CN103087674A - Application of needle-like wollastonite in process for preparing of friction materials - Google Patents
Application of needle-like wollastonite in process for preparing of friction materials Download PDFInfo
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- CN103087674A CN103087674A CN 201110331137 CN201110331137A CN103087674A CN 103087674 A CN103087674 A CN 103087674A CN 201110331137 CN201110331137 CN 201110331137 CN 201110331137 A CN201110331137 A CN 201110331137A CN 103087674 A CN103087674 A CN 103087674A
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- wollastonite
- needle
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- friction
- friction materials
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Abstract
The invention relates to a novel application of needle-like wollastonite, and particularly relates to an application of the needle-like wollastonite in a process for preparing of friction materials. The needle-like wollastonite powder is a good material for making friction products, has the advantages of low cost, high benefit and high quality reinforcing performance, can enhance durability, frictional resistance, heat resistance, structural stability and chemical stability when being used for pulleys, brake blocks, clutch surfaces and sand paper. Trials of the products show that the product produces no noise, is flexible in braking, has low friction rate and stable performance, and contains no steel fiber. By replacing asbestos with the needle-like wollastonite, a profit is increased by over 20%, and more importantly, the needle-like wollastonite fits the requirement of environmental protection.
Description
Technical field
The present invention relates to new purposes, the especially acicular wollastonite application in preparation friction materials process of acicular wollastonite.
Background technology
Along with the high speed development of automotive industry, more and more higher to the requirement of the security of vehicle and comfortableness.Friction materials has very large impact to security and the comfortableness of vehicle, and the lay special stress on friction materials will have stable frictional coefficient, and comprising the stability of frictional coefficient to pressure, pressure can be up to 50Mpa when braking for disc brake pad.The stability of frictional coefficient to speed, its retro-speed is up to 225 kilometers/hour.The stability of frictional coefficient to temperature, due to braking continuously frequently, the surperficial steady temperature of its brake drum is up to 700 ℃.Due to the increase of vehicle, the noise serious environment pollution of vehicle, the friction stability when braking at a high speed and vibrations also have very important impact to safety.
The asbestos that adopt as friction materials more at present, not only in the process of making brake facing, human body consisted of injury and brings pollution to surrounding environment, and having scrapped asbestos brake lining and also can pollute environment structure, and price is more expensive, increase the production cost of enterprise, reduce the competitive power of enterprise.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, the object of the invention is to the application of open acicular wollastonite in friction materials.
The technical solution adopted for the present invention to solve the technical problems is: the application of acicular wollastonite in friction materials.
Further, acicular wollastonite of the present invention is to be made by the raw material of following weight percent: SiO
248%-53%, CaO44%-46%, all the other are Fe
2O
3
Further, acicular wollastonite Fiber Aspect Ratio of the present invention is 10: 1-20: 1.
Further, the settling volume of acicular wollastonite of the present invention is 〉=50ml/15g.
The invention has the beneficial effects as follows: in the present invention, needle shape wollastonite powder is the good material of doing the friction product, have that cost is low, high efficiency, high quality reinforcement performance, be used in pulley, brake facing, clutch surface and sand paper, can strengthen the stability of wearing quality, rub resistance, thermotolerance and structure and chemistry.Product is through on probation, do not produce noise, braking flexibly, low, the stable performance of friction ratio, do not contain steel fiber, replace asbestos with acicular wollastonite, profit improves more than 20%, the more important thing is to meet environmental requirement.
Embodiment
The present invention is further illustrated in conjunction with the preferred embodiments now.
The application of acicular wollastonite in preparation friction materials process.This acicular wollastonite is to be made by the raw material of following weight percent: SiO
253%, CaO45%, Fe
2O
32%; Described acicular wollastonite Fiber Aspect Ratio is 15: 1, and settling volume is 55ml/15g.
Acicular wollastonite is the good material of doing the friction product, has that the cost poor benefit is high, the high quality reinforcement performance, is applicable to durable pulley, circular brake pad and liner, clutch surface and sand paper.Acicular wollastonite strengthens durable, rub resistance, thermotolerance and structure and chemical stability to these products.Usually adopt asbestos when the preparation friction goods, expensive, but human body is consisted of injury and brings pollution to surrounding environment.Use acicular wollastonite as the substitute of asbestos, by producing in enormous quantities, yield rate can reach more than 99%.Through on probation, the product frictional coefficient that adopts acicular wollastonite to make is high, braking is flexible, wear rate is low and stable performance, and its effect meets or exceeds friction, the Brake Products of asbestos base, is conducive to environmental protection because not containing asbestos.Table 1 is the physicals of acicular wollastonite.
The physicals of table 1 acicular wollastonite
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow person skilled in the art scholar can understand content of the present invention and be implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (1)
1. the application of acicular wollastonite in preparation friction materials process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110331137 CN103087674A (en) | 2011-10-27 | 2011-10-27 | Application of needle-like wollastonite in process for preparing of friction materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110331137 CN103087674A (en) | 2011-10-27 | 2011-10-27 | Application of needle-like wollastonite in process for preparing of friction materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103087674A true CN103087674A (en) | 2013-05-08 |
Family
ID=48200821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110331137 Pending CN103087674A (en) | 2011-10-27 | 2011-10-27 | Application of needle-like wollastonite in process for preparing of friction materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103087674A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191516A (en) * | 2017-05-26 | 2017-09-22 | 山东交通职业学院 | A kind of automobile brake sheet without steel fibre |
| CN111247224A (en) * | 2017-10-26 | 2020-06-05 | 日立化成株式会社 | Friction member, friction material composition for underlayer material, and friction material |
-
2011
- 2011-10-27 CN CN 201110331137 patent/CN103087674A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191516A (en) * | 2017-05-26 | 2017-09-22 | 山东交通职业学院 | A kind of automobile brake sheet without steel fibre |
| CN111247224A (en) * | 2017-10-26 | 2020-06-05 | 日立化成株式会社 | Friction member, friction material composition for underlayer material, and friction material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130508 |