Orbital Welding Machine for Pipeline Construction- Manufacturers Factory Suppliers From China
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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.
What is a 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.
What are the specific types of tank welding machines?
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.
Working principle of tank welding machine.
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.
Automatic welding machine refers to the machine equipment that welds the annular gap. For example, the welds between the upper and lower covers of a household air-conditioning compressor and the housing are welded by a ring welder. Automatic welding machines are divided into vertical girth welding machines and horizontal welding machines. Generally, the welding machine used for the ring welding machine is gas shielded welding with automatic wire feeding. Next, by introducing the automatic welding machine provided by WINCOO, the application environment of the tank welding machine will be described in detail.
Here is the content list:
l Research background of tank welding machine.
l The application prospect of tank welding machine in the future.
l What are the application environments of tank welding machine?
Research background of tank welding machine.
Metal pipe welding is an important part of aeroengine. Fuel, lubricating oil, air, oxygen and other working media in each system rely on metal pipes for transmission. Aviation engine pipeline parts have many types, large quantity, and high accuracy grade. Therefore, the requirements for manufacturing precision and quality are very high, and the requirements for manufacturing methods are getting higher and higher.
The main manufacturing method of metal conduit is tank welding machine welding. The welding of metal conduits of aero-engines mostly adopts manual argon arc welding, flame brazing, induction brazing, etc. The above-mentioned welding method is easy to operate, simple in equipment, low in cost, and low in requirement for a single welded pipe. Pipes, so it is widely used for pipe welding.
However, these welding methods are manual operations, which require very high skills for tank welders. Usually the weld formation is not ideal, and defects such as weld deviation, dents, weld leakage and incomplete welding will occur.
The application prospect of tank welding machine in the future.
In recent years, with the large-scale application of metal conduits, the welding quality requirements of metal conduits have become higher and higher, and the welding of automatic welding machines has become an ideal conduit welding method.
In the 1990s, there was an automatic girth welder for welding metal pipes. The diameter of the welded pipe could cover all the metal pipes on aero engines.Therefore, in recent years, automatic welding machines have been applied to the welding of metal conduits of aero-engines and have achieved success.
What are the application environments of tank welding machine?
In the operation of picking and exchanging electronic components, a tank welding machine welding process is required. Often in order to locate the problem of the circuit function, it is necessary to remove the components from the printed circuit board and perform the necessary measurements.
Generally, the reliable and successful operation of equipment related to space, defense, medical electronics, traffic control systems, communication systems, and supervision and control systems all rely on excellent tank welding machine welding.
1) Disassembly of extra components;
2) Inspection of components;
3) Exchange of defective components;
4) Check the circuit function.
The welding technology of the tank welding machine is an accompanying technology. With the development of the electronics industry, more useful packaging technologies and smaller components will certainly continue to appear, and tank welding machines will continue to be developed to meet the needs of the electronics industry and environmental issues. This is why for technology professors working in the electronics industry today, welding has become more and more professional!
Wincoo Engineering Co., Ltd (WINCOO) is committed to providing customers with the most suitable equipment, involving pipeline manufacturing, storage tank construction, pipeline construction, industrial production lines, clean energy projects and other industrial fields. Next, we will introduce the characteristics of tank hydraulic jacking system in detail.
Here is the content list:
l What is the service scope of tank hydraulic jacking system?
l Product parameter introduction of tank hydraulic jacking system.
l Production technical characteristics of tank hydraulic jacking system.
What is the service scope of tank hydraulic jacking system?
WINCOO is committed to providing customers, manufacturers, EPC/C companies with the most suitable solutions/equipment, involving pipeline manufacturing, storage tank construction, pipeline construction, industrial production lines, clean energy projects and other industries field.The scope of supply of our tank hydraulic jacking system:
l x 1 set of power pump station: hydraulic power supply, electric motor power 4KW, rated flow of about 15l/min.
l 5 sets of x jack cylinders: rated 25 tons (18 tons, 100%) (including hydraulic jack device components-steel cables, support devices, tie rods, etc.)
l The fuel tank structure requires a jacking control system.
l Each jacking control system includes: 1 set of x electrical control and operation panel.
l Each set includes: 1 centralized PLC operation control box, 1 power supply cabinet with centralized buttons and automatic PLC control system or single handle operation control.
l Motor and PLC are both SIMENS brand!
l The main electrical components are Schneider brand!
l Joint ventures with well-known brands in the United States and China!
Product parameter introduction of tank hydraulic jacking system.
Maximum output force
Maximum lifting height
Cylinder lifting speed
Oil pump flow
Motor working voltage
about 220 V
Electromagnetic directional valve voltage
about 220 V
Required temperature range
Production technical characteristics of tank hydraulic jacking system.
1. The tank hydraulic jacking system is composed of hydraulic pump station, cylinder, steel wire and stroke, easy to install and operate.
2. The tank hydraulic jacking system uses PLC central control to handle elevators. Each power unit is equipped with an auxiliary balance device to ensure the accuracy of simultaneous lifting.
3. The tank hydraulic jacking system has two operating modes: auxiliary manual control and central control. The cylinder can be adjusted to lift individually, or it can be combined with several other lifts to form a group, or it can be integrated into multiple groups of lifting to achieve better accuracy and better welding effect.
4. All cylinders are equipped with safety valves, which can be automatically locked, even in the case of power failure, high-pressure hose rupture, bursting, it can prevent the cylinder oil tank from falling.
5. The cylinder is equipped with a high-pressure hose to avoid oil leakage that often occurs with traditional multiple hoses. The cylinder will return to its original state due to its own weight.
6. The stroke of the hydraulic cylinder of the tank hydraulic jacking system is 1475mm, which can be lifted in a single step by 2630plate to meet each annular shell. Greatly reduce time waste.
7. The basic height of the hydraulic cylinder is 2050mm, which can be used with automatic ring welding machine for inner ring seam welding.
8. Module configuration, the number of tank hydraulic jacking system can be adjusted according to the size and weight of the tank.
9. High efficiency, it only takes about 15 minutes to rise or fall each time.
10. The tank hydraulic jacking system can work well with our tank welding machine, which can greatly reduce labor costs and reduce construction time
11. Usually a horizontal seam welder can be equipped with 6-10 skilled welders, a vertical seam welder can be equipped with about 20 to 30 skilled welders, and a butt fillet welding tractor can be matched with 6 to 15 skilled welders.
Laying-off is the processing of steel plates or sections into the parts or components required by the drawings.
1. Steel plate laying-off: first is to find 90 degrees, and then draw the cutting range with a tape measure and powder line (according to the thickness of the plate plus cutting allowance), if you need to drill holes for drilling, if you need to open groove groove processing.
2. Section laying-off: first find 90 degrees with seat ruler or bend ruler, and then cut the line with seat ruler or bend ruler (also add cutting allowance),if you need to drill holes for drilling, if you need to open groove groove processing.
3. Splicing of remaining materials：Plate splicing and section splicing.
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