CN103203882A - Packaging method for prepreg glass cloth test piece blank before curing - Google Patents
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- CN103203882A CN103203882A CN2013100623830A CN201310062383A CN103203882A CN 103203882 A CN103203882 A CN 103203882A CN 2013100623830 A CN2013100623830 A CN 2013100623830A CN 201310062383 A CN201310062383 A CN 201310062383A CN 103203882 A CN103203882 A CN 103203882A
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- 239000004744 fabric Substances 0.000 title claims abstract description 127
- 239000011521 glass Substances 0.000 title claims abstract description 86
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 8
- 238000002955 isolation Methods 0.000 claims abstract description 38
- 238000005538 encapsulation Methods 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000003566 sealing material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 60
- 239000003292 glue Substances 0.000 description 4
- 239000010985 leather Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Abstract
本发明属于复合材料制造技术，涉及一种预浸玻璃布试片毛坯固化前的封装方法。封装的步骤是：铺下层无孔隔离膜；铺下层干玻璃布；铺下层扒皮布；铺预浸玻璃布试片毛坯；铺上层扒皮布；铺上层干玻璃布；铺上层无孔隔离膜；铺透气毡；封真空袋。本发明提出了一种改进的预浸玻璃布试片毛坯固化前的封装方法，确保了固化后试片厚度符合要求。
The invention belongs to the composite material manufacturing technology, and relates to a packaging method of a prepreg glass cloth test piece blank before solidification. The steps of packaging are: laying the lower layer of non-porous isolation film; laying the lower layer of dry glass cloth; laying the lower layer of peeling cloth; laying the pre-preg glass cloth test piece blank; laying the upper layer of peeling cloth; laying the upper layer of dry glass cloth; Spread air felt; seal vacuum bag. The invention provides an improved encapsulation method of the prepreg glass cloth test piece blank before curing, which ensures that the thickness of the test piece after curing meets the requirements.
Description
技术领域technical field
本发明属于复合材料制造技术，涉及一种预浸玻璃布试片毛坯固化前的封装方法。The invention belongs to the composite material manufacturing technology, and relates to a packaging method of a prepreg glass cloth test piece blank before solidification.
背景技术Background technique
某型直升机用的型号为ECS0037-256的复合材料是一种非结构应用的、120℃固化的预浸环氧树脂玻璃布，主要用于尾减、下部整流罩、前舱罩蒙皮等非结构件。材料入厂后需要复验层间剪切强度。检验试片使用该型预浸环氧树脂玻璃布铺层后封装真空袋，然后固化。图1是现有封装方法封装的固化前预浸玻璃布试片毛坯封装结构剖视图，现有的封装步骤是：The composite material ECS0037-256 used for a certain type of helicopter is a non-structural application, pre-impregnated epoxy resin glass cloth cured at 120 ° C, mainly used for tail reduction, lower fairing, front canopy skin and other non-structural applications. Structure. After the material enters the factory, it is necessary to retest the interlaminar shear strength. The test piece is laminated with this type of pre-impregnated epoxy resin glass cloth, sealed in a vacuum bag, and then cured. Fig. 1 is the cross-sectional view of the package structure of the prepreg glass cloth test piece blank before curing packaged by the existing package method, and the existing package steps are:
1、铺预浸玻璃布试片毛坯：将预浸玻璃布试片毛坯2直接铺在工装1的上表面上；1. Spreading the pre-impregnated glass cloth test piece blank: directly spread the pre-impregnated glass cloth test piece blank 2 on the upper surface of the
2、铺扒皮布：在预浸玻璃布试片毛坯2上平铺一层扒皮布4，扒皮布4的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；2. Laying leather cloth: Spread a layer of
3、铺无孔隔离膜3：在扒皮布4平铺一层无孔隔离膜3，无孔隔离膜3的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；3. Laying a non-porous isolation film 3: spread a layer of
4、铺透气毡：在无孔隔离膜上铺透气毡5，透气毡5的尺寸大于预浸玻璃布试片毛坯2的尺寸；4. Spread air felt: spread air felt 5 on the non-porous isolation film, the size of air felt 5 is larger than the size of pre-impregnated glass cloth test piece blank 2;
5、封真空袋：将真空袋7覆盖在透气毡5的外面，使用密封材料7将真空袋7的边缘与工装1的上表面上密封粘接起来。5. Seal the vacuum bag: cover the
经过复验，该型预浸环氧树脂玻璃布试片的中层间剪切强度不合格，经分析认为，原因在于现有的封装工艺方法保证不了试片的厚度要求导致试片过厚，造成层间剪切强度不合格。因此，需要对现有封装方法进行改进。After re-inspection, the interlayer shear strength of this type of pre-impregnated epoxy resin glass cloth test piece is unqualified. After analysis, it is believed that the reason is that the existing packaging process method cannot guarantee the thickness of the test piece and the test piece is too thick. The interlaminar shear strength is unqualified. Therefore, there is a need to improve existing packaging methods.
发明内容Contents of the invention
本发明的目的是：提出一种改进的预浸玻璃布试片毛坯固化前的封装方法，以确保固化后试片厚度符合要求。The object of the present invention is to propose an improved encapsulation method of the prepreg glass cloth test piece blank before curing, so as to ensure that the thickness of the test piece after curing meets the requirements.
本发明的技术方案是：一种预浸玻璃布试片毛坯固化前封装方法，将完成铺层的预浸环氧树脂玻璃布试片毛坯封装真空袋，以便进行固化，封装的步骤是：The technical scheme of the present invention is: a method for encapsulating the pre-impregnated glass cloth test piece blank before curing, in which the laminated pre-impregnated epoxy resin glass cloth test piece blank is packaged in a vacuum bag so as to be cured, and the packaging steps are:
1、铺下层无孔隔离膜：在工装1的上表面上平铺一层无孔隔离膜3形成下层无孔隔离膜，无孔隔离膜3的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；1. Lay the lower layer of non-porous isolation film: lay a layer of
2、铺下层干玻璃布：在无孔隔离膜3上平铺2层～4层未预浸环氧树脂的干玻璃布8形成下层干玻璃布，干玻璃布8的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；2. Lay the lower layer of dry glass cloth: Lay 2 to 4 layers of dry glass cloth 8 not pre-impregnated with epoxy resin on the
3、铺下层扒皮布：在干玻璃布8上平铺一层扒皮布4形成下层扒皮布，扒皮布4的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；3. Lay the lower layer of peeling cloth: spread a layer of peeling
4、铺预浸玻璃布试片毛坯：将预浸玻璃布试片毛坯2铺在下层扒皮布上；4. Spread the pre-impregnated glass cloth test piece blank: spread the pre-impregnated glass cloth test piece blank 2 on the lower skinning cloth;
5、铺上层扒皮布：在预浸玻璃布试片毛坯2上再平铺一层扒皮布4形成上层扒皮布，上层扒皮布的尺寸与下层扒皮布相同；5. Spread the upper layer of peeling cloth: spread a layer of peeling
6、铺上层干玻璃布：在上层扒皮布上再平铺2层～4层干玻璃布8形成上层干玻璃布，上层干玻璃布的尺寸和层数与下层干玻璃布的尺寸和层数相同；6. Lay the upper layer of dry glass cloth: Spread 2 to 4 layers of dry glass cloth on the upper layer of peeling cloth to form the upper layer of dry glass cloth. The size and number of layers of the upper layer of dry glass cloth are the same as those of the lower layer of dry glass cloth same;
7、铺上层无孔隔离膜：在上层干玻璃布上再平铺一层无孔隔离膜3形成上层无孔隔离膜，上层无孔隔离膜的尺寸与下层无孔隔离膜相同；7. Spread the upper layer of non-porous isolation film: spread a layer of
8、铺透气毡：在上层无孔隔离膜上铺透气毡5，透气毡5的尺寸大于预浸玻璃布试片毛坯2的尺寸；8. Spread air felt: spread air felt 5 on the upper non-porous isolation film, the size of air felt 5 is larger than the size of pre-impregnated glass cloth test piece blank 2;
9、封真空袋：将真空袋7覆盖在透气毡5的外面，使用密封材料7将真空袋7的边缘与工装1的上表面上密封粘接起来。9. Seal the vacuum bag: cover the
本发明的优点是：提出了一种改进的预浸玻璃布试片毛坯固化前的封装方法，确保了固化后试片厚度符合要求。采用本发明后，经过复验，该型预浸环氧树脂玻璃布试片的中层间剪切强度合格。The invention has the advantages of providing an improved encapsulation method of the prepreg glass cloth test piece blank before curing, which ensures that the thickness of the test piece after curing meets the requirements. After adopting the present invention, after retesting, the interlayer shearing strength of this type of pre-impregnated epoxy resin glass cloth test piece is qualified.
附图说明Description of drawings
图1是现有封装方法封装的固化前预浸玻璃布试片毛坯封装结构剖视图。Fig. 1 is a cross-sectional view of the encapsulation structure of a pre-preg glass cloth test piece blank packaged before curing by an existing encapsulation method.
图2是本发明方法封装的固化前预浸玻璃布试片毛坯封装结构剖视图。Fig. 2 is a cross-sectional view of the encapsulation structure of the prepreg glass cloth test piece blank packaged before curing by the method of the present invention.
具体实施方式Detailed ways
下面对本发明做进一步详细说明。参见图2，一种预浸玻璃布试片毛坯固化前封装方法，将完成铺层的预浸环氧树脂玻璃布试片毛坯封装真空袋，以便进行固化，封装的步骤是：The present invention will be described in further detail below. Referring to Fig. 2, a method of encapsulating pre-impregnated glass cloth test piece blanks before curing, the pre-impregnated epoxy resin glass cloth test piece blanks that have been laminated are packaged in vacuum bags for curing, and the steps of packaging are:
1、铺下层无孔隔离膜：在工装1的上表面上平铺一层无孔隔离膜3形成下层无孔隔离膜，无孔隔离膜3的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；1. Lay the lower layer of non-porous isolation film: lay a layer of
2、铺下层干玻璃布：在无孔隔离膜3上平铺2层～4层未预浸环氧树脂的干玻璃布8形成下层干玻璃布，干玻璃布8的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；2. Lay the lower layer of dry glass cloth: Lay 2 to 4 layers of dry glass cloth 8 not pre-impregnated with epoxy resin on the
3、铺下层扒皮布：在干玻璃布8上平铺一层扒皮布4形成下层扒皮布，扒皮布4的轮廓尺寸不小于预浸玻璃布试片毛坯2的轮廓尺寸；3. Lay the lower layer of peeling cloth: spread a layer of peeling
4、铺预浸玻璃布试片毛坯：将预浸玻璃布试片毛坯2铺在下层扒皮布上；4. Spread the pre-impregnated glass cloth test piece blank: spread the pre-impregnated glass cloth test piece blank 2 on the lower skinning cloth;
5、铺上层扒皮布：在预浸玻璃布试片毛坯2上再平铺一层扒皮布4形成上层扒皮布，上层扒皮布的尺寸与下层扒皮布相同；5. Spread the upper layer of peeling cloth: spread a layer of peeling
6、铺上层干玻璃布：在上层扒皮布上再平铺2层～4层干玻璃布8形成上层干玻璃布，上层干玻璃布的尺寸和层数与下层干玻璃布的尺寸和层数相同；6. Lay the upper layer of dry glass cloth:
7、铺上层无孔隔离膜：在上层干玻璃布上再平铺一层无孔隔离膜3形成上层无孔隔离膜，上层无孔隔离膜的尺寸与下层无孔隔离膜相同；7. Spread the upper layer of non-porous isolation film: spread a layer of
8、铺透气毡：在上层无孔隔离膜上铺透气毡5，透气毡5的尺寸大于预浸玻璃布试片毛坯2的尺寸；8. Spread air felt: spread air felt 5 on the upper non-porous isolation film, the size of air felt 5 is larger than the size of pre-impregnated glass cloth test piece blank 2;
9、封真空袋：将真空袋7覆盖在透气毡5的外面，使用密封材料7将真空袋7的边缘与工装1的上表面上密封粘接起来。9. Seal the vacuum bag: cover the
本发明的工作原理是：干玻璃布比扒皮布具有更强的吸胶性。对于一般的预浸布普通扒皮布吸胶就可以达到测试厚度，但ECS0037-256这种预浸布铺层方式用普通扒皮布吸胶达不到效果，本发明中通过用不同的干玻璃布层数铺层试验，找出固化后能达到合适的测试厚度的方案为最终的铺层方式。The working principle of the present invention is: the dry glass cloth has stronger glue-absorbing property than the peeling cloth. For general prepreg fabrics, the thickness of the test can be achieved by absorbing glue with ordinary peeling cloth, but the ECS0037-256 prepreg laying method cannot achieve the effect with ordinary peeling cloth. In this invention, different dry glass cloths are used Layer layup test, to find out the solution that can reach the appropriate test thickness after curing is the final layup method.
实施例1Example 1
按照本发明铺两层玻璃布吸胶的方式对试板铺层固化。固化后将试片取三点测厚，分别为：3.05，3.01，3.03。平均值为3.03，厚度符合3±0.2mm的要求。According to the method of laying two layers of glass cloth to absorb glue according to the present invention, the test plate is laid and solidified. After curing, the thickness of the test piece is measured at three points, which are: 3.05, 3.01, 3.03. The average value is 3.03, and the thickness meets the requirement of 3±0.2mm.
实施例2Example 2
按照本发明铺两层玻璃布吸胶的方式对试板铺层固化。固化后将试片取三点测厚，分别为：3.00，3.02，3.04。平均值为3.02，厚度符合3±0.2mm的要求。According to the method of laying two layers of glass cloth to absorb glue according to the present invention, the test plate is laid and solidified. After curing, the thickness of the test piece is measured at three points, which are: 3.00, 3.02, 3.04. The average value is 3.02, and the thickness meets the requirement of 3±0.2mm.
实施例3Example 3
按照本发明铺两层玻璃布吸胶的方式对试板铺层固化。固化后将试片取三点测厚，分别为：2.98，3.02，3.00。平均值为3.0，厚度符合3±0.2mm的要求。According to the method of laying two layers of glass cloth to absorb glue according to the present invention, the test plate is laid and solidified. After curing, the thickness of the test piece is measured at three points, which are: 2.98, 3.02, 3.00. The average value is 3.0, and the thickness meets the requirement of 3±0.2mm.
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Cited By (6)
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| CN104401092A (en) * | 2014-11-18 | 2015-03-11 | 江苏恒神纤维材料有限公司 | Method for enabling carbon fiber composite thick laminated structure to uniformly absorb resin and laminated structure |
| CN108000901A (en) * | 2017-12-06 | 2018-05-08 | 上海复合材料科技有限公司 | A kind of forming method suitable for satellite composite material antenna installing plate |
| CN112373062A (en) * | 2020-10-19 | 2021-02-19 | 广联航空工业股份有限公司 | Method for realizing skid resistance, sweat releasing and shock absorption of composite material surface |
| CN112793186A (en) * | 2020-12-15 | 2021-05-14 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A method for preventing poor glue or pinholes on the surface of non-autoclave vacuum bag forming composite materials |
| CN116021797A (en) * | 2023-01-28 | 2023-04-28 | 哈尔滨远驰航空装备有限公司 | Mold for air inlet channel pipe type part structure and molding process |
| CN116674231A (en) * | 2023-07-12 | 2023-09-01 | 江苏恒神股份有限公司 | A method for improving the internal quality of non-autoclave molded parts and its application |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104401092A (en) * | 2014-11-18 | 2015-03-11 | 江苏恒神纤维材料有限公司 | Method for enabling carbon fiber composite thick laminated structure to uniformly absorb resin and laminated structure |
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| CN108000901A (en) * | 2017-12-06 | 2018-05-08 | 上海复合材料科技有限公司 | A kind of forming method suitable for satellite composite material antenna installing plate |
| CN112373062A (en) * | 2020-10-19 | 2021-02-19 | 广联航空工业股份有限公司 | Method for realizing skid resistance, sweat releasing and shock absorption of composite material surface |
| CN112793186A (en) * | 2020-12-15 | 2021-05-14 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A method for preventing poor glue or pinholes on the surface of non-autoclave vacuum bag forming composite materials |
| CN116021797A (en) * | 2023-01-28 | 2023-04-28 | 哈尔滨远驰航空装备有限公司 | Mold for air inlet channel pipe type part structure and molding process |
| CN116674231A (en) * | 2023-07-12 | 2023-09-01 | 江苏恒神股份有限公司 | A method for improving the internal quality of non-autoclave molded parts and its application |
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Application publication date: 20130717 |