CN105691326B - Sound-absorbing sound insulation damping water-proof part and preparation method thereof in a kind of body of a motor car metal plate - Google Patents
Sound-absorbing sound insulation damping water-proof part and preparation method thereof in a kind of body of a motor car metal plate Download PDFInfo
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- CN105691326B CN105691326B CN201410682493.1A CN201410682493A CN105691326B CN 105691326 B CN105691326 B CN 105691326B CN 201410682493 A CN201410682493 A CN 201410682493A CN 105691326 B CN105691326 B CN 105691326B
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- hard portion
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- sound insulation
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Abstract
The present invention relates to sound-absorbing sound insulation damping water-proof part and preparation method thereof in a kind of body of a motor car metal plate, wherein, the sound-absorbing sound insulation damping water-proof part includes soft part noumenon, its shape vehicle body matches with sheet metal structural, also include hard portion, the hard portion is arranged on soft part noumenon bottom, composite molding is molded with soft part noumenon, the angle on the composition surface and horizontal plane of the hard portion and soft part noumenon is 58 °, forms guiding gutter.Compared with prior art, on the basis of conventional polyurethanes foaming of the present invention, increase hard waterproof part, make part that not only there is sound-absorbing, sound insulation, shock-absorbing function, also with waterproof, water guide function, improve automobile usage comfort.
Description
Technical field
It is anti-more particularly, to sound-absorbing sound insulation damping in a kind of body of a motor car metal plate the present invention relates to a kind of car body stamping part
Water part and preparation method thereof.
Background technology
With the development of automobile industry, requirement of the client to automobile be no longer simple power with it is handling, for sedan-chair
The requirement more and more higher of " security, comfortableness, the feature of environmental protection " of car, noise, vibrations, humidity are cause degree of comfort decreased important
One of reason, it is therefore desirable to be controlled.
Current AE personnel are in car to ride-control, sound-heat insulated cushion, in-car sound insulation, vibration isolation
Blanket, vehicle body paste the technology upgrading that glass, car roof etc. have all done sound insulation vibration isolation, obtain the vibration in car cockpit and noise
Effective improvement is arrived.But, the cavity passage in body structure also can produce and transmit the noise of vibration, this technical problem
All the time it is not well solved, noise is sent to passenger compartment by vehicle body sheet metal cavity, and discomfort is brought to passenger.Existing skill
In art, using bodywork cavity noise insulation block product in coating process process expanded by heating, lead to reach so as to block air mutually to alter
Reduce the purpose of noise.But existing noise insulation block also has that soundproof effect is not good, be unable to the deficiencies such as waterproof.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of sound-absorbing damping effect
It is good, there is sound-absorbing sound insulation damping water-proof part and preparation method thereof in the body of a motor car metal plate of water-proof function again.
The purpose of the present invention can be achieved through the following technical solutions：
Sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate, including soft part noumenon, its shape and vehicle body
Sheet metal structural matches, in addition to hard portion, and the hard portion is arranged on soft part noumenon bottom, is noted with soft part noumenon
Composite molding is moulded, the angle on the composition surface and horizontal plane of the hard portion and soft part noumenon is 5-8 °, forms guiding gutter.
The soft part noumenon is provided with the groove and corresponding mounting hole connected with vehicle body sheet metal.
The part of the soft part noumenon and hard portion to be made up of polyethers and isocyanate material.
The preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate, including following hard portion shaping step
Rapid and composite molding step, the hard portion forming step is specially：
A1 hard portion mold temperature) is risen to 50~70 DEG C, and keeps the temperature；
A2) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, as raw material, wherein, polyethers,
The mass ratio of isocyanates is 100: 120；
A3) releasing agent is sprayed in hard portion die surface；
A4) the setting high pressure foaming machine cast flow and duration of pouring, by storing fill in raw material inject die cavity；
A5) closed moulding：Hard portion mould is closed, raw material foamed, cure, be molded in die cavity；
A6 hard portion mould) is opened, hard portion is taken out；
The composite molding step is specially：
B1 component die temperature) is risen to 70~80 DEG C, and keeps the temperature；
B2) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, as raw material, wherein, polyethers,
The mass ratio of isocyanates is 100: 46；
B3) releasing agent is sprayed on component die surface；
B4) hard portion of acquisition is embedded into the relevant position of die cavity；
B5) the setting high pressure foaming machine cast flow and duration of pouring, by storing fill in raw material inject die cavity；
B6) closed moulding：Component die is closed, raw material foamed, cure, be molded in die cavity；
B7 component die) is opened, final products are obtained.
The releasing agent is solvent release agent, including siloxanes or polyethylene glycol.
In the step A4, high pressure foaming machine cast flow is 30~35g/s, and the duration of pouring is 1.1~1.3s.
In the step A5, the process conditions of closed moulding are：Mold temperature be 50~70 DEG C, mold closing pressure be 0.3~
0.4Mpa。
In the step B5, high pressure foaming machine cast flow is 90~95g/s, and the duration of pouring is 2.7~3.0s.
In the step B6, the process conditions of closed moulding are：Mold temperature at 70~80 DEG C, mold closing pressure 0.3~
0.4Mpa。
Compared with prior art, the present invention has advantages below：
1) present invention is combined last point of waterproof hard portion, product is existed on the basis of ordinary soft polyurethane foam
In the case of possessing sound-absorbing sound insulation damping, while having waterproof, water guide function, automobile usage comfort is improved.
2) shape of the invention and the metal plate matched of automobile, can effectively fill up the cavity of metal plate, propose sound-absorbing sound insulation
Damping effect.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is side view of the invention；
Fig. 3 is schematic rear view of the invention.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment 1
As shown in Figure 1-Figure 3, the embodiment of the present invention provides sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate,
Including soft part noumenon 1, its shape matches with vehicle body metal plate structure, and the soft bottom of part noumenon 1 is additionally provided with hard portion 2,
The hard portion 2 is molded composite molding, the angle on the composition surface and horizontal plane of hard portion and soft part noumenon with soft part noumenon 1
Spend for 5-8 °, the present embodiment is taken as 7 °, form guiding gutter.Soft part noumenon 1 be provided with the groove 3 that is connected with vehicle body sheet metal and
Corresponding mounting hole 4, the soft back side of part noumenon 1 is shiny surface.Soft part noumenon 1 and hard portion 2 are by polyethers and different
The part that cyanate ester material is made, wherein, soft part noumenon 1 have sound-absorbing, sound insulation, shock-absorbing function, hard portion 2 have every
Sound, waterproof, water guide function.
The present embodiment also provides a kind of preparation method of above-mentioned sound-absorbing sound insulation damping water-proof part, comprises the following steps：
(1) die heater is utilized, hard portion mold temperature 50 DEG C are risen to, and keep the temperature；
(2) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, wherein, polyethers, isocyanates
Mass ratio be 100: 120；
(3) releasing agent siloxanes is sprayed in hard portion die surface；
(4) set high pressure foaming machine cast flow be 30g/s, the duration of pouring is 1.1s, by storing fill in raw material note
Enter die cavity；
(5) closed moulding：Hard portion mould is closed, raw material foamed, cure, be molded in die cavity, wherein, mold temperature
At 50 DEG C, mold closing pressure is in 0.3Mpa；
(6) hard portion mould is opened, the hard portion for producing waterproof is taken out；
(7) die heater is utilized, component die temperature 70 DEG C are risen to, and keep the temperature；
(8) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, wherein, polyethers, isocyanates
Mass ratio be 100: 46；
(9) releasing agent siloxanes is sprayed on component die surface；
(10) set high pressure foaming machine cast flow be 90g/s, the duration of pouring is 3.0s, by storing fill in raw material note
Enter die cavity；
(11) closed moulding：Component die is closed, raw material foamed, cure, be molded in die cavity, wherein, mold temperature
At 50 DEG C, mold closing pressure is in 0.3Mpa；
(12) component die is opened, taking-up produces sound-absorbing sound insulation damping water-proof part in automobile hair metal plate.
Embodiment 2
The present embodiment provides a kind of preparation method of sound-absorbing sound insulation damping water-proof part in body of a motor car metal plate, including following
Step：
(1) die heater is utilized, hard portion mold temperature 60 DEG C are risen to, and keep the temperature；
(2) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, wherein, polyethers, isocyanates
Mass ratio be 100: 120；
(3) releasing agent polyethylene glycol is sprayed in hard portion die surface；
(4) set high pressure foaming machine cast flow be 35g/s, the duration of pouring is 1.3s, by storing fill in raw material note
Enter die cavity；
(5) closed moulding：Hard portion mould is closed, raw material foamed, cure, be molded in die cavity, wherein, mold temperature
At 60 DEG C, mold closing pressure is in 0.35Mpa；
(6) hard portion mould is opened, the hard portion for producing waterproof is taken out；
(7) die heater is utilized, component die temperature 80 DEG C are risen to, and keep the temperature；
(8) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, wherein, polyethers, isocyanates
Mass ratio be 100: 46；
(9) releasing agent siloxanes is sprayed on component die surface；
(10) set high pressure foaming machine cast flow be 95g/s, the duration of pouring is 2.9s, by storing fill in raw material note
Enter die cavity；
(11) closed moulding：Component die is closed, raw material foamed, cure, be molded in die cavity, wherein, mold temperature
At 60 DEG C, mold closing pressure is in 0.35Mpa；
(12) component die is opened, taking-up produces sound-absorbing sound insulation damping water-proof part in automobile hair metal plate, part is made
Structure is as described in Example 1.
Embodiment 3
The present embodiment provides a kind of preparation method of sound-absorbing sound insulation damping water-proof part in body of a motor car metal plate, including following
Step：
(1) die heater is utilized, hard portion mold temperature 70 DEG C are risen to, and keep the temperature；
(2) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, wherein, polyethers, isocyanates
Mass ratio be 100: 120；
(3) releasing agent siloxanes is sprayed in hard portion die surface；
(4) set high pressure foaming machine cast flow be 32g/s, the duration of pouring is 1.2s, by storing fill in raw material note
Enter die cavity；
(5) closed moulding：Hard portion mould is closed, raw material foamed, cure, be molded in die cavity, wherein, mold temperature
At 70 DEG C, mold closing pressure is in 0.4Mpa；
(6) hard portion mould is opened, the hard portion for producing waterproof is taken out；
(7) die heater is utilized, component die temperature 75 DEG C are risen to, and keep the temperature；
(8) polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, wherein, polyethers, isocyanates
Mass ratio be 100: 46；
(9) releasing agent siloxanes is sprayed on component die surface；
(10) set high pressure foaming machine cast flow be 92g/s, the duration of pouring is 2.7s, by storing fill in raw material note
Enter die cavity；
(11) closed moulding：Component die is closed, raw material foamed, cure, be molded in die cavity, wherein, mold temperature
At 70 DEG C, mold closing pressure is in 0.4Mpa；
(12) component die is opened, taking-up produces sound-absorbing sound insulation damping water-proof part in automobile hair metal plate, part is made
Structure is as described in Example 1.
Claims (7)
1. the preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate, it is characterised in that the sound-absorbing every
Sound damping water-proof part includes soft part noumenon and hard portion, shape and the vehicle body metal plate structure phase of the soft part noumenon
Matching, the hard portion is arranged on soft part noumenon bottom, and composite molding is molded with soft part noumenon, the hard portion and
The composition surface of soft part noumenon and the angle of horizontal plane are 5-8 °, form guiding gutter, the soft part noumenon and hard portion
It is made by polyethers and isocyanate material, the preparation method includes following hard portion forming step and composite molding step,
The hard portion forming step is specially：
A1）Hard portion mold temperature is risen to 50 ~ 70 DEG C, and keeps the temperature；
A2）Polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, as raw material, wherein, polyethers, isocyanide
The mass ratio of acid esters is 100：120；
A3）Releasing agent is sprayed in hard portion die surface；
A4）Set the high pressure foaming machine cast flow and duration of pouring, by storing fill in raw material inject die cavity；
A5）Closed moulding：Hard portion mould is closed, raw material foamed, cure, be molded in die cavity；
A6）Hard portion mould is opened, hard portion is taken out；
The composite molding step is specially：
B1）Component die temperature is risen to 70 ~ 80 DEG C, and keeps the temperature；
B2）Polyethers, isocyanates are separately added into the corresponding storing of high pressure foaming machine and fill interior, as raw material, wherein, polyethers, isocyanide
The mass ratio of acid esters is 100：46；
B3）Releasing agent is sprayed on component die surface；
B4）The hard portion of acquisition is embedded into the relevant position of die cavity；
B5）Set the high pressure foaming machine cast flow and duration of pouring, by storing fill in raw material inject die cavity；
B6）Closed moulding：Component die is closed, raw material foamed, cure, be molded in die cavity；
B7）Component die is opened, final products are obtained.
2. the preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate according to claim 1, its
It is characterised by, the releasing agent is solvent release agent, including siloxanes or polyethylene glycol.
3. the preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate according to claim 1, its
It is characterised by, in the step A4, high pressure foaming machine cast flow is 30 ~ 35g/s, and the duration of pouring is 1.1 ~ 1.3s.
4. the preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate according to claim 1, its
It is characterised by, in the step A5, the process conditions of closed moulding are：Mold temperature be 50 ~ 70 DEG C, mold closing pressure be 0.3 ~
0.4Mpa。
5. the preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate according to claim 1, its
It is characterised by, in the step B5, high pressure foaming machine cast flow is 90 ~ 95g/s, and the duration of pouring is 2.7 ~ 3.0s.
6. the preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate according to claim 1, its
It is characterised by, in the step B6, the process conditions of closed moulding are：Mold temperature at 70 ~ 80 DEG C, mold closing pressure 0.3 ~
0.4Mpa。
7. the preparation method of sound-absorbing sound insulation damping water-proof part in a kind of body of a motor car metal plate according to claim 1, its
It is characterised by, the soft part noumenon is provided with the groove and corresponding mounting hole connected with vehicle body sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682493.1A CN105691326B (en) | 2014-11-24 | 2014-11-24 | Sound-absorbing sound insulation damping water-proof part and preparation method thereof in a kind of body of a motor car metal plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682493.1A CN105691326B (en) | 2014-11-24 | 2014-11-24 | Sound-absorbing sound insulation damping water-proof part and preparation method thereof in a kind of body of a motor car metal plate |
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| Publication Number | Publication Date |
|---|---|
| CN105691326A CN105691326A (en) | 2016-06-22 |
| CN105691326B true CN105691326B (en) | 2017-09-05 |
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| CN201410682493.1A Active CN105691326B (en) | 2014-11-24 | 2014-11-24 | Sound-absorbing sound insulation damping water-proof part and preparation method thereof in a kind of body of a motor car metal plate |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108203492A (en) * | 2016-12-19 | 2018-06-26 | 上海新安汽车隔音毡有限公司 | A kind of automobile engine PUR Decorative Covers and preparation method thereof |
| CN109826785A (en) * | 2017-11-23 | 2019-05-31 | 上海新安汽车隔音毡有限公司 | Fuel pump the cover and preparation method thereof in a kind of automobile engine nacelle |
| CN111300715A (en) * | 2020-04-08 | 2020-06-19 | 洛阳凯众减震科技有限公司 | Composite molded polyurethane buffer block and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5993932A (en) * | 1996-06-18 | 1999-11-30 | Metzeler Schaum Gmbh | Foam material element for sound-damping cavities |
| CN202144125U (en) * | 2011-06-16 | 2012-02-15 | 浙江吉利汽车研究院有限公司 | Automobile cavity blocking part |
| CN202686211U (en) * | 2012-05-31 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Sound-isolating damping plate for automobiles |
| CN202896472U (en) * | 2012-08-30 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Vibration reduction sound absorption part on automobile body |
| CN204368055U (en) * | 2014-11-24 | 2015-06-03 | 上海新安汽车隔音毡有限公司 | Sound-absorbing sound insulation damping water-proof part in auto body panel beating |
-
2014
- 2014-11-24 CN CN201410682493.1A patent/CN105691326B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5993932A (en) * | 1996-06-18 | 1999-11-30 | Metzeler Schaum Gmbh | Foam material element for sound-damping cavities |
| CN202144125U (en) * | 2011-06-16 | 2012-02-15 | 浙江吉利汽车研究院有限公司 | Automobile cavity blocking part |
| CN202686211U (en) * | 2012-05-31 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Sound-isolating damping plate for automobiles |
| CN202896472U (en) * | 2012-08-30 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Vibration reduction sound absorption part on automobile body |
| CN204368055U (en) * | 2014-11-24 | 2015-06-03 | 上海新安汽车隔音毡有限公司 | Sound-absorbing sound insulation damping water-proof part in auto body panel beating |
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