CN1230634C - Power-transferring metal friction sheet and its machining process - Google Patents
Power-transferring metal friction sheet and its machining process Download PDFInfo
- Publication number
- CN1230634C CN1230634C CN 02160371 CN02160371A CN1230634C CN 1230634 C CN1230634 C CN 1230634C CN 02160371 CN02160371 CN 02160371 CN 02160371 A CN02160371 A CN 02160371A CN 1230634 C CN1230634 C CN 1230634C
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- graphite
- tin
- bronze
- zinc
- mixture
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Abstract
The present invention relates to a power transmission metal friction plate and a making method thereof. The power transmission metal friction plate is mainly composed of the components of the following proportion by weight: 62 to 72% of copper, 3 to 5% of tin, 3 to 5% of zinc, 18 to 26 % of graphite and 2 to 4% of silicon dioxide. The components are mixed evenly and proportionally under the condition that a little light oil is added; then, the components are sintered under the pressure of 16 to 24 kgf/cm 2. Thus, the present invention has the advantages of high material base strength, good cooling effect, high and stable friction coefficient, no friction pair adhesion, good wear-resisting properties, etc., and can ensure that the copper on a friction surface is not transferred.
Description
Technical field
The present invention relates to be a kind ofly be used to realize vehicle speed variation, turn to, transmission of power metal friction sheet and preparation process, especially the tank wet friction sheet and the preparation process of parking, bending moment.
Background technique
In the prior art, the blending ingredients that friction plate adopts usually is based on bronze base, and content of graphite is low, composition and proportioning as following combination: copper Cu content 60-75%, tin Sn content 5-8%, plumbous Pb content 6-10%, content of graphite 5-9%, wherein the composition that also can add or not add has silica SiO
2With iron Fe etc.It is low that this mixed composition made wet friction sheet behind batch mixing and sintering exists heat load allowable, and friction factor is low and unstable, and anti-stick property is poor, thereby failure phenomenon can take place in the actual using process, comprise the fastness bonding, distortion, fractures etc. can not move complete machine.This friction plate that can only be used in the low occasion of heat load, because of through the high specific pressure of daring not accept, high-speed, the operating conditions of high load, material shifts easily, cause that friction factor reduces, friction factor reduces more, and fastness is easy skidding more just, the friction total amount of heat increase that fastness skids more and produces, cause that local and total temperature raises, and finally cause failure phenomenon, thereby it is not suitable for third generation tank transmission of power.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existence, and provide a kind of main employing bronze and brass mold base, transmission of power metal friction sheet and preparation process with high coefficient of friction, this transmission of power metal friction sheet is by bronze and brass mixture C u, tin Sn, silica SiO
2, graphite and zinc Zn mix and form, the weight percentage of above-mentioned each component is: bronze and brass mixture 62-72%, tin 3-5%, zinc 3-5%, graphite 18-26%, silica 2-4%.
Contain bronze and brass mixture 62-67% in the described mixed composition proportioning, tin 3-4%, zinc 4%, graphite 20-25%, silica 3-4%.
A kind of preparation process of transmission of power metal friction sheet, it includes batch mixing and sintering, batch mixing is that mixtures such as bronze and brass mixture, tin, zinc and graphite and silica are being added under a little lightweight oil condition by bronze and brass mixture 62-67%, tin 3-4%, zinc 4%, graphite 20-25%, the ratio of silica 3-4% mixes, carry out sintering then, and the moulding pressure of sintering is 16-24kgf/cm
2
The present invention is owing to adopt bronze and brass mixture as matrix, a high proportion of graphite and a small amount of hard point material, make it have material matrix intensity height, good cooling results, friction factor is high and stable, can guarantee that friction surface copper does not shift, the fastness adhesion, characteristics such as wear-resisting property is good, it can overcome the deficiency of original Properties of Friction Materials, prevents fastness bonding, distortion and fracture; Fastness working life is improved the complete machine fight capability greater than the overhaul phase 12000km of tank.
Embodiment
The present invention will be described in detail below in conjunction with embodiment:
Embodiment 1, bronze with 62% and brass mixture C u, 5% metallic tin Sn, 5% metallic zinc Zn and 24% graphite and 4% silica SiO
2Mix in proportion; Because graphite is compared with metallic copper, tin, zinc; proportion differs greatly; even in order to mix powder; make it not produce segregation or a small amount of segregation in carrying or other operating process; in mixture, add and carry out batch mixing again behind a small amount of light oil and it is mixed, add to depress in air protection then and carry out sintering, in order to improve the strength of materials and to guarantee the bonds well of friction material and steel core plate; when improving sintering temperature normally or suitably, improve sintering pressure to 24kgf/cm
2The foregoing description owing to adopt bronze and brass mixture matrix, contains the material of a high proportion of graphite and a small amount of hard point.Nonmetallic lubricants such as bronze and brass mixture matrix have porosity than pure bronze rheobase height, can firmly wrap up graphite, the hard point and friction constituent element improve material wear ability; The porosity matrix, oil content improves, and when fastness was engaged, very piece passed surperficial dimpling peak district frictional heat, improved the heat load allowable of material, stablized friction factor; Porous tissue, from the friction mechanism analysis, can improve friction factor, a high proportion of graphite has truly contacted buffer action to the fastness metal, prevent that friction material copper from transferring on the antithesis steel disc, prevent fusing, the welding of the true contact area of dimpling, fastness surface material.
Embodiment 2, bronze with 67% and brass mixture C u, 4% metallic tin Sn, 4% metallic zinc Zn and 22% graphite and 3% silica SiO
2Mix in proportion; Add in mixture and carry out batch mixing again behind a small amount of light oil and it is mixed, add to depress in air protection then and carry out sintering, sintering pressure is 20kgf/cm
2
Embodiment 3, bronze with 72% and brass mixture C u, 3% metallic tin Sn, 3% metallic zinc Zn and 20% graphite and 2% silica SiO
2Mix in proportion; Add in mixture and carry out batch mixing again behind a small amount of light oil and it is mixed, add to depress in air protection then and carry out sintering, sintering pressure is 16kgf/cm
2
Claims (3)
1, a kind of transmission of power metal friction sheet, it is by bronze and brass mixture C u, tin Sn, silica SiO
2, graphite and zinc Zn mix and form, above-mentioned each component mixed weight percentage is: bronze and brass mixture C u contain 62-72%, and tin Sn contains 3-5%, and zinc Zn contains 3-5%, and graphite contains 18-26%, silica SiO
2Contain 2-4%.
2, transmission of power metal friction sheet according to claim 1 is characterized in that described mixed composition proportioning medium bronze and brass mixture C u contain 62-67%, and tin Sn contains 3-4%, and zinc Zn contains 4%, and graphite contains 20-25%, silica SiO
2Contain 3-4%.
3, a kind of preparation process of transmission of power metal friction sheet as claimed in claim 1 or 2, it includes batch mixing and sintering, and batch mixing is with bronze and brass mixture C u, tin Sn, zinc Zn and graphite and silica SiO
2Mixture contains 62-67% by bronze and brass mixture C u under a little lightweight oil condition of adding, tin Sn contains 3-4%, and zinc Zn contains 4%, and graphite contains 20-25%, silica SiO
2The ratio that contains 3-4% mixes, and carry out normal sintering then, and the moulding pressure of sintering is at 16-24kgf/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02160371 CN1230634C (en) | 2002-12-30 | 2002-12-30 | Power-transferring metal friction sheet and its machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02160371 CN1230634C (en) | 2002-12-30 | 2002-12-30 | Power-transferring metal friction sheet and its machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1421628A CN1421628A (en) | 2003-06-04 |
| CN1230634C true CN1230634C (en) | 2005-12-07 |
Family
ID=4753435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02160371 Expired - Fee Related CN1230634C (en) | 2002-12-30 | 2002-12-30 | Power-transferring metal friction sheet and its machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1230634C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632962A (en) * | 2014-12-11 | 2015-05-20 | 来安县隆华摩擦材料有限公司 | All-copper core spun yarn friction plate |
| CN107214339B (en) * | 2017-04-28 | 2019-06-04 | 杭州前进齿轮箱集团股份有限公司 | A kind of core plate has the copper-base friction plate production method of integral hardness and high spline precision |
| CN109930021B (en) * | 2017-12-19 | 2021-01-05 | 有研工程技术研究院有限公司 | Copper-based silicon dioxide composite material and preparation method thereof |
| CN115074574B (en) * | 2022-04-18 | 2023-06-02 | 杭州前进齿轮箱集团股份有限公司 | High heat-resistant wet copper-based friction plate and manufacturing method thereof |
-
2002
- 2002-12-30 CN CN 02160371 patent/CN1230634C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1421628A (en) | 2003-06-04 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xiaoshan District of Hangzhou City, Zhejiang Province, Xiao Jin Road No. 45 Patentee after: Hangzhou Advance Gearbox Group Co., Ltd. Address before: Xiaoshan District of Hangzhou City, Zhejiang Province, Xiao Jin Road No. 45 Patentee before: Hangzhou Qianjin Gear Box Group Corp., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051207 Termination date: 20191230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |