CN101412893B - Process for bonding rubber vulcanization type shock-proof crank pulley - Google Patents
Process for bonding rubber vulcanization type shock-proof crank pulley Download PDFInfo
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- CN101412893B CN101412893B CN2008101477027A CN200810147702A CN101412893B CN 101412893 B CN101412893 B CN 101412893B CN 2008101477027 A CN2008101477027 A CN 2008101477027A CN 200810147702 A CN200810147702 A CN 200810147702A CN 101412893 B CN101412893 B CN 101412893B
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Abstract
The invention discloses a process for bonding a rubber vulcanization type crank damping pulley. The process comprises the following main steps: (1) preparing a bonding agent solution according to weight proportion of RM-1 to ethanol being between 1 to 1 and 1 to 8; (2) degreasing, derusting and phosphorizing a workpiece to be bonded; (3) spraying the bonding agent on the workpiece to be bonded bya double coating route and a waterless spraying method; and (4) finishing rubber vulcanization task according to the prior rubber vulcanization process. With the process, the bonding strength can reach over 40 kilonewtons, the survival rate of rubber on the metal surface reaches over 60 percent, and the twisting moment is more than 290 Newton.meter, so that the torsional deformation amount of a crank of an engine is far less than 500 millidegrees. The process has the advantages of firm bonding, good high-temperature resisting property, good damping effect and good durability, and can prolong the service life of the pulley.
Description
Technical field
The invention belongs to the pulley sticking technology field, particularly a kind of bonding rubber vulcanization type shock-proof crank pulley agent technology.
Background technology
Rubber vulcanization type shock-proof crank pulley is the functional part that is contained in the engine crankshaft front end, and its major function is that engine crankshaft is played cushioning effect, is embodied in the windup-degree that reduces bent axle, and bent axle is played a protective role, and prolongs the time limit of service of bent axle.So it mainly is to lean on damping meson rubber that rubber vulcanization type shock-proof crank pulley can play cushioning effect to bent axle.Rubber must be bonding securely with the structure (ironcasting, medium carbon steel spare) of pulley, if bonding not firm, then shock-absorbing function lost efficacy.
The technique effect of evaluation rubber vulcanization type shock-proof crank pulley has following project: the bonding strength of (1), rubber and metal; (2), rubber is at the survival rate of metallic surface; (3), torque; (4), damping effect; (5), endurance quality.
At present, the bonding rubber vulcanization type shock-proof crank pulley technology generally adopts rubber vulcanization type, uses various dissimilar caking agents.Caking agent of a great variety, main caking agent has JQ-1, RM-1 or the like.Different caking agents, its method of use are also different usually, as:
JQ-1 (polymeric isocyanate glue); It is a kind of isocyanate group (compound NCO) that contains; Can with the number of chemical group (OH ,-H ,-NH2 or unsaturated materials) mutually the effect; Can make the object strong bond together whereby, be widely used in departments such as aviation machine, petrochemical complex, electric mechanical, communications and transportation, building, light industry.On workpiece, being coated with one time during use gets final product.
RM-1 rubber-metal cross-linked rubber stick: be a kind of pale yellow powder shape caking agent, be mainly used in that fourth is fine, the rubber of urethane, vinylformic acid material and metal bonding.Method of use: normally these article are dissolved in by a certain percentage and form adhesive solvent in the alcohol, place adhesive solvent dipping back to take out the metal sticking part of handling well, need after the solvent evaporates film forming under 145～150 ℃ of conditions, to solidify 20 minutes; It is bonding to accomplish sulfuration down at 150～170 ℃ again.
As these technique for sticking directly are used for process for bonding rubber vulcanization type shock-proof crank pulley, can not satisfy or reach the technological standard requirement of product, its major defect shows the following aspects:
(1), fatal problem is bonding not firm, cause the structure of pulley to be separated and come off;
The contriver finds that through long-term great deal of experimental after the continuous baking of 180 ℃ of high temperature was examined 24 hours, when executing axial force, its bonding strength needed more than 40KN, just can reach the bonding firm effect requirements of crank pulley;
Bonding not firm reason is a lot; Preceding workpiece oils, becoming rusty does not eliminate totally such as vulcanizing; Temperature, time, pressure do not reach standard-required during sulfuration, but main be caking agent do not select to or the technique for sticking method improper or out of control will cause bonding not firm, the technological standard requirement that does not reach product.
(2), resistance and high temperature resistance property poor when work (pulley top temperature can reach 80 ℃～100 ℃), can cause pulley rubber and caking agent aging, adhesive failure, product function inefficacy.
(3), damping effect is poor;
(4), the work-ing life of pulley is short.
Summary of the invention
The purpose of this invention is to provide a kind of new process for bonding rubber vulcanization type shock-proof crank pulley, use this kind technique for sticking after, have bonding firmly, characteristics such as good, the good damping effect of resistance to elevated temperatures, and can prolong work-ing life of pulley.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of process for bonding rubber vulcanization type shock-proof crank pulley comprises following key step:
(1), preparation adhesive solution:
Prepare raw material RM-1 and ethanol (this ethanol is meant that purity reaches the above industrial ethyl alcohol of 99% (volume ratio)) by RM-1: ethanol=1:1～1:8 (weight ratio), be mixed with adhesive solution in two days before use, be stirred well to sediment-free;
(2), chemical conversion is handled:
To treat bonding work pieces, mainly be that outer ring and axle sleeve or outer ring and the wheel hub etc. of treating bonding shock-proof crank pulley carry out chemical conversion and handle, and these are handled and mainly comprise degreasing, rust cleaning, phosphatization etc., and concrete treatment process can be following:
In alkaline defatting agent, carry out earlier oil removal treatment; About 90-150 of treatment time minute; Remove the workpiece surface greasy dirt fully, in the hydrochloric acid soln of the about 20%-50% of concentration, carry out processing of rust removing then, about 2-10 of treatment time minute; Remove the workpiece surface rusty stain fully, and then carry out bonderizing according to ordinary method; Metallic surface at workpiece forms phosphating protective film.
(3), spraying and adhesive bonding agent:
Adopt anhydrous spraying method treating spraying and adhesive bonding agent on the bonding work pieces,, improve the survival rate of rubber, strengthen damping effect etc., adopt following pair of coating route (promptly dividing twice) to spray in the metallic surface in order to reach required bonding strength:
Spray first pass, will be sprayed on the lip-deep adhesive film thickness of workpiece metal and be controlled in 0.005～0.0075mm scope 1., earlier; After spraying is accomplished, let the caking agent on workpiece metal surface at room temperature volatilize 10～40 minutes, toasted 10～40 minutes down at 120 ℃～180 ℃ then;
2., treat to cool off fully after, spray again second time, will be controlled in 0.01～0.015mm scope through the lip-deep adhesive film total thickness of workpiece metal after twice spraying; After spraying is accomplished, let the caking agent on workpiece metal surface at room temperature volatilize 10～40 minutes, toasted 10～40 minutes down at 120 ℃～180 ℃ then, accomplish spraying and adhesive bonding agent work.
The concrete grammar of spraying and adhesive bonding agent can adopt one of following two kinds of methods:
A, use pressurized gas are sprayed on workpiece surface with adhesive solution;
The way that b, use are brushed brushes adhesive solution at workpiece surface.
(4), the vulcanization of rubber:
After the spraying and adhesive bonding agent, immediately workpiece is carried out the vulcanization of rubber and handles, according to the rubber vulcanization process of routine, with vulcanizing mold with rubber extruded in the space of metal works, accomplish vulcanization of rubber work.
Compared with prior art, the invention has the beneficial effects as follows:
Adopt process for bonding rubber vulcanization type shock-proof crank pulley of the present invention, bonding strength can be much larger than 40KN, and the survival rate of rubber in the metallic surface reaches more than 60%, and torque can make the engine crankshaft twist deflection much smaller than 500 milli degree greater than 290N.m; Have bonding firmly, good, the good damping effect of resistance to elevated temperatures, excellent in durability can prolong work-ing life of pulley.
Embodiment
Below in conjunction with embodiment the present invention is made further detailed description.
But should this be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.
Embodiment 1
The present embodiment process for bonding rubber vulcanization type shock-proof crank pulley comprises following key step:
(1), preparation adhesive solution:
Press RM-1: ethanol=1:1～1:1 (weight ratio) prepares raw material RM-1 and ethanol, is mixed with adhesive solution, and is stirred well to sediment-free in two days before use;
(2), chemical conversion is handled:
To treat bonding work pieces, and comprise that mainly shock-proof crank pulley outer ring and axle sleeve or outer ring and wheel hub etc. will carry out chemical conversion and handle, and mainly comprise degreasing, rust cleaning, phosphatization etc., concrete treatment process can be following:
Earlier in alkaline defatting agent, carry out oil removal treatment, in about 90 minutes of treatment time, carry out flushing with clean water after the taking-up;, concentration carries out processing of rust removing in being 50% hydrochloric acid soln then; In about 2 minutes of treatment time, carry out flushing with clean water after the taking-up, and then carry out bonderizing according to ordinary method; Metallic surface at workpiece forms one deck phosphating protective film.
(3), spraying and adhesive bonding agent:
Use pressurized gas, adopt the method for anhydrous spraying that adhesive solution is sprayed on workpiece surface; During spraying, adopt following pair of coating route:
Spray first pass, will be sprayed on the lip-deep adhesive film thickness of workpiece metal and be controlled at about 0.0075mm 1., earlier; After spraying is accomplished, let the caking agent on workpiece metal surface volatilize at ambient temperature 10 minutes, under 180 ℃ of environment, toasted 10 minutes then;
2., treat to cool off fully after, spray again second time, will be controlled at about 0.015mm through the lip-deep adhesive film total thickness of workpiece metal after twice spraying; After spraying is accomplished, let the caking agent on workpiece metal surface volatilize at ambient temperature 10 minutes, under 180 ℃ of environment, toasted 10 minutes then;
(4), the vulcanization of rubber:
After the spraying and adhesive bonding agent, immediately workpiece is carried out the vulcanization of rubber and handles, with vulcanizing mold with rubber extruded in the space of metal works, accomplish vulcanization of rubber work.
Embodiment 2
The present embodiment process for bonding rubber vulcanization type shock-proof crank pulley comprises following key step:
(1), preparation adhesive solution:
Press RM-1: ethanol=1:1～1:4 (weight ratio) prepares raw material RM-1 and ethanol, is mixed with adhesive solution, and is stirred well to sediment-free in two days before use;
(2), chemical conversion is handled:
To treat bonding work pieces, and comprise that mainly shock-proof crank pulley outer ring and axle sleeve or outer ring and wheel hub etc. will carry out chemical conversion and handle, and mainly comprise degreasing, rust cleaning, phosphatization etc., concrete treatment process can be following:
In alkaline defatting agent, carry out earlier oil removal treatment; About 130 minutes of treatment time was carried out flushing with clean water after taking out;, concentration carries out processing of rust removing in being 30% hydrochloric acid soln then; Take out after about 5 minutes of treatment time and carry out flushing with clean water, and then carry out bonderizing, form one deck phosphating protective film in the metallic surface of workpiece according to ordinary method.
(3), spraying and adhesive bonding agent:
Adopt the method for spraying that adhesive solution is sprayed on workpiece surface; When spary is coated with, adopt following pair of coating route:
Spray first pass, will be sprayed on the lip-deep adhesive film thickness of workpiece metal and be controlled at about 0.0065mm 1., earlier; After spraying is accomplished, let the caking agent on workpiece metal surface at room temperature volatilize 20 minutes, under 150 ℃ of environment, toasted 20 minutes then;
2., treat to cool off fully after, spray again second time, will be controlled at about 0.015mm through the lip-deep adhesive film total thickness of workpiece metal after twice spraying; After spraying is accomplished, let the caking agent on workpiece metal surface at room temperature volatilize 20 minutes, under 150 ℃ of environment, toasted 20 minutes then;
(4), the vulcanization of rubber:
After the spraying and adhesive bonding agent, immediately workpiece is carried out the vulcanization of rubber and handles, with vulcanizing mold with rubber extruded in the space of metal works, accomplish vulcanization of rubber work.
Embodiment 3
The present embodiment process for bonding rubber vulcanization type shock-proof crank pulley comprises following key step:
(1), preparation adhesive solution:
Press RM-1: ethanol=1:1～1:8 (weight ratio) prepares raw material RM-1 and ethanol, is mixed with adhesive solution, and is stirred well to sediment-free in two days before use;
(2), chemical conversion is handled:
To treat bonding work pieces, and comprise that mainly shock-proof crank pulley outer ring and axle sleeve or outer ring and wheel hub etc. will carry out chemical conversion and handle, and mainly comprise degreasing, rust cleaning, phosphatization etc., concrete treatment process can be following:
In alkaline defatting agent, carry out earlier oil removal treatment; Take out after about 150 minutes of treatment time and use flushing with clean water; In concentration is 20% hydrochloric acid soln, carry out processing of rust removing then, in about 10 minutes of treatment time, take out the back and use flushing with clean water; And then carry out bonderizing according to the method for routine, form one deck phosphating protective film in the metallic surface of workpiece.
(3), spraying and adhesive bonding agent:
Adopt anhydrous spraying method that adhesive solution is sprayed on workpiece surface; During spraying, adopt following pair of coating route:
Spray first pass, will be sprayed on the lip-deep adhesive film thickness of workpiece metal and be controlled at about 0.005mm 1., earlier; After spraying is accomplished, let the caking agent on workpiece metal surface at room temperature volatilize 40 minutes, under 120 ℃ of environment, toasted 40 minutes then;
2., treat to cool off fully after, spray again second time, will be controlled at about 0.010mm through the lip-deep adhesive film total thickness of workpiece metal after twice spraying; After spraying is accomplished, let the caking agent on workpiece metal surface volatilize at ambient temperature 40 minutes, under 120 ℃ of environment, toasted 40 minutes then;
(4), the vulcanization of rubber:
After the spraying and adhesive bonding agent, immediately workpiece is carried out the vulcanization of rubber and handles,, with vulcanizing mold with rubber extruded in the space of metal works, accomplish vulcanization of rubber work.
The contriver has carried out performance tests such as bonding strength, rubber survival rate, torque, damping effect, weather resistance to adopting the foregoing description 1～3 technique for sticking gained shock-proof crank pulley assembly, and the gained result is as shown in the table:
Above-mentioned test result shows:
(1), the technique effect of embodiment 1～3 technique for sticking gained has met and exceeded the requirement of technical indicator fully.
(2), adopt the RM-1 caking agent, and adopt of the present invention pair of technologies such as coating, through the secondary volatilization, bonding very firm with ironcasting, medium carbon steel spare, rubber after twice baking-curing moulding, technique for sticking is reliable.
Claims (2)
1. process for bonding rubber vulcanization type shock-proof crank pulley comprises following key step:
(1), preparation adhesive solution:
Press RM-1 rubber-metal cross-linked rubber stick: ethanol weight ratio=1:1～1:8 prepares raw material RM-1 rubber-metal cross-linked rubber stick and ethanol, is mixed with adhesive solution in two days before use, is stirred well to sediment-free;
(2), chemical conversion is handled:
To treat that bonding work pieces carries out oil removal treatment earlier in alkaline defatting agent, and in hydrochloric acid soln, carry out processing of rust removing then, and then carry out bonderizing, form phosphating protective film in the metallic surface of workpiece according to ordinary method;
(3), spraying and adhesive bonding agent:
Adopt anhydrous spraying method treating spraying and adhesive bonding agent on the bonding work pieces, adopt following pair of coating route to spray:
Spray first pass, will be sprayed on the lip-deep adhesive film thickness of workpiece metal and be controlled in 0.005～0.0075mm scope 1., earlier; After spraying is accomplished, let the caking agent on workpiece metal surface volatilize at ambient temperature 10～40 minutes, toasted 10～40 minutes down at 120 ℃～180 ℃ then;
2., treat to cool off fully after, spray again second time, will be controlled in 0.01～0.015mm scope through the lip-deep adhesive film total thickness of workpiece metal after twice spraying; After spraying is accomplished, let the caking agent on workpiece metal surface volatilize at ambient temperature 10～40 minutes, toasted 10～40 minutes down at 120 ℃～180 ℃ then, accomplish spraying and adhesive bonding agent work;
(4), the vulcanization of rubber:
After the spraying and adhesive bonding agent, immediately workpiece is put into vulcanizing mold, with vulcanizing mold with rubber extruded in the space of metal works, accomplish vulcanization of rubber work.
2. process for bonding rubber vulcanization type shock-proof crank pulley according to claim 1 is characterized in that: the concrete grammar of described (3) step spraying and adhesive bonding agent is: adopt two coating process, use pressurized gas, adhesive solution is sprayed on workpiece surface.
3. process for bonding rubber vulcanization type shock-proof crank pulley according to claim 1; It is characterized in that: the concrete grammar of described (3) step spraying and adhesive bonding agent is: adopt two coating process, use the way of brushing that adhesive solution is brushed at workpiece surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101477027A CN101412893B (en) | 2008-11-28 | 2008-11-28 | Process for bonding rubber vulcanization type shock-proof crank pulley |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101477027A CN101412893B (en) | 2008-11-28 | 2008-11-28 | Process for bonding rubber vulcanization type shock-proof crank pulley |
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| CN101412893A CN101412893A (en) | 2009-04-22 |
| CN101412893B true CN101412893B (en) | 2012-02-01 |
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| CN101973127B (en) * | 2010-10-09 | 2012-12-05 | 青岛开世密封工业有限公司 | Method for bonding stainless steel metal framework and nitrile-butadiene rubber phase |
| CN103059747A (en) * | 2013-02-03 | 2013-04-24 | 梁建波 | Preparation method of metal surface inorganic binding surface layer |
| CN106367763A (en) * | 2016-08-28 | 2017-02-01 | 开平市中铝实业有限公司 | Surface treatment process of hub |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467390A (en) * | 2002-05-27 | 2004-01-14 | յ���ʽ���� | Device and method for bonding friction material of clutch pulley |
| EP1659160A1 (en) * | 2003-08-27 | 2006-05-24 | NOK Corporation | Primer for vulcanization bonding |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467390A (en) * | 2002-05-27 | 2004-01-14 | յ���ʽ���� | Device and method for bonding friction material of clutch pulley |
| EP1659160A1 (en) * | 2003-08-27 | 2006-05-24 | NOK Corporation | Primer for vulcanization bonding |
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Owner name: SICHUAN BASIDIKE NEW TECHNOLOGY DEVELOPMENT CO., L Free format text: FORMER NAME: SICHUAN BASIDIKE MACHINERY CO., LTD. |
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Address after: Meishan City, Sichuan Province, 620460 West Industrial Park Patentee after: SICHUAN BSDK NEW TECHNOLOGY DEVELOPMENT CO., LTD. Address before: Meishan City, Sichuan Province, 620460 West Industrial Park Patentee before: Sichuan Basidike Machinery Co., Ltd. |
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Granted publication date: 20120201 Termination date: 20171128 |