CN103320091A - A friction product - Google Patents
A friction product Download PDFInfo
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- CN103320091A CN103320091A CN2013102004820A CN201310200482A CN103320091A CN 103320091 A CN103320091 A CN 103320091A CN 2013102004820 A CN2013102004820 A CN 2013102004820A CN 201310200482 A CN201310200482 A CN 201310200482A CN 103320091 A CN103320091 A CN 103320091A
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Abstract
The invention provides a friction product. The friction product can be prepared by 1) a step of providing a packaging bag, wherein the external surfaces of the packaging bag comprise a friction working surface and a horseshoe combining surface; the friction working surface is coated with a first mixed emulsion layer; and the horseshoe combining surface is coated with a second mixed emulsion layer; the material of the packaging bag is glass fiber cloth; the inner surfaces of the packaging bag are provided with protruding glass fiber fluff; the first mixed emulsion comprises 3-8 parts of aluminium oxide, 3-8 parts of zircon sand, 5-10 parts of nanometer copper powder, 5-10 parts of calcium hydroxide, 0.2-1 part of guar gum, 0.5-1.5 parts of a silane coupling agent and 100 parts of a styrene-acrylic emulsion; and the second mixed emulsion comprises 10-15 parts of quartz sand, 10-15 parts of zircon sand, 0.2-1 part of guar gum, 0.5-1.5 parts of a silane coupling agent and 100 parts of a styrene-acrylic emulsion; and 2) a step of adding a mixture of friction materials into the packaging bag and performing hot pressing to obtain the friction product. The friction product provided by the invention has advantages of a high initial braking torque and high friction performance, excellent impact strength, and no need of grinding inner and outer surfaces.
Description
Technical field
The present invention relates to the friction materials technical field, relate in particular to a kind of friction goods.
Background technology
At present, form the friction materials of friction plate behind solidification process, owing to have resin in its prescription, and the flowability of resin is better, can the Friction Disk Surface after curing form one deck resin molding.Get rid of without grinding if outside surface is the resin molding of working-surface, can affect the frictional force of original state, cause initial frictional excessively low.If internal surface is namely got rid of without grinding with the resin molding of shoes coating surface, can make in working order lower generation slip between friction plate and the shoes, riveting intensity is reduced, therefore must in follow-up process, grind off the resin molding on the interior outer arc surface of friction plate, this has increased manufacturing and material cost, reduces production efficiency.
In addition, existing friction materials need to add fiber for guaranteeing its intensity in transportation and assembling, however macrofiber can't disperse, can only in compound, add staple fibre, this fiber is easily interrupted when batch mixing, has reduced the bulk strength of goods.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of friction goods is provided.This friction goods has higher initial braking moment and frictional behaviour and excellent shock strength.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
A kind of friction goods, it can be prepared by following method:
1) provides a kind of packing bag for the encapsulation friction materials, described packing bag comprises outside surface and internal surface, the outside surface of described packing bag comprises fricting working surface and shoes bonding surface, described fricting working surface is coated with the first mixed emulsion layer, described shoes bonding surface is coated with the second mixed emulsion layer, the material of described packing bag is glasscloth, the internal surface of described packing bag arranges bossed glass fibre fine hair, and the prescription of described the first mixed emulsion is: aluminum oxide 3-8 part, zircon sand 3-8 part, copper nanoparticle 5-10 part, calcium hydroxide 5-10 part, guar gum 0.2-1 part, silane coupling agent 0.5-1.5 part, and 100 parts of benzene emulsions; The prescription of described the second mixed emulsion is: quartz sand 10-15 part, zircon sand 10-15 part, guar gum 0.2-1 part, silane coupling agent 0.5-1.5 part, and 100 parts of benzene emulsions;
2) the friction materials compound is loaded in the described packing bag, hot pressing namely gets described friction goods.
In the such scheme, the prescription of described friction materials compound is: resol 5-15 part, paracril 2-5 part, barium sulfate 50-80 part, copper powder 1-5 part, aluminum oxide 2-6 part, chromite 2-6 part, graphite 2-5 part, coke 2-5 part, iron powder 2-5 part, and vermiculite 2-6 part.
In the such scheme, described friction goods is friction plate.
In the such scheme, the pressure in the described heat-press step is 150MP, and the time is 10 minutes.
In the such scheme, the length of described glass fibre fine hair is 1-5mm.
In the such scheme, the thickness of described glasscloth is 0.1-1mm.
In the such scheme, described glass fibre fine hair carries out brushing process by the internal surface in described packing bag and obtains.
In the such scheme, described aluminum oxide is less than 300 orders, and zircon sand is less than 120 orders, and calcium hydroxide is less than 120 orders, quartz sand 60-200 order.
In the such scheme, the thickness of described the first mixed emulsion layer and the second mixed emulsion layer is 0.5-2mm.
Compared with prior art, the technique effect obtained of the present invention is:
1) the friction materials compound is packed in the packing bag, after the hot pressing, resulting friction plate does not need to regrind and cuts internal and external cambered surface, this is because outer arc is all without smooth resin molding in the friction plate that this method is produced, outer arc is to be the first mixed emulsion layer on the fricting working surface, this layer directly provides good frictional force, can satisfy safe drag performance; Inner arc is to be the second mixed emulsion layer on the shoes bonding surface, and this layer can provide preferably coating performance and frictional force, and when having guaranteed to fit with shoes, friction plate can not produce slip, like this can economical with materials and tooling cost, increase work efficiency;
2) common friction materials all contains fiber, but owing to the friction materials fiber in mixing process that contains fiber is easily interrupted, makes strength decreased, can not play due effect.And packing bag internal surface of the present invention is provided with glass fibre fine hair, can be deep in the friction materials, be combined with friction materials, not need to add again like this fibre composition in the friction materials compound, utilize fiber outstanding in the packing bag to be combined with material, goods are whole to obtain higher shock strength;
3) fricting working surface of friction goods (being coated with the first mixed emulsion layer) has the performance of high tenacity and high frictional force, contains Nanometer Copper simultaneously, can repair the fine crack of brake drum surface, the materials such as the aluminum oxide that wherein contains in addition and zircon sand can guarantee the initial damping force that material is good, silane coupling agent can form adhesive linkage between glass fibre and benzene emulsion, improve the sticking power of emulsion layer and glass fibre matrix.Can guarantee that friction goods and shoes better fit because the inner arc of friction goods is the flexible layer (being coated with the second mixed emulsion layer) of the high frictional force that has on the shoes bonding surface, reduce under external force, to cause slip.In addition, because the goods bulk strength is to be provided by Fibre Bag, will give goods higher shock strength with the fiber of Weave type;
4) owing to having hole between the glasscloth, fiber is less to the resistance of resin, thereby resin can infiltrate the hole the inside in the glasscloth, is combined into one with cloth, therefore further improved shock strength.
Description of drawings
The vertical view of the packing bag that Fig. 1 provides for the embodiment of the invention 1.
Fig. 2 is the A-A view of Fig. 1.
Embodiment
The invention will be further described below in conjunction with drawings and Examples, and certain following embodiment should not be construed as limitation of the present invention.
Embodiment 1:
As depicted in figs. 1 and 2, it is a kind of packing bag for the encapsulation friction materials that the embodiment of the invention 1 provides, and this packing bag comprises outside surface 1 and internal surface 2.The outside surface 1 of this packing bag comprises fricting working surface 3 and shoes bonding surface 4.This fricting working surface 3 is coated with the first mixed emulsion layer 5.This shoes bonding surface 4 is coated with the second mixed emulsion layer 6.This packing bag is used for encapsulation friction materials 7.The material of this packing bag is glasscloth.The internal surface 2 of this packing bag arranges bossed glass fibre fine hair 8.The prescription of this first mixed emulsion is: 3 parts in aluminum oxide, 3 parts of zircon sands, 5 parts of copper nanoparticles, 5 parts in calcium hydroxide, 0.2 part of guar gum, 0.8 part of silane coupling agent, and 100 parts of benzene emulsions.The prescription of this second mixed emulsion is: 10 parts of quartz sands, 10 parts of zircon sands, 0.2 part of guar gum, 0.8 part of silane coupling agent, and 100 parts of benzene emulsions.
The solid content of benzene emulsion is 40%-50%.In the present embodiment, the thickness of the first mixed emulsion layer 5 and the second mixed emulsion layer 6 is 0.5-2mm.In the present embodiment, the length of glass fibre fine hair is 1-5mm, and the thickness of glasscloth is 0.1-1mm.In the present embodiment, glass fibre fine hair carries out brushing process by the internal surface 2 in packing bag and obtains.Described aluminum oxide is less than 300 orders, and zircon sand is less than 120 orders, and calcium hydroxide is less than 120 orders, quartz sand 60-200 order.
The present invention also provides a kind of friction goods, and it can be prepared by following method:
1) provides above-mentioned packing bag;
2) the friction materials compound is loaded in the above-mentioned packing bag, places thermoset mold, keep the first mixed emulsion layer consistent with the friction goods fricting working surface, under the pressure of 150MPa, solidified 10 minutes, after boring, namely obtain finished product.In the present embodiment, this friction goods is friction plate.
In the present embodiment, the prescription of described friction materials compound is: 5 parts in resol, 5 parts of paracrils, 77 parts in barium sulfate, 1 part of copper powder, 2 parts in aluminum oxide, 2 parts of chromites, 2 parts in graphite, 2 parts of cokes, 2 parts of iron powders, and 2 parts of vermiculites.
The friction plate of the present embodiment namely has higher initial braking moment and frictional behaviour under without the state of surfacing and break-in after testing.And shock strength is far above common friction materials.
Frictional behaviour (GB5763-2008)
Shock strength (GB5763-2008): 0.80J/cm
2
Initial braking moment: 12000Nm.（GB12676-1999）。
Embodiment 2:
The packing bag of the present embodiment and embodiment 1 are roughly the same, difference is that the substances content in the prescription of the prescription of the first mixed emulsion and the second mixed emulsion is different, and be specially: the prescription of the first mixed emulsion is: 8 parts in aluminum oxide, 8 parts of zircon sands, 10 parts of copper nanoparticles, 10 parts in calcium hydroxide, 1 part of guar gum, 1.2 parts of silane coupling agents, and 100 parts of benzene emulsions.The prescription of this second mixed emulsion is: 15 parts of quartz sands, 15 parts of zircon sands, 1 part of guar gum, 1.2 parts of silane coupling agents, and 100 parts of benzene emulsions.
The present invention also provides a kind of friction goods, itself and embodiment 1 are roughly the same, difference is that the substances content in the prescription of friction materials compound is different, and be specially: the prescription of this friction materials compound is: 15 parts in resol, 5 parts of paracrils, 50 parts in barium sulfate, 5 parts of copper powders, 6 parts in aluminum oxide, 6 parts of chromites, 5 parts in graphite, 5 parts of cokes, 5 parts of iron powders, and 6 parts of vermiculites.
Under without the state of surfacing and break-in, namely have higher initial braking moment and frictional behaviour after testing.And shock strength is far above common friction materials.
Frictional behaviour
Shock strength: 0.85J/cm
2
Initial braking moment: 13000 Nm.
Embodiment 3:
The packing bag of the present embodiment and embodiment 1 are roughly the same, difference is that the substances content in the prescription of the prescription of the first mixed emulsion and the second mixed emulsion is different, and be specially: the prescription of the first mixed emulsion is: 5 parts in aluminum oxide, 6 parts of zircon sands, 8 parts of copper nanoparticles, 8 parts in calcium hydroxide, 0.5 part of guar gum, 0.5 part of silane coupling agent, and 100 parts of benzene emulsions.The prescription of this second mixed emulsion is: 12 parts of quartz sands, 12 parts of zircon sands, 0.5 part of guar gum, 1.5 parts of silane coupling agents, and 100 parts of benzene emulsions.
The present invention also provides a kind of friction goods, itself and embodiment 1 are roughly the same, difference is that the substances content in the prescription of friction materials compound is different, and be specially: the prescription of this friction materials compound is: 10 parts in resol, 3 parts of paracrils, 65 parts in barium sulfate, 4 parts of copper powders, 5 parts in aluminum oxide, 5 parts of chromites, 4 parts in graphite, 3 parts of cokes, 3 parts of iron powders, and 5 parts of vermiculites.
Under without the state of surfacing and break-in, namely have higher initial braking moment and frictional behaviour after testing.And shock strength is far above common friction materials.
Frictional behaviour
Shock strength: 0.82J/cm
2
Initial braking moment: 12600Nm.
Comparative Examples 1:
The difference of the friction goods of the friction goods of this Comparative Examples and embodiment 1 is not adopt the glass fibre packing bag to encapsulate, and does not also apply the first mixed emulsion and the second mixed emulsion.Added glass fibre in the prescription of the friction materials compound of this Comparative Examples, the prescription of described friction materials compound is: 10 parts in glass fibre, 5 parts in resol, 5 parts of paracrils, 67 parts in barium sulfate, 1 part of copper powder, 2 parts in aluminum oxide, 2 parts of chromites, 2 parts in graphite, 2 parts of cokes, 2 parts of iron powders, and 2 parts of vermiculites.Then friction materials is obtained friction goods according to the step hot-press solidifying moulding identical with embodiment 1.
Initially braking moment is lower under without the state of surfacing and break-in after testing, and initial damping force improves behind surfacing, but still is lower than the embodiment of the invention, and shock strength is general.
Frictional behaviour
Shock strength: 0.45J/cm
2
Without the initial braking moment of surfacing: 7000 Nm
Initial braking moment behind surfacing: 10000 Nm.
Comparative Examples 2:
The packing bag of this Comparative Examples and embodiment 1 are roughly the same, and difference is that the outside surface of packing bag does not apply the first mixed emulsion and the second mixed emulsion.
The friction materials compound identical with embodiment 1 is packaged in the packing bag of this Comparative Examples, utilizes the step identical with embodiment 1 to obtain friction goods.Initially braking moment is lower under without the state of surfacing and break-in after testing for this friction goods, and shock strength is higher than common friction materials.
Frictional behaviour
Shock strength: 0.78J/cm
2
Without the initial braking moment of surfacing: 8000Nm.
Comparative Examples 3:
The packing bag of this Comparative Examples and embodiment 1 are roughly the same, and difference is that the material of packing bag is polyethylene, are coated with the first mixed emulsion and the second mixed emulsion in the polyethylene bag outside.
The friction materials compound identical with embodiment 1 is packaged in the packing bag of this Comparative Examples, utilizes the step identical with embodiment 1 to obtain friction goods.This friction goods is after testing under the state without surfacing and break-in, and when doing initial damping force test, poor because of emulsion and polyethylene bag bonding force, emulsion coating comes off very soon, records initial braking moment lower.When adopting polyethylene to do packing bag, shock strength is starkly lower than Glass Fibre Bag.
Frictional behaviour
Shock strength: 0.25J/cm
2
Without the initial braking moment of surfacing: 7500Nm.
Comparative Examples 4:
The packing bag of this Comparative Examples and embodiment 1 are roughly the same, and difference is that the internal surface of packing bag does not carry out plucking and processes, therefore there is not glass fibre fine hair.Added glass fibre in the prescription of the friction materials compound of this Comparative Examples, the prescription of described friction materials compound is: 10 parts in glass fibre, 5 parts in resol, 5 parts of paracrils, 67 parts in barium sulfate, 1 part of copper powder, 2 parts in aluminum oxide, 2 parts of chromites, 2 parts in graphite, 2 parts of cokes, 2 parts of iron powders, and 2 parts of vermiculites.Then friction materials is obtained friction goods according to the step hot-press solidifying moulding identical with embodiment 1.This friction goods initial braking moment under without the state of surfacing and break-in is higher than common friction materials, and shock strength is lower than embodiment 1.
Frictional behaviour
Shock strength: 0.70J/cm
2
Without the initial braking moment of surfacing: 11800 Nm.
Comparative Examples 5:
The packing bag of this Comparative Examples and embodiment 1 are roughly the same, and difference is that packing bag is not carry out the cotton fiber cloth that plucking is processed.Added glass fibre in the prescription of the friction materials compound of this Comparative Examples, the prescription of described friction materials compound is: 10 parts in glass fibre, 5 parts in resol, 5 parts of paracrils, 67 parts in barium sulfate, 1 part of copper powder, 2 parts in aluminum oxide, 2 parts of chromites, 2 parts in graphite, 2 parts of cokes, 2 parts of iron powders, and 2 parts of vermiculites.Then friction materials is obtained friction goods according to the step hot-press solidifying moulding identical with embodiment 1.This friction goods initial braking moment under without the state of surfacing and break-in is higher than common friction materials, and shock strength is lower than embodiment 1.This be since the intensity of cotton own not as glass fibre, thereby resin is difficult for seeing through cotton and can not gos deep into that cotton is inner to be became one with it in addition, thereby intensity is lower.
Frictional behaviour
Shock strength: 0.50J/cm
2
Without the initial braking moment of surfacing: 10500 Nm.
Need to prove, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from aim and the scope of technical solution of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. friction goods, it can be by following method preparation:
1) provides a kind of packing bag for the encapsulation friction materials, described packing bag comprises outside surface and internal surface, the outside surface of described packing bag comprises fricting working surface and shoes bonding surface, described fricting working surface is coated with the first mixed emulsion layer, described shoes bonding surface is coated with the second mixed emulsion layer, the material of described packing bag is glasscloth, the internal surface of described packing bag arranges bossed glass fibre fine hair, and the prescription of described the first mixed emulsion is: aluminum oxide 3-8 part, zircon sand 3-8 part, copper nanoparticle 5-10 part, calcium hydroxide 5-10 part, guar gum 0.2-1 part, silane coupling agent 0.5-1.5 part, and 100 parts of benzene emulsions; The prescription of described the second mixed emulsion is: quartz sand 10-15 part, zircon sand 10-15 part, guar gum 0.2-1 part, silane coupling agent 0.5-1.5 part, and 100 parts of benzene emulsions;
2) the friction materials compound is loaded in the described packing bag, hot pressing namely gets described friction goods.
2. friction goods as claimed in claim 1, it is characterized in that, the prescription of described friction materials compound is: resol 5-15 part, paracril 2-5 part, barium sulfate 50-80 part, copper powder 1-5 part, aluminum oxide 2-6 part, chromite 2-6 part, graphite 2-5 part, coke 2-5 part, iron powder 2-5 part, and vermiculite 2-6 part.
3. friction goods as claimed in claim 1 is characterized in that, described friction goods is friction plate.
4. friction goods as claimed in claim 1 is characterized in that, the pressure in the described heat-press step is 150MP, and the time is 10 minutes.
5. friction goods as claimed in claim 1 is characterized in that, the length of described glass fibre fine hair is 1-5mm.
6. friction goods as claimed in claim 1 is characterized in that, the thickness of described glasscloth is 0.1-1mm.
7. friction goods as claimed in claim 1 is characterized in that, described glass fibre fine hair carries out brushing process by the internal surface in described packing bag and obtains.
8. friction goods as claimed in claim 1 is characterized in that, described aluminum oxide is less than 300 orders, and zircon sand is less than 120 orders, and calcium hydroxide is less than 120 orders, quartz sand 60-200 order.
9. friction goods as claimed in claim 1 is characterized in that, the thickness of described the first mixed emulsion layer and the second mixed emulsion layer is 0.5-2mm.
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Cited By (6)
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| CN105176210A (en) * | 2015-08-06 | 2015-12-23 | 湖北飞龙摩擦密封材料股份有限公司 | Coating material for automobile braking system and preparation method thereof |
| CN108930735A (en) * | 2018-07-27 | 2018-12-04 | 杭州西湖摩擦材料有限公司 | A kind of ceramic composite fibrous brake block |
| CN108930736A (en) * | 2018-07-27 | 2018-12-04 | 杭州西湖摩擦材料有限公司 | A kind of preparation method of ceramic composite fibrous brake block |
| CN109628065A (en) * | 2019-01-04 | 2019-04-16 | 上海华信摩擦材料有限公司 | A kind of brake block friction material 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 |
| CN114908570A (en) * | 2022-04-29 | 2022-08-16 | 安徽汉烯科技有限公司 | Base film for graphene oxide coating and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176210A (en) * | 2015-08-06 | 2015-12-23 | 湖北飞龙摩擦密封材料股份有限公司 | Coating material for automobile braking system and preparation method thereof |
| CN108930735A (en) * | 2018-07-27 | 2018-12-04 | 杭州西湖摩擦材料有限公司 | A kind of ceramic composite fibrous brake block |
| CN108930736A (en) * | 2018-07-27 | 2018-12-04 | 杭州西湖摩擦材料有限公司 | A kind of preparation method of ceramic composite fibrous brake block |
| CN109628065A (en) * | 2019-01-04 | 2019-04-16 | 上海华信摩擦材料有限公司 | A kind of brake block friction material 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 |
| CN114908570A (en) * | 2022-04-29 | 2022-08-16 | 安徽汉烯科技有限公司 | Base film for graphene oxide coating and preparation method thereof |
| CN114908570B (en) * | 2022-04-29 | 2023-11-17 | 安徽汉烯科技有限公司 | Base film for graphene oxide coating and preparation method thereof |
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