JP2002192618A - 熱可塑性樹脂成形体粗材の溶着方法 - Google Patents

熱可塑性樹脂成形体粗材の溶着方法

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Publication number
JP2002192618A
JP2002192618A JP2000396427A JP2000396427A JP2002192618A JP 2002192618 A JP2002192618 A JP 2002192618A JP 2000396427 A JP2000396427 A JP 2000396427A JP 2000396427 A JP2000396427 A JP 2000396427A JP 2002192618 A JP2002192618 A JP 2002192618A
Authority
JP
Japan
Prior art keywords
thermoplastic resin
resin molded
welding
molded article
heating
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
Application number
JP2000396427A
Other languages
English (en)
Inventor
Kazuyuki Nishikawa
和之 西川
Tadashi Makiguchi
直史 牧口
Mitsuo Hosokawa
光雄 細川
Hisamoto Tachiki
久元 立木
Hideki Doi
英揮 土井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd filed Critical Sintokogio Ltd
Priority to JP2000396427A priority Critical patent/JP2002192618A/ja
Priority to EP20010130700 priority patent/EP1219406A3/en
Priority to US10/025,955 priority patent/US20020088541A1/en
Publication of JP2002192618A publication Critical patent/JP2002192618A/ja
Pending legal-status Critical Current

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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
    • 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
    • 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
    • B29C65/1429—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 characterised by the way of heating the interface
    • B29C65/1432—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 characterised by the way of heating the interface direct heating of the surfaces 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
    • 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
    • B29C65/1429—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 characterised by the way of heating the interface
    • B29C65/1464—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 characterised by the way of heating the interface making use of several radiators
    • B29C65/1467—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 characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous welding
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror
    • B29C65/2015—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror being a single welding mirror comprising several separate heating surfaces in different planes, e.g. said heating surfaces having different temperatures
    • 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
    • B29C66/10—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
    • B29C66/1142—Single butt to butt joints
    • 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
    • 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
    • B29C66/542—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 joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/712—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 the composition of one of the parts to be joined being different from the composition of the other part
    • 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
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B29C66/91423—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools using joining tools having different temperature zones or using several joining tools with different temperatures
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91655—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
    • 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
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • 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
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    • B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract

(57)【要約】 【課題】溶着部を有する2個以上の熱可塑性樹脂成形体
粗材の前記溶着部を加熱軟化させたのち前記熱可塑性樹
脂成形体粗材同士を押圧して溶着させる熱可塑性樹脂成
形体粗材の溶着方法において、2個以上の成形品粗材を
適確かつ強固に溶着することが可能な成形品粗材の溶着
方法を提供する。 【解決手段】通電発熱体５・６を溶着部７・８に接近ま
たは当接させて溶着部７・８を好適状態に加熱したのち
2個以上の前記溶着部７・８同士を当接させ、これらの
溶着部７・８が固着するまで押圧状態を維持することを
特徴とする。

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
体粗材の溶着方法に係り、より詳しくは、ＡＢＳ、ＰＭ
ＭＡ、ＰＳ等の熱可塑性樹脂で成形された2個以上の成
形体粗材（以下、成形品粗材と略称する）同士を溶着し
て、例えば、自動車のランプ、インテークマニホール
ド、バッテリ等の熱可塑性樹脂成形体の完成品を製造す
る方法に関する。
【０００２】
【従来技術と課題】従来、2個以上の成形体粗材同士を
貼り合せて1個の完成品を製造する方法の一つとして、
前記成形体粗材の溶着部に昇温された発熱体を近接また
は当接させてその溶着部を加熱軟化させた後、これら2
個以上の成形体粗材を合わせて押圧し溶着するようにし
たものがある。しかし、このように構成された従来の成
形体粗材の溶着方法では、溶着した部分が全体的或いは
部分的に比較的早期に剥離するなどの問題があった。
【０００３】本発明は、上記の事情に鑑みて成されたも
ので、その目的は、2個以上の成形体粗材同士を適確か
つ強固に溶着することが可能な成形体粗材の溶着方法を
提供することにある。
【０００４】
【課題を解決するための手段】上記の目的を達成するた
め、本発明における熱可塑性樹脂成形体粗材の溶着方法
は、溶着部を有する2個以上の熱可塑性樹脂成形体粗材
の前記溶着部を加熱軟化させたのち前記熱可塑性樹脂成
形体粗材同士を押圧して溶着させる熱可塑性樹脂成形体
粗材の溶着方法において、通電発熱体を前記溶着部に接
近または当接させて前記溶着部を好適状態に加熱したの
ち2個以上の前記溶着部同士を当接させ、これらの溶着
部が固着するまで押圧状態を維持することを特徴とす
る。
【０００５】
【発明の実施の形態】なお、本発明における通電発熱体
は、ニッケル・クロム合金や鉄・クロム合金などを材料
して製造されている。またなお、本発明における溶着部
の加熱が好適状態であるか否かの判定は、加熱された溶
着部を所要大きさの圧力で押圧した時にその溶着部が所
要量沈降するか否かによって行なう。すなわち、加熱さ
れた溶着部をこれと同じ温度に加熱された断熱性の押し
板部材により、圧力０.１ｋｇ／ｃｍ２で成形体粗材同
士の溶着方向へ押圧した場合、その溶着部の沈降量が、
０.１ｍｍ以上になるときをいう。
【０００６】さらになお、表面上は溶着部が上述の好適
状態になっていても、溶着部が発熱体による急激な加熱
で熱分解を起こす場合には、好適状態に至ったとは言え
ないので、発熱体の温度を下げたり、発熱体と溶着部と
の間隔を広げて急激な加熱にならないようにする。
【０００７】
【実施例１】以下、本発明の第1実施例について図１に
基づき詳細に説明する。図１に示すように、上受型１に
よって保持されたアクリル樹脂製の上成形体粗材２と、
下受型３によって保持されたＡＢＳ樹脂製の下成形体粗
材４とを、上成形体粗材２の溶着部７および下成形体粗
材４の溶着部８をそれぞれ対向させかつ所要の間隔をお
いて配置し、続いて、上成形体粗材２と下成形体粗材４
との間に、支持部材３によって支持されかつ温度450℃
および温度350℃にそれぞれ発熱された2個の上・下通電
発熱体５・６を進入させる。なお、前記溶着部７は幅2.
2ｍｍ、高さ３ｍｍのリブ構造体であり、また、前記溶
着部８も幅1.5ｍｍ、高さ５ｍｍのリブ構造体である。
次いで、上成形体粗材２を下降させるとともに下成形体
粗材４を上昇させて、2個の上・下成形体粗材２・４
を、溶着部７・８がそれぞれ上・下通電発熱体５・６か
ら１ｍｍ離れた位置に移動させ、さらにその状態を所要
時間維持する。これにより、溶着部７・８を上・下通電
発熱体５・６によってそれぞれ好適状態に加熱して軟化
させる。
【０００８】こうして、上・下成形体粗材２・４の加熱
完了後、上成形体粗材２を上昇させるとともに下成形体
粗材４を下降させ、続いて、上・下通電発熱体５・６を
上・下成形体粗材２・４間位置から後退させる。その
後、再び上成形体粗材２を下降させるとともに下成形体
粗材４を上昇させて、加熱軟化した溶着部７・８を互い
に当接させ、溶着部７・８が冷却されるまで上・下成形
体粗材２・４を押圧する。これにより、２個の上・下成
形体粗材２・４は溶着部７・８にて強固に溶着されるこ
ととなる。
【０００９】
【実施例２】第1実施例における上・下成形体粗材２・
４の材質をＰＰ樹脂に、また溶着部７・８の寸法を、溶
着部７は幅３ｍｍ、高さ５ｍｍに、溶着部８は幅２ｍｍ
、高さ150ｍｍにそれぞれ変え、さらに、上成形体粗材
２と下成形体粗材４の加熱開始時刻を変えて、第1実施
例と同様の溶着を行なったところ、同様に強固に溶着さ
れた完成品が得られた。この場合、上・下通電発熱体５
・６の温度を４５０℃に、溶着部７・８と上・下通電発
熱体５・６とのそれぞれの間隔を1.5ｍｍにして、溶着
部７を30秒間、溶着部８を20秒間それぞれ加熱した。こ
の加熱は同時に完了した。
【００１０】なお、第1実施例において、材質および溶
着部の寸法をそのままとし、溶着部７・８と上・下通電
発熱体５・６との間隔もそのままとし、下通電発熱体６
の温度だけを上通電発熱体５と同じ450℃にして第1実施
例と同様にして溶着を行なった。その結果、ＡＢＳ樹脂
製の肉厚の薄い下成形体粗材４の溶着部８は、過度に加
熱され自重に負けて変形し、部分的にしか溶着されず、
極めて信頼性の劣る溶着であった。
【００１１】
【発明の効果】以上の説明から明らかなように本発明
は、溶着部を有する2個以上の熱可塑性樹脂成形体粗材
の前記溶着部を加熱軟化させたのち前記熱可塑性樹脂成
形体粗材同士を押圧して溶着させる熱可塑性樹脂成形体
粗材の溶着方法において、通電発熱体を前記溶着部に接
近または当接させて前記溶着部を好適状態に加熱したの
ち2個以上の前記溶着部同士を当接させ、これらの溶着
部が固着するまで押圧状態を維持するから、2個以上の
成形品粗材を適確かつ強固に溶着することが可能になる
などの優れた実用的効果を奏する。
【図面の簡単な説明】
【図１】本発明の一実施例について説明するための概略
正面図である。
【符号の説明】
２；４ 熱可塑性樹脂成形体粗材 ５；６ 通電発熱体 ７；８ 溶着部
フロントページの続き (72)発明者 立木 久元 愛知県豊川市穂ノ原３−１ 新東工業株式 会社豊川製作所内 (72)発明者 土井 英揮 愛知県豊川市穂ノ原３−１ 新東工業株式 会社豊川製作所内 Ｆターム(参考） 4F211 AA13 AA21 AH17 AJ03 AR06 TA01 TC08 TC20 TD07 TD15 TH06 TN02 TQ01

Claims (6)

    【特許請求の範囲】
  1. 【請求項１】 溶着部を有する2個以上の熱可塑性樹脂成
    形体粗材の前記溶着部を加熱軟化させたのち前記熱可塑
    性樹脂成形体粗材同士を押圧して溶着させる熱可塑性樹
    脂成形体粗材の溶着方法において、通電発熱体を前記溶
    着部に接近または当接させて前記溶着部を好適状態に加
    熱したのち2個以上の前記溶着部同士を当接させ、これ
    らの溶着部が固着するまで押圧状態を維持することを特
    徴とする熱可塑性樹脂成形体粗材の溶着方法。
  2. 【請求項２】溶着部を有する2個以上の熱可塑性樹脂成
    形体粗材における前記溶着部を加熱軟化させたのち前記
    熱可塑性樹脂成形体粗材同士を押圧して溶着させる熱可
    塑性樹脂成形体粗材の溶着方法において、2個以上の熱
    可塑性樹脂成形体粗材を溶着部を相互に対向させかつ所
    要の間隔をおいて配置させる工程と、これら2個以上の
    熱可塑性樹脂成形体粗材の間に、これら2個以上の熱可
    塑性樹脂成形体粗材の溶着部をそれぞれ加熱する2個以
    上の通電発熱体を進入させる工程と、前記2個以上の熱
    可塑性樹脂成形体粗材の溶着部を前記2個以上の通電発
    熱体にそれぞれ近接または当接させるとともにその状態
    を所要時間維持して前記溶着部を好適状態に加熱する工
    程と、溶着部を好適状態に加熱された2個以上の熱可塑
    性樹脂成形体粗材間から前記2個の発熱体を後退させる
    工程と、前記2個以上の熱可塑性樹脂成形体粗材を互い
    に当接させるとともに溶着部が固着されるまで熱可塑性
    樹脂成形体粗材同士を押圧する工程と、を有することを
    特徴とする熱可塑性樹脂成形体粗材の溶着方法。
  3. 【請求項３】請求項１または２に記載の熱可塑性樹脂成
    形体粗材の溶着方法において、前記2個以上の溶着部を
    好適状態に加熱する工程はほぼ同時に完了することを特
    徴とする熱可塑性樹脂成形体粗材の溶着方法。
  4. 【請求項４】 請求項１〜３のうちいずれか１項に記載
    の熱可塑性樹脂成形体粗材の溶着方法において、前記溶
    着部の加熱が好適状態であるか否かの判定は、加熱され
    た前記溶着部を所要大きさの圧力で押圧した時にその溶
    着部が所要量沈降するか否かによって行なうことを特徴
    とする熱可塑性樹脂成形体粗材の溶着方法。
  5. 【請求項５】 請求項１〜４のうちいずれか１項に記載
    の熱可塑性樹脂成形体粗材の溶着方法において、前記溶
    着部を好適状態に加熱すべく要素は、少なくとも、前記
    溶着部と前記発熱体との間隔、前記発熱体の温度および
    加熱時間であることを特徴とする熱可塑性樹脂成形体粗
    材の溶着方法。
  6. 【請求項６】 請求項１または２に記載の熱可塑性樹脂
    成形体粗材の溶着方法において、前記通電発熱体は、発
    熱量の制御可能な複数の通電発熱体によって構成したこ
    とを特徴とする熱可塑性樹脂成形体粗材の溶着方法。
JP2000396427A 2000-12-27 2000-12-27 熱可塑性樹脂成形体粗材の溶着方法 Pending JP2002192618A (ja)

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EP20010130700 EP1219406A3 (en) 2000-12-27 2001-12-21 Welding of thermoplastic material
US10/025,955 US20020088541A1 (en) 2000-12-27 2001-12-26 Thermoplastic welding

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CN1329179C (zh) * 2004-07-12 2007-08-01 英华达股份有限公司 结合柱的热压方法
DE102005050571B4 (de) * 2005-10-21 2016-05-25 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Verschweißen von Kunststoffform- bzw. Kunststoffhohlkörpern
DE102013221724B4 (de) * 2013-10-25 2020-10-15 Magna Exteriors Gmbh Verfahren zur Verbindung von thermoplastischen, lackierten Bauteilen sowie Kunststoff-Bauteil
US20180147789A1 (en) * 2016-11-29 2018-05-31 Dukane Ias, Llc Rotary Hot Plate Welding System and Method
DE102017011354A1 (de) 2017-12-07 2019-06-13 Kocher-Plastik Maschinenbau Gmbh Verfahren und Vorrichtung zum Verbinden von mindestens zwei Kunststoffteilen
CN109826528A (zh) * 2019-03-26 2019-05-31 广东东箭汽车科技股份有限公司 电动撑杆及热熔装置

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