CN103897131A - Manufacturing method of high-temperature-resistant fire-resistant sound-absorption shock-absorption parts for automobile engine compartment - Google Patents
Manufacturing method of high-temperature-resistant fire-resistant sound-absorption shock-absorption parts for automobile engine compartment Download PDFInfo
- Publication number
- CN103897131A CN103897131A CN201210587942.5A CN201210587942A CN103897131A CN 103897131 A CN103897131 A CN 103897131A CN 201210587942 A CN201210587942 A CN 201210587942A CN 103897131 A CN103897131 A CN 103897131A
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- Prior art keywords
- die
- automobile engine
- temperature
- absorption
- resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/60—Releasing, lubricating or separating agents
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/40—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length by gravity, e.g. by casting
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2350/00—Acoustic or vibration damping material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention relates to a manufacturing method of high-temperature-resistant fire-resistant sound-absorption shock-absorption parts for an automobile engine compartment. The method comprises the following steps: (1) heating a die to 50-70DEG C by utilizing a die heater, and preserving the temperature; (2) introducing a flame retardant and polyether into a mixing cylinder for mixing according to certain proportion; (3) adding the flame retardant and polyether mixture and isocyanate into corresponding storage tanks of a high-pressure foaming machine; (4) spraying a release agent on the surface of the die; (5) setting the casting flow and pouring time of the high-pressure foaming machine, and injecting the raw materials in the storage tanks into a die cavity; (6) closing the die and forming, namely closing the die, and foaming, curing and forming the raw materials in the die cavity; and (7) opening the die, and taking out to obtain high-temperature-resistant fire-resistant sound-absorption shock-absorption parts for the automobile engine compartment. Compared with the prior art, the manufacturing method disclosed by the invention has the advantages that on the basis of common polyurethane foaming, by adding flame retardant materials, the parts not only can be sound-absorption and shock-absorption, but also can be high-temperature-resistant and fire-resistant.
Description
Technical field
The present invention relates to a kind of preparation method of sound-absorbing damping part, especially relate to the preparation method of a kind of automobile engine nacelle fire resistant sound-absorbing damping part.
Background technology
The polyurethane foam series products of automobile industry, adopts common constituent mostly at present, carries out according to a certain percentage hybrid reaction by polyethers and isocyanic ester, the product of this composition, have sound-absorbing damping texts, be used for plates of automobile joint filling damping and sound-absorbing, and effect is remarkable.
Nacelle noise, is one of main noise source of car noise, if want for entire car denoise, is that nacelle noise reduction is essential so.But conventional polyurethanes material at high temperature deposit can distortion, melt, even spontaneous combustion, thus must have one can meet sound-absorbing damping requirement, polyurethane material that again can fire-proof high-temperature resistant.
Summary of the invention
Object of the present invention is exactly the preparation method that a kind of automobile engine nacelle fire resistant sound-absorbing damping part is provided in order to overcome the defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A preparation method for fire resistant sound-absorbing damping part for automobile engine nacelle, the method comprises the following steps:
(1) utilize die heater, die temperature is risen to 50～70 DEG C, and keep this temperature;
(2) fire retardant and polyethers being imported to compounding jar according to a certain percentage mixes;
(3) mixture of fire retardant and polyethers, isocyanic ester are added respectively in the corresponding storing filling of high pressure foaming machine;
(4) spray releasing agent at die surface;
(5) set high pressure foaming machine cast flow and the duration of pouring, the raw material in storing is filled with injects die cavity;
(6) closed moulding: closed die, makes raw material foaming in die cavity, slaking, moulding;
(7) open mould, take out and obtain automobile engine nacelle fire resistant sound-absorbing damping part.
Described fire retardant and the weight ratio of polyethers are (18～20): (80～82).
Described fire retardant is one or more in expanded graphite, ammonium polyphosphate or silicon-dioxide.
The described releasing agent of step (4) is solvent release agent, is selected from siloxanes or polyoxyethylene glycol.
The described high pressure foaming machine cast flow of step (5) is 45～55g/s, and be 1.1～1.3s the duration of pouring.
The processing condition of the closed moulding described in step (6) are: die temperature is at 50～70 DEG C, and mold closing pressure is at 0.3～0.4Mpa.
The highest resistance to 152 DEG C of high temperature of fire resistant sound-absorbing damping part for automobile engine nacelle, this part high temperature is deposited and can be met under the condition of 180h/150 DEG C, 600h/120 DEG C, 3000h/100 DEG C, not spontaneous combustion, indeformable, and after depositing, tensile strength >=80Kpa, meets fire and does not fire.
The high-pressure oil pump of engine shape of the shape of this part and automobile matches.
Compared with prior art, the present invention, on the basis of conventional polyurethanes foaming, adds fire retardant matter, makes the part not only can sound-absorbing damping, but also high temperature resistant, fire prevention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
A preparation method for fire resistant sound-absorbing damping part for automobile engine nacelle, the method comprises the following steps:
(1) utilize die heater, die temperature is risen to 50 DEG C, and keep this temperature;
(2) be 18: 80 by fire retardant expanded graphite and polyethers according to weight ratio, import compounding jar and mix;
(3) mixture of expanded graphite and polyethers, isocyanic ester are added respectively in the corresponding storing filling of high pressure foaming machine;
(4) spray releasing agent siloxanes at die surface;
(5) setting high pressure foaming machine cast flow is 45g/s, and be 1.1s the duration of pouring, and the raw material in storing is filled with injects die cavity;
(6) closed moulding: closed die, make raw material foaming in die cavity, slaking, moulding, wherein, die temperature is at 50 DEG C, and mold closing pressure is at 0.3Mpa;
(7) open mould, take out and obtain automobile engine nacelle fire resistant sound-absorbing damping part.
The highest resistance to 152 DEG C of high temperature of fire resistant sound-absorbing damping part for automobile engine nacelle, this part high temperature is deposited and can be met under the condition of 180h/150 DEG C, 600h/120 DEG C, 3000h/100 DEG C, not spontaneous combustion, indeformable, and after depositing, tensile strength >=80Kpa, meets fire and does not fire.
The high-pressure oil pump of engine shape of the shape of this part and automobile matches.
Embodiment 2
A preparation method for fire resistant sound-absorbing damping part for automobile engine nacelle, the method comprises the following steps:
(1) utilize die heater, die temperature is risen to 60 DEG C, and keep this temperature;
(2) be 19: 81 by ammonium polyphosphate flame retardant and polyethers according to weight ratio, import compounding jar and mix;
(3) mixture of ammonium polyphosphate and polyethers, isocyanic ester are added respectively in the corresponding storing filling of high pressure foaming machine;
(4) spray releasing agent polyoxyethylene glycol at die surface;
(5) setting high pressure foaming machine cast flow is 50g/s, and be 1.2s the duration of pouring, and the raw material in storing is filled with injects die cavity;
(6) closed moulding: closed die, make raw material foaming in die cavity, slaking, moulding, wherein, die temperature is at 60 DEG C, and mold closing pressure is at 0.35Mpa;
(7) open mould, take out and obtain automobile engine nacelle fire resistant sound-absorbing damping part.
Embodiment 3
A preparation method for fire resistant sound-absorbing damping part for automobile engine nacelle, the method comprises the following steps:
(1) utilize die heater, die temperature is risen to 70 DEG C, and keep this temperature;
(2) be 20: 82 by fire retardant silicon-dioxide and polyethers according to weight ratio, import compounding jar and mix;
(3) mixture of silicon-dioxide and polyethers, isocyanic ester are added respectively in the corresponding storing filling of high pressure foaming machine;
(4) spray releasing agent siloxanes at die surface;
(5) setting high pressure foaming machine cast flow is 55g/s, and be 1.3s the duration of pouring, and the raw material in storing is filled with injects die cavity;
(6) closed moulding: closed die, make raw material foaming in die cavity, slaking, moulding, wherein, die temperature is at 70 DEG C, and mold closing pressure is at 0.4Mpa;
(7) open mould, take out and obtain automobile engine nacelle fire resistant sound-absorbing damping part.
Claims (6)
1. a preparation method for fire resistant sound-absorbing damping part for automobile engine nacelle, is characterized in that, the method comprises the following steps:
(1) utilize die heater, die temperature is risen to 50～70 DEG C, and keep this temperature;
(2) fire retardant and polyethers being imported to compounding jar according to a certain percentage mixes;
(3) mixture of fire retardant and polyethers, isocyanic ester are added respectively in the corresponding storing filling of high pressure foaming machine;
(4) spray releasing agent at die surface;
(5) set high pressure foaming machine cast flow and the duration of pouring, the raw material in storing is filled with injects die cavity;
(6) closed moulding: closed die, makes raw material foaming in die cavity, slaking, moulding;
(7) open mould, take out and obtain automobile engine nacelle fire resistant sound-absorbing damping part.
2. the preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle according to claim 1, is characterized in that, described fire retardant and the weight ratio of polyethers are (18～20): (80～82).
3. the preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle according to claim 1, is characterized in that, described fire retardant is one or more in expanded graphite, ammonium polyphosphate or silicon-dioxide.
4. the preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle according to claim 1, is characterized in that, the described releasing agent of step (4) is solvent release agent, is selected from siloxanes or polyoxyethylene glycol.
5. the preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle according to claim 1, is characterized in that, the described high pressure foaming machine cast flow of step (5) is 45～55g/s, and be 1.1～1.3s the duration of pouring.
6. the preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle according to claim 1, it is characterized in that, the processing condition of the closed moulding described in step (6) are: die temperature is at 50～70 DEG C, and mold closing pressure is at 0.3～0.4Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210587942.5A CN103897131B (en) | 2012-12-30 | 2012-12-30 | The preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210587942.5A CN103897131B (en) | 2012-12-30 | 2012-12-30 | The preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103897131A true CN103897131A (en) | 2014-07-02 |
| CN103897131B CN103897131B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210587942.5A Active CN103897131B (en) | 2012-12-30 | 2012-12-30 | The preparation method of fire resistant sound-absorbing damping part for a kind of automobile engine nacelle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119489A (en) * | 2013-12-23 | 2014-10-29 | 上海新安汽车隔音毡有限公司 | Manufacturing method of shock-absorbing sound-proof housing for automobile high-pressure fuel pump |
| CN109263572A (en) * | 2018-10-22 | 2019-01-25 | 上海新安汽车隔音毡有限公司 | A kind of automobile high-pressure oil pump blimp and its manufacture mold and manufacturing method |
| CN111037941A (en) * | 2019-09-26 | 2020-04-21 | 上海稀点新材料科技有限公司 | Preparation system of material with nano-porous structure |
| CN111300716A (en) * | 2019-11-29 | 2020-06-19 | 上海新安汽车隔音毡有限公司 | Manufacturing method of fireproof PUR decorative cover of automobile engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534051A (en) * | 2003-03-28 | 2004-10-06 | 上海凯众聚氨酯有限公司 | Polyurethane microporous elastic body production method |
| CN1849351A (en) * | 2003-09-19 | 2006-10-18 | 旭硝子株式会社 | Flexible polyurethane foam and its preparation process |
-
2012
- 2012-12-30 CN CN201210587942.5A patent/CN103897131B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534051A (en) * | 2003-03-28 | 2004-10-06 | 上海凯众聚氨酯有限公司 | Polyurethane microporous elastic body production method |
| CN1849351A (en) * | 2003-09-19 | 2006-10-18 | 旭硝子株式会社 | Flexible polyurethane foam and its preparation process |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119489A (en) * | 2013-12-23 | 2014-10-29 | 上海新安汽车隔音毡有限公司 | Manufacturing method of shock-absorbing sound-proof housing for automobile high-pressure fuel pump |
| CN109263572A (en) * | 2018-10-22 | 2019-01-25 | 上海新安汽车隔音毡有限公司 | A kind of automobile high-pressure oil pump blimp and its manufacture mold and manufacturing method |
| CN111037941A (en) * | 2019-09-26 | 2020-04-21 | 上海稀点新材料科技有限公司 | Preparation system of material with nano-porous structure |
| CN111300716A (en) * | 2019-11-29 | 2020-06-19 | 上海新安汽车隔音毡有限公司 | Manufacturing method of fireproof PUR decorative cover of automobile engine |
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| Publication number | Publication date |
|---|---|
| CN103897131B (en) | 2016-05-04 |
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Inventor after: Yan Huihui Inventor before: Yan Huihui |
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