RTM wet molding process of plate body

A board body and process technology, applied in the field of RTM wet molding process of the board body, can solve the problems of not being able to reduce the processing steps of the board body, unfavorable tightness of the internal connection of the board body, and increasing the service life of the board body itself, so as to achieve The raw material processing steps are simple, the processing and mixing effect is good, and the effect of improving the firming effect

Active Publication Date: 2021-11-26
安徽纳赫智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an RTM wet molding process for the board body, which has the advantages of reducing the manufacturing cost of the board body, improving the service life of the board itself, and increasing the firmness of the board body, and solving the problem of In the process of traditional automobile panel processing, the steps of panel processing cannot be reduced, and the processing can be performed more quickly to reduce the cost of panel manufacturing. At the same time, the general molding process is not conducive to improving the internal pressure of the panel The tightness of the connection cannot increase the service life of the board itself, and reduces the problem of the robustness of the board body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of RTM wet molding process of plate body, comprises the following steps:

[0022] 1) Stack the pre-processed fabrics sequentially from top to bottom. According to specific needs, 5-8 layers can be stacked. Coat each layer of the fabric with the previously prepared reinforcement resin and wet it. The laminated fabric is transferred to the hot mold, the hot-pressing temperature is 120°C-200°C, the hot-pressing pressure is 6Mpa, and the hot-pressing time is 8-10min;

[0023] 2) Take out the laminated and reinforced fabric, cut off the excess external part, inject a certain thickness of reinforcement resin into the mold, let it stand for 10 minutes, and then place the laminated fabric into the mold, and the inner bottom of the mold The two sides fit each other, and then move the upper end of the mold up by 0.5mm-1mm, and at the same time increase the HP-RTM injection pressure to 90bar, and then inject the reinforcement resin evenly into the mold to a certain thicknes...

Embodiment 2

[0027] A kind of RTM wet molding process of plate body, comprises the following steps:

[0028] Stack the pre-processed fabrics from top to bottom. According to specific needs, 5-8 layers can be stacked. Coat each layer of the fabric with the previously prepared reinforcing resin and wet it. The layer of fabric is transferred to the hot mold, the hot-pressing temperature is 130°C-190°C, the hot-pressing pressure is 8Mpa, and the hot-pressing time is 12-14min;

[0029] 2) Take out the laminated and reinforced fabric, cut off the excess external part, inject a certain thickness of reinforcing resin into the mold, let it stand for 15 minutes, and then place the laminated fabric into the mold, and the inner bottom of the mold The ends of the mold are fitted together, and then the upper end of the mold is moved up by 0.5mm-1mm, and the HP-RTM injection pressure is increased to 100bar, and then the reinforcement resin is evenly injected into the mold to a certain thickness, and the ...

Embodiment 3

[0033] A kind of RTM wet molding process of plate body, comprises the following steps:

[0034] Stack the pre-processed fabrics from top to bottom in sequence. According to specific needs, 5-8 layers can be stacked. Each layer of the fabric is coated with a previously prepared reinforcing resin and wet, and then the wet stack The first layer of fabric is transferred to the hot mold, the hot pressing temperature is 140°C-180°C, the hot pressing pressure is 10Mpa, and the hot pressing time is 8-10min;

[0035] 2) Take out the laminated and reinforced fabric, cut off the excess external part, inject a certain thickness of reinforcement resin into the mold, let it stand for 20 minutes, and then place the laminated fabric into the mold, and the inner bottom of the mold The ends fit each other, and then move the upper end of the mold up by 0.5mm-1mm, and at the same time increase the HP-RTM injection pressure to 110bar, and then inject the reinforcement resin evenly into the mold to...

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Abstract

The invention relates to the technical field of automobile manufacturing, and discloses an RTM wet molding process of a plate body. The RTM wet molding process comprises the following steps of sequentially stacking pre-processed fabrics from top to bottom, stacking 5-8 layers according to specific requirements, coating each layer of the fabrics with previously blended reinforcing resin to be wet, and transferring the wetted laminated fabric into a hot mold. According to the RTM wet molding process of the plate body, in the using process, reinforcing resin prepared in the plate body is fully mixed with various different resin materials and carbonized fibers, the firmness effect of the plate body are improved, , heat resistance, cold resistance, water resistance and adhesion resistance are achieved, the practicability of a vehicle body is improved, the reinforcing effect in the plate body is further improved through the carbonized fibers, the service life of the plate body is prolonged, and meanwhile, the mode of pressurizing injection after a mold is moved upwards can help to solve the problem that the plate body is not firm enough due to bubbles in the forming process of the plate body.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to an RTM wet molding process of a plate body. Background technique [0002] Automobile is a vehicle that can be driven by its own power, and can be driven by motor without the need for rails or electric power. In a broad sense, a vehicle driven by its own mechanical energy is generally called a car. A car is generally composed of four basic parts: an engine, a chassis, a body and electrical equipment. System composition: crank connecting rod mechanism, gas distribution mechanism, cooling system, fuel supply system, lubrication system, ignition system, and starting system, but the diesel engine has one less ignition system than the gasoline engine, and the role of the chassis is to support and install the automobile engine and its components The assembly forms the overall shape of the car and receives the power of the engine to make the car move and ensure normal d...

Claims

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Application Information

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IPC IPC(8): B29C70/48B29C70/54B29L7/00
CPCB29C70/48B29C70/54B29L2007/002
Inventor 肖璐胡根杰刘成杰
Owner 安徽纳赫智能科技有限公司
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