Titanium-containing copper-based powder metallurgy friction material and preparation method thereof

A technology of powder metallurgy and friction materials, which is applied in the field of copper-based powder metallurgy friction materials containing titanium and its preparation, can solve the problems of unstable friction coefficient, increased wear, poor friction performance at high temperature, etc., to improve the comprehensive friction and wear performance, Effects of hardness increase, friction coefficient and wear loss reduction

Inactive Publication Date: 2021-04-16
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Through the above analysis, the existing problems and defects of the existing technology are as follows: With the continuous increase of load and speed, the original copper-based powder metallurgy friction material gradually has the disadvantages of increased wear, unstable friction coefficient and poor high-temperature friction performance.

Method used

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  • Titanium-containing copper-based powder metallurgy friction material and preparation method thereof
  • Titanium-containing copper-based powder metallurgy friction material and preparation method thereof
  • Titanium-containing copper-based powder metallurgy friction material and preparation method thereof

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preparation example Construction

[0032] Such as figure 1 As shown, the preparation method of the titanium-containing copper-based powder metallurgy friction material provided by the embodiment of the present invention includes the following steps:

[0033] S101 , preparing electrolytic copper powder and reduced iron powder; respectively putting the prepared electrolytic copper powder and reduced iron powder into a ball mill for ball milling for 2-3 hours.

[0034] S102, put the titanium powder, flake graphite powder, molybdenum disulfide powder and silicon dioxide powder into an oven to dry respectively, and dry the dried titanium powder, flake graphite powder, molybdenum disulfide powder and silicon dioxide powder respectively. screen.

[0035] S103, weigh the molybdenum disulfide, metal carbide and copper fiber respectively according to the formula and pour them into a ball mill for mixed wet grinding, and obtain a premixed material after ball milling.

[0036] S104, add 5% carboxymethyl cellulose aqueous s...

Embodiment 1

[0071] The preparation method of titanium-containing copper-based powder metallurgy friction material is as follows:

[0072] (1) Prepare 30 parts of electrolytic copper powder and 20 parts of reduced iron powder; put the prepared electrolytic copper powder and reduced iron powder into a ball mill for ball milling for 2-3 hours.

[0073] (2) Put 15 parts of titanium powder, 6 parts of flake graphite powder, 10 parts of molybdenum disulfide powder and 8 parts of silicon dioxide powder into the oven for drying, and dry the dried titanium powder, flake graphite powder, disulfide Molybdenum powder and silicon dioxide powder were sieved separately.

[0074] (3) According to the formula, 10 parts of molybdenum disulfide, 5 parts of metal carbide and 3 parts of copper fiber were weighed and poured into a ball mill for mixed wet grinding, and the premix was obtained after ball milling.

[0075] (4) Add 5% carboxymethyl cellulose aqueous solution to the obtained premix, heat, start th...

Embodiment 2

[0081] The preparation method of titanium-containing copper-based powder metallurgy friction material is as follows:

[0082] (1) Prepare 40 parts of electrolytic copper powder and 30 parts of reduced iron powder; put the prepared electrolytic copper powder and reduced iron powder into a ball mill for ball milling for 2-3 hours.

[0083] (2) Put 20 parts of titanium powder, 10 parts of flake graphite powder, 15 parts of molybdenum disulfide powder and 10 parts of silicon dioxide powder into the oven for drying, and dry the dried titanium powder, flake graphite powder, disulfide Molybdenum powder and silicon dioxide powder were sieved separately.

[0084] (3) According to the formula, 15 parts of molybdenum disulfide, 7 parts of metal carbide and 4 parts of copper fiber were weighed and poured into a ball mill for mixing and wet grinding, and a premix was obtained after ball milling.

[0085] (4) Add 5% carboxymethyl cellulose aqueous solution to the obtained premix, heat, sta...

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Abstract

The invention belongs to the technical field of powder metallurgy friction materials, and discloses a titanium-containing copper-based powder metallurgy friction material and a preparation method of the titanium-containing copper-based powder metallurgy friction material comprises, by mass part, 30-45 parts of electrolytic copper powder, 20-35 parts of reduced iron powder, 15-25 parts of titanium powder, 10-22 parts of molybdenum disulfide, 8-15 parts of silicon dioxide, 6-14 parts of crystalline flake graphite powder, 5-8 parts of metal carbide and 3-5 parts of copper fiber. According to the titanium-containing copper-based powder metallurgy friction material and the preparation method thereof, the copper powder, iron powder and titanium powder are adopted as raw materials, various components and proportions of the material are scientifically designed, and the titanium-containing copper-based powder metallurgy friction material with excellent mechanical properties is successfully prepared through the processes of burdening, ball milling, drying, granulating, forming, sintering and the like. Meanwhile, metal carbide is reasonably selected to be matched with other raw materials according to actual working condition requirements, the advantages of the ceramic friction component are exerted, and the comprehensive friction and abrasion performance of the material is improved.

Description

technical field [0001] The invention belongs to the technical field of powder metallurgy friction materials, and in particular relates to a titanium-containing copper-based powder metallurgy friction material and a preparation method thereof. Background technique [0002] At present, powder metallurgy is an industrial technology for producing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to produce metal materials, composite materials and various types of products. Powder metallurgy technology has been widely used in transportation, machinery, electronics, aerospace, weapons, biology, new energy, information and nuclear industries, and has become one of the most dynamic branches of new material science. Powder metallurgy technology has a series of advantages such as significant energy saving, material saving, excellent performance, high product precision and good stability, and is very suitable f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/14C22C49/02C22C49/14C25C5/02B22F9/22B22F9/04B22F9/02B22F3/14
Inventor 王志刚张阳明杨慷孙红英李军苗沛霖高峰
Owner ANYANG INST OF TECH
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