Manufacturing method of electrode cap used for welding automobile coated steel plate

Abstract

The invention discloses a method for manufacturing an electrode cap used for welding coated steel plates of automobiles, belonging to the technical field of processing electrode materials for welding. It includes the following steps: (1) Raw material preparation, with cathode copper, chromium powder and zirconium powder as main raw materials, and magnesium as oxygen scavenger, wherein: the main raw materials are: 99% to 99.47% by weight of cathode copper, 0.4% ~0.8% chromium powder, 0.08%~0.20% zirconium powder, oxygen scavenger by weight percentage: 0.05%~0.1% magnesium; In the circular casting mold, the ingot billet is obtained; (3) the surface of the ingot billet is cleaned, and hot extruded into a bar; (4) solid solution treatment; (5) cold drawing and broaching; (6) blanking, And putting it into a cold extrusion mold for cold extrusion to form a hollow spherical green body; (7) vacuum annealing the hollow spherical green body after being released from the mold; (8) trimming and polishing to obtain an electrode cap product. The electrode cap made by the method has the advantages of anti-stick welding, high hardness, ideal electrical conductivity and good temperature resistance and softening property.

Description

technical field

[0001] The invention relates to a method for manufacturing an electrode cap used for welding clad steel plates for automobiles, more specifically, an electrode cap for welding clad steel plates for automobiles made of chromium-zirconium copper electrode materials as raw materials The method belongs to the technical field of processing electrode materials for welding. Background technique

[0002] Chromium-zirconium-copper electrode materials of commonly used specifications are produced according to the ISO5182-99 standard. The materials selected according to this standard are first smelted in a vacuum furnace or an electric furnace to make a billet of a certain specification, then forged or hot extruded, solution treated, then cold drawn and vacuum annealed (or aerobic annealed), and finally made into Electrode cap products of various specifications required by users. The main mechanical and physical properties of the electrode cap products processed in thi...

Examples

Embodiment 1

[0028] Take the production of a spherical electrode cap with a specification of Φ16mm×23mm as an example.

[0029] (1) Accurately weigh 99.2% of the standard cathode copper that meets the requirements of the national standard GB467-1997, and 0.6 chromium powder that meets the requirements of the national standard GB2211-87 produced and sold by Jinzhou Jia Alloy Factory with a purity of 99.5% through a 40-mesh sieve. % and zirconium sponge 0.15% produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 98% through a 40-mesh sieve and meeting the requirements of the YB69-65 metallurgical standard, and the brand name MG23A produced by China Jiangsu Suzhou Tianyi Metal Material Co., Ltd. Magnesium 0.05%;

[0030] (2) Fully mix the above-mentioned raw materials, put them into a vacuum furnace for melting, take them out of the furnace when the furnace temperature reaches 1250° C., pour them into a circular mold, and demould after cooling to obtain an ingot billet; ...

Embodiment 2

[0038] Take the production of a spherical electrode cap with a specification of Φ16mm×20mm as an example (replace the corresponding punch 3 and die 5).

[0039] (1) Accurately weigh 99.3% of high-purity cathode copper that meets the requirements of the national standard GBB467-1997, and 0.5% chromium powder that meets the requirements of the national standard GB2211-87 produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 99.5% through a 40-mesh sieve. % and zirconium sponge 0.12% produced and sold by Jinzhou Jia Alloy Factory with a purity of more than 98% through a 40-mesh sieve and meeting the requirements of the YB69-65 metallurgical standard, and the brand produced by China Jiangsu Suzhou Tianyi Metal Material Co., Ltd. is Magnesium 0.08% of MG23A;

[0040] (2) Mix the above-mentioned raw materials thoroughly, put them into a vacuum furnace for melting, take them out of the furnace when the furnace temperature reaches 1290°C, pour them into a circular c...

Embodiment 3

[0048] Take the manufacture of a spherical electrode cap with a specification of Φ13mm×20mm as an example (replace the punch 3 and the die 5 with corresponding specifications).

[0049] (1) Accurately weigh 99.4% of the standard cathode copper that meets the requirements of the national standard GB467-1997, and 0.4% of chromium powder that meets the requirements of the national standard GB2211-87 produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 99.5% through a 40-mesh sieve And zirconium sponge 0.1% produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 98% through a 40-mesh sieve and meeting the requirements of the YB69-65 metallurgical standard, and MG23A produced by China Jiangsu Suzhou Tianyi Metal Material Co., Ltd. Magnesium 0.1%;

[0050] (2) The above-mentioned raw materials are fully mixed, put into a vacuum furnace for smelting, and when the furnace temperature reaches 1210° C., they are taken out of the furnace, poured i...

technical field

[0001] The invention relates to a method for manufacturing an electrode cap used for welding clad steel plates for automobiles, more specifically, an electrode cap for welding clad steel plates for automobiles made of chromium-zirconium copper electrode materials as raw materials The method belongs to the technical field of processing electrode materials for welding. Background technique

[0002] Chromium-zirconium-copper electrode materials of commonly used specifications are produced according to the ISO5182-99 standard. The materials selected according to this standard are first smelted in a vacuum furnace or an electric furnace to make a billet of a certain specification, then forged or hot extruded, solution treated, then cold drawn and vacuum annealed (or aerobic annealed), and finally made into Electrode cap products of various specifications required by users. The main mechanical and physical properties of the electrode cap products processed in thi...

Examples

Embodiment 1

[0028] Take the production of a spherical electrode cap with a specification of Φ16mm×23mm as an example.

[0029] (1) Accurately weigh 99.2% of the standard cathode copper that meets the requirements of the national standard GB467-1997, and 0.6 chromium powder that meets the requirements of the national standard GB2211-87 produced and sold by Jinzhou Jia Alloy Factory with a purity of 99.5% through a 40-mesh sieve. % and zirconium sponge 0.15% produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 98% through a 40-mesh sieve and meeting the requirements of the YB69-65 metallurgical standard, and the brand name MG23A produced by China Jiangsu Suzhou Tianyi Metal Material Co., Ltd. Magnesium 0.05%;

[0030] (2) Fully mix the above-mentioned raw materials, put them into a vacuum furnace for melting, take them out of the furnace when the furnace temperature reaches 1250° C., pour them into a circular mold, and demould after cooling to obtain an ingot billet; ...

Embodiment 2

[0038] Take the production of a spherical electrode cap with a specification of Φ16mm×20mm as an example (replace the corresponding punch 3 and die 5).

[0039] (1) Accurately weigh 99.3% of high-purity cathode copper that meets the requirements of the national standard GBB467-1997, and 0.5% chromium powder that meets the requirements of the national standard GB2211-87 produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 99.5% through a 40-mesh sieve. % and zirconium sponge 0.12% produced and sold by Jinzhou Jia Alloy Factory with a purity of more than 98% through a 40-mesh sieve and meeting the requirements of the YB69-65 metallurgical standard, and the brand produced by China Jiangsu Suzhou Tianyi Metal Material Co., Ltd. is Magnesium 0.08% of MG23A;

[0040] (2) Mix the above-mentioned raw materials thoroughly, put them into a vacuum furnace for melting, take them out of the furnace when the furnace temperature reaches 1290°C, pour them into a circular c...

Embodiment 3

[0048] Take the manufacture of a spherical electrode cap with a specification of Φ13mm×20mm as an example (replace the punch 3 and the die 5 with corresponding specifications).

[0049] (1) Accurately weigh 99.4% of the standard cathode copper that meets the requirements of the national standard GB467-1997, and 0.4% of chromium powder that meets the requirements of the national standard GB2211-87 produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 99.5% through a 40-mesh sieve And zirconium sponge 0.1% produced and sold by Jinzhou Ferroalloy Factory with a purity of more than 98% through a 40-mesh sieve and meeting the requirements of the YB69-65 metallurgical standard, and MG23A produced by China Jiangsu Suzhou Tianyi Metal Material Co., Ltd. Magnesium 0.1%;

[0050] (2) The above-mentioned raw materials are fully mixed, put into a vacuum furnace for smelting, and when the furnace temperature reaches 1210° C., they are taken out of the furnace, poured i...

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