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High-purity molybdenum filament and production method thereof

A production method and molybdenum wire technology are applied in the production field of high-purity molybdenum wire, which can solve the problems of low processing performance, high wire breakage rate, unfavorable industrialized mass production, etc., and achieve the effect of saving energy and materials

Inactive Publication Date: 2009-09-02
盛华伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the content of metal impurities in the MoO2 raw material is high, the content of harmful impurities in the produced molybdenum wire will be high, so that in the subsequent press processing, the processing performance will be low and the broken wire rate will be high
In the past, acid was used as detergent in the industry. The production process not only lacks environmental protection, but also does not require harmless treatment of the treated detergent, and requires a lot of equipment and processing costs, which is not conducive to industrialized mass production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] Deionized water is placed in the washing pot, heat up (in order to dissolve TMA-52 chelating agent faster), add TMA-52 chelating agent, TMA-52 chelating agent is completely dissolved in deionized water, forming a volume concentration of 10% TMA-52 chelating agent solution. Will MoO 2 Add to the washing pot and stir well for 30±5min, wait for the MoO 2 After 30 minutes of precipitation, pour out the TMA-52 chelating agent solution, and take out the MoO 2 , dried at a temperature of 200°C to 250°C for 6h, the dried MoO 2 Molybdenum wire is produced by reducing molybdenum powder, pressing molybdenum billets, sintering molybdenum billets, forging molybdenum rods, and wire drawing. The molybdenum content in the molybdenum wire is 99.984% by weight.

example 2

[0015] Deionized water is placed in the washing pot, heat up (in order to dissolve TMA-52 chelating agent faster), add TMA-52 chelating agent, TMA-52 chelating agent is completely dissolved in deionized water, forming a volume concentration of 12.5% TMA-52 chelating agent solution. Will MoO 2 Add to the washing pot and stir fully for 30min, wait for the MoO 2 Precipitate for 35 minutes, pour out the TMA-52 chelating agent solution, and take out the MoO 2 , dried at a temperature of 200°C to 250°C for 6.5h, the dried MoO 2 Molybdenum wire is produced by reducing molybdenum powder, pressing molybdenum billets, sintering molybdenum billets, forging molybdenum rods, and wire drawing. The molybdenum content in the molybdenum wire is 99.986% by weight.

example 3

[0017] Deionized water is placed in the washing pot, heat up (in order to dissolve TMA-52 chelating agent faster), add TMA-52 chelating agent, TMA-52 chelating agent is completely dissolved in deionized water, forming a volume concentration of 15% TMA-52 chelating agent solution. Will MoO 2 Add to the washing pot and stir fully for 30min, wait for the MoO 2 After 40 minutes of precipitation, the TMA-52 chelating agent solution was poured out, and the MoO 2 , dried at a temperature of 200°C to 250°C for 7h, the dried MoO 2 Molybdenum wire is produced by reducing molybdenum powder, pressing molybdenum billets, sintering molybdenum billets, forging molybdenum rods, and wire drawing. The molybdenum content in the molybdenum wire is 99.986% by weight.

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PUM

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Abstract

The invention discloses a high-purity molybdenum filament and a production method thereof, relates to a metal material production process, in particular to a method for producing the high-purity molybdenum filament. The production method comprises the following steps: dissolving TMA-52 chelon into deionized water to form a TMA-52 chelon solution as a MoO2 raw material cleaner; drying the washed MoO2; sequentially performing molybdenum powder reduction, molybdenum bank strip pressing, molybdenum bank strip sintering, and molybdenum rod forging and rolling; and finally forming more than or equal to 99.984 percent of molybdenum filament through wiredrawing. The invention can effectively remove Fe, Ni and Mg and the other harmful metallic impurities in the MoO2 so as to guarantee that the produced molybdenum filament has high molybdenum content. The TMA-52 chelon solution is used as the cleaner, which ensures that the whole production process achieves green, environmental protection, and great conservation of the energy and the materials.

Description

technical field [0001] The invention relates to a production process of metal materials, especially a production method of high-purity molybdenum wire. Background technique [0002] The process step of producing molybdenum wire is usually to use washing liquid to remove MoO 2 Raw materials are fully washed and dried, MoO 2 It is then reduced to high-purity molybdenum powder. Next, the high-purity molybdenum powder is pressed into a molybdenum billet, and the molybdenum billet is sintered to make a high-purity molybdenum billet. Then, the high-purity molybdenum bar is forged and rolled into a high-purity molybdenum rod, and finally drawn into a high-purity molybdenum wire through a multi-pass wire drawing machine. Washing solution for MoO 2 Raw materials are washed to remove metal impurities. If MoO 2 If the content of metal impurities in the raw material is high, the content of harmful impurities in the produced molybdenum wire will be high, so that in the subsequent p...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 盛华伟李东峰
Owner 盛华伟
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