CN102305255A - Paper-based friction plate and manufacturing method thereof - Google Patents
Paper-based friction plate and manufacturing method thereof Download PDFInfo
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- CN102305255A CN102305255A CN201010596920A CN201010596920A CN102305255A CN 102305255 A CN102305255 A CN 102305255A CN 201010596920 A CN201010596920 A CN 201010596920A CN 201010596920 A CN201010596920 A CN 201010596920A CN 102305255 A CN102305255 A CN 102305255A
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Abstract
The invention discloses a paper-based friction plate and a manufacturing method thereof. A coating material of the paper-based friction plate is prepared by taking fibers as a skeleton, resin as a matrix, various oxides and graphite as fillings and organic friction powder and rubber as a regulator through processes of pulping, papermaking, drying, dipping in the resin, curing, laminating on a steel core plate, performing heat treatment and machining. In the production process for the paper-based friction plate, the conventional curing treatment and bonding aftertreatment are combined into 'curing treatment', so the quality and yield of products are improved, and energy consumption is reduced.
Description
Technical field
The present invention relates to a kind of paper-base friction wafer and preparation method thereof, particularly a kind of paper-base friction wafer machine preparation method who is used for clutch, gearbox.
Background technique
Paper-base friction wafer is meant that many materials of the homogeneous body paper that utilizes wet papermaking process to produce is base material; Prepare friction plate through cross cutting, dipping, superimposed hot press molding method, said paper-base friction wafer is widely used in mechanical clutch such as engineering machinery, farm machinery, mining machinery, heavy-duty car, car and boats and ships and the braking system in order to transmitting torque, deceleration and braking.
Past, the powder metallurgy copper-base friction plate of domestic main employing exist the coefficient of kinetic friction low, moving/shortcoming that static friction coefficient ratio is big; And introduce traditional paper friction material; It mainly adopts asbestos as the reinforcing fiber matrix, but asbestos fiber can cause diseases such as asbestosis, mesothelioma of pleura, is not inconsistent with the environmental protection developing direction of following friction plate; Therefore, the research and development of paper-base friction wafer are arisen at the historic moment.
At present,, on the one hand be primarily aimed at the friction plate paper substrate abroad and study to the research of paper-base friction wafer, for example: the aramid fibre that is that uses in the U. S. Patent 552966 and the blend fiber of cotton fiber make paper substrate; Use the blend fiber of aramid fiber and cellulose fiber to make paper substrate in the Japan Patent 1040700; Adopt Novolac resin (a kind of phenolic resin) and silicone resin as Bond in the U. S. Patent 5529666; In the U. S. Patent 4256801, on filler and modifier, added synusia shape graphite and done.On the other hand; Preparation process to friction plate is improved; For example: Chinese patent 03114475.6 discloses a kind of carbon fiber reinforced paper base frication material and preparation method thereof, and the main feature of this method is the recycling through leftover pieces, and cost of production is reduced; U. S. Patent 6060536 has been introduced the method for making basic unit and friction layer and synthetic paper base frication material with paper machine respectively.
Summary of the invention
In view of this; One of the object of the invention is to provide a kind of paper-base friction wafer; Can overcome the deficiency of powder metallurgy copper-base friction plate; Have the strong characteristics of steady, shockproof absorption energy; And have good stability; Can be used for various shaggy mating plate clutches, have environmental protection, friction factor high, combine characteristics such as steady, high temperature resistant, oil resistant, life-span be long; Said paper-base friction wafer material comprises reinforcing fiber, frictional property regulator, filler, friction material body paper strengthening agent and binder.
Further, comprise by mass percentage: reinforcing fiber 39%～70%, frictional property regulator 8%～17%, filler 4%～13%, friction material body paper strengthening agent 2%～15%, binder 8%～35%;
Further, said reinforcing fiber is bamboo pulp plate fiber, carbon fiber, rockwool coating resin fiber and aramid fibre;
Further, said frictional property regulator is friction powder, graphite and aluminium oxide;
Further, said filler is barium sulphate and silica;
Further, said friction material body paper strengthening agent is a cashew nut oil modified alkyd resin;
Further, said binder is a phenol-formaldehyde resin modified.
Said friction plate adopts superior in quality multiple paper pulp fiber and high-performance fiber to replace asbestos fiber, guarantees the feature of environmental protection of product processing and using process; The cashew nut oil modified alkyd resin that has adopted special modification is a basic raw material; Guarantee that through strengthening molecular weight product the heat resistance of product and heat resistance improve performance of products, adopt the nano level frictional property regulator of part to improve the abrasion of product and the abrasion of mating plate.
Two of the object of the invention is to provide the preparation method of said paper-base friction wafer, can reach through following steps:
101: get the reinforcing fiber making beating, beating consistency is 1%～4%, and beating degree is 25～50SR, adds frictional property regulator, filler and friction material body paper strengthening agent then, gets the slurrying product;
102: after said slurrying product was manufactured paper with pulp by conventional paper technology, behind squeezing process, drying was processed base board;
103: in degree of vacuum is that 0.04～0.06MPa, temperature are under 70～90 ℃ the condition said base board to be carried out drying, dried paperboard;
104: above-mentioned dried paperboard stamping-out is become ring plate, in binder, flood 20～30 minutes after, in 90～110 ℃ dry 0.5～1.5 hour down, the impregnation cardboard;
105: above-mentioned impregnation cardboard after 170～200 ℃ of following heats of solidification are handled 1.5～2.5 hours, is made the friction ring plate, be bonded on the steel core plate through cold stamping again, get the paper-base friction wafer product.
Further; Comprise by mass percentage: bamboo pulp plate fiber 30%～50%, carbon fiber 5%～7%, rockwool coating resin fiber 2～8%, aramid fibre 2～5%, friction powder 2%～4%, graphite 5%～10%, aluminium oxide 1%～3%, barium sulphate 2%～8%, silica 2%～5%, cashew nut oil modified alkyd resin 2%～15% and phenol-formaldehyde resin modified 8%～35%;
Further, in the step 102, the pressure of said squeezing process is 0.1～0.2MPa, and the time is 3～5min.
General conventional paper based friction plate preparation method (Fig. 1) is for resin pickup after the papermaking, at curing oven, brush coating, bonding, and operation is long, needs the entering baking oven twice, the lot of consumption energy.And the solidifying temperature of general paper base material resin is 150～180 degree; Time is 2 hours; Bonding solidifying temperature is 160～185 degree; Time is 1～2 hour; Through choose reasonable temperature and time scope, above-mentioned two procedures is merged into a step, when bonding, material friction material when bonding is solidified simultaneously through adjustment bonding and thermal insulation time and holding temperature; Not only make macromolecule prescription paper base material combine more firmly, more make the macromolecular material interior tissue more even with the lining liner plate; The product impregnation is solidified the back stamping-out change impregnation behind the stamping-out into, the pulping papermaking again of unnecessary cardboard, the paper pulp utilization ratio becomes present 80% by former 40%, save material greatly, reduces the product waste material and produces.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment invention is further described.
Fig. 1 makes flow chart for prior art.
Fig. 2 is the preparation process flow chart of preferred embodiment of the present invention.
Embodiment
Fig. 1 makes flow chart for prior art; Fig. 2 is the preparation process flow chart of preferred embodiment of the present invention.
Said paper-base friction wafer material comprises reinforcing fiber, frictional property regulator, filler, friction material body paper strengthening agent and binder; Comprise by mass percentage: reinforcing fiber 39%～70%, frictional property regulator 8%～17%, filler 4%～13%, friction material body paper strengthening agent 2%～15%, binder 8%～35%; Further, said reinforcing fiber is bamboo pulp plate fiber, carbon fiber, rockwool coating resin fiber and aramid fibre; Said frictional property regulator is friction powder, graphite and aluminium oxide; Said filler is barium sulphate and silica; Said friction material body paper strengthening agent is a cashew nut oil modified alkyd resin; Said binder is a phenol-formaldehyde resin modified.
Experimental procedure:
101: get the reinforcing fiber making beating, beating consistency is 1%～4%, and beating degree is 25～50SR, adds frictional property regulator, filler and friction material body paper strengthening agent then, gets the slurrying product;
102: after said slurrying product was manufactured paper with pulp by conventional paper technology, behind squeezing process, drying was processed base board;
103: in degree of vacuum is that 0.04～0.06MPa, temperature are under 70～90 ℃ the condition said base board to be carried out drying, dried paperboard;
104: above-mentioned dried paperboard stamping-out is become ring plate, in binder, flood 20～30 minutes after, in 90～110 ℃ dry 0.5～1.5 hour down, the impregnation cardboard;
105: above-mentioned impregnation cardboard after 170～200 ℃ of following heats of solidification are handled 1.5～2.5 hours, is made the friction ring plate, be bonded on the steel core plate through cold stamping again, get the paper-base friction wafer product.
Embodiment 1
Said paper-base friction wafer composition of raw materials takes off table:
Table 1 embodiment 1 prescription (unit: %)
In implementation process, the experiment parameter of each step takes off the table data:
Table 2 embodiment 1 experiment parameter
Embodiment 2
Said paper-base friction wafer composition of raw materials takes off table:
Table 3 embodiment 2 prescription (units: %)
In implementation process, the experiment parameter of each step takes off the table data:
Table 4 embodiment 2 experiment parameters
Embodiment 3
Said paper-base friction wafer composition of raw materials takes off table:
Table 5 embodiment 3 prescription (units: %)
In implementation process, the experiment parameter of each step takes off the table data:
Table 6 embodiment 3 experiment parameters
Embodiment 4
Said paper-base friction wafer composition of raw materials takes off table:
Table 7 embodiment 4 prescription (units: %)
In implementation process, the experiment parameter of each step takes off the table data:
Table 8 embodiment 4 experiment parameters
Embodiment 5
Said paper-base friction wafer composition of raw materials takes off table:
Table 9 embodiment 5 prescription (units: %)
In implementation process, the experiment parameter of each step takes off the table data:
Table 10 embodiment 5 experiment parameters
Embodiment 6
Said paper-base friction wafer composition of raw materials takes off table:
Table 11 embodiment 6 prescription (units: %)
In implementation process, the experiment parameter of each step takes off the table data:
Table 12 embodiment 6 experiment parameters
Embodiment 7
Said paper-base friction wafer composition of raw materials takes off table:
Table 13 embodiment 7 prescription (units: %)
In implementation process, the experiment parameter of each step takes off the table data:
Table 14 embodiment 7 experiment parameters
Arbitrary extracting embodiment 1～7 described paper-base friction wafer carries out the frictional behaviour contrast with 4 kinds of friction plates of other manufacturers produce on the market, uses instrument to be the Wet-type friction material testing machine, and said frictional behaviour comparative trial is:
1, said paper-base friction wafer (YH) and other 4 kinds of paper-base friction wafers (FCC, WC, TS and LF) are 90 ℃ and 140 ℃ in temperature and carry out conventional sense, and friction time is 20 minutes;
2, the break-in of under temperature is 140 ℃, the pressure of 0.15Mpa, pressurizeing of said paper-base friction wafer (YH) and other 4 kinds of paper-base friction wafers (FCC, WC, TS and LF) detects, and friction time is 20 minutes;
3, said paper-base friction wafer (YH) carries out conventional sense with other 3 kinds of cork-rubber based friction plates (FH, FBC and FBB) at 90 ℃ and 140 ℃, and friction time is 20 minutes;
4, said paper-base friction wafer (YH) and other 3 kinds of cork-rubber based friction plates (FH, FBC and FBB) break-in comparative trial of under 140 ℃, the pressure of 0.15Mpa, pressurizeing, friction time is 20 minutes.
The result of said frictional behaviour comparative trial is as shown in the table:
Table 15 performance comparison test 1
Table 16 performance comparison test 2
Table 17 performance comparison test 3
Table 18 performance comparison test 4
Data through table 15 and table 16 can know that paper-base friction wafer static and dynamic friction coefficient according to the invention is with product is approaching basically both at home and abroad, and heat fade is little; Data through table 17 and table 18 can be known; Paper-base friction wafer according to the invention is compared with the cork-rubber based friction plate of other producers; The paper-base friction wafer rate subtracts forr a short time than cork-rubber base before and after the hot running-in, and particularly under hot machine situation, frictional behaviour is obvious more stable than rubber-based.
A kind of paper-base friction wafer according to the invention has the strong characteristics of steady, shockproof absorption energy; And have good stability; Can be used for various shaggy mating plate clutches, have environmental protection, friction factor high, combine characteristics such as steady, high temperature resistant, oil resistant, life-span be long.
Claims (10)
1. a paper-base friction wafer material is characterized in that: comprise reinforcing fiber, frictional property regulator, filler, friction material body paper strengthening agent and binder.
2. paper-base friction wafer material according to claim 1 is characterized in that: comprise by mass percentage: reinforcing fiber 39%～70%, frictional property regulator 8%～17%, filler 4%～13%, friction material body paper strengthening agent 2%～15%, binder 8%～35%.
3. paper-base friction wafer material according to claim 1 and 2 is characterized in that: said reinforcing fiber is bamboo pulp plate fiber, carbon fiber, rockwool coating resin fiber and aramid fibre.
4. paper-base friction wafer material according to claim 1 and 2 is characterized in that: said frictional property regulator is friction powder, graphite and aluminium oxide.
5. paper-base friction wafer material according to claim 1 and 2 is characterized in that: said filler is barium sulphate and silica.
6. paper-base friction wafer material according to claim 1 and 2 is characterized in that: said friction material body paper strengthening agent is a cashew nut oil modified alkyd resin.
7. paper-base friction wafer material according to claim 1 and 2 is characterized in that: said binder is a phenol-formaldehyde resin modified.
8. the described paper-base friction wafer preparation methods of claim 1 is characterized in that:
101: get the reinforcing fiber making beating, beating consistency is 1%～4%, and beating degree is 25～50SR, adds frictional property regulator, filler and friction material body paper strengthening agent then, gets the slurrying product;
102: after said slurrying product was manufactured paper with pulp by conventional paper technology, behind squeezing process, drying was processed base board;
103: in degree of vacuum is that 0.04～0.06MPa, temperature are under 70～90 ℃ the condition said base board to be carried out drying, dried paperboard;
104: above-mentioned dried paperboard stamping-out is become ring plate, in binder, flood 20～30 minutes after, in 90～110 ℃ dry 0.5～1.5 hour down, the impregnation cardboard;
105: above-mentioned impregnation cardboard after 170～200 ℃ of following heats of solidification are handled 1.5～2.5 hours, is made the friction ring plate, be bonded on the steel core plate through cold stamping again, get the paper-base friction wafer product.
9. said according to Claim 8 paper-base friction wafer preparation methods; It is characterized in that: comprise by mass percentage: bamboo pulp plate fiber 30%～50%, carbon fiber 5%～7%, rockwool coating resin fiber 2～8%, aramid fibre 2～5%, friction powder 2%～4%, graphite 5%～10%, aluminium oxide 1%～3%, barium sulphate 2%～8%, silica 2%～5%, cashew nut oil modified alkyd resin 2%～15% and phenol-formaldehyde resin modified 8%～35%.
10. according to Claim 8 or 9 said paper-base friction wafer preparation methods, it is characterized in that: in the step 102, the pressure of said squeezing process is 0.1～0.2MPa, and the time is 3～5min.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599635A (en) * | 2012-03-10 | 2012-07-25 | 广东中烟工业有限责任公司 | Preparation method of tobacco sheet from cabo and tobacco waste |
| CN102599636A (en) * | 2012-03-10 | 2012-07-25 | 广东中烟工业有限责任公司 | Preparation method of reconstituted tobacco from tobacco stem and tobacco powder |
| CN103498388A (en) * | 2013-09-25 | 2014-01-08 | 陕西科技大学 | Paper base friction material with high static friction coefficient and preparation method thereof |
| CN104818648A (en) * | 2015-04-09 | 2015-08-05 | 陕西科技大学 | Method for prepared paper-based friction material modified by using manganese dioxide |
| CN106286657A (en) * | 2016-11-10 | 2017-01-04 | 无锡市明盛强力风机有限公司 | Brake liner blade technolgy is prepared in a kind of 3D printing |
| CN107922666A (en) * | 2015-08-24 | 2018-04-17 | 摩根先进材料与技术公司 | The preparation of article including graphite particle |
| CN109218554A (en) * | 2017-06-29 | 2019-01-15 | 兄弟工业株式会社 | Hinge means and image forming apparatus |
| CN110118234A (en) * | 2019-03-28 | 2019-08-13 | 南通万达摩擦材料有限公司 | A kind of flexibility oil resistant paper-base friction wafer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04198227A (en) * | 1990-11-26 | 1992-07-17 | Ibiden Co Ltd | Production of wet friction material |
| CN1446875A (en) * | 2003-01-28 | 2003-10-08 | 西北工业大学 | Paper based friction material with carbon fibers enhanced and its preparation method |
-
2010
- 2010-12-17 CN CN201010596920A patent/CN102305255A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04198227A (en) * | 1990-11-26 | 1992-07-17 | Ibiden Co Ltd | Production of wet friction material |
| CN1446875A (en) * | 2003-01-28 | 2003-10-08 | 西北工业大学 | Paper based friction material with carbon fibers enhanced and its preparation method |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599636A (en) * | 2012-03-10 | 2012-07-25 | 广东中烟工业有限责任公司 | Preparation method of reconstituted tobacco from tobacco stem and tobacco powder |
| CN102599635B (en) * | 2012-03-10 | 2014-09-10 | 广东中烟工业有限责任公司 | Preparation method of tobacco sheet from cabo and tobacco waste |
| CN102599635A (en) * | 2012-03-10 | 2012-07-25 | 广东中烟工业有限责任公司 | Preparation method of tobacco sheet from cabo and tobacco waste |
| CN103498388A (en) * | 2013-09-25 | 2014-01-08 | 陕西科技大学 | Paper base friction material with high static friction coefficient and preparation method thereof |
| CN103498388B (en) * | 2013-09-25 | 2016-04-06 | 陕西科技大学 | A kind of high confficient of static friction paper friction material and preparation method thereof |
| CN104818648A (en) * | 2015-04-09 | 2015-08-05 | 陕西科技大学 | Method for prepared paper-based friction material modified by using manganese dioxide |
| CN104818648B (en) * | 2015-04-09 | 2017-03-15 | 陕西科技大学 | The method that a kind of modified carbon fiber of utilization manganese dioxide prepares paper friction material |
| CN107922666B (en) * | 2015-08-24 | 2020-07-17 | 摩根先进材料与技术公司 | Preparation of articles comprising graphite particles |
| CN107922666A (en) * | 2015-08-24 | 2018-04-17 | 摩根先进材料与技术公司 | The preparation of article including graphite particle |
| CN106286657A (en) * | 2016-11-10 | 2017-01-04 | 无锡市明盛强力风机有限公司 | Brake liner blade technolgy is prepared in a kind of 3D printing |
| CN109218554A (en) * | 2017-06-29 | 2019-01-15 | 兄弟工业株式会社 | Hinge means and image forming apparatus |
| CN109218554B (en) * | 2017-06-29 | 2022-05-13 | 兄弟工业株式会社 | Hinge device and image forming apparatus |
| CN110118234A (en) * | 2019-03-28 | 2019-08-13 | 南通万达摩擦材料有限公司 | A kind of flexibility oil resistant paper-base friction wafer and preparation method thereof |
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Application publication date: 20120104 |