CN102886883A - Automobile air intake injector assembly and production process - Google Patents
Automobile air intake injector assembly and production process Download PDFInfo
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- CN102886883A CN102886883A CN2012104086337A CN201210408633A CN102886883A CN 102886883 A CN102886883 A CN 102886883A CN 2012104086337 A CN2012104086337 A CN 2012104086337A CN 201210408633 A CN201210408633 A CN 201210408633A CN 102886883 A CN102886883 A CN 102886883A
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Abstract
The invention discloses a production process of an air intake injector assembly. The production process comprises the following steps of: after mixing PA612 resin and stem grafting POE (polyolefin elastomer), adding the mixture into a twin-screw extruder, extruding material strips through a nose, cooling, grain-sized dicing, and extruding parison by the extruder after heating for dehumidification, wherein a tube wall is controlled to be 1.15-1.35 mm; and placing the parison into a mould tank for high-temperature steam setting with the steam temperature of 160-170 DEG C and the pressure of 0.7-0.8 MPa, after setting for 30-40 seconds, cooling for 20-30 seconds by using cooling purified water, and blowing away moisture in a tube body by using high-pressure gas to obtain a product. The production process adopts high-temperature steam for directly setting the spatial size of the produced product, thus avoiding the problem that the product quality can be affected by product performance aging or failure of setting to produce rebound as the temperature is not easy to control in electric heating for setting.
Description
Technical field
The present invention discloses a kind of air inlet injector assembly and production technology, relates to the improvement to existing air inlet injector production technology, belongs to tubular workpiece injection moulding production technical field.
Background technology
At present, in the injection moulding production technical field, when producing complex-shaped hollow tubular workpiece, normally adopt lost core process: the shape of at first pressing the workpiece product is made mould, but be made into core with the hot melt material again, by injection machine directly injection mo(u)lding in mould, then, form product with taking out after the core fusing, it is simple that this method has moulding, once makes the characteristics of product, but injection molding mould development difficulty is very large, hot melt core cost of manufacture is also higher, therefore, has directly affected the production cost of workpiece.
Conventional pipe forming technique (the optimised process standard is 160 ~ 170) is to adopt the electrical heating typing, and shortcoming is that setting temperature is wayward, and during excess Temperature, properties of product are aging; Crossing low production can not finalize the design, and produces resilience, affects product function.
Air inlet injector assembly is the accessory that automobile weight is wanted, and is a kind of complex-shaped hollow part, adopts lost core process production to make its production cost high, has affected the selling price of car.
Summary of the invention
The present invention discloses a kind of air inlet injector assembly production technology, and existing fusible core injection moulding production technology is improved, and has simplified production technology, has reduced production cost.
Air inlet injector assembly production technology provided by the invention, concrete technical solution is as follows:
1, with under 90-110 ℃ of condition of PA612 resin heating and dehumidification 2-3 hour, again with grafting POE(ethylene-octene copolymer) in 10:(1.0-0.8) ratio mix after, throw in the double screw extruder, extrude material strip, cooling, pelletizing through head, under 90-110 ℃ of condition heating and dehumidification 2-3 hour again, by extruder extrusion type embryo, its tube wall is controlled between 1.15-1.35mm, determines the extrusion molding temperature: 220-230 ℃ in I district, 250-260 ℃ in II district, 260-270 ℃ in III district, 260-270 ℃ in IV district, head: 260-270 ℃;
2, the type embryo is placed in the mold slots, the high-temperature steam typing, the temperature of steam is 160 ℃-170 ℃, pressure 0.7 ~ 0.8Mpa, shaping time are 30-40 after second, and the cooling pure water cools off 20-30 second, gases at high pressure are blown away the moisture content in the body, time spent 2-3 second, namely get product.
Good effect of the present invention is:
By adopting high-temperature steam directly to finalize the design to PA612 resin modified and product space size, avoided the electrical heating setting temperature wayward, cause properties of product to wear out and maybe can not finalize the design, produce resilience, the problem that affects product quality occurs.The present invention has simplified production process, has improved efficient, guarantees that properties of product are stable.The characteristics such as the air inlet injector body good mechanical property of producing, dimensionally stable, design freedom be large, simplify production process and installation procedure, interchangeability is good, and efficient is high, cost is low, investment is little can be carried out industrialization.
The specific embodiment
By following examples the present invention is described for example further, and do not limit the present invention in any way, under the prerequisite that does not deviate from technical solution of the present invention, any change or change that those of ordinary skills that the present invention is done realize easily all will fall within the claim scope of the present invention.
Embodiment 1
1, with heating and dehumidification under 90-110 ℃ of condition of PA612 resin 3 hours, again with grafting POE(ethylene-octene copolymer) mix in the ratio of 10:1 after, throw in the TE-75 type double screw extruder, extrude material strip, cooling, pelletizing through head, throw into the C-30 extruder after 3 hours through 100 ℃ of heating and dehumidifications again, extrude behind the air inlet injector cast embryo tube wall and control its tube wall and be controlled between 1.15-1.35mm; Determine the extrusion molding temperature according to the machine-shaping situation: 220-230 ℃ in I district, 250-260 ℃ in II district, 260-270 ℃ in III district, 260-270 ℃ in IV district, head: 260-270 ℃, should rationally control and respectively distinguish temperature, if temperature is too low, the pipe fitting lustrous surface is poor, temperature too during high moulding the tube wall thickness wayward.
2, air inlet injector cast embryo is placed in the mold slots of being processed by the 3D data, the high-temperature steam typing, the temperature of steam is 160 ℃-170 ℃, pressure 0.7 ~ 0.8Mpa, after shaping time was 30 seconds, the cooling pure water cooled off 20 seconds, and gases at high pressure are blown away the moisture content in the body, time spent 2-3 second, namely get product.
Embodiment 2
1, with PA612 resin (under the 90-110 ℃ of condition heating and dehumidification 2-3 hour, again with grafting POE(ethylene-octene copolymer) mix in the ratio of 10:0.8 after, throw into TE-75 type double screw extruder, extrude material strip, cooling, pelletizing through head, throw into the C-30 extruder after 3 hours through 100 ℃ of heating and dehumidifications again, extrude behind the air inlet injector cast embryo tube wall and control its tube wall and be controlled between 1.15-1.35mm.Determine the extrusion molding temperature according to the machine-shaping situation: 220-230 ℃ in I district, 250-260 ℃ in II district, 260-270 ℃ in III district, 260-270 ℃ in IV district, head: 260-270 ℃;
2, air inlet injector body is placed in the mold slots of being processed by the 3D data, the high-temperature steam typing, the temperature of steam is 160 ℃-170 ℃, pressure 0.7 ~ 0.8Mpa, after shaping time was 40 seconds, the cooling pure water cooled off 30 seconds, and gases at high pressure are blown away the moisture content in the body, time spent 2-3 second, namely get product.
The service check index is as follows:
| The test performance title | The technical standard index | Embodiment 1 | Embodiment 2 |
| Density | 1.05±0.02g/cm3 | 1.06 | 1.05 |
| Yield point stress | ≥27MPa | 42 | 45 |
| Elongation at break | ≥60% | 104 | 110 |
| Cryogenic property (40 ℃) | Crack-free | Crack-free | ? |
| Hot property (110 ℃) | Profile is unchanged | Crack-free | ? |
Claims (2)
1. air inlet injector assembly production technology may further comprise the steps:
With under 90-110 ℃ of condition of PA612 resin heating and dehumidification 2-3 hour, again with grafting POE(ethylene-octene copolymer) in 10:(1.0-0.8) ratio mix after, throw in the double screw extruder, extrude material strip, cooling, pelletizing through head, under 90-110 ℃ of condition heating and dehumidification 2-3 hour again, by extruder extrusion type embryo, its tube wall is controlled between 1.15-1.35mm, determines the extrusion molding temperature: 220-230 ℃ in I district, 250-260 ℃ in II district, 260-270 ℃ in III district, 260-270 ℃ in IV district, head: 260-270 ℃;
The type embryo is placed in the mold slots, the high-temperature steam typing, the temperature of steam is 160 ℃-170 ℃, pressure 0.7 ~ 0.8Mpa, shaping time are 30-40 after second, and the cooling pure water cools off 20-30 second, gases at high pressure are blown away the moisture content in the body, time spent 2-3 second, namely get product.
2. the product produced of the described air inlet injector of claim 1 assembly production technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104086337A CN102886883A (en) | 2012-10-24 | 2012-10-24 | Automobile air intake injector assembly and production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104086337A CN102886883A (en) | 2012-10-24 | 2012-10-24 | Automobile air intake injector assembly and production process |
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| CN102886883A true CN102886883A (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012104086337A Pending CN102886883A (en) | 2012-10-24 | 2012-10-24 | Automobile air intake injector assembly and production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531766A (en) * | 2020-05-07 | 2020-08-14 | 上海迅美工业设备有限公司 | Automobile pipeline steam forming furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895870A (en) * | 2006-06-13 | 2007-01-17 | 上海必安必汽车配件制造有限公司 | Fast steam formation and former for plastic flexible pipe |
| CN101851416A (en) * | 2010-04-21 | 2010-10-06 | 白山市浩阳汽车零部件有限公司 | Truck engine oil adding pipe assembly and production process |
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2012
- 2012-10-24 CN CN2012104086337A patent/CN102886883A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895870A (en) * | 2006-06-13 | 2007-01-17 | 上海必安必汽车配件制造有限公司 | Fast steam formation and former for plastic flexible pipe |
| CN101851416A (en) * | 2010-04-21 | 2010-10-06 | 白山市浩阳汽车零部件有限公司 | Truck engine oil adding pipe assembly and production process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531766A (en) * | 2020-05-07 | 2020-08-14 | 上海迅美工业设备有限公司 | Automobile pipeline steam forming furnace |
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Application publication date: 20130123 |