FR734256A - Improvements in the manufacture of seamless tubes - Google Patents

Improvements in the manufacture of seamless tubes

Info

Publication number
FR734256A
FR734256A FR734256DA FR734256A FR 734256 A FR734256 A FR 734256A FR 734256D A FR734256D A FR 734256DA FR 734256 A FR734256 A FR 734256A
Authority
FR
France
Prior art keywords
manufacture
seamless tubes
seamless
tubes
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
Other languages
French (fr)
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.)
Diescher & Sons S
Original Assignee
Diescher & Sons S
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 Diescher & Sons S filed Critical Diescher & Sons S
Application granted granted Critical
Publication of FR734256A publication Critical patent/FR734256A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
FR734256D 1931-04-04 1932-03-26 Improvements in the manufacture of seamless tubes Expired FR734256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US527652A US1870209A (en) 1931-04-04 1931-04-04 Method of reducing and elongating tubular blanks

Publications (1)

Publication Number Publication Date
FR734256A true FR734256A (en) 1932-10-19

Family

ID=24102362

Family Applications (1)

Application Number Title Priority Date Filing Date
FR734256D Expired FR734256A (en) 1931-04-04 1932-03-26 Improvements in the manufacture of seamless tubes

Country Status (6)

Country Link
US (1) US1870209A (en)
BE (1) BE387492A (en)
DE (1) DE649754C (en)
FR (1) FR734256A (en)
GB (1) GB380000A (en)
NL (1) NL37171C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747926C (en) * 1936-10-02 1944-10-20 Helical rolling mill
NL207167A (en) * 1955-05-17 1900-01-01 Delta Kuehlschrank G M B H
DE2156595C3 (en) * 1971-11-11 1980-01-24 Mannesmannroehren-Werke Ag, 4000 Duesseldorf Tube piercing mill
JPS6059042B2 (en) * 1981-04-10 1985-12-23 住友金属工業株式会社 Manufacturing method of seamless steel pipe
DE4007406C2 (en) * 1990-03-06 1994-01-20 Mannesmann Ag Process for the production of medium and thin-walled seamless pipes and rolling device for carrying out the process
CN105234179B (en) * 2015-11-02 2017-03-22 浙江格洛斯无缝钢管有限公司 Technique for sizing thick-walled seamless steel tubes through two-roller skew rolling mill and technique for rolling thick-walled seamless steel tubes through two-roller skew rolling mill

Also Published As

Publication number Publication date
DE649754C (en) 1937-09-07
BE387492A (en)
US1870209A (en) 1932-08-02
NL37171C (en)
GB380000A (en) 1932-09-08

Similar Documents

Publication Publication Date Title
FR727569A (en) Improvements in the manufacture of artificial materials
FR734256A (en) Improvements in the manufacture of seamless tubes
FR776476A (en) Electron tube
FR719256A (en) Tubular surface condenser
FR720172A (en) Welding improvements
FR631628A (en) Improvements in the manufacture of seamless tubes
FR776322A (en) Improvement in the manufacture of waterproof metal tubes
FR765649A (en) Improvements in the construction of finned tubes
FR732364A (en) Improvements in the manufacture of artificial filaments
FR727687A (en) Improvements in the manufacture of lithopone
FR712058A (en) Red tube
FR702332A (en) Improvements in the manufacture of joined tubes
FR739712A (en) Improvements in the production of phosphorus
FR732656A (en) Improvements in the manufacture of metal tubes and other tubular articles
FR734206A (en) Improvements in tube manufacturing
FR715301A (en) Incandescent cathode tube
FR773793A (en) Improvements in the manufacture of violanthrone derivatives
FR718932A (en) Improvements in the manufacture of radiators
FR759968A (en) Improvements in the manufacture of ferro-cobalt
FR781619A (en) Improvements in the manufacture of nickel-carbonyl
FR810254A (en) Improvements in the manufacture of magnesium
FR718915A (en) Further training in the making of espadrilles
FR736394A (en) Tube
FR734466A (en) Electric discharge tubes
FR593856A (en) Improvements in the production of seamless tubes