Lanxing Technology Co.,Ltd

Lanxing Technology Co.,Ltd

China professional CNC welding and cutting machines manufacturer
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Plasma transferred arc welding for High pressure flat valve
Plasma transferred arc welding for High pressure flat valve
Product Name:
Plasma transferred arc welding for High pressure flat valve
Size :
:
:

Product Description:

1. The spray welding machine is especially for sealing surface of high pressure flat valve plate in oil (gas) wellhead device. It can fully complete the spray welding process of high hardness nickel base alloy powder on sealing surface of valve plate of diameter of less than 103 mm, with pressure grade of 35-140 MPa.

2. It adopts PTA-400A3 touch screen control cabinet, which can store spray welding menu of 100 different types of work pieces. In the menu, all spray welding process parameters can be set and stored.

3. Spray welding machine is equipped with CNC working platform. The spray welding process of one-sided sealing surface can be completed only by pressing a button once in automatic operation.

4. This machine can spray 42CrMo, 1Cr13, Inconel 625 and other valve plates of different materials. The hardness of the welding layer can reach HRC55-58. The welding layer and base metal are metallurgically combined, without pore and block. The production efficiency is more than five times higher than that of manual oxygen-acetylene spray welding. The yield of one-time spray welding is not less than 90%. (The yield of one-time manual spray welding is generally only 20-30%. )The manufacturing cost is lower than flame spray welding and supersonic flame spraying (HVOF).

5. It can greatly improve the production efficiency, product quality and manufacturing technology level. Compared with HVOF process, plasma transferred arc welding (PTA) valve plate has thicker surface hardening layer, higher bonding force and better compactness. It will not cause cracking and large area falling off of sealing surface due to deformation or corrosion of valve plate in long-term use. Its reliability in high pressure and high corrosion concentration environment is obviously better than HVOF process, and it is especially suitable for gas wells and underwater wellhead equipment.

Technical parameters:

1.Basic parameters 

Control mode

Programmable controllerTouch screen

Non transfer arc power type

Special inverter type DC spray welding power source

Non transfer arc current regulation range

10100A

Transfer arc power type

Special inverter type DC spray welding power source

Transfer arc current regulation range

10300A

Wiggler type

Numerical control wiggler

Swing width adjust range of wiggler

040mm

Powder feeder type

High precision roller powder feeder

Adjusting range of powder feeding quantity

060g/min

Rated load of worktable

30kg

Size of spray welding valve plate

300X300mm

2. PWT-300W  High power powder plasma welding torch parameter

Rated transfer arc current300A

Rated non transfer arc current80A

Application: mainly used for spray welding of preheated work piece, large current carrying capacity, stable operation and long service life.

 

Configuration: 

Name

Model

Unit

Qty

Spray welding control cabinet

PTA-400A-HPFV

set

1

Non transfer arc power

POWERPTA-200

set

1

Transfer arc power supply

POWERPTA-400

set

1

Spray welding manipulator

CZ-1010PB

set

1

Numerical control wiggler

BD-5

set

1

High precision roller powder feeder

SF-3

set

1

High power welding torch

PWT-300W

set

1

Cable

300A

set

2

Hand-held Wired controller

JK-2

set

1

Welding torch Water cooler

HT50

set

1

Samples:

Valve PTA samples.jpg

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