Tank welding machine is the process of joining metal parts using various fusible alloys. The melting point of the solder is lower than that of the material to be soldered, so that the part will end the soldering through inter molecular contact on its surface without being melted.
Here is the content list:
l What is the working principle of tank welding machines?
l What is the purpose of using tank welding machines?
l What are the application significance of tank welding machines?
What is the working principle of tank welding machines?
Tank welding machines can be divided into soft welding and hard welding. The temperature of soft welding is lower than 450℃, and the temperature of hard welding is higher than 450℃. Hard welding is usually used for metals such as silver, gold, steel, copper, and its welding point is much stronger than soft welding, and its shear strength is 20 to 30 times that of soft welding. The above two types of thermal connections usually use the term soldering, because in both cases molten solder is written into two elongated gaps between the clean and close solid metal surfaces of the device.
Tank welding machines ensure the continuity of the metal. On the one hand, two metals are connected by bolts or physical attachments to each other, showing a strong metal whole, but this connection is not continuous. Sometimes if there is an oxide insulating film on the metal surface, they may even Right or wrong physical contact.Another disadvantage of mechanical connection compared with welding is that the contact surface continues to oxidize, resulting in an increase in resistance. In addition, vibrations and other mechanical shocks can also loosen the joint. Welding eliminates these problems. The tank welding machines do not move relative to each other, the contact surface will not be oxidized, and the continuous conduction method can be maintained.
What is the purpose of using tank welding machines?
Tank welding machines welding is a process of fusion between two metals, mainly for the purpose of dissolving some of the metal in contact with the solder in the molten state, and the surface of the metal being welded often has a thin oxide film that cannot be dissolved by the solder. The flux is used to remove this oxide film. The tank welding machines welding process usually includes:
l 1) Melting of the flux to remove the oxide film on the surface of the welded metal;
l 2) Melting the solder makes the impure substances and lighter flux suspended in it float to the surface;
l 3) Some dissolve some metal connected with solder;
l 4) Cool and end the melting of metal and solder.
Through temperature changes, humidity, vibration, etc., even a bad solder joint can cause some or all of the system to lose control. There are countless welding points in the equipment, and the reliability of these welding points should even be higher than the equipment itself.
For the purpose of using tank welding machines, research in this area has led to the addition of knowledge of materials and their properties, and many developments have been made in the possible welding processes. Welding technology is an accompanying technology.
With the development of the electronics industry, more useful packaging technologies and smaller components will certainly continue to emerge. Welding technology will also continue to be developed to meet the needs of the electronics industry and environmental issues. This is why welding is becoming more and more professional for technology professors who work in the electronics industry today!
What are the application significance of tank welding machines?
The auxiliary equipment of the tank welding machines includes gas welding glasses to prevent the operator from being damaged by the ultraviolet, infrared or other rays generated by the welding arc or other welding energy, the mask to protect the eyes, face and neck of the welder during arc welding, white work clothes, welder gloves and protective guards.
l Energy efficient.
The energy saving of the electric welding machine is embodied in two aspects: energy saving at no load and energy saving at load. According to relevant statistics, in 2008, the demand for tank welding machines in the domestic welding industry was 890,000 units. If all electric welding machines are used, it can directly save 43,000 tons of copper, 64,000 tons of steel, and save 680 million KW.H of electricity. It saved 566,500 tons of coal, 10.34 million tons of water, and reduced 1,144,500 tons of CO2 emissions. It can be seen that vigorously promoting tank welding machines has huge economic and social benefits.
l Stable performance
Since the working frequency of the tank welding machines is above 20KHZ, it has a faster response speed, and the droplet transfer can be subdivided into multiple stages for control. For CO2 gas shielded welding, spatter can be greatly reduced. For pulsed melting pole MIG/MAG welding, the stability of jet transition can be effectively controlled, and the droplet transition and the movement of the wire feeding mechanism can be combined to further control the melting. During the dripping transition process, a good weld formation is obtained and the welding performance is stable. These are things that traditional rectifier welding machines cannot do.
l Centralized control
The tank welding machines uses a large number of digital controllers such as single-chip microcomputer, DSP, FPGA, etc., and realizes the network communication between multiple welding machines or the upper computer and the welding machine through Ethernet and field bus. It not only solves the problem of coordinated operation of multiple welding machines, and facilitates centralized control in the welding process, but also realizes the setting or monitoring of remote welding machine parameters, making remote fault diagnosis and maintenance of tank welding machines possible.
