Sintered metal matrix friction sheet and deep processing production technology thereof

A sintered metal and production process technology, applied in the direction of friction linings, mechanical equipment, etc., can solve the problems of unstable product quality, large investment in production process, low production efficiency, etc., to solve the problem of large tonnage pressing equipment, small number of equipment, The effect of high machining accuracy

Inactive Publication Date: 2013-02-20
SHANGHAI HEWEI IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of the existing production process of sintered metal-based friction materials, such as large investment, complex process, low production efficiency, unstable product quality and uncontrollable quality, thereby providing a sintered metal-based friction material Material deep processing production process and sintered metal-based friction material

Method used

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  • Sintered metal matrix friction sheet and deep processing production technology thereof
  • Sintered metal matrix friction sheet and deep processing production technology thereof
  • Sintered metal matrix friction sheet and deep processing production technology thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1 Sintered copper-based friction plate and its preparation method

[0041] like figure 2 , 3 As shown, the thickness of the production steel back is 1.2mm, the total thickness of the copper-based friction plate is 2.0mm, and has two upper and lower friction layers; the composition formula of the copper-based friction material powder mixture is: copper 67.0%, lead 5.0%, tin 4.0%, silicon dioxide 8.0%, graphite 6.0% and iron 10.0%; percentages are mass percentages.

[0042] 1. Powder preparation: Dosing and weighing according to the composition formula of the copper-based friction material powder mixture, and put it into a "V" type mixer for mixing. The mixing time is 2 hours.

[0043] 2. Preparation of the steel back: Cut the 45Mn steel plate into strips with a width of 98 mm, plate copper on both sides, and the thickness of the copper layer is 12 μm.

[0044] 3. Powder spreading: spread the prepared copper-based friction material powder mixture on the ste...

Embodiment 2

[0052] Example 2 Sintered copper-based friction plate and its preparation method

[0053] like figure 2 As shown, the thickness of the production steel back is 1.2mm, the total thickness of the copper-based friction plate is 1.6mm, and has one friction layer; the composition formula of the copper-based friction material powder mixture is: copper 67.0%, lead 5.0%, tin 4.0% , silicon dioxide 8.0%, graphite 6.0% and iron 10.0%; percentages are mass percentages.

[0054] 1. Powder preparation: Dosing and weighing according to the composition formula of the copper-based friction material powder mixture, and put it into a "V" type mixer for mixing, and the mixing time is 4 hours.

[0055] 2. Steel back preparation: Cut the 45Mn steel plate into strips with a width of 98mm, plate copper on one side, and the thickness of the copper plated layer is 12μm.

[0056] 3. Powder spreading: spread the prepared copper-based friction material powder mixture on the steel back with a powder sp...

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Abstract

The invention discloses a deep processing production technology of a sintered metal matrix friction sheet and a sintered metal matrix friction sheet prepared by the production technology. The sintered metal matrix friction sheet comprises a steel backing layer and one or two friction layers. The production technology includes the steps of powder spread, primary sintering, primary rolling, secondary sintering, secondary rolling, annealing treatment, and stamping to obtain the sintered metal matrix friction sheet. The defects that prior sintered metal matrix friction materials are large in production technology investment, complicated in processing, low in production efficiency, unstable in product quality, uncontrollable and the like are overcome, the method can be applicable to the production of iron-based and copper-based friction materials, the thicknesses of the steel layer and the friction layers can be controlled respectively, the control accuracy is high, the finished product qualities of the friction sheets are stable, the device investment is small, the operation is simple, and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of powder sintering, in particular to a deep-processing production process of a sintered metal-based friction plate, and a sintered metal-based friction plate produced thereby. Background technique [0002] Sintered metal friction materials are the key components for manufacturing clutches and brakes. The main components of the material include metal substrates, anti-friction additives and wear-resistant additives, among which anti-friction additives and anti-wear additives such as lead, bismuth, tin, etc. Metals with low melting points, and non-metallic substances such as graphite, molybdenum disulfide, barium sulfate, silicon dioxide, and silicon carbide. [0003] Metal-based friction materials are composed of a mixture of metal and non-metal powders, and the content of non-metal components is very high, which reduces the strength of the metal matrix and deteriorates the compaction performance of the mixed...

Claims

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Application Information

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IPC IPC(8): B22F3/10B22F7/04F16D69/02
Inventor 陈进添
Owner SHANGHAI HEWEI IND
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