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Method for forming automotive glass bezel, window and mold

An automotive glass and mold technology, applied in windshields, windows, home appliances, etc., can solve the problems of glass edging manufacturing yield decline, injection pressure glass cracking, etc.

Inactive Publication Date: 2018-07-17
SAINT-GOBAIN GLASS FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the increase of injection pressure can easily cause glass breakage, which leads to a decrease in the yield of glass edge manufacturing

Method used

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  • Method for forming automotive glass bezel, window and mold
  • Method for forming automotive glass bezel, window and mold
  • Method for forming automotive glass bezel, window and mold

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Embodiment Construction

[0022] The following defects usually exist in the plasticizing and encapsulating of automotive glass: the plasticizing solution shrinks due to cooling in the mold cavity, so that the size of the glass encapsulation formed by injection molding is smaller than the design specification and sink marks are generated on the product surface. However, in the prior art, the method of increasing the injection pressure is used to suppress the shrinkage, but the increase of the injection pressure easily leads to glass breakage.

[0023] In order to overcome the above drawbacks, the inventors of the present invention formed a plasticized solution (polymer solution) containing bubble nuclei, injected the plasticized solution into a mold for injection molding processing, and formed an automotive glass encapsulation. Due to the existence of bubble nuclei in the plasticizing solution, the fluidity of the solution is high, which reduces the molding temperature during the plasticizing process, so...

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Abstract

A method for forming an automotive glass edge, a vehicle window, and a mold, wherein the method for forming an automotive glass edge includes: forming a polymer solution containing bubble nuclei, the bubble nuclei being formed by a foaming agent; and suppressing the bubble nuclei Injecting the polymer solution containing bubble nuclei into the mold by expanding at least part of the inner wall of the cavity of the mold to perform injection molding treatment, thereby forming the automobile glass encapsulation, the automobile glass encapsulation formed in the present invention There is no color difference and wave pattern on the edge.

Description

technical field [0001] The invention relates to the technical field of glass, in particular to a method for forming an encapsulation of automobile glass, a vehicle window for encapsulation using the method, and a mold for forming an encapsulation of automobile glass. Background technique [0002] Glass edging can increase the sealing between the glass and the car body, reduce the noise generated by the airflow passing between the glass and the car body, improve the safety of the glass, and make the glass more beautiful. [0003] In the Chinese patent application whose publication number is CN102180081A, an automobile rear quarter window assembly is disclosed. refer to figure 1 , shows a schematic diagram of the automobile rear quarter window assembly in the said Chinese patent application. The automobile rear quarter window assembly includes: a glass 11 and a glass encapsulation 12 formed around the glass 11 . The glass edge 12 includes a glue-applied surface 121 , a lip ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14B29C67/20
CPCB29C45/0001B29C45/14B29C45/26B29C44/0407B29L2031/30B29L2031/7782B29C44/42B29C44/588B60J1/00B60J10/70B29C45/14434B29C45/20B29C45/74B29K2021/003B29K2027/06B29K2105/04B29K2105/20B29K2709/08B29L2031/778
Inventor 余志钊刘路周骏
Owner SAINT-GOBAIN GLASS FRANCE
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