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High temperature wear resistant alloy

A high-temperature wear-resistant alloy, heavy-duty transmission technology, which is used in the field of materials for making low-speed, heavy-duty transmission shaft supports, and can solve problems such as short service life

Inactive Publication Date: 2005-05-18
贾现书 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in engineering applications, bakelite tiles are not suitable for operation at high temperatures, while tiles made of copper tiles, copper alloys, powder metallurgy, etc. have a short service life, especially in the case of impact

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The manufacturing process of this alloy is no different from that of general ferroalloys. The electric furnace is used for smelting, and the technological process is batching-melting-oxidation-slagging-reduction-oxygen blowing-casting-annealing. Ferro-molybdenum, nickel, and ferro-tungsten can be added with scrap steel or at the end of melting, and ferromanganese and ferrochrome can be added in the reduction stage. These processes are mature processes for smelting ferroalloys in general, and the content of various added elements is also standard. However, niobium steel, iron sulfur and trace rare earths are added to the furnace or added to the steel with the steel flow before being released from the furnace. After being made into a material, as long as the niobium content in the alloy accounts for 0.5-2% of the total weight of the alloy, and the sulfur content is 2.5-6%.

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PUM

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Abstract

The high temperature wear resistant alloy for manufacturing low speed and heavy load transmission shaft bearing is produced through electric furnace smelting including melting ferromolybdenum, nickel, ferrotungsten and waste steel, oxidation, eliminating slag, reduction and adding ferromanganese and ferrochromium. It features the addition of ferrocolumbium and iron sulfide to result in Nb content of 0.5-2 wt% and S content of 2.5-6 wt% in the alloy product. The material is superior to traditional high temperature self-lubricant material and has high antifatigue performance, antioxidant performance, high temperature creepage resistance and less crack, and is especially use in the bush, guides and guards, protecting board, etc. in harsh environment.

Description

1. Technical field: [0001] This invention relates to a material for low speed, heavy duty transmission shaft bearings. 2. Technical background: [0002] Currently used to support low-speed, heavy-duty drive shafts are mostly bakelite tiles, copper tiles, copper alloys, powder metallurgy tiles, slide plates, and ball joints. However, in engineering applications, bakelite tiles are not suitable for operation at high temperatures, while tiles made of copper tiles, copper alloys, powder metallurgy, etc. have a short service life, especially in the case of impact. 3. Contents of the invention: [0003] The invention aims at making a high-temperature and wear-resistant new alloy material with high temperature resistance, long service life, strong working reliability and wide application range. [0004] The invention adopts electric furnace smelting. In the electric furnace smelting process of ferroalloy, ferromolybdenum, nickel and ferrotungsten are added to the smelting furnac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04C22C38/00
Inventor 贾现书武志江
Owner 贾现书
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