JP2003118006A - Method for fixing metal boss to thermoplastic resin molding - Google Patents
Method for fixing metal boss to thermoplastic resin moldingInfo
- Publication number
- JP2003118006A JP2003118006A JP2001312137A JP2001312137A JP2003118006A JP 2003118006 A JP2003118006 A JP 2003118006A JP 2001312137 A JP2001312137 A JP 2001312137A JP 2001312137 A JP2001312137 A JP 2001312137A JP 2003118006 A JP2003118006 A JP 2003118006A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- thermoplastic resin
- molding
- hole
- boss
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 90
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000000465 moulding Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229920006122 polyamide resin Polymers 0.000 description 19
- 238000012545 processing Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000357297 Atypichthys strigatus Species 0.000 description 1
- 102100024522 Bladder cancer-associated protein Human genes 0.000 description 1
- 101150110835 Blcap gene Proteins 0.000 description 1
- 101100493740 Oryza sativa subsp. japonica BC10 gene Proteins 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/522—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by spraying, e.g. by flame spraying
-
- 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
- B29C65/44—Joining a heated non plastics element to a plastics element
- B29C65/46—Joining a heated non plastics element to a plastics element heated by induction
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
- B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
- B29C66/30321—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions belonging to at least one of the parts to be joined
- B29C66/30322—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions belonging to at least one of the parts to be joined in the form of rugosity
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- 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
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- 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
- B29C66/545—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 one hollow-preform being placed inside the other
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—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
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
- B29C66/02245—Abrading, e.g. grinding, sanding, sandblasting or scraping
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—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
- B29C66/71—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 composition of the plastics material of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
- B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、熱可塑性樹脂成形
物に金属ボスを固定する方法に関し、詳しくは、歯車や
車輪等のような偏平な形状に形成された熱可塑性樹脂成
形物の中心に金属ボスを嵌着して固定する方法に関す
る。
【０００２】
【従来の技術】各種機械部品に使用する歯車や車輪等と
して、熱可塑性樹脂被覆金属成形品、例えば、ポリアミ
ド樹脂製歯車の中心軸受け部に金属ボスを嵌着固定した
ものなどが多く用いられている。このような熱可塑性樹
脂被覆金属成形品は、例えば特公昭５８−２２３３６号
公報に記載された方法によって製造されている。
【０００３】
【発明が解決しようとする課題】しかし、従来の方法で
は、厚さ（幅）が小さい偏平な歯車や車輪を製造する場
合、製品幅の数倍以上の長さを有する筒状に成形したポ
リアミド樹脂成形物と、該ポリアミド樹脂成形物の長さ
寸法以上に成形した金属成形物とを組み付けて一体化し
た後、この一体化品を輪切りにして所定厚さの熱可塑性
樹脂被覆金属成形品を得るようにしていた。ところが、
金属ボスに軸方向の突出部があったり、金属ボスが円錐
形状やカップ形状のものであったりした場合は、一体化
品を輪切りにした後で、ポリアミド樹脂や金属を切削加
工して所定形状に仕上げる作業が必要であり、この際に
切削された屑は、再利用が可能ではあるものの、ポリア
ミド樹脂成形物や金属成形物の使用効率、即ち歩留まり
が低く、生産性に大きな問題があった。
【０００４】そこで本発明は、厚さ（幅）が小さい偏平
な歯車や車輪のような樹脂と金属とからなる成形品を効
率よく製造することができ、金属ボスが複雑な形状の場
合にも対応できる熱可塑性樹脂成形物に金属ボスを固定
する方法を提供することを目的としている。
【０００５】
【課題を解決するための手段】上記目的を達成するた
め、本発明の熱可塑性樹脂成形物に金属ボスを固定する
方法は、通孔を有するリング状に形成した熱可塑性樹脂
成形物の前記通孔内に金属ボスを圧入して固定する方法
であって、最終成形品の金属ボスの形状に対応した形状
の金属成形体を成形する工程と、該金属成形体の樹脂接
触面に凹凸加工を施す工程と、該凹凸加工面に結合材を
塗布する工程と、外面形状を最終成形品の熱可塑性樹脂
成形物の外面形状に対応した形状とし、かつ、通孔の直
径を前記金属成形体の外径に対して僅かに小径とした熱
可塑性樹脂成形体を形成する工程と、該熱可塑性樹脂成
形体を加熱して通孔の直径を金属成形体の外径に対応し
た直径になるように膨張させる工程と、該加熱膨張した
熱可塑性樹脂成形体の通孔内に前記金属成形体を圧入す
る工程と、金属成形体を圧入した熱可塑性樹脂成形体の
金属部分を高周波電磁誘導によって加熱し、熱可塑性樹
脂成形体の金属接触部分を選択的に溶融温度以上に加熱
する工程とを含むことを特徴としている。
【０００６】
【発明の実施の形態】図１は、本発明の熱可塑性樹脂成
形物に金属ボスを固定する方法の一形態例を示す概略工
程図であって、図２の斜視図に示すように、リング状の
熱可塑性樹脂、例えばリング状に形成したポリアミド樹
脂成形物１０の通孔１１内に金属ボス２０を嵌着固定し
た車輪あるいは歯車素材となる成形品３０を製造する手
順を示している。
【０００７】図１において、工程１〜３は金属ボス２０
の前処理手順、工程４〜６はポリアミド樹脂成形物１０
の前処理手順を表している。まず、工程１は、最終成形
品の金属ボス２０の形状に対応した形状の金属成形体２
１を成形する工程である。この金属成形体２１の成形
は、任意の成形方法を採用できるが、熱間鍛造によって
成形することが好ましい。この熱間鍛造は、単に金属を
所定形状に成形するというだけではなく、合金成分の均
一化、鍛錬による強度向上の効果も期待できる。但し、
高温・高圧での加工であることから、精度の点では冷間
鍛造に比べて劣るため、成形後に表面仕上げを行う必要
があり、金属ボスとして要求される内径仕上げや、ポリ
アミド樹脂成形物との固定強度に影響がでる外径仕上げ
を行うようにする。
【０００８】工程２は、工程１で成形した金属成形体２
１の樹脂接触面、本形態例では外周面に凹凸２２を施す
工程である。この凹凸加工により形成される凹凸２２
は、成形品３０においてポリアミド樹脂成形物１０と金
属ボス２０との固定強度を向上させるためのものであっ
て、周方向、軸線方向等の任意の凹凸を形成することが
できるが、通常は、網目状の凹凸からなるローレット加
工を施すことが好ましい。凹凸２２の程度は、１〜３ｍ
ｍが適当であり、小さすぎると強度向上効果がほとんど
ない。さらに、凹凸加工を施した後、凹凸加工面にサン
ドブラスト処理を行って粗面化しておくことにより、前
記固定強度を更に向上させることができる。
【０００９】工程３は、工程２で凹凸２２を形成した凹
凸加工面に熱可塑性樹脂との結合力を高めるための結合
材２３を塗布する工程である。結合材としては、熱可塑
性樹脂と金属との結合力を高めることができるものなら
ば任意のものを使用することができるが、シランカップ
リング剤が好適に使用できる。結合材２３の塗布方法は
任意であるが、できるだけ薄く塗ることが好ましいた
め、図１に示すように、金属成形体２１を適当な速度で
回転させながらノズル２４から結合材２３を噴霧する方
法が最適である。
【００１０】一方、工程４及び工程５は、最終成形品３
０のポリアミド樹脂成形物１０となる熱可塑性樹脂（ポ
リアミド樹脂）成形体１２を成形する工程である。本形
態例では、所定形状の円筒状長尺物を成形した後、所定
厚さに切断することによって所定形状の樹脂成形体１２
を得るようにしている。すなわち、工程４において、ポ
リアミド樹脂成形物１０の外径に対応した外径を有し、
前記金属成形体２１の外径よりも僅かに小さな内径を有
する筒状体１３を押出成形法や射出成形法、モノマーキ
ャスティング（ＭＣ）法等の任意の成形方法で適当な長
さに成形した後、工程５において、ポリアミド樹脂成形
物１０の厚さに対応した寸法で切断（スライス）するこ
とにより、外面形状が最終成形品のポリアミド樹脂成形
物１０の外面形状に対応した形状で、かつ、前記金属成
形体２１の外径に対して僅かに小さな直径の通孔１１を
有する樹脂成形体１２が形成される。
【００１１】このとき、筒状体１３の状態あるいは樹脂
成形体１２とした状態で、表面仕上げや内径仕上げを行
うようにして所定寸法にすることが好ましい。また、通
孔１１の直径は、金属成形体２１の外径に対して０．４
〜３％小さくすればよく、樹脂の種類や全体の大きさな
どに応じて適当に設定することができるが、０．４％未
満だと結合力が不十分になるときがあり、３％を超える
と後工程での圧入操作が困難になるとともに、残留応力
が大きくなって歯車等に加工するときにひび割れが発生
しやすくなる。
【００１２】工程６は、金属成形体２１を嵌着するため
に樹脂成形体１２を加熱膨張させる工程である。この加
熱工程では、加熱炉１４等で樹脂成形体１２を加熱する
ことによって通孔１１の直径を金属成形体２１の外径に
対応した直径になるように膨張させ、通孔１１内への金
属成形体２１の圧入操作を軽い力で行えるようにする。
加熱温度は、金属成形体２１の外径に対する通孔１１の
内径、熱可塑性樹脂の種類、軟化点や膨張率によって適
当に決定することができ、ポリアミド樹脂の場合は、１
３０〜１５０℃程度、例えば１４０℃に加熱すればよ
い。このとき、加熱温度を高くし過ぎると樹脂が軟化し
て寸法精度に悪影響がでるおそれがあり、加熱温度が低
すぎると十分に膨張させることができず、十分な圧入力
低減効果が得られなくなる。
【００１３】工程７は、前記工程３で結合材２３を塗布
した金属成形体２１を、前記工程６で加熱膨張させたポ
リアミド樹脂成形体１２の通孔１１内に圧入する工程で
ある。この圧入工程では、適当な治具１５，２５を使用
して平行度や芯合わせを行った後、プレス機等の加圧機
１６を用いて軸線方向に加圧し、ポリアミド樹脂成形体
１２の通孔１１内に金属成形体２１を圧入する。これに
より、ポリアミド樹脂成形体１２に金属成形体２１を圧
入して一体化した予備成形体３１が得られる。
【００１４】工程８は、予備成形体３１の金属成形体外
周部を電磁誘導により加熱し、ポリアミド樹脂成形体１
２の金属接触部分、即ち通孔１１の内周面部分を溶融温
度以上に加熱する高周波加熱工程である。この工程で
は、加熱コイル１７内で予備成形体３１を適当な治具で
保持した状態で回転させることにより、通孔１１の内周
面部分を均一的に溶融温度以上に加熱し、金属成形体２
１の外周に形成した凹凸加工面に溶融樹脂をなじませて
密着させる。例えば、加熱コイル１７に１０〜２０ｋＨ
ｚの高周波電流を流すことによって金属成形体２１が誘
導加熱され、該金属成形体２１の近傍の樹脂、通孔１１
の内周面部分の樹脂が加熱されて溶融する。
【００１５】図３は、高周波加熱工程で予備成形体３１
を保持しながら回転させる保持治具の一例を示す一部断
面正面図である。この保持治具は、予備成形体３１の下
部を保持する下部保持治具４１と、予備成形体３１の上
部を保持する上部保持治具４２とを有するものであっ
て、両治具４１，４２は、共に上下動可能かつ回転可能
に形成されている。
【００１６】下部保持治具４１は、金属製回転台４３
と、この金属製回転台４３の上面に装着されたセラミッ
ク製の予備成形体載置具４４とにより形成されている。
また、上部保持治具４２は、金属製センター部材４５
と、この金属製センター部材４５の下端に装着されたセ
ラミック製のセンターキャップ４６とにより形成されて
いる。金属製回転台４３と金属製センター部材４５とに
は、その内部に冷却水を通水する経路が設けられてお
り、繰り返し加熱による保持治具の昇温・蓄熱を抑え、
伝熱によって予備成形体３１の加熱温度が変化し、固定
強度が低下することを防止している予備成形体３１は、
適当な搬送手段で予備成形体載置具４４の上面に載置さ
れた後、上部保持治具４２が下降してセンターキャップ
４６の先端円錐面４７が予備成形体３１の金属成形体２
１中心に設けられている軸挿通孔２６内に進入すること
によって軸合わせが行われ、加熱コイル１６の中心に予
備成形体３１が保持された状態になる。これにより、金
属成形体２１の誘導加熱、樹脂成形体１２の通孔１１部
分の加熱溶融を均一にかつ確実に行うことができる。
【００１７】このように、あらかじめ最終成形品３０の
樹脂成形物１０及び金属ボス２０の形状に対応した形状
に形成した金属成形体２１及び樹脂成形体１２を使用し
て樹脂成形体１２の通孔１１内に金属成形体２１を圧入
することにより、金属ボス２０に突出部等がある場合で
も、歩留まりを低下させることなく、効率よく製造する
ことができる。
【００１８】例えば、図４の断面図に示すように、リン
グ状の樹脂成形物５１にカップ型の金属ボス５２を圧入
した成形品５３を製造する場合、従来のように、長尺物
を製造してから輪切りにした後に切削加工を行う場合
は、図４の想像線で示す大きさの予備成形体５４を製造
した後、実線部分を残してその他の部分を旋盤等で切削
除去しなければならないので、この加工に長時間を要す
るとともに、原料の歩留まりも大きく低下する。一方、
前記形態例で示した手順で同形状の成形品５３を製造す
る場合は、樹脂成形物５１及び金属ボス５２を図４に示
す形状に成形して両者を嵌合固着すればいいので、旋盤
等による加工は、表面の仕上げ加工程度で済むため、加
工時間の大幅な短縮が図れ、切削除去する量も少ないの
で原料の歩留まりも大幅に向上する。
【００１９】
【発明の効果】以上説明したように、本発明によれば、
熱可塑性樹脂成形物に金属ボスを固定した歯車や車輪の
ような厚さが小さい偏平な成形品を効率よく製造するこ
とができる。Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a method of fixing a metal boss to a thermoplastic resin molded product, and more particularly, to a method of forming a flat shape such as a gear or a wheel. The present invention relates to a method of fitting and fixing a metal boss to the center of a molded thermoplastic resin product. 2. Description of the Related Art As gears and wheels used for various machine parts, there are many thermoplastic resin-coated metal molded products, for example, those in which a metal boss is fitted and fixed to a central bearing portion of a polyamide resin gear. Used. Such a thermoplastic resin-coated metal molded product is manufactured by, for example, a method described in Japanese Patent Publication No. 58-22336. However, according to the conventional method, when a flat gear or wheel having a small thickness (width) is manufactured, the flat gear or the wheel is formed into a cylindrical shape having a length several times or more than the product width. After assembling the molded polyamide resin molded article and the metal molded article molded to be equal to or longer than the length dimension of the polyamide resin molded article and integrating them, the integrated article is cut into a circle to form a thermoplastic resin-coated metal having a predetermined thickness. I was trying to get a molded product. However,
If the metal boss has a protruding portion in the axial direction or the metal boss has a conical or cup shape, after cutting the integrated product into rounds, the polyamide resin or metal is cut and processed to a predetermined shape. In this case, the scraps cut at this time can be reused, but the use efficiency of the polyamide resin molded product or the metal molded product, that is, the yield is low, and there was a major problem in productivity. . Accordingly, the present invention can efficiently manufacture a molded product made of resin and metal such as a flat gear or wheel having a small thickness (width), and can be used even when a metal boss has a complicated shape. It is an object of the present invention to provide a method for fixing a metal boss to a compatible thermoplastic resin molded product. [0005] In order to achieve the above object, a method of fixing a metal boss to a thermoplastic resin molded product according to the present invention comprises a method of forming a ring-shaped thermoplastic resin molded product having through holes. Forming a metal molded body having a shape corresponding to the shape of the metal boss of the final molded product by press-fitting a metal boss into the through hole, and fixing the metal molded body to a resin contact surface of the metal molded body. A step of applying a concavo-convex processing, a step of applying a binder to the concavo-convex processed surface, an outer surface shape corresponding to the outer shape of the thermoplastic resin molded product of the final molded product, and a diameter of the through hole of the metal Forming a thermoplastic resin molded article having a slightly smaller diameter than the outer diameter of the molded article, and heating the thermoplastic resin molded article to adjust the diameter of the through hole to a diameter corresponding to the outer diameter of the metal molded article. Expanding the heat-expanded thermoplastic Press-fitting the metal molded body into the through hole of the thermoplastic resin molded body, and heating the metal part of the thermoplastic resin molded body into which the metal molded body has been pressed by high-frequency electromagnetic induction, and contacting the metal contact part of the thermoplastic resin molded body. Is selectively heated to a melting temperature or higher. FIG. 1 is a schematic process diagram showing one embodiment of a method of fixing a metal boss to a thermoplastic resin molded product of the present invention, as shown in a perspective view of FIG. Next, a procedure for manufacturing a molded product 30 which is a wheel or gear material in which a metal boss 20 is fitted and fixed in a through hole 11 of a ring-shaped thermoplastic resin, for example, a polyamide resin molded product 10 formed in a ring shape, is shown. I have. In FIG. 1, steps 1 to 3 are performed by a metal boss 20.
Pretreatment procedure, steps 4 to 6 are performed on a polyamide resin molded product 10
Represents the pre-processing procedure. First, in step 1, a metal molded body 2 having a shape corresponding to the shape of the metal boss 20 of the final molded product.
This is a step of molding No. 1. The metal molded body 21 can be formed by any forming method, but is preferably formed by hot forging. In this hot forging, not only the metal is formed into a predetermined shape, but also the effect of homogenizing alloy components and improving strength by forging can be expected. However,
Since it is processing at high temperature and high pressure, it is inferior to cold forging in terms of precision, so it is necessary to finish the surface after molding, and it is necessary to finish the inner diameter required as a metal boss and with polyamide resin molded products. Make an outer diameter finish that affects the fixing strength. [0008] In step 2, the metal molded body 2 formed in step 1 is used.
This is a step of forming the irregularities 22 on the resin contact surface 1, in this embodiment, on the outer peripheral surface. Unevenness 22 formed by this unevenness processing
Is for improving the fixing strength between the polyamide resin molded article 10 and the metal boss 20 in the molded article 30 and can form any irregularities in the circumferential direction, the axial direction, and the like. It is preferable to perform knurling comprising mesh-like irregularities. The degree of the irregularities 22 is 1 to 3 m
m is appropriate, and if it is too small, there is almost no effect of improving the strength. Furthermore, after performing the unevenness processing, the fixing strength can be further improved by performing sandblasting on the unevenly processed surface to roughen the surface. Step 3 is a step of applying a bonding material 23 for increasing the bonding force with the thermoplastic resin on the uneven surface on which the unevenness 22 has been formed in step 2. Any binder can be used as long as it can increase the bonding strength between the thermoplastic resin and the metal, and a silane coupling agent can be suitably used. The method of applying the binder 23 is optional, but it is preferable to apply the binder 23 as thinly as possible. Therefore, as shown in FIG. 1, a method of spraying the binder 23 from the nozzle 24 while rotating the metal molded body 21 at an appropriate speed is used. Optimal. On the other hand, step 4 and step 5 are performed for the final molded product 3
This is a step of molding a thermoplastic resin (polyamide resin) molded body 12 to be a molded article 10 of a polyamide resin. In the present embodiment, after a cylindrical elongated object having a predetermined shape is formed, it is cut into a predetermined thickness to form a resin molded body 12 having a predetermined shape.
I'm trying to get That is, in Step 4, the polyamide resin molded article 10 has an outer diameter corresponding to the outer diameter,
After molding the cylindrical body 13 having an inner diameter slightly smaller than the outer diameter of the metal molded body 21 into an appropriate length by any molding method such as an extrusion molding method, an injection molding method, and a monomer casting (MC) method. In step 5, by cutting (slicing) in a dimension corresponding to the thickness of the polyamide resin molded article 10, the outer surface shape is a shape corresponding to the outer surface shape of the polyamide resin molded article 10 of the final molded article, and The resin molded body 12 having the through hole 11 having a diameter slightly smaller than the outer diameter of the metal molded body 21 is formed. At this time, it is preferable that the surface of the cylindrical body 13 or the resin molded body 12 is finished to a predetermined size so as to perform surface finishing and inner diameter finishing. The diameter of the through hole 11 is 0.4
It may be appropriately set according to the type of the resin or the overall size, but if it is less than 0.4%, the bonding strength may be insufficient. If it exceeds, the press-fitting operation in the post-process becomes difficult, and the residual stress becomes large, so that cracks are liable to be generated when processing into gears or the like. Step 6 is a step of heating and expanding the resin molded body 12 to fit the metal molded body 21. In this heating step, the diameter of the through-hole 11 is expanded to a diameter corresponding to the outer diameter of the metal molded body 21 by heating the resin molded body 12 with a heating furnace 14 or the like, and the metal into the through-hole 11 is heated. The press-fitting operation of the molded body 21 can be performed with a light force.
The heating temperature can be appropriately determined by the inner diameter of the through hole 11 with respect to the outer diameter of the metal molded body 21, the type of the thermoplastic resin, the softening point and the expansion coefficient.
What is necessary is just to heat to about 30-150 degreeC, for example, 140 degreeC. At this time, if the heating temperature is too high, the resin may be softened and the dimensional accuracy may be adversely affected, and if the heating temperature is too low, the resin cannot be sufficiently expanded, and a sufficient press-input reduction effect cannot be obtained. . Step 7 is a step of press-fitting the metal molded body 21 to which the binder 23 has been applied in Step 3 into the through-hole 11 of the polyamide resin molded body 12 that has been heated and expanded in Step 6. In this press-fitting step, parallelism and alignment are performed using appropriate jigs 15 and 25, and then pressure is applied in the axial direction using a press machine 16 such as a press machine to form a through hole in the polyamide resin molded body 12. The metal molded body 21 is press-fitted into the inside 11. As a result, a preform 31 obtained by press-fitting the metal molded body 21 into the polyamide resin molded body 12 and integrating the same is obtained. In step 8, the outer peripheral portion of the metal molded body of the preform 31 is heated by electromagnetic induction, and the polyamide resin molded body 1 is heated.
This is a high-frequency heating step of heating the metal contact portion of No. 2, that is, the inner peripheral surface portion of the through hole 11 to a melting temperature or higher. In this step, the preform 31 is rotated in the heating coil 17 while holding the preform 31 with an appropriate jig, so that the inner peripheral surface portion of the through hole 11 is uniformly heated to a melting temperature or higher. 2
The molten resin is applied to and adhered to the uneven surface formed on the outer periphery of 1. For example, the heating coil 17 is set to 10 to 20 kHz.
z, the metal molded body 21 is induction-heated by flowing a high-frequency current of z.
Is heated and melted on the inner peripheral surface of the resin. FIG. 3 shows a preform 31 in the high-frequency heating step.
FIG. 5 is a partial cross-sectional front view illustrating an example of a holding jig that rotates while holding the sheet. The holding jig includes a lower holding jig 41 for holding a lower part of the preformed body 31 and an upper holding jig 42 for holding an upper part of the preformed body 31. Are formed to be vertically movable and rotatable together. The lower holding jig 41 includes a metal turntable 43.
And a ceramic preform mounting member 44 mounted on the upper surface of the metal turntable 43.
Further, the upper holding jig 42 includes a metal center member 45.
And a ceramic center cap 46 attached to the lower end of the metal center member 45. The metal turntable 43 and the metal center member 45 are provided with a passage through which cooling water flows, thereby suppressing the temperature rise and heat storage of the holding jig due to repeated heating.
The heating temperature of the pre-formed body 31 changes due to heat transfer, and the pre-formed body 31 that prevents the fixing strength from decreasing is:
After being placed on the upper surface of the preform placing device 44 by a suitable transporting means, the upper holding jig 42 is lowered and the tip conical surface 47 of the center cap 46 is brought into contact with the metal compact 2 of the preform 31.
The shaft is aligned by entering the shaft insertion hole 26 provided at one center, and the preformed body 31 is held at the center of the heating coil 16. Thus, the induction heating of the metal molded body 21 and the heating and melting of the through hole 11 of the resin molded body 12 can be uniformly and reliably performed. As described above, the through-hole of the resin molded body 12 is formed by using the metal molded body 21 and the resin molded body 12 previously formed into the shapes corresponding to the shapes of the resin molded article 10 and the metal boss 20 of the final molded article 30. By press-fitting the metal molded body 21 into the metal 11, even when the metal boss 20 has a protrusion or the like, it is possible to efficiently manufacture the metal boss 20 without lowering the yield. For example, as shown in the cross-sectional view of FIG. 4, when manufacturing a molded product 53 in which a cup-shaped metal boss 52 is press-fitted into a ring-shaped resin molded product 51, a long product is manufactured as in the related art. In the case where cutting is performed after cutting into a circle, the preform 54 having the size indicated by the imaginary line in FIG. Therefore, this processing takes a long time and the yield of the raw material is greatly reduced. on the other hand,
When manufacturing the molded article 53 having the same shape by the procedure shown in the above-described embodiment, the resin molded article 51 and the metal boss 52 may be molded into the shape shown in FIG. Since the surface finishing is only required to finish the surface, the processing time can be greatly reduced, and the amount of material to be cut and removed is small, so that the yield of the raw material can be greatly improved. As described above, according to the present invention,
A flat molded product having a small thickness such as a gear or a wheel in which a metal boss is fixed to a thermoplastic resin molded product can be efficiently manufactured.
【図面の簡単な説明】
【図１】 本発明の熱可塑性樹脂成形物に金属ボスを固
定する方法の一形態例を示す概略工程図である。
【図２】 本発明方法で製造した成形品の一例を示す斜
視図である。
【図３】 高周波加熱工程で予備成形体を保持しながら
回転させる保持治具の一例を示す一部断面正面図であ
る。
【図４】 カップ型の金属ボスを圧入した成形品の一例
を示す断面図である。
【符号の説明】
１０…ポリアミド樹脂成形物、１１…通孔、１２…樹脂
成形体、１３…筒状体、１４…加熱炉、１６…加圧機、
１７…加熱コイル、２０…金属ボス、２１…金属成形
体、２２…凹凸、２３…結合材、２４…ノズル、３０…
成形品、３１…予備成形体BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic process diagram showing one embodiment of a method for fixing a metal boss to a thermoplastic resin molded product of the present invention. FIG. 2 is a perspective view showing an example of a molded product manufactured by the method of the present invention. FIG. 3 is a partial cross-sectional front view showing an example of a holding jig that rotates while holding a preform in a high-frequency heating step. FIG. 4 is a cross-sectional view showing an example of a molded product into which a cup-shaped metal boss is press-fitted. [Description of Signs] 10: polyamide resin molded product, 11: through hole, 12: resin molded product, 13: cylindrical body, 14: heating furnace, 16: pressurizing machine,
17 ... heating coil, 20 ... metal boss, 21 ... metal molded body, 22 ... unevenness, 23 ... binder, 24 ... nozzle, 30 ...
Molded product, 31 ... Preformed body
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 利育 大阪府岸和田市臨海町20番地の２ 昭和精 工株式会社内 (72)発明者 中林 徹弥 大阪府岸和田市臨海町20番地の２ 昭和精 工株式会社内 (72)発明者 高村 元雄 神奈川県高座郡寒川町一之宮７−８−41 高周波熱錬株式会社寒川工場内 (72)発明者 山口 秀樹 神奈川県平塚市真土2480番地 日本ポリペ ンコ株式会社平塚製造所内 Ｆターム(参考） 3J030 AC03 BA01 BB02 BC01 BC02 BC10 4F211 AD03 AD05 AH12 TA01 TA14 TA15 TH22 TN13 TN60 TN78 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshiyuki Suzuki 2 Showa Sesei, 20 Rinkaicho, Kishiwada City, Osaka Prefecture Kou Co., Ltd. (72) Inventor Tetsuya Nakabayashi 2 Showa Sesei, 20 Rinkaicho, Kishiwada City, Osaka Prefecture Kou Co., Ltd. (72) Inventor Motoo Takamura 7-8-41 Ichinomiya, Samukawa-cho, Koza-gun, Kanagawa Prefecture Inside the Samukawa factory (72) Inventor Hideki Yamaguchi 2480 Mado, Hiratsuka-shi, Kanagawa Japan Polype Niko Corporation Hiratsuka Factory F term (reference) 3J030 AC03 BA01 BB02 BC01 BC02 BC10 4F211 AD03 AD05 AH12 TA01 TA14 TA15 TH22 TN13 TN60 TN78
Claims (1)
性樹脂成形物の前記通孔内に金属ボスを圧入して固定す
る方法であって、最終成形品の金属ボスの形状に対応し
た形状の金属成形体を成形する工程と、該金属成形体の
樹脂接触面に凹凸加工を施す工程と、該凹凸加工面に結
合材を塗布する工程と、外面形状を最終成形品の熱可塑
性樹脂成形物の外面形状に対応した形状とし、かつ、通
孔の直径を前記金属成形体の外径に対して僅かに小径と
した熱可塑性樹脂成形体を形成する工程と、該熱可塑性
樹脂成形体を加熱して通孔の直径を金属成形体の外径に
対応した直径になるように膨張させる工程と、該加熱膨
張した熱可塑性樹脂成形体の通孔内に前記金属成形体を
圧入する工程と、金属成形体を圧入した熱可塑性樹脂成
形体の金属部分を高周波電磁誘導によって加熱し、熱可
塑性樹脂成形体の金属接触部分を選択的に溶融温度以上
に加熱する工程とを含むことを特徴とする熱可塑性樹脂
成形物に金属ボスを固定する方法。Claims: 1. A method of press-fitting a metal boss into a through hole of a thermoplastic resin molded article formed in a ring shape having a through hole, wherein the metal boss of a final molded product is provided. Forming a metal molded body having a shape corresponding to the shape of the above, forming unevenness on the resin contact surface of the metal molded body, applying a binder to the uneven processed surface, and finally forming the outer surface shape Forming a thermoplastic resin molded article having a shape corresponding to the outer surface shape of the thermoplastic resin molded article of the article, and having a diameter of the through hole slightly smaller than the outer diameter of the metal molded article; Heating the thermoplastic resin molded article to expand the diameter of the through-hole to a diameter corresponding to the outer diameter of the metal molded article; and forming the metal mold in the through-hole of the thermally expanded thermoplastic resin molded article. Press-fitting process and thermoplastic resin press-fitting metal molded product Fixing the metal boss to the thermoplastic resin molding characterized by including a step of heating the metal part of the form by high-frequency electromagnetic induction and selectively heating the metal contact part of the thermoplastic resin molding above the melting temperature. how to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001312137A JP2003118006A (en) | 2001-10-10 | 2001-10-10 | Method for fixing metal boss to thermoplastic resin molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001312137A JP2003118006A (en) | 2001-10-10 | 2001-10-10 | Method for fixing metal boss to thermoplastic resin molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003118006A true JP2003118006A (en) | 2003-04-23 |
Family
ID=19130843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001312137A Pending JP2003118006A (en) | 2001-10-10 | 2001-10-10 | Method for fixing metal boss to thermoplastic resin molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003118006A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005104692A2 (en) | 2004-04-16 | 2005-11-10 | Quadrant Epp Ag | Electronic power assist steering worm gears |
| JP2007237459A (en) * | 2006-03-06 | 2007-09-20 | Honda Motor Co Ltd | Worm wheel and its manufacturing method |
| GB2439530A (en) * | 2006-05-26 | 2008-01-02 | Pera Innovation Ltd | Selectively heating portions of a thermoplastics material for susequent processing |
| EP2230071A1 (en) | 2009-03-17 | 2010-09-22 | Quadrant Epp Ag | Composite gear blank and method for manufacturing the same |
| JP2012081588A (en) * | 2010-10-06 | 2012-04-26 | Neturen Co Ltd | Core metal for resin welding, composite member and method of manufacturing the composite member |
| JP2012106507A (en) * | 2012-01-28 | 2012-06-07 | Neturen Co Ltd | Production process for composite member |
| EP2641724A1 (en) | 2012-03-23 | 2013-09-25 | Neturen Co., Ltd. | Core metal for resin welding, composite member and method of manufacturing the same |
| JP2014019376A (en) * | 2012-07-23 | 2014-02-03 | Nsk Ltd | Electric power steering device and method of manufacturing the same |
| US9266282B2 (en) | 2012-03-23 | 2016-02-23 | Neturen Co., Ltd. | Core metal for resin welding, composite member and method of manufacturing the same |
| JP2017520729A (en) * | 2014-06-11 | 2017-07-27 | ジェイテクト ユーロップ | Method of manufacturing a toothed wheel with a ribbed mold rim |
| CN107377276A (en) * | 2017-06-19 | 2017-11-24 | 杭州台创实业有限公司 | A kind of hub surface bonding agent coating process and metal wheel hub Shooting Technique |
| JP2018034437A (en) * | 2016-08-31 | 2018-03-08 | 日新製鋼株式会社 | Method for producing composite body |
| JP2018115679A (en) * | 2017-01-16 | 2018-07-26 | クオドラントポリペンコジャパン株式会社 | Resin gear, electrically driven power steering, and method of manufacturing resin gear |
| US10920163B2 (en) | 2014-12-26 | 2021-02-16 | Kyodo Yushi Co., Ltd. | Grease composition for lubricating resins and electric power steering device |
| CN116604824A (en) * | 2023-06-05 | 2023-08-18 | 江苏丰东热技术有限公司 | Processing furnace for nylon inlaid gear |
-
2001
- 2001-10-10 JP JP2001312137A patent/JP2003118006A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005104692A3 (en) * | 2004-04-16 | 2006-04-20 | Quadrant Ip Ag | Electronic power assist steering worm gears |
| JP2007532360A (en) * | 2004-04-16 | 2007-11-15 | クワドラント エーペーペー アクチェンゲゼルシャフト | Electronic power assist steering worm gear |
| WO2005104692A2 (en) | 2004-04-16 | 2005-11-10 | Quadrant Epp Ag | Electronic power assist steering worm gears |
| JP2007237459A (en) * | 2006-03-06 | 2007-09-20 | Honda Motor Co Ltd | Worm wheel and its manufacturing method |
| GB2439530A (en) * | 2006-05-26 | 2008-01-02 | Pera Innovation Ltd | Selectively heating portions of a thermoplastics material for susequent processing |
| GB2439530B (en) * | 2006-05-26 | 2011-07-13 | Pera Innovation Ltd | Method of and apparatus for producing thermoplastic materials |
| US9205611B2 (en) | 2009-03-17 | 2015-12-08 | Quadrant Epp Ag | Composite gear blank |
| EP2230071A1 (en) | 2009-03-17 | 2010-09-22 | Quadrant Epp Ag | Composite gear blank and method for manufacturing the same |
| WO2010106120A2 (en) | 2009-03-17 | 2010-09-23 | Quadrant Epp Ag | Composite gear blank and method for manufacturing the same |
| JP2012081588A (en) * | 2010-10-06 | 2012-04-26 | Neturen Co Ltd | Core metal for resin welding, composite member and method of manufacturing the composite member |
| JP2012106507A (en) * | 2012-01-28 | 2012-06-07 | Neturen Co Ltd | Production process for composite member |
| EP2641724A1 (en) | 2012-03-23 | 2013-09-25 | Neturen Co., Ltd. | Core metal for resin welding, composite member and method of manufacturing the same |
| US9266282B2 (en) | 2012-03-23 | 2016-02-23 | Neturen Co., Ltd. | Core metal for resin welding, composite member and method of manufacturing the same |
| US10154547B2 (en) | 2012-03-23 | 2018-12-11 | Neturen Co., Ltd. | Core metal for resin welding, composite member and method of manufacturing the same |
| JP2014019376A (en) * | 2012-07-23 | 2014-02-03 | Nsk Ltd | Electric power steering device and method of manufacturing the same |
| JP2017520729A (en) * | 2014-06-11 | 2017-07-27 | ジェイテクト ユーロップ | Method of manufacturing a toothed wheel with a ribbed mold rim |
| US10920163B2 (en) | 2014-12-26 | 2021-02-16 | Kyodo Yushi Co., Ltd. | Grease composition for lubricating resins and electric power steering device |
| JP2018034437A (en) * | 2016-08-31 | 2018-03-08 | 日新製鋼株式会社 | Method for producing composite body |
| JP2018115679A (en) * | 2017-01-16 | 2018-07-26 | クオドラントポリペンコジャパン株式会社 | Resin gear, electrically driven power steering, and method of manufacturing resin gear |
| CN107377276A (en) * | 2017-06-19 | 2017-11-24 | 杭州台创实业有限公司 | A kind of hub surface bonding agent coating process and metal wheel hub Shooting Technique |
| CN116604824A (en) * | 2023-06-05 | 2023-08-18 | 江苏丰东热技术有限公司 | Processing furnace for nylon inlaid gear |
| CN116604824B (en) * | 2023-06-05 | 2023-12-01 | 江苏丰东热技术有限公司 | Processing furnace for nylon inlaid gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2003118006A (en) | Method for fixing metal boss to thermoplastic resin molding | |
| JP2017507807A (en) | Method of manufacturing composite part and composite part | |
| US11065687B2 (en) | Method for manufacturing metal product with two blanks | |
| JP4315325B2 (en) | Gear unit manufacturing method | |
| JP4363626B2 (en) | How to blank press optical components | |
| JP3999870B2 (en) | Method for producing metal-rubber composite member | |
| JP5686582B2 (en) | Axle case manufacturing method | |
| JP2002098598A (en) | Manufacturing method of coronal part for torque sensor | |
| JP2001301036A (en) | Resin molded article having metal boss and method and manufacturing the same | |
| JPS62128932A (en) | Molding method for glass lens | |
| JPH09254196A (en) | Manufacture of plastic injection molding die | |
| JPH04142919A (en) | Thermal caulking device | |
| JPH09122805A (en) | Ring, its production and gear using ring | |
| JP2005052876A (en) | Method for producing vehicle wheel | |
| JPH0732411A (en) | Molding method for plastic centrifugal impeller | |
| Marquis | Inductors and Coils New Production Solutions using Additive Manufacturing such as EBM 3D Printing and Precision Casting—A Presentation of the Current State-of-the-Art Technologies | |
| JP4365727B2 (en) | Mold for molding and manufacturing method thereof | |
| JPH05237934A (en) | Manufacture of metal and resin hybrid bearing | |
| JP2989800B2 (en) | Aluminum induction heating method | |
| JPS6227336A (en) | Forming device for optical parts | |
| JP2003071632A (en) | Manufacturing method for gear | |
| JP2005047450A (en) | Method for manufacturing vehicle wheel | |
| JPH02274504A (en) | Manufacture of ceramic product having hollow part | |
| JPS6327573B2 (en) | ||
| JPH0692657A (en) | Method for producing hollow optical element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041001 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050826 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050913 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060207 |