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Multi-element composite rare-earth tungsten alloy wire and rolling technology thereof and electrode

A multi-component composite and alloy wire technology, applied in metal rolling, manufacturing tools, metal processing equipment, etc., can solve the problems of poor process controllability, less single deformation, uneven deformation, etc., and achieve high melting point and internal structure Uniform, uniform deformation effect

Active Publication Date: 2021-10-29
BEIJING MINING & METALLURGICAL TECH GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a rolling process of multi-element composite rare earth tungsten alloy wire to solve the technical problems of poor process controllability, high labor intensity, less single deformation, uneven deformation and low production efficiency in the prior art

Method used

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  • Multi-element composite rare-earth tungsten alloy wire and rolling technology thereof and electrode
  • Multi-element composite rare-earth tungsten alloy wire and rolling technology thereof and electrode
  • Multi-element composite rare-earth tungsten alloy wire and rolling technology thereof and electrode

Examples

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Embodiment 1

[0096]This embodiment provides a multi-element composite rare earth tungsten alloy wire rod. In the tungsten alloy rolling process, the tungsten alloy rod Φ15.5 mm is first put into a heating furnace to be heated to 1600 ° C, and then sent to a rolling mill for rolling; The total deformation from Φ15.5mm to Φ8.0mm is 74%, and it is divided into 8 compression pass diameters in order of 14.29-12.96-12.09-10.96-9.03-8.3-8.63-8.0, and the compression ratio of each pass is 15 %, 15%, 10%, 10%, 8%, 8%, 5%, 3%, each pass processing temperature 1550°C, 1530°C, 1500°C, 1480°C, 1460°C, 1440°C, 1400°C, 1380°C ℃, the overall processing speed is 10m / s. Annealing treatment is carried out after rolling, and the specific annealing temperature is: 1400° C.; the annealing time is 5 minutes.

Embodiment 2

[0098] This embodiment provides a multi-element composite rare earth tungsten alloy wire. The difference from Embodiment 1 is that it is divided into 4 rolling passes, and the diameter of each pass is 12.87-10.68-9.29-8.08, and the compression ratio of each pass is 17%, 17%, 13%, and 13%, respectively, and the processing temperature of each pass is 1550°C, 1530°C, 1500°C, and 1480°C. The other steps are the same as in Example 1, and will not be repeated here.

Embodiment 3

[0100] This embodiment provides a multi-element composite rare earth tungsten alloy wire. The difference from Embodiment 1 is that there are 10 compression pass diameters in sequence of 13.95-12.56-11.55-10.63-9.99-9.49-9.10-8.83, each pass The compression ratios are 10%, 10%, 8%, 8%, 6%, 5%, 4%, and 3%, respectively, and the processing temperature of each pass is 1550°C, 1530°C, 1500°C, 1480°C, 1460°C, 1440°C , 1400°C, 1380°C, 1360°C, 1340°C, and other steps are the same as in Example 1, and will not be repeated here.

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Abstract

The invention provides a multi-element composite rare-earth tungsten alloy wire and a rolling technology thereof and an electrode, and relates to the technical field of processing and manufacturing of refractory metal. According to the rolling technology of the multi-element composite rare-earth tungsten alloy wire, n passes are adopted for rolling in sequence, n is an integer ranging from 4 to 8, and the rolling compression ratio of each of the n passes is 2-17%. The multi-element composite rare-earth tungsten alloy wire is obtained by rolling according to the rolling technology of the multi-element composite rare-earth tungsten alloy wire. The rolling technology of the multi-element composite rare-earth tungsten alloy wire is good in controllability and high in production efficiency, the labor intensity is reduced, wire deformation is uniform, fiber tissue lap joint is good, internal structure is uniform, and the density can reach 18.9 g / cm<3>. The electrode made of the multi-element composite rare-earth tungsten alloy wire provided by the invention has the characteristics of high melting point, high density and burning loss resistance, and also has good conductivity.

Description

technical field [0001] The invention relates to the technical field of processing and manufacturing refractory metals, in particular to a multi-element composite rare-earth tungsten alloy wire rod and its rolling process and electrodes. Background technique [0002] Rare earth tungsten alloys are used as electrode materials in inert gas shielded welding, plasma welding, laser, cutting and other fields. Billet spinning is the first process in the processing of multi-element composite rare earth tungsten alloy. The traditional operation method is that the worker clamps the tungsten bar with long-handled pliers, takes it out from the molybdenum wire furnace and sends it to the high-speed rotary swaging machine to process the tungsten rod. Half of it, and then the other half of the tungsten rod is swaged after heating to achieve the purpose of reducing the diameter of the whole rod at the same time, and the rotary hammer forging is repeated until the requirement is met. Rotary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/16B21B3/00B23K35/32B23K35/02
CPCB21B1/16B21B3/00B23K35/32B23K35/222B23K35/0205B23K35/0216B23K35/0261
Inventor 刘山宇章德铭侯玉柏丁舜彭鹰王芦燕张宇晴李曹兵
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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