Plasma-Transferred-Arc-Powder-Welding Pta Machine

Product Description

PW4 PTA
(Plasma transferred arc engine valve)
      Technical note

1. Welding parameter
1. Arc strike current:30A(100%)
2. Transferred arc current:0-300A(100%)
3. Powder feeder:Quantity 6-45 gram/minute,loading volume 18kg
4. Welding gun:Welding current 5-250A
5. Center gas flow rate: 0.6-6 L/minute
  Powder feeder gas flow rate 0.6-6L/minute
  Protection gas flow rate: 1.6-16L/minute
6. Positioning turntable:CNC motor,rotating speed 0.1-10 RPM, inclining range 0⁰---+65⁰
7. Cooling water tank:Provide constant temperature and hydraulic pressure to welding gun and turntable. Cooling ability is 6000 kilocalorie/hour. Cooling water temperature control range is+5⁰C-+30⁰C. Control accuracy±1⁰C. Water tank volume is 45L(need deionized water)
8. Gas tube and water cooling cable components:1.5 meter length gas/water tube components used to connect welding gun and ignition box.
9. Operation system:text displayer,Chinese parameter show,91 set parameter reserve,Chinese breakdown reminder
 
2. Equipment working range
Workpiece diameter: 18-60mm
Groove shape:Should be accepted by both sides and suitable for plasma overlay welding
 
3. Install requirement
Below preparation should be ready before machine arriving:
1. Electric powder supply:380VAC±10%,one 65A air switch
            380VAC , one 15A air switch
2. Gas supply: Bottle industry pure argon purity is99.99%. Provide oxygen pressure reducing valve in the same time.(low tension range 0-4Kg/cm2)
3. Provide 45kg of deionized water
 
 
System configuration
Main part of machine

 

NO.	Item	Component and type	Piece
1	Control cabinet	Arc strike power(YC200 Panasonic) Transferred arc power(YC400 Panasonic) PLC programmable controller, Motor Driver, D/A transform, Isolation amplifier	1
2	Welding room		1
3	Powder feeder	KK1	1
4	Welding gun	600	1
5	Remote control operating floor	Text displayer	1
6	Welding gun adjust system	Straight bearing	1
7	Gas tube and water cooling cable	Pressure pipe	1
8	Positioning turntable	(CNC motor)	1
9	Water cooler	6000 kilocalorie Freon refrigeration	1
10	Ignition box	High frequency generator and water flow rate switch	1

Plasma-transferred-arc-powder-welding (PTA) has a very high energy density. This reduces the heat-input and gives the possibility of a variable, reproducible diffusion zone.
 
A non-transferred arc (pilot-arc) is ignited between the tungsten electrode and the water-cooled copper-anode using high frequency. This pilot arc usually burns permanently during operation.
 
For welding an additional arc between the tungsten electrode and the work-piece is used. As plasma-gas and pilot-gas a protective gas (mainly argon) is used.
 
The PTA powder (additionally a wire may be used) is fed into the transferred arc and is welded on the substrate.
 
INTERWELD use only inverter power supplies. They have a much higher efficiency and less power consumption than other types of powers supplies.

Our advantage

Application

Welding situation