JPH0524818B2 - - Google Patents

Info

Publication number
JPH0524818B2
JPH0524818B2 JP62282348A JP28234887A JPH0524818B2 JP H0524818 B2 JPH0524818 B2 JP H0524818B2 JP 62282348 A JP62282348 A JP 62282348A JP 28234887 A JP28234887 A JP 28234887A JP H0524818 B2 JPH0524818 B2 JP H0524818B2
Authority
JP
Japan
Prior art keywords
joined
peek
joining
members
parts
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.)
Expired - Lifetime
Application number
JP62282348A
Other languages
English (en)
Other versions
JPH01123728A (ja
Inventor
Shinichi Oomura
Toshibumi Mizuno
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries 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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP62282348A priority Critical patent/JPH01123728A/ja
Publication of JPH01123728A publication Critical patent/JPH01123728A/ja
Publication of JPH0524818B2 publication Critical patent/JPH0524818B2/ja
Granted legal-status Critical Current

Links

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
    • B29C66/01—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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or profiles
    • 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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • 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
    • 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
    • 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
    • B29C66/01—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
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre 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
    • B29C66/01—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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
    • 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each 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
    • B29C66/50—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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
    • B29C66/52231—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • 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
    • B29C66/70—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
    • 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
    • B29C66/91411—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 parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2071/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as moulding material
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】
［産業上の利用分野］ 本発明はポリエーテルエーテルケトン（以下、
「PEEK」と略記する。）製部材の接合方法に係
り、特に、PEEK製のパイプ、継手、バルブ等の
配管部品等の接合に有効なPEEK製部材の接合方
法に関する。 ［従来の技術］ 従来の配管等の接合技術には、次のようなもの
がある。 接着：有機溶剤（接着剤）にて被接合材の母
材を溶かして、これを押しつけて一体化する。 熱溶着：熱で被接合材の母材を溶かして、こ
れを押しつけて一体化する。 熱溶接：熱で被接合材の母材に溶接棒を溶け
込ませて一体化する。 ［発明が解決しようとする問題点］ 上記〜の接合方法は、次のような理由か
ら、PEEK製の部材には適用することができな
い。 の接着方法は、PEEKに適当な、即ちPEEK
を溶かすことができる有機溶剤（接着剤）がない
ため、適用することができない。 ，の方法によれば、熱でPEEKを溶かして
接合することが可能であるが、この場合、溶融部
に気泡が発生し、この気泡は接合後においても接
合部に残存することとなる。接合部に気泡が残存
すると、接合強度は著しく弱いものとなる上に、
接合部に無数の凹凸ができ、実用には供し得ない
接合部材となる。 このようなことから、従来より、PEEK製部材
に好適な接合技術の出現が切望されていた。 ［問題点を解決するための手段］ 本発明のPEEK製部材の接合方法は、PEEK製
部材の被接合部を熱溶融させて接合する方法にお
いて、少なくとも被接合部近傍を加温して非発泡
化処理した後、溶融接合することを特徴とする。 ［作用］ PEEK成形品は、所定温度に所定時間保持する
ことにより、非発泡化処理することが可能であ
る。そして、非発泡化処理したものは、加熱溶融
の際に気泡が発生することが殆どない。 本発明においては、PEEK製部材の加熱溶融接
合に先立ち、少なくとも被接合部近傍を加温して
非発泡化処理するため、加熱溶融接合時の気泡発
生が防止され、接合部に気泡が残存することによ
る種々の問題が解決される。 ［実施例］ 以下、図面を参照して本発明の実施例方法につ
いて説明する。 第１図〜第４図は本発明のPEEK製部材の接合
方法の一例として、PEEK製配管を接合する場合
を示す図である。 本発明の方法に従つて、PEEK製配管の接合を
行なうには、まず、接合する配管部品、例えば、
パイプ、継手、バルブ等を準備し、パイプ等は必
要な長さに切断する。そして、これらの配管部品
の全体又は被接合部近傍をヒーターで加温し、一
定時間この温度を維持して、非発泡化処理する。 この場合、加温の程度、時間等は被接合部の形
状や大きさ等によつても異なるが、通常の場合、
200〜240℃で１〜３時間程度を目安として適宜決
定される。処理温度が比較的低い場合には、保持
時間を長めに設定し、逆に処理温度が比較的高い
場合には、保持時間は若干短かめでも十分に目的
を達し得る。この処理は、接合する部品の状態、
例えば保管期間即ち古さや保管状況等によつても
異なるため、適宜温度や時間を調節するのが好ま
しい。 加温は、短管、継手等の小物部品については、
全体を恒温炉に入れることにより容易に行なうこ
とができる。一方、比較的長さの長いパイプ等
は、第１図に示す如く、キヤツプ形のヒータ１を
パイプ２の被接合端に嵌め込み、パイプ２の外周
には適当な保温材３を取り付けて加温するのが有
利である。第１図に示す方法では、ヒータ１がパ
イプ２の端面にも当接するように構成されてお
り、パイプ内周面からの加温、外周面の保温と共
に、端面の加温も行なえるため、加温効率が良
い。勿論、加温はパイプ内周面からの加温、パイ
プ外周面からの加温、パイプ端面からの加温のい
ずれによる加温でも良い。 次に、接合する部品の被接合端面同志の間に隙
間が生じないように、端面を平滑に仕上げ処理す
る。即ち、被接合端面同志の間に隙間が生じる
と、十分に溶着することができなくなるため、隙
間なく当接可能に被接合端面を切削、研磨等の処
理を施すことにより、成形する。 この場合において、第２図に示す如く、パイプ
２の被接合端面２ａの内周側エツジ部を若干削り
落として面取りしておくのが好ましい。このよう
にすることにより、溶着の際のパイプ内周側の母
材の盛り上り（第４図ｃのＡの部分）を小さく
し、パイプの内周面を平滑化することができる。 こような成形処理を施した後は、溶着部に塵埃
等の夾雑物が混入しないように、被接合端面及び
その近傍を適当な溶剤等で拭き取り、表面を清浄
な状態とする。なお、上記の成形処理は非発泡化
処理の前に行なうことも可能であるが、非発泡化
処理後に成形処理を行なう方が、被接合端面の当
接をより良くすることができる。 以上の如き前処理を行なつた後、加熱溶融接合
を行なう。 加熱溶融接合に際しては、第３図に示す如く、
パイプ２と、これに接合する継手４等の部品の
各々の端面２ａ，４ａ間にヒータ５を配置し、ヒ
ータ５の輻射熱で両端面２ａ，４ａを加熱して、
被接合端面近傍を溶融させる。加熱溶融させる範
囲は、接合する部品の大きさ等によつても異なる
が、一般には、端面の数mm程度の範囲（第３図の
Ｂの範囲）にわたつて溶融された状態とする。 加熱溶融条件は接合する部品の大きさ、形状等
によつても異なるが、一般には、ヒータ５の表面
温度が高いほど、良好な溶融状態を得られる傾向
にある。第３図に示す方法においては、ヒータ５
の温度、ヒータ５とパイプ２又は継手４との距
離、加熱時間等を適宜選定することにより溶融の
程度を調節することができる。 加熱溶融後、ヒータ５を取り除く（第４図ａ）。
そして、溶融部２ｂ，４ｂを当接させ（第４図
ｂ）、更に押し付けて例えば数mm押し込み、パイ
プ２と継手４の材料同志を溶け込ませて一体化さ
せる。これにより、第４図ｃに示す如く、溶融接
合部Ａが盛り上る如くして接合されるが、前述の
如く面取りを施してあると、この盛り上りは極め
て小さくなるものとなる。 その後、溶融によつて変色していた材料が母材
と同色に戻るまで、溶融部を固定し、溶融部が冷
えて固まり、充分な強度になつた後、接合処理を
終了する。 なお、図示の例では、溶着により接合する場合
ついて示したが、本発明の方法は、溶接棒を用い
る溶接方法によつても同様にして、強固に接合す
ることができる。 以上、パイプの接合を例示して説明したが、本
発明の方法はパイプ等の配管部品に限らず、板状
部材等、あらゆるPEEK成形品に適用可能であ
る。 以下、具体的な実施例について説明する。 実施例 １（本発明例） 第１図〜第４図に示す方法に従つて、PEEK製
パイプ２５Ａの接合を行なつた。 非発泡化処理条件及び溶融条件は下記の通りと
した。 非発泡化処理条件 温度：240℃ 時間：２時間 溶融条件 ヒータ表面温度：570℃ ヒータとパイプ端面との距離：1.5mm 加熱時間：45sec 加熱溶融後、パイプ同志を押し付けて、1.5mm
押し込んだ。その後、溶融部の色が母材と同じ色
になつてから、更に30秒間固定した後、接合を終
了した。 得られた接合部材の引張強度を引張試験機によ
る破壊試験により測定し、結果を第１表に示し
た。 また、接合部の表面（内、外面）を観察し、結
果を第１表に記した。 実験例 ２（比較例） 加温による非発泡化処理を行なわなかつたこと
以外は、実験例１と同様にして接合を行ない、接
合部の強度を測定し、また接合部の表面を調べ
た。結果を第１表に示す。 第１表より、本発明の方法によれば、高強度で
良好な接合部材が得られることが明らかである。
【表】 ［発明の効果］ 以上詳述した通り、本発明のPEEK製部材の接
合方法は、PEEK製部材の加熱溶融接合に際し、
接合に先立ち、PEEK製部材の少なくとも被接合
部近傍を加温して非発泡化処理するものであつ
て、PEEK製部材を、溶着又は溶接により強固に
接合することが可能とされる。しか、接合部の表
面性状は極めて良好である。 このため、本発明の方法によれば、PEEK製パ
イプ、継手、バルブ等の配管部品、その他各種
PEEK製部材の施工が容易とされ、PEEK製装置
設備の設計、製作条件を大幅に拡大することが可
能とされる。
【図面の簡単な説明】
第１図〜第４図は本発明のPEEK製部材の接合
方法の一実施例を説明する図であつて、第１図は
部材の加温方法を説明する断面図、第２図は非接
合部の切削方法を説明する断面図、第３図は加熱
溶融方法を説明する正面図、第４図ａ〜ｃは溶融
接合手順を説明する断面図である。 １，５……ヒータ、２……パイプ、３……保温
材。

Claims (1)

  1. 【特許請求の範囲】 １ ポリエーテルエーテルケトン製部材の被接合
    部を加熱溶融させて接合する方法において、少な
    くとも被接合部近傍を加温して非発泡化処理した
    後、溶融接合することを特徴とするポリエーテル
    エーテルケトン製部材の接合方法。 ２ 少なくとも被接合部近傍を200〜240℃の温度
    に１〜３時間保持して非発泡化処理することを特
    徴とする特許請求の範囲第１項に記載の方法。 ３ ポリエーテルエーテルケトン製部材が、ポリ
    エーテルエーテルケトン製の配管部材であること
    を特徴とする特許請求の範囲第１項又は第２項に
    記載の方法。 ４ 配管部材の接合端面の内周側エツジ部を面取
    りした後接合することを特徴とする特許請求の範
    囲第３項に記載の方法。
JP62282348A 1987-11-09 1987-11-09 ポリエーテルエーテルケトン製部材の接合方法 Granted JPH01123728A (ja)

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Application Number Priority Date Filing Date Title
JP62282348A JPH01123728A (ja) 1987-11-09 1987-11-09 ポリエーテルエーテルケトン製部材の接合方法

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Application Number Priority Date Filing Date Title
JP62282348A JPH01123728A (ja) 1987-11-09 1987-11-09 ポリエーテルエーテルケトン製部材の接合方法

Publications (2)

Publication Number Publication Date
JPH01123728A JPH01123728A (ja) 1989-05-16
JPH0524818B2 true JPH0524818B2 (ja) 1993-04-09

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ID=17651244

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JP62282348A Granted JPH01123728A (ja) 1987-11-09 1987-11-09 ポリエーテルエーテルケトン製部材の接合方法

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Country Link
JP (1) JPH01123728A (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2713533B2 (ja) * 1992-10-20 1998-02-16 積水化学工業株式会社 管状端を有する熱可塑性樹脂成形品の突き合せ融着方法

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JPH01123728A (ja) 1989-05-16

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