CN102621061A - Method for testing rubber bonding strength of automobile parts - Google Patents
Method for testing rubber bonding strength of automobile parts Download PDFInfo
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- CN102621061A CN102621061A CN2012100502795A CN201210050279A CN102621061A CN 102621061 A CN102621061 A CN 102621061A CN 2012100502795 A CN2012100502795 A CN 2012100502795A CN 201210050279 A CN201210050279 A CN 201210050279A CN 102621061 A CN102621061 A CN 102621061A
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Abstract
A method for testing rubber bonding strength of automobile parts relates to the technical field of rubber performance testing and includes: a. sawing a square with the area of 2*3 (cm<2>) on the lining surface of a tested object through a saw; b. polishing the lining surface of the sawed square to be rough through a file; c. preparing a long round steel rod and using a half-round file to polish the end face at one end of the round steel rod to be in an arc shape; d. coating A glue and B glue on the sawed square on the tested object; e. bonding the tested object with the round steel rod; f. installing the bonded tested object and the round steel rod on an upper jaw and a lower jaw of a tensile machine; g. starting the tensile machine and leading working staff to observe the pulling condition of rubber; h. closing an oil feeding valve of the tensile machine at the first time through the working staff when the rubber is pulled away from an inner tube of a lining so as to lead the upper jaw and the lower jaw of the tensile machine to be in a static state and recording the current tension; i. leading the working staff to calculate the stretched length of the rubber in the lining of the tested object according to testing results of the tensile machine; j. filling in testing results; and k. judging the results. The method for testing the rubber bonding strength of automobile parts is simple and easy to achieve, convenient to operate and accurate in measured data.
Description
Technical field
The present invention relates to the rubber performance technical field of measurement and test, be specifically related to a kind of auto parts and components rubber bonding strength method of testing.
Background technology
The rubber fields such as automobile, Aero-Space, oil exploitation that are applied to more and more widely; Deep development along with these fields; Its demand to rubber constantly increases, and is simultaneously, also more and more harsher to the performance requirement of rubber; Especially in fields such as space flight and aviation, extremely low investigations, the adhesive property between rubber and its stickup parts is had higher requirement.Because particular job environment of rubber; Rubber need have good oil resistant solvent resistance and in long-time, keep stable; And have the performance of certain stretch-proof, wear-resisting and tear-resistant intensity, and under cryogenic conditions, also want to keep better elastic for a long time.The intensity of rubber and the raising of mechanical property thereof are main relevant with result, reinforcement system, the vulcanizing system of rubber molecule.The oil resistance of rubber depends on the chemical property of rubber and oils.Oils chemicals porous with its swelling, makes the rubber distortion in the rubber, instability, and physical strength descends with other mechanical property thereupon.But for the method for testing too complex of rubber bonding strength, measure inaccurately in the prior art, particularly, all do not have good measuring method all the time, can't guarantee the stability of product the measurement of rubber bushing bonding strength.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of simple, high auto parts and components rubber bonding strength method of testing of measurement accuracy of testing.
Technical matters to be solved by this invention adopts following technical scheme to realize:
Auto parts and components rubber bonding strength method of testing, it is characterized in that: described method of testing comprises following method step:
1, selects rubber bushing as measured object, use saw blade, saw out an about 2X3 (CM of area on testee " lining " surface
2) square, the degree of depth of sawing should be that saw blade cuts till " lining " interior tube-surface position;
2, coarse " lining " surface finish with file on the square behind the quilt saw, its purpose one is to remove the rubbish on " lining " surface; The 2nd, for next step viscose glue is made equipment, improve the cohesive force of glue on " lining " surface;
3, prepare a round steel that long 100-120MM is long, diameter is about 20-30MM, and is rasped to circular shape to end face at an end of round steel with half-round file, and the size of circular arc should be selected according to the circular arc size on measured object " lining " surface;
4, be ready to the round steel of testee and band circle; On the square that testee has been sawed, coat A, B glue; The ratio of glue must 1: 1, and what of glue should be decided according to the square size, and glue must fully be transferred all; Be put into the round steel of band circular arc gently on the square then, testee and round steel are bonded together under the effect of glue;
5, after measured object and round steel glue arrive together, must quietly put 40-70 minute (annotate: the Various Seasonal time is all different, and the shortest time can not be lower than 40 minutes), let glue play one's part to the full;
6, on the bit that measured object after good and round steel are contained in puller system with glue, get rid of the gap, and observe the scale of puller system high scale pointer indication this moment, and note this scale;
7, opening pull force machine makes it get into duty, and speed control is between 20-30KN/S, and the rubber in measured object this moment " lining " is by pulling at leisure, and the staff must conscientiously observe the situation that rubber is pulled;
8, when finding that rubber is pulled out and manage " lining " in; The staff must close puller system and send fuel tap in the very first time; Make the puller system bit all keep stationary state, the scale of indication when staff's palpus observation this moment puller system high scale pointer stops, and note this scale; Simultaneously conscientiously read the pulling force that is shown on the puller system display screen, and note the pulling force of this moment;
9, staff's fibrous root calculates the length that rubber is stretched in the measured object " lining " according to the result of puller system test, and the scale value after just stretching deducts the scale value before stretching, and with conscientious together the inserting in the report of pulling force;
10, fill in test result, the result representes with five kinds of data: F, L, S, P, Kt, wherein
F (numerical value that the puller system display screen is shown);
L (scale value after puller system stretches deducts the scale value before stretching);
S (area of the measured object surface square of sawing);
P=F/S (pulling force is divided by the resulting value of square area);
Kt=(T+L)/T (clean rubber thickness T adds that tensile elongation L is again divided by the value of clean rubber thickness T between measured object outer tube and the interior pipe);
11, result of determination: whether at first observe rubber and inner and outer pipes and cement, first kind of situation: rubber, see the 4th P value again if cementing, and when P value >=1, decidable is qualified, if P value＜1 o'clock, decidable is defective; Second kind of situation: rubber does not cement, and this must be observed unstuck area what are, if area is little, and Kt value >=2.5, decidable is qualified.(annotate: the Kt value is big more, explains that then the elasticity of rubber is good more).
The invention has the beneficial effects as follows: method of testing of the present invention is simple, and is easy to operate, and measurement data is accurate, can test out the bonding strength of rubber, and is fit to the measurement of various auto parts and components rubber bonding strengths.
Description of drawings
Fig. 1 is a measured object structural drawing in the embodiment of the invention;
Fig. 2 is a decision flowchart as a result in the embodiment of the invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment and diagram, further set forth the present invention.
Auto parts and components rubber bonding strength method of testing,
1, selects rubber bushing as measured object, use saw blade, saw out an about 2X3 (CM of area on testee " lining " surface
2) square, the degree of depth of sawing should be that saw blade cuts till " lining " interior tube-surface position;
2, coarse " lining " surface finish with file on the square behind the quilt saw, its purpose one is to remove the rubbish on " lining " surface; The 2nd, for next step viscose glue is made equipment, improve the cohesive force of glue on " lining " surface;
3, prepare a round steel that long 100-120MM is long, diameter is about 20-30MM, and is rasped to circular shape to end face at an end of round steel with half-round file, and the size of circular arc should be selected according to the circular arc size on measured object " lining " surface;
4, be ready to the round steel of testee and band circle; On the square that testee has been sawed, coat A, B glue; The ratio of glue must 1: 1, and what of glue should be decided according to the square size, and glue must fully be transferred all; Be put into the round steel of band circular arc gently on the square then, testee and round steel are bonded together under the effect of glue;
5, after measured object and round steel glue arrive together, must quietly put (annotate: the Various Seasonal time is all different, and the shortest time can not be lower than 40 minutes) about 1 hour, let glue play one's part to the full;
6, on the bit that measured object after good and round steel are contained in puller system with glue, get rid of the gap, and observe the scale of puller system high scale pointer indication this moment, and note this scale;
7, opening pull force machine makes it get into duty, and speed control is between 20-30KN/S, and the rubber in measured object this moment " lining " is by pulling at leisure, and the staff must conscientiously observe the situation that rubber is pulled;
8, when finding that rubber is pulled out and manage " lining " in; The staff must close puller system and send fuel tap in the very first time; Make the puller system bit all keep stationary state, the scale of indication when staff's palpus observation this moment puller system high scale pointer stops, and note this scale; Simultaneously conscientiously read the pulling force that is shown on the puller system display screen, and note the pulling force of this moment;
9, staff's fibrous root calculates the length that rubber is stretched in the measured object " lining " according to the result of puller system test, and the scale value after just stretching deducts the scale value before stretching, and with conscientious together the inserting in the report of pulling force;
10, fill in test result, the result representes with five kinds of data: F, L, S, P, Kt, wherein
F (numerical value that the puller system display screen is shown);
L (scale value after puller system stretches deducts the scale value before stretching);
S (area of the measured object surface square of sawing);
P=F/S (pulling force is divided by the resulting value of square area), as shown in Figure 1, the clean thickness T of rubber=(D-d)/2;
Kt=(T+L)/T (clean rubber thickness T adds that tensile elongation L is again divided by the value of clean rubber thickness T between measured object outer tube and the interior pipe);
11, result of determination: as shown in Figure 2, at first to observe rubber and inner and outer pipes and whether cement, first kind of situation: rubber cements, and sees the 4th P value again, and when P value >=1, decidable is qualified, if P value＜1 o'clock, decidable is defective; Second kind of situation: rubber does not cement, and this must be observed unstuck area what are, if area is little, and Kt value >=2.5, decidable is qualified.(annotate: the Kt value is big more, explains that then the elasticity of rubber is good more).
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (1)
1. auto parts and components rubber bonding strength method of testing, it is characterized in that: described method of testing comprises following method step:
A, selection rubber bushing are used saw blade as measured object on testee " lining " surface, saw out an about 2X3 (CM of area
2) square, the degree of depth of sawing should be that saw blade cuts till " lining " interior tube-surface position;
B, coarse with file on the square behind the quilt saw " lining " surface finish, its purpose one is to remove the rubbish on " lining " surface; The 2nd, for next step viscose glue is made equipment, improve the cohesive force of glue on " lining " surface;
C, long round steel of long 100-120MM of preparation, diameter is about 20-30MM, and is rasped to circular shape to end face at an end of round steel with half-round file, the size of circular arc should be selected according to the circular arc size on measured object " lining " surface;
D, be ready to the round steel of testee and band circle; On the square that testee has been sawed, coat A, B glue; The ratio of glue must 1: 1, and what of glue should be decided according to the square size, and glue must fully be transferred all; Be put into the round steel of band circular arc gently on the square then, testee and round steel are bonded together under the effect of glue;
After e, measured object and round steel glue arrived together, quiet the putting 40-70 minute of palpus let glue play one's part to the full;
On the bit that f, the measured object with glue after good and round steel are contained in puller system, get rid of the gap, and observe the scale of puller system high scale pointer indication this moment, and note this scale;
G, opening pull force machine make it get into duty, and speed control is between 20-30KN/S, and the rubber in measured object this moment " lining " is by pulling at leisure, and the staff must conscientiously observe the situation that rubber is pulled;
H, when finding that rubber is pulled out and manage " lining " in; The staff must close puller system and send fuel tap in the very first time; Make the puller system bit all keep stationary state, the scale of indication when staff's palpus observation this moment puller system high scale pointer stops, and note this scale; Simultaneously conscientiously read the pulling force that is shown on the puller system display screen, and note the pulling force of this moment;
I, staff's fibrous root calculate the length that rubber is stretched in the measured object " lining " according to the result of puller system test, and the scale value after just stretching deducts the scale value before stretching, and with conscientious together the inserting in the report of pulling force;
J, fill in test result, the result representes with five kinds of data: F, L, S, P, Kt, wherein
F (numerical value that the puller system display screen is shown);
L (scale value after puller system stretches deducts the scale value before stretching);
S (area of the measured object surface square of sawing);
P=F/S (pulling force is divided by the resulting value of square area);
Kt=(T+L)/T (clean rubber thickness T adds that tensile elongation L is again divided by the value of clean rubber thickness T between measured object outer tube and the interior pipe);
K, result of determination: whether at first observe rubber and inner and outer pipes and cement, first kind of situation: rubber, see the 4th P value again if cementing, and when P value >=1, decidable is qualified, if P value＜1 o'clock, decidable is defective; Second kind of situation: rubber does not cement, and this must be observed unstuck area what are, if area is little, and Kt value >=2.5, decidable is qualified.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100502795A CN102621061A (en) | 2012-02-24 | 2012-02-24 | Method for testing rubber bonding strength of automobile parts |
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|---|---|---|---|
| CN2012100502795A CN102621061A (en) | 2012-02-24 | 2012-02-24 | Method for testing rubber bonding strength of automobile parts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743671A (en) * | 2014-01-13 | 2014-04-23 | 吉林大学 | Bonding strength checking method for vehicle adhesive |
| CN103808649A (en) * | 2012-11-06 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Lifting-holding testing device |
-
2012
- 2012-02-24 CN CN2012100502795A patent/CN102621061A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808649A (en) * | 2012-11-06 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Lifting-holding testing device |
| CN103743671A (en) * | 2014-01-13 | 2014-04-23 | 吉林大学 | Bonding strength checking method for vehicle adhesive |
| CN103743671B (en) * | 2014-01-13 | 2015-04-15 | 吉林大学 | Bonding strength checking method for vehicle adhesive |
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Application publication date: 20120801 |