CN102993721B - Cover plate of central electric box of automobile and manufacture method of cover plate - Google Patents
Cover plate of central electric box of automobile and manufacture method of cover plate Download PDFInfo
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- CN102993721B CN102993721B CN201210295112.5A CN201210295112A CN102993721B CN 102993721 B CN102993721 B CN 102993721B CN 201210295112 A CN201210295112 A CN 201210295112A CN 102993721 B CN102993721 B CN 102993721B
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Abstract
The invention discloses a cover plate of a central electric box of an automobile and a manufacture method of the cover plate. The manufacture method mainly comprises the following steps in sequence: preparing a material A and a material B; drying and mixing the materials based on ratio; feeding the mixture into a heated injection molding machine; adjusting the injection pressure, the injection speed, the injection time and the amount of injected glue of the injection molding machine based on different sections, and adjusting the final holding pressure and holding speed so as to obtain the optimal injection molding technology, thus obtaining the qualified product by the optimal injection molding technology. By adopting the manufacture method, the defects of physical performances of the injection molded cover plate of the central electric box of the automobile during forming can be solved, such as drag mark, breaking, poor toughness and low strength; the injection molding technology disclosed by the invention is high in stability; the manufactured cover plate is stable in quality; the producing efficiency is improved; and the producing cost is reduced.
Description
Technical field
The present invention relates to a kind of central electrical box of automobile cover plate and manufacture method thereof, belong to field of automobile.
Background technology
Nylon has excellent toughness, self lubricity, wear resistance, chemical resistant properties, gas-premeable and oil-proofness, the nontoxic and easy advantage such as painted, so nylon is industrially used widely, along with the progress of society, the usage quantity of automobile is in continuous increase, most of component of automobile all have nylon to obtain, the plastic cement of prior art usually have assembling inconvenient, locate inaccurate, connect unstable, strength of joint not and affect the shortcomings such as contact performance.
Summary of the invention
In order to alleviate shortcomings and deficiencies of the prior art, the object of the present invention is to provide a kind of central electrical box of automobile cover plate and manufacture method thereof, the central electrical box of automobile cover plate product when shaping that the invention solves injection moulding physicals defect such as easily occur drawing white, fracture, poor toughness, intensity low, this Shooting Technique stability simultaneously, products obtained therefrom steady quality, improve production efficiency, reduce production cost.
The present invention adopts following technical scheme to achieve these goals:
Central electrical box of automobile cover plate, it obtains: A by the raw material mixing granulation reprocessing of following weight parts to expect 65-70, and B expects 50-55;
Described A material is obtained by the raw material of following weight parts: nylon PA66 50-60, black masterbatch 0.3-0.5, ABS high glue powder 15-20, terra alba 10-25, polybutylene terephthalate 3-5, polycaprolactone 4-6, poly-4-methyl-1-pentene 0.6-0.8, phenyl triethoxysilane 0.5-0.8, dioctyl ester 0.3-0.5, oxidation inhibitor 1035 0.3-0.5,2-thiol group benzimidazolyl 0.1-0.3, polyethylene wax 0.3-0.5, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 0.7-0.9;
Described B material is obtained by the raw material of following weight parts: nylon PA66 50-60, glass fibre 13-18, attapulgite modified 5-10, dicumyl peroxide 0.3-0.5, polycaprolactone 5-8, linking agent TAC 0.8-1.2, antioxidant 1010 0.5-0.7, stearic acid direactive glyceride 0.3-0.5, clorafin 0.5-0.8, lead sulfate tribasic 0.2-0.4.
The manufacture method of central electrical box of automobile cover plate, comprises the following steps:
(1) preparation of A is expected:
All raw materials of material A are taken by the weight part of constitutive material, then be placed in high-speed mixer and mixing 4-6min, the mixture obtained adds in twin screw extruder through main spout, and controlled working temperature is at 245-275 DEG C, screw rod revolution is at 450-650rpm, and after melting, namely extruding pelletization obtains material A;
(2) preparation of B is expected:
All raw materials of material B are taken by the weight part of constitutive material, the each raw material except glass fibre getting B material is placed in high-speed mixer and mixing 3-5min, the mixture obtained adds in twin screw extruder through main spout, glass fibre adds twin screw extruder by weight from side spout, controlled working temperature is at 230-245 DEG C, screw rod revolution is at 350-500rpm, and after melting, namely extruding pelletization obtains material B;
(3) mixed injection molding:
Material A and material B is carried out drying treatment by after proportioning mixing, and drying temperature is 80-90 DEG C, and time of drying is 5-7 hour, then joins in injection moulding machine; The temperature of injection moulding machine heating zone is set: first paragraph 280 ± 5 DEG C, second segment 275 ± 5 DEG C, the 3rd section 270 ± 5 DEG C, the 4th section 265 ± 5 DEG C, the 5th section 260 ± 5 DEG C; Injection moulding section molding technique parameter is as follows:
A, first paragraph adopt the middle pressure of 45-55Mpa, the medium velocity injection of 40-50m/s, and inject time is 1.0-1.5 second, and injection glue amount is to the 73-78% of product;
B, second segment adopt the middle pressure of 55-60Mpa, the medium velocity injection of 40-50m/s, and inject time is 0.8-1.2 second, and injection glue amount is to 100% of water port of product;
(4) finally shaping, the demoulding, to obtain final product.
Described attapulgite modified preparation technology is: first use 15-20% salt acid soak attapulgite 1-2 hour, leaves standstill, clarification, centrifugal, solid washed with water is extremely neutral, after oven dry, add the 3-aminopropyl trimethoxysilane agitating being equivalent to solid weight 3-5% even, dry, be ground into powder.
Beneficial effect of the present invention:
The central electrical box of automobile cover plate product when shaping that the invention solves injection moulding physicals defect such as easily occur drawing white, fracture, poor toughness, intensity low, this Shooting Technique stability simultaneously, products obtained therefrom steady quality, improves production efficiency, reduces production cost.
Embodiment
Embodiment 1: central electrical box of automobile cover plate, it obtains: A by the raw material mixing granulation reprocessing of following weight parts to expect 65-70, and B expects 50-55;
Described A material is obtained by the raw material of following weight parts: nylon PA66 50-60, black masterbatch 0.3-0.5, ABS high glue powder 15-20, terra alba 10-25, polybutylene terephthalate 3-5, polycaprolactone 4-6, poly-4-methyl-1-pentene 0.6-0.8, phenyl triethoxysilane 0.5-0.8, dioctyl ester 0.3-0.5, oxidation inhibitor 1035 0.3-0.5,2-thiol group benzimidazolyl 0.1-0.3, polyethylene wax 0.3-0.5, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 0.7-0.9;
Described B material is obtained by the raw material of following weight parts: nylon PA66 50-60, glass fibre 13-18, attapulgite modified 5-10, dicumyl peroxide 0.3-0.5, polycaprolactone 5-8, linking agent TAC 0.8-1.2, antioxidant 1010 0.5-0.7, stearic acid direactive glyceride 0.3-0.5, clorafin 0.5-0.8, lead sulfate tribasic 0.2-0.4.
The manufacture method of central electrical box of automobile cover plate, comprises the following steps:
(1) preparation of A is expected:
All raw materials of material A are taken by the weight part of constitutive material, then be placed in high-speed mixer and mixing 4-6min, the mixture obtained adds in twin screw extruder through main spout, and controlled working temperature is at 245-275 DEG C, screw rod revolution is at 450-650rpm, and after melting, namely extruding pelletization obtains material A;
(2) preparation of B is expected:
All raw materials of material B are taken by the weight part of constitutive material, the each raw material except glass fibre getting B material is placed in high-speed mixer and mixing 3-5min, the mixture obtained adds in twin screw extruder through main spout, glass fibre adds twin screw extruder by weight from side spout, controlled working temperature is at 230-245 DEG C, screw rod revolution is at 350-500rpm, and after melting, namely extruding pelletization obtains material B;
(3) mixed injection molding:
Material A and material B is carried out drying treatment by after proportioning mixing, and drying temperature is 80-90 DEG C, and time of drying is 5-7 hour, then joins in injection moulding machine; The temperature of injection moulding machine heating zone is set: first paragraph 280 ± 5 DEG C, second segment 275 ± 5 DEG C, the 3rd section 270 ± 5 DEG C, the 4th section 265 ± 5 DEG C, the 5th section 260 ± 5 DEG C; Injection moulding section molding technique parameter is as follows:
A, first paragraph adopt the middle pressure of 45-55Mpa, the medium velocity injection of 40-50m/s, and inject time is 1.0-1.5 second, and injection glue amount is to the 73-78% of product;
B, second segment adopt the middle pressure of 55-60Mpa, the medium velocity injection of 40-50m/s, and inject time is 0.8-1.2 second, and injection glue amount is to 100% of water port of product;
(4) finally shaping, the demoulding, to obtain final product.
Described attapulgite modified preparation technology is: first use 15-20% salt acid soak attapulgite 1-2 hour, leaves standstill, clarification, centrifugal, solid washed with water is extremely neutral, after oven dry, add the 3-aminopropyl trimethoxysilane agitating being equivalent to solid weight 3-5% even, dry, be ground into powder.
The Performance Detection of the central electrical box of automobile cover plate obtained by above-described embodiment:
Claims (3)
1. a central electrical box of automobile cover plate, is characterized in that, it obtains: A by the raw material mixing granulation reprocessing of following weight parts to expect 65-70, and B expects 50-55;
Described A material is obtained by the raw material of following weight parts: nylon PA66 50-60, black masterbatch 0.3-0.5, ABS high glue powder 15-20, terra alba 10-25, polybutylene terephthalate 3-5, polycaprolactone 4-6, poly-4-methyl-1-pentene 0.6-0.8, phenyl triethoxysilane 0.5-0.8, dioctyl ester 0.3-0.5, oxidation inhibitor 1035 0.3-0.5,2-thiol group benzimidazolyl 0.1-0.3, polyethylene wax 0.3-0.5, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 0.7-0.9;
Described B material is obtained by the raw material of following weight parts: nylon PA66 50-60, glass fibre 13-18, attapulgite modified 5-10, dicumyl peroxide 0.3-0.5, polycaprolactone 5-8, linking agent TAC 0.8-1.2, antioxidant 1010
0.5-0.7, stearic acid direactive glyceride 0.3-0.5, clorafin 0.5-0.8, lead sulfate tribasic 0.2-0.4.
2. a manufacture method for central electrical box of automobile cover plate as claimed in claim 1, is characterized in that comprising the following steps:
(1) preparation of A is expected:
All raw materials of material A are taken by the weight part of constitutive material, then be placed in high-speed mixer and mixing 4-6min, the mixture obtained adds in twin screw extruder through main spout, and controlled working temperature is at 245-275 DEG C, screw rod revolution is at 450-650rpm, and after melting, namely extruding pelletization obtains material A;
(2) preparation of B is expected:
All raw materials of material B are taken by the weight part of constitutive material, the each raw material except glass fibre getting B material is placed in high-speed mixer and mixing 3-5min, the mixture obtained adds in twin screw extruder through main spout, glass fibre adds twin screw extruder by weight from side spout, controlled working temperature is at 230-245 DEG C, screw rod revolution is at 350-500rpm, and after melting, namely extruding pelletization obtains material B;
(3) mixed injection molding:
Material A and material B is carried out drying treatment by after proportioning mixing, and drying temperature is 80-90 DEG C, and time of drying is 5-7 hour, then joins in injection moulding machine; The temperature of injection moulding machine heating zone is set: first paragraph 280 ± 5 DEG C, second segment 275 ± 5 DEG C, the 3rd section 270 ± 5 DEG C, the 4th section 265 ± 5 DEG C, the 5th section 260 ± 5 DEG C; Injection moulding section molding technique parameter is as follows:
A, first paragraph adopt the middle pressure of 45-55Mpa, the medium velocity injection of 40-50m/s, and inject time is 1.0-1.5 second, and injection glue amount is to the 73-78% of product;
B, second segment adopt the middle pressure of 55-60Mpa, the medium velocity injection of 40-50m/s, and inject time is 0.8-1.2 second, and injection glue amount is to 100% of water port of product;
(4) finally shaping, the demoulding, to obtain final product.
3. central electrical box of automobile cover plate according to claim 1, it is characterized in that, described attapulgite modified preparation technology is: first use 15-20% salt acid soak attapulgite 1-2 hour, leaves standstill, clarification, centrifugal, solid washed with water is to neutral, and after oven dry, it is even to add the 3-aminopropyl trimethoxysilane agitating being equivalent to solid weight 3-5%, dry, be ground into powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295112.5A CN102993721B (en) | 2012-08-17 | 2012-08-17 | Cover plate of central electric box of automobile and manufacture method of cover plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295112.5A CN102993721B (en) | 2012-08-17 | 2012-08-17 | Cover plate of central electric box of automobile and manufacture method of cover plate |
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| CN102993721A CN102993721A (en) | 2013-03-27 |
| CN102993721B true CN102993721B (en) | 2015-03-25 |
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| CN201210295112.5A Active CN102993721B (en) | 2012-08-17 | 2012-08-17 | Cover plate of central electric box of automobile and manufacture method of cover plate |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103382292A (en) * | 2013-06-26 | 2013-11-06 | 安徽祈艾特电子科技有限公司 | Environment-friendly automobile distributor cover |
| CN103382286A (en) * | 2013-06-26 | 2013-11-06 | 安徽祈艾特电子科技有限公司 | Enhanced automobile distributor cap |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110217495A1 (en) * | 2002-08-27 | 2011-09-08 | Ems-Chemie Ag | Polyamide moulding materials for the production of moulded articles having reduced surface carbonization |
| CN101885914B (en) * | 2010-07-13 | 2012-06-20 | 东莞市意普万工程塑料有限公司 | Composite material special for automobile engine oil pan and preparation method thereof |
| CN102516641A (en) * | 2011-11-23 | 2012-06-27 | 安徽宜万丰电器有限公司 | Plastic bracket for automobile and manufacturing method thereof |
| CN102516645B (en) * | 2011-11-23 | 2013-07-24 | 安徽宜万丰电器有限公司 | Automotive engine harness guard plate and manufacturing method thereof |
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Denomination of invention: Cover plate of central electric box of automobile and manufacture method of cover plate Effective date of registration: 20190628 Granted publication date: 20150325 Pledgee: Huizhou Commercial Bank Co., Ltd. Wuhu Zhongshan South Road Branch Pledgor: Anhui Kaidi Electrical Co., Ltd. Registration number: 2019340000339 |
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Date of cancellation: 20211104 Granted publication date: 20150325 Pledgee: Huizhou Commercial Bank Co.,Ltd. Wuhu Zhongshan South Road Branch Pledgor: Anhui Kaidi Electric Co.,Ltd. Registration number: 2019340000339 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |