4J42 alloy wire for discharge tube electrode and production method thereof

A production method and alloy wire technology, applied in the field of 4J42 alloy wire and its manufacture, can solve problems affecting the scientificity and rationality of the production process, improve the purity and uniformity of the structure, improve the surface quality, and reduce the non-metallic The effect of inclusion content

Inactive Publication Date: 2015-12-30
丹阳市凯鑫合金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no systematic research on the production process of 4J42 alloy wire specifically for the electrode cap used in electric discharge tubes, which directly affects the scientificity and rationality of the production process of this product.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0039] A kind of production method of 4J42 alloy wire for discharge tube electrode, concrete steps are as follows:

[0040] 1. Vacuum melting:

[0041] (1) Preparation of raw materials: The charge is Jinchuan Ni plate and ultra-low carbon material, which are baked and used for later use;

[0042] (2) Loading: Load the baked raw material Jinchuan Ni plate and ultra-low carbon charge into the vacuum induction melting furnace;

[0043] (3) Refining: low-power chemical material, after melting 70%, increase the power to melt at a high speed, and enter the refining period after reaching the refining temperature of 1600°C after full melting, and keep refining for at least 30 minutes;

[0044] (4) Casting: Turn to low vacuum (103-10-1Pa) in the later stage of refining, stir with high power for one minute to tap the steel, and pour the electrodes. The steel drum used should be clean, free from cold steel and residue, and there should be no unburned black ash and oily smoke on the plu...

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PUM

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Abstract

The invention discloses a 4J42 alloy wire for a discharge tube electrode and a production method thereof. The production method comprises the following steps that 4J42 raw material is put into a vacuum furnace for steelmaking, and an ingot is obtained; forging and cogging are conducted, and a wire rod is formed through hot rolling; acid dipping treatment is conducted on the hot-rolled wire rod; polishing and trimming are conducted after acid dipping, and first-time drawing is conducted; annealing treatment is conducted on a semi-finished product which is subjected to first-time drawing; acid dipping and coping are conducted on the semi-finished product which is subjected to the annealing treatment; second-time drawing is conducted when it is determined that cracks do not exist; heat treatment annealing is conducted on the drawn wire rod which is subjected to second-time drawing; the surface conditions of the wire rod are checked again, coarse wire fine drawing is conducted, and heat treatment is conducted once every time a coarse wire is downwards drawn a specification till the size of a finished product is reached. According to the 4J42 alloy wire for the discharge tube electrode and the production method thereof, all factors which affect the plasticity and the yield of 4J42 in the production process are researched and found according to the actual demands of the electrode of a discharge tube, and the defects of pool plasticity and low yield which occur in subsequent machining are overcome by improving the 4J42 production technology process.

Description

technical field [0001] The invention relates to a 4J42 alloy wire and a manufacturing method thereof, in particular to a 4J42 alloy wire for a discharge tube electrode and a manufacturing method thereof. Background technique [0002] 4J42 alloy belongs to the expansion alloy in the precision alloy, the nickel content is about 42%, the rest is mainly iron, and has a stable low expansion coefficient (the average expansion coefficient at room temperature is 1.6X10 -6 / °C), it is widely used in aerospace, precision instruments, and electronics industries, and its main purpose is to produce electrodes for discharge tubes. Discharge tubes are used to protect the safe operation of communication systems, traffic signal systems, computer data systems, external cables and electronic instruments of various electronic equipment. At present, no other material can replace this traditional vacuum sealing material. Although the market demand for 4J42 is huge, the product quality of most d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/08C22C38/10C22C33/04C21D8/06
Inventor 荆正伟钟静
Owner 丹阳市凯鑫合金材料有限公司
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