CN103291789A - Method for preparing automobile friction plate - Google Patents
Method for preparing automobile friction plate Download PDFInfo
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- CN103291789A CN103291789A CN2013102199621A CN201310219962A CN103291789A CN 103291789 A CN103291789 A CN 103291789A CN 2013102199621 A CN2013102199621 A CN 2013102199621A CN 201310219962 A CN201310219962 A CN 201310219962A CN 103291789 A CN103291789 A CN 103291789A
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Abstract
The invention discloses a method for preparing an automobile friction plate. The method includes the steps of material mixing, cold pressing, hot pressing, heat treatment and surface grinding. According to the method, through a unique material mixing sequence and heat treatment, the prepared friction plate is high in rigidity and tenacity, good in braking performance and wear resistance, stable in braking, little in dust, moderate in hardness, little in heat fade, good in high temperature restorability, and capable of reducing noise pollution and improving performance of an automobile braking system.
Description
Technical field
The invention belongs to the special material technical field, particularly a kind of preparation method of automobile friction.
Background technique
Automobile brake friction plate exists combination property not high at present, and the problem that various performances can not be taken into account is as some strength and toughness deficiency, the elevated temperature heat decline is big, the coefficient instability is examined in rubbing in the brake temperature-rise period, skids simultaneously, and brake locking and the ash that falls are serious, the deficiency of formula system in addition, make the lubricated damping layer of frictional interface, make the product shakiness of in use braking, the wound dish, reduce working life, produce defectives such as the noise existence that makes the people insufferable.
Summary of the invention
At the deficiencies in the prior art, the preparation method who the purpose of this invention is to provide a kind of automobile friction, use friction plate rigidity and the good toughness of preparation method's preparation of the present invention, has good braking, wear resistance, braking is steady, dust is few, and hardness is moderate, and heat fade is little, the high temperature restorability is good.
The technical solution used in the present invention is:
A kind of preparation method of automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate, batch mixing in high speed mixer by formula ratio; Described batch mixing is in proper order: with steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 10 ± 2min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 10 ± 2min in the batch mixer; powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 25 ± 5min in the batch mixer
B, cold pressing: pressure is 250-300Kg/cm2, dwell time 40-50s; The blank size is so that product thickness+(4-5) mm is advisable;
C, hot pressing: pressure 500-550Kg/cm2,155 ± 5 ℃ of hot pressing temperatures, dwell time 360 ± 10s; Exit in the pressure maintaining period, be specially: pressurize 10 ± 1s, venting 5 ± 2s; Pressurize 15 ± 1s, venting 5 ± 2s; Pressurize 15 ± 1s, venting 5 ± 2s; Pressurize 20 ± 2s, venting 5 ± 2s; Last pressurize 300 ± 5s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1.5 ± 0.25h, constant temperature 2 ± 0.5h; 120 ~ 150 ℃ of 2.5 ± 0.25h that heat up, constant temperature 2.5 ± 0.5h; 150 ~ 180 ℃ of 1.5 ± 0.25h that heat up, constant temperature 2 ± 0.5h; 180 ~ 200 ℃ of 2 ± 0.25h that heat up, constant temperature 3.5 ± 0.5h; Naturally cool to room temperature then;
E, flat surface grinding.
Each raw material components weight percentage of described friction plate is respectively: binder 8%～15%, strengthening agent 24%～33%, increase grinding agent 7.2-9.8%, antifriction lubricant 16.5%～20%, elasticity plasticizer 4.5%～6.5%, stuffing 24.8%～30.6%;
Described binder is the composition of nanometer phenolic resin, nitrile rubber and styrene butadiene rubber, and the mass percent of described nanometer phenolic resin, nitrile rubber and styrene butadiene rubber is respectively 6-10%, 1.5-3%, 0.5-2%;
Described strengthening agent is the composition of Steel Fibre, aramid fibre, carbon fiber, mineral fibre, red copper fiber, copper fiber, polypropylene fiber and paper fiber, and described Steel Fibre, aramid fibre, carbon fiber, mineral fibre, red copper fiber, copper fiber, polypropylene fiber and paper quality of fiber percentage are respectively 6-7%, 0.5-1.5%, 2.5-3.5%, 6-8%, 4-6%, 2-4%, 1-2%, 2-3%;
The described grinding agent that increases increases the composition of grinding agent, reducing iron powder, iron oxide yellow and iron oxide red for the NJF secondary, and the mass percent that described NJF secondary increases grinding agent, reducing iron powder, iron oxide yellow and iron oxide red is respectively 1.8-2.2%, 3.5-4.5%, 1.5-2.5%, 0.4-0.6%;
Described antifriction lubricant is the composition of flash of light aluminium powder, zinc powder, mica and calcined petroleum coke, and the mass percent of described flash of light aluminium powder, zinc powder, mica and calcined petroleum coke is respectively 2-3%, 1.5-2.5%, 3-4%, 10-10.5%;
Described elasticity plasticizer is the composition of friction powder and red vermiculite, and the mass percent of described friction powder and red vermiculite is respectively 3-4%, 1.5-2.5%; Described friction powder is cashew nut oil friction powder;
Described stuffing is the composition of light magnesium oxide, blanc fixe and precipitated calcium carbonate, and the mass percent of described light magnesium oxide, blanc fixe and precipitated calcium carbonate is 3.8-4.6%, 15-17%, 6-7% respectively.
Preparation method of the present invention is by unique batch mixing order and heat treatment, friction plate rigidity and the good toughness of preparation, has good braking, wear resistance, braking is steady, dust is few, and hardness is moderate, and heat fade is little, the high temperature restorability is good, reduce noise pollution, improved the performance of brake system of car.
Embodiment
Embodiment 1
A kind of preparation method of automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing is in proper order: with steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 10min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 10min in the batch mixer; powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 25min in the batch mixer
B, cold pressing: pressure is 280Kg/cm
2, dwell time 45s;
C, hot pressing: pressure 530Kg/cm
2, 155 ℃ of hot pressing temperatures are exitted in the pressure maintaining period, are specially: pressurize 10s, venting 5s; Pressurize 15s, venting 5s; Pressurize 15s, venting 5s; Pressurize 20s, venting 5s; Last pressurize 300s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1.5h, constant temperature 2h; 120 ~ 150 ℃ of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 ℃ of intensification 1.5h, constant temperature 2h; 180 ~ 200 ℃ of intensification 2h, constant temperature 3.5h; Naturally cool to room temperature then;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, single face shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, finished product warehouse-in, finished product batch sampling observation, finished product outbound.
Each raw material components of the friction plate that uses among the preparation method and content see Table 1.
Embodiment 2
A kind of preparation method of automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing is in proper order: with steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 8min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 12min in the batch mixer; powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 30min in the batch mixer
B, cold pressing: pressure is 300Kg/cm2, dwell time 40s;
C, hot pressing: pressure 550Kg/cm2,150 ℃ of hot pressing temperatures are exitted in the pressure maintaining period, are specially: pressurize 9s, venting 7s; Pressurize 14s, venting 3s; Pressurize 16s, venting 5s; Pressurize 22s, venting 3s; Last pressurize 300s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1.75h, constant temperature 1.5h; 120 ~ 150 ℃ of intensification 2.75h, constant temperature 2.0h; 150 ~ 180 ℃ of intensification 1.75h, constant temperature 1.5h; 180 ~ 200 ℃ of intensification 2.25h, constant temperature 3h; Naturally cool to room temperature then;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, single face shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, finished product warehouse-in, finished product batch sampling observation, finished product outbound.
Each raw material components of the friction plate that uses among the preparation method and content see Table 1.
Embodiment 3
A kind of preparation method of automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing is in proper order: with steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 12min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 8min in the batch mixer; powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 20min in the batch mixer
B, cold pressing: pressure is 250Kg/cm
2, dwell time 50s;
C, hot pressing: pressure 500Kg/cm
2, 160 ℃ of hot pressing temperatures are exitted in the pressure maintaining period, are specially: pressurize 11s, venting 3s; Pressurize 16s, venting 7s; Pressurize 14s, venting 7s; Pressurize 18s, venting 7s; Last pressurize 295s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1. 25h, constant temperature 2.5h; 120 ~ 150 ℃ of 2. 25h that heat up, constant temperature 3h; 150 ~ 180 ℃ of 1. 25h that heat up, constant temperature 2.5h; 180 ~ 200 ℃ of intensification 1.85h, constant temperature 4h; Naturally cool to room temperature then;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, single face shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, finished product warehouse-in, finished product batch sampling observation, finished product outbound.
Each raw material components of the friction plate that uses among the preparation method and content see Table 1.
Embodiment 4
A kind of preparation method of automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing is in proper order: with steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 10min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 10min in the batch mixer; powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 25min in the batch mixer
B, cold pressing: pressure is 260Kg/cm
2, dwell time 40s;
C, hot pressing: pressure 520Kg/cm
2, 160 ℃ of hot pressing temperatures are exitted in the pressure maintaining period, are specially: pressurize 10s, venting 5s; Pressurize 15s, venting 5s; Pressurize 15s, venting 5s; Pressurize 20s, venting 5s; Last pressurize 300s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1.5h, constant temperature 2h; 120 ~ 150 ℃ of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 ℃ of intensification 1.5h, constant temperature 2h; 180 ~ 200 ℃ of intensification 2h, constant temperature 3.5h; Naturally cool to room temperature then;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, single face shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, finished product warehouse-in, finished product batch sampling observation, finished product outbound.
Each raw material components of the friction plate that uses among the preparation method and content see Table 1.
Embodiment 5
A kind of preparation method of automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing is in proper order: with steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 10min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 10min in the batch mixer; powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 30min in the batch mixer
B, cold pressing: pressure is 260Kg/cm
2, dwell time 45s;
C, hot pressing: pressure 540Kg/cm
2, 155 ℃ of hot pressing temperatures are exitted in the pressure maintaining period, are specially: pressurize 10s, venting 5s; Pressurize 15s, venting 5s; Pressurize 15s, venting 5s; Pressurize 20s, venting 5s; Last pressurize 300s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1.5h, constant temperature 2h; 120 ~ 150 ℃ of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 ℃ of intensification 1.5h, constant temperature 2h; 180 ~ 200 ℃ of intensification 2h, constant temperature 3.5h; Naturally cool to room temperature then;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, single face shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, finished product warehouse-in, finished product batch sampling observation, finished product outbound.
Each raw material components of the friction plate that uses among the preparation method and content see Table 1.
Embodiment 6
A kind of preparation method of automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing is in proper order: with steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 10min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 10min in the batch mixer; powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 25min in the batch mixer
B, cold pressing: pressure is 280Kg/cm
2, dwell time 45s;
C, hot pressing: pressure 520Kg/cm2,160 ℃ of hot pressing temperatures are exitted in the pressure maintaining period, are specially: pressurize 10s, venting 5s; Pressurize 15s, venting 5s; Pressurize 15s, venting 5s; Pressurize 20s, venting 5s; Last pressurize 300s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1.5h, constant temperature 2h; 120 ~ 150 ℃ of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 ℃ of intensification 1.5h, constant temperature 2h; 180 ~ 200 ℃ of intensification 2h, constant temperature 3.5h; Naturally cool to room temperature then;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, single face shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, finished product warehouse-in, finished product batch sampling observation, finished product outbound.
Each raw material components of the friction plate that uses among the preparation method and content see Table 1.
Component and the content of table 1 embodiment 1 ~ 6 friction material
The performance test data of the automobile friction of table 2 embodiment 1 ~ 6 preparation
| Test event | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Friction factor | N/m 2 | 0.39-0.42 | 0.38-0.42 | 0.36-0.39 | 0.36-0.41 | 0.38-0.41 | 0.37-0.40 |
| Thermal expansion | μm | 0.1 | 0.12 | 0.14 | 0.22 | 0.24 | 0.26 |
| Shear strength | KN/cm 2 | 0.49 | 0.44 | 0.46 | 0.42 | 0.44 | 0.47 |
| Hardness | HRC | 50-55 | 48-52 | 48-51 | 47-49 | 48-53 | 49-52 |
| Abrasion | cm 3/N.MX10 -3 | 0.12 | 0.24 | 0.22 | 0.18 | 0.22 | 0.26 |
Claims (4)
1. the preparation method of an automobile friction, step comprises:
A, batch mixing: take by weighing each raw material components of friction plate, batch mixing in high speed mixer by formula ratio;
B, cold pressing: pressure is 250-300Kg/cm2, dwell time 40-50s;
C, hot pressing: pressure 500-550Kg/cm2,155 ± 5 ℃ of hot pressing temperatures, dwell time 360 ± 10s;
D, heat treatment: room temperature ~ 120 ℃ intensification 1.5 ± 0.25h, constant temperature 2 ± 0.5h; 120 ~ 150 ℃ of 2.5 ± 0.25h that heat up, constant temperature 2.5 ± 0.5h; 150 ~ 180 ℃ of 1.5 ± 0.25h that heat up, constant temperature 2 ± 0.5h; 180 ~ 200 ℃ of 2 ± 0.25h that heat up, constant temperature 3.5 ± 0.5h; Naturally cool to room temperature then;
E, flat surface grinding.
2. preparation method as claimed in claim 1, it is characterized in that: the batch mixing in the described steps A is with steel wool in proper order, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, the NJF secondary increases grinding agent, reducing iron powder, the flash of light aluminium powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe drops into batch mixing 10 ± 2min in the batch mixer, then with resin, nitrile rubber; styrene butadiene rubber; aramid fibre; polypropylene fiber drops into batch mixing 10 ± 2min in the batch mixer, and powder at last will rub; red copper fiber; copper fiber; paper fiber; calcined petroleum coke drops into batch mixing 25 ± 5min in the batch mixer.
3. preparation method as claimed in claim 1 is characterized in that: exit in the pressure maintaining period among the described step C, be specially: pressurize 10 ± 1s, venting 5 ± 2s; Pressurize 15 ± 1s, venting 5 ± 2s; Pressurize 15 ± 1s, venting 5 ± 2s; Pressurize 20 ± 2s, venting 5 ± 2s; Last pressurize 300 ± 5s.
4. as each described preparation method of claim 1 ~ 3, it is characterized in that: each raw material components weight percentage of described friction plate is: binder 8%～15%, strengthening agent 24%～33%, increase grinding agent 7.2-9.8%, antifriction lubricant 16.5%～20%, elasticity plasticizer 4.5%～6.5%, stuffing 24.8%～30.6%;
Described binder is the composition of nanometer phenolic resin, nitrile rubber and styrene butadiene rubber, and the mass percent of described nanometer phenolic resin, nitrile rubber and styrene butadiene rubber is respectively 6-10%, 1.5-3%, 0.5-2%.
Described strengthening agent is the composition of Steel Fibre, aramid fibre, carbon fiber, mineral fibre, red copper fiber, copper fiber, polypropylene fiber and paper fiber, and described Steel Fibre, aramid fibre, carbon fiber, mineral fibre, red copper fiber, copper fiber, polypropylene fiber and paper quality of fiber percentage are respectively 6-7%, 0.5-1.5%, 2.5-3.5%, 6-8%, 4-6%, 2-4%, 1-2%, 2-3%.
The described grinding agent that increases increases the composition of grinding agent, reducing iron powder, iron oxide yellow and iron oxide red for the NJF secondary, and the mass percent that described NJF secondary increases grinding agent, reducing iron powder, iron oxide yellow and iron oxide red is respectively 1.8-2.2%, 3.5-4.5%, 1.5-2.5%, 0.4-0.6%.
Described antifriction lubricant is the composition of flash of light aluminium powder, zinc powder, mica and calcined petroleum coke, and the mass percent of described flash of light aluminium powder, zinc powder, mica and calcined petroleum coke is respectively 2-3%, 1.5-2.5%, 3-4%, 10-10.5%.
Described elasticity plasticizer is the composition of friction powder and red vermiculite, and the mass percent of described friction powder and red vermiculite is respectively 3-4%, 1.5-2.5%; Described friction powder is cashew nut oil friction powder
Described stuffing is the composition of light magnesium oxide, blanc fixe and precipitated calcium carbonate, and the mass percent of described light magnesium oxide, blanc fixe and precipitated calcium carbonate is 3.8-4.6%, 15-17%, 6-7% respectively.
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| CN104315044A (en) * | 2014-08-18 | 2015-01-28 | 安徽惠明机械制造有限公司 | Shell of brake disc for car |
| CN104315044B (en) * | 2014-08-18 | 2017-01-11 | 安徽惠明机械制造有限公司 | Shell of brake disc for car |
| CN104533996A (en) * | 2014-12-11 | 2015-04-22 | 来安县隆华摩擦材料有限公司 | High-twist all-copper corrosion-resistant friction plate |
| CN108644271A (en) * | 2018-05-11 | 2018-10-12 | 来安县隆华摩擦材料有限公司 | A kind of manufacturing process of copper-based clutch friction plate |
| CN109020307A (en) * | 2018-07-11 | 2018-12-18 | 浙江昌达汽车零部件制造有限公司 | A kind of Automotive Friction Material half wet process mixing depositing dust technique |
| CN110131342A (en) * | 2019-03-28 | 2019-08-16 | 南通万达摩擦材料有限公司 | A kind of semimetal friction material and the method for preparing friction plate |
| CN110206838A (en) * | 2019-03-28 | 2019-09-06 | 南通万达摩擦材料有限公司 | A kind of preparation method of clutch surface friction material |
| CN111087195A (en) * | 2019-12-24 | 2020-05-01 | 句容市宝亚汽车摩擦材料配件有限公司 | Friction plate and manufacturing method thereof |
| CN114962510A (en) * | 2022-06-07 | 2022-08-30 | 枣阳风神摩擦材料有限公司 | Drum type friction plate and preparation method thereof |
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| CN103291789B (en) | 2016-01-20 |
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