Sheet Metal · 2021年11月1日

Several Common Surface Treatments for Steel Structure Bolts

Several common surface treatments for steel structure bolts

Electroplating, hot dip galvanizing and mechanical equipment plating on the surface of fasteners are widely used. The whole process of creating a soil layer on the surface of fasteners can show a more beautiful and elegant surface after surface treatment, and the corrosion resistance of fasteners themselves will gradually improve.The key goal is to make the fasteners themselves get corrosion resistance, in order to improve the credibility and adaptability of fasteners application, so the quality of the surface treatment of fasteners to distinguish, the key is to check whether the corrosion resistance of fasteners is reasonable, and the intensity of the improvement is not in line with the estimated provisions.

 

1, fasteners, fastener of electroplating electroplating is refers to the fasteners must be part of the electroplating entering into a special solution, the solution will have some accumulation of metal materials, chemical substances, as in electricity flow according to the solution, the aqueous solution of metal materials chemical dissolving and adhesion on into part of the fasteners.The electroplating of fasteners generally includes hot dip galvanizing, copper, nickel, chromium, copper nickel alloy, etc.

2, fastener hot dip galvanized fasteners is the fastener of carbon steel components into the attention of about 510 degrees of molten zinc plating tank, so that the surface of the fastener iron zinc alloy material will change to passivation zinc treatment, and then get the actual effect of surface treatment.The price of hot-dip galvanized fasteners is higher than that of electroplating, about 1.5¥ ~2 ¥ for 1 kg.

 

3, mechanical equipment of fasteners plating mechanical equipment plating fasteners refers to according to the special physical and organic chemistry way, with coating metal material powder, impact the surface of the fastener, so that the coating metal material according to the way of cold welding, produce coating on the surface of the fastener, to achieve the actual effect of surface treatment.Mechanical equipment of fasteners plating key applicable screws, nuts, gaskets and other accessories.

Main products: steel structure bolts and nuts, high strength bolts and nuts, hex bolts, hex nuts, chemical bolts and nuts, and more types of customized screws, nuts and bolts.

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