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Scraper corrosion-resistant ledge casting material

A technology of corrosion resistance and scraper machine, which is applied in the field of corrosion-resistant groove side casting materials of scraper machine, can solve the problems of poor wear resistance and poor corrosion resistance of groove side, and achieve high corrosion resistance, improved wear resistance, and strength high effect

Inactive Publication Date: 2013-07-24
LINZHOU HEAVY MACHINE CASTING AND FORGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of poor corrosion resistance and poor wear resistance of the groove sides in the prior art, the invention provides a groove side casting material with high strength, improved wear resistance and corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A scraper machine corrosion-resistant groove side casting material is prepared from the following raw materials, such as the raw materials required for 1000kg of materials: C: 1.7kg, Si: 3.8kg, Mn: 6.5kg, P: 0.2kg, S: 0.2 kg, Cr: 22.5kg, Ni: 7.5kg, Fe: 957.6kg, the method of casting the groove side with this material is the same as the conventional groove side casting method.

Embodiment 2

[0013] A scraper machine corrosion-resistant groove side casting material, prepared from the following raw materials, such as the raw materials required for 1000kg material: C: 1.5kg, Si: 3.0kg, Mn: 5.0kg, Cr: 20.0kg, Ni: 6.0 kg, Fe: 964.5kg, the method of casting the channel side with this material is the same as the conventional channel side casting method.

Embodiment 3

[0015] A scraper machine corrosion-resistant groove side casting material, prepared from the following raw materials, such as the raw materials required for 1000kg material: C: 1.75kg, Si: 3.5kg, Mn: 5.80kg, P: 0.15kg, S: 0.13 kg, Cr: 23.0kg, Ni: 9.0kg, Fe: 956.67kg, the method of casting the channel side with this material is the same as the conventional channel side casting method.

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PUM

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Abstract

The invention relates to a scraper corrosion-resistant ledge casting material. The material is prepared through using the following raw materials, by mass, 0.15-0.20% of C, 0.30-0.45% of Si, 0.50-0.80% of Mn, 0.035% or less of P, 0.035% or less of S, 2.00-2.50% of Cr, 0.60-0.90% of Ni, and the balance Fe. The material provided by the invention is obtained through adding Cr and Ni to a common ledge chemical component reaching a mechanical industrial standard ZG30SiMn, a Cr alloy has a high strength and a corrosion resistance, and an alloy material comprising the Cr alloy, Fe and Ni has the advantages of corrosion resistance, wear resistance and high strength.

Description

technical field [0001] The invention relates to a casting material for corrosion-resistant groove sides of a scraper machine. Background technique [0002] At present, the chemical composition of ordinary groove sides is the machinery industry standard ZG30SiMn: C: 0.25-0.35%, Si: 0.60-0.80%, Mn: 1.10-1.40%, P≤0.040%, S≤0.040%, and the groove sides made of it The corrosion resistance is poor, the wear resistance is poor, the service life is short, and frequent maintenance and replacement are required, which affects the normal operation of coal mining. At the beginning of 2010, due to the high sulfur content and very humid underground coal seams of some coal mines, corrosion-resistant scraper machine middle grooves were required, and the above-mentioned groove sides could not meet the high sulfur working conditions in the underground coal seams of coal mines. Contents of the invention [0003] Aiming at the problems of poor corrosion resistance and poor wear resistance of ...

Claims

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Application Information

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IPC IPC(8): C22C38/40B65G19/22
Inventor 安晓文吕朝郭鉴文路虎吉苏俊奇
Owner LINZHOU HEAVY MACHINE CASTING AND FORGING CO LTD