EP0472546A1 - Procede pour fabriquer des lingots creux plaques. - Google Patents

Procede pour fabriquer des lingots creux plaques.

Info

Publication number
EP0472546A1
EP0472546A1 EP90906879A EP90906879A EP0472546A1 EP 0472546 A1 EP0472546 A1 EP 0472546A1 EP 90906879 A EP90906879 A EP 90906879A EP 90906879 A EP90906879 A EP 90906879A EP 0472546 A1 EP0472546 A1 EP 0472546A1
Authority
EP
European Patent Office
Prior art keywords
melt
hollow
layer
plating
core
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.)
Granted
Application number
EP90906879A
Other languages
German (de)
English (en)
Other versions
EP0472546B1 (fr
Inventor
Hagen Ingo Von
Christoph Prasser
Fritz P Pleschiutschnigg
Lothar Parschat
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0472546A1 publication Critical patent/EP0472546A1/fr
Application granted granted Critical
Publication of EP0472546B1 publication Critical patent/EP0472546B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29—Cooling or quenching
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/006—Pattern or selective deposits
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/38—Wires; Tubes

Definitions

  • the invention is therefore based on the call guests to specify a method with which a hollow block clad only on the inside
  • Immersion in the melt of the carrier material can e.g. by
  • Sealing caps can be achieved.
  • a cylindrical core for this purpose, which lies closely against the inner surface of the hollow body.
  • the core is already used with particular advantage for the production of the cylindrical hollow body by immersing it in a melt of the plating material and allowing the required layer of the plating material to crystallize.
  • the core must consist of a sufficiently heat-resistant material, e.g. from a mild steel. The heat resistance only has to allow the core to be immersed in the melt for the required time without melting itself.
  • the hollow block produced was then hot pressed in a known manner in an extruder to form a seamless steel tube of approximately 21 m in length with 80 mm of soot diameter and 10 mm of wall thickness.
  • the plating layer had a thickness of about 2 mm and was perfectly connected to the carrier material.
  • Carbon black diameter, 60 mm inner diameter, a plating layer thickness of about 25 mm and again about 1 m in length are produced and formed into a seamless tube, the procedure according to Claim 3 being chosen for the plating fraction.
  • a rod made of St37 with a soot diameter of 60 mm which was covered with a scale layer, was immersed in a melt made of the material 1.4301 heated to 30 K above the liquidus temperature.
  • the rod was pulled out of the melt after a dipping time of approximately 35 seconds, during which a plating layer of approximately 17 mm had formed on the surface. After intermediate cooling to about room temperature, it was again immersed in the melt of the plating material to obtain the
  • the bar provided with a plating layer 25 mm thick was immersed in a melt of St37 heated to 20 K above the liquidus temperature. After three dips and intermediate cooling, a block of 236 mm soot diameter had formed. In order to achieve the desired carbon black diameter of 250 mm, a last dipping process of 53 seconds was carried out. After removal from the melt and complete solidification of the outer surface, the 5t37 rod used as the immersion core was pulled out of the hollow block on a pulling device. Because of the scale layer on the rod acting as a separating layer, this separation could be carried out without difficulty.
  • the outermost dipping process was carried out of the hollow block on a pulling device. Because of the scale layer on the rod acting as a separating layer, this separation could be carried out without difficulty.
  • the block was then again hot-formed in an extrusion press to form a seamless tube.
  • a carbon black diameter of 80 mm an inner diameter of 30 mm
  • the pipe length was over 20 m and the thickness of the plating layer was 1.6 mm.
  • the connection between the two layers was again perfect.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Coating With Molten Metal (AREA)
  • Laminated Bodies (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Chemically Coating (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • ing And Chemical Polishing (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

Procédé pour fabriquer des lingots creux plaqués à l'intérieur en vue de leur transformation ultérieure en tubes métalliques sans soudure, notamment des tubes acier. Pour obtenir un procédé qui permette de fabriquer un lingot creux plaqué uniquement à l'intérieur et qui évite les inconvénients usuels, un corps creux cylindrique constitué du matériau de placage est immergé dans un matériau de support en fusion, une couche de placage d'épaisseur suffisante est déposée par cristallisation et le corps creux est ensuite retiré du bain. Pendant l'immersion, la surface intérieure du corps creux est protégée afin d'empêcher la pénétration de matière en fusion.
EP90906879A 1989-05-16 1990-05-08 Procede pour fabriquer des lingots creux plaques Expired - Lifetime EP0472546B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3916114 1989-05-16
DE3916114 1989-05-16
PCT/DE1990/000335 WO1990014446A1 (fr) 1989-05-16 1990-05-08 Procede pour fabriquer des lingots creux plaques

Publications (2)

Publication Number Publication Date
EP0472546A1 true EP0472546A1 (fr) 1992-03-04
EP0472546B1 EP0472546B1 (fr) 1994-12-14

Family

ID=6380841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90906879A Expired - Lifetime EP0472546B1 (fr) 1989-05-16 1990-05-08 Procede pour fabriquer des lingots creux plaques

Country Status (10)

Country Link
US (1) US5232740A (fr)
EP (1) EP0472546B1 (fr)
JP (1) JP2925093B2 (fr)
KR (1) KR930010337B1 (fr)
CN (1) CN1028847C (fr)
AT (1) ATE115643T1 (fr)
BR (1) BR9007180A (fr)
CA (1) CA2033079C (fr)
DE (1) DE59008036D1 (fr)
WO (1) WO1990014446A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1042805C (zh) * 1994-03-28 1999-04-07 本溪钢铁公司 一种钢管镶铸方法
CN1057242C (zh) * 1995-12-19 2000-10-11 苌保俊 轴承合金现场无胎浇挂工艺
CN1067928C (zh) * 1997-09-23 2001-07-04 曾征 薄壁合金制品浸没结晶成型方法
ITMI20012098A1 (it) * 2001-10-11 2003-04-11 Giorgio Enrico Falck Procedimento per la produzione di lingotti metallici con anima di acciaio inossidabile
AU2002343118A1 (en) * 2001-10-11 2003-04-28 Corinox S.R.L. A method for the production of hollow metallic ingots or compound metallic ingots
CN101440467B (zh) * 2008-12-12 2010-06-02 南车四方车辆有限公司 一种金属部件螺纹孔在热浸锌防腐处理中的保护方法
CN103317124B (zh) * 2013-06-05 2015-04-08 无锡舒玛天科新能源技术有限公司 一种铜铟镓旋转靶材的制备方法
CN116732459B (zh) * 2023-06-14 2024-03-29 江苏塞恩斯金属新材料科技有限公司 一种高强度、耐低温钢管及其制备工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1938257A (en) * 1931-12-29 1933-12-05 Jones Ernest Fraser Production of hollow ingots
AT302223B (de) * 1970-09-22 1972-10-10 Voest Ag Verfahren zur Erzeugung von dreischichtigen Walzprodukten
JPS54141343A (en) * 1978-04-25 1979-11-02 Nitto Aen Tokin Kk Wet galvanizing method for steel pipe outside
DE3134758A1 (de) * 1981-09-02 1983-03-17 Kocks Technik Gmbh & Co, 4010 Hilden Verfahren zum herstellen von metallischen hohlbloecken
JPS58103937A (ja) * 1981-12-17 1983-06-21 Sumitomo Metal Ind Ltd 中空鋼片の製造方法
JPS6021174A (ja) * 1983-07-15 1985-02-02 Toyota Motor Corp 有底中空体の製造方法
JPS613874A (ja) * 1984-06-15 1986-01-09 Kubota Ltd 二層管の製造方法
JPS6152357A (ja) * 1984-08-18 1986-03-15 Sumitomo Metal Ind Ltd 継目無クラツド管の製造方法
US4759399A (en) * 1986-05-15 1988-07-26 Kawasaki Steel Corporation Method and apparatus for producing hollow metal ingots
JPH01218759A (ja) * 1988-02-29 1989-08-31 Kawasaki Steel Corp 中空鋳片の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9014446A1 *

Also Published As

Publication number Publication date
CA2033079A1 (fr) 1990-11-17
EP0472546B1 (fr) 1994-12-14
DE59008036D1 (de) 1995-01-26
JP2925093B2 (ja) 1999-07-26
US5232740A (en) 1993-08-03
CN1047235A (zh) 1990-11-28
JPH04505184A (ja) 1992-09-10
KR920700304A (ko) 1992-02-19
ATE115643T1 (de) 1994-12-15
BR9007180A (pt) 1992-01-28
CN1028847C (zh) 1995-06-14
CA2033079C (fr) 1998-12-29
WO1990014446A1 (fr) 1990-11-29
KR930010337B1 (ko) 1993-10-16

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