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High-chromium alloy wear-resisting microsphere and preparation process thereof

A high-chromium alloy and preparation process technology, applied in the field of wear-resistant microspheres, can solve the problems of inability to effectively control wear resistance and corrosion resistance, increase the cost of wear-resistant microspheres, and affect production, etc. The effect of increasing hardness, improving tempering resistance and hardenability

Inactive Publication Date: 2016-03-16
ANHUI SANFANG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current processing technology cannot effectively make wear-resistant balls with strong wear-resistant and corrosion-resistant properties. During use, broken balls often occur, which seriously affects production, and wear-resistant balls are now being processed. Some wear-resistant ball manufacturing processes can no longer meet the needs of production and processing. The current mechanical processing often requires wear-resistant microspheres with higher process requirements for processing, and the processing technology of wear-resistant microspheres is also more than general wear-resistant The ball process is complicated, and at the same time it increases the cost of preparing wear-resistant microspheres, and the preparation and processing make the wear-resistant and corrosion-resistant can not be effectively controlled

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment provides a kind of high chromium alloy wear-resistant microsphere, the weight composition of the chemical composition of raw material is: C: 2.1%, Cr: 14%, Mn: 1.3%, Si: 0.15%, S: 0.68%, Al : 0.13%, Mo: 0.12%, Pb: 0.05%, Bi: 0.05%, Ti: 0.04%, and the rest is Fe.

[0020] A preparation process of high chromium alloy wear-resistant microspheres, characterized in that the steps are as follows:

[0021] 1) Mix the raw materials, burn them into molten iron, and cast them in one shot at the same time;

[0022] 2) Keep the cast wear-resistant microspheres at a temperature of 700°C for 0.5 hours, then water-cool to room temperature;

[0023] 3), raise the temperature of the wear-resistant microspheres in step 2) to 840°C, keep the temperature for 0.35 hours, and cool to room temperature with water;

[0024] 4) Raise the temperature of the wear-resistant microspheres in step 3) to 470° C., keep it warm for 0.2 hours, and cool naturally to room temperature.

[...

Embodiment 2

[0028] This embodiment provides a kind of high chromium alloy wear-resistant microsphere, the weight composition of the chemical composition of raw material is: C: 2%, Cr: 14%, Mn: 1.2%, Si: 0.18%, S: 0.6%, Al : 0.14%, Mo: 0.11%, Pb: 0.05%, Bi: 0.04%, Ti: 0.03%, and the rest is Fe.

[0029] A preparation process of high chromium alloy wear-resistant microspheres, characterized in that the steps are as follows:

[0030] 1) Mix the raw materials, burn them into molten iron, and cast them in one shot at the same time;

[0031] 2) Keep the cast wear-resistant microspheres at a temperature of 610°C for 0.8 hours, and then water-cool to room temperature;

[0032] 3), raise the temperature of the wear-resistant microspheres in step 2) to 870°C, keep the temperature for 0.5 hours, and cool to room temperature with water;

[0033] 4), raise the temperature of the wear-resistant microspheres in step 3) to 510° C., keep it warm for 0.2 hours, and cool it down to room temperature natura...

Embodiment 3

[0037] This embodiment provides a kind of wear-resistant microsphere of high chromium alloy, the weight composition of the chemical composition of raw material is: C: 2.5%, Cr: 14.5%, Mn: 1.3%, Si: 0.1%, S: 0.7%, Al : 0.11%, Mo: 0.12%, Pb: 0.06%, Bi: 0.03%, Ti: 0.04%, and the rest is Fe.

[0038] A preparation process of high chromium alloy wear-resistant microspheres, characterized in that the steps are as follows:

[0039] 1) Mix the raw materials, burn them into molten iron, and cast them in one shot at the same time;

[0040] 2) Keep the cast wear-resistant microspheres at a temperature of 680°C for 0.4 hours, then water-cool to room temperature;

[0041] 3), raise the temperature of the wear-resistant microspheres in step 2) to 820°C, keep the temperature for 0.4 hours, and cool to room temperature with water;

[0042] 4) Raise the temperature of the wear-resistant microspheres in step 3) to 450° C., keep the temperature for 0.3 hours, and cool down to room temperature ...

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Abstract

The invention provides a high-chromium alloy wear-resisting microsphere and a preparation process thereof. The chemical components of the raw materials include, by weight, 2.0-2.5% of C, 14-15% of Cr, 1.2-1.5% of Mn, 0.1-0.2% of Si, 0.6-0.7% of S, 0.1-0.14% of Al, 0.1-0.12% of Mo, 0.05-0.07% of Pb, 0.02-0.05% of Bi, 0.01-0.04% of Ti and the balance Fe. By controlling the proportion relationship of elements in the raw materials, the wear resistance and corrosion resistance of the prepared high-chromium alloy wear-resisting microsphere are further improved, the preparation process is simplified at the same time, and the high-chromium alloy wear-resisting microsphere and the preparation process thereof meet the requirement of modern mechanical industry production and can be further applied and popularized.

Description

technical field [0001] The invention relates to the field of wear-resistant microspheres, in particular to a high-chromium alloy wear-resistant microsphere and a preparation process thereof. Background technique [0002] With the development of industry, the level of mechanized manufacturing in all walks of life is also constantly improving. The use of wear-resistant balls is also often used in current machinery, especially in mine processing machinery. Wear-resistant balls are used in ball mills. The waste crushing medium used to crush the materials of the mill is often used in metallurgical mines, cement building materials, magnetic materials, chemical industry and other fields. It needs to have strong corrosion resistance and wear resistance. [0003] However, the current processing technology cannot effectively make wear-resistant balls with strong wear-resistant and corrosion-resistant properties. During use, broken balls often occur, which seriously affects production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/60C22C33/04
CPCC22C38/60C22C33/04C22C38/002C22C38/02C22C38/04C22C38/06C22C38/22C22C38/28C22C38/36
Inventor 仰明李和成
Owner ANHUI SANFANG NEW MATERIAL TECH CO LTD