JPS62279913A - Manufacture of impeller made of fiber reinforced resin - Google Patents
Manufacture of impeller made of fiber reinforced resinInfo
- Publication number
- JPS62279913A JPS62279913A JP61122878A JP12287886A JPS62279913A JP S62279913 A JPS62279913 A JP S62279913A JP 61122878 A JP61122878 A JP 61122878A JP 12287886 A JP12287886 A JP 12287886A JP S62279913 A JPS62279913 A JP S62279913A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- ring
- core
- plaster
- impeller
- 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 23
- 239000011347 resin Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000835 fiber Substances 0.000 title abstract description 6
- 239000011505 plaster Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000009415 formwork Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 abstract description 15
- 238000010068 moulding (rubber) Methods 0.000 abstract description 4
- 229910052602 gypsum Inorganic materials 0.000 description 23
- 239000010440 gypsum Substances 0.000 description 23
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- -1 benzoic acid compound Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
（産業上の利用分野）
この発明は繊維強化樹脂製インペラの製造方法に関する
ものである。Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) This invention relates to a method of manufacturing an impeller made of fiber reinforced resin.
（従来の技術）
従来、繊維強化樹脂を用いてインペラを製造する方法は
種々提案されている。例えば特開昭５７−６６９３９号
公報には、繊維方向を揃えてまずタービンインペラの車
翼を個々にプラスチックによって射出成形し、次いで各
単画をボス成形用金型に所定の角度で放射状に取付けた
後、ボス部を射出成形し、ボス部と車翼を一体化してタ
ービンインペラを製造する方法が記載されている。また
特開昭５７−１３５１３２号公報には、プロワインペラ
の製造方法が記載されており、この方法では第４図に示
す内部にキャビティｌｌａを有するインペラ成形用金型
１２に、多・数の小孔１３ａを放射方向に穿設したイン
サート１３を収容した後金型１２の底部に開口した射出
口１２ｂよりキャビティ１２ａ内に炭素繊維で強化した
熱可塑性プラスチックを射出してインペラを成形する。(Prior Art) Various methods of manufacturing impellers using fiber-reinforced resin have been proposed. For example, in Japanese Patent Application Laid-Open No. 57-66939, the blades of a turbine impeller are individually injection molded from plastic with the fiber directions aligned, and then each single blade is radially attached to a boss molding die at a predetermined angle. A method is described in which a turbine impeller is manufactured by injection molding the boss part and integrating the boss part and the wheel blade. Furthermore, Japanese Patent Application Laid-Open No. 57-135132 describes a method for manufacturing a professional impeller, and in this method, a large number of After housing the insert 13 with small holes 13a formed in the radial direction, thermoplastic plastic reinforced with carbon fiber is injected into the cavity 12a through an injection port 12b opened at the bottom of the mold 12 to form an impeller.
（発明が解決しようとする問題点）
しかしながら、このような従来のインペラの製造方法に
あっては、第３図に示す様なインペラの羽根形状が簡単
なものは成形できてもこのようなインペラは第１図に示
すようにハックワードがついた複雑な形状のインペラと
比較するとターボチャージャインペラとしての吸入圧縮
効率が悪いという問題があった。このために、予め形成
された脱型可能な金型構造の射出成形金型を用いること
が考えられるが、インペラの形状を出すための金型内部
部材が金型と一体化されていないため複雑な形状のイン
ペラを成形する際かけられる圧力によって金型内部部材
ががたつき、キャビティが動いてしまい、きれいな成形
体が得られず、割れたりするという問題が残されていた
。(Problems to be Solved by the Invention) However, in such a conventional impeller manufacturing method, although it is possible to mold an impeller with a simple blade shape as shown in FIG. As shown in Fig. 1, the problem was that the suction compression efficiency as a turbocharger impeller was poor compared to an impeller with a complicated shape with a hack word. For this purpose, it is possible to use an injection mold with a pre-formed and removable mold structure, but it is complicated because the internal parts of the mold to create the shape of the impeller are not integrated with the mold. When molding an impeller with a different shape, the pressure applied causes the internal parts of the mold to rattle and move the cavity, making it impossible to obtain a clean molded product and causing cracks.
（問題点を解決するための手段）
この発明は、このような従来の問題点に着目してなされ
たもので、射出成形用金型として、中子金型部がゲート
プレート、リングモールドおよびベースプレートからな
り、リングを型枠とし内側にラバーモールド法により石
膏でキャビティを型枠と一体に形成した中子金型部を備
えたものを用い、繊維強化樹脂を上記キャビティ内に射
出することにより上記問題点を解決したものである。(Means for Solving the Problems) The present invention has been made by focusing on such conventional problems, and is an injection mold in which the core mold part has a gate plate, a ring mold and a base plate. By using a ring as a formwork and equipped with a core mold part in which a cavity is integrally formed with the formwork using plaster using a rubber molding method, the fiber-reinforced resin is injected into the cavity. This solves the problem.
従ってこの発明の繊維強化樹脂製インペラの製造方法は
、固定金型部と、可動金型部と、この可動金型部内に設
けられたコアに挿入された中子金型部とから構成され、
中子金型部がゲートプレート、リングモールドおよびベ
ースプレートからなりリングを型枠とし内側に一体化さ
れた石膏により象られた部品形状のキャビティを有する
射出成形用金型を用い、この金型の上記固定金型部のノ
ズルより繊維強化樹脂を上記キャビティ内に射出するこ
とを特徴とする。Therefore, the method for manufacturing a fiber-reinforced resin impeller of the present invention comprises a fixed mold part, a movable mold part, and a core mold part inserted into a core provided in the movable mold part,
An injection mold is used in which the core mold part consists of a gate plate, a ring mold, and a base plate, and the ring is used as a formwork and has a part-shaped cavity formed by integrated plaster inside. It is characterized in that the fiber-reinforced resin is injected into the cavity from a nozzle in the fixed mold part.
この発明の方法に用いる射出成形用金型の中子金型部を
形成するリングは通常金属製或いはセラミック製とする
のが好ましい。また型枠の内側に好ましくはラバーモー
ルド法により石膏を型枠と一体化して部品形状のキャビ
ティを形成する。この際用いられる石膏はα−石膏を主
成分とするものが好ましく、乾燥耐圧強度が４５０ｋｇ
／ｃｍ２以上のものが特に好ましく用いられる。尚α−
石膏は、圧力釜で加圧、水蒸気中で１３０℃前後で焼成
することにより作られるもので、強度はβ〜石膏の３倍
以上となる。The ring forming the core mold part of the injection mold used in the method of the present invention is usually preferably made of metal or ceramic. Further, inside the mold, preferably by a rubber molding method, plaster is integrated with the mold to form a part-shaped cavity. The gypsum used at this time is preferably one whose main component is α-gypsum, and has a dry pressure resistance of 450 kg.
/cm2 or more is particularly preferably used. Furthermore α-
Gypsum is made by pressurizing it in a pressure cooker and firing it in steam at around 130°C, and its strength is β to more than three times that of gypsum.
この発明の方法によると、射出成形用金型の中子金型部
が一体として形成されているため、射出成形の際の圧力
を高く上げ、複雑な形状のインペラを容易に成形するこ
とが可能である。第１図はこの発明の方法により成形さ
れる一例のバックワードを有するインペラを示す。According to the method of this invention, since the core mold part of the injection molding mold is formed as one piece, it is possible to increase the pressure during injection molding and easily mold an impeller with a complicated shape. It is. FIG. 1 shows an example of a backward impeller formed by the method of the present invention.
以下この発明のインペラの製造方法を図面に基づいて説
明する。第２図にこの発明の方法を行うのに用いる一実
施例の金型を示す。Hereinafter, a method for manufacturing an impeller according to the present invention will be explained based on the drawings. FIG. 2 shows an embodiment of a mold used for carrying out the method of the present invention.
この金型は、断熱板１、スプルブツシュ２、ロケートリ
ング３、ヒーター４などからなる固定金型部Ａとヒータ
ー４、センターピン５、突出ピン６などからなる可動金
型部Ｂとから成り、コアＣが可動金型部Ｂ内に形成され
ており、このコアＣの中に中子金型部りが入り、その中
にキャビティ７が形成されている。This mold consists of a fixed mold part A consisting of a heat insulating plate 1, a sprue bush 2, a locate ring 3, a heater 4, etc., and a movable mold part B consisting of a heater 4, a center pin 5, a protruding pin 6, etc. C is formed in the movable mold part B, a core mold part is inserted into this core C, and a cavity 7 is formed therein.
このキャビティ７は、繊維強化樹脂を入れるための円孔
８をあけたゲートプレートａと、リングモールドｂ、及
びセンターピン５を通す孔をあけたベースプレートｃか
らなる空間に石膏により部品形状のキャビティを形成す
る形状となっている。This cavity 7 consists of a gate plate a with a circular hole 8 for inserting fiber-reinforced resin, a ring mold b, and a base plate c with a hole through which the center pin 5 is inserted. It has a shape to form.
固定金型部Ａには、キャビティ７へ樹脂材料を射出する
ためのスプール９、ランナー１０が形成されている。ス
プール９は、射出成形機のノズル１１が当接する様にな
っている。可動金型部Ｂは、中子金型部りが中にはめ込
まれている。A spool 9 and a runner 10 for injecting resin material into the cavity 7 are formed in the fixed mold part A. The spool 9 is adapted to come into contact with a nozzle 11 of an injection molding machine. The movable mold part B has a core mold part fitted therein.
第３図に示す射出成形金型を射出成形機にとりつけ、可
動金型、固定金型を閉じて、ヒーター４で金型温度を所
定温度に上げる。金型温度が所定温度になったところで
、金型を開き、オーブン中で同じ温度に加熱したゲート
プレートａとリングモールドｂをコアＣ中にセットする
。次に、射出成形機のノズル部をスプルブツシュにタッ
チさせて、例えばα型石膏体からなるキャビティ内に溶
融樹脂温度２６０℃〜４００℃の繊維強化熱可塑性樹脂
を射出圧カフ００〜１６００ｋｇ／ ｃｍ ”で射出し
成形する。しかる後、ノズルを引き、金型を開き、ゲー
トプレートａとリングモールドｂを突出しピン６により
突出させ、コアＣから取り出す。コアＣから取り出した
リングモールドｂを、放冷冷却後、金属リングから石膏
部を取り出す。しかる後、例えば、特開昭６０−８１０
２２号公報に記載されたエチレンジアミンテトラ酢酸と
無水炭酸ナトリウムの水溶液に水溶性安息香酸化合物を
少量添加して成る石膏溶解液（ｐｉ４８．２〜８．５）
の中に浸漬し、石膏を溶解し、製品を得る。The injection mold shown in FIG. 3 is mounted on an injection molding machine, the movable mold and the fixed mold are closed, and the mold temperature is raised to a predetermined temperature using the heater 4. When the mold temperature reaches a predetermined temperature, the mold is opened, and the gate plate a and ring mold b, which have been heated to the same temperature in an oven, are set in the core C. Next, touch the nozzle part of the injection molding machine to the sprue bush, and inject fiber-reinforced thermoplastic resin with a molten resin temperature of 260°C to 400°C into a cavity made of, for example, α-type gypsum at an injection pressure of 00 to 1600 kg/cm. After that, the nozzle is pulled, the mold is opened, and the gate plate a and ring mold b are made to protrude with the ejecting pin 6 and taken out from the core C. The ring mold b taken out from the core C is left to cool. After cooling, the plaster part is taken out from the metal ring.
A gypsum solution prepared by adding a small amount of a water-soluble benzoic acid compound to an aqueous solution of ethylenediaminetetraacetic acid and anhydrous sodium carbonate described in Publication No. 22 (pi48.2-8.5)
Soak it in the water to dissolve the plaster and get the product.
（実施例）
以下この発明を実施例により説明する。 ″実侮炭
−上
第３図に示す射出成形金型を射出成形機にとりつけ、可
動金型部Ｂ、固定金型部Ａを閉じて、ヒーター４で金型
温度を表１に示す温度（９０℃）にあげ、金型を開き、
オーブン中で９０℃に加熱したゲートプレートａとリン
グモールドｂをコアＣ中にｋ ットした。次に射出成形
機のノズル１１をスプルーブツシュにタッチさせて、表
２に示す５種類の石膏■〜■からなるキャビティ７内に
表１に示す３種類の樹脂■〜■を夫々表示する条件下で
射出し、成形した。しかる後、ゲートプレートａとリン
グモールドｂをコアＣから取り出した。コアＣから取り
出したリングモールドｂを、放冷冷却後、金属リングか
ら石膏部を取り出し、石膏を溶解し、第１図に示すイン
ペラを作成した。また、同時に比較のためリングを用い
なかったことを除いて同様の操作を行い、リングの有、
無による成形の可否を検討し、その結果を表２に併記す
る。(Example) The present invention will be explained below with reference to Examples. "Actual coal - Mount the injection mold shown in Figure 3 above on the injection molding machine, close the movable mold part B and fixed mold part A, and adjust the mold temperature to the temperature shown in Table 1 using the heater 4. 90℃), open the mold,
A gate plate a and a ring mold b heated to 90° C. in an oven were placed in a core C. Next, the nozzle 11 of the injection molding machine is brought into contact with the sprue bush, and the conditions are such that the three types of resins ■ to ■ shown in Table 1 are respectively displayed in the cavity 7 made of the five types of plaster ■ to ■ shown in Table 2. Injected and molded below. Thereafter, the gate plate a and the ring mold b were taken out from the core C. After the ring mold b taken out from the core C was left to cool, the plaster part was taken out from the metal ring and the plaster was melted to create an impeller shown in FIG. 1. At the same time, the same operation was performed except that the ring was not used for comparison, and the
We investigated whether or not molding could be performed without using any molding material, and the results are also listed in Table 2.
表２中成形可のものは○、成形金のものは×、成形性特
に良好なものは◎で示した。In Table 2, those that can be molded are marked with ○, those with moldable metal are marked with ×, and those with particularly good moldability are marked with ◎.
尚、上記石膏の成分および特徴は次の表３に示す通りで
ある。The components and characteristics of the above-mentioned gypsum are as shown in Table 3 below.
表１
表２の結果より、リングモールドｂの様にリングを用い
れば、石膏を用いて射出成形圧力が７００ｋｇ ／ ｃ
ｍ ｚ〜１６００ ｋｇ ／ ｃｍ ２、溶融樹脂温度
が２６０℃〜４００℃の範囲に入る強化繊維入り樹脂を
射出成形することが可能であることがわかる。更に、石
膏■、■を用いれば特に良好な成形品を得ることが可能
なことがわかる。Table 1 From the results in Table 2, if a ring is used like ring mold b, the injection molding pressure will be 700 kg/c using plaster.
It can be seen that it is possible to injection mold a reinforcing fiber-containing resin having a m z ~1600 kg/cm2 and a molten resin temperature in the range of 260°C to 400°C. Furthermore, it can be seen that especially good molded products can be obtained by using plasters (1) and (2).
実施拠−主
実施例１で用いた繊維強化樹脂１〜■および石膏■〜■
を同様に用い、射出成形条件を全く同様にし、石膏型の
温度のみ００℃へと上げた。この場合の石膏の種類と、
リングの有、無による成形可否との関係を表４に示す。Implementation Basis - Fiber reinforced resins 1 to ■ and plaster ■ to ■ used in Main Example 1
were used in the same manner, the injection molding conditions were exactly the same, and only the temperature of the plaster mold was raised to 00°C. The type of plaster in this case,
Table 4 shows the relationship between the presence and absence of a ring and the moldability.
尚、○、×、◎の意味は表２と同じである。The meanings of ○, ×, and ◎ are the same as in Table 2.
表４の結果から射出成形時の石膏型の温度を１１０℃以
上にして成形する場合であってもリングを用いた場合の
み成形肩であり、更に■の粒度分布を揃えたα−型燻焼
石膏９９％以上らなる石膏が特に良好な成形性で射出成
形可能であることがわかる。The results in Table 4 show that even if the temperature of the plaster mold during injection molding is 110°C or higher, the molding shoulder will be low only when a ring is used. It can be seen that gypsum consisting of 99% or more of gypsum can be injection molded with particularly good moldability.
これは、■の石膏中に含まれる乾燥耐圧強度を上げるた
めの樹脂が低温では石膏の収縮を抑えるのに役立ってい
るが９０℃を越えると、悪い方に影響を及ぼし収縮をは
じめる。この収縮によりリングと一体で形成されていた
石膏が、リングから全周に渡り少し剥離（数μ）するこ
とにより、わずかにクリアランスが生ずる。この状態の
リングモールドｂをコアＣ中にセ−／ トし射出成形を
行うと、石膏に割れが生ずる場合がある。これに対し、
小粒度に粒度分布を揃えたα−型燻焼石膏みからなる石
膏では１１５°Ｃまでの範囲で■の石膏の様な収縮はお
こらない。さらに、樹脂の射出成形の様に、石膏が短時
間（６０秒以内）の間だけ高圧高温にさらされるのであ
れば、石膏に要求される耐熱温度は１００℃前後であれ
ば十分と考えられる。また、射出成形後の成形品を石膏
の中から取り出す際に石膏溶解液中に浸漬し、石膏を溶
かして取り出す。This is because the resin contained in the gypsum (2), which increases the dry compressive strength, helps to suppress the shrinkage of the gypsum at low temperatures, but when the temperature exceeds 90°C, it has a negative effect and begins to shrink. Due to this contraction, the plaster that was integrally formed with the ring peels off a little (several microns) from the ring around the entire circumference, creating a slight clearance. If ring mold b in this state is placed in core C and injection molded, cracks may occur in the plaster. On the other hand,
Gypsum made of α-type smoked gypsum with a uniform particle size distribution does not shrink like the gypsum shown in (2) in the temperature range up to 115°C. Furthermore, if gypsum is exposed to high pressure and high temperature for only a short period of time (within 60 seconds), such as during resin injection molding, it is considered that a heat resistance temperature of around 100° C. is sufficient for gypsum. Moreover, when taking out the molded article from the plaster after injection molding, it is immersed in a plaster solution to dissolve the plaster and taken out.
この場合、石膏溶解液はα−型燻焼石膏極めて良く溶解
するが、樹脂の入ったα−型燻焼石膏熔解しにくいとい
う現象がある。そこで、リングモールドｂに用いる石膏
としては石膏温度を１１５°Ｃまで上げられ、成形品表
面の仕上りを美麗にできることと、溶解液で簡単に溶解
できるということから、小粒度に粒度分布を揃えたα型
焼石膏９９Ｎ以上からなり、乾燥耐圧強度が４５０ｋｇ
／ｃｍ２以上であるものが最適である。In this case, the gypsum solution dissolves α-type smoked gypsum extremely well, but it is difficult to dissolve α-type smoked gypsum containing resin. Therefore, for the gypsum used in ring mold b, the particle size distribution was adjusted to a small particle size because the gypsum temperature could be raised to 115°C, the surface of the molded product could be beautifully finished, and it could be easily dissolved with a dissolving solution. Made of α-type calcined gypsum of 99N or more, with a dry pressure resistance of 450kg.
/cm2 or more is optimal.
（発明の効果）
以上説明してきたように、この発明は、中子金型部りを
有する射出成形用金型において、咳中子金型部を形成す
るリングモールドｂに、好ましくは乾燥耐圧強度が４５
０ ｋｇ ／ Ｃｍ ”以上であるα−石膏を用いたラ
バーモールド法で、部品形状を転写したキャビティを一
体に形成したものを用いて繊維強化樹脂を射出し、イン
ペラを成形する構成としたため、ハックワードがついた
複雑形状の繊維強化樹脂製インペラを成形することがで
き、ターボチャージャとしての吸入圧縮効率を向上させ
ることができるという効果が得られる。(Effects of the Invention) As explained above, in an injection mold having a core mold part, the ring mold b forming the core mold part preferably has a dry pressure resistance. is 45
The impeller is molded by injecting fiber-reinforced resin using a rubber molding method using α-gypsum with a particle size of 0 kg/cm or more, which has an integrally formed cavity in which the shape of the part has been transferred. It is possible to mold a fiber-reinforced resin impeller with a complex shape with words, and the effect of improving the suction compression efficiency as a turbocharger can be obtained.
第１図はこの発明の方法で成形される一例インペラの側
面図、
第２図は、この発明の方法に用いる金型の断面図、
第３図は、従来法により成形されたインペラの斜視図、
第４図は、特開昭５７−１３５１３２号公報に記載され
たプロワインペラの製造方法に用いるインペラ成形金型
にインサートをセットした状態の断面図である。
１・・・断熱板 ２・・・スプループッシュ
３・・・ロケートリング ４・・・ヒーター５・・・
センタービン ６・・・突出ビン７・・・キャビテ
ィ ８・・・円孔９・・・スプルー １
０・・・ランナー１１・・・ノズル
１２・・・プロワインペラ成型金型
１３・・・インサート
Ａ・・・固定金型部 Ｂ・・・可動金型部Ｃ・・
・コア Ｄ・・・中子金型ａ・・・ゲート
プレート ｂ・・・リングモールドＣ・・・ベースプ
レート
特許出願人 日産自動車株式会社
第１図
２ｂFigure 1 is a side view of an example impeller molded by the method of the present invention, Figure 2 is a sectional view of a mold used in the method of the present invention, and Figure 3 is a perspective view of an impeller molded by the conventional method. FIG. 4 is a cross-sectional view of an insert set in an impeller mold used in the method for manufacturing a professional wine propeller described in Japanese Patent Application Laid-open No. 57-135132. 1... Heat insulation plate 2... Spruce pusher 3... Locate ring 4... Heater 5...
Center bin 6...Protruding bin 7...Cavity 8...Circular hole 9...Sprue 1
0... Runner 11... Nozzle 12... Pro wine propeller mold 13... Insert A... Fixed mold part B... Movable mold part C...
・Core D... Core mold a... Gate plate b... Ring mold C... Base plate Patent applicant Nissan Motor Co., Ltd. Figure 1 2b
Claims (1)
動金型部内に設けられたコア（Ｃ〉に挿入された中子金
型部（Ｄ）とから構成され、中子金型部（Ｄ）がゲート
プレート（ａ）、リングモールド（ｂ）およびベースプ
レート（ｃ）からなりリングを型枠とし内側に一体化さ
れた石膏により象られた部品形状のキャビティを有する
射出成形用金型を用い、この金型の上記固定金型部（Ａ
）のノズルより繊維強化樹脂を上記キャビティ内に射出
することを特徴とする繊維強化樹脂製インペラの製造方
法。1. Consisting of a fixed mold part (A), a movable mold part (B), and a core mold part (D) inserted into a core (C>) provided in the movable mold part, An injection mold in which the core mold part (D) consists of a gate plate (a), a ring mold (b), and a base plate (c), and has a cavity in the shape of a component shaped by plaster integrated inside using the ring as a formwork. Using a mold for molding, the fixed mold part (A
) A method for manufacturing a fiber-reinforced resin impeller, comprising injecting fiber-reinforced resin into the cavity from a nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61122878A JPS62279913A (en) | 1986-05-28 | 1986-05-28 | Manufacture of impeller made of fiber reinforced resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61122878A JPS62279913A (en) | 1986-05-28 | 1986-05-28 | Manufacture of impeller made of fiber reinforced resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62279913A true JPS62279913A (en) | 1987-12-04 |
Family
ID=14846871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61122878A Pending JPS62279913A (en) | 1986-05-28 | 1986-05-28 | Manufacture of impeller made of fiber reinforced resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62279913A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6025072A (en) * | 1987-11-30 | 2000-02-15 | Mitsui Chemicals, Inc. | Heat-resistant resin compositions and internal combustion engine parts using same |
| JP2013527046A (en) * | 2009-11-23 | 2013-06-27 | ヌオーヴォ ピニォーネ ソシエタ ペル アチオニ | Centrifugal impeller mold, mold insert, and method for constructing centrifugal impeller |
| CN105172014A (en) * | 2015-09-17 | 2015-12-23 | 宜兴市宙斯泵业有限公司 | Molding mold for high-distortion closed type or semi-open type plastic impeller |
| US9797255B2 (en) | 2011-12-14 | 2017-10-24 | Nuovo Pignone S.P.A. | Rotary machine including a machine rotor with a composite impeller portion and a metal shaft portion |
| US9810230B2 (en) | 2009-05-08 | 2017-11-07 | Nuovo Pignone Srl | Impeller for a turbomachine and method for attaching a shroud to an impeller |
| US9816518B2 (en) | 2009-11-23 | 2017-11-14 | Massimo Giannozzi | Centrifugal impeller and turbomachine |
| US11162505B2 (en) | 2013-12-17 | 2021-11-02 | Nuovo Pignone Srl | Impeller with protection elements and centrifugal compressor |
-
1986
- 1986-05-28 JP JP61122878A patent/JPS62279913A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6025072A (en) * | 1987-11-30 | 2000-02-15 | Mitsui Chemicals, Inc. | Heat-resistant resin compositions and internal combustion engine parts using same |
| US9810230B2 (en) | 2009-05-08 | 2017-11-07 | Nuovo Pignone Srl | Impeller for a turbomachine and method for attaching a shroud to an impeller |
| JP2013527046A (en) * | 2009-11-23 | 2013-06-27 | ヌオーヴォ ピニォーネ ソシエタ ペル アチオニ | Centrifugal impeller mold, mold insert, and method for constructing centrifugal impeller |
| US9810235B2 (en) | 2009-11-23 | 2017-11-07 | Massimo Giannozzi | Mold for a centrifugal impeller, mold inserts and method for building a centrifugal impeller |
| US9816518B2 (en) | 2009-11-23 | 2017-11-14 | Massimo Giannozzi | Centrifugal impeller and turbomachine |
| US9797255B2 (en) | 2011-12-14 | 2017-10-24 | Nuovo Pignone S.P.A. | Rotary machine including a machine rotor with a composite impeller portion and a metal shaft portion |
| US11162505B2 (en) | 2013-12-17 | 2021-11-02 | Nuovo Pignone Srl | Impeller with protection elements and centrifugal compressor |
| CN105172014A (en) * | 2015-09-17 | 2015-12-23 | 宜兴市宙斯泵业有限公司 | Molding mold for high-distortion closed type or semi-open type plastic impeller |
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