JP5895218B2 - 樹脂成形品形成用分割体、樹脂成形品製造方法および熱交換器 - Google Patents
樹脂成形品形成用分割体、樹脂成形品製造方法および熱交換器 Download PDFInfo
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- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- 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
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- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
- B29C65/0609—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding characterised by the movement of the parts to be joined
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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
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
- B29C65/7814—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of inter-cooperating positioning features, e.g. tenons and mortises
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- B29C65/82—Testing the joint
- B29C65/8207—Testing the joint by mechanical methods
- B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
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- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
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- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
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- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
- B29C66/12443—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue having the tongue substantially in the middle
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29C66/05—Particular design of joint configurations
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- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
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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
- 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
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
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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
- 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
- B29C66/53—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
- B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
- B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
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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
- 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
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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
- 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
- B29C66/73—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
- B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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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
- 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
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
- B29C66/9513—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools characterised by specific vibration frequency values or ranges
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
- B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
- B29C66/9517—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools characterised by specific vibration amplitude values or ranges
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- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/18—Heat-exchangers or parts thereof
Description
図1(a)は、本発明の第1実施形態に係る樹脂成形品形成用分割体である一対の分割体2,3の断面図である。本実施形態では、図2に示すように、一対の分割体2,3がほぼ同一の形状を有している。なお、図1(a)は、図2中にI−I線で示す位置での断面図である。
前記実施形態では、図5(a)に示すように、凹凸がX方向に平行な筋模様を呈していたが、凹凸は、X方向に対して傾斜する方向または直交する方向に平行な筋模様を呈していてもよい。換言すれば、溶着リブ4は、必ずしも凹凸の筋模様に平行な第1溶着リブを含んでいる必要はない。この場合には、振動溶着時の振動方向を、凹凸の筋模様と平行な方向にすればよい。
次に、図7(a)〜(c)を参照して、本発明の第2実施形態に係る一対の分割体2,3を説明する。なお、本実施形態では、第1実施形態と同一構成部分には同一符号を付し、その説明を省略することがある。この点は、後述する第3実施形態でも同様である。
なお、第1実施形態の変形例で説明したように、凹凸の筋模様は必ずしもX方向に平行である必要はない。例えば、凹凸の筋模様をY方向に平行にし、屈曲溶着リブ42の中央をY方向に平行な直線状にした場合には、屈曲溶着リブ42の中央が本発明の第1溶着リブに相当し、屈曲溶着リブ41のその他の部分および直線溶着リブ42が本発明の第2溶着リブに相当する。この場合には、第2溶着リブ上の凹凸を、Y方向と直交する断面における単位長さ当たりの接合面40の表面距離が第1溶着リブ上の凹凸よりも大きくなるように構成すればよい。
次に、図8(a)および(b)ならびに図9を参照して、本発明の第3実施形態に係る一対の分割体2,3を説明する。
一対の分割体2,3が形成する樹脂成形品1の内部空間11は、必ずしも両端が樹脂成形品1の端面に開口する流路である必要はない。例えば図10に示すように、樹脂成形品1の内部空間11は密閉されてもよい。さらに、一対の分割体2,3には、どちらにも窪みが形成されている必要はなく、例えば図10に示すように、一対の分割体2,3の一方は扁平な板状であってもよい。
図2および図3に示す一対の分割体を、ガラス繊維が30%配合されたポリフェニレンサルファイド樹脂を用いて射出成形により成型した。射出成形では、溶融樹脂の温度を320℃、金型温度を130℃とした。接合面の凹凸は全面に亘って一定の断面三角形状とし、凹凸のピッチを1.5mm、高さを0.6mmとした。得られた分割体の凹凸を観察した結果、射出された樹脂が細部まで行き渡っており、凹凸の細かな形状も問題なく転写されていた。
凹凸のピッチを1.0mmに変更した以外は実施例1と同様にして樹脂成形品を得た。
図6に示すように、接合面が溶着リブの先端面で構成された分割体と、接合面が溶着リブが遊嵌した状態で挿入される溝の底面で構成された分割体を成型した。ただし、両接合面はフラットとした。これらの分割体を実施例1と同様にして振動溶着し、樹脂成形品を得た。
接合面をフラットにした以外は実施例1と同様にして樹脂成形品を得た。
実施例1,2および比較例1,2の樹脂成形品に対して、内部破壊圧を測定した。その結果を表1に示す。なお、「内部破壊圧」とは、樹脂成形品の内部空間を液体で満たしてその液体の圧力(内圧)を上昇させていった場合に、樹脂成形品が破壊したときの圧力をいう。
11 内部空間
2,3 分割体
4 溶着リブ
40 溶着面
41 直線溶着リブ(第1溶着リブ)
42 屈曲溶着リブ(第2溶着リブ)
5 ベース部
61 直線窪み
62 屈曲窪み
8 バリ防護壁
Claims (7)
- 互いに重ね合わされて振動溶着されることにより、樹脂成形品を形成する一対の分割体であって、
前記一対の分割体は、互いに当接する接合面をそれぞれ有し、
前記接合面には、特定方向に平行な筋模様を呈する凹凸であって前記一対の分割体が重ね合わされたときに互いに噛み合うことにより前記一対の分割体の前記特定方向に沿った相対移動を可能とする凹凸が設けられており、
前記樹脂成形品は、内部空間を有する中空体であり、
前記一対の分割体のそれぞれには、前記内部空間の輪郭に沿って延びる突条の溶着リブが設けられており、この溶着リブの先端面が前記接合面を構成し、
前記溶着リブは、前記特定方向に平行な第1溶着リブと、前記特定方向に平行でない第2溶着リブとを含み、
前記凹凸は、前記第1溶着リブの先端面と前記第2溶着リブの先端面の双方に設けられており、
前記第2溶着リブ上の前記凹凸は、前記特定方向と直交する断面における単位長さ当たりの前記接合面の表面距離が前記第1溶着リブ上の前記凹凸よりも大きくなるように構成されている、樹脂成形品形成用分割体。 - 前記内部空間は、直線部と折り返し部を交互に繰り返す蛇行した形状であり、
前記一対の分割体のそれぞれには、前記直線部を規定する直線窪みと前記折り返し部を規定する屈曲窪みが設けられており、
前記第1溶着リブと前記直線窪みは互いに平行に交互に並んでおり、前記第2溶着リブは前記屈曲窪みに沿って前記第1溶着リブ同士を連結している、請求項1に記載の樹脂成形品形成用分割体。 - 前記一対の分割体のそれぞれには、前記溶着リブに隣接するバリ収容スペースを確保するベース部と、前記ベース部から立ち上がるバリ防護壁が設けられている、請求項1または2に記載の樹脂成形品形成用分割体。
- 請求項1〜3の何れか一項に記載の樹脂成形品形成用分割体を用いて樹脂成形品を製造する方法であって、前記一対の分割体を振動溶着する際に一方の分割体に前記特定方向への振動を与える、樹脂成形品製造方法。
- 前記振動の周波数は40Hz〜100kHzである、請求項4に記載の樹脂成形品製造方法。
- 冷媒と水との間で熱交換を行う熱交換器であって、
請求項1〜3の何れか一項に記載の樹脂成形品形成用分割体を用いた中空の樹脂成形品であってその内部空間が、水が流れる流路を構成する樹脂成形品と、
前記樹脂成形品の内部空間内に配置された、内部に冷媒が流れる冷媒管と、
を備えた、熱交換器。 - 請求項1〜3の何れか一項に記載の樹脂成形品形成用分割体を用いた、熱交換器。
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