Three coating methods for drywall screw

<p>Drywall screw is usually coated by electroplating, hot-dip galvanizing, and more common three mechanical platings. Let it form a uniform protective layer on the surface of the combined screw for protection. Post-processing, we can see that it is aesthetically elevated. It has been greatly improved, not only in high-temperature resistance but also in the above-mentioned corrosion performance. Therefore, the working range of the combined screw has been expanded a lot, and it has strong adaptability. Many companies have applied some fastener coatings to <a href="https://www.gdfshuajian.com/drywall-screw" rel="noopener noreferrer" target="_blank">drywall screw</a>.</p><p><br></p><p>First of all, electroplating screws, this process is to make the combined screw aqueous solution electroplating the metal-containing place, and then through the electroplating metal electroplating through the current, which can be selected according to needs, and the demand analysis in the selection process can be closely connected with the wires.</p><p><br></p><p>Second, mechanical galvanizing, the use of the main metal powder, through a combination of physical and chemical methods to produce coatings.</p><p><br></p><p>Third, hot-dip galvanizing, the passivation caused by the partial melting of the zinc bath temperature of the combined screw coating is about 510°C. This coating can improve the performance of high-strength bolts and is favored by many fastener companies.</p>