PTA Welding

Plasma is a kind of gas; it becomes ionized when heated to extremely high temperature, thus producing electrical conductivity. The plasma transfer arc technology is able to transfer the electric arc to the screw flight. The metal or powder to be welded will be melted and combined by the strong heat from the electric arc, and form the alloy layer on the screw flight top.

Alloy Type	Main Base	Other Component	Inlay Hardness	Wear Resistance	Corrosion Resistance	Application
S-59 #56	Ni	Cr	HRC 52-55	★★★	★★★★	Glass Fiber≦10%
S-59 #88	Ni	Cr/W	HRC 58-60	★★★★	★★★★	Glass Fiber≦25%
S-59 #12	Co	Cr/W	HRC 44-48	★★★☆	★★★★	Glass Fiber≦10%

TAN STAR INDUSTRIES INC.