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A process method for vacuum infusion molding of composite material thick parts

A technology of vacuum infusion and molding process, which is applied in the direction of household components, applications, household appliances, etc. It can solve the problem of whitening under the flow channel, achieve quality resolution, ensure infusion efficiency, and improve quality

Active Publication Date: 2020-03-31
中材科技(萍乡)风电叶片有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the roots of large-scale wind power blades are prone to whitening under the flow channel after vacuum infusion molding, the invention proposes a method for vacuum infusion molding of thick composite materials

Method used

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  • A process method for vacuum infusion molding of composite material thick parts
  • A process method for vacuum infusion molding of composite material thick parts
  • A process method for vacuum infusion molding of composite material thick parts

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Embodiment Construction

[0032] In the following, the present invention will be described in detail and specifically through specific examples, so as to better understand the present invention, but the following examples do not limit the scope of the present invention.

[0033] The embodiment of the present invention firstly provides a vacuum infusion molding process for composite material thick parts, which specifically includes the following steps: (1) laying a reinforced glass fiber fabric layer on the mold according to the product structure design; (2) laying a reinforced glass fiber fabric layer on the reinforced glass The surface of the fiber fabric layer is laid with a porous isolation film and a release cloth (not shown in the figure); (3) a diversion net is placed on the surface of the isolation film; (4) a separation material, a diversion tube is placed on the diversion net, and the diversion The surface of the tube is covered with diversion material, and the diversion material is used outsid...

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Abstract

The invention discloses a vacuum perfusion moulding technology method for a composite material thick workpiece. The vacuum perfusion moulding technology method includes the following steps that (1) a reinforced glass fiber fabric layer is laid on a mould; (2) an isolating membrane with holes and demoulding cloth are laid on the surface of the reinforced glass fiber fabric layer; (3) a guide net is placed on the surface of the isolating membrane; (4) a separation material and a guide pipe are placed on the guide net, and the surface of the guide pipe is covered with guide materials; (5) an air pumping pipe is placed in a system and connected with a vacuum pump, and a vacuum bag membrane is sealed by adopting seal glue; (6) the vacuum pump is used for pumping air to make the interior of the system be negative pressure; and (7) vacuum perfusion is conducted, solidification is conducted to mold, and demoulding is conducted. According to the perfusion moulding technology method, the guide pipe does not make directly contact with a blade root glass fiber structure layer by adopting the separation material, the perfusion efficiency and the quality of finished products can be ensured effectively, and the problem that the lower portion of a flow channel gets white after moulding is solved.

Description

technical field [0001] The invention belongs to the field of vacuum infusion, and in particular relates to a process method for vacuum infusion molding of composite material thick parts. Background technique [0002] At present, one of the mainstream manufacturing processes of composite material components is the vacuum-assisted infusion molding process (Vacuumfusion process). The vacuum-assisted infusion molding process has low input costs, and is easy to process products with complex shapes and large structural parts. It has important applications in industries such as wind blades, ships, aerospace and automobile industries. The current vacuum-assisted infusion molding process is as follows: (1) laying glass fiber reinforced fabric according to the design and planning of the finished product structure. (2) Lay diversion nets, diversion pipes, glue inlet hoses, exhaust pipes and diversion nets on the surface of the reinforced fabric, and connect the exhaust pipes to the v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/36B29C70/54B29L31/08
CPCB29C70/36B29C70/54B29L2031/085
Inventor 颜晨薛岭孙志祥李晓玲王洪荣徐远平夏金忠
Owner 中材科技(萍乡)风电叶片有限公司
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