Glass polishing is through what principle mobile phone glass screen printing machine working principle

With the development of economy and the progress of science, the glass industry has also made continuous progress, and the original glass types have been strengthened while developing new varieties. Various types of deep-processed glass gradually replace ordinary flat glass and shine in their respective application fields. In order to be able to buy better quality, reasonable price of glass products, we need to have a certain understanding of it, quickly with me to see what is the principle of glass polishing, as well as the working principle of mobile phone glass screen printing machine.

1. glass polishing is through what principle

Glass polishing refers to the use of chemical or physical methods to remove the surface of the glass lines, scratches and some other flaws, improve the transparency and refractive index of glass, so that the glass is more vitrified.

Method 1: Fire Polishing

The use of flame to soften the glass surface and the impact of fire on the glass can solve some grain on the surface of the glass products, but the flatness of the treated glass surface will be reduced. General hollow glass after cutting the mouth is rough can be polished by this method.

Applicable material glass: soda lime glass, high jump silicon glass

Negative effects: easy to fry

Method 2: Polishing powder polishing

The use of polishing powder on the glass surface of the high-speed friction to remove scratches, sassafras, etc., can greatly improve the light transmission and refraction effect of the glass!!! Before polishing, the polished part should be polished with abrasive belt, and the pure plane should be polished with an emery disc of more than 400 mesh. There are many tools and materials used in this polishing method, but the better effect is the wool wheel cerium oxide (common name: rare earth polishing powder). The production and use of machinery will not be described in detail here,

Applicable material glass: the vast majority of glass products

Negative effects: slower

Method 3: Acid polishing

The use of acid on the glass corrosion of the glass surface treatment, the same need to polish the surface of the glass before the use of sand belt, because acid polishing can reduce the thickness of the glass a lot, but not necessarily to remove all the glass lines. Its formula changes depending on the glass material. This method is extremely dangerous! Non-professionals and companies with complete equipment do not recommend individual testing.

Applicable material glass: any glass (but the effect after polishing is determined by the glass material itself)

Negative effects: the smoothness is not well controlled, and the water chestnut of glass products is damaged to a certain extent.

2. mobile phone glass screen printing machine working principle

The glass screen printing machine sold on the market is actually the use of screen printing plate, is a glass glaze, decorative printing on the glass products of a printing process.

Fully automatic CCD image alignment left and right running screen printing machine, semi-automatic CCD video alignment screen printing, precision servo electric screen printing machine, precision servo electric screen printing machine, etc. can be used for screen printing on glass products.

For a long time, the etching decoration of glass products is to thermally coat wax layer and other reinforcement materials on the surface of the glass as an anti-corrosion layer, and then carve out patterns on the coating with needles, knives, etc. to expose the glass surface, and then corrode hydrofluoric acid on this part. This process continues to be used by manufacturers, but its processing method is time-consuming, laborious and inefficient. The silk screen etching process makes the etching decoration of glass products simple, time-saving and labor-saving. Glass etching screen printing, there are two methods of hot printing and cold printing. Thermoplastic etching screen printing is to add a small amount of resist powder to the adhesive prepared by paraffin wax, asphalt, stearic acid, etc. to prepare a resist printing material. Through hot printing screen plate, according to the design pattern, the printing material is scraped to the glass surface to form a resist film. The part of the resist where the glass is exposed is the pattern to be etched. The etching is carried out with chlorofluoric acid, and the resist printed on the glass is rinsed off with boiling water after etching. Glass screen printing etching, can also be carried out by cold printing method. Anti-corrosion printing material can use special asphalt paint plus anti-corrosion powder, or buy commercially available anti-corrosion ink. After completion, the resist is completely dried and can be etched by hydrofluoric acid. Hot printing is suitable for the etching of two-way and four-way continuous patterns, while cold printing is suitable for the etching of individual patterns.