CN107881396A - A kind of preparation method of automobile brake sheet low noise powdered metallurgical material - Google Patents
A kind of preparation method of automobile brake sheet low noise powdered metallurgical material Download PDFInfo
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- CN107881396A CN107881396A CN201711235761.5A CN201711235761A CN107881396A CN 107881396 A CN107881396 A CN 107881396A CN 201711235761 A CN201711235761 A CN 201711235761A CN 107881396 A CN107881396 A CN 107881396A
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- parts
- powder
- low noise
- automobile brake
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/06—Alloys containing less than 50% by weight of each constituent containing zinc
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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Abstract
A kind of preparation method the invention discloses automobile brake sheet with low noise powdered metallurgical material, this method weigh each raw material by weight；Then each raw material after mixed grinding 60 90 minutes, is loaded mould, base is pressed under 580 590Mpa at 75 80 DEG C；Pressure embryo is loaded in graphite or ceramics burning boat, sintered in the sintering furnace containing nitrogen group protecting atmosphere, sintering temperature is：1050℃‑1100℃；Soaking time：1h‑1.5h；Cool to again at 650 680 DEG C and be incubated 23 hours, taking-up is put into 0 DEG C of frozen water, is cooled to room temperature, is produced by grinding.The material combination that the present invention passes through optimization, proportioning and production technology are rationally set, the automobile brake sheet low noise powdered metallurgical material of formation has preferable comprehensive mechanical property, not only there is the characteristics of higher intensity and hardness, wearability is good, good toughness is kept again, the steady quality of alloy is homogeneous, the characteristic of low noise.
Description
Technical field
The invention belongs to field of powder metallurgy, is related to a kind of preparation side of automobile brake sheet low noise powdered metallurgical material
Method.
Technical background
With the fast development of auto industry, car ownership is also constantly expanding, and automobile brake sheet is used as automobile system
The critical component of dynamic system, need to meet that brake safe is reliable, operate steadily noiseless requirement.The brakes of car be by
What brake oil pump, braking clamp, brake block, brake disc etc. four largely formed, the quality for the piece performance that brakes is directly related to automobile
Reliability of operation, stability and security.The brake pad of car is made up of steel back, friction material and annex, the friction material
It is bonded in steel back, brake pad of car is arranged on car by braking clamp.The brake block for being presently used for car brake mainly has
Three kinds below, its existing deficiency is：The formula of asbestos base brake block friction material is mainly using asbestos fibre as framework material, stone
Cotton content reaches 40%~50%, adds the multi-element composite material of other functional fillers to form again using phenolic resin as binding agent.
Because human body suction asbestos fibre will cause physical health issues, therefore limited and use by developed country.In addition, asbestos base is stopped
Car piece heat is lost seriously, is not suitable with the braking of car high-speed cruising.The formula of Friction material of semimetal brake pad is mainly by steel fibre
As framework material, for phenolic resin as adhesive, iron powder adds the multiple elements design of various functions filler as anti-wear agent
Material forms.Due to largely adding metal material in semimetal friction material, therefore its proportion significantly increases with thermal conductivity, to right
Even aggressive enhancing, gets rusty easily, low frequency noise etc. occurs.High specific gravity, complete vehicle weight, increase driving cost will be increased.
The increase of heat conductivility, shearing strength of the brake block under applied at elevated temperature situation will be weakened, trigger braking dangerous.In addition, mistake
High thermal conductivity also can by vehicle, caused a large amount of heat energy pass to brake valve in frequent braking rapidly, make to produce in hydraulic braking pipe
Anger bubble and vapour lock, so as to have a strong impact on security during vehicle braking.The formula of organic ceramic base brake block friction material is
A small amount of copper fiber, ceramic fibre, mineral fibres and Kafra fiber is matrix, and phenolic resin adds more as binding agent
The multi-element composite material composition of kind functional ceramic material.Its shortcoming is：Large-scale SUV vehicles are not applied to, and it is expensive, one
As consumer it is beyond affordability.
The preparation method of existing brake pad of car is mainly used based on dry method batch mixing, and wherein moulding process is mainly by two step method
The production of board-like mould, it is the shortcomings that the preparation method：The yield rate of brake block is low, the production cycle is long, low production efficiency, the matter of product
Measure unstable, mechanization degree is not high, and energy resource consumption is big.With the continuous expansion of market for automobiles, it is necessary to pay attention to brake block with
The performance of velocity correlation.And powder metallurgy is not limited by melting, alloying component can be both added, other structures group can also be added
Point, and be adjusted as requested in sizable scope, and then the effect with Components Matching can be reached in mechanical property
Fruit.Powder metallurgy mechanization degree is high, can reduce personnel, and and can improves efficiency, and then cost-effective.PM technique energy
Substitute traditional manufacturing process, be that the vast traditional forms of enterprises is cost-effective.So study a kind of powder of automobile brake sheet low noise
Last metallurgical formula, adapts to different needs, has great importance.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of automobile brake sheet low noise powder metallurgy
The preparation method of material.
The purpose of the present invention is achieved through the following technical solutions：A kind of automobile brake sheet low noise powder metallurgy material
The preparation method of material, comprises the following steps：
（1）Copper powder 20-30 parts, chromite powder 10-20 parts, attapulgite 6-14 parts, calcium silicate ceramic powder 3- are weighed by weight
11 parts, cinnabar powder 3-8 parts, schmigel 2-3 parts, zinc oxide 2-3 parts, titanium dioxide 1-2 parts, kaolin powder 5-6 parts, three oxidation two
Tin 3-11 parts, nickel powder 10-20 parts, nano-diamond powder 2-4 parts, hafnium boride 1-6 parts, barium sulfate 2-8 parts, talcum 4-8 parts, activity
Powdered carbon 10-14 parts, aliphatic acid diamides 1-3 powder, auxiliary agent 12-16 parts；
（2）Then each raw material after mixed grinding 60-90 minutes, is loaded mould, be pressed under 580-590Mpa at 75-80 DEG C
Base；
（3）Pressure embryo is loaded in graphite or ceramics burning boat, sintered in the sintering furnace containing nitrogen group protecting atmosphere, sintering temperature
For：1050℃-1100℃；Soaking time：1h-1.5h；
（4）Insulation 2-3 hours at 650-680 DEG C are cooled to again, and taking-up is put into 0 DEG C of frozen water, is cooled to room temperature, is added by grinding
Work produces.
25 parts of copper powder, 15 parts of chromite powder, 10 parts of attapulgite, 7 parts of calcium silicate ceramic powder, cinnabar powder are weighed by weight
5 parts, 2.5 parts of schmigel, 2.5 parts of zinc oxide, 1.5 parts of titanium dioxide, 5.5 parts of kaolin powder, three oxidation 7 parts of two tin, nickel powder 15
Part, 3 parts of nano-diamond powder, 4 parts of hafnium boride, 5 parts of barium sulfate, 6 parts of talcum, 12 parts of active powdered carbon, the powder of aliphatic acid diamides 2,
14 parts of auxiliary agent.
The auxiliary agent compares 3-6 by nano-sized carbon, polypropylene glycerol aether, sodium alginate, alum according to weight：1-5：2-3：2-
4 compositions.
The nickel powder is carbonyl nickel powder, and the granularity of the carbonyl nickel powder is no more than 5 microns.
The copper powder is electrolytic copper powder, and the granularity of the electrolytic copper powder is 160-200 mesh.
The invention has the advantages that：The present invention rationally sets proportioning and production work by the material combination of optimization
Skill, the automobile brake sheet low noise powdered metallurgical material of formation have preferable comprehensive mechanical property, not only have higher
The characteristics of intensity and good hardness, wearability, good toughness is kept again, the steady quality of alloy is homogeneous, the characteristic of low noise.
Embodiment
The preparation process of above-mentioned powdered metallurgical material is further described with various specific examples below：
Embodiment 1
A kind of automobile brake sheet preparation method of low noise powdered metallurgical material, comprises the following steps：
（1）20 parts of copper powder, 10 parts of chromite powder, 6 parts of attapulgite, 3 parts of calcium silicate ceramic powder, cinnabar powder 3 are weighed by weight
Part, 2 parts of schmigel, 2 parts of zinc oxide, 1 part of titanium dioxide, 5 parts of kaolin powder, three 3 parts of two tin of oxidation, 10 parts of nickel powder, nanogold
2 parts of emery, 1 part of hafnium boride, 2 parts of barium sulfate, 4 parts of talcum, 10 parts of active powdered carbon, the powder of aliphatic acid diamides 1,12 parts of auxiliary agent；
Auxiliary agent is by nano-sized carbon, polypropylene glycerol aether, sodium alginate, alum according to weight than 3：1：2：2 compositions.Nickel powder is carbonyl nickel
Powder, the granularity of the carbonyl nickel powder is no more than 5 microns.Copper powder is electrolytic copper powder, and the granularity of the electrolytic copper powder is 160-200 mesh.
（2）Then each raw material after mixed grinding 60-90 minutes, is loaded into mould at 75-80 DEG C, 580-590Mpa is pushed
Base is made；
（3）Pressure embryo is loaded in graphite or ceramics burning boat, sintered in the sintering furnace containing nitrogen group protecting atmosphere, sintering temperature
For：1050℃-1100℃；Soaking time：1h-1.5h；
（4）Insulation 2-3 hours at 650-680 DEG C are cooled to again, and taking-up is put into 0 DEG C of frozen water, is cooled to room temperature, is added by grinding
Work produces.
The hardness of the powdered metallurgical material prepared according to above-mentioned technique is 60HB, compression strength 142MPa, is higher than in temperature
At 700 DEG C, heat fading phenomenon unobvious, braking ability is stable, is zero during more than 80db less than 4% when noise is more than 70db；Rub
It is small to wipe index variation scope, 0.38 ＜ μ ＜ 0.41, wear rate is 0.32 × 104 mg/Nm。
Embodiment 2
A kind of automobile brake sheet preparation method of low noise powdered metallurgical material, comprises the following steps：
（1）30 parts of copper powder, 20 parts of chromite powder, 14 parts of attapulgite, 11 parts of calcium silicate ceramic powder, cinnabar powder are weighed by weight
8 parts, 3 parts of schmigel, 3 parts of zinc oxide, 2 parts of titanium dioxide, 6 parts of kaolin powder, three oxidation 11 parts of two tin, nickel powder 20 part, nanometer
4 parts of bortz powder, 6 parts of hafnium boride, 8 parts of barium sulfate, 8 parts of talcum, 14 parts of active powdered carbon, the powder of aliphatic acid diamides 3, auxiliary agent 16
Part；Auxiliary agent is by nano-sized carbon, polypropylene glycerol aether, sodium alginate, alum according to weight than 6：5：3：4 compositions.Nickel powder is carbonyl
Base nickel powder, the granularity of the carbonyl nickel powder is no more than 5 microns.Copper powder is electrolytic copper powder, and the granularity of the electrolytic copper powder is 160-200
Mesh.
（2）Then each raw material after mixed grinding 60-90 minutes, is loaded into mould at 75-80 DEG C, 580-590Mpa is pushed
Base is made；
（3）Pressure embryo is loaded in graphite or ceramics burning boat, sintered in the sintering furnace containing nitrogen group protecting atmosphere, sintering temperature
For：1050℃-1100℃；Soaking time：1h-1.5h；
（4）Insulation 2-3 hours at 650-680 DEG C are cooled to again, and taking-up is put into 0 DEG C of frozen water, is cooled to room temperature, is added by grinding
Work produces.
The hardness of the powdered metallurgical material prepared according to above-mentioned technique is 60HB, compression strength 144MPa, is higher than in temperature
At 700 DEG C, heat fading phenomenon unobvious, braking ability is stable, is zero during more than 80db less than 4% when noise is more than 70db；Rub
It is small to wipe index variation scope, 0.38 ＜ μ ＜ 0.41, wear rate is 0.31 × 104 mg/Nm。
Embodiment 3
A kind of automobile brake sheet preparation method of low noise powdered metallurgical material, comprises the following steps：
（1）25 parts of copper powder, 15 parts of chromite powder, 10 parts of attapulgite, 7 parts of calcium silicate ceramic powder, cinnabar powder 5 are weighed by weight
Part, 2.5 parts of schmigel, 2.5 parts of zinc oxide, 1.5 parts of titanium dioxide, 5.5 parts of kaolin powder, three 7 parts of two tin of oxidation, nickel powder 15
Part, 3 parts of nano-diamond powder, 4 parts of hafnium boride, 5 parts of barium sulfate, 6 parts of talcum, 12 parts of active powdered carbon, the powder of aliphatic acid diamides 2,
14 parts of auxiliary agent；Auxiliary agent is by nano-sized carbon, polypropylene glycerol aether, sodium alginate, alum according to weight than 4.5：3：2.5：3 compositions
's.Nickel powder is carbonyl nickel powder, and the granularity of the carbonyl nickel powder is no more than 5 microns.Copper powder is electrolytic copper powder, the grain of the electrolytic copper powder
Spend for 160-200 mesh.
（2）Then each raw material after mixed grinding 60-90 minutes, is loaded into mould at 75-80 DEG C, 580-590Mpa is pushed
Base is made；
（3）Pressure embryo is loaded in graphite or ceramics burning boat, sintered in the sintering furnace containing nitrogen group protecting atmosphere, sintering temperature
For：1050℃-1100℃；Soaking time：1h-1.5h；
（4）Insulation 2-3 hours at 650-680 DEG C are cooled to again, and taking-up is put into 0 DEG C of frozen water, is cooled to room temperature, is added by grinding
Work produces.
The hardness of the powdered metallurgical material prepared according to above-mentioned technique is 62HB, compression strength 152MPa, is higher than in temperature
At 700 DEG C, heat fading phenomenon unobvious, braking ability is stable, is zero during more than 80db less than 4% when noise is more than 70db；Rub
It is small to wipe index variation scope, 0.38 ＜ μ ＜ 0.41, wear rate is 0.27 × 104 mg/Nm。
Claims (5)
1. a kind of automobile brake sheet preparation method of low noise powdered metallurgical material, it is characterised in that methods described includes following
Step：（1）Copper powder 20-30 parts, chromite powder 10-20 parts, attapulgite 6-14 parts, calcium silicate ceramic powder 3- are weighed by weight
11 parts, cinnabar powder 3-8 parts, schmigel 2-3 parts, zinc oxide 2-3 parts, titanium dioxide 1-2 parts, kaolin powder 5-6 parts, three oxidation two
Tin 3-11 parts, nickel powder 10-20 parts, nano-diamond powder 2-4 parts, hafnium boride 1-6 parts, barium sulfate 2-8 parts, talcum 4-8 parts, activity
Powdered carbon 10-14 parts, aliphatic acid diamides 1-3 powder, auxiliary agent 12-16 parts；
（2）Then each raw material after mixed grinding 60-90 minutes, is loaded mould, be pressed under 580-590Mpa at 75-80 DEG C
Base；
（3）Pressure embryo is loaded in graphite or ceramics burning boat, sintered in the sintering furnace containing nitrogen group protecting atmosphere, sintering temperature
For：1050℃-1100℃；Soaking time：1h-1.5h；
（4）Insulation 2-3 hours at 650-680 DEG C are cooled to again, and taking-up is put into 0 DEG C of frozen water, is cooled to room temperature, is added by grinding
Work produces.
2. a kind of preparation method of automobile brake sheet low noise powdered metallurgical material according to claim 1, its feature
It is：25 parts of copper powder, 15 parts of chromite powder, 10 parts of attapulgite, 7 parts of calcium silicate ceramic powder, cinnabar powder 5 are weighed by weight
Part, 2.5 parts of schmigel, 2.5 parts of zinc oxide, 1.5 parts of titanium dioxide, 5.5 parts of kaolin powder, three 7 parts of two tin of oxidation, nickel powder 15
Part, 3 parts of nano-diamond powder, 4 parts of hafnium boride, 5 parts of barium sulfate, 6 parts of talcum, 12 parts of active powdered carbon, the powder of aliphatic acid diamides 2,
14 parts of auxiliary agent.
3. a kind of preparation method of automobile brake sheet low noise powdered metallurgical material according to claim 1, its feature
It is：The auxiliary agent compares 3-6 by nano-sized carbon, polypropylene glycerol aether, sodium alginate, alum according to weight：1-5：2-3：2-4 groups
Into.
4. a kind of preparation method of automobile brake sheet low noise powdered metallurgical material according to claim 1, its feature
It is：The nickel powder is carbonyl nickel powder, and the granularity of the carbonyl nickel powder is no more than 5 microns.
5. a kind of preparation method of automobile brake sheet low noise powdered metallurgical material according to claim 1, its feature
It is：The copper powder is electrolytic copper powder, and the granularity of the electrolytic copper powder is 160-200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711235761.5A CN107881396A (en) | 2017-11-30 | 2017-11-30 | A kind of preparation method of automobile brake sheet low noise powdered metallurgical material |
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| CN201711235761.5A CN107881396A (en) | 2017-11-30 | 2017-11-30 | A kind of preparation method of automobile brake sheet low noise powdered metallurgical material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517905A (en) * | 2020-11-29 | 2021-03-19 | 无锡钊厚金属制造有限公司 | Preparation method of brake pad friction block |
| CN116730741A (en) * | 2023-08-14 | 2023-09-12 | 衡水中裕铁信环保工程有限公司 | Ceramic sound absorption material for sound barrier and preparation method thereof |
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| CN103540847A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy automobile brake pad steel back and preparation method thereof |
| CN103551561A (en) * | 2013-10-11 | 2014-02-05 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy automobile transmission synchronizer gear and production method thereof |
| CN107326247A (en) * | 2017-06-16 | 2017-11-07 | 苏州莱特复合材料有限公司 | A kind of preparation method of heat resistant and wear resistant piston |
| CN107363261A (en) * | 2017-06-16 | 2017-11-21 | 苏州莱特复合材料有限公司 | A kind of preparation method of ferrous based powder metallurgical ratchet |
| CN107377979A (en) * | 2017-06-16 | 2017-11-24 | 苏州莱特复合材料有限公司 | A kind of preparation method of anti-corrosion compressor valve plate |
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2017
- 2017-11-30 CN CN201711235761.5A patent/CN107881396A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103540847A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy automobile brake pad steel back and preparation method thereof |
| CN103551561A (en) * | 2013-10-11 | 2014-02-05 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy automobile transmission synchronizer gear and production method thereof |
| CN107326247A (en) * | 2017-06-16 | 2017-11-07 | 苏州莱特复合材料有限公司 | A kind of preparation method of heat resistant and wear resistant piston |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517905A (en) * | 2020-11-29 | 2021-03-19 | 无锡钊厚金属制造有限公司 | Preparation method of brake pad friction block |
| CN116730741A (en) * | 2023-08-14 | 2023-09-12 | 衡水中裕铁信环保工程有限公司 | Ceramic sound absorption material for sound barrier and preparation method thereof |
| CN116730741B (en) * | 2023-08-14 | 2023-10-03 | 衡水中裕铁信环保工程有限公司 | Ceramic sound absorption material for sound barrier and preparation method thereof |
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Application publication date: 20180406 |