CN1053951C - Brake plate - Google Patents
Brake plate Download PDFInfo
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- CN1053951C CN1053951C CN96115295A CN96115295A CN1053951C CN 1053951 C CN1053951 C CN 1053951C CN 96115295 A CN96115295 A CN 96115295A CN 96115295 A CN96115295 A CN 96115295A CN 1053951 C CN1053951 C CN 1053951C
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Abstract
The present invention relates to a brake sheet. The brake sheet comprises the following components of mixing resin, inorganic macromolecular compounds, barite powder, mineral powder, calcium carbonate, metal oxide, graphite, molybdenum disulphide, glass fiber, steel fiber and copper fiber, wherein the mixing resin is composed of phenolic resin and urea-formaldehyde resin. Firstly, the phenolic resin and the urea-formaldehyde resin are input into a kneader and stirred in preparation; secondly, the inorganic macromolecular compounds are input into the kneader and stirred for polyblending modification processing; finally, the next preparation processes are carried out. The product of the present invention has the advantages of stable friction coefficient, little heat fading performance, good heat resistance, mild abrasion rate, no pairing damage, low brake noise and low cost.
Description
The present invention relates to braking brake block of a kind of motor vehicle and preparation method thereof.
Original brake block is that raw material is made with the asbestos filled phenolic resin.Because of so it comes filled phenolic resin to the lamination coating that environment pollutes both at home and abroad all with non-asbestos.The raw material ratio of components of non-asbestos brake block is more various at present, and the main distinction is the tackiness agent difference.Generally adopt both at home and abroad based on phenolic resin, organic high with other, molecular compound carries out modification to it.The shortcoming of well-known high-molecular organic material maximum is a poor heat resistance, does not satisfy the wear-resisting requirement under the worst hot case condition.The human inorganic compound is arranged in recent years as be used to make the oil-well rig brake block with boron modified phenolic resin, the resistance to heat of goods, heat fade performance are significantly improved than the goods of not modification.But manufacturing process more complicated, cost height with boron modified phenolic resin.It is a lot of easily damaged partss of consumption for automobile brake sheet, and the cost height is inapplicable.
The object of the present invention is to provide the brake block that a kind of cost is low, resistance to heat is good.
Purpose of the present invention can realize by following measure: a kind of brake block is characterized in that; The weight percentage of each component is: hybrid resin 10～30%, bentonite clay or alum earth 12～18%, blanc fixe 15～20% Iron Ore Powder 20～25%, calcium carbonate 5～6%, magnesium oxide or aluminium sesquioxide 2～5%, graphite 3～5%, molybdenum disulfide 1～2%, glass fibre 2～3%, Steel Fibre 2～5%, copper fiber 1%, wherein hybrid resin is the mixture of urea formaldehyde resin and phenolic resin, and the mixed weight ratio of urea formaldehyde resin and phenolic resin is 1～2: 1.Preferably the weight percentage of each component is: hybrid resin 20%, bentonite clay or alum earth 15%, blanc fixe 15%, Iron Ore Powder 25%, calcium carbonate 5%, magnesium oxide or aluminium sesquioxide 5%, graphite 5%, molybdenum disulfide 1%, glass fibre 3%, Steel Fibre 5%, copper fiber 1%.A kind of preparation method of brake block is characterized in that: 1, mediate 1. will phenolic resin and urea formaldehyde resin drop in the dispersion kneader and stirred 5 minutes, bentonite clay or alum earth are dropped into to stir in the dispersion kneader again and carried out blending and modifying in 10 minutes and handle.2. filler is dropped in the above-mentioned dispersion kneader together, fully stirred 10 minutes.3. under stirring condition, in above-mentioned dispersion kneader, drop into glass fibre, Steel Fibre and copper fiber successively, stirred 20 minutes.2, it is 1. dry to give processing: with kneaded dry materials, with feel tack-free till.2. pulverize: the material that drying is crossed is cooled to normal temperature, drops in the shredder and pulverizes, and the granularity that makes material is about 80 orders.3,1. compression molding is suppressed: coating release agent in the mould that Xiang Yure crosses, put into steel backing treated mistake and that scribble Bond, material is placed die cavity, under 160 ℃～170 ℃, unit pressure 18～20MPa condition, suppress 1～1.5 minute/mm, 2. heat treatment: pile up on anchor clamps semi-finished product disc type sheet fastening with screw, place baking oven then, rising to 100 ℃ through 1 hour kept 3 hours, rose to 125～130 ℃ again through 30 minutes and kept 3 hours, stop afterwards heating treat that temperature is reduced to can discharging below 60 ℃.4, reprocessing: can obtain finished product through flour milling with after spraying paint.
The present invention mainly is with the tackiness agent of inorganic macromolecule compound modified organic polymer resin as brake block.
Raw material of the present invention mainly includes Bond, modifier, filler and reinforcing material.Wherein Bond is the hybrid resin of phenolic resin and urea formaldehyde resin, and its amount ratio is a urea formaldehyde resin: phenolic resin=1～2: 1.Though can reduce cost but can influence the performance of brake block if the urea formaldehyde resin ratio is too high,, can not fall if the urea formaldehyde resin ratio is crossed low brake block cost because the physical property of urea formaldehyde resin is poor than phenolic resin.Above-mentioned hybrid resin accounts in prescription and can effectively other component be combined securely in 10～30% o'clock.Preferably hybrid resin accounts for 20% in prescription.The modifier of above-mentioned hybrid resin is inorganic macromolecule compound such as alum earth and bentonite clay.They and hybrid resin blend can be with its modifications, because the inorganic macromolecule compound resistance to heat well has pliability again, its higher cohesive force and aging cohesive force can improve the intensity of product, and it can also improve the ductility of tackiness agent and the cost that adhesive attraction can reduce product again greatly simultaneously.Product has noise during hard brake very much if consumption too much solidifies the back, if the very few effect that does not reach modification again of consumption, so inorganic macromolecule compound in prescription, account for 12～18% more suitable.Be preferably in and account for 15% in the prescription.The reinforcing material that the present invention adopts includes glass fibre, Steel Fibre and copper fiber, and they can improve the impact strength of product.Wherein glass fibre also can improve the resistance to heat of product, but consumption is too much unsuitable, can increase the fragility of product too much.Generally in prescription, account for 2～3%, be preferably in and account for 3% in the prescription.Steel, copper fiber also can improve the heat-conducting property of product, and the two has noise as the too hard easy damaged antithesis of consumption fecund product during brake, also can increase cost simultaneously.General Steel Fibre accounts for 2～5% in prescription, the copper fiber accounts for 1% in prescription.Preferably the former accounts for 5% in prescription.The filler that the present invention adopts includes blanc fixe, Iron Ore Powder, calcium carbonate, metallic oxide, graphite and molybdenum disulfide.Wherein blanc fixe can improve the cohesive force of product, and the too much product of consumption is too hard, and it is 15～20% more suitable generally to account in prescription, preferably accounts for 15%.Iron Ore Powder can be improved the goods heat-conducting property and can reduce cost again, but the too much rapid heat dissipation of consumption also can influence the intensity of product, and it is 20～25% more suitable generally to account in prescription, preferably accounts for 25%.Calcium carbonate (coarse whiting) mainly is the stability that can improve product size, reduces cure shrinkage, also can reduce cost.But consumption too much can influence the intensity of product, and it is 5～6% more suitable generally to account in prescription, preferably accounts for 5%.Metallic oxide such as magnesium oxide, aluminium sesquioxide, it can regulate high molecular flexibility, and it is 2～5% more suitable that its consumption accounts in prescription, preferably accounts for 5%.Graphite can improve wear-resisting, the anti-ablation, heat conduction of product, performance such as lubricated, and consumption too much can increase cost, generally accounts for 3～5% in prescription, preferably accounts for 5%.Molybdenum disulfide can improve the wear-resisting and greasy property of product, and consumption too much can increase cost, generally accounts for 1～2% in prescription, preferably accounts for 1%.
The preparation method of product of the present invention is as follows: 1, mediate 1. will phenolic resin and urea formaldehyde resin drop in the dispersion kneader and stirred 5 minutes, bentonite clay or alum earth are dropped into to stir in the dispersion kneader again and carried out blending and modifying in 10 minutes and handle.2. filler is dropped in the above-mentioned dispersion kneader together, fully stirred 10 minutes.3. under stirring condition, in above-mentioned dispersion kneader, drop into glass fibre, Steel Fibre and copper fiber successively, stirred 20 minutes.2, it is 1. dry to give processing: with kneaded dry materials, it can be that air dry also can be a drying in the air dry oven about 105 ℃, and decide on the volatile constituent of material time of drying, with feel tack-free till.2. pulverize: the material that drying is crossed is cooled to normal temperature, drops in the shredder and pulverizes, and the granularity that makes material is about 80 orders.3,1. compression molding is suppressed: coating release agent in the mould that Xiang Yure crosses, put into steel backing treated mistake and that scribble Bond, material is placed die cavity, under 160 ℃～170 ℃, unit pressure 18～20MPa condition, suppress 1～1.5 minute/mm, the brake block that is a millimeters thick will be suppressed 1-1.5 minute, so just obtain material is fixed on semi-finished product disc type sheet on the steel backing.2. heat treatment: pile up on anchor clamps semi-finished product disc type sheet fastening with screw, place baking oven then, rose to 100 ℃ through 1 hour and kept 3 hours, rose to 125～130 ℃ again through 30 minutes and kept 3 hours, stop afterwards heating treat that temperature is reduced to can discharging below 60 ℃.4, reprocessing: can obtain finished product through flour milling with after spraying paint.
The product that the technology of the present invention is produced has following advantage:
1, stable friction factor, character of heat-fading is little, and resistance to heat is good.
2, wear rate appropriateness is difficult for the scratch antithesis.
Noise is little when 3, braking.
4, cost is low, and price only is 1/3 of an import like product.
Example 1
Getting 5 kilograms of phenolic resin, 5 kilograms of urea formaldehyde resins drops into their in dispersion kneader and stirred 5 minutes, again 18 kilograms of alum earths are dropped into to stir in the dispersion kneader and carried out the blending and modifying processing in 10 minutes, get 5 kilograms of magnesium oxide, 20 kilograms of blanc fixes, 25 kilograms of Iron Ore Powder, 5 kilograms of graphite, 2 kilograms of molybdenum disulfide and 6 kilograms of calcium carbonate again and drop into together in the above-mentioned dispersion kneader, fully stirred 10 minutes.Under stirring condition, in above-mentioned dispersion kneader, drop into 3 kilograms of glass fibres, 5 kilograms of Steel Fibres and 1 kilogram of copper fiber afterwards successively, stirred 20 minutes.With the air dry oven inner drying of kneaded material about 105 ℃, treat that feel is tack-free till.The material that drying is crossed is cooled to normal temperature, drops in the shredder and pulverizes, and it is standby to cross 80 mesh sieve extracting screen underflows.Mould places and gives hot temperature in the hydraulic press and be controlled at 160～170 ℃.Reach when mould and open mould after the temperature of regulation and coat remover (oleic acid) and put into steel backing treated mistake and that scribble Bond, pour material into die cavity and pave, cover die cap, push in the hydraulic press at 160～170 ℃, suppress 1～1.5 minute/mm under unit pressure 18～20MPa condition.General venting is 2～3 times in compacting.Molding obtains semi-finished product disc type sheet after the moulding.Again it is piled up on anchor clamps, fastening with screw, place baking oven, through about 1 hour, be warming up to 100 ℃, kept 3 hours, through about 30 minutes, be warming up to 125～130 ℃ again, keep stopping after 3 hours heating, treating that temperature is reduced to can discharging below 60 ℃.Can obtain finished product through flour milling with after spraying paint again.
Example 2
Repeat the operation of example 1, wherein 4 kilograms in phenolic resin, 6 kilograms of urea formaldehyde resins, 18 kilograms of bentonite clays, 5 kilograms of aluminium sesquioxides, 20 kilograms of blanc fixes, 25 kilograms of Iron Ore Powder, 5 kilograms in graphite, 2 kilograms of molybdenum disulfide, 6 kilograms in calcium carbonate, 3 kilograms in glass fibre, 5 kilograms of Steel Fibres, 1 kilogram of copper fiber.
Example 3
Repeat the operation of example 1, wherein phenolic resin is 10 kilograms, 20 kilograms of urea formaldehyde resins, 12 kilograms of alum earths, 2 kilograms of aluminium sesquioxides, 20 kilograms of blanc fixes, 20 kilograms of Iron Ore Powder, 4 kilograms in graphite, 1 kilogram of molybdenum disulfide, 6 kilograms in calcium carbonate, 2 kilograms in glass fibre, 2 kilograms of Steel Fibres, 1 kilogram of copper fiber.
Example 4
Repeat the operation of example 1, wherein 10 kilograms in phenolic resin, 20 kilograms of urea formaldehyde resins, 12 kilograms of bentonite clays, 2 kilograms in magnesium oxide, 15 kilograms of blanc fixes, 25 kilograms of Iron Ore Powder, 3 kilograms in graphite, 2 kilograms of molybdenum disulfide, 5 kilograms in calcium carbonate, 2 kilograms in glass fibre, 3 kilograms of Steel Fibres, 1 kilogram of copper fiber.
Example 5
Repeat the operation of example 1, wherein 10 kilograms in phenolic resin, 10 kilograms of urea formaldehyde resins, 15 kilograms of bentonite clays, 5 kilograms in magnesium oxide, 15 kilograms of blanc fixes, 25 kilograms of Iron Ore Powder, 5 kilograms in graphite, 1 kilogram of molybdenum disulfide, 5 kilograms in calcium carbonate, 3 kilograms in glass fibre, 5 kilograms of Steel Fibres, 1 kilogram of copper fiber.
Annotate: the used percentage of present specification all is weight percentage.
Product of the present invention detects through China Automobile Industry Corporation's Changchun automotive research, institute's survey project meets the GB5763-86 standard fully, and concrete data are as shown in the table: the sequence number project is according to detected temperatures technical requirements measured value 1 coefficientoffriction GB5763 100 ℃ 0.25～0.60 0.39
150℃ 0.25～0.60 0.39
200℃ 0.25～0.60 0.39
250℃ 0.25～0.60 0.40
300 ℃ 0.25～0.60 0.392 wear rate (* 10
-7GB5763 100 ℃≤0.51 0.25
cm
3/N.m) 150℃ ≤0.77 0.37
200℃ ≤1.02 0.62
250℃ ≤2.04 1.10
300℃ ≤3.57 2.56
Product of the present invention sees the following form with the performance comparison of domestic and international standard and product:
| Project category | Friction factor (μ) | Wear rate (* 10 -7cm 3/Nm | ||||||||
| 100℃ | 150℃ | 200℃ | 250℃ | 300℃ | 100℃ | 150℃ | 200℃ | 250℃ | 300℃ | |
| GB5763～86 | 0.30～0.60 | 0.30～0.60 | 0.20～0.60 | 0.15～0.60 | Uncertain | 0.51 | 0.77 | 1.02 | 2.04 | 3.57 |
| KSR4024 | 0.30～0.60 | 0.30～0.60 | 0.20～0.60 | 0.15～0.60 | Uncertain | 0.51 | 0.77 | 1.02 | 2.04 | |
| JISD4411 | 0.30～0.60 | 0.30～0.60 | 0.20～0.60 | 0.15～0.60 | Uncertain | 0.51 | 0.77 | 1.02 | 2.04 | |
| Homemade no sheet asbestos | 0.40 | 0.49 | 0.44 | 0 41 | 0.246 | 0.281 | 0.366 | 0.517 | ||
| Homemade sheet asbestos | 0.58 | 0.58 | 0.45 | 0.34 | 0.244 | 0.291 | 0.204 | 0.1898 | ||
| Former of BZNZ | 0.46 | 0.37 | 0.31 | 0.20 | 0.371 | 0.515 | 0.628 | 0.401 | ||
| Former of POLONEZ | 0.44 | 0.45 | 0.37 | 0.33 | 0.271 | 0.383 | 0.581 | 0.446 | ||
| Product of the present invention | 0.39 | 0.39 | 0.39 | 0.40 | 0.39 | 0.25 | 0.37 | 0.62 | 1.10 | 2.56 |
The The friction coefficient temperature of the product of the present invention almost no change that raises illustrates that its resistance to heat is good and stable as can be seen from the above table.The wear rate of product of the present invention suits, illustrates that it has certain pliability, the soft or hard appropriateness.Though and some product wear rate is little, the too big easy damaged automobile of its product hardness antithesis, noise is also big during brake.
Claims (3)
1, a kind of brake block is characterized in that; The weight percentage of each component is: hybrid resin 10～30%, bentonite clay or alum earth 12～18%, blanc fixe 15～20%, Iron Ore Powder 20～25%, calcium carbonate 5～6%, magnesium oxide or aluminium sesquioxide 2～5%, graphite 3～5%, molybdenum disulfide 1～2%, glass fibre 2～3%, Steel Fibre 2～5%, copper fiber 1%, hybrid resin are the mixture of urea formaldehyde resin and phenolic resin and urea formaldehyde resin and the mixed weight ratio of phenolic resin is 1～2: 1.
2, brake block according to claim 1 is characterized in that: the weight percentage of each component is: hybrid resin 20%, bentonite clay or alum earth 15%, blanc fixe 15%, Iron Ore Powder 25%, calcium carbonate 5%, magnesium oxide or aluminium sesquioxide 5%, graphite 5%, molybdenum disulfide 1%, glass fibre 3%, Steel Fibre 5%, copper fiber 1%.
3, a kind of preparation method of brake block, it is characterized in that: (1), mediate 1. and will stir 5 minutes in phenolic resin and the urea formaldehyde resin input dispersion kneader, carried out the blending and modifying processing in 10 minutes with stirring in bentonite clay or the alum earth input dispersion kneader again, 2. filler is dropped in the above-mentioned dispersion kneader together, fully stirred 10 minutes, 3. under stirring condition, in above-mentioned dispersion kneader, drop into glass fibre successively, Steel Fibre and copper fiber, stirred 20 minutes, (2), it is 1. dry to give processing: with kneaded dry materials, with feel tack-free till, 2. pulverize: the material that drying is crossed is cooled to normal temperature, drop in the shredder and pulverize, the granularity that makes material is about 80 orders, (3), 1. compression molding is suppressed: coating release agent in the mould that Xiang Yure crosses, put into steel backing treated mistake and that scribble Bond, material is placed die cavity, at 160 ℃～170 ℃, suppress 1～1.5 minute/mm under unit pressure 18～20MPa condition, 2. heat treatment: pile up on anchor clamps semi-finished product disc type sheet fastening with screw, place baking oven then, rising to 100 ℃ through 1 hour kept 3 hours, rose to 125～130 ℃ again kept 3 hours through 30 minutes, stop afterwards heating treat that temperature is reduced to below 60 ℃ can discharging, (4), reprocessing: can obtain finished product through flour milling with after spraying paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115295A CN1053951C (en) | 1996-05-10 | 1996-05-10 | Brake plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115295A CN1053951C (en) | 1996-05-10 | 1996-05-10 | Brake plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1165255A CN1165255A (en) | 1997-11-19 |
| CN1053951C true CN1053951C (en) | 2000-06-28 |
Family
ID=5122569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96115295A Expired - Fee Related CN1053951C (en) | 1996-05-10 | 1996-05-10 | Brake plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1053951C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389093C (en) * | 2006-08-31 | 2008-05-21 | 杜亮 | Metal-free ceramic-type brake plate and processing method |
| CN100432475C (en) * | 2003-12-12 | 2008-11-12 | 格拉夫冯雷克斯工业产品有限公司 | One-piece friction element comprising a substrate having a friction lining thereon, and a process for the production thereof |
| CN101813148A (en) * | 2010-05-20 | 2010-08-25 | 湖南博云汽车制动材料有限公司 | Low-metal ceramic-based air-pressure disk type brake pad and preparation method thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361797C (en) * | 2005-05-24 | 2008-01-16 | 东华大学 | Method for preparing brake sheets made from macromolecule alloy |
| CN100419300C (en) * | 2006-06-19 | 2008-09-17 | 河北正大摩擦制动材料有限公司 | Composite mineral fibre reinforced brake liner and preparation process and special device therefor |
| ITMI20130998A1 (en) * | 2013-06-17 | 2014-12-18 | Freni Brembo Spa | FRICTION MATERIAL FOR BRAKING PADS AND RELATIVE BRAKING PADS |
| CN106217709A (en) * | 2016-07-27 | 2016-12-14 | 江苏晟达德合交通工程实业有限公司 | The high friction composite brake shoe watt back of the body and the molded vulcanization method of friction piece |
| CN110978353B (en) * | 2019-11-05 | 2021-09-14 | 青岛方冠摩擦材料有限公司 | High-temperature-resistant automobile brake pad and preparation method thereof |
| CN113118434B (en) * | 2021-03-31 | 2021-12-17 | 上海连纵轨道交通科技有限公司 | Brake pad of high-speed motor train unit and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042763A (en) * | 1988-11-18 | 1990-06-06 | 沈阳市石棉制品研究所 | Manufacturing process of brake friction plate |
| EP0443550A1 (en) * | 1990-02-20 | 1991-08-28 | Sumitomo Electric Industries, Ltd. | Asbestos-free brake lining |
| EP0594172A1 (en) * | 1992-10-21 | 1994-04-27 | Akebono Brake Industry Co., Ltd. | Method for producing friction materials |
-
1996
- 1996-05-10 CN CN96115295A patent/CN1053951C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042763A (en) * | 1988-11-18 | 1990-06-06 | 沈阳市石棉制品研究所 | Manufacturing process of brake friction plate |
| EP0443550A1 (en) * | 1990-02-20 | 1991-08-28 | Sumitomo Electric Industries, Ltd. | Asbestos-free brake lining |
| EP0594172A1 (en) * | 1992-10-21 | 1994-04-27 | Akebono Brake Industry Co., Ltd. | Method for producing friction materials |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432475C (en) * | 2003-12-12 | 2008-11-12 | 格拉夫冯雷克斯工业产品有限公司 | One-piece friction element comprising a substrate having a friction lining thereon, and a process for the production thereof |
| CN100389093C (en) * | 2006-08-31 | 2008-05-21 | 杜亮 | Metal-free ceramic-type brake plate and processing method |
| CN101813148A (en) * | 2010-05-20 | 2010-08-25 | 湖南博云汽车制动材料有限公司 | Low-metal ceramic-based air-pressure disk type brake pad and preparation method thereof |
| CN101813148B (en) * | 2010-05-20 | 2011-06-29 | 湖南博云汽车制动材料有限公司 | Low-metal ceramic-based air-pressure disk type brake pad and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1165255A (en) | 1997-11-19 |
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