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Preparation method of automobile bearing material

A technology for automobile bearings and bearing materials, applied in the field of auto parts processing, can solve the problems of high impact toughness, inconsistent dimensions, large dimensional accuracy errors, etc., to improve high-temperature strength and high-temperature thermal stability, and ensure structural strength and structural stability. Effect

Inactive Publication Date: 2016-07-13
SUZHOU RISING AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the different structural requirements of various parts of the vehicle, some parts require high strength, and some parts require high impact toughness. Therefore, there are parts that require different strengths; currently, when manufacturing parts of vehicles with different strengths, for For parts that require high strength, use heat-treated hardened steel plates to manufacture accessories, and for parts that require low strength, use ordinary steel plates to manufacture, and then connect two or more accessories of different steel types by welding or cold pressing Manufacture of vehicle parts; using materials of different strengths for connection, due to the difference in elastic deformation between materials, there will be inconsistency in size, and the error in size accuracy is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for preparing an automobile bearing material in this embodiment, the chemical composition and mass percentage composition of the bearing material: 24.5% chromium, 6.5% yttrium, 52% titanium, 7.5% bismuth, and the rest is tungsten.

[0020] The preparation method of the present embodiment comprises the steps:

[0021] 1.1 Batching: weigh the ingredients according to the mass percentage content of the above-mentioned element powders;

[0022] 1.2 Ball milling and mixing: the ingredients described in step 1.1 are ball milled, and the ball milled mixture is passed through a 100-mesh sieve;

[0023] 1.3 The sieved mixture is molded to obtain a compact;

[0024] 1.4 Put the above-mentioned green compact into the vacuum chamber and rush into the protective gas for ion bombardment, then heat up and sinter;

[0025] 1.5 In the vacuum chamber, heat up at a heating rate of 15-20°C / min, raise the temperature to 1180°C and keep it warm for 2 hours, then cool down with the...

Embodiment 2

[0028] A method for preparing an automobile bearing material in this embodiment, the chemical composition and mass percentage composition of the bearing material: 26% chromium, 8% yttrium, 56% titanium, 8% bismuth, and the rest is tungsten.

[0029] The preparation method of the present embodiment comprises the steps:

[0030] 1.1 Batching: weigh the ingredients according to the mass percentage content of the above-mentioned element powders;

[0031] 1.2 Ball milling and mixing: the ingredients described in step 1.1 are ball milled, and the ball milled mixture is passed through a 100-mesh sieve;

[0032] 1.3 The sieved mixture is molded to obtain a compact;

[0033] 1.4 Put the above-mentioned green compact into the vacuum chamber and rush into the protective gas for ion bombardment, then heat up and sinter;

[0034] 1.5 In the vacuum chamber, heat up at a heating rate of 15-20°C / min, raise the temperature to 1180°C and keep it warm for 2 hours, then cool down with the furna...

Embodiment 3

[0037] A method for preparing an automobile bearing material in this embodiment, the chemical composition and mass percentage composition of the bearing material: 24.8% chromium, 6.8% yttrium, 54.2% titanium, 7.5% bismuth, and the rest is tungsten.

[0038] The preparation method of the present embodiment comprises the steps:

[0039] 1.1 Batching: weigh the ingredients according to the mass percentage content of the above-mentioned element powders;

[0040] 1.2 Ball milling and mixing: the ingredients described in step 1.1 are ball milled, and the ball milled mixture is passed through a 100-mesh sieve;

[0041] 1.3 The sieved mixture is molded to obtain a compact;

[0042] 1.4 Put the above-mentioned green compact into the vacuum chamber and rush into the protective gas for ion bombardment, then heat up and sinter;

[0043] 1.5 In the vacuum chamber, heat up at a heating rate of 15-20°C / min, raise the temperature to 1180°C and keep it warm for 2 hours, then cool down with t...

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Abstract

The invention discloses a preparation method of an automobile bearing material.The bearing material is prepared from, by mass, chromium 24.5%-26%, yttrium 6.5%-8%, titanium 52%-56%, bismuth 7.5%-12% and the balance tungsten.

Description

technical field [0001] The invention belongs to the technical field of auto parts processing, and in particular relates to an auto bearing material and a preparation method thereof. Background technique [0002] Due to the different structural requirements of various parts of the vehicle, some parts require high strength, and some parts require high impact toughness. Therefore, there are parts that require different strengths; currently, when manufacturing parts of vehicles with different strengths, for For parts that require high strength, use heat-treated hardened steel plates to manufacture accessories, and for parts that require low strength, use ordinary steel plates to manufacture, and then connect two or more accessories of different steel types by welding or cold pressing Manufacture of vehicle parts; using materials of different strengths for connection, due to the difference in elastic deformation between materials, there will be inconsistency in size, and the erro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/04
CPCC22C14/00C22C1/0458
Inventor 岳胜桥龚达锦吴海峰郑福新
Owner SUZHOU RISING AUTO PARTS
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