CN104441690B - 一种贮箱安装板预埋框的成型方法 - Google Patents

一种贮箱安装板预埋框的成型方法 Download PDF

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CN104441690B
CN104441690B CN201410621034.2A CN201410621034A CN104441690B CN 104441690 B CN104441690 B CN 104441690B CN 201410621034 A CN201410621034 A CN 201410621034A CN 104441690 B CN104441690 B CN 104441690B
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CN104441690A (zh
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李世成
叶周军
赵鑫
史文锋
吴文平
刘启抱
潘韵
钱志英
师璐
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Shanghai Composite Material Science and Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping 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
    • B29C70/34Shaping 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
    • B29C70/342Shaping 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/42Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44Shaping 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

Abstract

本发明公开了一种贮箱安装板预埋框的成型方法,包括如下步骤:根据预埋框较厚部位尺寸要求,铺设毛坯结构,采用加热加压固化,得到所需尺寸的毛坯;采用机床或手工加工出所需形状的结构件;将钢模安装在底座上,在钢模型面整体连续铺层,在铺层过程中嵌入单独成型的结构件,外围软模单独铺层;将铺层的软模嵌入相应位置,最后将预留区域铺设完整,装入外围围条,然后整体合模到位;制作真空袋进行预抽处理,然后放入固化装置进行预压,随后加热加压固化;脱掉软模和围条,取出预埋框,清理模具和预埋框表面。本发明采用了独立成型、软模铺层和整体成型相结合的方法,生产出的预埋框质量稳定,力学性能满足设计要求,适用于工程应用。

Description

一种贮箱安装板预埋框的成型方法
技术领域
本发明涉及复合材料结构件的成型方法,具体涉及一种贮箱安装板预埋框的成型方法。
背景技术
贮箱安装板是卫星结构中常用的结构件,其主要功能是为推进系统中的贮箱提供安装接口。贮箱安装板预埋框是贮箱安装板最重要的组成部分,贮箱安装板预埋框要满足卫星发射时贮箱所要求的静、动力学环境,要有足够的刚度、强度、满足贮箱要求的安装精度和尽可能轻的重量。
以往的贮箱安装板其内埋框架多采用金属材料,且结构较简单,无法同时满足卫星结构轻量化,比刚度高,比强度高及特殊的设计要求。
发明内容
为解决上述问题,本发明提供了提出一种贮箱安装板预埋框的成型方法,以克服现有预埋框成型技术的不足和缺陷。
为实现上述目的,本发明采取的技术方案为:
一种贮箱安装板预埋框的成型方法,包括如下步骤:
S1、单独成型:根据预埋框较厚部位尺寸要求,铺设毛坯结构,采用加热加压固化,得到所需尺寸的毛坯;
S2、加工:采用机床或手工加工出所需形状的结构件;
预埋框的整体铺层、装模、热压固化、脱模的成型工艺包括以下步骤:
S3、整体铺层:将钢模安装在底座上,外围围条暂不安装,在钢模型面整体连续铺层,外围铺层区域须预留,并且在铺层过程中嵌入步骤S2所得的单独成型的结构件,外围软模单独铺层;
S4、装模:将铺层的软模嵌入相应位置,最后将预留区域铺设完整,装入外围围条,然后整体合模到位;
S5、热压固化:制作真空袋进行预抽处理,然后放入固化装置进行预压,随后加热加压固化;
S6、脱模:脱掉软模和围条,取出预埋框,清理模具和预埋框表面。
其中,所述步骤S5中的预抽参数为:真空表压-0.08MPa~-0.099MPa,保压时间2~24小时。
其中,所述步骤S5中的预压参数为:温度40~90℃,压力0.2~0.8MPa。
本发明具有以下有益效果:
采用了独立成型、软模铺层和整体成型相结合的方法,生产出的预埋框质量稳定,力学性能满足设计要求,适用于工程应用。
附图说明
图1贮箱安装板预埋框结构示意图。
图2单独成型的部位。
图3预留及软模铺层区域。
[主要元件符号说明]
101、单独成型的结构件Ⅰ;102、单独成型的结构件Ⅱ;103、外围软膜;104外围软膜。
具体实施方式
为了使本发明的目的及优点更加清楚明白,以下结合实施例对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
如图1所示,预埋框结构特点是外围为凸型,内部为凹型,并且结构复杂,成型过程存在很大困难。
实施例
一种贮箱安装板预埋框的成型方法,包括如下步骤:
预埋框较厚部位的单独成型工艺包括以下步骤:
步骤一:单独成型。如图2所示,根据预埋框较厚部位尺寸要求,将16个101部位和8个102部位单独成型,采用加热加压固化,得到所需尺寸的毛坯;
步骤二:加工:采用机床或手工加工出所需形状的结构件Ⅰ和结构件Ⅱ;
预埋框的整体铺层、装模、热压固化、脱模的成型工艺包括以下步骤:
步骤一:整体铺层。将钢模安装在底座上,外围围条暂不安装;在钢模型面整体连续铺层,外围铺层区域须预留(见附图3),并且在铺层过程中嵌入单独成型的结构件Ⅰ和结构件Ⅱ;外围软模103和104单独铺层;
步骤二:装模:将铺层的软模嵌入相应位置,最后将预留区域铺设完整,装入外围围条,然后整体合模到位;
步骤三:热压固化:制作真空袋进行预抽处理,预抽参数:真空表压为-0.08MPa~-0.099MPa,保压时间为2~24小时;然后放入固化装置进行预压,预压参数:温度为40~90℃,压力为0.2~0.8MPa;随后加热加压固化;
步骤四:脱模:脱掉软模和围条,取出预埋框,清理模具和预埋框表面。
将实施例所得的外廓3000mm的贮箱安装板预埋框,依次经过随机及正弦振动试验、热真空试验、模态试验、噪声试验和振动试验处理后,质量稳定,力学性能满足设计要求。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (3)

1.一种贮箱安装板预埋框的成型方法,其特征在于,包括如下步骤:
S1、单独成型:根据预埋框较厚部位尺寸要求,铺设毛坯结构,采用加热加压固化,得到所需尺寸的毛坯;
S2、加工:采用机床或手工将毛坯加工出所需形状的结构件;
S3、整体铺层:将钢模安装在底座上,外围围条暂不安装,在钢模型面整体连续铺层,外围铺层区域须预留,并且在铺层过程中嵌入步骤S2所得的单独成型的结构件,外围软模单独铺层;
S4、装模:将铺层的软模嵌入相应位置,最后将预留区域铺设完整,装入外围围条,然后整体合模到位;
S5、热压固化:制作真空袋进行预抽处理,然后放入固化装置进行预压,随后加热加压固化;
S6、脱模:脱掉软模和围条,取出预埋框,清理模具和预埋框表面。
2.根据权利要求1所述的一种贮箱安装板预埋框的成型方法,其特征在于,所述步骤S5中的预抽参数为:真空表压-0.08MPa~-0.099MPa,保压时间2~24小时。
3.根据权利要求1所述的一种贮箱安装板预埋框的成型方法,其特征在于,所述步骤S5中的预压参数为:温度40~90℃,压力0.2~0.8MPa。
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CN105346732A (zh) * 2015-09-29 2016-02-24 上海卫星工程研究所 薄壁轻型一体化贮箱安装装置及实施方法
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