CN102873800B - Method for carrying out vacuumized manufacturing on upper dies by using light resin transfer molding process - Google Patents
Method for carrying out vacuumized manufacturing on upper dies by using light resin transfer molding process Download PDFInfo
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- CN102873800B CN102873800B CN201210395312.8A CN201210395312A CN102873800B CN 102873800 B CN102873800 B CN 102873800B CN 201210395312 A CN201210395312 A CN 201210395312A CN 102873800 B CN102873800 B CN 102873800B
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- wax disk
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Abstract
The invention discloses a method for carrying out vacuumized manufacturing on upper dies by using a light resin transfer molding process, which belongs to the technical field of glass fiber reinforced plastic production. In the method, a vacuumizing device is added, one end of a plastic pipe of the vacuumizing device is connected with a split joint, and the other end of the plastic pipe is connected with a vacuum box; and the split joint is placed at an air extraction point on a female die wax-scale. The method comprises the steps of (1) sticking the wax-scale; (2) setting the vacuumizing device; and (3) manufacturing an upper die: opening the vacuum box to vacuumize, when the vacuum degree is 20ingh, laying a fiber laminate on the wax-scale so as to manufacture the upper die, carrying out vacuumization on the upper die until the upper die is solidified and demolded, thereby guaranteeing that the thickness of a die cavity between a female die and the upper die is consistent. The method disclosed by the invention solves the problems that because the thickness of a die cavity between a female die and an upper die which is manufactured by using the existing methods is inconsistent, the thickness of a manufactured product is inconsistent, and can be used just after being repaired, thereby wasting manpower and materials, and the like.
Description
Technical field
The invention belongs to fiberglass production technical field.
Background technology
While making the patrix of light-duty resin transfer molding (RTM) process at present, first on former, press product thickness and paste wax disk(-sc), while pasting ground floor wax disk(-sc), for the ease of operation, cut into fritter, then the docking of one one, stagger in seam and the upper strata of the second layer, every layer is all pasted according to this principle, last whole wax disk(-sc) for one deck, every wax disk(-sc) docking, guarantee can not have gap, then start to make patrix, fortifying fibre lamination, after all having spread, cure and demold, the patrix that this method is made, when lamination solidifies, heat release meeting makes wax disk(-sc) perk distortion, die cavity variable thickness between former and patrix is caused, cause the product thickness made inconsistent, need to repair and could use, lost labor and material.
Summary of the invention
The object of the invention is to vacuumize the method for making patrix for a kind of light-duty resin transfer molding (RTM) process, cause with the die cavity variable thickness solving between former and the patrix that existing method makes, cause the product thickness made inconsistent, need to repair and could use, lost labor and material.
It is to increase vacuum extractor that the present invention solves the technical scheme that its problem adopts, and plastic tube one end of vacuum extractor connects split joint, and the other end connects vacuum tank; Split joint is put into the bleed off passage place on former wax disk(-sc).Its method step is as follows:
1, paste wax disk(-sc): first on former, press product thickness and paste wax disk(-sc), ground floor wax disk(-sc) cuts into fritter, and every fritter wax disk(-sc) is attached on former, stays certain gap between every, paste after ground floor wax disk(-sc), with cardboard doubling, the gap of every fritter is drawn evenly, ensure gap intercommunication, the seam of the second layer and upper strata wax disk(-sc) stagger, every layer is all pasted according to this principle, last one deck wax disk(-sc) is with whole, and every wax disk(-sc) docks, and guarantee can not have gap;
2, vacuum extractor is set: in the middle of former, establish a bleed off passage, the wax disk(-sc) at bleed off passage place is cut to an aperture, lead to ground floor, put split type joint at aperture place, use plastic tube that split type joint is connected with vacuum tank;
3, make patrix: open vacuum tank and vacuumize, vacuum is extracted into 20ingh, and lay fiber pad is made patrix on wax disk(-sc), vacuumize until stop when cure and demold, can ensure like this die cavity consistency of thickness of former and upper intermode.
Adopt good effect of the present invention to be: the die cavity variable thickness having solved between patrix and the former that existing method makes causes, cause the product thickness made inconsistent, need to repair and could use, the problems such as lost labor and material.
Brief description of the drawings
Further the present invention is illustrated below in conjunction with accompanying drawing and enforcement:
Accompanying drawing 1 is structural representation of the present invention;
1 former, 2 ground floor wax disk(-sc)s, 3 last one deck wax disk(-sc)s, 4 plastic tubes, 5 split type joints, 6 patrixes, 7 gaps, 8 vacuum tanks in figure.
Detailed description of the invention
As shown in the figure: plastic tube 4 one end of vacuum extractor connect split joint 5, and the other end connects vacuum tank 8; Split joint 5 is put into the bleed off passage place on former 1 wax disk(-sc).Concrete grammar step: first press product thickness and paste wax disk(-sc) on former 1, ground floor wax disk(-sc) 2 cuts into fritter, every fritter wax disk(-sc) is attached on former, between every, stay certain gap 7, paste after ground floor wax disk(-sc) 2, with cardboard doubling by 7 strokes, the gap of every fritter evenly, ensure gap 7 intercommunications, the seam of the second layer and upper strata wax disk(-sc) stagger, every layer is all pasted according to this principle, whole of last one deck wax disk(-sc) 3 use, every wax disk(-sc) docking, guarantee can not have gap, in the middle of former 1, establish a bleed off passage, the wax disk(-sc) at bleed off passage place is cut to an aperture, lead to ground floor, put split type joint 5 at aperture place, split type joint 5 is connected with vacuum tank 8 with plastic tube 4, opening vacuum tank 8 vacuumizes, vacuum is extracted into 20inhg, on wax disk(-sc), lay fiber pad is made patrix 6, vacuumize until stop when cure and demold, can ensure like this die cavity consistency of thickness between former 1 and patrix 6, the die cavity variable thickness of utilizing the method to solve between patrix 6 and the former 1 that existing method makes causes, cause the product thickness made inconsistent, need to repair and could use, lost labor and material phenomenon.
Claims (1)
1. light-duty resin transfer molding (RTM) process vacuumizes a method of making patrix, it is characterized in that increasing vacuum extractor, and plastic tube one end of vacuum extractor connects split joint, and the other end connects vacuum tank; Split joint is put into the bleed off passage place on former wax disk(-sc); Its method step is as follows:
(1) paste wax disk(-sc): first on former, press product thickness and paste wax disk(-sc), ground floor wax disk(-sc) cuts into fritter, and every fritter wax disk(-sc) is attached on former, stays certain gap between every, paste after ground floor wax disk(-sc), with cardboard doubling, the gap of every fritter is drawn evenly, ensure gap intercommunication, the seam of the second layer and upper strata wax disk(-sc) stagger, every layer is all pasted according to this principle, last one deck wax disk(-sc) is with whole, and every wax disk(-sc) docks, and guarantee can not have gap;
(2) vacuum extractor is set: in the middle of former, establish a bleed off passage, the wax disk(-sc) at bleed off passage place is cut to an aperture, lead to ground floor, put split joint at aperture place, use plastic tube that split joint is connected with vacuum tank;
(3) make patrix: open vacuum tank and vacuumize, vacuum is extracted into 20inHg, and lay fiber pad is made patrix on wax disk(-sc), vacuumize until stop when cure and demold, can ensure like this die cavity consistency of thickness of former and upper intermode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210395312.8A CN102873800B (en) | 2012-10-18 | 2012-10-18 | Method for carrying out vacuumized manufacturing on upper dies by using light resin transfer molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210395312.8A CN102873800B (en) | 2012-10-18 | 2012-10-18 | Method for carrying out vacuumized manufacturing on upper dies by using light resin transfer molding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873800A CN102873800A (en) | 2013-01-16 |
| CN102873800B true CN102873800B (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210395312.8A Active CN102873800B (en) | 2012-10-18 | 2012-10-18 | Method for carrying out vacuumized manufacturing on upper dies by using light resin transfer molding process |
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| CN (1) | CN102873800B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612401A (en) * | 2013-10-29 | 2014-03-05 | 山东双一集团有限公司 | Method for making logo on interior surface of glass fiber reinforced plastic product |
| CN110435187B (en) * | 2019-08-12 | 2021-04-30 | 山东双一科技股份有限公司 | LRTM mold and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1190261A (en) * | 1965-03-17 | 1970-04-29 | C F Taylor Plastics Ltd | Improvements in or relating to Laminated Plastics Constructions |
| GB2319205A (en) * | 1996-11-13 | 1998-05-20 | Alan Roger Harper | Process for the manufacture of a mould tool |
| US6491855B1 (en) * | 2000-06-06 | 2002-12-10 | Alan Roger Harper | Moulding tooling |
| CN1672894A (en) * | 2005-01-07 | 2005-09-28 | 北京玻钢院复合材料有限公司 | Making process of composite inserted mold lining |
| CN101357497A (en) * | 2008-08-20 | 2009-02-04 | 昆山道谱思复合材料有限公司 | Production method of glass fiber reinforced plastics product with cleavage lines effect |
| CN101934564A (en) * | 2010-09-16 | 2011-01-05 | 三一电气有限责任公司 | Shearing rib male die, manufacture method thereof, female die and blades |
| CN102407606A (en) * | 2010-09-20 | 2012-04-11 | 江苏环球龙圣环境科技发展有限公司 | Thin shell cabin cover die for wind-driven generator and manufacturing method thereof |
-
2012
- 2012-10-18 CN CN201210395312.8A patent/CN102873800B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1190261A (en) * | 1965-03-17 | 1970-04-29 | C F Taylor Plastics Ltd | Improvements in or relating to Laminated Plastics Constructions |
| GB2319205A (en) * | 1996-11-13 | 1998-05-20 | Alan Roger Harper | Process for the manufacture of a mould tool |
| US6491855B1 (en) * | 2000-06-06 | 2002-12-10 | Alan Roger Harper | Moulding tooling |
| CN1672894A (en) * | 2005-01-07 | 2005-09-28 | 北京玻钢院复合材料有限公司 | Making process of composite inserted mold lining |
| CN101357497A (en) * | 2008-08-20 | 2009-02-04 | 昆山道谱思复合材料有限公司 | Production method of glass fiber reinforced plastics product with cleavage lines effect |
| CN101934564A (en) * | 2010-09-16 | 2011-01-05 | 三一电气有限责任公司 | Shearing rib male die, manufacture method thereof, female die and blades |
| CN102407606A (en) * | 2010-09-20 | 2012-04-11 | 江苏环球龙圣环境科技发展有限公司 | Thin shell cabin cover die for wind-driven generator and manufacturing method thereof |
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| CN102873800A (en) | 2013-01-16 |
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Owner name: SHANDONG SHUANGYI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGDONG SHUANGYI GROUP CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Xinhua Industrial Park in Shandong Province, two road 253000 Dezhou City No. 1 Patentee after: SHANDONG SHUANGYI TECHNOLOGY CO., LTD. Address before: Xinhua Industrial Park in Shandong Province, two road 253000 Dezhou City No. 1 Patentee before: Shandong Shuangyi Group Co., Ltd. |