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Preparation process of co-solidification molding of metal and composite material flywheel

A technology of composite materials and solidification molding, which is applied in the direction of household appliances, other household appliances, household components, etc., can solve the problems of low structure and surface quality, poor quality of metal-composite bonding, etc., to avoid dynamic balance drift, Guaranteed performance and improved molding accuracy

Active Publication Date: 2021-01-08
SHANGHAI JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the bonding quality of metal-composite materials is poor, the structure and surface quality visible to the naked eye are not high, and the dynamic balance has drifted to a certain extent after high and low temperature tests

Method used

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  • Preparation process of co-solidification molding of metal and composite material flywheel
  • Preparation process of co-solidification molding of metal and composite material flywheel
  • Preparation process of co-solidification molding of metal and composite material flywheel

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Embodiment Construction

[0026]This embodiment includes the following steps:

[0027]Step 1) The raw material adopts M40JB / 602 hot-melt method prepreg, with a single layer thickness of 0.1mm. The layout is carried out according to the ply design, and the layout requires accurate size to ensure that the prepreg has a high utilization rate.

[0028]Step 2) The silicone rubber is R10301 silicone rubber. In the preparation process of the silicone rubber soft film, firstly mix the components A and B of the silicone rubber, and then cure it at room temperature for 24 hours; after the curing is completed, put the silicone rubber mold into an oven for heat treatment at a temperature of 150°C and heat preservation for 6 hours. It is required that the finished silicone rubber mold has a Shore hardness of 30-40 and a linear expansion coefficient of 2.5-2.8×10-4 / K.

[0029]Step 3) Prepare a ring-shaped preform at the hub in advance, with a layer thickness of 20mm, after the paving is completed, it is covered with rubber suction...

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Abstract

Provided is a preparation process of co-curing molding of a metal and composite flywheel. The metal and composite co-curing flywheel is divided into five areas, single-way prepreg laying is conductedin corresponding area of a forming mold according to the respective laying modes, an annular prefab is wrapped, a metal rim is buckled after laying, and curing molding is conducted, so that the metaland composite flywheel is obtained. The preparation process can meet the requirements of the flywheel for the rotation inertia error, dynamic equilibrium mass and high-speed rotation stability.

Description

Technical field[0001]The invention relates to a technology in the field of composite material processing, in particular to a preparation process for co-curing and molding of metal and composite material flywheels.Background technique[0002]In recent years, foreign research on satellite flywheels has mainly focused on the integration of flywheel energy storage and attitude control functions. A variety of integrated energy storage and attitude control flywheels have been successfully developed; the use of composite materials has the characteristics of greater tensile strength, The CFRP material is made into the rim by the winding method, which greatly increases the limit speed of the wheel body, and greatly improves the energy storage density of the flywheel. At the same time, due to the integration of energy storage and attitude control, a large amount of space and mass of stars are saved.[0003]The composite material in the existing composite material and metal composite structure fly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/30B29C70/54B29C35/02B29L31/30
CPCB29C35/02B29C70/30B29C70/54B29L2031/3097
Inventor 陈明蔡晓江左静静唐宏亮安庆龙沈丽峰
Owner SHANGHAI JIAOTONG UNIV
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