Three sets of Plate Butt Joint Welding Machine delivered to European Customer by Wuxi JACK

Background of This Blog on Plate Butt Joint Welding Machine:

1) In Nov.2021, three sets of MP-series Plate Butt Joint Welding Machine were delivered to a middle European customer by Wuxi JACK;

2) This is the 9^th set of exported Flat Butt Welding Machine from Wuxi JACK in the year of 2021, and the 20^th Plate Butt Joining Welding Machine delivered for customers both inland and overseas from Wuxi JACK in 2021;

3) In this short article, we will have a brief introduction on Application/ Advantage/ Core Technology of this melt through welding technology of Plate Joint Welding Machine:

• Application of Plate Butt Joint Welding Machine:

• Advantage of Plate Butt Joint Machine:

• Core Technology in Flat Butt Welding Machine:

A. Application of Plate Butt Joint Welding Machine:

1. Task of the Plate Butt Joining Welding Machine:

1) The primary task of this Plate Butt Joint Machine is to joint weld two pieces of metal plates along its width direction, so you can get a piece of joint plate with its length sum of the original two pieces. For example, in industry of Large Pipeline Production, the diameter of 5m and above (6m/ 7m/ 8m) pipes are often produced. The longest length for single piece of 15m is not sufficient to be used for bending and welding pipe of such large diameter. So, two or more pieces of metal plates need to be joint together;

2) The MP series Plate Butt Joint Welding Machine is developed for this purpose. It has core step of melt through welding (Fully Penetration Welding, or one surface welding two surfaces forming). In the exemplification listed above, you can joint two pieces of 2m wide and 15m length steel plates with this Flat Butt Welding Machine, to get a final joint plate of 2m wide and 30m length. The strength of joint seam from MP-series Plate Butt Joining Welding Machine is higher than the pre-joint base metal. So, it has outstanding performance for application;

3) The second application of this Plate Butt Joint Welding Machine is, you can turn the original “useless” cut off small plates into useful again, by joint two or several pieces of small and or shorter plates into an integral larger one.

2. Standard Models and Specifications of the Plate Joint Welding Machine:

1) Based on the largest width of plates for joint, the MP-series Flat Butt Welding Machine has series of standard models from MP20 (For butt joint metal plates with the largest width 2m) to MP50 (5m the widest); Besides, any special model of the Plate Butt Joint Welding Machine for special size is available for developing and manufacture;

2) The welding mode is this Plate Butt Joint Machine is SAW (Submerged arc welding) under majority conditions. In the case of thin material, thickness ranging in 2mm ~ 6mm, CO₂ gas shielded welding is applied in the MP-models Flat Butt Welding Machine;

3) The Plate Butt Joint Welding Machine can be applied for metal materials of low carbon steel, Al alloy, and stainless steel. Of which the low carbon steel plates take the largest share in use.

B. Advantage of Plate Butt Joint Welding Machine:

1. Benefiting from the melt through welding, the MP models Flat Butt Welding Machine simplifies the plate butt joint process, removing the former necessary steps of plate overturning/ carbon gouging/ The second face butt welding. For more detail, please check the article of “The Benefit of Plate Butt Joint Welding Machine Compared with Conventional Plate Butt Joint Way”.

C. Core Technology in Plate Butt Joint Welding Machine:

1. The core technology in the Flat Butt Welding Machine is melt through welding, which is a kind of fully penetration welding, so that welding seam formed at both sides of the steel plates. The implementation of the melt through welding is by means of special made copper pads, as you can check from the above photo;

2. In the operation of the Plate Butt Joint Welding Machine, copper pads mechanism is lifting type: When not in working, it is at its bottom place located on pedestal of the Flat Butt Welding Machine. After sending in the metal plates for joints, the copper pads mechanism is lifted upward under the drive of worm gear motor reducer, until it leans against bottom surface of workpiece tightly;

3. In the butt welding period of the Plate Butt Joint Welding Machine, there is large welding current going through the welding circuit formed from metal plates/ Copper pads/ Earthing cables. Before melt through welding in the Flat Butt Welding Machine, there are welding fluxes deposited at both top and bottom sides of the metal plates, so that welding seam can be formed from this melt through welding of fully penetration welding;

4. During the butt welding process happened in the Plate Butt Joining Welding Machine, the copper pads beneath the metal plates prevent the welding flux from leaking off, and the heavy clamping force applied on the workpiece generated from the copper pads and hydraulic pressing blocks helps forceful formation of good quality flat welding seam with fully penetration welding, even on the thick plates of thickness 30mm and above. So, you can see that copper pads plays the key role in the melt through welding of the Plate Butt Joint Welding Machine;

5. During work of the Flat Butt Welding Machine, the copper pads mechanism is continuously cooled down and have welding heat dissipated by means of the circulating water running through its central hole. This helps make the longest using life of copper pads, and great butt welding quality in this Plate Butt Joint Welding Machine.

Postscript on the Flat Butt Welding Machine:

1. In 2017, Wuxi JACK got the patent on the above mentioned copper pads melt through welding technology applied in the Plate Butt Joint Welding Machine. Currently, we are leading producer of such Flat Butt Welding Machine in the industry;

2. Besides the MP series Plate Butt Joint Welding Machine, we also provide the welding equipment for the exemplification of large pipe welding as above: The Welding Manipulator. If you have interest, please pay a visit to it.