Shanghai Zhongzhou Special Alloy Materials Co,.Ltd.

—. P.T.A. Hardfacing Welding System
PTA welding is a kind of efficient welding method which use plasma as the source of heat and use powder as the surfacing alloy consumables. Compared with other welding method, it has many good features, such as high temperature plasma Arc, concentrating source, stable burn, little effect of welding heat, high welding speed and so on. Due to its high efficiency, beautiful forming, easily reach mechanization and automatility, this PTA welding system gets widely used in the welding area.
二. Welding Production
Welding Current：150～300A
Shapes：Circumference-, plate-, axis-
Specification：Φ 20～1000㎜ L 20～1000㎜
SHIELD WELDⅠ
PTA Engine Valve Powder Welding Machine

（MODEL）			SHIELD WELD 1-1	SHIELD WELD 1-2	SHIELD WELD 1-3
Input power			3Φ380V 15KVA	3Φ380V 20KVA	3Φ380V 30KVA
L×H×W(mm)Size			1900×1900×1700	1900×1900×1700	1900×1900×1700
（A）Welding Current			200A 100%	200A 100%	200A 100%
Torch Current（A）			150 A 100%	200A 100%	250A 100%
(rpm)Table Speed			0.1～10	0.1～10	0.1～3
(g/min)Powder Feeding			3～30	3～30	6～60
Water Chiller	(CA/H) Cooling Capacity		4000	4000	6000
Water Chiller	(kg/cm²) Water Pressure		4	4	4
Oscillator			/	Select parts	（Swing Range）:0～38mm （Center Width）:38mm （Speed）:16～1301pm
Adjust System(mm)			150×150×150	150×150×150	150×150×150
Gas Pressure			4	4	4
Argon		(L/min)	0.5～1.5	1～2	1.5～2.5
		(L/min)	0.5～1.5	1～2	1.5～2.5
		(L/min)	5～10	10～15	5～20
Engine Valve Diameter(mm)			Φ19～35	Φ25～50	Φ50～100
Engine Valve Length(mm)			L60～300	L60～300	L≤500

SHIELD WELDⅡ

MODEL	SHIELD WELDⅡ
Input power	3Φ380V 40KVA
Size:L×H×W(mm)	2000×1600×800（mm）
Welding Current	400A 100%
Torch Current（A）	300A 100%
Table Speed(rpm)	0.03～3rpm
Powder Feeding(g/min)	6～60（g/min）
Cooling Capacity	6000CA/H 4kg/C㎡
Oscillator（Miller）	swing range:0～38㎜ center width:38㎜ speed:16～130IPM
Carriage Speed	6～600（㎜/min）
Parts Diameter	≤Φ1000㎜
Parts Length	≤900㎜
Argon（30psi）	center gas(L/min):1～3 powder gas(L/min): 0.5～2 shield gas(L/min): 15～20