The gas-electric vertical welding used by tank welding machine is a fully automatic control ascending system with a special flux-cored wire, and CO2 gas shielding for vertical butt welding to weld vertical or near-vertical welded joints.
What is tank welding machine?
How many kinds of tank welding machine?
What is the preheating method of tank welding machine?
Large storage tank automatic welding machine, large storage tank is used to store oil, natural gas, and other energy. This kind of tank because the body is too big, cannot be formed at a time, are made of steel plate, splicing. So the welding machine is needed in the splicing process. Manual welding is the simplest and most direct method, but because of its high cost and low welding speed. So automation equipment has been widely used. Large tank automatic welding equipment, we are also known as tank automatic welding machine, the following for you to introduce several commonly used automatic welding machine: horizontal welding machine, vertical welding machine and Angle flat welding machine.
The so-called horizontal welding machine is a kind of welding machine that welds steel plates horizontally in the storage tank prefabrication.
The so-called vertical welding machine is a kind of welding machine that welds steel plates vertically in the storage tank prefabrication.
The so-called Angle flat welder is a welder that welds the bottom plate and the corners in the storage tank prefabrication.
After the arc of the welding rod of the tank welding machine is started, the arc is slightly elongated. In the state that the arc is not extinguished, the end of the welding rod is melted and a few droplets fall down. At this time, the welding rod has reached the normal burning state. At the same time, the use of the tank welding machine The heat generated by the arc heats the weld start. If it is found that the surface of the spot-fixed weld at the start of the weld begins to show signs of melting, the electrode will press the arc towards the lower edge of the spot-fixed weld, and then weld upward; The electrode reduces the welding speed slightly and turns the arc upwards. At this time, the electrode pauses for a while, and the rear edge of the weld joint is broken down in advance, and a molten pool and a molten hole are formed, and the formed molten hole must ensure that the blunt edge of both sides is 1.0~1.5 mm. At this time, the seam has been connected, and the electrode can be welded normally.
With a large number of suppliers, we can choose the right suppliers according to customers' requirements and provide the most cost-effective products. WINCOO ENGINEERING CO., LTD provides big pressure vessel, heavy duty pressure vessel, industrial pressure vessel, automatic pipeline construction equipment, electric vertical tank construction solution, etc. Complete after-sales service, we can provide online and offline technical support, not only video guidance, but also on-site guidance, want to know more about high efficiency pipeline construction equipment, horizontal pipeline construction equipment, stainless steel pressure vessel, etc.
In today's international environment, oil is used more and more frequently, and its price is also rising. More and more producers, middlemen or users are building tanks to store oil. In order to build the tanks more quickly, we inevitably need to replace labor with machinery, thus saving time and labor costs. Today we will introduce to you a few of our company specialized in building storage tank machinery.
●Automatic tank horizontal welding machine
●Tank vertical welding machine
●Automatic Submerged Arc Welding Tractor
●Hydraulic jacking system
WINCOO offers the Automatic Girth Welder for tank fabrication applications. Unlike other girth welders on the market, WINCOO AGW comes standard with a Dual Drive System and other features unique to our machines. This self-propelled submerged arc welding system can reduce field storage tank welding time by 40% by increasing arc on time and reduce weld defects. The models run directly on the tank and carry the operator, eliminating the need for Scaffolding while ensuring operator comfort and safety. The girth welder, due to their modular design, are applicable for top down or bottom up constructed single or double wall storage tanks. our design allows us to offer custom-built units for special applications.
Min Tank Diameter
Top to Bottom& Bottom to Top
Electro-gas welder(EGW) is designed to weld the vertical joints of atmospheric flat bottom storage tanks, it features high heat input to achieve maximum productivity while maintaining acceptable quality.EGW can be used to weld joints up to 1in.(25mm) thick in a single pass, and takes about 1.2hours to weld an 8ft(2438mm) vertical seam. Compared with the 5.3hours it takes to weld the same seam using conventional flux cored arc welding(FCAW) process, this represents a 400% improvement in productivity.
Min Tank Diameter
The tractor are mobile units can be easily transported to any workstation and adapted to fillet seam and flat seam. The modular design of the tractor make it easier to extend the units with additional devices, i.e. flux supply unit and flux recovery unit. Suitable components can be combined in an optimum way for every welding process.
6mm and above
Carbon steel, Stainless Steel
Square groove, Single V groove, Double V groove, Lap joint
Dimension(L x W x H)
800mm x 500mm x 700mm
T Series Hydraulic Tank lifting device is a large-scale equipment specially designed for the national oil reserve project developed suitable steel giant silo tank inversion welding process engineering.
Uses: steel giant silo tank inversion process of welding engineering. It applies to steel tanks height ≤2.5 meters (special plates are negotiable).
1. vertical lift displacement of the overall structure, the overall building.
2. large span roof truss and flip construction of multi-storey buildings.
3. large objects vertical lifting, lifting.
Features: 1, This type of device is a two-stage single-acting hydraulic cylinder (hydraulic jacks) for VTOL work force or return required from back position, it can not use for horizontal work.
2, Structured compact device, Safe and stable, easy to operate, load adjustable, quick installation, high synchronization accuracy.
3, YT Series Hydraulic Tank lifting device is "dragged five" Oil supply: Each pump station connected to the hydraulic cylinder 5; thus avoiding excessive tubing traditional centralized oil brings,
4, Leakage points more than the disadvantages, to ensure that environmental pollution to a minimum.
The above is the welding machine and hydraulic jack for tank construction, of course, this is only a brief introduction, they also have more specific classification, you are welcome to visit our website to browse more product information.
Here is the content list:
l Product performance characteristics of tank welding machines.
l Specific structural characteristics of tank welding machines.
l Welding technical characteristics of tank welding machines.
Product performance characteristics of tank welding machines.
EGW vertical gas-electric tank welding machines are highly efficient automatic welding equipment, which can control the improvement of the welding frame according to the current feedback closed loop. In a water-cooled forced welding seam, the main feature of a forming is the thickness from 10mm to 50mm.
Automatic control of the molten pool level of tank welding machines and automatic adjustment of wire drawing length. Small size, light weight welding frame and easy to update flexible modularization, easy to use. Widely used in petroleum, chemical, blast furnace thick plate welding and shipbuilding industries.
Tractor tank welding machines are mobile units that can be easily transported to any workstation and are suitable for fillet and flat seams. The modular design makes it easier to expand the units with additional equipment, namely the flux supply unit and the flux recovery unit. For each tank welding machines welding process, suitable components can be combined in the best way.
Specific structural characteristics of tank welding machines.
The basic structure of the exhaust pipe ring welding machine.The assembly of the automatic welding machine is mainly composed of a pulley guard, a transmission mechanism, an observation window, a platform, a guard, and a rotating clamping mechanism.
ACL-200's small automatic welding machine specifications.Aiming at the diameter of the duct in the aero-engine is usually within φ30mm, a small automatic ring welder with the model ACL-200 produced by the American MK company is selected. Tank welding machines are mainly used for butt welding of stainless steel, carbon steel, aluminum alloy and other pipes, and welding of pipelines and pipe joints. The welding range is the outer diameter of the catheter φ6～φ50mm.
Welding technical characteristics of tank welding machines.
Cleaning and tack welding before tank welding machines. Grind the inner and outer burrs of the tube end to make the tube end flush without burrs, and wipe it clean with alcohol. Manual tungsten argon arc welding is used for positioning.If tank welding machines use inappropriate positions, the position of the welding point will deviate from the neutral line of the welding butt surface.
Because the shape of the girth welding seam is relatively regular, the tack welding point that deviates from the weld cannot be covered by the normal weld, resulting in tack welding The points are on the edge and outside of the weld, making the weld surface poorly formed. If the positioning method is adopted, this kind of situation can be effectively avoided!
The welding machine for large storage tanks is a kind of tank in which oil, natural gas and other energy sources are stored. Because the tank body is too large, it cannot be shaped at once. It is made of steel plates and spliced together, so a welding machine is required in the splicing process. Although manual welding is the simplest and most direct method, it has high cost and low welding speed. Therefore, the automatic tank welding machine is widely used.
What is the working principle of tank welding machine?
What are the characteristics of tank welding machine?
What are the characteristics of using tank welding machines?
Tank welding machine uses high-energy laser pulses to heat the material locally in a small area. The energy of the laser radiation diffuses through heat conduction into the material and the material is melted to form a specific melting pool. Tank welding machine uses a new type of welding process. Laser welding is mainly aimed at welding thin-walled materials and precision parts, it can spot welding, butt welding, staple welding, seal welding, etc. to realize. The aspect ratio is high and the width of the weld is small. Small heat affected zone, low deformation, fast welding speed, smooth and beautiful weld, no need or easy treatment after welding, high weld quality, no pores, precise control, small focusing spot, high positioning accuracy, easy automation.
In contrast to the current round welding machines on the market, the tank welding machine of the MSHW series offered by WINCOO Engineering is equipped with a dual drive system as standard. This self-propelled submerged welding system can reduce tank welding time on site by 40%. Welding errors are greatly reduced, saving tank installation costs. The circumferential welding machine is suitable for top-down or bottom-up constructions of single- or double-wall storage tanks for internal and external welding. There are four standard units, but our design allows us to offer custom mounting units for non-standard applications.
Horizontal seam welding machine is responsible for welding flat corners and fillet seams in large tank automatic welding machines; therefore, it is also referred to as flat welding machine and fillet seam welding machine. It is used for welding the top and bottom of large pipes and for fillet seam welding. The horizontal seam welding machine uses a special power supply for submerged welding, which can meet the construction environment on site with good welding stability and without interference during operation. The welding power supply can guarantee trouble-free continuous operation for 8-10 years or even 15 years. Equipped with a magnetic adsorption device, it is suitable for welding seams with large angle and wind protection circuits and other tank positions.
With a large number of suppliers, WINCOO ENGINEERING CO., LTD can select the right suppliers according to customers' requirements and offer the most cost-effective tank welding machines. We offer large pressure vessels, high performance pressure vessels, industrial pressure vessels, automatic pipeline construction equipment, electrical solutions for vertical tank construction, etc.
Tank welding machine is actually a transformer with lower external characteristics, which converts 220V and 380V alternating current into low-voltage direct current. Generally, welding machines can be divided into two types according to the output power type, one is AC power and the other is DC.
Here is the content list:
l What is a tank welding machine?
l What are the specific types of tank welding machines?
l Working principle of tank welding machine.
The tank welding machine can be said to be a high-power rectifier. It is divided into positive and negative poles. When AC power is input, it is transformed by a transformer, and then rectified by the rectifier, and then outputs a power supply with reduced external characteristics.
The output terminal is on and off. When it is turned on, a huge voltage change will be generated. When the two poles are short-circuited in an instant, the arc will be ignited. The arc will be used to melt the electrode and the welding material, and the purpose of combining them will be achieved after cooling. Welding transformers have their own characteristics,The external characteristic is the sharp drop in voltage after the electrode is ignited.
1. Light tank welding machine is mainly full rivet type or mixed rivet and welding.
2. The medium tank welding machine is to forge several steel molds, then fill with solder and directly weld.
3. Heavy-duty tank welding machine, the steel plate is forged into a gear staggered shape, first buckled like a button, and then filled with solder, mainly to reduce the burden of the heavy armor on the solder.
The main component of the tank welding machine is a step-down transformer. The two ends of the secondary coil are the work piece and the electrode to be welded. They will ignite the arc during operation and weld the electrode to the gap of the work piece under the high temperature of the arc. Because the iron core of the tank welding machine transformer has its own characteristics, it has the characteristics of a sharp drop in voltage, that is, the voltage drops after the electrode is ignited; when the electrode is short-circuited due to adhesion, the voltage drops sharply.
During the welding operation of the welding machine, although the current in the circuit is equal everywhere, since the resistance is different everywhere, the resistance at the unfixed contact is the largest. According to the law of thermal effect of flow, Q = IRt: When the current is equal, the greater the resistance, the higher the heat generation. Therefore, in the welding process, the contact resistance of the electrode contact point as the contact point of the metal body is the largest, so the electric heat generated in this part is naturally the largest, and the electrode is an alloy with a lower melting point.
The tank welding machine first uses a pulse generating circuit such as a 555 time base circuit to generate a rectangular pulse wave, then uses a transistor for current amplification, and then uses a pair of complementary field-effect transistors for voltage amplification to generate high-frequency signals, and finally uses the transformer with To boost the voltage, and get the induced alternating current on the secondary winding. Its power depends on the amplification capability of the amplifying circuit.
Tank welding machines mostly use single-ended forward inverter circuits composed of IGBT tubes, and most of their control systems use pulse width modulation chip SG3525. The inverter frequency is 20kHz, which can control the external characteristics of constant current.
When the system is at no load, the PWM modulator will output pulses intermittently due to voltage feedback control. Due to the low frequency of intermittent oscillation and narrow pulse width, not only the no-load loss is small, but the transformer is not easily saturated. Because this kind of welding machine adopts the control technology with pulse width modulation PWM as the core.
What is more? WINCOO provide not only tank welding machines, but also pipe spool fabrication solutions for customers from everywhere!
Pipe Spool Fabrication Line have seven steps:blasting→cutting→beveling→fitting-up→welding→non destructive testing→paint spraying.
We need know the size,the weight,the material and clean level of the workpiece.Then we can offer suitable machine to you.
2. Cutting machine
There are three types of cutting machine,are Band saw cutting machine,5Axis CNC flame and plasma cutting and profiling machine and Cutting and beveling all in one.
We need know the size,the weight,the material of the workpiece.Then we can offer suitable machine to you.
①Band saw machine is cold cutting, suitable for carbon steel, stainless steel,there are four lines are 2-24'',8-32'',12-48'' and 24-60''.It’s PLC control,with fixed length function.
②5Axis CNC flame and plasma cutting and profiling machine is hot cutting,suitable for carbon steel.It’s also PLC control.
③Cutting and beveling all in one is cold cutting,and there are three lines are 2-16'',2-12'' and 2-8''.
3.Beveling/Facing machine groove shape are J,U,V,X and so on.It’s PLC or CNC control.Suitable workpiece dimensions are 2-16'',4-24'',8-32'',12-48'',24-48'' and 24-60''.
We need know the size,the weight,the material of the workpiece.Then we can offer suitable machine to you.
5.Welding machine,the welding procedure is Root pass→Filling→Capping,there are two types of welding machine: split type and cantilever type.
6.Non destructive testing is NDT,it has three methods of testing:RT,UT and X Ray.
7.Paint spraying is through the Spray booth to achieve.
We need know the size and shape of the workpiece,then we can offer suitable machine for you.