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Powder metallurgy brake caliper iron alloy and manufacturing method thereof

A technology of powder metallurgy and brake caliper, which is applied in the field of powder metallurgy brake caliper ferroalloy and its preparation, can solve the problems of complex process and high cost, and has the effect of good accessibility and cost reduction

Inactive Publication Date: 2013-11-27
ANHUI RUITAI AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing brake calipers are all forged or cut, the process is complicated and the cost is high

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] A powder metallurgy brake caliper iron alloy, made from the following raw materials (kg) by weight:

[0020] Iron powder 99, chromium powder 8.8, boron nitride 1.4, bismuth 0.12, graphite 0.6, Sb0.02, Bi0.9, Yb0.02, ZnO1.4, boron oxide 0.6, nano-bentonite 1.2, chromium boride 0.2, microcrystalline Wax 3, Dispersant 3.

[0021] Described dispersant is made of the following raw materials by weight: polyvinyl alcohol 7, zinc stearate 3, ethylene base bis-stearamide 1, aluminum nitride powder 2, butyl tin mercaptide 2, alkylphenol Polyoxyethylene ether 2, chromium boride 2, ditetradecyl alcohol ester 2. The preparation method is as follows: mixing the materials, grinding and dispersing them evenly.

[0022] The preparation method of powder metallurgy brake caliper iron alloy comprises the following steps:

[0023] (1) Mix the materials, stir evenly for 40-50 minutes at 50-55°C, put them into the mold, and press into a blank;

[0024] (2) Put the compact in a sinterin...

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Abstract

Provided are powder metallurgy brake caliper iron alloy and a manufacturing method thereof. The powder metallurgy brake caliper iron alloy is characterized by comprising, by weight, 95-99 parts of iron powder, 1.4-1.8 parts of chromium powder, 1.2-1.4 parts of boron nitride, 0.12-0.15 part of bismuth, 0.4-0.6 part of graphite, 0.02-0.04 part of Sb, 0.9-1.2 parts of Bi, 0.01-0.02 part of Yb, 1.2-1.4 parts of ZnO, 0.4-0.6 part of boric oxide, 1.2-1.4 parts of nanometer bentonite, 0.2-0.4 part of chromium boride, 3-3.6 parts of microcrystalline wax, and 2-3 parts of dispersing agents. The powder metallurgy brake caliper iron alloy increases the chromium content, performance is good, and brake caliper performance requirements can be met; a powder metallurgy process is adopted, and cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of powder metallurgy, in particular to a powder metallurgy brake caliper iron alloy and a preparation method thereof. Background technique [0002] Powder metallurgy technology is a new technology that perfectly combines material science and metal forming technology. It is widely used in various industries because of its high efficiency, no cutting, material saving, energy saving and environmental protection. [0003] The material composition of powder metallurgy structural parts is not limited by smelting. It can be added with alloy components or other structural components, and can be adjusted according to requirements within a considerable range, so that the mechanical properties can be matched with steel parts. Effect. [0004] Powder metallurgy has a high degree of mechanization, which can not only reduce personnel, but also improve efficiency, thereby saving costs. Powder metallurgy technology can replace the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C22C33/02
Inventor 张李华
Owner ANHUI RUITAI AUTO PARTS
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