Jin Huajin artisan coating co., LTD., is still in the continually updated development, higher efficiency of automation products, to provide customers more choice is our goal. We are satisfied

Work with enthusiasm to strive to provide customers with first-class products and perfect after-sales service, with customers common development and progress.

The surface roughness before painting mainly by adjusting the control of abrasive particle size, shape, material and jet velocity, effect of process parameters such as time, among them with abrasive granularity

Size bigger influence on the roughness. The following table lists the steel structure painting association (SSPC) by various abrasive jet measured roughness. The international organization for standardization under the state council

Steel surface after the evaluation of the injection processing features of ISO8503 standard stipulated in the microscopic measurement method, stylus measuring method and the surface roughness of ISO benchmark sample piece of three

Kind of evaluation method. In fact, still use the traditional Elcometer123 roughness measuring instrument with a probe and calibration table, or in RUGOTEST NO. 3 or

COATTEST standard methods such as comparison sample piece measuring or evaluation of surface roughness. In before a shop primer for steel surface further, must be removed all the dirt

And put on hold during the corrosion and aging, the welding position during the process of transportation, assembly and heat treatment shop primer are produced when the injury and defect,

Must be made to derusting, namely secondary descaling.