EP0472546A1 - Process for manufacturing plated hollow blocks. - Google Patents
Process for manufacturing plated hollow blocks.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
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000007747 plating Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000007654 immersion Methods 0.000 claims abstract description 7
- 238000002425 crystallisation Methods 0.000 claims abstract 2
- 230000008025 crystallization Effects 0.000 claims abstract 2
- 239000000155 melt Substances 0.000 claims description 26
- 239000012876 carrier material Substances 0.000 claims description 18
- 238000009499 grossing Methods 0.000 claims description 4
- 238000001953 recrystallisation Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 239000003779 heat-resistant material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000012768 molten material Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 239000004071 soot Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 7
- 239000006229 carbon black Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 230000009189 diving Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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.Method for manufacturing hollow ingots plated inside with a view to their subsequent transformation into seamless metal tubes, in particular steel tubes. To obtain a process which makes it possible to manufacture a hollow ingot plated only inside and which avoids the usual drawbacks, a cylindrical hollow body made of the plating material is immersed in a molten support material, a thick plating layer. sufficient is deposited by crystallization and the hollow body is then removed from the bath. During immersion, the interior surface of the hollow body is protected to prevent the ingress of molten material.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3916114 | 1989-05-16 | ||
DE3916114 | 1989-05-16 | ||
PCT/DE1990/000335 WO1990014446A1 (en) | 1989-05-16 | 1990-05-08 | Process for manufacturing plated hollow blocks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0472546A1 true EP0472546A1 (en) | 1992-03-04 |
EP0472546B1 EP0472546B1 (en) | 1994-12-14 |
Family
ID=6380841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90906879A Expired - Lifetime EP0472546B1 (en) | 1989-05-16 | 1990-05-08 | Process for manufacturing plated hollow blocks |
Country Status (10)
Country | Link |
---|---|
US (1) | US5232740A (en) |
EP (1) | EP0472546B1 (en) |
JP (1) | JP2925093B2 (en) |
KR (1) | KR930010337B1 (en) |
CN (1) | CN1028847C (en) |
AT (1) | ATE115643T1 (en) |
BR (1) | BR9007180A (en) |
CA (1) | CA2033079C (en) |
DE (1) | DE59008036D1 (en) |
WO (1) | WO1990014446A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1042805C (en) * | 1994-03-28 | 1999-04-07 | 本溪钢铁公司 | Anti-oxidation method for inwall of steel pipe inlaid in casting |
CN1057242C (en) * | 1995-12-19 | 2000-10-11 | 苌保俊 | Bearing alloy on-site no-die pouring-casting technology |
CN1067928C (en) * | 1997-09-23 | 2001-07-04 | 曾征 | Thin wall alloy product immersion crystalline forming method |
EP1461175A2 (en) * | 2001-10-11 | 2004-09-29 | Corinox S.R.L. | A method for the production of hollow metallic ingots or compound metallic ingots |
ITMI20012098A1 (en) * | 2001-10-11 | 2003-04-11 | Giorgio Enrico Falck | PROCEDURE FOR THE PRODUCTION OF METAL INGOTS WITH STAINLESS STEEL CORE |
CN101440467B (en) * | 2008-12-12 | 2010-06-02 | 南车四方车辆有限公司 | Protecting method for metal component screwed hole in hot-dip galvanizing antiseptic treatment |
CN103317124B (en) * | 2013-06-05 | 2015-04-08 | 无锡舒玛天科新能源技术有限公司 | Method for preparing rotary copper, indium and gallium target |
CN116732459B (en) * | 2023-06-14 | 2024-03-29 | 江苏塞恩斯金属新材料科技有限公司 | High-strength low-temperature-resistant steel pipe and preparation process thereof |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1938257A (en) * | 1931-12-29 | 1933-12-05 | Jones Ernest Fraser | Production of hollow ingots |
AT302223B (en) * | 1970-09-22 | 1972-10-10 | Voest Ag | Process for the production of three-layer rolled products |
JPS54141343A (en) * | 1978-04-25 | 1979-11-02 | Nitto Aen Tokin Kk | Wet galvanizing method for steel pipe outside |
DE3134758A1 (en) * | 1981-09-02 | 1983-03-17 | Kocks Technik Gmbh & Co, 4010 Hilden | METHOD FOR PRODUCING METALLIC HOLLOW BLOCKS |
JPS58103937A (en) * | 1981-12-17 | 1983-06-21 | Sumitomo Metal Ind Ltd | Production of hollow steel ingot |
JPS6021174A (en) * | 1983-07-15 | 1985-02-02 | Toyota Motor Corp | Production of bottomed hollow body |
JPS613874A (en) * | 1984-06-15 | 1986-01-09 | Kubota Ltd | Production of double-layered pipe |
JPS6152357A (en) * | 1984-08-18 | 1986-03-15 | Sumitomo Metal Ind Ltd | Manufacture of seamless clad tube |
US4759399A (en) * | 1986-05-15 | 1988-07-26 | Kawasaki Steel Corporation | Method and apparatus for producing hollow metal ingots |
JPH01218759A (en) * | 1988-02-29 | 1989-08-31 | Kawasaki Steel Corp | Production of hollow ingot |
-
1990
- 1990-05-08 US US07/776,306 patent/US5232740A/en not_active Expired - Fee Related
- 1990-05-08 KR KR1019900702693A patent/KR930010337B1/en not_active IP Right Cessation
- 1990-05-08 CA CA002033079A patent/CA2033079C/en not_active Expired - Fee Related
- 1990-05-08 DE DE59008036T patent/DE59008036D1/en not_active Expired - Fee Related
- 1990-05-08 EP EP90906879A patent/EP0472546B1/en not_active Expired - Lifetime
- 1990-05-08 WO PCT/DE1990/000335 patent/WO1990014446A1/en active IP Right Grant
- 1990-05-08 AT AT90906879T patent/ATE115643T1/en not_active IP Right Cessation
- 1990-05-08 BR BR909007180A patent/BR9007180A/en not_active IP Right Cessation
- 1990-05-08 JP JP2506900A patent/JP2925093B2/en not_active Expired - Lifetime
- 1990-05-12 CN CN90102770A patent/CN1028847C/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9014446A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE115643T1 (en) | 1994-12-15 |
JPH04505184A (en) | 1992-09-10 |
BR9007180A (en) | 1992-01-28 |
KR920700304A (en) | 1992-02-19 |
CA2033079A1 (en) | 1990-11-17 |
CN1047235A (en) | 1990-11-28 |
WO1990014446A1 (en) | 1990-11-29 |
US5232740A (en) | 1993-08-03 |
EP0472546B1 (en) | 1994-12-14 |
CA2033079C (en) | 1998-12-29 |
KR930010337B1 (en) | 1993-10-16 |
CN1028847C (en) | 1995-06-14 |
JP2925093B2 (en) | 1999-07-26 |
DE59008036D1 (en) | 1995-01-26 |
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