FR2103406A1 - Metal coating - of the welded joint on metal coated tubes - Google Patents

Metal coating - of the welded joint on metal coated tubes

Info

Publication number
FR2103406A1
FR2103406A1 FR7130310A FR7130310A FR2103406A1 FR 2103406 A1 FR2103406 A1 FR 2103406A1 FR 7130310 A FR7130310 A FR 7130310A FR 7130310 A FR7130310 A FR 7130310A FR 2103406 A1 FR2103406 A1 FR 2103406A1
Authority
FR
France
Prior art keywords
metal
welded joint
coated tubes
coating
flange
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.)
Withdrawn
Application number
FR7130310A
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.)
Fried Krupp AG Hoesch Krupp
Original Assignee
Hoesch 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 Hoesch AG filed Critical Hoesch AG
Publication of FR2103406A1 publication Critical patent/FR2103406A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/09—Making tubes with welded or soldered seams of coated strip material ; Making multi-wall tubes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The coating is applied without the prior application of an intermediate layer. It is applied by flame pulverisation immediately after removal of the flange. This is carried out by means of planning while the flange is still in anincandescent state. The plane is preferably roughened. The heat persisting after the welding process enables the particles projected in the neighbouring superficial layers to be diffused. The plane and the pulverisationappts. are located one behind the other behind the welding apparatus in the processing line.
FR7130310A 1970-08-20 1971-08-19 Metal coating - of the welded joint on metal coated tubes Withdrawn FR2103406A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2041285 1970-08-20

Publications (1)

Publication Number Publication Date
FR2103406A1 true FR2103406A1 (en) 1972-04-14

Family

ID=5780210

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7130310A Withdrawn FR2103406A1 (en) 1970-08-20 1971-08-19 Metal coating - of the welded joint on metal coated tubes

Country Status (1)

Country Link
FR (1) FR2103406A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2189535A1 (en) * 1972-06-23 1974-01-25 Wheeling Pittsburgh Steel Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2189535A1 (en) * 1972-06-23 1974-01-25 Wheeling Pittsburgh Steel Corp

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Legal Events

Date Code Title Description
ST Notification of lapse