CN101875791A - Reinforced composite friction material - Google Patents
Reinforced composite friction material Download PDFInfo
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- CN101875791A CN101875791A CN2009100149405A CN200910014940A CN101875791A CN 101875791 A CN101875791 A CN 101875791A CN 2009100149405 A CN2009100149405 A CN 2009100149405A CN 200910014940 A CN200910014940 A CN 200910014940A CN 101875791 A CN101875791 A CN 101875791A
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- molybdenumdisulphide
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Abstract
The invention discloses a reinforced composite friction material, which is prepared by the steps of material preparation, material mixing, pre-forming, hot pressing, heat treatment, grinding, post-treatment and the like. The reinforced composite friction material is characterized by comprising the following raw material components in percentage by weight: 5 to 20 percent of bonding agent, 20 to 35 percent of reinforcing material, 1 to 7 percent of abrasive, 15 to 25 percent of lubricating agent and the balance of filler. The reinforced composite friction material has the advantages of stable friction coefficient, low wear rate, high thermal degradation resistance, no noise, environmental protection, no damages to coupling material and long service life. Thus, the reinforced composite friction material can be widely used in various kinds of mechanical braking and transmission of power with a promising market prospect.
Description
Technical field
The present invention relates to a kind of friction materials, specifically a kind of modification pure aluminium silicate and calcium carbonate crystal whisker miscellaneous of utilizing strengthens composite friction material.
Background technology
Past, the development of friction materials, always with the asbestos base product in occupation of consequence, nineteen seventies is after some developed countries propose the hazardness problem of asbestos to human body.So the friction materials of asbestos base product is along with the development of society is progressively eliminated.The metal fibre of semi-metallic based friction material has substituted fibrous magnesium silicate and has been popularized rapidly, but the existence of a large amount of metal ingredients has caused the product hardness height, the thermal conductivity height in this class material prescription structure, the existence of defectives such as easy-to-rust, these defectives cause potential safety hazard easily.Moreover, semimetal friction material can produce certain pollution in process of production, has noise to produce in the use, and the easy damaged mating material; Also have a kind of glass fibre that does not add metal, organic fibre, metal inorganic salt, metallic compound etc. in addition, such product shortcoming is, the wear rate height, and especially its wearing and tearing are more serious under the condition of high temperature, and work-ing life is short, and the cost height is difficult to promote.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provides that a kind of stable friction factor, wear rate are low, heat resistanceheat resistant declines performance is good, noiselessness, environmental protection, do not damage the enhancing composite friction material of mating material, long service life.
The technical solution adopted for the present invention to solve the technical problems is: a kind of enhancing composite friction material, be prepared by steps such as batching, batch mixing, premolding, hot pressing, thermal treatment, grinding, postprocessing working procedures, it is characterized in that its starting material component and weight percent thereof are: tackiness agent 5-20%, strongthener 20-35%, abrasive 1-7%, lubricant 15-25%, the filler surplus
The component of above-mentioned tackiness agent comprises modified resin, molybdenumdisulphide, modified rubber; By weight, each component concentration is: modified resin 6-10, and molybdenumdisulphide 2-6, modified rubber 3-6,
The component of above-mentioned strongthener comprises the modification pure aluminium silicate, xylon, and steel fiber, wollastonite fibre, calcium carbonate crystal whisker, by weight, each component concentration is: modification pure aluminium silicate 5-10, xylon 3-8, steel fiber 0-10, wollastonite fibre 0-6, calcium carbonate crystal whisker 4-18,
Above-mentioned abrasive comprises corundum, silicon carbide, and aluminium sesquioxide, by weight, each component concentration is: corundum 0.1-1, silicon carbide 0.1-0.3, aluminium sesquioxide 1-5,
Above-mentioned lubricant comprises graphite, molybdenumdisulphide, and by weight, each component concentration is: graphite 3-9, molybdenumdisulphide 2-6,
Above-mentioned filler comprises magnesium oxide, refinery coke, and process white, the friction powder, corundum, by weight, each component concentration is: magnesium oxide 4-10, refinery coke 4-8, process white 6-16, friction powder 3-8, corundum 0.1-1.
The present invention has introduced the modification pure aluminium silicate, effectively suppresses the character of heat-fading and the swelling property of material, and hardness is low, and illusory property is big, can well absorb the noise that friction materials sends because of braking; Stronger adsorptivity is arranged, and adsorbable various powder materials strengthen the friction materials steadiness.The calcium carbonate crystal whisker good combination property, the frictional coefficient height, wear resisting property and resistance toheat height can dampings in the use, anti-skidding, noise reduction, suction ripple, and its dust can decompose under the effect of the various enzymes of human body and allot externally, have environment-friendly advantage.Particularly importantly, modification pure aluminium silicate and calcium carbonate crystal whisker are worked in coordination with enhancement, can strengthen to shift film strength and thermotolerance on the frictional interface, reduce abrasion, guarantee the thermostability of friction materials use; Transfer film has lubricity concurrently, eliminates the hard point that the surface forms in friction process of friction materials in the past, effectively reduces or abates the noise.Stable friction factor of the present invention, wear rate are low, heat resistanceheat resistant declines, and performance is good, noiselessness, environmental protection, do not damage mating material, long service life, can be widely used in various mechanical brakings and transmission of power, and market outlook are wide.
Embodiment
The invention will be further described below in conjunction with embodiment.
A kind of enhancing composite friction material comprises following component (seeing Table 1), and its raw-material weight per-cent is: tackiness agent 5-20%, and strongthener 20-35%, abrasive 1-7%, lubricant 15-25%, the filler surplus,
The component of above-mentioned tackiness agent comprises modified resin, molybdenumdisulphide, modified rubber; By weight, each component concentration is: modified resin 6-10, and molybdenumdisulphide 2-6, modified rubber 3-6,
The component of above-mentioned strongthener comprises the modification pure aluminium silicate, xylon, and steel fiber, wollastonite fibre, calcium carbonate crystal whisker, by weight, each component concentration is: modification pure aluminium silicate 5-10, xylon 3-8, steel fiber 0-10, wollastonite fibre 0-6, calcium carbonate crystal whisker 4-18,
Above-mentioned abrasive comprises corundum, silicon carbide, and aluminium sesquioxide, by weight, each component concentration is: corundum 0.1-1, silicon carbide 0.1-0.3, aluminium sesquioxide 1-5,
Above-mentioned lubricant comprises graphite, molybdenumdisulphide, and by weight, each component concentration is: graphite 3-9, molybdenumdisulphide 2-6,
Above-mentioned filler comprises magnesium oxide, refinery coke, and process white, the friction powder, corundum, by weight, each component concentration is: magnesium oxide 4-10, refinery coke 4-8, process white 6-16, friction powder 3-8, corundum 0.1-1.
Its preparation process is as follows:
1, batching: prepare burden in material requested and ratio with electronic scales, require to be accurate to 0.01g,
2, batch mixing: institute batching put into turn over the reamer type mixer and mixed 15-20 minute,
3, premolding: cold pressing with 170 tons of pressing machinees, require weighing to be accurate to 1g,
4, hot pressing: under 150 ℃-160 ℃ temperature, every millimeter goods 40 second time of insulation, every cm2 pressure is at 400 kilograms with 400 tons of pressing machinees,
5, thermal treatment: be warming up to 180 ℃-190 ℃ gradually from 100 ℃, be incubated 9 hours,
6, grinding: utilize special-purpose grinding machine, guarantee the planeness of goods and parallelism at 0-0.1,
7, postprocessing working procedures: comprise and spray paint, beat label and test package.
Table 1:
Following table is the constant speed test report that the applicant obtains through experiment:
| Temperature (℃) | Wear rate | Frictional coefficient |
| ??100 | ??0.14 | ??0.36 |
| ??150 | ??0.16 | ??0.35 |
| ??200 | ??0.17 | ??0.35 |
| ??250 | ??0.17 | ??0.35 |
| ??300 | ??0.20 | ??0.36 |
| ??350 | ??0.18 | ??0.35 |
Stable friction factor of the present invention, wear rate are low, heat resistanceheat resistant declines, and performance is good, noiselessness, environmental protection, do not damage mating material, long service life, can be widely used in various mechanical brakings and transmission of power, and market outlook are wide.
Claims (1)
1. one kind strengthens composite friction material, be prepared by steps such as batching, batch mixing, premolding, hot pressing, thermal treatment, grinding, postprocessing working procedures, it is characterized in that its starting material component and weight percent thereof are: tackiness agent 5-20%, strongthener 20-35%, abrasive 1-7%, lubricant 15-25%, the filler surplus
The component of above-mentioned tackiness agent comprises modified resin, molybdenumdisulphide, modified rubber; By weight, each component concentration is: modified resin 6-10, and molybdenumdisulphide 2-6, modified rubber 3-6,
The component of above-mentioned strongthener comprises the modification pure aluminium silicate, xylon, and steel fiber, wollastonite fibre, calcium carbonate crystal whisker, by weight, each component concentration is: modification pure aluminium silicate 5-10, xylon 3-8, steel fiber 0-10, wollastonite fibre 0-6, calcium carbonate crystal whisker 4-18,
Above-mentioned abrasive comprises corundum, silicon carbide, and aluminium sesquioxide, by weight, each component concentration is: corundum 0.1-1, silicon carbide 0.1-0.3, aluminium sesquioxide 1-5,
Above-mentioned lubricant comprises graphite, molybdenumdisulphide, and by weight, each component concentration is: graphite 3-9, molybdenumdisulphide 2-6,
Above-mentioned filler comprises magnesium oxide, refinery coke, and process white, the friction powder, corundum, by weight, each component concentration is: magnesium oxide 4-10, refinery coke 4-8, process white 6-16, friction powder 3-8, corundum 0.1-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100149405A CN101875791A (en) | 2009-04-30 | 2009-04-30 | Reinforced composite friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100149405A CN101875791A (en) | 2009-04-30 | 2009-04-30 | Reinforced composite friction material |
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| CN101875791A true CN101875791A (en) | 2010-11-03 |
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| CN2009100149405A Pending CN101875791A (en) | 2009-04-30 | 2009-04-30 | Reinforced composite friction material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815895A (en) * | 2012-07-20 | 2012-12-12 | 高江之 | Asbestos-free metal-free composite modified ceramic friction material |
| CN102898112A (en) * | 2011-07-29 | 2013-01-30 | 上海圣济国际贸易有限公司 | Novel environmentally friendly material of composite calcium carbonate |
| CN107129623A (en) * | 2016-02-29 | 2017-09-05 | 住友化学株式会社 | Composition for thermoplastic elastomer |
-
2009
- 2009-04-30 CN CN2009100149405A patent/CN101875791A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898112A (en) * | 2011-07-29 | 2013-01-30 | 上海圣济国际贸易有限公司 | Novel environmentally friendly material of composite calcium carbonate |
| CN102815895A (en) * | 2012-07-20 | 2012-12-12 | 高江之 | Asbestos-free metal-free composite modified ceramic friction material |
| CN102815895B (en) * | 2012-07-20 | 2014-09-03 | 高江之 | Asbestos-free metal-free composite modified ceramic friction material |
| CN107129623A (en) * | 2016-02-29 | 2017-09-05 | 住友化学株式会社 | Composition for thermoplastic elastomer |
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Application publication date: 20101103 |