JPS6021530B2 - 熱回復性合成樹脂成形体の製造方法 - Google Patents

熱回復性合成樹脂成形体の製造方法

Info

Publication number
JPS6021530B2
JPS6021530B2 JP53106199A JP10619978A JPS6021530B2 JP S6021530 B2 JPS6021530 B2 JP S6021530B2 JP 53106199 A JP53106199 A JP 53106199A JP 10619978 A JP10619978 A JP 10619978A JP S6021530 B2 JPS6021530 B2 JP S6021530B2
Authority
JP
Japan
Prior art keywords
heat
synthetic resin
molded body
recoverable
resin molded
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
Application number
JP53106199A
Other languages
English (en)
Other versions
JPS5534903A (en
Inventor
寛 西村
哲男 門馬
稔 吉田
一成 桐元
義雄 速水
俊夫 長沢
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.)
Furukawa Electric Co Ltd
Ube Corp
Original Assignee
Furukawa Electric Co Ltd
Ube 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 Furukawa Electric Co Ltd, Ube Industries Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP53106199A priority Critical patent/JPS6021530B2/ja
Priority to US06/068,761 priority patent/US4323607A/en
Priority to EP79301729A priority patent/EP0008912B1/en
Priority to DE7979301729T priority patent/DE2966521D1/de
Priority to CA000334425A priority patent/CA1136195A/en
Priority to SU792807712A priority patent/SU1482513A3/ru
Priority to BR7905632A priority patent/BR7905632A/pt
Priority to AU50482/79A priority patent/AU512641B2/en
Priority to ES79483794A priority patent/ES483794A1/es
Publication of JPS5534903A publication Critical patent/JPS5534903A/ja
Publication of JPS6021530B2 publication Critical patent/JPS6021530B2/ja
Expired 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
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3428—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding said at least a single wire having a waveform, e.g. a sinusoidal form
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0625—Preforms comprising incorporated or associated heating means
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding comprising several wires, e.g. in the form of several independent windings
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B29C65/348—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic with a polymer coating
    • 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
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/68—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
    • 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
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1248—Interpenetrating groove 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53241—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said 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
    • B29C66/70—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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7371—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 state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73715—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 state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
    • 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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7375—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 state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73753—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 state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized
    • B29C66/73754—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 state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized the to-be-joined areas of both parts to be joined being partially cured
    • 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
    • B29C66/7394—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 thermoset
    • B29C66/73941—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 thermoset characterised by the materials of both parts being thermosets
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3444—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip
    • B29C65/3452—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip forming a sleeve, e.g. a wrap-around sleeve
    • 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
    • B29C66/526—Joining bars
    • B29C66/5261—Joining bars for forming coaxial connections, i.e. the bars 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
    • B29C66/70—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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7377—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
    • B29C66/73775—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline
    • B29C66/73776—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 state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline the to-be-joined areas of both parts to be joined being crystalline
    • 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
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は、例えば管路継手部の防食材、電線接続保護材
などの用途に用いられる熱収縮性チューブ、熱収縮性シ
ートなどの熱回復性合成樹脂成形体の製造方法に関する
ものであって、糸状体又は紐状体の架橋合成樹脂で被覆
した可捺電気導体及び熱可塑性合成樹脂のいずれかを経
糸とし、他を緯糸として用いて形成した絹状体を発熱要
素として熱回復性合成樹脂薄葉材層内に挿入して外部熱
により一体化することを骨子とし、使用時における該成
形体の熱回復性が一様にかつ同時に得られる熱回復性合
成樹脂成形体を容易な方法により製造することを目的と
するものである。
従来より、所謂熱収縮性ないし熱回復性のチューブ、ス
リーブ、シートなどのプラスチック成形体が、管路継手
部の防食又は電線接続部保護などの目的で利用されてい
ることは周知である。
このような熱回復性プラスチック成形体を製造する方法
は種々知られているが、例えば架橋ポリエチレンシート
を１００００以上の高温度の状態で延伸し、延伸した状
態でのゴム弾性による張力を負荷したままで温度を下げ
、その結晶融点温度以下にすることによって、成形体の
内部に歪を残したままで固化させるものである。このよ
うにして得られた成形体は、常温ないし結晶融点温度以
下では長期に百つて自然に変形することはないが、結晶
融点温度以上に加熱されたとき架橋構造形成時の形状に
戻る性質を有している。このような熱回復性合成樹脂成
形体の形状は通常筒状、シート状若しくは他の異形成形
等多岐にわたっている。材質は架橋ポリエチレン、シリ
コンゴム、ＥＰＲ（エチレン・プロピレンゴム）等種々
のプラスチックが用いられているが、いずれもその結晶
融点温度以上に加熱されることにつて、予め成形体内部
に凍結されている歪が解放され、復元性を発現する性質
のものが用いられている。又、使用時熱回復を図る加熱
手段としては、種々の方法が提案されているが、ＬＰＧ
（液化石油ガス）等の火炎によって直接行われることが
多い。しかしながら、この道火加熱は手軽で作業時間も
短か〈て済む利点がある反面、作業者が熟練しているこ
とが必要であり、不用意に強い火で加熱するとこの熱回
復性合成樹脂成形体の表面が熱劣化し亀裂を生じたり、
さらには引火焼損することもある。特に、近年工業規模
が大型化するに伴ってこの熱回復性合成樹脂成形体が大
型化し、かつ作業環境も極寒地などの加熱に極めて不利
な条件下で使用される場合が多くなってきている。例え
ばこの熱回復性合成樹脂成形体の直径ｌｍを超えるよう
なスリーブの場合は、ＬＰＧガスバーナ−で加熱しよう
としても一度に加熱される面積は狭く、全体を一様に加
熱しようとすれば特殊な多頭式バーナーを使用するか、
若しくは多人数の作業者が一度に加熱作業を実施する必
要が生じる。特に、前述の直火による過熱を防止するこ
とのできる構造のバーナーはこの懐向が著しく、到底一
様な加熱は望めなかった。そして、熱回復貝０ち収縮が
不均一であると、被覆して形成した被覆層内の残留応力
が均一でなく、後日長期の使用における耐候・性、長期
劣化特性を害し、好ましくないものであることは容易に
理解されるところである。そこで、本発明の発明者らは
、熱回復性合成樹脂成形体の内部に発熱要素として可榛
性を有する電気導体を成形体の熱収縮を阻害しない状態
に内袋して、成形体自体の内部より熱を発生せしめるこ
とによって一様に、かつ同時に全体を加熱し、熱収縮せ
しめることのできる熱回復性合成樹脂成形体の製造方法
の開発に成功したものである。
即ち、本発明の熱回復性合成樹脂成形体の製造方法は、
予め架橋合成樹脂で被覆した糸状又は紐状の可蟻電気導
体と、熱可塑性合成樹脂からなる糸状又は紐状体の、い
ずれかを経糸とし他を緯糸として編製した網状物を発熱
要素として用意しておき、一方熱回復性合成樹脂成形体
の素材として通常用いられている架橋ポリエチレン、シ
リコンゴム、ＥＰＲ（エチレン・プロピレンゴム）など
を高温度の状態で延伸し、延伸した状態でのゴム弾性に
よる張力を負荷したままで温度を下げ、その結晶融点温
度以下にすることによって、内部に歪を残したままで固
化させる通常の工程を経て、好ましくはゲル分率６０〜
６５％を上限とするフィルム又はシートなどの薄葉材を
製造し、これを素材として所望の厚さ、形状の目的の熱
回復性合成樹脂成形体とする分だけ用意し、その積層過
程で略中間層間に前記網状物を発熱要素として介在積層
したのち、該積層物を、例えば、ドラムの周面上に、巻
き始めと巻き終わりをそれぞれ粘着テープで、加熱溶着
の熱によっても熱回復し得ない程度に強固に固定して、
緊密に巻き回し、この巻回物を外部熱例えば恒温加熱槽
内においてこれらを加熱溶着させて一体化するものであ
る。しかして、その可榛電気導体は、紬蓬銅線の撚線を
用いることが得られる成形体の可鏡性その他の点で好ま
しいが収縮の態様によっては銅合金線、ニッケル合金線
等を用いることもできる。
又、これら発熱用電気導体の絶縁被覆に用いる架橋合成
樹脂及び網状物の経糸、緯糸のいずれかとなる熱可塑性
合成樹脂糸状体又は紐状体を形成する熱可塑性合成樹脂
は、共に、前記成形体用薄葉材と実質的に熱接着性を有
し、かつゲル分率が２０〜６０％の範囲内のものが薄葉
材層間への接着性の点で好ましい。これらによって編製
した絹状物は、薄葉材の積層により形成された成形体の
全域若しくは必要個所の素材層間に介在積層された際に
、電気導体が成形体の熱収縮性を阻害しない状態でしか
も一様に均一に分布されていることが必要である。又、
この網状物を成型体の発熱要素として用いる理由は、次
の通りである。すなわち、発熱体としての電気導体は形
成された熱回復性合成樹脂成形体内において所定の密度
に分布するようにしなければ、該成形体の熱回復性が均
一かつ完全に得られないからであり、一様に分布させる
場合のほかに、必要に応じていくつかの部分に分けて、
同時に通電する場合があり、このような場合にも各分布
回路の抵抗値がよく揃っていなければならないが本発明
における如く発熱線と合成樹脂紐状体とで網状体となし
たものであればかかる目的を効率良く達成できるためで
ある。実際に合成樹脂被覆を施してない裸導体を用いて
の熱回復性合成樹脂成形体を製造してみると該導体は、
積層介在時においては一様に配列して成形体層間に介在
するのであるが、成形体自体が熱回復性の合成樹脂から
なっているため、成形体をつくる場合の薄葉積層物の一
体化のための外熱による加熱処理時に内部で導体がずれ
動く現象が起り、隣接する導体同志互いに接触する個所
ができたり、重なったり、断線したりすることがある。
そのため当該成形体の被被覆物体上への適用時に一部に
通電しない部分ができて熱収縮が一様でなくなったり、
特定の個所が強熱されたりする。そこで、これを回避す
るために本発明では導体に予め絶縁被覆を施しておいて
成形体層間へ介在積層させる方法を採用するものである
。又、この絶縁被覆及びそれと網状物を形成している合
成樹脂糸状、紐状体は、終局的には熱回復性合成樹脂成
形体の層間に積層された状態のままで該成形体の結晶融
点温度以上に加熱されることになるから、電気導体の絶
縁被覆として使用された合成樹脂は予め架橋されていな
いと加熱時に早期に溶融して了って所期の機能を示し得
ないことがある。この絶縁被覆は適度に架橋された耐熱
特性が高められていることが必要である。また合成樹脂
糸状体、紐状体は、無架橋ないし低架橋物であることが
好ましい。その理由は上の成形体が収縮する場合に十分
に流動性を発揮し収縮を妨げず、かつ積層成形時に内部
でのボィドの残留を減らし同時に全体の厚さを減らす効
果がある。さらに、成形体本体を構成する熱回復性合成
樹脂薄築材は、熱回復性を付与するために架橋されてい
ることが必要であるが、架橋度が過度であると前述の積
層一体化時に暦間落着が起り難くなり、一応落着したよ
うに見えても後刻加熱収縮させるときに層間剥離を起す
原因となる。
一般に、熱回復性を確実に発揮させるためには最低２０
％程度のゲル分率を必要とするものであり、熱溶着性の
点からゲル分率を６０〜６５％を上限とすることが好ま
しい。従って、上述の電気導体の絶縁被覆を形成してい
る架橋合成樹脂のゲル分率は、成形体を構成する薄葉材
のゲル分率が上記の如く６０〜６５％を上限とすること
から、これより低くしてそれぞれの未架橋分が互いに相
落し得るようにするために２０〜６０％範囲内とし、更
に好ましくは３０〜４５％とすることが成形体製造時の
加熱溶着操作の際の加圧によって流動乃至変形がなく被
覆厚さの変動が少なく、互いの被覆間若しくは被覆と成
形体との間に空隙を残すことがないなどの点で好ましい
。なお、この網状物を形成する被覆及び合成樹脂糸状、
紐状体の材質は、成形体と同一材質であることが特に好
ましいのは言うまでもない。又、絹状物を形成するには
、前記被覆電気導体と、合成樹脂糸状、紐状体の、いず
れかを隆糸とし、他を緯糸とすることにより電気導体の
重なりを回避することのほかは、通常の経、緯だけの単
純な織組織にするが、ここで重要なことは通電時の結線
を便利にするための耳部の線の折返し‘ま切断すること
なくそのままにしておくことが普通である。また、この
経、緯の考え方（織製する場合の）は実際に使用される
時の成形体の必要サイズと、織製に用いる機具の大きさ
等を勘案して適当に決定されるべきである。絹状物の形
成方法及びメッシュはこれを内装する薄葉材積層成形体
の収縮に要する温度と成形体材料の熱伝導率電気導体の
原線の種類と、使用環境とから決定される。なお、合成
樹脂糸状、紐状体は非架橋ポリエチレンを用いれば、網
状物を内装することに起因する厚さの影響、歪、空隙を
残さない点では好ましい、処理温度を高めるために低架
橋ポリエチレンを使用しても良いこの場合その最適ゲル
分率は３０〜３５％を上限とすることがより好ましい。
実施例 １ ０．１仇吻◇の銅線７本を撚り合わせてなる導体上にポ
リエチレン被覆を施して外径０．６５肋の被覆電線とし
、これに放射線を照射して架橋しゲル分率４２％とした
。
この架橋ポリエチレン被覆電線を経糸とし、縞糸に０．
３５肌０のポリエチレンテグスを用いて網状物を形成し
た。各糸のピッチは経、緯共５肋であった。一方用意さ
れた外径１５０仇舷０の巻芯上に、ゲル分率４８％、フ
ィルム厚さ０．１５側、収縮率３５％の架橋ポリエチレ
ンフィルムを成形体素材として４層巻付けたところでそ
の上へ上記の絹状物を編込んだ絶縁電線が収縮方向と直
角に位置するように一層だけ巻付け、しかるのち再びそ
の上に上記の架橋ポリエチレンフィルムを４層巻付けた
後、これを直温層で２００℃×４ぴ分加熱して各層間を
溶着させ、冷却後巻芯を除いてチューフ状物を得た。而
して得たチューブ状物にあっては、電気導体上の被覆ポ
リエチレン及びポリエチレンテグスは完全に溶融し、素
材架橋ポリエチレンフィルムと実質的に一体となり、隙
間を生じることがなかった。次に而して得たチューブ状
物中の電気導体を１２区分に均等に分けてそれぞれ並列
に給電し、合計１１０Ａを通電した。
端子電圧は１２０Ｖであった。約５分間の通電によって
チューブ状成形体は完全に熱収縮した。熱収縮は全周に
わたり一様であった。また焼け焦げなどを生じることも
なかった。実施例 ２上記実施例１の架橋ポリエチレン
被覆電線の代りに０．０８柵◇軟銅線×１７ケ撚のポリ
ウレタンエナメル嫌付絶縁電線を用い、実施例１と同一
条件でチューブ状物を得た。
このとき被覆ポリウレタン及びポリエチレンテグスは素
材架橋ポリエチレンと実質的に一体となり、隙間を生じ
ることがなかった。このチューブ状成形体を実施例１と
同一条件で通電したところ、熱収縮は全周にわたり一様
であった。以上本発明の熱回復性合成樹脂成形体の製造
法によれば架橋合成樹脂を被覆した電気導体を均一に分
布し得る網状物とし、これを発熱要素として熱回復性合
成樹脂層間に介在させるものであるから、製造が極めて
容易であって、かつその分布密度、電気導体の蓬等を適
宜選択することにより、その発熱量を調整することも可
能である。

Claims (1)

    【特許請求の範囲】
  1. １ 架橋合成樹脂で被覆した糸状又は紐状の可撓電気導
    体と、糸状又は紐状の熱可塑性合成樹脂の、いずれかを
    経糸とし他を緯糸として用いて形成せしめた網状物を発
    熱要素として、熱回復性合成樹脂薄葉材の層間に介在積
    層したのち、該積層物を固定し、外部熱により加熱して
    一体化することを特徴とする熱回復性合成樹脂成形体の
    製造方法。
JP53106199A 1978-09-01 1978-09-01 熱回復性合成樹脂成形体の製造方法 Expired JPS6021530B2 (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP53106199A JPS6021530B2 (ja) 1978-09-01 1978-09-01 熱回復性合成樹脂成形体の製造方法
US06/068,761 US4323607A (en) 1978-09-01 1979-08-23 Heat shrinkable covers
EP79301729A EP0008912B1 (en) 1978-09-01 1979-08-23 Heat shrinkable covers
DE7979301729T DE2966521D1 (en) 1978-09-01 1979-08-23 Heat shrinkable covers
CA000334425A CA1136195A (en) 1978-09-01 1979-08-24 Heat shrinkable covers
SU792807712A SU1482513A3 (ru) 1978-09-01 1979-08-31 Покрытие из термоусаживающейс полиэтиленовой пленки
BR7905632A BR7905632A (pt) 1978-09-01 1979-08-31 Cobertura de resina sintetica termicamente contratil
AU50482/79A AU512641B2 (en) 1978-09-01 1979-08-31 Heat shrinkable covers
ES79483794A ES483794A1 (es) 1978-09-01 1979-08-31 Envoltura de resina sintetica termocontraible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53106199A JPS6021530B2 (ja) 1978-09-01 1978-09-01 熱回復性合成樹脂成形体の製造方法

Publications (2)

Publication Number Publication Date
JPS5534903A JPS5534903A (en) 1980-03-11
JPS6021530B2 true JPS6021530B2 (ja) 1985-05-28

Family

ID=14427492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53106199A Expired JPS6021530B2 (ja) 1978-09-01 1978-09-01 熱回復性合成樹脂成形体の製造方法

Country Status (2)

Country Link
JP (1) JPS6021530B2 (ja)
SU (1) SU1482513A3 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100374364B1 (ko) * 2000-11-28 2003-03-04 한국기계연구원 단열패널의 건조 및 제조방법
RU2478480C1 (ru) * 2012-03-19 2013-04-10 Открытое акционерное общество "Научно-исследовательский институт "Кулон" Многослойная пластина устройства для стерильного соединения (сварки) полимерных магистралей из термопластичных материалов полимерных контейнеров

Also Published As

Publication number Publication date
SU1482513A3 (ru) 1989-05-23
JPS5534903A (en) 1980-03-11

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