DE3512502C2 - - Google Patents
Info
- Publication number
- DE3512502C2 DE3512502C2 DE19853512502 DE3512502A DE3512502C2 DE 3512502 C2 DE3512502 C2 DE 3512502C2 DE 19853512502 DE19853512502 DE 19853512502 DE 3512502 A DE3512502 A DE 3512502A DE 3512502 C2 DE3512502 C2 DE 3512502C2
- Authority
- DE
- Germany
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853512502 DE3512502A1 (de) | 1985-04-06 | 1985-04-06 | Verfahren und vorrichtung zur herstellung eines doppelwandigen rohrs fuer den feststofftransport |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853512502 DE3512502A1 (de) | 1985-04-06 | 1985-04-06 | Verfahren und vorrichtung zur herstellung eines doppelwandigen rohrs fuer den feststofftransport |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3512502A1 DE3512502A1 (de) | 1986-10-23 |
DE3512502C2 true DE3512502C2 (xx) | 1987-02-05 |
Family
ID=6267404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853512502 Granted DE3512502A1 (de) | 1985-04-06 | 1985-04-06 | Verfahren und vorrichtung zur herstellung eines doppelwandigen rohrs fuer den feststofftransport |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3512502A1 (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110153638B (zh) * | 2019-05-28 | 2021-02-26 | 河南中原特钢装备制造有限公司 | 压力管内镶管的热装配制造工艺 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE593559C (de) * | 1934-02-28 | Theodor V Meszoely | Verfahren zur Herstellung von doppelwandigen Metallrohren | |
US952545A (en) * | 1910-03-22 | American Pipe Lining Corp | Apparatus for lining pipes. | |
DE619070C (de) * | 1932-12-17 | 1935-09-21 | Roehrenwerke Akt Ges Deutsche | Verfahren zur Herstellung nahtloser Rohre |
DE712586C (de) * | 1937-03-04 | 1941-10-22 | Ferndorf Eisen Metall | Verfahren zur Herstellung eines von einem zaehen Mantel umgebenen hochgehaerteten Rohres, insbesondere fuer Versatzleitungen |
DE2905071C2 (de) * | 1979-02-10 | 1983-11-03 | Jakobs & Co GmbH, 4200 Oberhausen | Doppelwand-Leitungsrohr |
-
1985
- 1985-04-06 DE DE19853512502 patent/DE3512502A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3512502A1 (de) | 1986-10-23 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |