The function of sandblasting

There are many manufacturing processes of producing pipe fittings, like cutting end bevels, heat treatment and sandblasting etc. Every process plays a very important role.The following is a brief production about the function of sandblasting:

1.The cleaning of pipe fittings’ surface

It can be used for metal corrosion layer, residual salt and oxide layer on the surface of heat treatment parts, oxide layer on the surface of rolling parts, oxide layer on the surface of forging parts, oxide layer on the surface of welding parts, molding sand and oxide layer on the surface of casting parts, residual dirt and micro burr on the surface of machining parts The surface of old parts is treated to remove the surface adhesion layer and reveal the original color of the substrate. The surface cleaning quality can reach SA3 level.

EN10253-2 P265GH sand blasting equal tees

2.The pretreatment of pipe fittings’ surface before coating

It can be used as the pretreatment process of various electroplating processes, brush plating processes, spraying processes and bonding processes, so as to obtain active surface and improve the adhesion between coating, coating and bonding parts.

EN10253-2 P265GH concentric reducer after sand blasting

3.Changing the physical and mechanical properties of the pipe fittings

It can change the surface stress state of the pipe fittings, improve the lubrication conditions of the mating parts, and reduce the noise during the motion of the mating parts. It can harden the surface of the pipe fittings and improve the wear resistance and fatigue strength of the parts

4.The surface roughness Ra value can be changed by surface finishing.

The surface of pipe fittings can produce sub light or diffuse reflection to achieve the purpose of finishing

Hebei Haihao has focused on producing the pipe fittings and flanges for almost 40 years. We will control every process strictly and provide our customers products with high quality.Email:sales@haihaogroup.com