In the production process of the home appliance, the spraying process of the outer panel is arranged before the molding after punching. In the flat spray process, the workpiece is transported in a horizontal double row feed. The production line speed can reach 8-18m/min. In order to reduce the equipment footprint and reduce the equipment investment, the processing of each pre-process of the board must be completed within a few seconds to ten seconds, so that the equipment used for the pre-treatment And the pre-treatment process puts forward high technical requirements. At present, only a few chemical liquid manufacturers in foreign countries have developed such liquids, such as: HENKEL, CORAL, CHEme taLL, etc., and have already put into mass production.
Since the flat spray coating is thin and uniform, and it is formed after spraying, it has high requirements on the performance of the powder coating. For example, the adhesion of the flat spray coating must reach 5B (ASTMD3359), anti- The impact performance should reach 160in·lbs (1.845kg·m) (ASTM2974), the bending requirement should reach OT (ASTMD522), and the salt spray resistance test should reach 1000h. In addition, since the flat spray coating uses electrostatic rubbing spray gun, it is used for film formation before powder. There are also special requirements for various performance indicators such as charge quantity and particle size distribution. At present, only a few foreign companies specializing in the production of powder coatings have the ability to develop and produce, such as: FERRO, DUPONT, AKZO-NOBEL and so on. There are only a few first-class companies capable of producing flat-panel spraying equipment, such as ELSENMANN in Germany, KOCH in the United States, NORDSON in the United States, and WAGN-ER in Germany.
Fused Silica Windows and Wafers
Fused Silica Windows is based on UV-grade synthetic fused silica. UV Fused Silica window provides better performance from UV to IR spectrum than BK7 windows. Also, it is the best choice in terms of thermal stability.
In addition to superior transmission characteristics, synthetic fused silica exhibits higher thermal properties, exceptional purity, and excellent environmental durability for demanding applications.Compared with other optical glasses like N-BK7, UV Fused Silica has very low autofluoresence and scattering.Fused Silica Window Substrates can be used for multipurpose applications. Purchase optically finished substrates to be coated with an AR coating, highly reflective dielectric or metallic coating.
Fused Silica Wafers,Jgs1 Wafers,Uv Glass Wafers,190Nm Wafers
Zoolied Inc. , https://www.zoolied.com