What are the precautions for the operation of the welding machine
30 Nov 2020
Butt welding machine(https://www.chbuttfusionweldingmachine.com) is also called current welding machine or resistance welding machine. Using the resistance between the contact surfaces of the two workpieces, a low voltage and large current is instantly passed through, so that the contact surfaces of the two butting metals instantly heat to melt and fuse. Key points of operation of butt welding machine: 1. The operator of the butt welding machine has been trained to be familiar with the structure, performance, and operating procedures of the butt welding machine, and master the knowledge of process parameter selection and quality inspection specifications. 2. Before operation, check whether the various mechanisms of the welder are sensitive and reliable, whether the electrical system is correct, whether the cooling water pump system is leaking, and whether the lubricating parts are well filled with oil, etc. 3. It is strictly forbidden to butt-weld steel bars with a diameter exceeding t...
Introduction to the components of the seam welder
23 Nov 2020
Seam welding is a type of metal welding that forms a bond. During welding, the weldment is pressed between the two welding wheels, and the welding wheel is rotated to drive the weldment and energized. The welding current locally generates heat through the weldment, forming successively overlapping welding spots to form a continuous weld, realizing sexual welding. Light reaction is used for seam welding of tanks, such as automobile and motorcycle fuel tanks; barrels, such as oil drums, and formed sheet workpieces, such as wheels, mufflers, radiators, etc. The seam welding machine control box is controlled by two single-chip microcomputer systems respectively to control the welding procedure and the electric heating process, so it can quickly transform various special resistance welding machines, and can also be transformed into a special controller for various high-power three-phase low-frequency heating power supplies. So the three-phase low-frequency spot and seam welder control box c...
What is the structure of the butt welding machine
16 Nov 2020
The structure of the butt welding machine is mainly composed of welding transformer, fixed electrode, moving electrode, feeding mechanism (pressurizing mechanism), water cooling system and control system. The left and right electrodes are respectively connected with the conductor of the welding transformer's secondary coil through a multilayer copper skin, and the welding transformer's secondary coil is cooled by circulating water. There are protective plates on both sides and under the welding place to prevent molten metal from splashing into the transformer and switch. The welder must frequently clean the metal splash on the protective plate to avoid short-circuit and other faults. 1. Feeding mechanism: The feeding mechanism can complete the melting and extrusion process required in welding. It mainly includes a joystick, a movable cross frame, an adjusting screw, etc. When the joystick is moved between the two poles, the electrode can be work plan. 2. Switch control: Press the butto...
What are the working principles and advantages of the butt welding machine?
09 Nov 2020
Butt fusion welding machines is also called current welding machine or resistance welding machine. Using the resistance between the contact surfaces of the two workpieces, a low voltage and large current is instantly passed, so that the contact surfaces of the two butting metals instantly heat up to melt and fuse. The butt welder uses resistance welding and flash butt welding to weld various wires, rods, rings, plates, tubes and other profiles of low carbon steel, medium carbon steel, high carbon steel and non-ferrous metals. Its design is reasonable, the quality is reliable, the operation is convenient, the working place is flexible, and the welder is easy to master. The top forging force, the distance between the jaws and the current can be adjusted conveniently according to the needs. It can be fed automatically or manually. Suitable for wire drawing, nail making, cable and wire, steel wire rope, construction and other industries. working principle: The radiator flash butt welding m...
What are the characteristics of laser welding
02 Nov 2020
Spot welding machine Laser welding is one of the greatest inventions of the 20th century. The first device in the world came out in 1960. Laser welding is one of the most advanced manufacturing technologies today. Compared with general welding methods, laser welding has the following characteristics: 1) The power density after focusing can reach 10 to the 5th power to 10 to the 7th power W/CM2. Even higher. The heating is concentrated, and the heat input required to complete the welding of the unit length and unit thickness of the workpiece is low, so the deformation of the workpiece is very small, and the heat affected zone is also very narrow. It is especially suitable for precision welding and micro welding. 2) Welds with a large aspect ratio can be obtained, and thick parts can be formed at one time without grooves. The aspect ratio of laser welding seam has reached 12:1, and the thickness of single-pass welded steel plate without bevel has reached 50mm. 3) It is concerned with the...
The possible defects and prevention measures of welding equipment in appearance
26 Oct 2020
Appearance defects (surface defects) are defects that can be found from the surface of the workpiece without the aid of instruments. Common appearance defects include undercuts, weld bumps, depressions and welding deformations, and sometimes surface pores and surface cracks. The root of single-sided welding is not penetrated, etc. visit:https://www.chbuttfusionweldingmachine.com 1. Undercut refers to the depressions or grooves formed in the base material along the weld toe. It is the gap left by the arc melting the base material at the edge of the weld and not being fully supplemented by the deposited metal. The main reason for undercut is that the arc heat is too high, that is, the current is too large and the speed of the strip is too small. Incorrect angle between electrode and workpiece, unreasonable swing, long arc, unreasonable welding sequence, etc. will cause undercut. The magnetic bias of the arc during DC welding is also a cause of undercut. Certain welding positions (vertica...