Electrogalvanizing, also known as cold galvanizing in the industry, is the process of using electrolysis to form uniform, dense and well-combined metal or alloy deposition layer on the surface of the workpiece. Compared with other metals, zinc is relatively cheap and easy to coat a metal, a low val Read More

Stainless steel during hot working, machining or place after a certain period of time the surface will form a layer of black or gray scale, the main ingredients for Cr2O3, NiO and very refractory FeO, Cr2O3, affect the appearance quality, their presence on the one hand, on the other hand also influe Read More

Hot dip galvanizing is to make molten metal and iron matrix reaction and produce alloy layer, so as to combine the matrix and coating. Hot dip galvanizing is the first steel parts pickling, in order to remove iron oxide on the surface of steel parts, pickling, through ammonium chloride or zinc chlo Read More

Blackening is a common means of chemical surface treatment, the principle is to produce a layer of oxide film on the metal surface, in order to isolate air, to achieve the purpose of rust prevention. Appearance requirements are not high can be used black processing,. The coating film is generated Read More

Methods to remove burrs on fasteners:In order to improve the performance and service life of fasteners, it is necessary to remove fastener burrs before using fasteners. Fasteners are commonly used parts in machinery and equipment, and are also important parts. Therefore, the surface, acute angles an Read More

The market at present there are a few quick inspection method of stainless steel fasteners, true and false, if stainless steel liquid and the magnet, but after many years, the two methods are not scientific, the reason is that drug testing potion is numerous, stainless steel composition is complic Read More