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Manufacturing method for sintering copper-based mace welding rod through hydrogen

A production method and mace technology, which are applied in welding media, manufacturing tools, welding equipment, etc., can solve problems such as unsightly appearance, and achieve the effects of improving aesthetics, improving structural performance, and improving welding performance.

Inactive Publication Date: 2020-06-16
株洲楚天硬质合金股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to propose a new mace welding rod manufacturing method aimed at the serious surface oxidation and unattractive defects of the existing domestic mace welding rod, which can greatly improve the Reduce the phenomenon of oxidation on the surface of the electrode, and improve the performance and appearance of the mace electrode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A hydrogen sintered copper-based mace welding rod production method, in a vacuum sintering furnace, first vacuumize the furnace, then fill in an inert gas, and use the inert gas to evacuate the air in the furnace to form a vacuum inert gas environment, and then pass in hydrogen for sintering, hydrogen sintering in an oxygen-free environment to make mace welding rods.

[0023] Further, the vacuuming process in the furnace is to first put the product to be processed into the vacuum sintering furnace, then close the furnace door, carry out the vacuuming process, and start the vacuum system so that the vacuum degree in the furnace reaches -0.5 -1MPa, maintain vacuum for 15-20 minutes.

[0024] Further, after vacuuming, the furnace is filled with inert gas through the pipeline, and the air in the furnace is further discharged through the inert gas, so that the furnace becomes an oxygen-free environment.

[0025] Further, the inert gas is nitrogen, and the purity of the iner...

Embodiment 2

[0029] The implementation mode of embodiment two is basically the same as embodiment one, but the conditions are slightly different. It is a hydrogen sintered copper-based mace electrode manufacturing method. In the vacuum sintering furnace, the furnace is first vacuumed. Then fill in inert gas, use the inert gas to evacuate the air in the furnace to form a vacuum inert gas environment, and then pass in hydrogen for sintering, and carry out hydrogen sintering in an oxygen-free environment to make mace welding rods.

[0030] Further, the vacuuming process in the furnace is to first put the product to be processed into the vacuum sintering furnace, then close the furnace door, carry out the vacuuming process, and start the vacuum system so that the vacuum degree in the furnace reaches -0.5 -0.8MPa, maintain vacuum for 20-25 minutes.

[0031] Further, after vacuuming, the furnace is filled with inert gas through the pipeline, and the air in the furnace is further discharged throu...

Embodiment 3

[0036] The implementation mode of embodiment three is basically the same as that of embodiment one, but the conditions are slightly different. It is a method for manufacturing a hydrogen sintered copper-based mace electrode. In a vacuum sintering furnace, the furnace is first vacuumed. Then fill in inert gas, use the inert gas to evacuate the air in the furnace to form a vacuum inert gas environment, and then pass in hydrogen for sintering, and carry out hydrogen sintering in an oxygen-free environment to make mace welding rods.

[0037] Further, the vacuuming treatment in the furnace is to first put the product to be processed into the vacuum sintering furnace, then close the furnace door, perform vacuuming treatment, start the vacuum system, so that the vacuum degree in the furnace reaches -0.1 -0.5MPa, maintain vacuum for 25-30 minutes.

[0038] Further, after vacuuming, the furnace is filled with inert gas through the pipeline, and the air in the furnace is further dischar...

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PUM

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Abstract

The invention discloses a manufacturing method for sintering a copper-based mace welding rod through hydrogen. The method comprises the steps that in a vacuum sintering furnace, the interior of the furnace is vacuumized, inert gas is introduced, air in the furnace is exhausted through the inert gas, and a vacuum inert gas environment is formed; and then the hydrogen is introduced for sintering, hydrogen sintering is carried out in the oxygen-free environment to manufacture the mace welding rod. According to the method, the copper-based mace welding rod is sintered in the vacuum oxygen-free environment, so that the situation that in the sintering process, oxygen reacts with copper-based material to generate an oxide surface layer is effectively avoided, the internal structural performance of the welding rod can be effectively improved, and the welding performance of the welding rod is improved to some extent.

Description

technical field [0001] The invention relates to a manufacturing method of an alloy welding rod, in particular to a manufacturing method of a copper-based mace hard alloy (sintered type) composite surfacing welding rod, belonging to the technical field of alloy product manufacturing. Background technique: [0002] Mace cemented carbide particle electrode is a surfacing welding electrode with sintered tungsten carbide particles as the main component, copper-based alloy as the carcass material, and coated with flux. The hardness of the cemented carbide particle reaches 89-91 in HRA Applied to the "remanufacturing" of various wear-prone parts and machinery, such as surfacing and repairing of wear-resistant layers such as oil tool milling shoes, drill pipe wear-resistant belts, rubber and leather filing tools, etc. However, the current high-end products of mace cemented carbide particle electrodes are completely imported from the United States; although many domestic manufacturer...

Claims

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Application Information

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IPC IPC(8): B23K35/40
CPCB23K35/40
Inventor 唐迎春
Owner 株洲楚天硬质合金股份有限公司