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Applicable method of mold application for integral molding of satellite scanning mirror mounting frame

A technology for scanning mirrors and mounting frames, applied in applications, frames, home appliances, etc., can solve the problems of a single mounting frame structure, the inability to effectively locate the reinforcing ribs, and the inability to compact the pressure gradient structure, so as to improve the positioning accuracy and The degree of compaction, reducing the difficulty of moulding, and increasing the effect of stability

Active Publication Date: 2021-11-30
SHANGHAI COMPOSITES SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the mounting frame molds of the overall one-shot satellite scanning mirror are mostly a single female / male mold opening structure or a relatively simple planar structure, and the sandwich method is usually used to fill the base material, which leads to a single mounting frame structure; secondly, in During the molding process, the mold cannot evenly apply pressure to the internal structure, and the existence of the pressure gradient makes the middle part of the structure unable to be compacted, which will seriously affect the structural rigidity of the satellite scanning mirror; again, because the base material partially filled by the mandrel cannot be positioned accurately , resulting in the inability of some of the ribs to be effectively positioned, which will have an important impact on the structure of the satellite scanning mirror installation frame

Method used

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  • Applicable method of mold application for integral molding of satellite scanning mirror mounting frame
  • Applicable method of mold application for integral molding of satellite scanning mirror mounting frame
  • Applicable method of mold application for integral molding of satellite scanning mirror mounting frame

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Experimental program
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Effect test

Embodiment approach

[0064] Taking an overall one-time molding satellite scanning mirror installation frame mold as an example, see the attached figure 1 , 2 , 3, 4, the mold includes 1, profile 2, filling material 3, filling material positioning device 4.

[0065] 1. Mold material selection

[0066] S1. The mold is integrally welded with Q235.

[0067] 2. Mold design

[0068] S2. Determine the molding reference plane, and then determine the remaining molding surfaces through optimization to ensure a stable and reliable closed mold structure with molding quality.

[0069] S3. Design the inner silicone rubber according to the inner cavity structure, and keep the silicone rubber expansion blank scoring line and the steel core positioning hole on the closed mold.

[0070] S4. Design the silicone rubber positioning steel core according to the internal silicone rubber form and the closed mold form. The steel core is fixed on the outer mold by screws and evenly distributed around the mold.

[0071]...

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Abstract

The invention provides a mold application method suitable for the integral molding of the mounting frame of a satellite scanning mirror, comprising the following steps: mold construction step: constructing a female mold and a male mold; wherein, when the female mold and the male mold are closed, a closed mold is formed, and the closed mold is closed A closed space is formed inside the mold; silicone rubber filling step: filling the closed space with silicone rubber of a designed size; compression ratio adjustment step: adjusting the compression ratio and / or expansion pressure of the silicone rubber through any or all of the following schemes. The structure form of the closed mold filled with silicone rubber adopted by the present invention increases the possibility of integral one-time molding of the complex structure of the mounting frame of the satellite scanning mirror, and improves the adaptability of the forming mold.

Description

technical field [0001] The invention relates to the field of molds, in particular to an application method of a mold suitable for integral molding of a satellite scanning mirror mounting frame. Background technique [0002] The installation frame is an important part of the satellite scanning mirror, and its quality directly affects the accuracy level of the mirror. In order to ensure that the overall space envelope diameter of the satellite scanning mirror installation frame is about 1.8m, the flatness of the installation reference plane is better than 0.01mm, the parallelism between the references is better than 0.01mm, and the angle accuracy needs to be guaranteed to ±0.01°. In order to ensure the imaging stability requirements, the vacuum outgassing requirements are an order of magnitude higher than that of conventional satellite structures. [0003] The traditional metal material frame has inherent characteristics of thermal expansion and contraction, which affects the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/46B29C70/54B29C33/38B29L12/00
CPCB29C33/3835B29C33/3842B29C70/462B29C70/54B29L2012/00
Inventor 柯常宜潘韵史文峰章宇界刘启抱李鹏欣周栋谢忠清曹恒秀
Owner SHANGHAI COMPOSITES SCI & TECH CO LTD
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