JP4725813B2 - 樹脂成形品 - Google Patents
樹脂成形品 Download PDFInfo
- Publication number
- JP4725813B2 JP4725813B2 JP2008260599A JP2008260599A JP4725813B2 JP 4725813 B2 JP4725813 B2 JP 4725813B2 JP 2008260599 A JP2008260599 A JP 2008260599A JP 2008260599 A JP2008260599 A JP 2008260599A JP 4725813 B2 JP4725813 B2 JP 4725813B2
- Authority
- JP
- Japan
- Prior art keywords
- laser light
- resin member
- laser
- hue
- light transmitting
- 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.)
- Active
Links
- 229920005989 resin Polymers 0.000 claims abstract description 138
- 239000011347 resin Substances 0.000 claims abstract description 138
- 238000003466 welding Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 claims description 3
- 229920006122 polyamide resin Polymers 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000010926 purge Methods 0.000 description 34
- 206010027146 Melanoderma Diseases 0.000 description 20
- 239000000446 fuel Substances 0.000 description 12
- 229920002647 polyamide Polymers 0.000 description 12
- 239000003086 colorant Substances 0.000 description 11
- 239000012535 impurity Substances 0.000 description 11
- 238000002845 discoloration Methods 0.000 description 10
- 230000004907 flux Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000002950 deficient Effects 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
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- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1619—Mid infrared radiation [MIR], e.g. by CO or CO2 lasers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/01—General aspects dealing with the joint area or with the area to be joined
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- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
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- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
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- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
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- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/97—Checking completion of joining or correct joining by using indications on at least one of the joined parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/10—Welded housings
- F16K27/102—Welded housings for lift-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
- F16K31/0658—Armature and valve member being one single element
-
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
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- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/82—Testing the joint
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- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
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- B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
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- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2081/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
- B29K2081/04—Polysulfides, e.g. PPS, i.e. polyphenylene sulfide or derivatives thereof
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- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Description
レーザ光吸収性樹脂部材は、所定の波長のレーザ光を吸収可能であり、レーザ光透過性樹脂部材のレーザ溶着される部位に当接する当接面を有し、レーザ光透過性樹脂部材を透過したレーザ光を吸収して発熱することにより、前記当接面においてレーザ光透過性樹脂部材と溶着する。
請求項2記載の発明では、レーザ光透過性樹脂部材は、レーザ光吸収性樹脂部材との当接面においてレーザ光吸収性樹脂部材に気密または液密に溶着している。また、レーザ光透過性樹脂部材は、レーザ光吸収性樹脂部材との間に、所定の容積をもつ容積室を形成している。本発明では、レーザ光透過性樹脂部材とレーザ光吸収性樹脂部材とをレーザ溶着した後の溶着状態について、十分に溶着がなされたか否かを容易に判断することができる。これにより、レーザ光透過性樹脂部材とレーザ光吸収性樹脂部材とが十分に、かつ、気密または液密に溶着された樹脂成形品のみを製品等とすることが容易となる。したがって、樹脂成形品に形成される容積室に対し高い気密性または液密性が要求される場合であっても、この要求を満足することができる。
(一実施形態)
本発明の一実施形態によるレーザ透過性樹脂部材を出口通路キャップとして、樹脂成形品としてのパージバルブに適用したものを図1に示す。
図2に示すように、自動車には、燃料タンク3で気化した燃料を吸着して保持するキャニスタ4が設けられている。このキャニスタ4は、大気導入通路5を介して大気を導入可能に設けられている。また、キャニスタ4は、パージ通路6を介して吸気管7の負圧発生部分となるスロットルバルブ8の下流に接続されている。そして、エンジンの運転中に、大気導入通路5に設けられた弁9を開いて、外部からフィルタ11を通してキャニスタ4内に空気を導入するとともに、パージ通路6に設けられたパージバルブ1を開いて、キャニスタ4内に保持された気化燃料をフィルタ10を通して吸気管7へ導く。
パージバルブ1は、パージ通路6の吸気管側に接続される流出ポート13が形成された出口通路キャップ12と、流出ポート13に通じる弁口14を開閉する弁体15と、パージ通路6のキャニスタ4側に接続される流入ポート17が形成されるハウジング16に覆われて弁体15を駆動して弁口14を開閉させる電磁アクチュエータ2等からなる。
電磁アクチュエータ2は、弁体15が取り付けられたムービングコア22の他に、このムービングコア22を弁体15が弁口14に着座する方向に付勢するリターンスプリング23と、このリターンスプリング23の付勢力に抗してムービングコア22を開弁方向へ磁気吸引するソレノイド24とを備える。
リターンスプリング23は、ムービングコア22を閉弁方向へ付勢する圧縮コイルスプリングであり、一端がムービングコア22に当接し、他端がムービングコア22内に設けられたスプリング保持部27に当接する。
ソレノイド24は、コイル25、ヨーク29、固定子としてのステータ30を備え、コネクタ20によって通電制御されるものであり、これらはソレノイド24のハウジング16を成す二次成形によって樹脂モールドされている。
ヨーク29は、例えば鉄などの磁性体金属からなる。ヨーク29は、カップ状に形成された部材の側壁のうち対向する部位を切り欠いた略コ字状に形成されている。ヨーク29は、側壁がコイル25の外周側に位置するように設けられている。ヨーク29は、側壁が磁性リング31を介してステータ30の上部に接続し、下部すなわち底壁がステータ30の下部に接続している。
コネクタ20は、パージバルブ1を開閉制御する図示しない電子制御装置と接続線を介して電気的な接続を行う接続手段であり、その内部には、コイル25の両端にそれぞれ接続されるコネクタ端子21が配置されている。このコネクタ端子21は、ハウジング16を成す二次成形により樹脂モールドされ、一端がボビンに差し込まれ、他端がコネクタ20内で露出する。
出口通路キャップ12は、例えば熱可塑性を有するポリアミド系の樹脂により形成されている。出口通路キャップ12は、図1に示すように、略円筒状の流出ポート13から径外方向へ板状に拡がる蓋部121を有している。蓋部121の外縁部は、ハウジング16にレーザ溶着される部位である溶着部122として形成されている。溶着部122は、厚みがtとなるように形成されている。本実施形態では、tは2.5(mm)に設定されている。また、溶着部122は、ハウジング16に当接する当接面123を有している。
図3では、マンセル表色系における色相環を、便宜上、無彩色で示している。また、図3では、色相環を100分割し色相10RPを「0」または「100」とした場合の色相(H)の値を示している。例えば、この場合、色相(H)10、20、30、40、50、60、70、80、90は、それぞれ、マンセル表色系での色相10R、10YR、10Y、10GY、10G、10BG、10B、10PB、10Pに対応している。
図5は、色相(H)を横軸に、彩度(C)を縦軸にとり、HとCとの関係を示す複数の関係式「C≦−0.075H2+1.936H+1.267、C≧2」によって囲まれた範囲(格子状の破線で網掛けした範囲)により、出口通路キャップ12が着色され得る色の範囲を示したものである。
V≦0.229×10+3.714、V≦−0.8×10+24、V≧3、
および、
C≦−0.075×102+1.936×10+1.267、C≧2
から、
出口通路キャップ12が着色され得る色は、H(色相)=10で、3≦V(明度)≦6.004、かつ、2≦C(彩度)≦13.127の範囲内の色であることがわかる。この範囲は、図6において一点鎖線で囲んだ範囲で示される。よって、出口通路キャップ12は、色相10R(色相(H)10)の等色相カラーチャートにおいては、図6の一点鎖線で囲んだ範囲内のブロック(格子状の破線で網掛けしたブロック)に対応する色で着色され得る。これらのブロックの色は、実際の等色相カラーチャートでは、視覚上、茶色として示されるものである。
また、出口通路キャップ12の色が上記関係を満たす色であるか否かは、出口通路キャップ12が可視光線(例えばCIE/ISOの基準光(色温度6504K))で照らされている状態等、所定の条件の下で、色彩計または分光測色計等によって、出口通路キャップ12の色を測定することにより判断することができる。なお、物体の色はある光源からの光の反射を測定等することにより識別されるものなので、上記所定の条件としては、例えば太陽光あるいは屋内の蛍光灯または白熱灯等で照らされた状態も想定される。
図7(A)に示すように、出口通路キャップ12とハウジング16とをレーザ溶着するにあたって、まず、出口通路キャップ12の当接面123とハウジング16の当接面163とを当接させる。続いて、加圧手段100により出口通路キャップ12の溶着部122に所定の圧力Fを加え、当接面123と当接面163とを密着させる。この状態で、溶着部122の反当接面123側からレーザ光を照射する。これにより、レーザ光は、溶着部122を透過し、ハウジング16の溶着部162(当接面163)に吸収される。溶着部162は、当接面163でレーザ光を吸収すると発熱する。この発熱により、溶着部162および溶着部122は、当接面163(当接面123)において溶融し、互いの溶融した樹脂が混合することによって溶融プールp1(図7(A)に格子状の網掛けで示した箇所)を形成する。ここで、レーザ光の照射を停止する、あるいはレーザ光の照射位置をずらすと、溶着部162および溶着部122の溶融した箇所(溶融プールp1)は、温度が下がり固化する。これにより、溶着部122と溶着部162とは、溶融プールp1において溶着される。このようにして、レーザ光の照射を蓋部121の外縁部の全周(溶着部122)に亘って施すことにより、出口通路キャップ12とハウジング16とは、気密または液密に溶着されて接合する。
電子制御装置により、電磁アクチュエータ2のコイル25に通電され、パージバルブがオンされると、コイル25に磁束が発生する。この磁束は、磁性リング31、収容部32、磁気絞り部33、ムービングコア22、吸引部34、ヨーク29によって構成された磁気回路に流れ、磁束ループを形成する。収容部32の磁性リング31側から吸引部34側へ流れる磁束は、磁気絞り部33の肉厚が薄く磁路面積が小さいことより圧縮され、抵抗が大きくなる。
なお、パージバルブ1は上述のように作動するため、気化燃料が流通するチャンバ18には高い気密性が要求される。
本実施形態のようなパージバルブは、その製品としての用途から、内部空間(容積室)に高い気密性が要求される。本実施形態では、出口通路キャップ12は、レーザ光透過性樹脂部材として使用され、ハウジング16にレーザ溶着されている。これにより、出口通路キャップ12は、ハウジング16との間に容積室としてのチャンバ18を形成している。出口通路キャップ12は、上述した特徴を有するため、ハウジング16にレーザ溶着された後の溶着状態について、十分に溶着がなされたか否かを容易に判断することができる。これにより、出口通路キャップ12とハウジング16とが十分かつ気密に溶着されたパージバルブ1のみを製品等とすることが容易となる。したがって、パージバルブ1に形成されるチャンバ18に対し高い気密性が要求される場合であっても、この要求を満足することができる。
本発明の他の実施形態では、レーザ光透過性樹脂部材としての出口通路キャップは、ポリアミド系の樹脂ではなく、例えばPET、PBT等のポリエステル系樹脂、あるいはポリフェニレンサルファイド樹脂(PPS)等の熱可塑性を有する樹脂により形成されていてもよい。本発明では出口通路キャップが初期状態において茶系の色で着色されていることから、上で挙げた樹脂により出口通路キャップが形成され、経年後に変色しても、この変色を隠蔽することができる。
また、出口通路キャップは、樹脂に着色剤を含有させて成形することにより着色するのではなく、表面に着色剤を塗布することにより着色してもよい。このように出口通路キャップの表面にのみ着色したとしても、本発明によれば、出口通路キャップは見栄えが良く、経年後の変色を隠蔽する効果も期待できる。また、レーザ溶着により出口通路キャップの表面あるいは内部に黒点が生じたとしても、この黒点を容易に発見することができる。
Claims (4)
- マンセル表色系において、明度をV、彩度をC、色相環を100分割し色相10RPを「0」または「100」とした場合の色相をHとしたとき、「0≦H≦25」、「V≦0.229H+3.714、V≦−0.8H+24、V≧3」、かつ、「C≦−0.075H2+1.936H+1.267、C≧2」の関係を満たす色を呈するように着色され、レーザ溶着される部位が、波長800nm以上のレーザ光を照射したときの透過率が15%以上となるように形成されている、レーザ溶着用のレーザ光透過性樹脂部材と、
所定の波長のレーザ光を吸収可能であり、前記レーザ光透過性樹脂部材の前記レーザ溶着される部位に当接する当接面を有し、前記レーザ光透過性樹脂部材を透過したレーザ光を吸収して発熱することにより、前記当接面において前記レーザ光透過性樹脂部材と溶着するレーザ光吸収性樹脂部材と、
を備える樹脂成形品。 - 前記レーザ光透過性樹脂部材は、前記レーザ光吸収性樹脂部材の前記当接面に気密または液密に溶着し、所定の容積をもつ容積室を前記レーザ光吸収性樹脂部材との間に形成していることを特徴とする請求項1記載の樹脂成形品。
- 前記レーザ光透過性樹脂部材は、ポリアミド系樹脂により形成されていることを特徴とする請求項1または2記載の樹脂成形品。
- 前記レーザ溶着される部位は、厚みが2.5mm以下であることを特徴とする請求項1〜3のいずれか一項記載の樹脂成形品。
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JP2008266434A (ja) * | 2007-04-19 | 2008-11-06 | Mitsubishi Engineering Plastics Corp | 黒色のレーザー溶着用ポリアミド樹脂組成物およびこれを用いた成形品 |
JP2009288499A (ja) * | 2008-05-29 | 2009-12-10 | Seiko Epson Corp | 電気泳動表示装置及び電気泳動表示装置の製造方法 |
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JP2008087373A (ja) * | 2006-10-03 | 2008-04-17 | Canon Finetech Inc | インクジェットヘッドおよび該ヘッドの製造方法 |
JP2008133341A (ja) * | 2006-11-28 | 2008-06-12 | Mitsubishi Engineering Plastics Corp | 黒色のレーザー溶着用ポリエステル樹脂組成物およびこれを用いた成形品 |
JP2008266434A (ja) * | 2007-04-19 | 2008-11-06 | Mitsubishi Engineering Plastics Corp | 黒色のレーザー溶着用ポリアミド樹脂組成物およびこれを用いた成形品 |
JP2009288499A (ja) * | 2008-05-29 | 2009-12-10 | Seiko Epson Corp | 電気泳動表示装置及び電気泳動表示装置の製造方法 |
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