CN106393733A - 一种实心壁复合材料雷达罩的制造方法 - Google Patents

一种实心壁复合材料雷达罩的制造方法 Download PDF

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CN106393733A
CN106393733A CN201611089310.0A CN201611089310A CN106393733A CN 106393733 A CN106393733 A CN 106393733A CN 201611089310 A CN201611089310 A CN 201611089310A CN 106393733 A CN106393733 A CN 106393733A
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semi
finished product
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mold
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郭蕊娜
高翔
陈小丽
马军
黄红初
辛洪南
李延平
梅钦海
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Jiangxi Hongdu Aviation Industry Group Co Ltd
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    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/462—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • B29C70/683—Pretreatment of the preformed part, e.g. insert

Abstract

本发明涉及一种实心壁复合材料雷达罩的制造方法，其步骤如下：1）制造阴模和阳模，在阴模上铺叠玻璃布预浸料；2）将阴模密封；3）进行保温保压固化，最后降温卸压启模；4）切割余量，用丙酮擦洗半成品内表面，将半成品放入阴模；5）在雷达罩半成品内表面涂刷一层制作玻璃布预浸料所用的胶粘剂，在雷达罩半成品内表面铺叠两层玻璃布预浸料；6）即阴阳合模；7）将阴阳合模密封；8）加温加压固化成型，卸压启模。采用阴阳合模热压罐加温加压固化，阴阳合模形式使得雷达罩的厚度得到精确的控制，热压罐固化工艺使雷达罩内部结构均一度也得到了保证，保证了雷达罩的电性能要求，一次达到雷达罩的最终状态要求，缩短了生产周期，降低了成本。

Description

一种实心壁复合材料雷达罩的制造方法
技术领域
本发明涉及雷达罩制造领域，特别是涉及一种实心壁复合材料雷达罩的制造方法。
背景技术
实心壁雷达罩的制造方法，目前常采用的有二种方法：方法一是阳模成型配合电厚度测量及外形磨削加工；方法二是RTM成型工艺配合电厚度喷涂校正设备。方法一存在经磨削后电厚度测量合格的雷达罩仍需要在其外表面喷漆防护涂层，防护涂层对雷达罩最终的电性能影响很大，而表面涂层喷涂过后已不能进行雷达罩的厚度磨削；方法二存在雷达罩内部结构均一度差，且喷涂引入新介质，新介质的出现影响雷达罩的电性能。这两种制造方法均因在制造过程中要对雷达罩进行电厚度测量和再加工，致使生产周期长、制造成本高。
发明内容
本发明的目的是针对上述的不足和缺陷，提供一种实心壁复合材料雷达罩的制造方法，能缩短生产周期，降低生产成本，提高雷达罩的电性能。
为实现本发明的目的，本发明采用的技术方案为：
一种实心壁复合材料雷达罩的制造方法，其步骤如下：
1）制造阴模和阳模，在阴模上铺叠玻璃布预浸料，铺叠层数=A-2；
式中，A表示为图样要求的雷达罩铺叠层数；
2）用密封材料、透气材料、隔离材料、吸胶材料和真空袋组装将铺贴有预浸料的阴模密封，并在热压罐中进行抽真空气密性检查，保持真空度大于-0.096Mpa；
3）按照（1℃-3℃）/min升温速率升温至125℃-135℃，保温45min-60min，在树脂凝胶时间段加0.6MPa-0.8MPa的气压后保压升温至145℃-155℃，保温保压60min后，继续升温至190℃-200℃，保温保压120min后停止加热，以小于等于2℃/min的降温速率降温至60℃以下卸压起模；
4）切割雷达罩半成品翻边部分余量，用丙酮擦洗雷达罩半成品内表面，晾干15min以上，将雷达罩半成品放入阴模；
5）在雷达罩半成品内表面涂刷一层制作玻璃布预浸料所用的胶粘剂，晾干30min以上，在雷达罩半成品内表面铺叠两层玻璃布预浸料；
6）将阳模、阴模及已铺叠完毕的雷达罩半成品组装，即阴阳合模；
7）用密封材料、透气材料、隔离材料、吸胶材料和真空袋组装将阴阳合模密封，并在热压罐中进行抽真空气密性检查，保持真空度大于-0.096Mpa；
8）按照(1℃-3℃)/min升温速率升温至125℃-135℃，保温45min-60min，在树脂凝胶时间段加0.6MPa-0.8MPa的气压后保压升温至145℃-155℃，保温保压60min后，继续升温至190℃-200℃，保温保压120min后停止加热，以小于等于2℃/min的降温速率降温至60℃以下卸压起模。
本发明的有益效果：采用阴阳合模热压罐加温加压固化，阴阳合模形式使得雷达罩的厚度得到精确的控制，热压罐固化工艺使雷达罩内部结构均一度也得到了保证，进而保证了雷达罩的电性能要求，且不需在中间工序引入电厚度测量和雷达罩厚度再加工，一次达到雷达罩的最终状态要求，缩短了生产周期，降低了制造成本。
附图说明
图1为本发明中阴阳合模结构示意图。
附图标记：玻璃布预浸料1、阴模2、阳模3。
具体实施方式
下面结合附图和实施例对本发明进一步说明：
实施例：参见图1。
一种实心壁复合材料雷达罩的制造方法，其步骤如下：
制造阴模和阳模，在阴模内表面铺叠EW210/HY2001玻璃布预浸料，铺贴分为两次，第一次铺叠层数＝A-2层（A为图样要求的雷达罩铺层数）；
在已完成第一次铺叠的阴模内放置密封材料、吸胶材料、隔离材料及透气材料和真空袋密封在阴模端面，进热压罐进行零件的气密性检查，保持真空度大于-0.096Mpa；
然后按照（1℃-3℃）/min升温速率升温至125℃-135℃，保温45min-60min，加0.6MPa-0.8MPa的气压后保压升温至145℃-155℃，保温保压60min后，继续升温至190℃-200℃，保温保压120min后停止加热，以小于等于2℃/min的降温速率降温至60℃以下卸压起模；
切割掉部分余量，以便完成第二次铺贴后阴模与阳模合模，并测量此雷达罩半成品的厚度；
用干净的抹布蘸取丙酮清洗雷达罩半成品内表面，晾干15min以上，将雷达罩半成品放入阴模；
在雷达罩半成品内表面涂刷一层用丙酮溶解好的HY2001胶粘剂，晾干30min以上；
进行第二次铺叠，在雷达罩半成品内表面铺叠剩余的两层EW210/HY2001玻璃布预浸料，将阴模、阳模及已完成铺叠的雷达罩半成品组装成真空袋密封系统，阴阳合模形式使得雷达罩的厚度得到精确的控制；
进热压罐进行零件的气密性检查，保持真空度大于-0.096Mpa，热压罐固化工艺使雷达罩内部结构均一度也得到了保证，进而保证了雷达罩的电性能要求，且不需在中间工序引入电厚度测量和雷达罩厚度再加工，一次达到雷达罩的最终状态要求，缩短了生产周期，降低了制造成本；
然后按照（1℃-3℃）/min升温速率升温至125℃-135℃，保温45min-60min，在树脂凝胶时间段加0.6MPa-0.8MPa的气压后保压升温至145℃-155℃，保温保压60min后，继续升温至190℃-200℃，保温保压120min后停止加热，以小于等于2℃/min的降温速率降温至60℃以下卸压起模。
本发明的实施例公布的是较佳的实施例之一，但也不局限于此，本领域的普通技术人员，极易根据上述实施例，领会本发明的精神，并做出不同的引申和变化，但只要不脱离本发明的精神，都在本发明的保护范围内。

Claims (1)

1.一种实心壁复合材料雷达罩的制造方法，其特征步骤如下：
1）制造阴模和阳模，在阴模上铺叠玻璃布预浸料，铺叠层数=A-2；
式中，A表示为图样要求的雷达罩铺叠层数；
2）用密封材料、透气材料、隔离材料、吸胶材料和真空袋组装将铺贴有预浸料的阴模密封，并在热压罐中进行抽真空气密性检查，保持真空度大于-0.096Mpa；
3）按照（1℃-3℃）/min升温速率升温至125℃-135℃，保温45min-60min，在树脂凝胶时间段加0.6MPa-0.8MPa的气压后保压升温至145℃-155℃，保温保压60min后，继续升温至190℃-200℃，保温保压120min后停止加热，以小于等于2℃/min的降温速率降温至60℃以下卸压起模；
4）切割雷达罩半成品翻边部分余量，用丙酮擦洗雷达罩半成品内表面，晾干15min以上，将雷达罩半成品放入阴模；
5）在雷达罩半成品内表面涂刷一层制作玻璃布预浸料所用的胶粘剂，晾干30min以上，在雷达罩半成品内表面铺叠两层玻璃布预浸料；
6）将阳模、阴模及已铺叠完毕的雷达罩半成品组装，即阴阳合模；
7）用密封材料、透气材料、隔离材料、吸胶材料和真空袋组装将阴阳合模密封，并在热压罐中进行抽真空气密性检查，保持真空度大于-0.096Mpa；
8）按照（1℃-3℃）/min升温速率升温至125℃-135℃，保温45min-60min，在树脂凝胶时间段加0.6MPa-0.8MPa的气压后保压升温至145℃-155℃，保温保压60min后，继续升温至190℃-200℃，保温保压120min后停止加热，以小于等于2℃/min的降温速率降温至60℃以下卸压起模。
CN201611089310.0A 2016-12-01 2016-12-01 一种实心壁复合材料雷达罩的制造方法 Pending CN106393733A (zh)

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CN112026205A (zh) * 2020-08-20 2020-12-04 四川一诺高分子材料科技有限公司 一种共性雷达天线罩的制造方法

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CN104441678A (zh) * 2014-09-30 2015-03-25 湖北三江航天江北机械工程有限公司 异型结构宽频透波树脂基天线罩的制备方法
CN105172165A (zh) * 2015-09-14 2015-12-23 江西洪都航空工业集团有限责任公司 一种毫米波天线罩的厚度修正方法

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