CN105240429A - Vanadium-contained semimetallic brake block - Google Patents
Vanadium-contained semimetallic brake block Download PDFInfo
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- CN105240429A CN105240429A CN201510704138.4A CN201510704138A CN105240429A CN 105240429 A CN105240429 A CN 105240429A CN 201510704138 A CN201510704138 A CN 201510704138A CN 105240429 A CN105240429 A CN 105240429A
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Abstract
The invention discloses a vanadium-contained semimetallic brake block. The vanadium-contained semimetallic brake block includes, by weight, 5-7 parts of red copper fibers, 3-6 parts of potassium hexatitanate whiskers, 4-5 parts of barium sulfate, 15-25 parts of ferrovanadium powder, 4-6 parts of frictional powder, 13-15 parts of short stainless steel fibers, 6-10 parts of graphite, 2-4 parts of cellulosic fibers, 7-9 parts of coke blacking, 1-5 parts of modified resin nitrile fibers, 3-7 parts of chromite ore fine, 1-5 parts of nitrile rubber, 5-9 parts of ceramic adhesive agents and 8-10 parts of spray-bounded aluminum silicate fibers. The brake block obtained by material mixing, steel backing treatment, press molding, heat treatment, packaging and storage is low in wear rate, not prone to being dusty, high in density, good in heat dissipation, small in vibration, low in noise and high in corrosion resistance. The whole manufacturing process is simple, stability is good, cost is low and the cost-performance ratio is high.
Description
Technical field
The present invention relates to a kind of brake block, particularly a kind of containing vanadium semipermanent mold brake block.
Background technique
Braking system is one of most important safety system on automobile, and brake block has suffered parts important in braking system, conventional brake block is divided into: 1, asbestos type, because asbestos fiber has high strength and resistant to elevated temperatures feature, therefore meet the requirement of brake block and clutch disk, there is the tensile energy of fiber and the hardness of advanced metal material and wear resistance, because asbestos type brake block heat-conducting property is poor simultaneously, the shortcomings such as the easy generation toxic gas harm person is healthy, have now been eliminated by China; 2, without asbestos organic type, mainly use glass fibre, aromatic polyester fiber and other fibers as reinforcement material, its performance depends primarily on type and other mixture of fiber, is one of asbestos-free friction material of mainly applying of China; 3, semipermanent mold, main adopts coarse Steel Wool as reinforced fibers and the large mixture of important friction factor, and major advantage is adapt to normally work at relatively high temperatures, one of asbestos-free friction material that Ye Shi China mainly applies.But at present, the shortcoming of semi-metallic brake pad is more and more outstanding, and as under moisture effect, corrosion is serious, during brake, noise is higher, vibrate larger, there is certain damage to brake disc, the dust that most semi-metallic brake pad in use easily produces, these dust adsorption are on wheel hub, owing to being difficult to cleaning, affect for a long time by it, easily cause wheel hub to corrode, constrain the application of semipermanent mold brake block to a great extent.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, and provide a kind of wear-resistant, density is large, corrosion-resistant, simultaneously good thermal conduction, and what noise was little contains vanadium semipermanent mold brake block.
The technical solution used in the present invention is as follows: a kind of containing vanadium semipermanent mold brake block, the described component containing vanadium semipermanent mold brake block calculates by weight and is: red copper fiber is 5 ~ 7 parts, crystal whisker of hexa potassium titanate 3 ~ 6 parts, 4 ~ 5 parts, barium sulphate, vanadium iron powder 15 ~ 25 parts, Frication powder 4 ~ 6 parts, stainless steel short fiber 13 ~ 15 parts, 6 ~ 10 parts, graphite, cellulose fiber 2 ~ 4 parts, coke powder 7 ~ 9 parts, modified resin nitrile fiber 1 ~ 5 part, chromite powder 3 ~ 7 parts, nitrile butadiene rubber 1 ~ 5 part, vitrified bond 5 ~ 9 parts, glue spraying aluminum silicate fiber 8 ~ 10 parts.
Further, described Frication powder is cashew nut shell oil Frication powder, and described vitrified bond is that sulfuration is loved and respect one's elder brother and silicate, and the described vanadium iron powder trade mark is FeV40, and grain graininess grade is 3.
Further, based on above-mentioned a kind of preparation method containing vanadium semipermanent mold brake block, comprise the following steps:
Step 1, batch mixing: load weighted each material is dropped in high speed mixer and stirs, first modified resin nitrile fiber, nitrile butadiene rubber, graphite, cellulose fiber, coke, red copper fiber and crystal whisker of hexa potassium titanate are added and carry out mix and blend, mixing time is 3min, then barium sulphate, vanadium iron powder, chromite powder and vitrified bond are added and carry out uniform stirring, mixing time is 15min;
Step 2, steel backing pretreatment: first by totally clear for steel backing surface and oil contaminant, then carry out shot blast with compressed air shotblasting machine to steel backing, and the shot blast time is 15min, carries out glue spraying process again after shot-peening terminates to steel backing;
Step 3, compressing: the batch mixing after being stirred and steel backing to be put into shaping grinding apparatus compressing, pressing pressure is 30MPa, hot pressing temperature is 145 ~ 155 DEG C, in pressing process, be vented 4 ~ 5 times, after compressing, then pressurize number minute, the dwell time is determined according to 0.5min/mm according to the thickness of brake block;
Step 4, heat treatment: the brake block after compressing is put into heat treatment furnace and is heated to 150 DEG C, be incubated 2 hours, continue to be warming up to 180 DEG C, be incubated 2 ~ 4 hours, then be warming up to 220 DEG C, be incubated 2 ~ 4 hours, finally cool to room temperature with the furnace;
Step 5, packaging warehouse-in: the brake block after heat treatment is complete carries out grinding and cutting, then sprays paint, baking vanish, afterwards installation accessories again, finally checks finished product, qualified rear packaging is put in storage.
The present invention also comprises a kind of preparation method containing vanadium semipermanent mold brake block, comprises the following steps:
Step 1, batch mixing: load weighted each material is dropped in high speed mixer and stirs, first modified resin nitrile fiber, nitrile butadiene rubber, graphite, cellulose fiber, coke, red copper fiber and crystal whisker of hexa potassium titanate are added and carry out mix and blend, mixing time is 3min, then barium sulphate, vanadium iron powder, chromite powder and vitrified bond are added and carry out uniform stirring, mixing time is 15min;
Step 2, steel backing pretreatment: first by totally clear for steel backing surface and oil contaminant, then carry out shot blast with compressed air shotblasting machine to steel backing, and the shot blast time is 15min, carries out glue spraying process again after shot-peening terminates to steel backing;
Step 3, compressing: the batch mixing after being stirred and steel backing to be put into shaping grinding apparatus compressing, pressing pressure is 30MPa, hot pressing temperature is 150 DEG C, in pressing process, be vented 5 times, after compressing, then pressurize number minute, the dwell time is determined according to 0.5min/mm according to the thickness of brake block;
Step 4, heat treatment: the brake block after compressing is put into heat treatment furnace and is heated to 150 DEG C, be incubated 2 hours, continue to be warming up to 180 DEG C, be incubated 3 hours, then be warming up to 220 DEG C, be incubated 3 hours, finally cool to room temperature with the furnace.
Step 5, packaging warehouse-in: the brake block after heat treatment is complete carries out grinding and cutting, then sprays paint, baking vanish, afterwards installation accessories again, finally checks finished product, qualified rear packaging is put in storage;
What obtain based on above-mentioned a kind of preparation method containing vanadium semipermanent mold brake block contains vanadium semipermanent mold brake block, and its component calculates by weight and is: red copper fiber is 5 parts, crystal whisker of hexa potassium titanate 3.5 parts, 4.3 parts, barium sulphate, vanadium iron powder 25 parts, Frication powder 6 parts, stainless steel short fiber 13 parts, 6.3 parts, graphite, cellulose fiber 3.1 parts, coke powder 8 parts, modified resin nitrile fiber 2.7 parts, chromite powder 4.5 parts, nitrile butadiene rubber 3.2 parts, vitrified bond 6.2 parts, glue spraying aluminum silicate fiber 9.2 parts.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, wear rate is little, not easily produces dust, and brake block is more durable.
In the present invention, creationaryly add in brake block by vanadium iron powder, the physical property of vanadium iron powder is similar to magnetite, has higher hardness, and chemical stability is strong, can increase rubbing of brake block and examine coefficient, in addition, when brake block is due at a high speed large dynamic braking, high temperature can be produced at friction surface, temperature can reach 800 ~ 900 DEG C, at these elevated temperatures, metal-ceramic ag reaction can be there is in disc surface, vanadium at high temperature will with carbon generation carbonation, generate vanadium carbide, vanadium carbide fusing point is high, chemical stability is good, it is the raw material manufacturing ceramet and heat resisting alloy, vanadium carbide can improve its wear resistance in brake block, corrosion resistance, the combination property such as toughness and fatigue resistance, brake block is had at this temperature and still can have good stability, it is a kind of outstanding friction material additive, crystal whisker of hexa potassium titanate belongs to high-quality friction material, there is unique chemical stability, mechanical property and heat-shielding performance, and high infrared reflection, high temperature sound-absorbing, with the feature such as the intermiscibility of organic or inorganic thing is good, promote the combination property of brake block on the whole, brake block wear rate is reduced, by adopting steel fiber and non-metallic fiber as matrix, bond as consolidation with vitrified bond, the powdered materials difficult drop-off in compressing brake block is worn and torn, and this just reduce further the wear rate of brake block again, make it not easily to produce dust, brake block is more durable through grinding.
2, brake block density is large, and thermal diffusivity is good, and vibrate less, noise is little.
In the present invention, during graphite is used as, low temperature lubricant, there is good stickability, moldability, can help to form transfer membrane, improve greasy property, greatly reduce the loss to brake disc, relax frictional force, also there is high temperature resistance, thermal conductivity and oxidative stability simultaneously, thermal expansion coefficient is low, thermal diffusivity is good, stable chemical nature, effectively can reduce the noise in brake process; Coke can stablize frictional force in brake block, rubbing surface can not be injured, improve the working life of brake block, meanwhile, the porosity ratio of brake block inside can also be improved thus reduce vibration and noise, improve thermal diffusivity, in addition, graphite and coke at high temperature interact with vanadium, can maximize and give play to respective advantage, significantly improve every characteristic of brake block, significantly reduce the intrinsic defect of semipermanent mold brake block; The red copper length of staple that the present invention adopts is 3 ~ 4mm, and it can improve high temperature friction coefficient, controls heat fade, brake block can be dispelled the heat as early as possible, and controls high temperature and to rub an ancient egg-shaped, holed wind instrument, has good heat dispersion; Glue spraying aluminum silicate fiber well can absorb the noise that friction material sends because of braking, there is good resistance to high temperature, extremely low thermal conductivity, it invests friction material surface can effectively reduce the character of heat-fading and expansibility of touching other cryogenic materials in material, improves friction material in the stability manufactured and in using process.
3, corrosion resistance is strong, even if produce dust also can not corrode wheel hub.
In the present invention, also be added with stainless steel short fiber, Stainless Steel Fibre, as a kind of friction material, not only has high connductivity, high heat conduction, high strength, the performance such as high temperature resistant, corrosion-resistant, also has the characteristic of chemical fibre, synthetic fiber, the matrix that stainless steel short fiber adheres to as powder, can guarantee that matrix can not be corroded, ensure that powder not easily drops further, simultaneously, playing amount of deformation under the working environment of quick-cooling and quick-warming minimum, is 2 ~ 3 times of other Steel Fibres; The chromite powder added can improve the hardness of brake block further, its wear resistance of further raising and stability, chromium element in ferrochrome can also significantly improve the corrosion resistance of brake block, make brake block also can keep good corrosion resistance under complex environment, chromite powder and vanadium iron powder, graphite, coke and Stainless Steel Fibre interact, significantly improve the corrosion resistance of brake block, extend Security and the working life of brake block, even if the dust produced is attached on wheel hub, also can not corrode wheel hub, eliminate the pollution to wheel hub.
4, manufacturing process is simple, and good stability, cost is low.
Brake block of the present invention is based in original technique, and by adjust and the process data changed in preparation process produces, without special fabrication processes, manufacturing process is simple, strong adaptability; Be added with barium sulphate in brake block, barium sulphate this hardness of rubbing is higher, can improve the wear resistance of brake block, the mechanical properties such as the physical hardness of brake block can also be improved, good dispersion, can make plastic grain more dispersed, makes brake block physics and chemistry character more stable; The Frication powder of adding mainly regulates thermal stability and its working stability of brake block; The modified resin added is heat fade performance, restorability, polishing machine and mechanical property in order to change brake block, makes it stability better, turn eliminates the shortcoming of resin resistance to high temperature difference simultaneously; Nitrile butadiene rubber oil resistance is fabulous, and better, bonding force is strong for wear resistance and heat resistance, it is a kind of well high-abrasive material additive, the oil resistance of brake block being significantly improved, making brake block also can stablize its performance when being polluted by the oil, the molten oil substances in brake block is not easily dissolved by oil.The constituent of brake block is all can be gently facile, and with low cost, and whole production process is simple, obtains being better than existing common semipermanent mold brake block containing vanadium brake block combination property, and cost performance is high, easily promotes the use of.
Embodiment
Following non-limiting examples is for illustration of the present invention.
embodiment one
A kind of containing vanadium semipermanent mold brake block, its component calculates by weight and is: red copper fiber is 7 parts, crystal whisker of hexa potassium titanate 3 parts, 5 parts, barium sulphate, vanadium iron powder 23 parts, Frication powder 4 parts, stainless steel short fiber 15 parts, 6 parts, graphite, cellulose fiber 4 parts, coke powder 9 parts, modified resin nitrile fiber 1 part, chromite powder 3 parts, nitrile butadiene rubber 5 parts, vitrified bond 5 parts, glue spraying aluminum silicate fiber 10 parts.Frication powder adopts cashew nut shell oil Frication powder, and vitrified bond adopts sulfuration to love and respect one's elder brother and silicate, and the vanadium iron powder trade mark is FeV40, and grain graininess grade is 3.
Above-mentioned obtained by following steps containing vanadium semipermanent mold brake block:
Step 1, batch mixing: load weighted each material is dropped in high speed mixer and stirs, first modified resin nitrile fiber, nitrile butadiene rubber, graphite, cellulose fiber, coke, red copper fiber and crystal whisker of hexa potassium titanate are added and carry out mix and blend, mixing time is 3min, then barium sulphate, vanadium iron powder, chromite powder and vitrified bond are added and carry out uniform stirring, mixing time is 15min;
Step 2, steel backing pretreatment: first by totally clear for steel backing surface and oil contaminant, then carry out shot blast with compressed air shotblasting machine to steel backing, and the shot blast time is 15min, carries out glue spraying process again after shot-peening terminates to steel backing;
Step 3, compressing: the batch mixing after being stirred and steel backing to be put into shaping grinding apparatus compressing, pressing pressure is 30MPa, hot pressing temperature is 145 ~ 155 DEG C, in pressing process, be vented 4 ~ 5 times, after compressing, then pressurize number minute, the dwell time is determined according to 0.5min/mm according to the thickness of brake block;
Step 4, heat treatment: the brake block after compressing is put into heat treatment furnace and is heated to 150 DEG C, be incubated 2 hours, continue to be warming up to 180 DEG C, be incubated 2 ~ 4 hours, then be warming up to 220 DEG C, be incubated 2 ~ 4 hours, finally cool to room temperature with the furnace;
Step 5, packaging warehouse-in: the brake block after heat treatment is complete carries out grinding and cutting, then sprays paint, baking vanish, afterwards installation accessories again, finally checks finished product, qualified rear packaging is put in storage.
Test above-mentioned obtained brake block and analyze, the experimental result obtained as shown in Table 1 and Table 2.
The check test of table 1 brake block constant speed
Table 2 brake block character of heat-fading and stability test
Result shows, brake block wear rate of the present invention is less, and wear extent is 0.34mm, friction factor between 0.40 ~ 0.47, disc surface complete, less fall ash, without turned-down edge, flawless, braking moment is comparatively large, stationarity is higher, without obviously decline, main performance is excellent.Meanwhile, because of containing the element such as chromium and vanadium, its corrosion resistance, oil resistance, hardness significantly improves, good combination property.
embodiment two
A kind of containing vanadium semipermanent mold brake block, its component calculates by weight and is: red copper fiber is 6.5 parts, crystal whisker of hexa potassium titanate 6 parts, 4 parts, barium sulphate, vanadium iron powder 15 parts, Frication powder 5 parts, stainless steel short fiber 14.5 parts, 10 parts, graphite, cellulose fiber 2 parts, coke powder 7 parts, modified resin nitrile fiber 5 parts, chromite powder 7 parts, nitrile butadiene rubber 1 part, vitrified bond 9 parts, glue spraying aluminum silicate fiber 8 parts.Frication powder adopts cashew nut shell oil Frication powder, and vitrified bond adopts sulfuration to love and respect one's elder brother and silicate, and the vanadium iron powder trade mark is FeV40, and grain graininess grade is 3.
Above-mentioned obtained by following steps containing vanadium semipermanent mold brake block:
Step 1, batch mixing: load weighted each material is dropped in high speed mixer and stirs, first modified resin nitrile fiber, nitrile butadiene rubber, graphite, cellulose fiber, coke, red copper fiber and crystal whisker of hexa potassium titanate are added and carry out mix and blend, mixing time is 3min, then barium sulphate, vanadium iron powder, chromite powder and vitrified bond are added and carry out uniform stirring, mixing time is 15min;
Step 2, steel backing pretreatment: first by totally clear for steel backing surface and oil contaminant, then carry out shot blast with compressed air shotblasting machine to steel backing, and the shot blast time is 15min, carries out glue spraying process again after shot-peening terminates to steel backing;
Step 3, compressing: the batch mixing after being stirred and steel backing to be put into shaping grinding apparatus compressing, pressing pressure is 30MPa, hot pressing temperature is 145 ~ 155 DEG C, in pressing process, be vented 4 ~ 5 times, after compressing, then pressurize number minute, the dwell time is determined according to 0.5min/mm according to the thickness of brake block;
Step 4, heat treatment: the brake block after compressing is put into heat treatment furnace and is heated to 150 DEG C, be incubated 2 hours, continue to be warming up to 180 DEG C, be incubated 2 ~ 4 hours, then be warming up to 220 DEG C, be incubated 2 ~ 4 hours, finally cool to room temperature with the furnace;
Step 5, packaging warehouse-in: the brake block after heat treatment is complete carries out grinding and cutting, then sprays paint, baking vanish, afterwards installation accessories again, finally checks finished product, qualified rear packaging is put in storage.
Test above-mentioned obtained brake block and analyze, the experimental result obtained as shown in Table 1 and Table 2.
The check test of table 1 brake block constant speed
Table 2 brake block character of heat-fading and stability test
Result shows, brake block wear rate of the present invention is less, and wear extent is 0.34mm, friction factor between 0.38 ~ 0.47, disc surface complete, less fall ash, without turned-down edge, flawless, braking moment is comparatively large, stationarity is higher, without obviously decline, main performance is excellent.Meanwhile, because of containing the element such as chromium and vanadium, its corrosion resistance, oil resistance, hardness significantly improves, good combination property.
embodiment three
A kind of containing vanadium semipermanent mold brake block, its component calculates by weight and is: red copper fiber is 5 parts, crystal whisker of hexa potassium titanate 3.5 parts, 4.3 parts, barium sulphate, vanadium iron powder 25 parts, Frication powder 6 parts, stainless steel short fiber 13 parts, 6.3 parts, graphite, cellulose fiber 3.1 parts, coke powder 8 parts, modified resin nitrile fiber 2.7 parts, chromite powder 4.5 parts, nitrile butadiene rubber 3.2 parts, vitrified bond 6.2 parts, glue spraying aluminum silicate fiber 9.2 parts.Frication powder adopts cashew nut shell oil Frication powder, and vitrified bond adopts sulfuration to love and respect one's elder brother and silicate, and the vanadium iron powder trade mark is FeV40, and grain graininess grade is 3.
Above-mentioned obtained by following steps containing vanadium semipermanent mold brake block:
Step 1, batch mixing: load weighted each material is dropped in high speed mixer and stirs, first modified resin nitrile fiber, nitrile butadiene rubber, graphite, cellulose fiber, coke, red copper fiber and crystal whisker of hexa potassium titanate are added and carry out mix and blend, mixing time is 3min, then barium sulphate, vanadium iron powder, chromite powder and vitrified bond are added and carry out uniform stirring, mixing time is 15min;
Step 2, steel backing pretreatment: first by totally clear for steel backing surface and oil contaminant, then carry out shot blast with compressed air shotblasting machine to steel backing, and the shot blast time is 15min, carries out glue spraying process again after shot-peening terminates to steel backing;
Step 3, compressing: the batch mixing after being stirred and steel backing to be put into shaping grinding apparatus compressing, pressing pressure is 30MPa, hot pressing temperature is 145 ~ 155 DEG C, in pressing process, be vented 4 ~ 5 times, after compressing, then pressurize number minute, the dwell time is determined according to 0.5min/mm according to the thickness of brake block;
Step 4, heat treatment: the brake block after compressing is put into heat treatment furnace and is heated to 150 DEG C, be incubated 2 hours, continue to be warming up to 180 DEG C, be incubated 2 ~ 4 hours, then be warming up to 220 DEG C, be incubated 2 ~ 4 hours, finally cool to room temperature with the furnace;
Step 5, packaging warehouse-in: the brake block after heat treatment is complete carries out grinding and cutting, then sprays paint, baking vanish, afterwards installation accessories again, finally checks finished product, qualified rear packaging is put in storage.
Test above-mentioned obtained brake block and analyze, the experimental result obtained as shown in Table 1 and Table 2.
The check test of table 1 brake block constant speed
Table 2 brake block character of heat-fading and stability test
Result shows, brake block wear rate of the present invention is less, and wear extent is 0.32mm, friction factor between 0.38 ~ 0.44, disc surface complete, less fall ash, without turned-down edge, flawless, braking moment is comparatively large, stationarity is higher, without obviously decline, main performance is excellent.Meanwhile, because of containing the element such as chromium and vanadium, its corrosion resistance, oil resistance, hardness significantly improves, good combination property.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1., containing a vanadium semipermanent mold brake block, the described component containing vanadium semipermanent mold brake block calculates by weight and is: red copper fiber is 5 ~ 7 parts, crystal whisker of hexa potassium titanate 3 ~ 6 parts, 4 ~ 5 parts, barium sulphate, vanadium iron powder 15 ~ 25 parts, Frication powder 4 ~ 6 parts, stainless steel short fiber 13 ~ 15 parts, 6 ~ 10 parts, graphite, cellulose fiber 2 ~ 4 parts, coke powder 7 ~ 9 parts, modified resin nitrile fiber 1 ~ 5 part, chromite powder 3 ~ 7 parts, nitrile butadiene rubber 1 ~ 5 part, vitrified bond 5 ~ 9 parts, glue spraying aluminum silicate fiber 8 ~ 10 parts.
2. as claimed in claim 1 a kind of containing vanadium semipermanent mold brake block, it is characterized in that, described Frication powder is cashew nut shell oil Frication powder, and described vitrified bond is that sulfuration is loved and respect one's elder brother and silicate, and the described vanadium iron powder trade mark is FeV40, and grain graininess grade is 3.
3., based on a kind of preparation method containing vanadium semipermanent mold brake block described in claim 1 or 2, it is characterized in that, comprise the following steps:
Step 1, batch mixing: load weighted each material is dropped in high speed mixer and stirs, first modified resin nitrile fiber, nitrile butadiene rubber, graphite, cellulose fiber, coke, red copper fiber and crystal whisker of hexa potassium titanate are added and carry out mix and blend, mixing time is 3min, then barium sulphate, vanadium iron powder, chromite powder and vitrified bond are added and carry out uniform stirring, mixing time is 15min;
Step 2, steel backing pretreatment: first by totally clear for steel backing surface and oil contaminant, then carry out shot blast with compressed air shotblasting machine to steel backing, and the shot blast time is 15min, carries out glue spraying process again after shot-peening terminates to steel backing;
Step 3, compressing: the batch mixing after being stirred and steel backing to be put into shaping grinding apparatus compressing, pressing pressure is 30MPa, hot pressing temperature is 145 ~ 155 DEG C, in pressing process, be vented 4 ~ 5 times, after compressing, then pressurize number minute, the dwell time is determined according to 0.5min/mm according to the thickness of brake block;
Step 4, heat treatment: the brake block after compressing is put into heat treatment furnace and is heated to 150 DEG C, be incubated 2 hours, continue to be warming up to 180 DEG C, be incubated 2 ~ 4 hours, then be warming up to 220 DEG C, be incubated 2 ~ 4 hours, finally cool to room temperature with the furnace;
Step 5, packaging warehouse-in: the brake block after heat treatment is complete carries out grinding and cutting, then sprays paint, baking vanish, afterwards installation accessories again, finally checks finished product, qualified rear packaging is put in storage.
4., containing a preparation method for vanadium semipermanent mold brake block, it is characterized in that, comprise the following steps:
Step 1, batch mixing: load weighted each material is dropped in high speed mixer and stirs, first modified resin nitrile fiber, nitrile butadiene rubber, graphite, cellulose fiber, coke, red copper fiber and crystal whisker of hexa potassium titanate are added and carry out mix and blend, mixing time is 3min, then barium sulphate, vanadium iron powder, chromite powder and vitrified bond are added and carry out uniform stirring, mixing time is 15min;
Step 2, steel backing pretreatment: first by totally clear for steel backing surface and oil contaminant, then carry out shot blast with compressed air shotblasting machine to steel backing, and the shot blast time is 15min, carries out glue spraying process again after shot-peening terminates to steel backing;
Step 3, compressing: the batch mixing after being stirred and steel backing to be put into shaping grinding apparatus compressing, pressing pressure is 30MPa, hot pressing temperature is 150 DEG C, in pressing process, be vented 5 times, after compressing, then pressurize number minute, the dwell time is determined according to 0.5min/mm according to the thickness of brake block;
Step 4, heat treatment: the brake block after compressing is put into heat treatment furnace and is heated to 150 DEG C, be incubated 2 hours, continue to be warming up to 180 DEG C, be incubated 3 hours, then be warming up to 220 DEG C, be incubated 3 hours, finally cool to room temperature with the furnace;
Step 5, packaging warehouse-in: the brake block after heat treatment is complete carries out grinding and cutting, then sprays paint, baking vanish, afterwards installation accessories again, finally checks finished product, qualified rear packaging is put in storage.
5. based on a kind of novel semi-metallic brake pad obtained containing the preparation method of vanadium semipermanent mold brake block according to claim 4, it is characterized in that, its component calculates by weight and is: red copper fiber is 5 parts, crystal whisker of hexa potassium titanate 3.5 parts, 4.3 parts, barium sulphate, vanadium iron powder 25 parts, Frication powder 6 parts, stainless steel short fiber 13 parts, 6.3 parts, graphite, cellulose fiber 3.1 parts, coke powder 8 parts, modified resin nitrile fiber 2.7 parts, chromite powder 4.5 parts, nitrile butadiene rubber 3.2 parts, vitrified bond 6.2 parts, glue spraying aluminum silicate fiber 9.2 parts.
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| CN105715719A (en) * | 2016-03-21 | 2016-06-29 | 北京科技大学 | High-heat-conductivity semimetal brake block |
| CN105822708A (en) * | 2016-03-29 | 2016-08-03 | 宁波市福路德汽车科技发展有限公司 | Processing technology of disc brake pad |
| CN106917837A (en) * | 2017-03-13 | 2017-07-04 | 浙江工贸职业技术学院 | A kind of semi-metallic brake pad and preparation method thereof |
| CN107314067A (en) * | 2017-07-28 | 2017-11-03 | 湖北飞龙摩擦密封材料股份有限公司 | A kind of plate friction lining and its microalloying preparation method |
| CN108071719A (en) * | 2017-11-15 | 2018-05-25 | 重庆嘉萌鸿业科技有限公司 | The formula and its preparation process of a kind of braking sheet for automobile |
| CN108443376A (en) * | 2018-03-22 | 2018-08-24 | 捷通磨擦材料（昆山）有限公司 | A kind of explosion-proof mine mechanical brake piece and preparation method thereof |
| CN110273951A (en) * | 2019-05-21 | 2019-09-24 | 中山市赛福特汽车配件有限公司 | A kind of ceramic brake and preparation method thereof |
| TWI680188B (en) * | 2017-04-10 | 2019-12-21 | 日商日本製鐵股份有限公司 | Sintered friction material |
| CN111720464A (en) * | 2020-06-18 | 2020-09-29 | 青岛理工大学 | Brake pad with low wear rate and preparation method thereof |
| US11534829B2 (en) | 2017-04-07 | 2022-12-27 | Nippon Steel Corporation | Sintered friction material |
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| CN105715719A (en) * | 2016-03-21 | 2016-06-29 | 北京科技大学 | High-heat-conductivity semimetal brake block |
| CN105822708A (en) * | 2016-03-29 | 2016-08-03 | 宁波市福路德汽车科技发展有限公司 | Processing technology of disc brake pad |
| CN106917837A (en) * | 2017-03-13 | 2017-07-04 | 浙江工贸职业技术学院 | A kind of semi-metallic brake pad and preparation method thereof |
| CN106917837B (en) * | 2017-03-13 | 2018-09-18 | 浙江工贸职业技术学院 | A kind of semi-metallic brake pad and preparation method thereof |
| US11534829B2 (en) | 2017-04-07 | 2022-12-27 | Nippon Steel Corporation | Sintered friction material |
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| CN107314067B (en) * | 2017-07-28 | 2019-08-20 | 湖北飞龙摩擦密封材料股份有限公司 | A kind of plate friction lining and its microalloying preparation method |
| CN108071719A (en) * | 2017-11-15 | 2018-05-25 | 重庆嘉萌鸿业科技有限公司 | The formula and its preparation process of a kind of braking sheet for automobile |
| CN108443376A (en) * | 2018-03-22 | 2018-08-24 | 捷通磨擦材料（昆山）有限公司 | A kind of explosion-proof mine mechanical brake piece and preparation method thereof |
| CN110273951A (en) * | 2019-05-21 | 2019-09-24 | 中山市赛福特汽车配件有限公司 | A kind of ceramic brake and preparation method thereof |
| CN111720464A (en) * | 2020-06-18 | 2020-09-29 | 青岛理工大学 | Brake pad with low wear rate and preparation method thereof |
| CN111720464B (en) * | 2020-06-18 | 2022-05-27 | 青岛理工大学 | Brake pad with low wear rate and preparation method thereof |
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