NO145048B - Elektrisk oppvarmbar sveisemuffe og fremgangsmaate til fremstilling av samme. - Google Patents

Elektrisk oppvarmbar sveisemuffe og fremgangsmaate til fremstilling av samme. Download PDF

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Publication number
NO145048B
NO145048B NO764227A NO764227A NO145048B NO 145048 B NO145048 B NO 145048B NO 764227 A NO764227 A NO 764227A NO 764227 A NO764227 A NO 764227A NO 145048 B NO145048 B NO 145048B
Authority
NO
Norway
Prior art keywords
sleeve
welding
lips
pipes
wall
Prior art date
Application number
NO764227A
Other languages
English (en)
Other versions
NO764227L (no
NO145048C (no
Inventor
Paul Staehli
Original Assignee
Geberit Ag
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 Geberit Ag filed Critical Geberit Ag
Publication of NO764227L publication Critical patent/NO764227L/no
Publication of NO145048B publication Critical patent/NO145048B/no
Publication of NO145048C publication Critical patent/NO145048C/no

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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
    • B29C66/90—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
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91218—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods using colour change, e.g. using separate colour indicators
    • 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
    • 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
    • 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
    • B29C66/1222—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 lapped 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
    • B29C66/01—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
    • 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
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • 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
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

Den foreliggende oppfinnelse vedrører en elektrisk oppvarmbar sveisemuffe av termoplastisk materiale til sammenføyning av plastrør, omfattende.en i muffen anbrakt varmetrådvikling hvis ender er ført utad for tilkopling til en strømkilde og med fjærende lepper for fiksering av rørene som er innskjøvet i muffen før sveising.
Mellom plastrør og muffer som er anordnet for sammenføy-ning av rørene,foreligger det relativt store, produksjonsbe-tingete toleranseforskjeller. Dersom toleransene^blir holdt for snevre kan det forekomme at det for enkelte rørs vedkommende er besværlig å anbringe dem i muffen, slik at dette må foretas f.eks. ved innslåing, noe som er en ulempe. Ved for vide toleranser er ikke rørene sentrert i muffen og kan lett bli liggende skrått, noe. som fører til dårlige sveiseforbindelser. Også ved sammenbygging av et rørsystem ville det være fordelaktig dersom rørene før sveisingen ville sitte godt i muffene og bli holdt i nøyaktig flukt med hverandre gjennom disse.
Fra US-patentskrift 3.052.926 er det kjent å anvende slike innledningsvis nevnte fjærende lepper, av metall, for å fiksere et legeme i et annet. Leppene er fremstilt av et annet materiale enn materialet i den vegg de er festet til og er skrudd eller naglet til denne.
Sveisemuffen ifølge den foreliggende oppfinnelse er kjenne-tegnet ved at de fjærende lepper er utformet i ett med muffelegemet ved langsgående innsnitt i muffens innervegg.
Derved blir det ikke nødvendig å anvende andre materialer enn det som allerede finnes i muffeveggen, og nagleforbindelser etc., unngås.
Oppfinnelsen vedrører også en fremgangsmåte til fremstilling av sveisemuffen. Denne kjennetegnes ved at det i muffens innervegg stikkes langsgående innsnitt, hvorved materialet som trenges
ut av innsnittene danner de fjærende lepper.
En utførelsesform av sveisemuffen vil bli nærmere forklart i det etterfølgende under henvisning til de medfølgende teg-ninger, hvori: Fig. 1 viser et langsgående snitt gjennom sveisemuffen. Fig. 2 viser et radialsnitt gjennom sveisemuffens vegg i større målestokk. Fig. 1 viser en elektrisk oppvarmbar sveisemuffe i form av et sylindrisk legeme 1 av en termoplast, f.eks. polyetylen. Legemets innervegg 2 er utformet med et skruelinjeformet spor 3 hvori en varmetrådvikling 4 er innlagt. Varmetrådens ender er ført utad gjennom to radiale boringer 5 og forbundet med to kontaktstykker 6 som på sin side er avskjermet ved hjelp av to bokser 7.
Fremstillingen av muffen foregår med relativt snevre toleranser. Derimot oppviser de fleste plastrør som fremstilles ved ekstruksjon relativt store forskjeller i diameter, noe som vanskeliggjør påskyvingen av muffen på endene av rørene dersom pasningen er for trang, eller til en for løs forbindelse, dersom pasningen er for vid. Dermed blir sammenbyggingen av enkelte rør til et rørsystem vanskeliggjort, rørene er ikke sentrert i muffene og sammensveisingen er ujevn. For å hindre dette stikkes det i innerveggen 2 langsgående innsnitt 8 på slik måte at materiale som fortrenges ut av innsnittene rager innad og danner langsgående lepper 9. Dybden av innsnittene 8 velges selvfølgelig slik at motstandstråden 4, som er innlagt i sporene 3, ikke skades. Innsnittene trekkes hensiktsmessig slik at leppene 9 er anordnet med jevn avstand på innerveggen.
Ved hjelp av disse lepper blir rør 11, som er skjøvet inn i muffen fra begge sider til en anslagsring 10, holdt med full-god pasning og nøyaktig sentrert. Rørenes avstand til muffens innervegg er jevn, noe som sikrer en bedre sveiseforbindelse. Forsøk har vist at leppene er tilstrekkelig elastisk til å bevirke at forbindelsen holder godt, selv etter flere gangers overskyvning av muffen.
For fremstilling av den uløselige forbindelse oppvarmes muffen på kjent måte ved hjelp av varmetråden, noe som bevirker krymping av muffen og sveising av innerveggen til rørendene.
Som kontroll for at sveisingen har foregått riktig har det vist seg hensiktsmessig å anbringe en varmeindikator på muffen. Denne i og for seg kjente indikator, f.eks. av papir eller plast, klebes hensiktsmessig godt synlig på muffen ved siden av boksene. Ved hjelp av den blivende farging av indikatoren lar det seg fastslå om den riktige sveisetemperatur er oppnådd.
Idet ved sammenbygging av rørsystemer de enkelte rør-stykker og muffer i de fleste tilfeller først sammenføyes løst for deretter å sveises sammen gruppevis, kan det ved hjelp av indikatoren fastslås hvilke forbindelser som allerede er sveist og hvilke som må sveises. På denne måte kan ufordelaktig dobbelsveising unngås, og det fremgår straks om et sveisested er blitt glemt eller ikke. Fargeindikatoren kan f.eks. være utstyrt med et hvitt punkt som blir mørkere med økende tem-peratur og blir svart ved oppnåelse av en sluttemperatur på ca. 240-250°C.

Claims (2)

1. Elektrisk oppvarmbar sveisemuffe (1) av termoplastisk materiale til sammenføyning av plastrør (11), omfattende en i muffen anbrakt varmetrådvikling (4) hvis ender er ført utad for tilkopling til en strømkilde og med fjærende lepper (9) for fiksering av rørene (11) som er innskjøvet i muffen før sveising, karakterisert ved at de fjærende lepper (9) er utformet i ett med muffelegemet ved langsgående innsnitt (8) i muffens innervegg (2).
2. Fremgangsmåte til fremstilling av sveisemuffen (1) ifølge krav 1, karakterisert ved at det i muffens innervegg (2) stikkes langsgående innsnitt (8), hvorved materialet som trenges ut av innsnittene danner de fjærende lepper (9)-
NO764227A 1975-12-18 1976-12-14 Elektrisk oppvarmbar sveisemuffe og fremgangsmaate til fremstilling av samme. NO145048C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1641675A CH606895A5 (no) 1975-12-18 1975-12-18

Publications (3)

Publication Number Publication Date
NO764227L NO764227L (no) 1977-06-21
NO145048B true NO145048B (no) 1981-09-21
NO145048C NO145048C (no) 1982-01-04

Family

ID=4417181

Family Applications (1)

Application Number Title Priority Date Filing Date
NO764227A NO145048C (no) 1975-12-18 1976-12-14 Elektrisk oppvarmbar sveisemuffe og fremgangsmaate til fremstilling av samme.

Country Status (14)

Country Link
US (1) US4147926A (no)
AT (1) AT350342B (no)
BE (1) BE849569A (no)
CA (1) CA1039770A (no)
CH (1) CH606895A5 (no)
DE (2) DE2656850C2 (no)
DK (1) DK571176A (no)
FI (1) FI65482C (no)
FR (1) FR2335325A1 (no)
IT (1) IT1065429B (no)
LU (1) LU76413A1 (no)
NL (1) NL7614100A (no)
NO (1) NO145048C (no)
SE (1) SE7614212L (no)

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DK2617913T3 (en) 2012-01-23 2017-01-09 Vastint Hospitality B V Prefabricated PANEL TO A BUILDING
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UA115775C2 (uk) 2012-01-23 2017-12-26 Вастінт Хоспіталіті Б.В. Збірний модуль для будівлі
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Publication number Publication date
CA1039770A (en) 1978-10-03
SE7614212L (sv) 1977-06-19
NO764227L (no) 1977-06-21
FI65482C (fi) 1984-05-10
AT350342B (de) 1979-05-25
DE2656850A1 (de) 1977-06-30
US4147926A (en) 1979-04-03
BE849569A (fr) 1977-04-15
NL7614100A (nl) 1977-06-21
DE7639283U1 (de) 1977-04-07
DK571176A (da) 1977-06-19
FR2335325A1 (fr) 1977-07-15
FI65482B (fi) 1984-01-31
NO145048C (no) 1982-01-04
IT1065429B (it) 1985-02-25
LU76413A1 (no) 1977-06-10
FI763608A (no) 1977-06-19
CH606895A5 (no) 1978-11-15
ATA940776A (de) 1978-10-15
DE2656850C2 (de) 1985-04-18
FR2335325B3 (no) 1979-08-24

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