FI68189B - Foerfarande foer tillverkning av roerfoerbindning eller -muff och roerfoerbindning eller -muff - Google Patents
Foerfarande foer tillverkning av roerfoerbindning eller -muff och roerfoerbindning eller -muff Download PDFInfo
- Publication number
- FI68189B FI68189B FI771113A FI771113A FI68189B FI 68189 B FI68189 B FI 68189B FI 771113 A FI771113 A FI 771113A FI 771113 A FI771113 A FI 771113A FI 68189 B FI68189 B FI 68189B
- Authority
- FI
- Finland
- Prior art keywords
- sealing ring
- sleeve
- casting core
- connector
- tubular
- Prior art date
Links
Classifications
-
- 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
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14598—Coating 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
- B29C2045/1659—Fusion bonds
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
- B29C2045/1664—Chemical bonds
-
- 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
- B29L2031/24—Pipe joints or couplings
-
- 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
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Gasket Seals (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Joints Allowing Movement (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Claims (9)
1. Förfarande för tillverkning av rörförbindning eller -muff, där det f inns ett rörformigt plastorgan (1), i vars ända det finns en i denna fastgjuten tätningsring (2), som är fäst vid den inre ytan av det rörformiga organet med hjälp av en stativdel (4) och där det finns en smalare tätande kant (5), som sträcker sig en bit tvärs over den inre delen av förbindningsholken eller -muffen, kännetecknat därav, att tätningsringen (2) tryckgjutes i en första formhalighet, som begränsas av ett spär i gjutkärnan (21,22) och motstaende avskiljbara formavsnitt (23,24), man avskiljer formavsnitten och ästadkonnner en axial relativ rörelse av gjutkärnan och formavsnitten varvid den gjutna tätningsringen halls i splret i gjutkärnan, för formavsnitten (23,24) ihop för att tillsammans med gjutkärnan (21,22) och tätningsringen (2) forma en rörformig andra formhSlighet, tryckgjuter det rörformiga plastorganet (1) i den andra formhäligheten, avskiljer formavsnitten och drar bort gjutkärnan i axelns riktning frän den gjutna förbindningen eller -muffen, varvid tätningsringen pl i och för sig känt sätt ändrar form genom inverkan av gjutkärnan vid bortdragningen av denna.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att man använder en gjutkärna, där det finns tvl gjutkärnsorgan (21,22) bredvid varandra i axelns riktning, mellan vilka det finns ett spar för gjutningen av tätningsringen, och att dessa gjutkärnsorgan (21,22) efter gjutningen av det rörformiga organet avskiljs fran varandra i axial riktning och att gjutkärnan efter detta dras bort fran den gjutna muffen eller förbindningen.
3. Förfarande enligt patentkravet 1 eller 2, vid vilket tätningsringen fram-· ställs av en termoplastisk elastomer, kännetecknat därav, att den termpolastiska elastomerens motstlndsförmaga mot härdning under press förbättras med tvärblndningar Istadkommande stralningsbehandling.
4. Rörmuff eller -förbindning, där det finns ett rörformigt tryckgjutet plastorgan (1), i vars ända det finns en i denna fastgjuten tätningsring (2), som är fäst vid den inre ytan av det rörformiga organet med hjälp av en stativdel (4) och där det finns en smalare tätande kant (5), som sträcker sig en bit tvärs över den inre delen av förbindningsholken eller -muffen, k ä n n e -t e c k n a d därav, att den inre diametern av det rörformiga organet (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB13936/76A GB1572099A (en) | 1976-04-06 | 1976-04-06 | Manufacture of pipe couplings |
GB1393676 | 1976-04-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI771113A FI771113A (sv) | 1977-10-07 |
FI68189B true FI68189B (fi) | 1985-04-30 |
FI68189C FI68189C (fi) | 1985-08-12 |
Family
ID=10032068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI771113A FI68189C (fi) | 1976-04-06 | 1977-04-06 | Foerfarande foer tillverkning av roerfoerbindning eller -muff och roerfoerbindning eller -muff |
Country Status (21)
Country | Link |
---|---|
US (1) | US4173362A (sv) |
JP (1) | JPS52151351A (sv) |
AU (1) | AU509881B2 (sv) |
BE (1) | BE853292R (sv) |
BR (1) | BR7702228A (sv) |
CA (1) | CA1069152A (sv) |
CS (1) | CS213302B2 (sv) |
DD (1) | DD134214A6 (sv) |
DE (1) | DE2715525C2 (sv) |
DK (1) | DK150077A (sv) |
ES (2) | ES457651A2 (sv) |
FI (1) | FI68189C (sv) |
FR (1) | FR2347172A2 (sv) |
GB (1) | GB1572099A (sv) |
IE (1) | IE44666B1 (sv) |
IT (1) | IT1126789B (sv) |
NL (1) | NL184264C (sv) |
NZ (1) | NZ183805A (sv) |
SE (1) | SE7703965L (sv) |
SU (1) | SU743597A3 (sv) |
ZA (1) | ZA772138B (sv) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1572100A (en) * | 1977-06-10 | 1980-07-23 | Hepworth Iron Co Ltd | Plastics pipe couplings |
CH643047A5 (de) * | 1978-10-18 | 1984-05-15 | Battenfeld Maschfab | Verfahren zum herstellen von fittings fuer rohrverbindungen sowie werkzeug zur ausuebung des verfahrens und nach diesem verfahren hergestelltes fitting. |
DE2845308C3 (de) * | 1978-10-18 | 1982-02-18 | Battenfeld Maschinenfabriken Gmbh, 5882 Meinerzhagen | Fitting oder dergleichen aus formstabilem Kunststoff für Rohrverbindungen sowie Verfahren und Werkzeug zu seiner Herstellung |
FR2447261A1 (fr) * | 1979-01-25 | 1980-08-22 | Lincrusta | Procede de fabrication d'un tube mince moule comportant des renforts epais |
NL7909294A (nl) * | 1979-12-21 | 1981-07-16 | Wavin Bv | Werkwijze voor het verenigen van een fixatiedeel en een afdichtlichaam voor een buisverbinding. |
NL7909293A (nl) * | 1979-12-21 | 1981-07-16 | Wavin Bv | Werkwijze voor het aanbrengen van een afdichtlichaam in een groef van een mof. |
NL8103011A (nl) * | 1981-06-22 | 1983-01-17 | Dirk Van Manen | Werkwijze voor het door spuitgieten vervaardigen van kunststofhulpstukken met koppelingsmof voor buizen, alsmede inrichting voor het toepassen van de werkwijze. |
DE3402046A1 (de) * | 1984-01-21 | 1985-08-01 | Heinrich 4180 Goch Michel | Verfahren und vorrichtung zur herstellung eines rostartigen kunststoff-gitterelements sowie rostelement aus kunststoff |
FR2579129B1 (fr) * | 1985-03-22 | 1987-08-28 | Cartier Ind | Moule d'injection a coulisseaux pour la production de pieces composites |
EP0221166A4 (en) * | 1985-05-06 | 1988-04-18 | Vinidex Tubemakers Pty Ltd | PIPE CONNECTION. |
GB8516613D0 (en) * | 1985-07-01 | 1985-08-07 | Naylor Bros Clayware Ltd | Pipe connector |
GB8517073D0 (en) * | 1985-07-05 | 1985-08-14 | Hepworth Iron Co Ltd | Pipe pipe couplings &c |
IT1189758B (it) * | 1986-05-26 | 1988-02-04 | Fip Formatura Inienzione Poli | Dispositivo per la formatura di prodotti termoplastici dotati di sotto squadro |
FR2612118B1 (fr) * | 1987-03-09 | 1989-06-16 | Draka Polva Bv | Raccord pour tuyauterie en resine a base de chlorure de vinyle comprenant un anneau d'etancheite en caoutchouc thermoplastique |
DE3717750A1 (de) * | 1987-05-26 | 1988-12-15 | Rehau Ag & Co | Verfahren zum einspritzen eines elastischen dichtringmaterials in die ringnut einer verbindungsmuffe |
JPH01190988A (ja) * | 1988-01-22 | 1989-08-01 | Matsushita Electric Ind Co Ltd | 圧縮機 |
SE8800348L (sv) * | 1988-02-03 | 1989-08-04 | Forsheda Ab | Taetningsring och verktyg foer framstaellning daerav |
US5251954A (en) * | 1992-01-31 | 1993-10-12 | Starcade, Inc. | Plastic vehicle cowling with integrally molded seal |
FR2700195B1 (fr) * | 1993-01-07 | 1995-03-17 | Hutchinson | Raccord étanche d'un tube et d'un embout et son procédé de fabrication. |
US5462313A (en) * | 1993-10-26 | 1995-10-31 | Form Rite Corporation | Quick connect coupling |
US5542717A (en) * | 1994-01-03 | 1996-08-06 | Form Rite, Corporation | Quick connect coupling |
US5573279A (en) * | 1994-01-03 | 1996-11-12 | Form Rite Corporation | Quick connect coupling |
SI0691506T1 (en) * | 1994-07-08 | 1999-04-30 | Hobas Engineering Ag | Sleeve for connecting two plastic pipes |
NL9401456A (nl) * | 1994-09-08 | 1996-04-01 | Skf Ind Trading & Dev | Werkwijze voor het vervaardigen van een kunststof bevattend onderdeel voor een wentellager, wentellager voorzien van een dergelijk kunststof onderdeel en op een matrijs voor het toepassen van de werkwijze. |
US6220969B1 (en) * | 1998-08-14 | 2001-04-24 | St. Louis Stamping Inc. | Clampless universal joint and boot assembly |
DE19906870C1 (de) * | 1999-02-18 | 2000-05-11 | Hummel Anton Verwaltung | Anschlußarmatur mit einem Armaturkörper mit drehbarer Befestigung |
GB0006662D0 (en) * | 2000-03-21 | 2000-05-10 | Millan David R | Pipe end seal. (internal). |
US6953526B1 (en) * | 2000-03-22 | 2005-10-11 | Cuno Incorporated | Filter assembly |
GB2381050B (en) * | 2001-10-18 | 2005-01-12 | Mckechnie Engineered Plastics | Pipe coupling |
JP3706840B2 (ja) * | 2002-03-28 | 2005-10-19 | 森六株式会社 | シール付き外装部材の製造方法 |
ITMI20030645A1 (it) * | 2003-04-01 | 2004-10-02 | Inset S P A | Sistema di raccordi per connessione di elementi protettivi |
EP2039491A1 (de) * | 2007-09-19 | 2009-03-25 | ifm Manfred Otte GmbH | Verfahren zum Einbringen einer Dichtung eines Steckverbindungsteiles |
US8727387B2 (en) * | 2008-05-27 | 2014-05-20 | Springseal, Inc. | Pipe coupling assembly |
IT1393549B1 (it) * | 2009-04-03 | 2012-04-27 | Coes S P A | Giunzione per il collegamento a tenuta idraulica di tubi o raccordi, particolarmente in polipropilene, per impianti idraulici a bassa pressione. |
JP5882083B2 (ja) * | 2011-03-30 | 2016-03-09 | クボタシーアイ株式会社 | 多層射出成形品および管継手 |
US8801049B2 (en) | 2011-04-29 | 2014-08-12 | Springseal, Inc. | Pipe coupling system and method |
USD668410S1 (en) | 2011-11-11 | 2012-10-02 | Telebrands Corp. | Vacuum cleaner attachment adapter |
JP6236942B2 (ja) * | 2013-07-10 | 2017-11-29 | 富士通株式会社 | 配管接続構造、冷却システム、及び、電子機器 |
USD917027S1 (en) | 2019-12-18 | 2021-04-20 | Lasalle Bristol Corporation | Non-return device valve support member |
USD924378S1 (en) | 2019-12-18 | 2021-07-06 | Lasalle Bristol Corporation | Non-return device valve member |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2226408A (en) * | 1936-07-21 | 1940-12-24 | New Brunswick Die Molding Corp | Apparatus for manufacturing compound molded bodies |
DE1218140B (de) * | 1955-06-15 | 1966-06-02 | Sued West Chemie Gmbh | Verbindungs-Formstueck aus Kunststoff |
US3016579A (en) * | 1957-12-27 | 1962-01-16 | Smith Corona Marchant Inc | Method of molding indicia wheels |
US3198559A (en) * | 1960-05-11 | 1965-08-03 | Douglas Aircraft Co Inc | Flexible coupling for rigid members |
AT269007B (de) * | 1965-05-15 | 1969-03-10 | Deutsche Steinzeug | Muffenrohrdichtung für Steinzeugkanalisationsrohre |
US3368830A (en) * | 1967-05-10 | 1968-02-13 | Johns Manville | Pipe joint |
BE719782A (sv) * | 1968-08-22 | 1969-02-03 | ||
US3555606A (en) * | 1968-09-16 | 1971-01-19 | Reflex Corp Canada Ltd | Molding apparatus for making one-piece plastic caps for containers |
US3563574A (en) * | 1969-01-28 | 1971-02-16 | Certain Teed Prod Corp | Coupling for plastic pipe |
GB1236907A (en) * | 1969-02-25 | 1971-06-23 | Hepworth Iron Co Ltd | Improvements in or relating to pipe couplings |
DE2157015C2 (de) * | 1971-11-17 | 1982-04-01 | Industriewerk Schaeffler Ohg, 8522 Herzogenaurach | Verfahren zur Herstellung einer Dichtung aus spritzbarem Werkstoff |
US3744806A (en) * | 1971-11-22 | 1973-07-10 | Price Brothers Co | Pipe joint seal |
US3915613A (en) * | 1973-04-09 | 1975-10-28 | Obrist Ag Albert | Apparatus for molding plastic covers for containers |
GB1389773A (en) | 1973-09-11 | 1975-04-09 | Hepworth Iron Co Ltd | Pipe couplings |
US3924881A (en) * | 1975-01-22 | 1975-12-09 | Johns Manville | Injection molded plastic pipe fitting |
US3989787A (en) * | 1975-07-28 | 1976-11-02 | Phillips Petroleum Company | Method of rotational molding a thermosetting article with a thermoplastic insert |
US4120521A (en) * | 1975-08-28 | 1978-10-17 | Rieber & Son Plastic-Industri A/S | Combined mould element and sealing ring |
US4070044A (en) * | 1976-01-22 | 1978-01-24 | Phillips Petroleum Company | Polymer pipe connection and method to make it |
US4014556A (en) * | 1976-03-03 | 1977-03-29 | Clow Corporation | Sealing ring means for pipe couplings |
US4116474A (en) * | 1976-04-09 | 1978-09-26 | Wolf Franz Josef | Pipe coupling |
-
1976
- 1976-04-06 GB GB13936/76A patent/GB1572099A/en not_active Expired
-
1977
- 1977-04-04 US US05/784,314 patent/US4173362A/en not_active Expired - Lifetime
- 1977-04-05 DK DK150077A patent/DK150077A/da not_active IP Right Cessation
- 1977-04-05 IT IT67755/77A patent/IT1126789B/it active
- 1977-04-05 SE SE7703965A patent/SE7703965L/sv unknown
- 1977-04-05 DD DD77198259A patent/DD134214A6/xx unknown
- 1977-04-06 NL NLAANVRAGE7703767,A patent/NL184264C/xx not_active IP Right Cessation
- 1977-04-06 DE DE2715525A patent/DE2715525C2/de not_active Expired
- 1977-04-06 SU SU772467851A patent/SU743597A3/ru active
- 1977-04-06 ES ES457651A patent/ES457651A2/es not_active Expired
- 1977-04-06 BR BR7702228A patent/BR7702228A/pt unknown
- 1977-04-06 NZ NZ183805A patent/NZ183805A/xx unknown
- 1977-04-06 IE IE734/77A patent/IE44666B1/en unknown
- 1977-04-06 CA CA275,671A patent/CA1069152A/en not_active Expired
- 1977-04-06 AU AU24056/77A patent/AU509881B2/en not_active Expired
- 1977-04-06 FI FI771113A patent/FI68189C/fi not_active IP Right Cessation
- 1977-04-06 FR FR7710414A patent/FR2347172A2/fr active Granted
- 1977-04-06 BE BE2055806A patent/BE853292R/xx active
- 1977-04-06 ZA ZA00772138A patent/ZA772138B/xx unknown
- 1977-04-06 JP JP3937277A patent/JPS52151351A/ja active Granted
- 1977-04-06 CS CS772278A patent/CS213302B2/cs unknown
-
1978
- 1978-10-02 ES ES1978238508U patent/ES238508Y/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1069152A (en) | 1980-01-01 |
FR2347172B2 (sv) | 1982-11-12 |
GB1572099A (en) | 1980-07-23 |
FI68189C (fi) | 1985-08-12 |
IT1126789B (it) | 1986-05-21 |
IE44666B1 (en) | 1982-02-10 |
ES457651A2 (es) | 1979-10-01 |
AU2405677A (en) | 1978-10-12 |
FI771113A (sv) | 1977-10-07 |
DE2715525A1 (de) | 1977-10-20 |
ZA772138B (en) | 1978-11-29 |
SU743597A3 (ru) | 1980-06-25 |
JPS6159894B2 (sv) | 1986-12-18 |
ES238508U (es) | 1979-05-16 |
AU509881B2 (en) | 1980-05-29 |
IE44666L (en) | 1977-10-06 |
FR2347172A2 (fr) | 1977-11-04 |
ES238508Y (es) | 1979-12-16 |
BE853292R (fr) | 1977-10-06 |
SE7703965L (sv) | 1977-10-07 |
US4173362A (en) | 1979-11-06 |
BR7702228A (pt) | 1978-01-17 |
NL7703767A (nl) | 1977-10-10 |
DK150077A (da) | 1977-10-07 |
DD134214A6 (de) | 1979-02-14 |
DE2715525C2 (de) | 1986-04-30 |
NL184264C (nl) | 1989-06-01 |
NZ183805A (en) | 1979-06-08 |
JPS52151351A (en) | 1977-12-15 |
CS213302B2 (en) | 1982-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI68189B (fi) | Foerfarande foer tillverkning av roerfoerbindning eller -muff och roerfoerbindning eller -muff | |
FI83486C (sv) | Förfarande för framställning av ett speciellt i rörskarvar användbart tätningsstycke och form för framställning av tätningsstycket | |
US4708614A (en) | Injection molds for the manufacture of composite bodies | |
IE42251B1 (en) | Improvements relating to the manufacture of pipe couplings | |
JPS62181125A (ja) | 管継手の製造方法及び製造装置 | |
US3557278A (en) | Method for forming a socket shaped end on plastic pipes | |
US6284172B1 (en) | Rapid moulding of long concrete poles | |
ES539634A0 (es) | Procedimiento de fabricar una pieza tubular en un tambor ro-tatorio de moldeo y perfeccionamientos en los tubos compues-tos asi fabricados | |
CA1152275A (en) | Injection moulding process and apparatus | |
CN113508022B (zh) | 树脂管的制造方法 | |
CN116021803A (zh) | 一种多腔梁的制备模具及制备方法 | |
JPH0150797B2 (sv) | ||
NO870796L (no) | Fremgangsmte til fremstilling av et kompositt-r og anor dning til fremstilling av dette. | |
GB2048348A (en) | Insulated window or door frame | |
JPH07156192A (ja) | ライニング管の製造方法 | |
JPS6243865B2 (sv) | ||
SU1728036A1 (ru) | Способ изготовлени напорной трубы со стальным цилиндром | |
NL7809777A (nl) | Werkwijze en inrichting voor het vervaardigen van een buisstuk voorzien van een afdichtring. | |
AU715696B2 (en) | Rapid moulding of long concrete poles | |
RU2003105223A (ru) | Способ изготовления гусениц и устройство для извлечения из формы | |
JP2727722B2 (ja) | 多色成形品の成形方法及び成形用金型 | |
JPS59143627A (ja) | 樹脂製油圧シリンダの製造方法 | |
GB2160144A (en) | Shaping pipe ends | |
ITRE20000098A1 (it) | Procedimento per la realizzazione di flange per la giunzione di tubi | |
JPS60162617A (ja) | 中空成形品の製造方法および装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: THE HEPWORTH IRON COMPANY LIMITED |