CN103291789B - A kind of preparation method of automobile friction - Google Patents
A kind of preparation method of automobile friction Download PDFInfo
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- CN103291789B CN103291789B CN201310219962.1A CN201310219962A CN103291789B CN 103291789 B CN103291789 B CN 103291789B CN 201310219962 A CN201310219962 A CN 201310219962A CN 103291789 B CN103291789 B CN 103291789B
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Abstract
The invention discloses a kind of preparation method of automobile friction, step comprises: batch mixing, cold pressing, hot pressing, heat treatment, flat surface grinding.Preparation method of the present invention is by unique batch mixing order and heat treatment, the friction plate rigidity of preparation and good toughness, there is good braking, wear resistance, braking is steady, dust is few, and hardness is moderate, and heat fade is little, high temperature restorability is good, reduce noise pollution, improve the performance of brake system of car.<!--1-->
Description
Technical field
The invention belongs to special material technical field, particularly a kind of preparation method of automobile friction.
Background technique
It is not high to there is combination property in current automobile brake friction plate, the problem that various performance can not be taken into account, as some strength and toughness is not enough, high-temperature hot decline is large, rubbing and examine coefficient instability in brake temperature-rise period, has skidding simultaneously, brake locking and the ash that falls serious, the deficiency of formula system in addition, make frictional interface not lubricate damping layer, product is in use braked shakiness, wound dish, reduce working life, produce the defects such as the noise making people insufferable and exist.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of preparation method of automobile friction, the friction plate rigidity using preparation method of the present invention to prepare and good toughness, there is good braking, wear resistance, braking is steady, dust is few, and hardness is moderate, and heat fade is little, high temperature restorability is good.
The technical solution used in the present invention is:
A preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in high speed mixer; Described batch mixing order is: steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 10 ± 2min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 10 ± 2min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 25 ± 5min in batch mixer
B, to cold pressing: pressure is 250-300Kg/cm
2, dwell time 40-50s; Blank size is advisable with product thickness+(4-5) mm;
C, hot pressing: pressure 500-550Kg/cm
2, hot pressing temperature 155 ± 5 DEG C, dwell time 360 ± 10s; Exit in 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: heat up 1.5 ± 0.25h, constant temperature 2 ± 0.5h in room temperature ~ 120 DEG C; 120 ~ 150 DEG C of heat up 2.5 ± 0.25h, constant temperature 2.5 ± 0.5h; 150 ~ 180 DEG C of heat up 1.5 ± 0.25h, constant temperature 2 ± 0.5h; 180 ~ 200 DEG C of heat up 2 ± 0.25h, constant temperature 3.5 ± 0.5h; Then room temperature is naturally cooled to;
E, flat surface grinding.
The each raw material components weight percentage of described friction plate is respectively: binder 8% ~ 15%, strengthening agent 24% ~ 33%, increasing grinding agent 7.2-9.8%, antifriction lubricant 16.5% ~ 20%, elastomeric toughening agent 4.5% ~ 6.5%, stuffing 24.8% ~ 30.6%;
Described binder is the composition of nanometer phenolic aldehyde resin, nitrile rubber and styrene butadiene rubber, and the mass percent of described nanometer phenolic aldehyde 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 the mass percent of described Steel Fibre, aramid fibre, carbon fiber, mineral fibre, red copper fiber, copper fiber, polypropylene fiber and paper fiber is respectively 6-7%, 0.5-1.5%, 2.5-3.5%, 6-8%, 4-6%, 2-4%, 1-2%, 2-3%;
Described increasing grinding agent is the composition that NJF increases grinding agent, reducing iron powder, iron oxide yellow and iron oxide red for bis-times, and the mass percent that described NJF increases grinding agent, reducing iron powder, iron oxide yellow and iron oxide red for bis-times 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 metallic aluminum powder, zinc powder, mica and calcined petroleum coke, and the mass percent of described metallic aluminum powder, zinc powder, mica and calcined petroleum coke is respectively 2-3%, 1.5-2.5%, 3-4%, 10-10.5%;
Described elastomeric toughening agent is the composition of Frication powder and red vermiculite, and the mass percent of described Frication powder and red vermiculite is respectively 3-4%, 1.5-2.5%; Described Frication powder is cashew nut oil Frication powder;
Described stuffing is the composition of light magnesium oxide, blanc fixe and precipitated calcium carbonate, mass percent 3.8-4.6%, 15-17%, 6-7% respectively of described light magnesium oxide, blanc fixe and precipitated calcium carbonate.
Preparation method of the present invention is by unique batch mixing order and heat treatment, the friction plate rigidity of preparation and good toughness, there is good braking, wear resistance, braking is steady, dust is few, and hardness is moderate, and heat fade is little, high temperature restorability is good, reduce noise pollution, improve the performance of brake system of car.
Embodiment
Embodiment 1
A preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing order is: steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 10min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 10min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 25min in batch mixer
B, to cold pressing: pressure is 280Kg/cm
2, dwell time 45s;
C, hot pressing: pressure 530Kg/cm
2, hot pressing temperature 155 DEG C, exits in pressure maintaining period, is 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 DEG C intensification 1.5h, constant temperature 2h; 120 ~ 150 DEG C of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 DEG C of intensification 1.5h, constant temperature 2h; 180 ~ 200 DEG C of intensification 2h, constant temperature 3.5h; Then room temperature is naturally cooled to;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, one side shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, and finished product is put in storage, finished product batch sampling observation, finished product outbound.
The each raw material components of the friction plate used in preparation method and content are in table 1.
Embodiment 2
A preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing order is: steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 8min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 12min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 30min in batch mixer
B, to cold pressing: pressure is 300Kg/cm
2, dwell time 40s;
C, hot pressing: pressure 550Kg/cm
2, hot pressing temperature 150 DEG C, exits in pressure maintaining period, is 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 DEG C intensification 1.75h, constant temperature 1.5h; 120 ~ 150 DEG C of intensification 2.75h, constant temperature 2.0h; 150 ~ 180 DEG C of intensification 1.75h, constant temperature 1.5h; 180 ~ 200 DEG C of intensification 2.25h, constant temperature 3h; Then room temperature is naturally cooled to;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, one side shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, and finished product is put in storage, finished product batch sampling observation, finished product outbound.
The each raw material components of the friction plate used in preparation method and content are in table 1.
Embodiment 3
A preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing order is: steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 12min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 8min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 20min in batch mixer
B, to cold pressing: pressure is 250Kg/cm
2, dwell time 50s;
C, hot pressing: pressure 500Kg/cm
2, hot pressing temperature 160 DEG C, exits in pressure maintaining period, is 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 DEG C intensification 1.25h, constant temperature 2.5h; 120 ~ 150 DEG C of intensification 2.25h, constant temperature 3h; 150 ~ 180 DEG C of intensification 1.25h, constant temperature 2.5h; 180 ~ 200 DEG C of intensification 1.85h, constant temperature 4h; Then room temperature is naturally cooled to;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, one side shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, and finished product is put in storage, finished product batch sampling observation, finished product outbound.
The each raw material components of the friction plate used in preparation method and content are in table 1.
Embodiment 4
A preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing order is: steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 10min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 10min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 25min in batch mixer
B, to cold pressing: pressure is 260Kg/cm
2, dwell time 40s;
C, hot pressing: pressure 520Kg/cm
2, hot pressing temperature 160 DEG C, exits in pressure maintaining period, is 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 DEG C intensification 1.5h, constant temperature 2h; 120 ~ 150 DEG C of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 DEG C of intensification 1.5h, constant temperature 2h; 180 ~ 200 DEG C of intensification 2h, constant temperature 3.5h; Then room temperature is naturally cooled to;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, one side shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, and finished product is put in storage, finished product batch sampling observation, finished product outbound.
The each raw material components of the friction plate used in preparation method and content are in table 1.
Embodiment 5
A preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing order is: steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 10min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 10min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 30min in batch mixer
B, to cold pressing: pressure is 260Kg/cm
2, dwell time 45s;
C, hot pressing: pressure 540Kg/cm
2, hot pressing temperature 155 DEG C, exits in pressure maintaining period, is 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 DEG C intensification 1.5h, constant temperature 2h; 120 ~ 150 DEG C of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 DEG C of intensification 1.5h, constant temperature 2h; 180 ~ 200 DEG C of intensification 2h, constant temperature 3.5h; Then room temperature is naturally cooled to;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, one side shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, and finished product is put in storage, finished product batch sampling observation, finished product outbound.
The each raw material components of the friction plate used in preparation method and content are in table 1.
Embodiment 6
A preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in 1200 liters of pears rake high speed mixers; Described batch mixing order is: steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 10min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 10min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 25min in batch mixer
B, to cold pressing: pressure is 280Kg/cm
2, dwell time 45s;
C, hot pressing: pressure 520Kg/cm
2, hot pressing temperature 160 DEG C, exits in pressure maintaining period, is 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 DEG C intensification 1.5h, constant temperature 2h; 120 ~ 150 DEG C of intensification 2.5h, constant temperature 2.5h; 150 ~ 180 DEG C of intensification 1.5h, constant temperature 2h; 180 ~ 200 DEG C of intensification 2h, constant temperature 3.5h; Then room temperature is naturally cooled to;
E, use surface grinding machine flat surface grinding, the oblique machine fluting of full-automatic fluting mill grinds tiltedly, one side shot blasting, full-automatic high-pressure electrostatic spraying, coding, riveting annex, full-automatic blister plastic packaging, Checking of finished products, and finished product is put in storage, finished product batch sampling observation, finished product outbound.
The each raw material components of the friction plate used in preparation method and content are in table 1.
The component of table 1 embodiment 1 ~ 6 friction material and content
The performance test data of automobile friction prepared by table 2 embodiment 1 ~ 6
| 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 (3)
1. a preparation method for automobile friction, step comprises:
A, batch mixing: take each raw material components of friction plate by formula ratio, batch mixing in high speed mixer;
B, to cold pressing: pressure is 250-300Kg/cm
2, dwell time 40-50s;
C, hot pressing: pressure 500-550Kg/cm
2, hot pressing temperature 155 ± 5 DEG C, dwell time 360 ± 10s;
D, heat treatment: heat up 1.5 ± 0.25h, constant temperature 2 ± 0.5h in room temperature ~ 120 DEG C; 120 ~ 150 DEG C of heat up 2.5 ± 0.25h, constant temperature 2.5 ± 0.5h; 150 ~ 180 DEG C of heat up 1.5 ± 0.25h, constant temperature 2 ± 0.5h; 180 ~ 200 DEG C of heat up 2 ± 0.25h, constant temperature 3.5 ± 0.5h; Then room temperature is naturally cooled to;
E, flat surface grinding;
Batch mixing order in described steps A is that steel wool, mineral fibre, carbon fiber, iron oxide yellow, iron oxide red, light magnesium oxide, NJF are increased batch mixing 10 ± 2min in grinding agent, reducing iron powder, metallic aluminum powder, mica, zinc powder, calcium carbonate, red vermiculite, blanc fixe input batch mixer for bis-times, then resin, nitrile rubber, styrene butadiene rubber, aramid fibre, polypropylene fiber are dropped into batch mixing 10 ± 2min in batch mixer, finally Frication powder, red copper fiber, copper fiber, paper fiber, calcined petroleum coke are dropped into batch mixing 25 ± 5min in batch mixer.
2. preparation method as claimed in claim 1, is characterized in that: exit in pressure maintaining period in 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.
3. the preparation method as described in any one of claim 1 ~ 2, is characterized in that: each raw material components weight percentage of described friction plate is: binder 8% ~ 15%, strengthening agent 24% ~ 33%, increasing grinding agent 7.2-9.8%, antifriction lubricant 16.5% ~ 20%, elastomeric toughening agent 4.5% ~ 6.5%, stuffing 24.8% ~ 30.6%;
Described binder is the composition of nanometer phenolic aldehyde resin, nitrile rubber and styrene butadiene rubber, and the mass percent of described nanometer phenolic aldehyde 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 the mass percent of described Steel Fibre, aramid fibre, carbon fiber, mineral fibre, red copper fiber, copper fiber, polypropylene fiber and paper fiber is respectively 6-7%, 0.5-1.5%, 2.5-3.5%, 6-8%, 4-6%, 2-4%, 1-2%, 2-3%;
Described increasing grinding agent is the composition that NJF increases grinding agent, reducing iron powder, iron oxide yellow and iron oxide red for bis-times, and the mass percent that described NJF increases grinding agent, reducing iron powder, iron oxide yellow and iron oxide red for bis-times 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 metallic aluminum powder, zinc powder, mica and calcined petroleum coke, and the mass percent of described metallic aluminum powder, zinc powder, mica and calcined petroleum coke is respectively 2-3%, 1.5-2.5%, 3-4%, 10-10.5%;
Described elastomeric toughening agent is the composition of Frication powder and red vermiculite, and the mass percent of described Frication powder and red vermiculite is respectively 3-4%, 1.5-2.5%; Described Frication powder is cashew nut oil Frication powder;
Described stuffing is the composition of light magnesium oxide, blanc fixe and precipitated calcium carbonate, mass percent 3.8-4.6%, 15-17%, 6-7% respectively of described light magnesium oxide, blanc fixe and precipitated calcium carbonate.
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Cited By (1)
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| CN108679130A (en) * | 2018-05-10 | 2018-10-19 | 来安县隆华摩擦材料有限公司 | A kind of heat treatment method of Friction Facing on Clutch Disc in Heavy |
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| CN104315043A (en) * | 2014-08-18 | 2015-01-28 | 安徽惠明机械制造有限公司 | 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 |
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| 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 |
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