Longitudinal Seam Welding Machine LNG Gas Cylinder Machinery Production Line
1,Basic Info:
| Model NO. |
EN source |
Workpiece material
|
Austenitic stainless steel |
Workpiece thickness
|
I-type butt joint |
Diameter range (customer's requirement)
|
φ508mm~φ758mm |
The length of the barrel
|
500mm~1800mm |
Welding effective range
|
≤2200mm |
Pre-weld state
|
Fixed |
Workpiece weight
|
50-200kg |
2,Sub-item description of main equipment configuration:
(1) Welding host system (2) Plasma welding system
(3) Plasma generator WC-100 (4) Plasma welding gun PWM-300
(5) WF-1A automatic plasma welding wire feeder (6) Tungsten electrode grinding machine
(7) Loading and unloading bracket (8) Electrical control system
3,product description:
1)Straight seam welding (TIG Welding)
Straight seam welding (TIG Welding) is a very important part of the LNG cylinder production line.
The welding process introduced by the company can weld stainless steel, carbon steel and other materials,This machine is not only good in processing quality, but also more labor-saving for welders.
2)Straight seam welding (TIG Welding) requirements
2.1.Straight seam welding (TIG Welding) form: butt weld.
2.2.Straight seam welding (TIG Welding) process: PAW plasma (or PAW plasma + wire filler) welding process is used, and "99.999% argon" is selected as the plasma gas. Select "99.99% argon" as the shielding gas. For the cylinder plate thickness δ2.5~5.0mm, plasma single-sided welding and double-sided forming at one time. The movement of the welding gun is coordinated by a stable DC motor, linear guide rail, and mechanical transposition, and the welding process is automatically completed through electrical control.
3)Straight seam welding (TIG Welding) results
3.1 When the assembly and surface condition of the workpiece are good, the welding material and the shielding gas are in good condition, the workpiece after welding is subjected to 100% RT inspection, and the weld is qualified by RT inspection level II. Make the first pass rate of welding greater than or equal to 99%.
3.2 When the assembly and surface condition of the workpiece are good, the TIG welding material and the shielding gas are in good condition, the workpiece after welding is subjected to 100% RT inspection, and the weld is qualified by RT inspection level II. Make the first pass rate of TIG welding greater than or equal to 99%.
3.3 The weld reinforcement is within the range of 0-1.0mm.
3.4 The appearance of the weld is golden yellow or silver white.
4)Straight seam welding (TIG Welding) Equipment structure
The general drawing of the equipment is as follows:
LNG insulated gas cylinder double ring seam equipment is suitable for double ring seam welding of cylinder body and head, and adopts a horizontal machine tool structure as a whole. Mainly composed of bed guide rail, head and tailstock hydraulic tightening, high-precision hydraulic bracket, head and tailstock fixture, column and beam (2 sets), welding head (2 sets), hydraulic system, welding power supply system (2 sets) and electrical control system.
Main equipment configuration list:
| NO |
Project name and composition of subprojects
|
Remarks |
| 1 |
TIG Welding machine system |
Longitudinal seam welding host |
Including laser indicating centering device, key pressing mechanism, water-cooled mandrel, pneumatic mandrel hook, etc. |
|
Cross beam and welding gun lateral walking mechanism |
Column beam mechanism to realize the longitudinal seam welding walking of the welding torch |
| Welding head |
|
| Cooling circulating water tank (with refrigeration) |
Domestic brand (ordinary water tank, used for longitudinal seam mandrel water cooling) |
| 2 |
Plasma welding system |
Plasma welding power supply |
American Fermat Company (Model: Transmig 550i) |
| Plasma generator |
American Fermat Company (Model: WC-100B) |
| Plasma welding gun PWM-300 |
Fermat Corporation |
| WF-1A automatic TIG welding wire feeder (stainless steel welding wire) Cooling circulating water tank (with refrigeration) |
|
| Cooling circulating water tank (with refrigeration) |
Domestic brand (used for welding torch water cooling) |
| 3 |
Loading and unloading bracket |
|
| 4 |
Welding gun exhaust trailing cover |
|
| 5 |
Pneumatic control system |
Taiwan AIRTAC; triple parts, pressure regulating valve, solenoid valve and pipeline, etc. |
| 6 |
Electrical control system |
(Mitsubishi PLC + touch screen) |
| 7 |
Cables, drag chains and other accessories |
|
| 8 |
random document |
(Including instructions, certificates, etc.) |
Audited Supplier 
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