Anti-heat wear-resisting lubricating reducing wear alloy casting steel material

A technology for alloy casting steel and alloy castings, which is applied in the field of heat-resistant, wear-resistant, lubricating and anti-friction alloy casting steel materials, can solve the problems of shortened service life of rolling bearings, loss of lubricating grease, time-consuming and laborious repairs, etc., and achieves good anti-seizure wear resistance. damage, good anti-adhesion, wide application effect

Inactive Publication Date: 2007-07-18
侯贵敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the rolling bearings, copper sleeves and copper tiles used in the cutting front raceway of the continuous casting machine in the steelmaking plant, due to the high ambient temperature, a lot of water and iron oxide chips, coupled with the action of high temperature and water, the lubricating grease will be lost, which will not be effective. The lubrication effect shortens the service life of rolling bearings, and the service time is only about one month, and some even only use for one week
After the bearing fails, the raceway is stuck and cannot operate normally, seriously affecting the surface quality of the continuous casting slab, and the repair is time-consuming and laborious, and the maintenance cost is greatly increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0009] The specific operation steps of the preparation method of the heat-resistant and wear-resistant self-lubricating and wear-reducing alloy cast steel material of the present invention are as follows:

[0010] First, add No. 10 ironmaking pig iron to the bottom of the intermediate frequency electric furnace. After starting the electric furnace, add scrap steel and melt it while feeding; deoxidize after melting; , ferromanganese and ferrosilicon. After all the above materials are melted, add ferrovanadium 5 minutes before coming out of the furnace, and add aluminum rods for final deoxidation. The tapping temperature is 1560-1600°C, and the pouring temperature is 1500-1520°C. Before tapping, divide the DY-3 heavy rare earth and silicon barium into several parts, put them into the bottom of the pouring ladle, and then tap. It can be poured into heat-resistant, wear-resistant, self-lubricating and anti-friction alloy castings for various purposes according to the needs, repla...

Embodiment

[0012] 1. Raw material requirements: chemical composition is calculated by mass percentage

[0013] Steel Scrap: 0.20%, 0.30% Si, 0.50% Mn, 0.40% P, 0.50% S

[0014] Ferro-tungsten: 70.0% W, 0.05% C, No. 10 steelmaking pig iron

[0015] Ferrochrome: 65.0%Cr, 5.00%C, Ferrovanadium: 50.0%V

[0016] Ferromanganese: 60.0% Mn, Heavy rare earth: 55.0% Dy

[0017] Ferrosilicon: 75.0% Si Barium Silicon: 60.0% Si-Ba

[0018] Selenium Alloy: 60.0% Se Aluminum: 98% Ar

[0019] 2. Design chemical composition

[0020] 0.70%C, 0.35%Si, 0.45%Mn, 2.00%Cr, 2.80%W, 3.8%Se, 0.35%V, 0.03%P

[0021] 3. Filling formula:

[0022] The total installed capacity of the furnace is 200 kg (including 3.00% burning loss), of which: No. 10 steelmaking pig iron 20Kg, steel scrap 149Kg, ferrotungsten 8.0Kg, ferrochrome 8.0Kg, selenium alloy 16.5Kg, ferrosilicon 1.0Kg, ferromanganese 1.0Kg, Ferrovanadium 1.0Kg, borax 1.2Kg, heavy rare earth 1.0Kg, silicon aluminum barium 0.5Kg.

[0023] 4. Smelting and ...

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PUM

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Abstract

The present invention relates to one kind of self-lubricating casting steel material and its preparation process. The self-lubricating casting steel material is prepared through smelting with the raw materials including waste steel, ferrochromium, ferrotungsten, ferrovanadium, selenium alloy, heavy RE, etc and casting. The chemical components include Fe, C, Si, Mn, Cr, W, Se, V, Dr, Si, Ba and P. The added Se forms selenide with other metal elements as solid lubricant, and this makes the self-lubricating casting steel material possess excellent self lubricating performance. The self-lubricating casting steel material may be used in producing different castings with excellent antifriction performance, high strength, high toughness and other features.

Description

technical field [0001] The invention relates to a heat-resistant, wear-resistant, lubricating and friction-reducing alloy cast steel material, and a preparation method of the material. Background technique [0002] In some mechanical equipment in the prior art metallurgical industry, the ambient temperature of the conveying raceway is high. For example, the rolling bearings, copper sleeves and copper tiles used in the cutting front raceway of the continuous casting machine in the steelmaking plant, due to the high ambient temperature, a lot of water and iron oxide chips, coupled with the action of high temperature and water, the lubricating grease will be lost, which will not be effective. The lubrication effect shortens the service life of rolling bearings, and the service time is only about one month, and some even only use for one week. After the failure of the bearing, the raceway is stuck and cannot operate normally, seriously affecting the surface quality of the conti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/24C21D1/26C21D11/00C22C33/04C21C7/06B22D27/04
CPCY02P10/20
Inventor 侯贵敏侯玉峰
Owner 侯贵敏
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