MP20 Plate Butt Joining Machine for Plate Join

1. Usage of MP20 Plate Butt Joint Welding Machine:

1) The attached first photo was taken at a Russian customer workshop, on a set of Wuxi JACK MP20 model Plate Flat Butt Welding Machine. We can see on the output conveyor, there is a piece of finished joint steel plate, butt welding jointed from two pieces of raw material steel plates:

Finished joint plates fabricated from Wuxi JACK MP20 machine: (Fig.1) 

2) Function:  MP series Plate Butt Joining Machine is used for butt joint welding on 2 pieces of metal plates (Material: Carbon Steel, Stainless Steel, Al), with the welding mode of SAW welding (for 6 ~ 40mm thickness plate) and or CO₂ welding (for 5 ~ 6mm thickness thin plate);

3) Application Scenario of Plate Butt Joint Machine:

So, under what circumstances should metal plates to be joint with this machine?

a)  For example, when making production on large diameter pipe (Φ5,000mm diameter and above), length of single piece of steel plate is not long enough to be bent and rolled into a full circle of Φ5,000mm diameter and above;

b)  By this time, it is necessary to joint 2 pieces of steel plate with this MP series machine;

4)  MP20 refers to the max. valid butt welding width of 2000mm. Which means, the largest width to be joint in MP20 model machine is 2,000mm.

2. Working Steps in MP series Plate Flat Butt Welding Machine:

1)  General Layout in MP Model Plate Butt Joint Welding Machine:

a)  Checking on vertical view of the MP20 model Plate Flat Butt Welding Machine in the attached first photo, you can find in the sequence of raw material flow from input conveyor to output conveyor:

b)  At incoming side of the machine gantry, there is Oxygen fuel flame triple cutting torch, and at the outlet side of the gantry, there is welding torch system;

2)  Flame Cutting Torch in MP Model Plate Butt Joining Machine:

a)  Please check the attached 2^nd photo on triple cutting process in the machine;

b)  This unit has the same working principle as Plate Triple Flame Cutting Machine. It is for cutting out welding groove on the edges of metal plates, with thickness above 15mm, making preparation on the subsequent butt welding at the opposing side of the Plate Joint Welding Machine: For 15mm thicker plate, the straight edge butt welding can not acquire ideal fusion on welding seam:

Finished beveled carbon steel plate from triple flame cutting: (Fig.2)

c) This unit is optional configuration for the Flat Butt Welding Machine. Without it, customer may need to arrange on machine equipment, to cut out welding groove on edges of metal plates. The typical machine for getting this goal is with XBJ& SXBJ series Edge Milling Machine;

3) SAW Butt Welding in MP Model Flat Butt Welding Machine:

a) Welding Technology: The attached 3^rd~ 5^th photos record on working elements of SAW (Submerged arc welding) butt welding system in Wuxi JACK MP20 model machine;

b) Wuxi JACK Patent Technology: In butt welding system of the machine, Melt Through technique is utilized for high quality and high efficiency butt welding operation, which means “One surface welding and two surfaces seam forming”. This is patent technology Wuxi JACK applied in the year 2017. See below photo on effect of Melt Through technique in our machine: 

Finished joint steel plate with melt thru welding, in Wuxi JACK Plate Butt Joining Machine: (Fig.3)

4) Welding Torch Installation in MP Model Plate Butt Joint Machine:

The attached 3^rd photo was taken on installation status of welding torch system in the MP models machine, including:

- Its motor drive lifting mechanism;

- Welding wire feeding unit;

- Welding wire feeding tube;

- Welding flux recycling unit;

- Welding wire straightening mechanism;

5) Copper Pad and Welding Base in MP Model Flat Butt Welding Machine: (Fig.4)

a) The attached 4^th photo shows butt welding bed in the machine, which is formed with an array of copper pads. You can see there are 6 pairs of black color holding blocks just above the copper pads, which have interval space of 300~ 350mm. In the total welding seam width of 2000mm in the MP20 Plate Butt Joint Welding Machine, it needs 6 pairs of such holding blocks;

b) These holding blocks are for the purpose of pressing the two pieces of metal plates firmly during melt through butting welding operation. The swing of these black color blocks are driven with oil cylinders, which are installed inside the trapezoidal cover at both sides of the copper pads and welding base;

c) Grounding Cable: You can see from the attached 4^th photo that, there are black color earthing cables connected with each of the holding block, guaranteeing on safe welding operation in the machine: 

Cable grounding unit in Wuxi JACK Plate Butt Joint Welding Machine: (Fig.5)

6) Welding Torch Working in MP Model Plate Butt Joint Welding Machine:

a)  The attached 5^th photo was also taken on welding torch same as the 3^rd photo. The difference is it was taken during SAW melt through butt welding process;

b) And you can find welding flux was being deployed on the welding seam between the 2 pieces of steel plates. Please check attached video on melt through SAW butt welding in Wuxi JACK MP20 model machine;

c) Superior Quality: Finished butt joint steel plate from Wuxi JACK MP20 model machine: Please check the 6^th photo.

3. Technical Parameters of MP20 Plate Butt Joining Machine: