CN113815170B - Bonding process of automobile vibration damper - Google Patents
Bonding process of automobile vibration damper Download PDFInfo
- Publication number
- CN113815170B CN113815170B CN202110960289.1A CN202110960289A CN113815170B CN 113815170 B CN113815170 B CN 113815170B CN 202110960289 A CN202110960289 A CN 202110960289A CN 113815170 B CN113815170 B CN 113815170B
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- framework
- vibration damper
- annular body
- glue
- rubber
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/721—Vibration dampening equipment, e.g. shock absorbers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an adhesion process of an automobile vibration damper, which comprises a framework and a rubber piece, wherein the framework is a plastic piece, the rubber piece is made of silicon rubber, the rubber piece is adhered to the framework, and the adhesion method between the rubber piece and the framework comprises the following steps: firstly, preprocessing a framework; (2) Immersing the pretreated framework into a glue pool completely, and taking out and drying; (3) Placing the dried framework into a mould, then beating silicon rubber slurry, and vacuumizing the mould; (4) putting the mould into a drying tunnel for vulcanization; (5) And trimming the vulcanized vibration damper. Before bonding, the framework is pretreated, impurities on the surface of the framework can be effectively removed, after bonding and vulcanization, no bubble problem exists between the framework and the rubber piece, and the service life of the automobile vibration damper is effectively ensured.
Description
Technical Field
The invention relates to the field of automobile manufacturing, in particular to an adhesion process of an automobile vibration damper.
Background
With the great force of highway construction and improvement of automobile steering performance, the running speed of the automobile is faster and faster, and particularly, due to the rapid increase of the automobile possession, traffic is more and more crowded, so that accidents are more frequent, and in order to reduce the damage to the driver caused by huge inertia force when the automobile collides with the front, an airbag system is generally arranged in the center of a steering wheel at the front end of the driver. The vibration damper is generally used in a middle-high-grade vehicle type for connecting the gas generator and the air bag bracket, and when the vehicle collides with the front surface, the rubber part of the vibration damping block of the gas generator in the air bag module can effectively buffer the recoil force generated when the gas generator is exploded, and meanwhile, the part also plays roles in damping and noise reduction during normal running, so that the stability and the comfort of the vehicle are improved.
The traditional vibration damper is formed by bonding a plastic framework and a rubber piece, however, at present, after bonding and vulcanization, a plurality of bubbles exist between the plastic framework and the rubber piece, and the service life of the vibration damper is influenced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide an adhesion process of an automobile vibration damper, which can well solve the problem of bubbles after the plastic framework is adhered to the rubber part.
In order to achieve the above object, the invention provides an adhesion process of an automobile vibration damper, the automobile vibration damper comprises a framework and a rubber piece, the framework is a plastic piece, the framework comprises a first annular body and a second annular body, the first annular body and the second annular body are coaxially arranged, the second annular body is integrally connected with the lower end of the first annular body, the rubber piece is made of silicone rubber, the rubber piece is adhered to the inner peripheral wall of the first annular body and the upper end surface of the second annular body, and the adhesion process between the framework and the rubber piece comprises the following steps:
(1) Firstly, preprocessing a framework;
(2) Immersing the pretreated framework into a glue pool completely, and taking out and drying;
(3) Placing the dried framework into a mould, then beating silicon rubber slurry, and vacuumizing the mould;
(4) Putting the mould into a drying tunnel for vulcanization;
(5) And trimming the vibration damper formed after vulcanization.
Preferably, the pretreatment comprises shot blasting treatment, wherein the current of the shot blasting treatment is 10-15A, the time is 5-10 min, and the roughness Rz is 20-60.
Preferably, the pretreatment comprises degreasing treatment, water washing treatment and drying treatment which are sequentially carried out, wherein the degreasing treatment temperature is 50-60 ℃, the time is 5-15 min, and the free alkalinity is 10-15.
Preferably, the drying temperature in the step (2) is 100 ℃, and the drying time in the step (2) is 5-15 min.
Preferably, the glue in the glue pond comprises a silica gel glue matrix and a modified heat-conducting agent, wherein the weight ratio of the modified heat-conducting agent to the silica gel glue matrix is 3 per mill-1%, and the modified heat-conducting agent is a compound of silanized alumina and silanized molybdenum powder.
Preferably, the weight ratio of the molybdenum powder to the alumina is 0.9-1.
Preferably, the vulcanization molding temperature in the step (4) is 170-180 ℃ and the vulcanization time is 270-350 s.
Preferably, the die in the step (3) is preheated at a temperature of 70-80 ℃.
Compared with the prior art, the invention has the beneficial effects that: before bonding, the framework is pretreated, impurities on the surface of the framework can be effectively removed, the silicon rubber is vulcanized after bonding, and no air bubble problem exists between the framework and the rubber piece; the mould is vacuumized, so that the problem of scar abusing of the vibration damper can be effectively solved.
Drawings
Fig. 1 is a schematic structural view of an automobile vibration damper of the present invention.
Fig. 2 is an exploded view of fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, connected variably, detachably, or integrally; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples:
as shown in fig. 1 to 2, an automobile vibration damper comprises a framework 1 and a rubber member 2, wherein the framework 1 is a plastic member, the framework 1 comprises a first annular body 11 and a second annular body 12, the first annular body 11 and the second annular body 12 are coaxially arranged, the second annular body 11 and the lower end of the first annular body 12 are integrally connected, a plurality of concave-convex parts in various shapes are arranged on the first annular body 11 and the second annular body 12, the rubber member 2 is made of silicon rubber, and the rubber member 2 is completely matched and adhered with the inner peripheral wall of the first annular body 11 and the upper end face of the second annular body 12.
The bonding method between the framework 1 and the rubber piece 2 comprises the following steps:
(1) Firstly, preprocessing a framework 1;
(2) Immersing the pretreated framework into a glue pool completely, and taking out and drying;
(3) Placing the dried framework into a mould, then beating silicon rubber slurry, and vacuumizing the mould;
(4) Putting the mould into a drying tunnel for vulcanization;
(5) And trimming the vibration damper formed after vulcanization.
The pretreatment is carried out in two ways, one is to carry out shot blasting treatment on the framework 1, the current of the shot blasting treatment is 10-15A, the time is 5-10 min, and the roughness Rz is 20-60; the other is degreasing treatment, water washing treatment and drying treatment are sequentially carried out on the framework 1, wherein the degreasing treatment temperature is 50-60 ℃, the time is 5-15 min, and the free alkalinity is 10-15; the effect of the method is that impurities on the framework 1 can be effectively removed after pretreatment, no bubbles exist between the framework 1 and the rubber part 2 after bonding and vulcanization, and the service life of the automobile vibration damper is effectively ensured.
At present, when the framework is adhered to the rubber piece, manual gluing is performed on the framework, only the adhesion part of the framework and the rubber piece is glued, and due to the fact that more concave-convex parts are arranged on the framework 1, missing coating is easy to occur, and due to the fact that the glue is transparent, the missing coating place is difficult to find, the framework 1 in the step (2) is completely immersed in a glue pool, and the problem that glue is missing at the adhesion part of the framework 1 and the rubber piece 2 can be effectively avoided.
During dipping, the first annular body 11 in the framework 1 is immersed in a glue pool, the second annular body 12 is immersed in the glue pool, then the framework 1 is taken out from the glue pool, and glue on the framework 1 is dripped into the glue pool under the action of gravity of the glue.
The drying temperature in the step (2) is 100 ℃, and the drying time is 5-15 min.
The die in the step (3) is preheated at 70-80 ℃.
And (3) vacuumizing the die, so that the problem of scar abuse of the vibration damper can be effectively solved.
The vulcanization molding temperature in the step (4) is 170-180 ℃ and the vulcanization time is 270-350 s.
In this embodiment, the glue in the glue pool includes a silica gel glue matrix and a modified heat-conducting agent, where the weight ratio of the modified heat-conducting agent to the silica gel glue matrix is 3 per mill-1%, and the modified heat-conducting agent is a compound of silanized alumina and silanized molybdenum powder, where the weight ratio of the molybdenum powder to the alumina is 0.9-1. Firstly mixing a silica gel glue body with a modified heat conducting agent, diluting by 5 times, then injecting into a glue pool, arranging a stirring device in the glue pool, and stirring continuously.
Through a large number of experiments, under the same conditions, only the weight ratio of the modified heat-conducting agent to the silica gel glue matrix is changed, and then the detachment force between the bonded and vulcanized silica gel glue matrix and the framework is detected, so as to obtain the following table 1:
table 1: data of separation force test between different heat conductive agents and framework
The glue matrix in table 1 is a silica gel glue matrix, which is commercially available, such as CH607 of lod chemistry, THIXON-305 of dupont, the modified heat conductive agent is a compound of silanized alumina and silanized molybdenum powder, the weight ratio of molybdenum powder to alumina is 1, and the unit of the detachment force is N.
As can be seen from table 1, after the silanized alumina is added to the silica gel matrix, the release force of the silica gel glue is obviously improved compared with that of the silica gel glue without the silanized alumina, and the release force of the silica gel glue with the modified heat-conducting agent is improved by about 10% compared with that of the silica gel glue with the silanized alumina, and the release force of the silica gel glue with the modified heat-conducting agent is more similar, especially 5 millmodified heat-conducting agent is added, the release force is the largest, and the difference between the release forces after the test is smaller.
The invention is illustrated by way of example and not by way of limitation. Other variations or modifications of the above description will be apparent to those of ordinary skill in the art, and it is not necessary or exhaustive of all embodiments, and obvious variations or modifications are contemplated as falling within the scope of the invention.
Claims (6)
1. The utility model provides an automobile vibration damper's bonding technology, automobile vibration damper includes skeleton and rubber spare, the skeleton is the working of plastics, the skeleton includes first annular body and second annular body, first annular body with the coaxial setting of second annular body, the second annular body with first annular body lower extreme body coupling, the material of rubber spare is silicone rubber, the rubber spare with the internal perisporium of first annular and the bonding between the second annular body up end mutually, its characterized in that, bonding technology between skeleton and the rubber spare includes the following steps:
(1) Firstly, preprocessing a framework;
(2) Immersing the pretreated framework into a glue pool completely, and taking out and drying;
(3) Placing the dried framework into a mould, then beating silicon rubber slurry, and vacuumizing the mould;
(4) Putting the mould into a drying tunnel for vulcanization;
(5) Trimming the vibration damper formed after vulcanization;
the glue in the glue pond comprises a silica gel glue matrix and a modified heat-conducting agent, wherein the weight ratio of the modified heat-conducting agent to the silica gel glue matrix is 3 per mill-1%, the modified heat-conducting agent is a compound of silanized aluminum oxide and silanized molybdenum powder, and the weight ratio of the molybdenum powder to the aluminum oxide is 0.9-1.
2. The bonding process of an automobile vibration damper according to claim 1, wherein the pretreatment comprises shot blasting treatment, wherein the current of the shot blasting treatment is 10-15 a, the time is 5-10 min, and the roughness Rz is 20-60.
3. The bonding process of the vibration damper of the automobile according to claim 1, wherein the pretreatment comprises degreasing treatment, washing treatment and drying treatment which are sequentially carried out, wherein the degreasing treatment temperature is 50-60 ℃, the time is 5-15 min, and the free alkalinity is 10-15.
4. The bonding process of an automobile vibration damper according to claim 1, wherein the drying temperature in the step (2) is 100 ℃, and the drying time in the step (2) is 5-15 min.
5. The bonding process of an automobile vibration damper according to claim 1, wherein the die in the step (3) is preheated at a temperature of 70-80 ℃.
6. The bonding process of an automobile vibration damper according to claim 1, wherein the vulcanization molding temperature in the step (4) is 170-180 ℃ and the vulcanization time is 270-350 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960289.1A CN113815170B (en) | 2021-08-20 | 2021-08-20 | Bonding process of automobile vibration damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960289.1A CN113815170B (en) | 2021-08-20 | 2021-08-20 | Bonding process of automobile vibration damper |
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| CN113815170A CN113815170A (en) | 2021-12-21 |
| CN113815170B true CN113815170B (en) | 2023-09-01 |
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| JP2003039452A (en) * | 2001-08-02 | 2003-02-13 | Canon Inc | Rubber roller manufacturing method |
| JP2009040941A (en) * | 2007-08-10 | 2009-02-26 | Two-One:Kk | Rubber composition and molded article comprising the rubber composition |
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| CN113815170A (en) | 2021-12-21 |
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Address after: 315600 No. 281 North Keyuan Road, Taoyuan Street, Ninghai County, Ningbo City, Zhejiang Province Applicant after: Jianxin Zhaoshi Technology Co.,Ltd. Address before: 315600 No. 281 North Keyuan Road, Taoyuan Street, Ninghai County, Ningbo City, Zhejiang Province Applicant before: JX ZHAO'S Group Corp. |
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