CN101659243A - Molding technology of auto sound-insulating and thermal-insulating pad - Google Patents
Molding technology of auto sound-insulating and thermal-insulating pad Download PDFInfo
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- CN101659243A CN101659243A CN200910182923A CN200910182923A CN101659243A CN 101659243 A CN101659243 A CN 101659243A CN 200910182923 A CN200910182923 A CN 200910182923A CN 200910182923 A CN200910182923 A CN 200910182923A CN 101659243 A CN101659243 A CN 101659243A
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- insulating
- polyethylene terephthalate
- thermal
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- felt
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Abstract
The invention discloses a production method of an auto sound-insulating and thermal-insulating pad. According to the technical scheme provided by the invention, the method comprises the following steps: (1) setting the temperature of a pre-heating device of a baking oven; (2) cutting a polyethylene terephthalate (PET) felt into felt blocks with appropriate size; (3) sending the well cut polyethylene terephthalate (PET) felt blocks into the baking oven for heating through a clamp; (4) sending the PET felt blocks into a mold for pressing through the clamp after the completion of baking and keeping the pressure for a period of time; and (5) opening the mold for taking out a product and trimming burr edges. The product produced by the method has good performances, such as special lightweight,high sound absorption and the like, and can be widely applied in aircrafts, auto parts and other industries. The product has no toxicity or smell, thereby being the real green environment-friendly product.
Description
Technical field
The invention belongs to the vehicular spare parts processing technique field, specifically relate to a kind of production method of auto sound-insulating and thermal-insulating pad.
Background technology
At present, domestic auto sound-insulating and thermal-insulating pad product mostly adopts back and spins cotton material and pass through thermoset forming technology and be made, this method for making need be used the curing molding agent, curing molding agent commonly used in the prior art is generally phenol resin, the product shortcoming of making is wherein to contain hazardous and noxious substances such as formaldehyde, can produce harm to the health of automobile driver and passenger, can't recycling after product breakage is useless, cause the waste of resource, and it handles the modes such as burning or landfill that often adopt, further contaminated environment.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of employing thermoplastic shaping technology to make, the production efficiency height is stopped the toxic substance infringement, and is safe, the forming process of the auto sound-insulating and thermal-insulating pad that processing waste can be recycled.
According to technical scheme provided by the invention, the forming process of described auto sound-insulating and thermal-insulating pad comprises the steps:
(1) temperature of the preheating apparatus of setting baking incubator (between 160 ℃～200 ℃ of product difformity zones of different setting heating-up temperatures);
(2) polyethylene terephthalate (PET) felt is cut into the felt piece (according to the product size, generally between about 1000mm * 1800mm) of appropriate size;
(3) polyethylene terephthalate that will cut (PET) felt piece is sent into Oven heating (according to the material thickness difference, time of heat is between 50S～120S) by anchor clamps;
(4) the PET felt piece after baking temperature is finished is sent into mould compacting and pressurize a period of time (the die-cut range of pressure of punching machine: 30T～80T, dwell time scope: between 20S～60S) by anchor clamps;
(5) product is taken out in die sinking, and prunes burr.
The invention has the advantages that: simple and efficient to handle, constant product quality, the production efficiency height, the infringement of having stopped toxic substances such as formaldehyde, safe, processing waste can recycling, can realize manufacturing scaleization and environmental protectionization.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
(1) setting baking incubator heating-up temperature is 160 ℃, and waiting temperature rises to 160 ℃ (the material heating mainly makes in order to melt surperficial low-melting point PET, and to reach the effect that moulding is binded, temperature is set height mainly according to product shape chamber and thickness);
(2) the PET felt is cut into as required the felt piece (adopting the mechanical equipment unification to cut during production in enormous quantities) that length and width are about 1000mm * 1800mm;
(3) the above-mentioned felt piece that cuts is pinched into baking oven, time of heat is 50S;
(4) the felt piece after the baking temperature is sent into mould compression moulding and pressurize a period of time; Die-cut pressure is: 30T, and the dwell time is 20S (the die-cut pressure that general material thickness adopts below 15mm is less, about 30T～50T, the dwell time is shorter, greatly between 20S～35S);
(5) die cutting die is risen, product is taken out in die sinking, and prunes burr.
Embodiment 2 (other one group of technological parameter is provided)
(1) setting baking incubator heating-up temperature is 180 ℃, and waiting temperature rises to 180 ℃ (the material heating mainly makes in order to melt surperficial low-melting point PET, and to reach the effect that moulding is binded, temperature is set height mainly according to product shape chamber and thickness);
(2) the PET felt is cut into as required the felt piece (adopting the mechanical equipment unification to cut during production in enormous quantities) that length and width are about 1000mm * 1800mm;
(3) the above-mentioned felt piece that cuts is pinched into baking oven, time of heat is 80S;
(4) the felt piece after the baking temperature is sent into mould compression moulding and pressurize a period of time; Die-cut pressure is: 50T, and the dwell time is 45S (general material thickness makes the die-cut pressure of employing more moderate at 15mm～25mm, and about 45T～60T is between dwell time 35S～50S);
(5) die cutting die is risen, product is taken out in die sinking, and prunes burr.
Embodiment 3 (other one group of technological parameter is provided)
(1) setting baking incubator heating-up temperature is 200 ℃, and waiting temperature rises to 200 ℃ (the material heating mainly makes in order to melt surperficial low-melting point PET, and to reach the effect that moulding is binded, temperature is set height mainly according to product shape chamber and thickness);
(2) the PET felt is cut into as required the felt piece (adopting the mechanical equipment unification to cut during production in enormous quantities) that length and width are about 1000mm * 1800mm;
(3) the above-mentioned felt piece that cuts is pinched into baking oven, time of heat is 120S;
(4) the felt piece after the baking temperature is sent into mould compression moulding and pressurize a period of time; Die-cut pressure is: 80T, and the dwell time is 60S (general material thickness makes the die-cut pressure of employing bigger more than 25mm, about 60T～80T, the dwell time is longer, greatly between 50S～60S);
(5) die cutting die is risen, product is taken out in die sinking, and prunes burr.
Claims (3)
1, a kind of production method of auto sound-insulating and thermal-insulating pad is characterized in that, described method comprises following steps:
(1) setting temperature of oven is 160 ℃～200 ℃;
(2) the polyethylene terephthalate felt is cut into polyethylene terephthalate felt piece;
The polyethylene terephthalate felt piece that (3) will cut utilizes anchor clamps to send into to heat under described temperature in the described baking oven, and time of heat is 50S～120S;
(4) utilize anchor clamps to send into the mould compacting through the polyethylene terephthalate felt piece after the heating, and pressurize a period of time, pressure-formed pressure: 30 tons～80 tons, the dwell time: between 20S～60S;
(5) product is taken out in die sinking, and prunes burr.
2, according to the production method of the described auto sound-insulating and thermal-insulating pad of claim 1, its feature is that also described polyethylene terephthalate felt has the polyethylene terephthalate materials of low melting material for the surface.
3, according to the production method of the described auto sound-insulating and thermal-insulating pad of claim 1, its feature is that also described polyethylene terephthalate felt piece is of a size of 1000mm * 1800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910182923A CN101659243A (en) | 2009-09-10 | 2009-09-10 | Molding technology of auto sound-insulating and thermal-insulating pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910182923A CN101659243A (en) | 2009-09-10 | 2009-09-10 | Molding technology of auto sound-insulating and thermal-insulating pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101659243A true CN101659243A (en) | 2010-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910182923A Pending CN101659243A (en) | 2009-09-10 | 2009-09-10 | Molding technology of auto sound-insulating and thermal-insulating pad |
Country Status (1)
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| CN (1) | CN101659243A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336167A (en) * | 2010-07-26 | 2012-02-01 | 上海新安汽车隔音毡有限公司 | Multi-layer sound insulation pad for automobile and manufacture method thereof |
| CN102423937A (en) * | 2011-09-10 | 2012-04-25 | 无锡吉兴汽车部件有限公司 | Production method of trunk component of car |
| CN102785370A (en) * | 2012-08-23 | 2012-11-21 | 无锡吉兴汽车部件有限公司 | Manufacturing method of environment-friendly saloon car sound insulating pad |
| CN102873961A (en) * | 2012-10-12 | 2013-01-16 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing sound-insulating pads for automobile hubcaps |
| CN103386912A (en) * | 2013-07-02 | 2013-11-13 | 无锡吉兴汽车部件有限公司 | Production method of integrated car carpet |
-
2009
- 2009-09-10 CN CN200910182923A patent/CN101659243A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336167A (en) * | 2010-07-26 | 2012-02-01 | 上海新安汽车隔音毡有限公司 | Multi-layer sound insulation pad for automobile and manufacture method thereof |
| CN102423937A (en) * | 2011-09-10 | 2012-04-25 | 无锡吉兴汽车部件有限公司 | Production method of trunk component of car |
| CN102423937B (en) * | 2011-09-10 | 2014-04-30 | 无锡吉兴汽车部件有限公司 | Production method of trunk component of car |
| CN102785370A (en) * | 2012-08-23 | 2012-11-21 | 无锡吉兴汽车部件有限公司 | Manufacturing method of environment-friendly saloon car sound insulating pad |
| CN102785370B (en) * | 2012-08-23 | 2014-08-13 | 无锡吉兴汽车部件有限公司 | Manufacturing method of environment-friendly saloon car sound insulating pad |
| CN102873961A (en) * | 2012-10-12 | 2013-01-16 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing sound-insulating pads for automobile hubcaps |
| CN103386912A (en) * | 2013-07-02 | 2013-11-13 | 无锡吉兴汽车部件有限公司 | Production method of integrated car carpet |
| CN103386912B (en) * | 2013-07-02 | 2015-09-23 | 无锡吉兴汽车部件有限公司 | A kind of production method of all-in-one car carpet |
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Open date: 20100303 |