Integral forming die design method for complex carbon fiber stiffener for satellite and die

A technology of integral molding and mold design, applied in home appliances, other home appliances, applications, etc., can solve the problems of too many limits in four directions, unable to meet the requirements of use, increasing negative weight, etc., to achieve the effect of improving feasibility

Active Publication Date: 2020-01-21
SHANGHAI COMPOSITES SCI & TECH CO LTD
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Problems solved by technology

[0004] However, for large-scale and complex ribs, there are many restrictions in the four directions between the steel molds, and it is difficult to close the mold and realize the overall molding.
The use of segmented molding requires additional linking screws and linking parts, which reduces the overall stiffness of the ribs and increases the negative weight, which cannot meet the requirements of use

Method used

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  • Integral forming die design method for complex carbon fiber stiffener for satellite and die
  • Integral forming die design method for complex carbon fiber stiffener for satellite and die

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0035] According to a method for designing a complex carbon fiber reinforcement integral molding die for a satellite provided by the present invention, the method comprises the following steps:

[0036] Limiting step of the outer rib grid: use the outer rigid fence to limit the formation of the outer rib grid;

[0037] Center rib grid positioning step: set the rigid mandrel in each grid rib, so as to locate and limit;

[0038] Soft mold setting steps: set expansion soft mold in the rib grid to ensure t...

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Abstract

The invention provides an integral forming die design method for a complex carbon fiber stiffener for a satellite. The integral forming die design method comprises the following steps of an outer siderib grid limiting step, in which an outer rigid enclosing strip is adopted for limiting to form a peripheral rib grid; a central rib grid positioning step, in which a rigid core mold is arranged in each grid box rib for positioning and limiting; and a soft die arrangement step, in which an expansion soft die is arranged in each rib grid to ensure that the rigid die and the expansion soft die arearranged in the left side and the right side of each stiffener respectively, wherein the interior of each grid box rib refers to the interior of a grid box area formed by the sealed portion in the stiffener in an enclosing manner, and each rigid die comprises an outer rigid enclosing strip and a rigid core die.

Description

technical field [0001] The present invention relates to the technical field of large-size satellite antennas, in particular to a design method and mold for integrally forming complex carbon fiber reinforcement ribs for satellites, and in particular to a design method and mold for integrally forming complex carbon fiber Jiugong ribs for satellites. Background technique [0002] Some antenna structures for satellites require large antenna components due to the use of band requirements. In order to ensure that the antenna components have sufficient rigidity and high precision requirements, it is necessary to add large-sized ribs to improve the overall rigidity. At the same time, under the pressure of weight reduction , Most of the ribs are made of carbon fiber components with high strength, high stiffness and low density. [0003] At present, the carbon fiber structural parts of the small-sized ribs are molded with internal and external steel molds, such as the integral parabol...

Claims

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Application Information

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IPC IPC(8): B29C33/42B29C33/30B29L31/34B29L31/30
CPCB29C33/42B29C33/302B29L2031/3456B29L2031/3097
Inventor 吴文平施静董斌史文锋梁燕民潘韵吴鑫锐韩雯婷翟东坤孙翀梁
Owner SHANGHAI COMPOSITES SCI & TECH CO LTD
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