CN114962510A - Drum type friction plate and preparation method thereof - Google Patents
Drum type friction plate and preparation method thereof Download PDFInfo
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- CN114962510A CN114962510A CN202210636736.2A CN202210636736A CN114962510A CN 114962510 A CN114962510 A CN 114962510A CN 202210636736 A CN202210636736 A CN 202210636736A CN 114962510 A CN114962510 A CN 114962510A
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- 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—Compositions of linings; Methods of manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- 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—Compositions of linings; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
- F16D69/028—Compositions based on metals or inorganic oxides containing fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
- F16D2200/0008—Ferro
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- 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
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- 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
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0052—Carbon
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- 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
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0056—Elastomers
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- 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
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
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- 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
- F16D2200/0086—Moulding materials together by application of heat and pressure
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- 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
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0023—Shaping by pressure
Abstract
The invention discloses a drum type friction plate and a preparation method thereof, and relates to the technical field of drum type friction plates. According to the drum-type friction plate and the preparation method thereof, the wear resistance coefficient of the prepared friction plate is increased, the strength is improved, the friction plate has good acid and alkali resistance by adding the iron oxide yellow and the red copper fiber, the friction plate can adapt to different environments for use, and the service life of the friction plate can be prolonged.
Description
Technical Field
The invention relates to the technical field of drum type friction plates, in particular to a drum type friction plate and a preparation method thereof.
Background
With the improvement of automobile science and technology, the improvement of the requirement of a user on maintenance convenience and the requirement of laws and regulations on friction plate abrasion alarming, the drum brake friction plate abrasion alarming device is increasingly used on automobiles.
However, the drum type friction plate on the current automobile is easy to damage after being used for a long time, and the strength is low, so that the service life is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a drum type friction plate and a preparation method thereof, and solves the problems that the friction plate is easy to damage and low in strength after the drum type friction plate on the existing automobile is used for a long time, so that the service life of the drum type friction plate is reduced.
In order to achieve the purpose, the invention is realized by the following technical scheme: a drum friction plate, said friction plate comprising a composition comprising: the resin, calcium sulfate whisker, aramid fiber, needle-shaped silicon gray cotton, magnetite powder, sericite, friction powder, brown corundum, antimony sulfide, white carbon black, iron oxide yellow, butyronitrile powder, white vermiculite powder, artificial graphite powder, heavy calcium carbonate, red copper fiber and barite powder are prepared from the following components: 8-10 parts of resin, 10-13 parts of calcium sulfate whisker, 1-2 parts of aramid fiber, 4-7 parts of needle-shaped silicon gray cotton, 4-6 parts of magnetite powder, 2-5 parts of sericite, 0.8-1.2 parts of friction powder, 0.3-0.5 part of brown corundum, 0.2-0.6 part of antimony sulfide, 2-5 parts of white carbon black, 2-5 parts of iron oxide yellow, 3-6 parts of butyronitrile powder, 2-6 parts of white vermiculite powder, 2-3 parts of artificial graphite powder, 2-4 parts of heavy calcium carbonate, 9-11 parts of red copper fiber and 24-28 parts of barite powder.
Further, the friction plate is prepared from the following specific components: 8 parts of resin, 10 parts of calcium sulfate whisker, 1 part of aramid fiber, 4 parts of needle-shaped silicon gray cotton, 4 parts of magnetite powder, 2 parts of sericite, 0.8 part of friction powder, 0.3 part of brown fused alumina, 0.2 part of antimony sulfide, 2 parts of white carbon black, 2 parts of iron oxide yellow, 3 parts of butyronitrile powder, 2 parts of white vermiculite powder, 2 parts of artificial stone ink powder, 2 parts of heavy calcium carbonate, 9 parts of red copper fiber and 24 parts of barite powder.
Further, the friction plate is prepared from the following specific components: 10 parts of resin, 13 parts of calcium sulfate whisker, 2 parts of aramid fiber, 7 parts of needle-shaped silicon gray cotton, 6 parts of magnetite powder, 5 parts of sericite, 1.2 parts of friction powder, 0.5 part of brown fused alumina, 0.6 part of antimony sulfide, 5 parts of white carbon black, 5 parts of iron oxide yellow, 6 parts of butyronitrile powder, 6 parts of white vermiculite powder, 3 parts of artificial stone ink powder, 4 parts of heavy calcium carbonate, 11 parts of red copper fiber and 28 parts of barite powder.
Further, the friction plate is prepared from the following specific components: 9 parts of resin, 11 parts of calcium sulfate whisker, 2 parts of aramid fiber, 5 parts of needle-shaped silicon gray cotton, 5 parts of magnetite powder, 3 parts of sericite, 1 part of friction powder, 0.4 part of brown corundum, 0.4 part of antimony sulfide, 3 parts of white carbon black, 3 parts of iron oxide yellow, 4 parts of butyronitrile powder, 4 parts of white vermiculite powder, 3 parts of artificial graphite powder, 3 parts of heavy calcium carbonate, 10 parts of red copper fiber and 26 parts of barite powder.
Further, the preparation method of the drum type friction plate comprises the following steps:
s1, mixing the raw materials: putting the ingredients on a screening machine, screening out powder with the fineness of 15-20 um, putting the powder into a mixing machine, and mixing to obtain a friction material;
s2, hot press forming: putting the friction material and the brake back plate into a hot press for pressing to obtain a semi-finished product;
s3, heat treatment: putting the semi-finished product subjected to hot press molding into a heat treatment box, filling helium into the heat treatment box, and performing heat treatment on the semi-finished product;
s4, grinding and drilling: putting the semi-finished product after heat treatment on a machine tool, and grinding and drilling the semi-finished product to a standard size;
s5, printing and packaging: and marking and printing the finished friction plate after processing, and then storing the finished friction plate in a warehouse in a sealed mode.
Further, in the step S1, when the ingredients are mixed, the mixing time is 11-15 min, the mixing temperature is 55-66 ℃, and the ingredients are stirred while being mixed, with the stirring speed being 52-58/min.
Further, in the step S2, a three-stage hot pressing method is adopted for hot press forming, the first stage is hot pressed at a pressure value of 8-12 MPa for 3-6 min at a pressing temperature of 88-120 ℃, the second stage is hot pressed at a pressure value of 14-18 MPa for 5-8 min at a pressing temperature of 110-138 ℃, and the third stage is hot pressed at a pressure value of 21-28 MPa for 5-10 min at a pressing temperature of 128-162 ℃.
Further, in the step S3, when the semi-finished product is subjected to heat treatment, the semi-finished product is preheated at 55-72 ℃ for 25-50 min, then is subjected to heat treatment at 110-140 ℃ for 1-2 h, is subjected to heat treatment at 158-178 ℃ for 4-5 h, is subjected to heat preservation at 77-95 ℃ for 35-45 min, and is cooled to room temperature after heat preservation.
Advantageous effects
The invention provides a drum type friction plate and a preparation method thereof, and compared with the prior art, the drum type friction plate has the following beneficial effects:
1. according to the drum-type friction plate and the preparation method thereof, the wear resistance coefficient of the prepared friction plate is increased, the strength is improved, the friction plate has good acid and alkali resistance by adding the iron oxide yellow and the red copper fiber, the friction plate can adapt to different environments for use, and the service life of the friction plate can be prolonged.
2. According to the drum type friction plate and the preparation method thereof, in hot press forming, the prepared friction plate is not easy to crack by adopting a three-section hot pressing method, so that the molecular connection between the friction plates is tighter, in the heat treatment, the friction plate is preheated for 25min at the temperature of 55 ℃, then is subjected to heat treatment for 1h at the temperature of 110 ℃, then is subjected to heat treatment for 4h at the temperature of 158 ℃, finally is subjected to heat preservation for 35min at the temperature of 77 ℃, is cooled to room temperature after the heat preservation is finished, and is subjected to heat treatment in a segmented mode, so that the heat treatment effect of the friction plate is improved, and further, the strength and the wear resistance of the friction plate after the heat treatment are ensured.
Drawings
FIG. 1 is a flow chart of the preparation of the present invention.
9 parts of resin, 11 parts of calcium sulfate whisker, 2 parts of aramid fiber, 5 parts of needle-shaped silicon gray cotton, 5 parts of magnetite powder, 3 parts of sericite, 1 part of friction powder, 0.4 part of brown corundum, 0.4 part of antimony sulfide, 3 parts of white carbon black, 3 parts of iron oxide yellow, 4 parts of butyronitrile powder, 4 parts of white vermiculite powder, 3 parts of artificial graphite powder, 3 parts of heavy calcium carbonate, 10 parts of red copper fiber and 26 parts of barite powder
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides three technical solutions:
example one
A drum friction plate, the friction plate comprising: the resin, calcium sulfate whisker, aramid fiber, needle-shaped silicon gray cotton, magnetite powder, sericite, friction powder, brown corundum, antimony sulfide, white carbon black, iron oxide yellow, butyronitrile powder, white vermiculite powder, artificial graphite powder, heavy calcium carbonate, red copper fiber and barite powder are prepared from the following components: 10 parts of resin, 13 parts of calcium sulfate whisker, 2 parts of aramid fiber, 7 parts of needle-shaped silicon gray cotton, 6 parts of magnetite powder, 5 parts of sericite, 1.2 parts of friction powder, 0.5 part of brown fused alumina, 0.6 part of antimony sulfide, 5 parts of white carbon black, 5 parts of iron oxide yellow, 6 parts of butyronitrile powder, 6 parts of white vermiculite powder, 3 parts of artificial stone ink powder, 4 parts of heavy calcium carbonate, 11 parts of red copper fiber and 28 parts of barite powder.
In the embodiment of the invention, the preparation method of the drum type friction plate comprises the following steps:
s1, mixing the raw materials: putting the ingredients on a screening machine, screening out powder with the fineness of 20um, then putting the powder into a mixing machine, and mixing to obtain a friction material;
s2, hot press forming: putting the friction material and the brake back plate into a hot press for pressing to obtain a semi-finished product;
s3, heat treatment: putting the semi-finished product subjected to hot press molding into a heat treatment box, filling helium into the heat treatment box, and performing heat treatment on the semi-finished product;
s4, grinding and drilling: putting the semi-finished product after heat treatment on a machine tool, and grinding and drilling the semi-finished product to a standard size;
s5, printing and packaging: and marking and printing the finished friction plate after processing, and then storing the finished friction plate in a warehouse in a sealed mode.
In the embodiment of the invention, in the step S1, when the ingredients are mixed, the mixing time is 15min, the mixing temperature is 66 ℃, and the ingredients are stirred while being mixed, with the stirring speed being 58/min.
In the embodiment of the invention, in the step S2, the hot press forming adopts a three-stage hot press method, the first stage is hot pressed at a pressure value of 12MPa for 6min at a pressing temperature of 120 ℃, the second stage is hot pressed at a pressure value of 18MPa for 8min at a pressing temperature of 138 ℃, and the third stage is hot pressed at a pressure value of 28MPa for 10min at a pressing temperature of 162 ℃.
In the embodiment of the invention, in the step S3, when the semi-finished product is subjected to the heat treatment, the semi-finished product is preheated at the temperature of 72 ℃ for 50min, then is subjected to the heat treatment at the temperature of 140 ℃ for 2h, then is subjected to the heat treatment at the temperature of 178 ℃ for 5h, and finally is subjected to the heat preservation at the temperature of 95 ℃ for 45min, and is cooled to the room temperature after the heat preservation is finished.
Example two
A drum friction plate, the friction plate comprising: the resin, calcium sulfate whisker, aramid fiber, needle-shaped silicon gray cotton, magnetite powder, sericite, friction powder, brown corundum, antimony sulfide, white carbon black, iron oxide yellow, butyronitrile powder, white vermiculite powder, artificial graphite powder, heavy calcium carbonate, red copper fiber and barite powder are prepared from the following components: 9 parts of resin, 11 parts of calcium sulfate whisker, 2 parts of aramid fiber, 5 parts of needle-shaped silicon gray cotton, 5 parts of magnetite powder, 3 parts of sericite, 1 part of friction powder, 0.4 part of brown corundum, 0.4 part of antimony sulfide, 3 parts of white carbon black, 3 parts of iron oxide yellow, 4 parts of butyronitrile powder, 4 parts of white vermiculite powder, 3 parts of artificial graphite powder, 3 parts of heavy calcium carbonate, 10 parts of red copper fiber and 26 parts of barite powder.
In the embodiment of the invention, the preparation method of the drum type friction plate comprises the following steps:
s1, mixing the raw materials: putting the ingredients on a screening machine, screening out powder with the fineness of 17um, then putting the powder into a mixing machine, and mixing to obtain a friction material;
s2, hot press forming: putting the friction material and the brake back plate into a hot press for pressing to obtain a semi-finished product;
s3, heat treatment: putting the semi-finished product subjected to hot press molding into a heat treatment box, filling helium into the heat treatment box, and performing heat treatment on the semi-finished product;
s4, grinding and drilling: putting the semi-finished product after heat treatment on a machine tool, and grinding and drilling the semi-finished product to a standard size;
s5, printing and packaging: and marking and printing the finished friction plate after processing, and then storing the finished friction plate in a warehouse in a sealed mode.
In the embodiment of the invention, in the step S1, when the ingredients are mixed, the mixing time is 13min, the mixing temperature is 61 ℃, and the ingredients are stirred while being mixed, wherein the stirring speed is 55/min.
In the embodiment of the invention, in the step S2, the hot press forming adopts a three-stage hot press method, the first stage is hot pressed at a pressure value of 11MPa for 4min at a pressing temperature of 98 ℃, the second stage is hot pressed at a pressure value of 16MPa for 6min at a pressing temperature of 125 ℃, and the third stage is hot pressed at a pressure value of 25MPa for 7min at a pressing temperature of 144 ℃.
In the embodiment of the invention, in the step S3, when the semi-finished product is subjected to the heat treatment, the semi-finished product is preheated at 63 ℃ for 38min, then is subjected to the heat treatment at 129 ℃ for 2h, then is subjected to the heat treatment at 167 ℃ for 4h, and finally is subjected to heat preservation at 86 ℃ for 39min, and is cooled to room temperature after the heat preservation is finished.
EXAMPLE III
A drum friction plate, the friction plate comprising: the resin, calcium sulfate whisker, aramid fiber, needle-shaped silicon gray cotton, magnetite powder, sericite, friction powder, brown corundum, antimony sulfide, white carbon black, iron oxide yellow, butyronitrile powder, white vermiculite powder, artificial graphite powder, heavy calcium carbonate, red copper fiber and barite powder are prepared from the following components: 8 parts of resin, 10 parts of calcium sulfate whisker, 1 part of aramid fiber, 4 parts of needle-shaped silicon gray cotton, 4 parts of magnetite powder, 2 parts of sericite, 0.8 part of friction powder, 0.3 part of brown fused alumina, 0.2 part of antimony sulfide, 2 parts of white carbon black, 2 parts of iron oxide yellow, 3 parts of butyronitrile powder, 2 parts of white vermiculite powder, 2 parts of artificial stone ink powder, 2 parts of heavy calcium carbonate, 9 parts of red copper fiber and 24 parts of barite powder.
In the embodiment of the invention, the preparation method of the drum type friction plate comprises the following steps:
s1, mixing the raw materials: putting the ingredients on a screening machine, screening out powder with the fineness of 15um, then putting the powder into a mixing machine, and mixing to obtain a friction material;
s2, hot press forming: putting the friction material and the brake back plate into a hot press for pressing to obtain a semi-finished product;
s3, heat treatment: putting the semi-finished product subjected to hot press molding into a heat treatment box, filling helium into the heat treatment box, and performing heat treatment on the semi-finished product;
s4, grinding and drilling: putting the semi-finished product after heat treatment on a machine tool, and grinding and drilling the semi-finished product to a standard size;
s5, printing and packaging: and marking and printing the finished friction plate after processing, and then storing the finished friction plate in a warehouse in a sealed mode.
In the embodiment of the invention, in the step S1, when the ingredients are mixed, the mixing time is 11min, the mixing temperature is 55 ℃, and the ingredients are stirred while being mixed, with the stirring speed being 52/min.
In the embodiment of the invention, in the step S2, the hot press forming adopts a three-stage hot press method, the first stage is hot pressed at a pressure value of 8MPa for 3min at 88 ℃, the second stage is hot pressed at a pressure value of 14MPa for 5min at 110 ℃, and the third stage is hot pressed at a pressure value of 21MPa for 5min at 128 ℃.
In the embodiment of the invention, in the step S3, when the semi-finished product is subjected to the heat treatment, the semi-finished product is preheated at 55 ℃ for 25min, then is subjected to the heat treatment at 110 ℃ for 1h, then is subjected to the heat treatment at 158 ℃ for 4h, and finally is subjected to heat preservation at 77 ℃ for 35min, and is cooled to room temperature after the heat preservation is finished.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (8)
1. A drum friction disc which characterized in that: the friction plate comprises the following components: the resin, calcium sulfate whisker, aramid fiber, needle-shaped silicon gray cotton, magnetite powder, sericite, friction powder, brown corundum, antimony sulfide, white carbon black, iron oxide yellow, butyronitrile powder, white vermiculite powder, artificial graphite powder, heavy calcium carbonate, red copper fiber and barite powder are prepared from the following components: 8-10 parts of resin, 10-13 parts of calcium sulfate whisker, 1-2 parts of aramid fiber, 4-7 parts of needle-shaped silicon gray cotton, 4-6 parts of magnetite powder, 2-5 parts of sericite, 0.8-1.2 parts of friction powder, 0.3-0.5 part of brown corundum, 0.2-0.6 part of antimony sulfide, 2-5 parts of white carbon black, 2-5 parts of iron oxide yellow, 3-6 parts of butyronitrile powder, 2-6 parts of white vermiculite powder, 2-3 parts of artificial graphite powder, 2-4 parts of heavy calcium carbonate, 9-11 parts of red copper fiber and 24-28 parts of barite powder.
2. A drum friction plate according to claim 1, wherein: the friction plate is prepared from the following specific components: 8 parts of resin, 10 parts of calcium sulfate whisker, 1 part of aramid fiber, 4 parts of needle-shaped silicon gray cotton, 4 parts of magnetite powder, 2 parts of sericite, 0.8 part of friction powder, 0.3 part of brown fused alumina, 0.2 part of antimony sulfide, 2 parts of white carbon black, 2 parts of iron oxide yellow, 3 parts of butyronitrile powder, 2 parts of white vermiculite powder, 2 parts of powdered ink, 2 parts of ground limestone, 9 parts of red copper fiber and 24 parts of barite powder.
3. A drum friction plate according to claim 1, wherein: the friction plate is prepared from the following specific components: 10 parts of resin, 13 parts of calcium sulfate whisker, 2 parts of aramid fiber, 7 parts of needle-shaped silicon gray cotton, 6 parts of magnetite powder, 5 parts of sericite, 1.2 parts of friction powder, 0.5 part of brown fused alumina, 0.6 part of antimony sulfide, 5 parts of white carbon black, 5 parts of iron oxide yellow, 6 parts of butyronitrile powder, 6 parts of white vermiculite powder, 3 parts of artificial stone ink powder, 4 parts of heavy calcium carbonate, 11 parts of red copper fiber and 28 parts of barite powder.
4. A drum friction plate according to claim 1, wherein: the friction plate is prepared from the following specific components: 9 parts of resin, 11 parts of calcium sulfate whisker, 2 parts of aramid fiber, 5 parts of needle-shaped silicon gray cotton, 5 parts of magnetite powder, 3 parts of sericite, 1 part of friction powder, 0.4 part of brown corundum, 0.4 part of antimony sulfide, 3 parts of white carbon black, 3 parts of iron oxide yellow, 4 parts of butyronitrile powder, 4 parts of white vermiculite powder, 3 parts of artificial graphite powder, 3 parts of heavy calcium carbonate, 10 parts of red copper fiber and 26 parts of barite powder.
5. A preparation method of a drum type friction plate is characterized by comprising the following steps: a drum friction plate comprising any one of claims 1 to 4, and a method of making the same comprising the steps of:
s1, mixing the raw materials: putting the ingredients on a screening machine, screening out powder with the fineness of 15-20 um, putting the powder into a mixing machine, and mixing to obtain a friction material;
s2, hot press forming: putting the friction material and the brake back plate into a hot press for pressing to obtain a semi-finished product;
s3, heat treatment: putting the semi-finished product subjected to hot press molding into a heat treatment box, filling helium into the heat treatment box, and performing heat treatment on the semi-finished product;
s4, grinding and drilling: putting the semi-finished product after heat treatment on a machine tool, and grinding and drilling the semi-finished product to a standard size;
s5, printing and packaging: and marking and printing finished friction plates after processing, and then storing the finished friction plates in a warehouse in a sealed manner.
6. The method of manufacturing a drum friction plate according to claim 5, wherein: in the step S1, when the ingredients are mixed, the mixing time is 11-15 min, the mixing temperature is 55-66 ℃, and the ingredients are stirred while being mixed, wherein the stirring speed is 52-58/min.
7. The method of manufacturing a drum friction plate according to claim 5, wherein: in the step S2, a three-stage hot pressing method is adopted for hot pressing forming, the first stage is used for hot pressing at a pressure value of 8-12 MPa for 3-6 min at a pressing temperature of 88-120 ℃, the second stage is used for hot pressing at a pressure value of 14-18 MPa for 5-8 min at a pressing temperature of 110-138 ℃, and the third stage is used for hot pressing at a pressure value of 21-28 MPa for 5-10 min at a pressing temperature of 128-162 ℃.
8. The method of manufacturing a drum friction plate according to claim 5, wherein: in the step S3, when the semi-finished product is subjected to heat treatment, the semi-finished product is preheated at the temperature of 55-72 ℃ for 25-50 min, then is subjected to heat treatment at the temperature of 110-140 ℃ for 1-2 h, is subjected to heat treatment at the temperature of 158-178 ℃ for 4-5 h, is subjected to heat preservation at the temperature of 77-95 ℃ for 35-45 min, and is cooled to room temperature after the heat preservation is finished.
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