CN112538588B - Iron oxide environment-friendly material and preparation method and application thereof - Google Patents
Iron oxide environment-friendly material and preparation method and application thereof Download PDFInfo
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- CN112538588B CN112538588B CN202011423859.5A CN202011423859A CN112538588B CN 112538588 B CN112538588 B CN 112538588B CN 202011423859 A CN202011423859 A CN 202011423859A CN 112538588 B CN112538588 B CN 112538588B
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 210000002268 wool Anatomy 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 239000002783 friction material Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical group [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 3
- 238000004663 powder metallurgy Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005562 fading Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000011068 loading method Methods 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 208000011191 Pulmonary vascular disease Diseases 0.000 description 1
- 208000027515 Tracheal disease Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000002216 heart Anatomy 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000005265 lung cell Anatomy 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/12—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on oxides
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- 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
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0026—Non-ferro
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention belongs to the field of materials, and particularly relates to an iron oxide environment-friendly material as well as a preparation method and application thereof. An iron oxide environment-friendly material is composed of the following raw materials in parts by weight: 35-45 parts of ferrite, 30-45 parts of iron powder, 10-20 parts of steel wool and 20-30 parts of zinc powder. The brake pad prepared from the iron oxide environment-friendly material provided by the invention has stable friction coefficient and no heat fading; has a sufficiently small wear amount and thus a long service life; the abrasion and scratch to the brake disc are relatively minimum, no noise is generated, the preparation method is simple and convenient, and the industrial production is met.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to an iron oxide environment-friendly material as well as a preparation method and application thereof.
Background
The friction material of the existing automobile brake pad is made of thermosetting high polymer material similar to phenolic resin, and is formed by mixing ceramic particles formed by thermally bonding various combinations of silicide, carbide, nitride, oxide and the like. Although the brake pad completely meets the service performance requirements in the aspect of automobile braking, phenol, formaldehyde and derivatives thereof are released in the braking process due to thermal oxidation degradation, and toxic substances are emitted in the living environment of human beings. More seriously, the ceramic substance in the brake pad is abraded to form PM 2.5 dust which is discharged into the air, and the dust, like asbestos, has great harm to the health of people. After the micro-dust enters the body, the 'micro-acid' and 'micro-base' substances in the human body can not change the properties and the forms of the substances, and the substances can be deposited in organs such as lung cells, blood vessels, hearts and the like of the human body to form spots and blocks, so that the organs of the human body are diseased. This should be the main reason for the recent development of pulmonary, tracheal, cardiovascular and cerebrovascular diseases.
Meanwhile, the research and development group carries out replacement research and development on the friction material of the brake pad, and the pure iron oxide material cannot become the friction material of the brake pad in the replacement process, so that the friction material is fragile and easy to crack, and the performance cannot reach the standard. Based on the above, the research and development group further improves on the basis of iron oxide, and proposes that the iron-based ferrite replaces the existing ceramic brake pad, so that the emission of toxic gases such as phenol and formaldehyde is avoided, and the emission of ceramic PM 2.5 dust is also avoided. Although a certain amount of dust is generated in the use of the brake pad made of the iron oxide environment-friendly material, the chemical component of the dust is the iron oxide which is harmless to human bodies, and on the other hand, the iron oxide is not easy to diffuse and float in the air due to the large specific gravity and the tiny dust is gathered and falls to the ground due to the strong water absorption of the iron oxide. Compared with the prior art, the pollution degree of the air conditioner to the air is obviously better. Accordingly, the present invention is particularly set forth.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects and shortcomings in the background art and provide an iron oxide environment-friendly material which is safe and nontoxic to use and has excellent comprehensive performance, and a preparation method and application thereof. The brake pad prepared from the iron oxide environment-friendly material provided by the invention has stable friction coefficient and no heat fading; has a sufficiently small wear amount and thus a long service life; the abrasion and scratch to the brake disc are relatively minimum, no noise is generated, the preparation method is simple and convenient, and the industrial production is met.
In order to solve the above technical problems, the present invention provides the following technical solutions.
An iron oxide environment-friendly material is composed of the following raw materials in parts by weight: 35-45 parts of ferrite, 30-45 parts of iron powder, 10-20 parts of steel wool and 20-30 parts of zinc powder.
Further, the ferrite is strontium ferrite, and the particle size is 40 micrometers.
Furthermore, the iron powder is pure iron powder with the granularity of 120 meshes.
Further, the steel wool is D1-80 or D0-160。
Furthermore, the particle size of the zinc powder is 120 meshes.
The application of the iron oxide environment-friendly material in preparing powder metallurgy friction materials.
The iron oxide environment-friendly material is used for preparing the automobile brake pad.
The preparation method of the iron oxide environment-friendly material comprises the following steps: and uniformly mixing the iron powder, the steel wool, the zinc powder and the ferrite in the raw materials to obtain the ferrite.
A preparation method of an iron oxide environment-friendly friction plate comprises the following steps.
(1) Mixing ferrite, iron powder, steel wool and zinc powder in the raw materials in a mixer (adding balls) and grinding for 12-48 hours to obtain powder.
(2) And pressing and molding the powder in a steel die, and then sintering.
(3) And obtaining the friction plate after sintering.
In the pressing process, the pressure is 4-5 tons/cm2。
The sintering temperature is 550-900 ℃.
The sintering time is 3-4 h; introducing N in the sintering process2And (4) protecting.
The heating rate in the sintering process is 50-100 ℃/h.
The friction plate can be sequentially combined with the heat insulation layer and the back plate into a whole to prepare the brake pad.
Compared with the prior art, the invention has the following beneficial effects.
The invention provides an iron oxide environment-friendly material which adopts a zinc iron-ferrite material, completely solves the environmental problems caused by completely using harmless substances, and the dust generated in the use of the automobile brake pad made of the zinc iron-ferrite material is harmless to human bodies. Compared with the traditional brake pad material, the iron oxide and the zinc oxide in the iron oxide environment-friendly material have strong water absorption, so that the dust is easy to gather and fall to the ground, and is not diffused and floated in the air.
Compared with the traditional brake pad, the automobile brake pad prepared from the iron oxide environment-friendly material provided by the invention has the advantages of low wear rate, high safety and high reliability. The ferrite material FeO (Fe 2O 3) is a spinel type system (or a trans-spinel structure), has good microhardness, can ensure the wear resistance of the brake pad and the effects of no scratch and little wear on a brake disc, and is a main matrix material of the brake pad.
Compared with the traditional brake pad, the automobile brake pad prepared from the iron oxide environment-friendly material provided by the invention has the advantages of low raw material and processing cost. The iron oxide has rich raw material resources, low price, low cost and strong practicability, and is basically equivalent to waste utilization.
Drawings
FIG. 1 is a schematic view of the friction plate of the present invention combined with a heat insulation layer and a back plate in sequence.
FIG. 2 is a process flow for manufacturing a friction plate according to the present invention. Wherein: 1-friction plate, 2-heat insulation layer and 3-back plate.
FIG. 3 is a test report of the brake pad of the present invention under different pressures.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below. Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
An iron oxide environment-friendly material is composed of the following raw materials in parts by weight: 35-45 parts of ferrite, 30-45 parts of iron powder, 10-20 parts of steel wool and 20-30 parts of zinc powder.
Further, the ferrite is strontium ferrite, and the particle size is 40 micrometers.
Furthermore, the iron powder is pure iron powder with the granularity of 120 meshes.
Further, the steel wool is D1-80 or D0-160。
Further, the granularity of the zinc powder is 120 meshes.
A preparation method of an iron oxide environment-friendly friction plate comprises the following steps.
(1) Mixing ferrite, iron powder, steel wool and zinc powder in the raw materials in a mixer (adding balls) and grinding for 12-48 hours to obtain powder.
(2) And pressing and molding the powder in a steel die, and then sintering.
(3) And obtaining the friction plate after sintering.
In the pressing process, the pressure is 4-5 tons/cm2。
The sintering temperature is 550-900 ℃.
The sintering time is 3-4 h; introducing N in the sintering process2And (4) protecting.
The heating rate in the sintering process is 50-100 ℃/h.
The friction plate can be sequentially combined with the heat insulation layer and the back plate into a whole to prepare the brake pad.
The embodiment discloses a preparation method and application of an iron oxide environment-friendly friction-protecting plate.
A preparation method of an iron oxide environment-friendly friction plate comprises the following steps.
(1) 40 parts of ferrite, 35 parts of iron powder, 15 parts of steel wool and 25 parts of zinc powder are mixed and ground in a mixer (with balls) for 12-48 hours to obtain powder.
(2) Loading the powder into steel mould, pressing at 4-5 ton/cm2Pressing under pressure, and demolding to obtain green compact; sintering the qualified pressed compact in a continuous sintering furnace at a heating rate of 50-100 ℃/h and a sintering temperature of 550-2And (6) protecting.
(3) And obtaining the zinc-iron-ferrite friction plate after sintering.
1. And (5) product detection.
The zinc iron-ferrite friction plate, namely the friction thin layer plate, is adhered to the surface layer of a conventional brake pad and is compounded into a whole, namely a back plate, a heat insulation layer and the friction plate. The performance detection data of the brake pad are as follows: the friction coefficient is 0.4, the wear rate is about 0.6 percent, the hardness is HB3.5, the heat fading phenomenon is avoided below 350 ℃, and the wear resistance meets the use requirement. The test report of the brake pad under different pressures is shown in fig. 3.
2. And (5) carrying out actual loading operation test.
The actual loading operation (Toyota Ka roller) product has no noise, the brake is sensitive and stable (compared with the original brake pad, the brake pad is obviously sensitive), the abrasion is lower than that of the original brake pad, and the brake disc is not scratched or seriously abraded.
Claims (10)
1. The iron oxide environment-friendly material is characterized by comprising the following raw materials in parts by weight: 35-45 parts of ferrite, 30-45 parts of iron powder, 10-20 parts of steel wool and 20-30 parts of zinc powder.
2. The iron oxide environment-friendly material as claimed in claim 1, wherein the ferrite is strontium ferrite and has a particle size of 40 μm.
3. The environment-friendly iron oxide material as claimed in claim 1, wherein the iron powder is pure iron powder with a particle size of 120 mesh.
4. The iron oxide environment-friendly material as claimed in claim 1, wherein the steel wool is D1-80 or D0-160。
5. The environment-friendly iron oxide material as claimed in claim 1, wherein the zinc powder has a particle size of 120 meshes.
6. Use of the iron oxide environment-friendly material as defined in claim 1 for preparing a powder metallurgy friction material.
7. Use of the iron oxide environment-friendly material as defined in claim 1 in the preparation of an automobile brake pad.
8. The method for preparing a friction plate made of the iron oxide environment-friendly material according to claim 1, which comprises the following steps:
(1) adding ferrite, iron powder, steel wool and zinc powder in the raw materials into a mixer, ball-mixing and grinding for 12-48 hours to obtain powder;
(2) pressing and molding the powder in a steel die, and then sintering;
(3) and obtaining the friction plate after sintering.
9. A method of making a friction plate as described in claim 8 wherein said pressing is at a pressure of 4 to 5 tons/cm2(ii) a The sintering temperature is 550-900 ℃; the sintering time is 3-4 h; introducing N in the sintering process2Protection; the heating rate in the sintering process is 50-100 ℃/h.
10. A method of manufacturing a friction plate as described in claim 8 wherein said friction plate is formed as a brake pad by sequentially combining with a thermal insulating layer and a backing plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011423859.5A CN112538588B (en) | 2020-12-08 | 2020-12-08 | Iron oxide environment-friendly material and preparation method and application thereof |
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| CN202011423859.5A CN112538588B (en) | 2020-12-08 | 2020-12-08 | Iron oxide environment-friendly material and preparation method and application thereof |
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| CN112538588B true CN112538588B (en) | 2022-06-03 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008025018A (en) * | 2006-06-22 | 2008-02-07 | Akebono Brake Ind Co Ltd | Sintering friction material |
| CN104110454B (en) * | 2014-05-04 | 2018-01-30 | 中国矿业大学 | A kind of automobile Hard Magnetic brake slice prescription and preparation method thereof |
| CN105927686A (en) * | 2016-04-18 | 2016-09-07 | 房建虹 | Friction material of high-speed train brake pad and preparation method |
| JP6893040B2 (en) * | 2016-12-12 | 2021-06-23 | パウダーテック株式会社 | Iron oxide powder for brake friction material |
| CN108300412A (en) * | 2018-01-12 | 2018-07-20 | 青岛盛博机电有限公司 | A kind of high-carbon eco-friendly car friction material and preparation method thereof |
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