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A Soft Membrane Assisted Forming Method for I-beams with Variable Sections Containing Corrugated Edge Plates

A technology of auxiliary molding and changing section, applied in household components, household appliances, other household appliances, etc., can solve the problems of long molding time, many defects, low work efficiency, etc., achieve uniform pressure, improve product quality, and avoid a lot of loose effect

Active Publication Date: 2018-08-21
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved by the present invention: In order to overcome the deficiencies of the prior art, a soft film-assisted molding method for variable cross-section I-beams with corrugated edge plates is provided to solve the problem of many defects in previous products, long molding time, and difficult work. The problem of low efficiency

Method used

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  • A Soft Membrane Assisted Forming Method for I-beams with Variable Sections Containing Corrugated Edge Plates
  • A Soft Membrane Assisted Forming Method for I-beams with Variable Sections Containing Corrugated Edge Plates
  • A Soft Membrane Assisted Forming Method for I-beams with Variable Sections Containing Corrugated Edge Plates

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Embodiment 1

[0048] Product Name: Reinforced Beam I~V (7 states in total)

[0049] Specific size: the total length is 400-585mm. According to the number of ribs that match the shell, the 3 / 5mm thick corrugated edge plate has 7-11 corrugated depressions, and the deep / shallow depression depths are 14.5mm and 9mm respectively. The web thickness Gradually change from 6mm to 11mm, the thickness of the flat edge plate gradually changes from 5mm to 7mm, and all transition corners are R9 rounded corners.

[0050] Implementation steps:

[0051] (1) According to the expansion of 9% silicone rubber body, determine the linear expansion of silicone rubber soft film 5 along the product length direction (X axis), product width direction (Y axis) and product height direction (Z axis), design silicon rubber Rubber casting mold 4 sizes. Aircast3700 silicone rubber raw material is selected, mixed according to the weight ratio of components A and B of 100:12, poured after defoaming for 20 minutes, covered w...

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Abstract

The invention discloses a soft mold auxiliary forming method for a variable section I-beam containing a corrugated flange plate. According to the soft mold auxiliary forming method for the variable section I-beam containing the corrugated flange plate, the non-closed form that a metal mold and a silicon rubber mold are combined is adopted; the silicon rubber soft mold is wrapped inside the metal mold; corrugated flange plate side pressurizing (internal pressure) is conducted through heat expansion of the silicon rubber soft mold, the hot pressing tank (external pressure) forming process is combined, and internal and external two-way pressurizing is conducted, so that the pressure applied to a complex section is uniform and controllable, integral curing forming of the composite variable section I-beam containing the corrugated flange plate is well achieved, and the problem that a corrugated structure is not easy to pressurize is solved.

Description

technical field [0001] The invention relates to a soft-membrane auxiliary forming method for a variable-section I-beam with a corrugated edge plate, which realizes the manufacture of a variable-section I-beam with a corrugated edge plate, and belongs to the technical field of composite material structure forming technology. Background technique [0002] The integral molding technology of composite materials is a related technology that greatly reduces the number of parts and fasteners by means of co-curing or co-gluing, so as to realize the integrated molding of composite materials from design to manufacture. The overall molding includes the most commonly used technologies such as co-curing, co-bonding, and secondary bonding. This technology can give full play to the designability advantages of composite materials, reduce the local damage caused by fasteners such as screws to composite materials, and play an important role in reducing the cost of composite materials and impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/30B29C70/54B29C69/02B29L31/30
CPCB29C69/02B29C70/30B29C70/54B29L2031/30
Inventor 王乐辰李健芳李桂洋孔庆祥李纯
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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