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Exhaust method for thermosetting forming process

A molding process and vent hole technology, which is applied in the field of thermosetting molding process venting, can solve problems such as poor control of venting, and achieve the effects of shortening hot-press curing time, reducing venting procedures, and shortening processing time

Inactive Publication Date: 2018-06-15
QINGDAO YIYU GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the technical problem that the exhaust of the above-mentioned thermosetting material molding process is difficult to control, and proposes a method for exhausting the thermosetting molding process with reasonable design, simple method, convenient operation and automatic exhaust.

Method used

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  • Exhaust method for thermosetting forming process

Examples

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Effect test

Embodiment 1

[0019] Example 1, such as figure 1 As shown, this embodiment provides a method for exhausting the thermosetting molding process

[0020] This embodiment aims to solve the exhaust problem existing in the exhaust process of the existing thermosetting molding process. Therefore, this embodiment improves the mold itself in order to achieve the purpose of automatic exhaust. To this end, this embodiment provides a method for exhausting heat during the thermosetting molding process.

[0021] The method for exhausting the thermosetting molding process provided by this embodiment first provides an exhaust hole on the mold wall of the mold, specifically, an exhaust hole 2 is opened at the center of the wall thickness of the mold 1 or at a position upward from the center The main purpose of opening the vent hole 2 at this position is to ensure the stability of the overall structure of the mold, and to uniformly process the deep gap 3 on the inner surface of the mold. The width of the de...

Embodiment 2

[0025] Example 2, such as figure 1 As shown, this embodiment provides a method for exhausting the thermosetting molding process

[0026] This embodiment aims to solve the problems existing in the exhaust process of the existing thermosetting molding process. Therefore, this embodiment improves the mold itself in order to achieve the purpose of automatic exhaust. To this end, this embodiment provides a method for exhausting heat during the thermosetting molding process.

[0027] The method for exhausting the thermosetting molding process provided by this embodiment first provides an exhaust hole on the mold wall of the mold, specifically, an exhaust hole 2 is opened at the center of the wall thickness of the mold 1 or at a position upward from the center The main purpose of opening the vent hole 2 at this position is to ensure the stability of the overall structure of the mold 1, and to uniformly process deep gaps on the inner surface of the mold 1. The width of the deep gap 3...

Embodiment 3

[0031] Example 3, such as figure 1 As shown, this embodiment provides a method for exhausting the thermosetting molding process

[0032] This embodiment aims to solve the problems existing in the exhaust process of the existing thermosetting molding process. Therefore, this embodiment improves the mold itself in order to achieve the purpose of automatic exhaust. To this end, this embodiment provides a method for exhausting heat during the thermosetting molding process.

[0033] The method for exhausting the thermosetting molding process provided by this embodiment first opens the exhaust hole 2 on the mold wall of the mold 1, specifically, opens the exhaust hole 2 at the center of the wall thickness of the mold 1 or at a position upward from the center. Hole 2, opening vent hole 2 at this position is mainly to ensure the stability of the overall structure of the mold 1, and uniformly process the deep gap 3 on the inner surface of the mold 1. The width of the deep gap 3 is bet...

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Abstract

The invention belongs to the technical field of thermoset material processing, and particularly relates to an exhaust method for a thermosetting forming process. The method includes the following effective steps that a, exhaust holes are formed in the mould wall of a mould, wherein the exhaust holes at least run through one end of the mould wall; b, a plurality of deep gaps which are uniformly distributed and have a width ranging from 0.2 mm to 0.3 mm are formed in the inner surface of the mould; c, the deep gaps are communicated with the exhaust holes. According to the exhaust method for thethermosetting forming process, the exhaust holes formed in the mould wall of the mould are used in cooperation with the deep gaps formed in the inner surface of the mould, the deep gaps and the exhaust holes form unique leakage-free exhaust passages at high temperature and high pressure, barrier-free exhaust of vapor at high temperature and high pressure is achieved, and thus the purpose of exhaust is achieved while the thermosetting time is shortened; meanwhile, the exhaust procedure is omitted by using the method, so that the processing time is shortened, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of thermosetting material processing, and in particular relates to a method for exhausting air in a thermosetting molding process. Background technique [0002] Thermosetting materials are materials that use thermosetting resin as the main component, together with various necessary additives, to form products through the cross-linking and curing process. In the early stage of the manufacturing or molding process, thermosetting adhesives are added in powder or granular form, and then shaped after heat curing. Common thermosetting glues include phenolic glue, urea-formaldehyde glue, isocyanate and inorganic glue. [0003] The thermosetting molding process will add glue, and the glue will generate water vapor during the heating and curing process. Because the mold is closed under high pressure, the steam will be locked by the mold and cannot be released. Only when the mold is opened, the steam will be released...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/10
CPCB29C33/10
Inventor 董作彬
Owner QINGDAO YIYU GRP CO LTD
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