NO754351L - - Google Patents
Info
- Publication number
- NO754351L NO754351L NO754351A NO754351A NO754351L NO 754351 L NO754351 L NO 754351L NO 754351 A NO754351 A NO 754351A NO 754351 A NO754351 A NO 754351A NO 754351 L NO754351 L NO 754351L
- Authority
- NO
- Norway
- Prior art keywords
- alloys
- cold forming
- copper
- aluminum
- pipes
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Continuous Casting (AREA)
- Forging (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
emgangsmåte til fremstilling av rør.procedure for the manufacture of pipes.
Description
Foreliggende oppfinnelse angår en fremgangsmåte til fremstilling av rør fra varmformbare (termoplastiske) metaller eller legeringer, som f.eks. kobber og kobberlegeringer eller aluminium og aluminiumslegeringer. The present invention relates to a method for producing pipes from heat-formable (thermoplastic) metals or alloys, such as e.g. copper and copper alloys or aluminum and aluminum alloys.
Det er tidligere alminnelig kjent å støpe kobber og kobberlegeringer og likeledes aluminium og aluminiumslegeringer, dvs. varmformbare metaller og legeringer som rundbarrer i kokiller eller ved hjelp av ekstrudering. I tilslutning blir de ved ekstrudering fremstilte strenger oppsagd i korte av- It was previously common knowledge to cast copper and copper alloys and likewise aluminum and aluminum alloys, i.e. heat-formable metals and alloys as round ingots in molds or by means of extrusion. In addition, the strings produced by extrusion are terminated in short
snitt og ved hjelp av en ekstruder eller rørpresse eller i et rørvalseverk varmfdrmet til et forprodukt. Dette forprodukt blir deretter kaldformet f.eks. ved hjelp av trekking eller i et pilgervalseverk i flere kaldbearbeidelsestrinn, eventuelt under innkopling av glødebehandling. Ulempene ved dette er at man bare kan fremstille begrensede rørlengder, nemlig i avhengighet av størrelsen på de blokker som kan settes inn i rør-pressen. cut and with the help of an extruder or pipe press or in a pipe rolling mill hot-formed into a preliminary product. This pre-product is then cold-formed, e.g. by means of drawing or in a pilger rolling mill in several cold working steps, possibly with the inclusion of annealing treatment. The disadvantages of this are that you can only produce limited pipe lengths, namely depending on the size of the blocks that can be inserted into the pipe press.
Ved hjelp av fremgangsmåten ifølge oppfinnelsen, dvs. den direkte bruk av strengstøpte hulblokker for fremstilling av ferdige rør ved kaldforming, unngås disse ulemper, da det kan skje en ønsket oppdeling av de støpte hulstrengene, idet disse utelukkende er avhengig av på hvilken måte kaldformingen gjennomføres, dvs. ved trekking, pilgervalsing eller lignende. Derved kan man oppnå større rørlengder enn tidligere og With the help of the method according to the invention, i.e. the direct use of string-cast hollow blocks for the production of finished pipes by cold forming, these disadvantages are avoided, as a desired division of the cast hollow strings can take place, as these are solely dependent on the way in which the cold forming is carried out , i.e. when pulling, pile rolling or the like. Thereby, longer pipe lengths can be achieved than previously and
dessuten kan man nedsette investeringene ganske betydelig, da man kan sløyfe rørpresser og lignende og dessuten lokking som var nødvendig med dentitidligere teknikkens stand. Derved unngår man i vesentlig grad spill. moreover, you can reduce the investments quite significantly, as you can do away with pipe presses and the like and also baiting which was necessary with the earlier state of the art. Thereby, gambling is largely avoided.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752501215 DE2501215A1 (en) | 1975-01-10 | 1975-01-10 | USE OF CONTINUOUSLY CASTED HOLLOW BLOCKS MADE OF HOT FORMABLE ALLOYS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO754351L true NO754351L (en) | 1976-07-13 |
Family
ID=5936401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO754351A NO754351L (en) | 1975-01-10 | 1975-12-22 |
Country Status (12)
| Country | Link |
|---|---|
| BE (1) | BE837363A (en) |
| CH (1) | CH602205A5 (en) |
| DE (1) | DE2501215A1 (en) |
| DK (1) | DK6976A (en) |
| ES (1) | ES444179A1 (en) |
| FI (1) | FI760042A7 (en) |
| FR (1) | FR2297098A1 (en) |
| GB (1) | GB1528620A (en) |
| LU (1) | LU74081A1 (en) |
| NL (1) | NL7600139A (en) |
| NO (1) | NO754351L (en) |
| SE (1) | SE7600173L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981003440A1 (en) * | 1980-05-30 | 1981-12-10 | Gnii P I Splavov I Obrabotki T | Method of making brass pipes |
-
1975
- 1975-01-10 DE DE19752501215 patent/DE2501215A1/en active Pending
- 1975-12-19 LU LU74081A patent/LU74081A1/xx unknown
- 1975-12-22 NO NO754351A patent/NO754351L/no unknown
- 1975-12-31 GB GB53342/75A patent/GB1528620A/en not_active Expired
-
1976
- 1976-01-07 BE BE163354A patent/BE837363A/en unknown
- 1976-01-08 NL NL7600139A patent/NL7600139A/en not_active Application Discontinuation
- 1976-01-08 FR FR7600307A patent/FR2297098A1/en not_active Withdrawn
- 1976-01-09 ES ES444179A patent/ES444179A1/en not_active Expired
- 1976-01-09 SE SE7600173A patent/SE7600173L/en unknown
- 1976-01-09 DK DK6976*#A patent/DK6976A/en not_active Application Discontinuation
- 1976-01-09 CH CH23776A patent/CH602205A5/xx not_active IP Right Cessation
- 1976-01-09 FI FI760042A patent/FI760042A7/fi not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ES444179A1 (en) | 1977-05-01 |
| DK6976A (en) | 1976-07-11 |
| BE837363A (en) | 1976-05-03 |
| FI760042A7 (en) | 1976-07-11 |
| DE2501215A1 (en) | 1976-07-22 |
| FR2297098A1 (en) | 1976-08-06 |
| CH602205A5 (en) | 1978-07-31 |
| LU74081A1 (en) | 1976-07-20 |
| NL7600139A (en) | 1976-07-13 |
| SE7600173L (en) | 1976-07-12 |
| GB1528620A (en) | 1978-10-18 |
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