CN103409107B - A kind of Brake pad friction material and preparation technology thereof - Google Patents

A kind of Brake pad friction material and preparation technology thereof Download PDF

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CN103409107B
CN103409107B CN201310320240.5A CN201310320240A CN103409107B CN 103409107 B CN103409107 B CN 103409107B CN 201310320240 A CN201310320240 A CN 201310320240A CN 103409107 B CN103409107 B CN 103409107B
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friction material
brake pad
hot pressing
preparation technology
brake block
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CN103409107A (en
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韩宏超
周正祥
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Xinxiang Dacheng Science And Technology Intermediary Service Co ltd
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ANHUI XINHONG GENERAL EQUIPMENT MANUFACTURING Co Ltd
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Abstract

The invention discloses a kind of Brake pad friction material, it is characterized in that, comprise Ka get Lai resin, Twaron fiber, glass fibre, mineral fibre, graphite, molybdenum dioxide, sepiolite, barium sulfate, Frication powder, tyre talc, increasing rub agent, potassium felspar sand, fire retardant and zircon sand.By the mixing of raw material, the grinding of raw material, hot pressing process, shaping process, complete the preparation of Brake pad friction material, thus obtain a kind of good environmental protection, Brake pad friction material that wearing coefficient is high.

Description

A kind of Brake pad friction material and preparation technology thereof
Technical field
The invention belongs to brake facing industry, relate to a kind of Brake pad friction material and preparation technology thereof.
Background technology
Brake facing is parts the most key in breaking system, carries out locking by brake facing to movement parts, and the quality of right brake facing determines braking effect.Brake facing by being arranged on the steel plate of stopper, by being utilized by friction materials caking agent to be bonded in mode on steel plate, thus during brake, friction materials is utilized to prop up movement parts, make it and produce between movement parts to rub, make the deceleration such as vehicle or equipment of installation stopper, even locking.But the quality of the performance of friction materials and drag effect have close relationship.
Friction materials usually by strongthener, caking agent, stopping composition and frictional property regulator four major part form, caking agent is the important component part in friction materials, affect friction materials heat fading performance, restorability and abrasion resistance properties, what generally use at present has epoxy resin and resol etc.Strongthener mainly plays toughener in friction materials, generally uses at present and adds asbestos, copper fiber etc.Stopping composition, mainly for improving moment of friction and the frictional coefficient of friction materials, increases the wear-resistant coefficient of friction materials, is usually realized through metal-powder by adding copper powder etc.Frictional property regulator carries out noise abatement mainly through graphite etc. and improves the wearing coefficient of friction materials.
But along with the raising that people require the environmental-protecting performance of braking quality and brake facing, containing heavy metal component in traditional brake block friction material, as copper etc., thus the research studying a kind of brake block friction material not containing heavy metal is problem in the urgent need to address.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Brake pad friction material and preparation technology thereof, has good braking effect, the feature that environmental protection coefficient is high.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of Brake pad friction material, its innovative point is, comprise the Ka get Lai resin of part by weight 15% ~ 25%, the Twaron fiber of 4% ~ 6%, glass fibre, the mineral fibre of 4% ~ 8%, graphite, the molybdenum dioxide of 2% ~ 4%, sepiolite, the barium sulfate of 2% ~ 4%, Frication powder, the tyre talc of 15% ~ 25%, the increasing of 1% ~ 6% of 5% ~ 10% of 1% ~ 3% of 3% ~ 5% of 5% ~ 10% rub agent, the potassium felspar sand of 3% ~ 6%, the fire retardant of 3% ~ 5% and 1% ~ 3% zircon sand.
Further, described increasing rubs one or more that agent is mainly in powdered iron ore, magnesium oxide, zirconium white, aluminum oxide.
Further, optimum proportioning is: the Ka get Lai resin of part by weight 20%, the Twaron fiber of 5%, 10% glass fibre, the mineral fibre of 8%, graphite, the molybdenum dioxide of 3%, sepiolite, the barium sulfate of 3%, Frication powder, the tyre talc of 20%, the increasing of 5% of 8% of 2% of 4% rub agent, the potassium felspar sand of 5%, the fire retardant of 5% and 2% zircon sand.
A preparation technology for Brake pad friction material, for obtaining Brake pad friction material, is characterized in that, comprising the following steps:
Step 1: the mixing of raw material, take Ka get Lai resin according to aforementioned proportion, Twaron fiber, glass fibre, mineral fibre, graphite, molybdenum dioxide, sepiolite, barium sulfate, Frication powder, tyre talc, increasing rub agent, potassium felspar sand, fire retardant and zircon sand, then deliver to Homogeneous phase mixing friction materials in stirrer;
Step 2: the grinding of raw material, delivers to pulverizer by mixed friction materials, and its order numerical control is below 40 orders;
Step 3: hot pressing process, sends into the friction materials after grinding in die arrangement, obtains work in-process brake block friction material;
Step 4: shaping process, delivers in heating unit by work in-process brake block friction material, carries out baking processing to work in-process brake block friction material.
Further, the following step is included in described step 1:
Step 1a: take Ka get Lai resin according to aforementioned proportion, rub agent, potassium felspar sand, fire retardant and zircon sand of sepiolite, barium sulfate, Frication powder, tyre talc, increasing stir in advance, churning time is 5min ~ 10min;
Step 1b: then after step 1a stirring terminates, interpolation graphite, molybdenum dioxide stir again, and churning time is 3min ~ 5min;
Step 1c: then after step 1b stirring terminates, interpolation Twaron fiber, glass fibre, mineral fibre stir again, and churning time is 4min ~ 6min;
Further, deironing apparatus is provided with in the grinding of described step 2 raw material.
Further, in described step 3 hot pressing process, hot pressing temperature is 150 DEG C ~ 180 DEG C, and hot pressing time is 5min ~ 8min, and hot pressing pressure is 15 ~ 20Mpa.
Further, in described step 4 shaping process, the temperature of heating unit controls at 200 DEG C ~ 250 DEG C, heat-up time is 2h ~ 2.5h, then be incubated 200 DEG C of 30min, then continue heating, the temperature of heating unit controls at 205 DEG C ~ 220 DEG C, heat-up time is 3h ~ 3.5h, and heating terminates rear acquisition brake block friction material finished product.
The invention has the advantages that: not containing heavy metals such as copper in friction materials composition of raw materials, thus ensure its environmental-protecting performance, additionally by the efficient combination of mentioned component, the crocking resistance parameter of friction materials is improved.
Embodiment
Embodiment one:
Friction materials proportioning: the Ka get Lai resin of part by weight 20%, the Twaron fiber of 5%, 10% glass fibre, the mineral fibre of 8%, graphite, the molybdenum dioxide of 3%, sepiolite, the barium sulfate of 3%, Frication powder, the tyre talc of 20%, the increasing of 5% of 8% of 2% of 4% rub agent, the potassium felspar sand of 5%, the fire retardant of 5% and 2% zircon sand.Wherein increase that the agent that rubs is mainly in powdered iron ore, magnesium oxide, zirconium white, aluminum oxide one or more.
Preparation technology comprises the following steps: step 1: the mixing of raw material, take Ka get Lai resin according to aforementioned proportion, Twaron fiber, glass fibre, mineral fibre, graphite, molybdenum dioxide, sepiolite, barium sulfate, Frication powder, tyre talc, increasing rub agent, potassium felspar sand, fire retardant and zircon sand, then deliver to Homogeneous phase mixing friction materials in stirrer; Step 2: the grinding of raw material, delivers to pulverizer by mixed friction materials, and its order numerical control is below 40 orders; Step 3: hot pressing process, sends into the friction materials after grinding in die arrangement, obtains work in-process brake block friction material; Step 4: shaping process, delivers in heating unit by work in-process brake block friction material, carries out baking processing to work in-process brake block friction material.
Wherein, the following step is included: step 1a: take Ka get Lai resin according to aforementioned proportion, rub agent, potassium felspar sand, fire retardant and zircon sand of sepiolite, barium sulfate, Frication powder, tyre talc, increasing stir in advance, churning time is 5min ~ 10min in step 1; Step 1b: then after step 1a stirring terminates, interpolation graphite, molybdenum dioxide stir again, and churning time is 3min ~ 5min; Step 1c: then after step 1b stirring terminates, interpolation Twaron fiber, glass fibre, mineral fibre stir again, and churning time is 4min ~ 6min.Deironing apparatus is provided with in the grinding of step 2 raw material.In step 3 hot pressing process, hot pressing temperature is 150 DEG C ~ 180 DEG C, and hot pressing time is 5min ~ 8min, and hot pressing pressure is 15 ~ 20Mpa.In step 4 shaping process, the temperature of heating unit controls at 200 DEG C ~ 250 DEG C, heat-up time is 2h ~ 2.5h, then 200 DEG C of 30min are incubated, then heating is continued, the temperature of heating unit controls at 205 DEG C ~ 220 DEG C, and heat-up time is 3h ~ 3.5h, and heating terminates rear acquisition brake block friction material finished product.
Embodiment two:
Friction materials proportioning: the Ka get Lai resin of part by weight 15%, the Twaron fiber of 4%, 6% glass fibre, the mineral fibre of 6%, graphite, the molybdenum dioxide of 4%, sepiolite, the barium sulfate of 4%, Frication powder, the tyre talc of 23%, the increasing of 6% of 10% of 3% of 5% rub agent, the potassium felspar sand of 6%, the fire retardant of 5% and 3% zircon sand.Wherein increase that the agent that rubs is mainly in powdered iron ore, magnesium oxide, zirconium white, aluminum oxide one or more.
Preparation technology comprises the following steps: step 1: the mixing of raw material, take Ka get Lai resin according to aforementioned proportion, Twaron fiber, glass fibre, mineral fibre, graphite, molybdenum dioxide, sepiolite, barium sulfate, Frication powder, tyre talc, increasing rub agent, potassium felspar sand, fire retardant and zircon sand, then deliver to Homogeneous phase mixing friction materials in stirrer; Step 2: the grinding of raw material, delivers to pulverizer by mixed friction materials, and its order numerical control is below 40 orders; Step 3: hot pressing process, sends into the friction materials after grinding in die arrangement, obtains work in-process brake block friction material; Step 4: shaping process, delivers in heating unit by work in-process brake block friction material, carries out baking processing to work in-process brake block friction material.
Wherein, the following step is included: step 1a: take Ka get Lai resin according to aforementioned proportion, rub agent, potassium felspar sand, fire retardant and zircon sand of sepiolite, barium sulfate, Frication powder, tyre talc, increasing stir in advance, churning time is 5min ~ 10min in step 1; Step 1b: then after step 1a stirring terminates, interpolation graphite, molybdenum dioxide stir again, and churning time is 3min ~ 5min; Step 1c: then after step 1b stirring terminates, interpolation Twaron fiber, glass fibre, mineral fibre stir again, and churning time is 4min ~ 6min.Deironing apparatus is provided with in the grinding of step 2 raw material.In step 3 hot pressing process, hot pressing temperature is 150 DEG C ~ 180 DEG C, and hot pressing time is 5min ~ 8min, and hot pressing pressure is 15 ~ 20Mpa.In step 4 shaping process, the temperature of heating unit controls at 200 DEG C ~ 250 DEG C, heat-up time is 2h ~ 2.5h, then 200 DEG C of 30min are incubated, then heating is continued, the temperature of heating unit controls at 205 DEG C ~ 220 DEG C, and heat-up time is 3h ~ 3.5h, and heating terminates rear acquisition brake block friction material finished product.
Embodiment three:
Friction materials proportioning: the Ka get Lai resin of part by weight 25%, the Twaron fiber of 4%, 5% glass fibre, the mineral fibre of 4%, graphite, the molybdenum dioxide of 2%, sepiolite, the barium sulfate of 2%, Frication powder, the tyre talc of 25%, the increasing of 5% of 10% of 2% of 3% rub agent, the potassium felspar sand of 5%, the fire retardant of 5% and 3% zircon sand.Wherein increase that the agent that rubs is mainly in powdered iron ore, magnesium oxide, zirconium white, aluminum oxide one or more.
Preparation technology comprises the following steps: step 1: the mixing of raw material, take Ka get Lai resin according to aforementioned proportion, Twaron fiber, glass fibre, mineral fibre, graphite, molybdenum dioxide, sepiolite, barium sulfate, Frication powder, tyre talc, increasing rub agent, potassium felspar sand, fire retardant and zircon sand, then deliver to Homogeneous phase mixing friction materials in stirrer; Step 2: the grinding of raw material, delivers to pulverizer by mixed friction materials, and its order numerical control is below 40 orders; Step 3: hot pressing process, sends into the friction materials after grinding in die arrangement, obtains work in-process brake block friction material; Step 4: shaping process, delivers in heating unit by work in-process brake block friction material, carries out baking processing to work in-process brake block friction material.
Wherein, the following step is included: step 1a: take Ka get Lai resin according to aforementioned proportion, rub agent, potassium felspar sand, fire retardant and zircon sand of sepiolite, barium sulfate, Frication powder, tyre talc, increasing stir in advance, churning time is 5min ~ 10min in step 1; Step 1b: then after step 1a stirring terminates, interpolation graphite, molybdenum dioxide stir again, and churning time is 3min ~ 5min; Step 1c: then after step 1b stirring terminates, interpolation Twaron fiber, glass fibre, mineral fibre stir again, and churning time is 4min ~ 6min.Deironing apparatus is provided with in the grinding of step 2 raw material.In step 3 hot pressing process, hot pressing temperature is 150 DEG C ~ 180 DEG C, and hot pressing time is 5min ~ 8min, and hot pressing pressure is 15 ~ 20Mpa.In step 4 shaping process, the temperature of heating unit controls at 200 DEG C ~ 250 DEG C, heat-up time is 2h ~ 2.5h, then 200 DEG C of 30min are incubated, then heating is continued, the temperature of heating unit controls at 205 DEG C ~ 220 DEG C, and heat-up time is 3h ~ 3.5h, and heating terminates rear acquisition brake block friction material finished product.
Above an embodiment of the invention has been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalization changes done according to the invention application range with improve, within the patent covering scope that still all should belong to the invention.

Claims (6)

1. a Brake pad friction material, it is characterized in that, comprise the Ka get Lai resin of part by weight 15% ~ 25%, the Twaron fiber of 4% ~ 6%, the glass fibre of 5% ~ 10%, the mineral fibre of 4% ~ 8%, the graphite of 3% ~ 5%, the molybdenum dioxide of 2% ~ 4%, the sepiolite of 1% ~ 3%, the barium sulfate of 2% ~ 4%, the Frication powder of 5% ~ 10%, the tyre talc of 15% ~ 25%, the increasing of 1% ~ 6% rubs agent, the potassium felspar sand of 3% ~ 6%, the fire retardant of 3% ~ 5% and the zircon sand of 1% ~ 3%, the described increasing agent that rubs is mainly powdered iron ore, magnesium oxide, zirconium white, one or more in aluminum oxide,
The preparation technology of described Brake pad friction material comprises the following steps:
Step 1: the mixing of raw material includes the following step:
Step 1a: take Ka get Lai resin according to aforementioned proportion, rub agent, potassium felspar sand, fire retardant and zircon sand of sepiolite, barium sulfate, Frication powder, tyre talc, increasing stir in advance, churning time is 5min ~ 10min;
Step 1b: then after step 1a stirring terminates, interpolation graphite, molybdenum dioxide stir again, and churning time is 3min ~ 5min;
Step 1c: then after step 1b stirring terminates, interpolation Twaron fiber, glass fibre, mineral fibre stir again, and churning time is 4min ~ 6min;
Step 2: the grinding of raw material, delivers to pulverizer by mixed friction materials, and its order numerical control is below 40 orders;
Step 3: hot pressing process, sends into the friction materials after grinding in die arrangement, obtains work in-process brake block friction material;
Step 4: shaping process, delivers in heating unit by work in-process brake block friction material, carries out baking processing to work in-process brake block friction material.
2. a kind of Brake pad friction material according to claim 1, it is characterized in that, optimum proportioning is: the Ka get Lai resin of part by weight 20%, the Twaron fiber of 5%, 10% glass fibre, the mineral fibre of 8%, graphite, the molybdenum dioxide of 3%, sepiolite, the barium sulfate of 3%, Frication powder, the tyre talc of 20%, the increasing of 5% of 8% of 2% of 4% rub agent, the potassium felspar sand of 5%, the fire retardant of 5% and 2% zircon sand.
3. the preparation technology of a kind of Brake pad friction material according to claim 1, is characterized in that, the preparation technology of described Brake pad friction material comprises the following steps:
Step 1: the mixing of raw material, includes the following step:
Step 1a: take Ka get Lai resin according to aforementioned proportion, rub agent, potassium felspar sand, fire retardant and zircon sand of sepiolite, barium sulfate, Frication powder, tyre talc, increasing stir in advance, churning time is 5min ~ 10min;
Step 1b: then after step 1a stirring terminates, interpolation graphite, molybdenum dioxide stir again, and churning time is 3min ~ 5min;
Step 1c: then after step 1b stirring terminates, interpolation Twaron fiber, glass fibre, mineral fibre stir again, and churning time is 4min ~ 6min;
Step 2: the grinding of raw material, delivers to pulverizer by mixed friction materials, and its order numerical control is below 40 orders;
Step 3: hot pressing process, sends into the friction materials after grinding in die arrangement, obtains work in-process brake block friction material;
Step 4: shaping process, delivers in heating unit by work in-process brake block friction material, carries out baking processing to work in-process brake block friction material.
4. the preparation technology of a kind of Brake pad friction material according to claim 3, is characterized in that, is provided with deironing apparatus in the grinding of described step 2 raw material.
5. the preparation technology of a kind of Brake pad friction material according to claim 3, is characterized in that, in described step 3 hot pressing process, hot pressing temperature is 150 DEG C ~ 180 DEG C, and hot pressing time is 5min ~ 8min, and hot pressing pressure is 15 ~ 20Mpa.
6. the preparation technology of a kind of Brake pad friction material according to claim 3, it is characterized in that, in described step 4 shaping process, the temperature of heating unit controls at 200 DEG C ~ 250 DEG C, and heat-up time is 2h ~ 2.5h, then 200 DEG C are incubated, 30min, then continue heating, the temperature of heating unit controls at 205 DEG C ~ 220 DEG C, heat-up time is 3h ~ 3.5h, and heating terminates rear acquisition brake block friction material finished product.
CN201310320240.5A 2013-07-26 2013-07-26 A kind of Brake pad friction material and preparation technology thereof Expired - Fee Related CN103409107B (en)

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CN102993621A (en) * 2011-09-13 2013-03-27 黑龙江鑫达企业集团有限公司 Glass fiber reinforced flame-retardant ABS composite material having high impact resistance and high heat resistance, and its preparation technology

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US9039825B2 (en) * 2009-06-01 2015-05-26 Hitachi Chemical Co., Ltd. Friction material composition, friction material using the same, and friction member

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000144104A (en) * 1998-11-05 2000-05-26 Aisin Chem Co Ltd Friction material
CN1487010A (en) * 2003-08-04 2004-04-07 山东烟台石棉制品总厂 Non-asbestos stool plate and its making process
CN1814657A (en) * 2005-02-02 2006-08-09 中南大学 Environment-protection type high-performance automobile braking piece and making method
CN101709753A (en) * 2009-11-23 2010-05-19 北京中石大节能科技发展有限责任公司 Environment-friendly bamboo charcoal composite ceramic brake
CN102993621A (en) * 2011-09-13 2013-03-27 黑龙江鑫达企业集团有限公司 Glass fiber reinforced flame-retardant ABS composite material having high impact resistance and high heat resistance, and its preparation technology
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