Laser melting deposition-based automobile clutch facing and preparation method thereof

A clutch face, laser melting technology, used in clutches, friction clutches, mechanical drive clutches, etc., can solve the problems of the degree of carburization is not easy to control, the face is prone to breakage, etc., to avoid carburization, good physical Mechanical properties, the effect of good friction properties

Inactive Publication Date: 2017-11-28
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the carburization phenomenon in the sintering process of the sintered metal friction material, and the degree of carburization is not easy to control, the face of the clutch is prone to fracture in practical applications

Method used

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  • Laser melting deposition-based automobile clutch facing and preparation method thereof
  • Laser melting deposition-based automobile clutch facing and preparation method thereof
  • Laser melting deposition-based automobile clutch facing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of preparation based on the automobile clutch surface of laser fusion deposition, its preparation method comprises the steps:

[0032] 1) Take 10.88g of TiC powder, 5.44g of hBN powder, 0.816g of B powder, 118g of Ni powder and 18g of Al powder as raw materials, weigh each raw material according to the proportion, wherein the molar ratio of Ni powder to Al powder is 3:1, TiC The addition amount of powder is 8.0% of the total mass of Ni powder and hBN powder, the addition amount of hBN powder is 4.0% of the total mass of Ni powder and Al powder, and the addition amount of B powder is 0.6% of the total mass of Ni powder and Al powder;

[0033] 2) Place the weighed raw materials in a vibratory mixer for vibratory mixing. The vibration frequency used is 35 Hz, the vibration force is 9000 N, and the vibration time is 30 minutes, and the raw materials are fully mixed evenly;

[0034] 3) Evacuate the high-temperature melting furnace to a vacuum degree of <0.01MPa, and fil...

Embodiment 2

[0039] A kind of preparation based on the automobile clutch surface of laser fusion deposition, its preparation method comprises the steps:

[0040] 1) Take 14.96g of TiC powder, 6.80g of hBN powder, 0.952g of B powder, 118g of Ni powder and 18g of Al powder as raw materials, weigh each raw material according to the proportion, wherein the molar ratio of Ni powder to Al powder is 3:1, The addition amount of TiC powder is 11% of the total mass of Ni powder and Al powder, the addition amount of hBN powder is 5.0% of the total mass of Ni powder and Al powder, and the addition amount of B powder is 0.7% of the total mass of Ni powder and Al powder ;

[0041] 2) Place the weighed raw materials in a vibratory mixer for vibratory mixing. The vibration frequency used is 40 Hz, the vibration force is 10000 N, and the vibration time is 25 minutes, and the raw materials are fully mixed evenly;

[0042] 3) Evacuate the high-temperature melting furnace to a vacuum degree of <0.01MPa, fill...

Embodiment 3

[0047] A kind of preparation based on the automobile clutch surface of laser fusion deposition, its preparation method comprises the steps:

[0048] 1) Take 16.32g of TiC powder, 8.16g of hBN powder, 1.088g of B powder, 118g of Ni powder and 18g of Al powder as raw materials, weigh each raw material according to the proportion, wherein the molar ratio of Ni powder to Al powder is 3:1, TiC The addition amount of powder is 12.0% of the total mass of Ni powder and Al powder, the addition amount of hBN powder is 6.0% of the total mass of Ni powder and Al powder, and the addition amount of B powder is 0.8% of the total mass of Ni powder and Al powder;

[0049] 2) Place the weighed raw materials in a vibratory mixer for vibratory mixing. The vibration frequency used is 45 Hz, the vibration force is 11000 N, and the vibration time is 20 minutes, and the raw materials are fully mixed evenly;

[0050] 3) Evacuate the high-temperature melting furnace to a vacuum degree of <0.01MPa, and ...

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Abstract

The invention discloses a preparation of a laser melting deposition-based automobile clutch facing. The laser melting deposition-based automobile clutch facing is prepared by sequentially carrying out melting, high-pressure water atomization and laser melting deposition on the TiC powder, hexagonal boron nitride (hBN) powder, B powder, Ni powder and Al powder which are taken as raw materials. The clutch facing has good physical and mechanical properties and better friction properties and thermal stability. Furthermore, the technological parameters are easy to control in a preparation process, so that the preparation method of the laser melting deposition-based automobile clutch facing is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of friction materials and their preparation, and in particular relates to an automobile clutch face plate based on laser fusion deposition and a preparation method thereof. Background technique [0002] The clutch is a component in the car transmission system that is directly connected to the engine. As a key component of a car, the main function of the clutch is to transmit and cut off the power transmitted from the engine to the transmission system, so as to ensure the smooth start of the car, smooth shifting and prevent the transmission system from overloading, and can effectively reduce the vibration and noise in the transmission system ([1] Guo Jing, Li Quanjie. Check calculation of clutch separation system [J]. Theoretical Research on Urban Construction: Electronic Edition, 2016(11).). When the clutch is in the engaged state, its main and driven parts rotate together as a whole to directly transmit th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C19/03C22C32/00B22F9/08B22F1/00F16D13/64F16D69/02
CPCF16D13/64F16D69/02C22C19/03C22C32/0047C23C24/103B22F9/082F16D2250/0046F16D2200/0026B22F1/065
Inventor 史晓亮闫昭黄玉春邓骁斌刘锡尧杨慷薛冰章桥新
Owner WUHAN UNIV OF TECH
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