Victrex "PEEK" 450G)
In addition, a carbon fiber (“HTA” manufactured by Toho Rayon Co., Ltd. average fiber diameter: about 7 μm) was used in such a manner that the weight fraction was 30% by weight with respect to the total amount. The resin impeller is injected from the direction of arrow B shown in FIG. 3 by using a resin impeller (maximum diameter of impeller: 59 mm,
Height: 33 mm) was obtained.
【００７１】なお、成形には（株）日本製鋼所製７５Ｔ
ＯＮ（型締圧）射出成形機を使用してシリンダ温度：３
９０℃，金型温度：２００℃の成形条件で成形して成形
品である樹脂製インペラを得た。For molding, 75T manufactured by Japan Steel Works, Ltd.
Cylinder temperature: 3 using ON (mold clamping pressure) injection molding machine
Molding was performed under the molding conditions of 90 ° C. and mold temperature: 200 ° C. to obtain a resin impeller as a molded product.
【００７２】比較例４ 成形材料として、ポリエーテルケトン（英国ＩＣＩ社
製、Ｖｉｃｔｒｅｘ “ＰＥＫ” ２２０Ｇ）に、カー
ボン繊維（東邦レーヨン（株）製“ＨＴＡ”平均繊維
径：約７μｍ）を総量に対して重量分率で３５重量％と
なるように配合した材料を用い、図３に示した金型を用
いて、樹脂材料を図３に示した矢印Ｂ方向から射出して
樹脂製インペラ（インペラの最大径：５９ｍｍ、高さ：
３３ｍｍ）を得た。 Comparative Example 4 As a molding material, polyetherketone (manufactured by ICI, UK, Victrex “PEK” 220G) and carbon fibers (“HTA” manufactured by Toho Rayon Co., Ltd. average fiber diameter: about 7 μm) were used with respect to the total amount. 3% by weight and the resin material is injected in the direction of arrow B shown in FIG. 3 by using the mold shown in FIG. Maximum diameter: 59 mm, height:
33 mm) was obtained.
【００７３】なお、成形には（株）日本製鋼所製７５Ｔ
ＯＮ（型締圧）射出成形機を使用してシリンダ温度：４
００℃，金型温度：２２０℃の成形条件で成形して成形
品である樹脂製インペラを得た。For molding, 75T manufactured by Japan Steel Works, Ltd.
Cylinder temperature: 4 using ON (mold clamping pressure) injection molding machine
Molding was performed under the molding conditions of 00 ° C. and mold temperature: 220 ° C. to obtain a resin impeller as a molded product.
【００７４】比較例５ 成形材料として、三井東圧化学（株）製、熱可塑性ポリ
イミド“ＡＵＲＵＭＰＬ４５０Ｃ”にカーボン繊維（東
邦レーヨン（株）製“ＨＴＡ”平均繊維径：約７μｍ）
を総量に対して重量分率で３０重量％となるように配合
した材料を用い、図３に示した金型を用いて、樹脂材料
を図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。 Comparative Example 5 As a molding material, a thermoplastic polyimide "AURUMPL450C" manufactured by Mitsui Toatsu Kagaku Co., Ltd. and carbon fiber ("HTA" manufactured by Toho Rayon Co., Ltd. average fiber diameter: about 7 μm) were used.
Was used in a proportion of 30% by weight with respect to the total amount, and the resin material was injected from the direction of arrow B shown in FIG. 3 using the mold shown in FIG. An impeller (maximum diameter of impeller: 59 mm, height: 33 mm) was obtained.
【００７５】なお、成形には（株）日本製鋼所製７５Ｔ
ＯＮ（型締圧）射出成形機を使用してシリンダ温度：４
２０℃，金型温度：２２０℃の成形条件で成形して成形
品である樹脂製インペラを得た。For molding, 75T manufactured by Japan Steel Works, Ltd.
Cylinder temperature: 4 using ON (mold clamping pressure) injection molding machine
Molding was performed under the molding conditions of 20 ° C. and mold temperature: 220 ° C. to obtain a resin impeller as a molded product.
【００７６】比較例６ 成形材料として、出光興産（株）製、ポリエーテルニト
リル“ＩＤ３００ナチュラル”に、カーボン繊維（東邦
レーヨン（株）製“ＨＴＡ”平均繊維径：約７μｍ）を
総量に対して重量分率で３０重量％となるように配合し
た材料を用い、図３に示した金型を用いて、樹脂材料を
図３に示した矢印Ｂ方向から射出して樹脂製インペラ
（インペラの最大径：５９ｍｍ、高さ：３３ｍｍ）を得
た。 Comparative Example 6 As a molding material, polyether nitrile "ID300 Natural" manufactured by Idemitsu Kosan Co., Ltd. and carbon fiber ("HTA" manufactured by Toho Rayon Co., Ltd. average fiber diameter: about 7 μm) was used with respect to the total amount. Using a material compounded to have a weight fraction of 30% by weight, the resin material is injected in the direction of arrow B shown in FIG. 3 by using the mold shown in FIG. Diameter: 59 mm, height: 33 mm) was obtained.
【００７７】なお、成形には（株）日本製鋼所製７５Ｔ
ＯＮ（型締圧）射出成形機を使用してシリンダ温度：３
６０℃，金型温度：２００℃の成形条件で成形して成形
品である樹脂製インペラを得た。For molding, 75T manufactured by Japan Steel Works, Ltd.
Cylinder temperature: 3 using ON (mold clamping pressure) injection molding machine
Molding was performed under the molding conditions of 60 ° C. and mold temperature: 200 ° C. to obtain a resin impeller as a molded product.
【００７８】試験例 上記した実施例１〜６，比較例１〜６のすべての場合に
ついて、１８０℃，５時間のペレットの予備乾燥とポリ
アミドイミドを用いた成形品を除くすべての成形品の残
留ひずみおよび結晶化の促進（マトリックス樹脂が結晶
性高分子材料の場合）を目的とした２００℃〜２３０
℃、３時間〜５時間の熱処理（アニール処理）を実施し
た。また、ポリアミドイミドを用いた成形品について
は、１６５℃×２４時間＋２４５℃×２時間＋２６０℃
×１７０時間のアフターキュアを行なった。 Test Example In all cases of Examples 1 to 6 and Comparative Examples 1 to 6 described above, pre-drying of pellets at 180 ° C. for 5 hours and residual of all molded articles except molded articles using polyamideimide 200 ° C to 230 for the purpose of promoting strain and crystallization (when the matrix resin is a crystalline polymer material)
A heat treatment (annealing treatment) was performed at a temperature of 3 hours to 5 hours. For molded products using polyamide-imide, 165 ° C x 24 hours + 245 ° C x 2 hours + 260 ° C
After-curing was performed for 170 hours.
【００７９】また、成形品はマイクロフォーカスＸ線検
査装置を用いて全数検査し、クラック，ボイド，異物を
含む樹脂製インペラは以下の試験に供しなかった。All the molded products were inspected using a microfocus X-ray inspection apparatus, and resin impellers containing cracks, voids and foreign substances were not subjected to the following tests.
【００８０】本発明の効果を確認するために以下の５つ
の試験を実施した。The following five tests were conducted to confirm the effect of the present invention.
【００８１】（１）バースト試験：製品強度を確認する
ために、スピンテスターを用いてバースト試験を実施し
た。このバースト試験は、真空ポンプを用いて減圧した
状態でタービンロータ側に高温のガスを供給し、樹脂製
インペラの破壊回転数を測定した。(1) Burst test: In order to confirm the product strength, a burst test was carried out using a spin tester. In this burst test, high-temperature gas was supplied to the turbine rotor side while the pressure was reduced using a vacuum pump, and the breaking rotation speed of the resin impeller was measured.
【００８２】（２）２００時間耐久試験：製品の長期耐
久性能を調べるために、コンプレッサ出口温度：１６０
℃、インペラ回転数：１３０，０００ｒｐｍの条件で連
続耐久試験を実施した。吸気温度はコンプレッサ出口温
度が一定となるようにコントロールした。耐久時間は２
００時間とし、２００時間以内にバーストならびに機能
低下の発生しなかったインペラを合格と判定した。(2) 200-hour endurance test: To check the long-term endurance performance of the product, the compressor outlet temperature: 160
A continuous durability test was carried out under conditions of ° C and impeller rotation speed: 130,000 rpm. The intake air temperature was controlled so that the compressor outlet temperature was constant. Endurance time is 2
The time was set to 00 hours, and the impeller in which neither burst nor functional deterioration occurred within 200 hours was determined to be acceptable.
【００８３】（３）ナット座面のへたり量測定：インペ
ラをシャフトにナットで固定した状態でオーブン中に１
６０℃，２００時間放置し、ナット座面のへたり量を測
定した。このとき、締め付けトルクは１．５ｋｇ・ｍと
した。(3) Depression measurement of the nut seating surface: 1 in the oven with the impeller fixed to the shaft with nuts
After standing at 60 ° C. for 200 hours, the amount of fatigue of the nut bearing surface was measured. At this time, the tightening torque was 1.5 kg · m.
【００８４】（４）インペラ背板部のうねりの発生の有
無の確認：コンプレッサ出口温度：１９０℃，インペラ
回転数：１３０，０００ｒｐｍ，１時間の耐久試験後の
インペラ背板部のうねりの発生の有無を調べた。(4) Confirmation of occurrence of undulation of impeller back plate: Compressor outlet temperature: 190 ° C., impeller rotation speed: 130,000 rpm, occurrence of undulation of impeller back plate after 1 hour durability test Existence was checked.
【００８５】（５）インペラの翼付け根部のクラックの
発生の有無の確認：コンプレッサ出口温度：１６５℃，
インペラ回転数：１６５，０００ｒｐｍ，１時間の耐久
試験後のインペラの翼付け根部のクラックの発生の有無
を調べた。(5) Confirmation of the occurrence of cracks at the blade root of the impeller: Compressor outlet temperature: 165 ° C,
Impeller rotation speed: 165,000 rpm, the presence or absence of cracks at the root of the blade of the impeller after a durability test for 1 hour was examined.
【００８６】表１ないし表３に上記５つの試験結果を示
す。Tables 1 to 3 show the results of the above five tests.
【００８７】[0087]
【表１】 [Table 1]
【００８８】[0088]
【表２】 [Table 2]
【００８９】[0089]
【表３】 [Table 3]
【００９０】表１に示した６つの実施例および表２に示
した６つの比較例からも明らかなように、本発明では、
耐熱性の優れた１種類の樹脂を全体に用いた場合に見ら
れる長期耐久性能の不足（比較例２，比較例５）と、長
期耐久性能の優れた１種類の樹脂を全体に用いた場合に
見られる高温条件下での不具合の発生（比較例３，比較
例４）という、従来技術では克服が容易ではなかった２
つの問題点を同時に解決できることがわかる。As is clear from the six examples shown in Table 1 and the six comparative examples shown in Table 2, in the present invention,
Insufficient long-term durability performance when one type of resin with excellent heat resistance is used throughout (Comparative Examples 2 and 5), and when one type of resin with excellent long-term durability performance is used throughout In the prior art, it was not easy to overcome the problem of occurrence of defects under high temperature conditions (Comparative Example 3 and Comparative Example 4) 2
It turns out that one problem can be solved at the same time.
【００９１】また、実施例２〜実施例４に示したような
安価なガラス繊維の使用や、実施例６に示したカーボン
繊維の使用量の削減等、副次的なメリットも多い。Further, there are many secondary merits such as the use of inexpensive glass fibers as shown in Examples 2 to 4 and the reduction of the amount of carbon fibers used as shown in Example 6.
【００９２】さらに、この種のインペラでは、図６に模
型的に示すように、インペラ４の軸方向に対し直角方向
の断面の面積が最小径部ｒｍｉｎから最大径部位ｒ
ｍａｘにかけて大きく変化するため、従来の製造方法で
は、最も断面積の大きい最大径部ｒｍａｘ部位で軸孔内
面に“ひけ”Ｓが発生してしまうことがあり、軸孔４ａ
の寸法が大きくばらついたときには、軸孔径が、仮想線
で示すシャフト径に対して過大になって、インペラ回転
時の異音の発生原因となるために、これまでは寸法不良
品の廃棄または軸孔４ａの機械加工を余儀なくされてい
たが、本発明では、部材ＰＡの軸方向に対し垂直方向の
断面の面積をほぼ一定にすれば、軸孔４ａのばらつきが
低減できるため、寸法不良品の発生が大きく削減できる
ことが判明した。Furthermore, in this type of impeller, as shown in a model in FIG. 6, the cross-sectional area of the impeller 4 in the direction perpendicular to the axial direction has an area from the minimum diameter portion r min to the maximum diameter portion r.
In the conventional manufacturing method, a "sink" S may be generated on the inner surface of the shaft hole at the maximum diameter portion r max having the largest cross-sectional area because it greatly changes depending on the shaft hole 4a.
If the dimensions of the shaft vary greatly, the shaft hole diameter becomes too large with respect to the shaft diameter shown by the phantom line, causing abnormal noise when the impeller rotates. Although the machining of the hole 4a was unavoidable, in the present invention, if the area of the cross section of the member P A in the direction perpendicular to the axial direction is made substantially constant, the variation of the shaft hole 4a can be reduced, so that the dimension defective product is obtained. It has been found that the occurrence of can be greatly reduced.
【００９３】この場合、最大応力部位／部材ＰＡの軸孔
方向に対し直角方向の断面は、軸孔４ａの中心から６ｍ
ｍ以上あることが望ましい。その理由は、部材ＰＡを形
成する材料ＭＡと部材ＰＢを形成する材料ＭＢとの界面
が、比較的応力の大きい部位に位置してしまうと、図７
に示すように、材料ＭＡと材料ＭＢとの界面が破壊起点
となる可能性を有しているためである。この材料ＭＡと
材料ＭＢとの界面の接着強度は、材料の組み合わせによ
っても若干変動するが、材料ＭＡまたは材料ＭＢの単独
の場合と比較すると、強度がかなり低くなってしまうこ
とがあるため、材料ＭＡと材料ＭＢとの界面が、発生応
力の大きい部位に含まれないようにすることが必要であ
る。In this case, the cross section of the maximum stress portion / member P A in the direction perpendicular to the axial hole direction is 6 m from the center of the axial hole 4a.
It is desirable that m or more. The reason is that the interface between the material M B forming the material M A and the member P B to form a member P A is thus positioned a large portion of relatively stress, FIG. 7
This is because the interface between the material M A and the material M B may serve as a fracture starting point, as shown in FIG. Although the adhesive strength at the interface between the material M A and the material M B slightly varies depending on the combination of the materials, the strength may be considerably lower than that of the material M A or the material M B alone. Therefore, it is necessary to prevent the interface between the material M A and the material M B from being included in the site where the generated stress is large.
【００９４】[0094]
【発明の効果】以上説明したように、本発明による繊維
強化樹脂製インペラでは、最大応力発生部を含む部位と
それ以外の部位とで材料を異なったものにすることによ
って、従来の場合には同時に解決することが容易ではな
かった、（１）バースト回転数の増加、（２）耐久寿命
の増加、（３）端面のへたりの減少、（４）背板部のう
ねりの低減、（５）翼付け根部のクラックの防止、
（６）安価な樹脂ならびに繊維の使用、（７）軸孔の寸
法精度の向上等、の諸課題の解決が可能となった。As described above, in the fiber-reinforced resin impeller according to the present invention, by using different materials for the portion including the maximum stress generating portion and the other portion, the conventional case can be obtained. It was not easy to solve at the same time, (1) increase in burst rotation speed, (2) increase in durability life, (3) decrease in end face sag, (4) reduction of back plate waviness, (5) ) Prevention of cracks at the root of the wing,
Various problems such as (6) use of inexpensive resin and fiber, and (7) improvement of dimensional accuracy of shaft hole can be solved.
【図１】本発明の一実施態様による樹脂製インペラの断
面説明図である。FIG. 1 is a cross-sectional explanatory view of a resin impeller according to an embodiment of the present invention.
【図２】本発明の他の実施態様による樹脂製インペラの
断面説明図である。FIG. 2 is a cross-sectional explanatory view of a resin impeller according to another embodiment of the present invention.
【図３】繊維強化樹脂製インペラの射出成形用金型の構
造を示す断面説明図である。FIG. 3 is a cross-sectional explanatory view showing the structure of an injection molding die for a fiber-reinforced resin impeller.
【図４】最大応力部位／部材ＰＡの射出成形用金型の構
造を示すピン平行方向断面説明図（図４の（ａ））およ
びピン直交方向断面説明図（図４の（ｂ））である。4 is a cross-sectional explanatory view in the direction parallel to the pin (FIG. 4A) and a cross-sectional explanatory view in the direction orthogonal to the pin (FIG. 4B) showing the structure of the injection molding die for the maximum stress portion / member P A. Is.
【図５】強化繊維の配向方向を示す正面説明図（図５の
（ａ））および断面説明図（図５の（ｂ））である。5 is a front explanatory view ((a) of FIG. 5) and a cross-sectional explanatory view ((b) of FIG. 5) showing the orientation direction of the reinforcing fibers.
【図６】断面積の大きい部位で“ひけ”が発生する様子
を示す断面説明図である。FIG. 6 is a cross-sectional explanatory view showing a state in which a “sink” occurs at a portion having a large cross-sectional area.
【図７】材料ＭＡと材料ＭＢとの境界の軸孔中心からの
距離とバースト回転数との関係を示すグラフである。FIG. 7 is a graph showing the relationship between the distance from the center of the axial hole at the boundary between the material M A and the material M B and the burst rotation speed.
【図８】繊維強化樹脂製インペラをそなえたターボチャ
ージャの構造例を示す断面説明図である。FIG. 8 is a cross-sectional explanatory view showing a structural example of a turbocharger provided with a fiber-reinforced resin impeller.
【図９】繊維強化樹脂製インペラの一般的な構造を示す
断面説明図である。FIG. 9 is an explanatory sectional view showing a general structure of a fiber-reinforced resin impeller.
【図１０】繊維強化樹脂製インペラの一般的な構造を示
す正面説明図である。FIG. 10 is a front view showing a general structure of a fiber-reinforced resin impeller.
【図１１】繊維強化樹脂製インペラに関する問題点およ
び解決の必要な課題をまとめた説明図である。FIG. 11 is an explanatory diagram summarizing the problems and the problems to be solved regarding the fiber-reinforced resin impeller.
【図１２】繊維強化樹脂製インペラに働く遠心応力の分
布を示す右半分概略説明図である。FIG. 12 is a right half schematic illustration showing distribution of centrifugal stress acting on a fiber-reinforced resin impeller.
４ 繊維強化樹脂製インペラ ４ａ 繊維強化樹脂製インペラの軸孔 ＰＡ 最大応力部位／部材 ＰＢ 非最大応力部位／部材 ＭＡ 最大応力部位／部材の繊維強化樹脂材料 ＭＢ 非最大応力部位／部材の繊維強化樹脂材料4 Fiber Reinforced Resin Impeller 4a Fiber Reinforced Resin Impeller Shaft Hole P A Maximum Stress Site / Member P B Non-Maximum Stress Site / Member M A Maximum Stress Site / Member Fiber Reinforced Resin Material M B Non-Maximum Stress Site / Member Fiber reinforced resin material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０２Ｂ 39/00 Ｐ 9332−3Ｇ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location F02B 39/00 P 9332-3G
Claims (3)
大応力部位／部材ＰＡと、前記最大応力部位／部材ＰＡ
を除く非最大応力部位／部材ＰＢを有してなる繊維強化
樹脂製インペラにおいて、最大応力部位／部材ＰＡと非
最大応力部位／部材ＰＢをそれぞれ形成する繊維強化樹
脂材料ＭＡ，ＭＢのマトリックス樹脂および／または強
化繊維の繊維含有率が異なっていることを特徴とする繊
維強化樹脂製インペラ。1. A maximum stress portion / member P A having a shape including a maximum stress generating portion, and the maximum stress portion / member P A.
In the fiber reinforced plastic impeller comprising a non-maximum stress site / member P B except, fiber-reinforced resin material M A forming maximum stress site / member P A and the non-maximum stress site / member P B, respectively, M A fiber-reinforced resin impeller, wherein the matrix resin of B and / or the reinforcing fibers have different fiber contents.
ペラであって、軸に対するインペラの最大径の断面で、
軸中心より最大径の７．５〜８．５％までの間の最大応
力発生部位を含み、且つ該断面の軸方向に対して±２〜
３ｍｍの部分からなる円筒部位を少なくとも含む最大応
力部位／部材ＰＡと、前記最大応力部位／部材ＰＡを除
く非最大応力部位／部材ＰＢを有してなり、最大応力部
位／部材ＰＡと非最大応力部位／部材ＰＢをそれぞれ形
成する繊維強化樹脂材料ＭＡ，ＭＢのマトリックス樹脂
および／または強化繊維の繊維含有率が異なっている請
求項１に記載の繊維強化樹脂製インペラ。2. A fiber reinforced resin impeller rotating about an axis, the cross section having the maximum diameter of the impeller with respect to the axis,
Includes a maximum stress generating portion between 7.5 and 8.5% of the maximum diameter from the axial center, and is ± 2 to the axial direction of the cross section.
A maximum stress portion / member P A comprising at least a cylindrical portion comprising a portion of 3 mm, it has a non-maximum stress site / member P B excluding the maximum stress portion / member P A, maximum stress site / member P A The fiber-reinforced resin impeller according to claim 1, wherein the fiber-reinforced resin materials M A and M B forming the non-maximum stress portion / member P B have different fiber content rates of the matrix resin and / or the reinforcing fiber.
大径の７．５〜８．５％までの間の部分を含む最大応力
部位／部材ＰＡの内部の繊維配向をインペラの円周方向
に沿う配向とした請求項２に記載の繊維強化樹脂製イン
ペラ。3. The fiber orientation inside the maximum stress portion / member P A including the portion at the same height as the maximum diameter portion and from 7.5% to 8.5% of the maximum diameter from the axial center of the impeller. The fiber-reinforced resin impeller according to claim 2, which is oriented along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5194893A JPH0749099A (en) | 1993-08-05 | 1993-08-05 | Impeller made of fiber reinforced resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5194893A JPH0749099A (en) | 1993-08-05 | 1993-08-05 | Impeller made of fiber reinforced resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0749099A true JPH0749099A (en) | 1995-02-21 |
Family
ID=16332086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5194893A Pending JPH0749099A (en) | 1993-08-05 | 1993-08-05 | Impeller made of fiber reinforced resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749099A (en) |
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1993
- 1993-08-05 JP JP5194893A patent/JPH0749099A/en active Pending
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