CN1015127B - Method for making friction piece of winding-type clutch - Google Patents
Method for making friction piece of winding-type clutchInfo
- Publication number
- CN1015127B CN1015127B CN 90105109 CN90105109A CN1015127B CN 1015127 B CN1015127 B CN 1015127B CN 90105109 CN90105109 CN 90105109 CN 90105109 A CN90105109 A CN 90105109A CN 1015127 B CN1015127 B CN 1015127B
- Authority
- CN
- China
- Prior art keywords
- latex
- phenolic resin
- copper wire
- synthetic
- tackiness agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Abstract
The present invention relates to a method for making a friction piece of a winding type clutch. The present invention is characterized in that the line of an asbestos copper wire strip used as framework material presents a Y shape. A binder is a mixture prepared with soluble phenolic resin and heat resistant and oil resistant synthetic rubber latex. The asbestos copper wire strip is dipped in the mixed binder only once and dried once. The present invention improves the performance of the product, reduces the cost of the product and has the advantages of safety and reliability.
Description
The present invention relates to a kind of manufacture method of friction piece of winding-type clutch.
Friction piece of winding-type clutch is the friction material of transferring power in the clutch device that uses of high speed car, large-tonnage tractor and various heavy machinery.It is to be framework material with the asbestos copper wire cloth, first impregnated phenolic resin, dip-coating rubber number time again after the drying is cut into cloth after the several drying, again through folding, integer, be wound in annular blank, then by hot-forming, vulcanizing treatment, grind and form.This friction material has satisfied at a high speed substantially, the usage requirement of heavily loaded Motor Vehicle, but also there are some problems, mainly contain following several respects: 1, tackiness agent is to be material of main part with rubber, the phenolic resin consumption seldom, the resistance to high temperature of rubber is met high temperature in therefore using and the phenomenon that is clamminess just occurred, even bond with antithesis not as phenolic resin, the trouble that also exists rubber to be burnt in early days simultaneously, and the working life of having reduced product.2, have hidden danger in the production, phenolic resin is to make solvent with alcohol in the tackiness agent, and rubber is to make solvent with gasoline, and alcohol and gasoline all are combustible and explosive articles.3, complex process need be soaked phenolic resin once, impregnation three times, dry four times altogether.
The object of the present invention is to provide a kind of safe, make the new process of friction piece of winding-type clutch easily.
The manufacture method of friction piece of winding-type clutch of the present invention is: with asbestos copper wire band is framework material, with phenolic resin and rubber is tackiness agent, after in tackiness agent, adding bulking agent, with the agent of asbestos copper wire band dip bonding, and drying, integer, be wound in annular blank, again through hot pressing with grind and make friction plate.It is characterized in that described tackiness agent is by phenolic resin and the synthetic mixed adhesive of oil-resisting and heat-resisting synthetic latex, its compound method is: 1, with water dilution phenolic resin and latex, the concentration that makes phenolic resin is between 40-50%, the concentration of latex is between 11-15%, and the pH value of phenol resin solution and latex solution is alkalescence.2, the weight ratio of phenolic resin and latex is that 3-4: 1(is not moisture), with the synthetic narrow-necked earthen jar of latex solution input, again phenol resin solution is slowly dropped into synthetic narrow-necked earthen jar earlier, stir simultaneously, every narrow-necked earthen jar (200 kilograms) stirred 20 minutes, and reaction temperature is 20-40 ℃.3, solid contents is 24-26% in the mixed adhesive.Described impregnation process only needs the mixed adhesive that asbestos copper wire band dipping is above-mentioned once, and drying once gets final product.Identical with existing technology then, carry out integer, be wound in annular blank, hot pressing, grind moulding.
Advantage of the present invention is: 1, tackiness agent is material of main part with phenolic resin, can thoroughly eradicate the phenomenon of the tackiness agent easily generation bonding under high-temperature condition that in the past with rubber is material of main part.2, phenolic resin and rubber all replace original alcohol and gasoline to make solvent with water in the tackiness agent, have eliminated the unsafe factor in the former technology, guarantee production safety.3, with traditional repeatedly dipping, repeatedly drying process changes single-steeping into, and primary drying has reduced cost of raw and processed materials, has reduced energy consumption and man hour of labour, has reduced product cost significantly.
Fig. 1 is a process diagram of the present invention.
Fig. 2 is an asbestos copper wire band structure schematic representation of the present invention.
Embodiment: referring to Fig. 1, its mixed adhesive of friction piece of winding-type clutch of the present invention is synthetic by water soluble phenol resin and polychloroprene latex.Its preparation process's program is: with 80 kilograms of concentration is that 60% water soluble phenol resin adds 32 kilograms of dilutions of water, with 28 kilograms of concentration is that 40% polychloroprene latex adds 60 kilograms of dilutions of water (can adjust amount of water by the solid content requirement of tackiness agent), and the pH value of phenolic resin and polychloroprene latex is 10.5-12.5.With the synthetic narrow-necked earthen jar of polychloroprene latex solution input, slowly throw in phenol resin solution again in polychloroprene latex solution earlier, start stirrer simultaneously and stirred 20 minutes, the rotating speed of stirring wing is 40-60 rev/min, and reaction temperature is 20-40 ℃.Bulking agent is feldspar powder and blanc fixe, weighs each 10 kilograms of above feldspar powder of 200 orders and blanc fixes, puts into mixed adhesive liquid narrow-necked earthen jar, stirs and can use after 5 minutes, during use otherwise proceeding to stir prevents that powdered materials from precipitating with stopping.Asbestos copper wire band is immersed in the mixed adhesive liquid, soaks after 5 minutes and take out, the proper alignment drying, the content of solid mixed adhesive is 29-33% in the asbestos copper wire band of dry back.Then by tratitional technology with dried asbestos copper wire band with the moulding press integer, be wound in the cross section and be the annular blank of " V " shape, hot-forming with hydraulic press, grind into the friction plate of different size with emery wheel.Because the sectional shape of annular blank is " V " shape, interlock is good between asbestos copper wire belt and the layer, profile is smooth in order to make, so adopt the asbestos copper wire band that is woven into " people " font pattern shown in Figure 2 to do framework material,, improve Wrapping formed quality to strengthen its deformation performance.
Claims (2)
1, a kind of manufacture method of friction piece of winding-type clutch, comprise that with asbestos copper wire band be framework material, with phenolic resin and rubber is tackiness agent, after in tackiness agent, adding bulking agent, with the agent of asbestos copper wire band dip bonding, and drying, integer, be wound in annular blank, again through hot pressing with grind and make friction plate, it is characterized in that described tackiness agent is by phenolic resin and the synthetic mixed adhesive of oil-resisting and heat-resisting synthetic latex, its compound method is: 1, with water dilution phenolic resin and latex, the concentration that makes phenolic resin is between 40-50%, the concentration of latex is between 11-15%, and the pH value of phenol resin solution and latex solution is alkalescence, 2, the weight ratio of phenolic resin and latex is 3-4: 1 (not moisture), earlier with the synthetic narrow-necked earthen jar of latex solution input, again phenol resin solution is slowly dropped into synthetic narrow-necked earthen jar, stir simultaneously, every narrow-necked earthen jar (200 kilograms) stirred 20 minutes, reaction temperature is 20-40 ℃, 3, solid contents is 24-26% in the mixed adhesive, described impregnation process only needs the mixed adhesive that asbestos copper wire band dipping is above-mentioned once, and drying once.
2, the manufacture method of friction piece of winding-type clutch according to claim 1 is characterized in that the oil-resisting and heat-resisting synthetic latex in the described tackiness agent is a polychloroprene latex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105109 CN1015127B (en) | 1990-05-14 | 1990-05-14 | Method for making friction piece of winding-type clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105109 CN1015127B (en) | 1990-05-14 | 1990-05-14 | Method for making friction piece of winding-type clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046375A CN1046375A (en) | 1990-10-24 |
| CN1015127B true CN1015127B (en) | 1991-12-18 |
Family
ID=4878942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105109 Expired CN1015127B (en) | 1990-05-14 | 1990-05-14 | Method for making friction piece of winding-type clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015127B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008033540A1 (en) * | 2008-07-17 | 2010-01-21 | Hoerbiger Antriebstechnik Gmbh | Process for producing an organic and / or carbon-containing friction lining |
| CN102808877B (en) * | 2011-06-02 | 2015-07-15 | 金华艾拓自动化设备有限公司 | Method for combining wire weighing machine and winding machine |
-
1990
- 1990-05-14 CN CN 90105109 patent/CN1015127B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1046375A (en) | 1990-10-24 |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |