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Talking About The Protection Of Glass Surface

tempered_glass

In order to reduce the scratches and mildew of the finished glass, surface protection measures are generally taken when the glass flows to the cold end: applying anti-mildew agent, laying paper, spraying powder, blowing broken glass shavings, and using fast and slow rollers before and after horizontal breaking. Road and air cushion conveying, etc.

  1. Anti-mildew treatment of glass Mildew will affect many performances; reduce the transparency of the glass, affect the optical properties, and deteriorate the appearance, and can no longer be used in deep processing processes such as coating and mirror making; reduce the mechanical strength of the glass; , The whole box of glass is scrapped. At present, the main methods for preventing glass mold at the cold end include the paper clip method, the anti-mold powder method, and the anti-mold liquid method.

The sandwich paper can absorb water and prevent the formation of a large-area water film on the glass surface, thereby effectively preventing the glass surface from getting moldy. The protective effect of the paper increases with the increase in the mass per unit area of ​​the paper. The paper-clip method has a certain anti-mildew effect, but the effective anti-mildew period is short, and the acid anti-mildew paper will produce “paper grain” on the glass, which is not easy to clean. The paper can be manually clamped in the box, or the paper can be laid by the paper laying machine after cutting and breaking.

Anti-mildew powder method spraying anti-mildew isolation powder on the glass surface is a cost-effective and simple surface protection measure, which is widely used. Static electricity is applied to the powder before spraying, so that the powder is evenly distributed and firmly adsorbed on the surface of the glass plate.

Anti-mold liquid method This method utilizes the suppressing effect of divalent ions, and at the same time, not only does water vapor not easily condense on the glass surface, but also forms a firm waterproof layer on the glass surface and does not exist “paper grain”. There are two application methods: one is to spray the anti-mildew liquid on the upper surface of the glass in the form of a mist; the other is to apply the anti-mildew liquid to the glass surface with a coating roller covered with soft rubber. The applied anti-mold liquid can be dried naturally.

  1. The main reason for preventing glass surface abrasion is the relative displacement between glass plates and between glass and other equipment during production and transportation of glass.

The blowing cleaning device is generally equipped with a blowing cleaning device to blow the glass surface after the post-breaking process. The hardness of the sandwich paper is much smaller than that of the glass surface, and it exists between the glass plates, which can avoid the mechanical abrasion of the glass plates due to sliding against each other.

Air-cushion conveying is in a state of air floating during glass conveying, and there is no relative mechanical movement with conveying equipment, thus avoiding mechanical abrasion of glass surface.

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