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Method for forming organic glass curved surface based on steel rope tension

A plexiglass and tension technology, which is applied in the field of aviation product manufacturing, can solve the problems of easy forming failure and uneven force on the glass, and achieve good forming effect, standard glass shape and uniform force

Pending Publication Date: 2021-09-17
CHENGDU JUFENG GLASS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that in the aviation plexiglass molding process in the prior art, the artificial hand-drawn glass is unevenly stressed, resulting in easy molding failure, a method for forming plexiglass curved surfaces based on steel rope tension is provided.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for forming a plexiglass curved surface based on steel rope tension, comprising the steps of:

[0023] a. Production preparation: prepare the forming mold to be used, the tempering mold, the oven, the tension driving device and the tension splint connected with the tension driving device with a steel rope;

[0024] b. Installation: install the forming mold in the oven, install the tension splint on the glass, tighten each bolt on the tension splint, place it on the forming mold after checking that there is no abnormality, and align the center busbar position;

[0025] c. Check before starting up: check whether the switch of the oven system, the heating system and the tension driving device of the steel rope are operating normally;

[0026] d. Processing and forming: open the oven, set the temperature curve required by the product, when the temperature rises to the specified temperature of the product, keep warm as required, and then apply tension by the pulling...

Embodiment 2

[0030] On the basis of Example 1, preferably, in the step b, before the glass is installed on the forming mold, the forming mold is wiped clean with flannelette, and a layer of flannelette is laid on the forming mold, and the tension splint is installed on the glass. On at least two sides, at least two tension splints on one side are installed. A layer of flannelette is placed between the forming mold and the glass to be processed, which can provide a certain buffering effect, and at the same time prevent the glass from being scratched by the mold and affect the product quality.

Embodiment 3

[0032] On the basis of Example 1, preferably, in the step e, the temperature in the oven is lowered to 30°C, the tension splint is removed from the glass, and the glass is taken out for subsequent tempering treatment to avoid secondary deformation of the glass.

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PUM

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Abstract

The invention discloses a method for forming an organic glass curved surface based on steel rope tension, belongs to the technical field of aviation product production, and solves the problem that forming failure is easily caused by uneven stress when aviation organic glass is formed by adopting manual hand pulling. The method comprises the following steps that a, production preparation is carried out, specifically, to-be-used devices and equipment are prepared; b, mounting is carried out, specifically, a forming mold is mounted in a drying oven, a tension clamping plate is mounted on the glass, and the glass is placed on the forming mold; c, checking is carried out before startup, specifically, checking whether each device is normal or not is carried out; d, processing and forming are carried out, specifically, the drying oven is started, heat preservation is carried out according to requirements, and tensile force is applied after heat preservation until the glass is attached to the molded surface of the forming mold; e, cooling is carried out, specifically, a steel rope and a tension clamping plate are unloaded after the temperature in the drying oven is reduced; and f, tempering treatment is carried out, specifically, the glass is placed on a tempering mold, the glass is attached to the periphery of the tempering mold, the drying oven is heated to the corresponding temperature, and heat preservation is conducted for the corresponding time as required. The method is used for automatic curved surface tension forming of organic glass, the glass is stressed uniformly, and the product quality is high.

Description

technical field [0001] The invention belongs to the technical field of aviation product manufacturing, and in particular relates to a method for forming a curved surface of organic glass based on steel rope tension. Background technique [0002] Aviation plexiglass refers to an organic transparent structural material used in aircraft canopies, windshields, cabins, portholes, etc.; it is a plate-shaped product made of methyl methacrylate by bulk polymerization. After being processed into a transparent part, it is installed on the aircraft. It has excellent optics, strength, heat resistance, aging resistance, and ultraviolet resistance, especially the optical distortion and angular displacement are very small. Its compressive strength, impact resistance and bending strength are higher than ordinary plexiglass. Especially the oriented plate, its impact strength is more than twice that of ordinary plexiglass plate, and it also has high resistance to silver cracks and crack exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/08B29C51/26B29C71/02B29C33/72B29C51/42B29L31/30
CPCB29C51/08B29C51/26B29C71/02B29C33/72B29C51/42B29C2071/027B29L2031/3076B29L2031/3052
Inventor 郭自成姚恩钊邱继海刘正张红
Owner CHENGDU JUFENG GLASS LTD