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LRTM die and manufacturing method thereof

A mold flange and mold technology, applied in the field of LRTM mold and its production, can solve the waste of raw materials and other problems, and achieve the effect of saving production costs

Active Publication Date: 2019-11-12
SHANDONG SHUANGYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a LRTM mold and its manufacturing method, which is used to solve the problem of wasting raw materials in the preparation of discontinuous products in the prior art

Method used

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  • LRTM die and manufacturing method thereof
  • LRTM die and manufacturing method thereof
  • LRTM die and manufacturing method thereof

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Embodiment Construction

[0041] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0042] see Figure 1 to Figure 3 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention provides an LRTM die and a manufacturing method thereof. The LRTM die is applicable to a non-continuity product with an opening formed in the middle. A middle vacuum cavity is formed inthe portion, located on the product opening, of the middle of the LRTM die. A sealing rubber strip is arranged along the edge of a product die cavity. The middle vacuum cavity is provided with an airdrawing nozzle connected with vacuumizing equipment. When the LRTM die is used for preparing the non-continuity composite material product with the opening formed in the middle, the sealing requirement of LRTM is ensured, materials are saved, meanwhile, leftovers are reduced, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to the field of composite material preparation, in particular to an LRTM mold and a manufacturing method thereof. Background technique [0002] Composite material products are widely used in various fields due to their low density, high strength, corrosion resistance, heat insulation and many other advantages. Light Resin Transfer Molding (RTM-Light), also known as LRTM, as a process for making composite products, has become a popular technology in recent years due to its advantages of smooth inner and outer surfaces, high dimensional accuracy, low porosity, and high strength. A fast-growing low-cost closed-mold manufacturing process is currently being used more and more widely in the fields of shipbuilding, automotive, industrial and medical composite materials. [0003] However, there are various structures of composite products, many of which are discontinuous and have openings in the middle. The LRTM process requires that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/54
CPCB29C70/48B29C70/54
Inventor 刘立芳姚建美王庆华
Owner SHANDONG SHUANGYI TECH
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