Use inspection of flash butt welding machine

15 Jun 2020

Use inspection of flash butt welding machine: 1. Before using the flash butt welding machine, check that the rated voltage is consistent with the power supply voltage winding (380 v or 380 v), and check that the terminal connection is correct. If this is the first run or stop flash butt welding machine used for a long period of time before using a 500 v giant ohmmeter, measuring the insulation resistance of the winding core together with ohm should not be less than 0.5 meters. 2. The primary and secondary sides of the flash butt welding machine must be reliable with nuts, copper handles and closely related cables. If the contact is not good, bolts, nuts and ring lugs. Therefore, after a period of operation of the welding machine, it will come into contact with the clean, surface oxide layer bolts connected to the fine emery cloth. 3. Flash butt welding electrode and for a long time, should avoid operation to prevent the welding part of the welding machine. 4. The working place of flash...

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What is a welding machine

08 Jun 2020

There are (more than) a few strategies to join metals by welding. Every one of these procedures converts vitality to warm in the weld zone that brings about dissolving, combination, and joining. A portion of the welding machines is straightforward handheld machines while numerous others are PC controlled machines performing numerous welds on the double or numerous welds every second. Electric arc welding - a high voltage electric potential over a hole results in an electric circular segment ( a scaled down lightning jolt) between the welding terminal and the workpiece, the electric curve raises the work-piece temperature to the softening point where the two pieces meld. There are different sorts of electric curve welding, some utilizing filler metals as the terminal, other than utilization a non-consumable tungsten anode. Regularly a dormant or other "cover gas" is utilized to shield the weld area from oxidation or different gas hurt while the metal is liquid. Some exceptionally mechan...

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What industries does the butt welding machine apply to?

01 Jun 2020

The butt welding machine is very useful between steel bars and steel bars, and can be welded seamlessly or according to customer needs. It is widely used in manufacturing industries such as wheel rims, tools, knives, wires, wire nets, window frames, etc. It has the advantages of high welding efficiency and high weld strength. The ability to weld has also evolved with varying degrees. The butt welding machine uses the two ends of the electrode to respectively press the two ports of the butt welding part. After the power is turned on, the two forging ports are gradually advanced by the forging cylinder at a set speed. The current density of the part that the port contacts first during the approach is extremely large , It will instantly liquefy to form a metal lintel and blast when there is a metal splash, that is, flash; as the port gradually approaches, the connection points gradually increase, and then the entire end surface has formed numerous liquid metal lintels, and continuous blas...

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Scope of application of cold welding repair machine for butt welding machine

26 May 2020

1. Scope of application of cold welding repair machine of butt welding machine: cold welding repair machine is a professional precision repair of small defects such as pinholes, trachoma, air holes, cracks, bruises, scratches, pits, surface wear of mechanical parts, mold wear, etc. Welding equipment. Widely used in mold industry, foundry industry, electrical appliance manufacturing industry, medical equipment, automobile, shipbuilding, boiler, construction, bridge construction and other industries. 2. Applicable materials for cold welding repair machine: cold welding repair machine uses ordinary welding wire as supplementary materials: gray iron, ductile iron, stainless steel, carbon steel, mold steel, aluminum, aluminum alloy, copper, etc. as long as it is a conductive metal Repairable. Welding by spot welding machine is flexible, simple, convenient, firm and reliable. Automatic welding machine welding is an electrical appliance that supplies certain characteristics of power for weldi...

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What kind of preparations are needed for the flash butt welding machine before welding?

18 May 2020

When the flash Butt fusion welding machines is welding, sometimes the workpiece does not carry out the end face geometry, the processing of the blank end and the surface cleaning will affect the product after welding, so what preparation should we do before welding? In flash butt welding, the geometry and size of the butt joints of the two workpieces should be basically the same. Otherwise, the heating and plastic deformation of the two workpieces will not be guaranteed, which will affect the quality of the joint. In production, the difference between the diameters of round workpieces should not exceed 15%, and that of square and tubular workpieces should not exceed 10%. When flash butt welding a large-section workpiece, chamfer the end of a workpiece to increase the current density to facilitate laser flashing. In this way, the secondary voltage can be increased without preheating or flashing. The processing of the butt welding blank end can be performed on a shearing machine, punchin...

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What is the working principle of continuous flash butt welding machine?

12 May 2020

The welding cycle of the continuous flash butt welding machine is composed of flashing, upsetting, holding and stopping procedures. The two consecutive stages of flashing and forging constitute a continuous flash butt welding head forming process. The maintenance and rest procedures are necessary in the Hydraulic welding machines operation. Preheating flash butt welding has a preheating stage in its welding cycle (before flashing). The essence of the formation of flash: turn on the power and make the ends of the two weldments slightly touch. Many small contacts with very small resistance will be formed between the counterparts. Under the heating of a large current density, they will instantly melt to form a liquid beam connecting the two ends of the counterpart. At the same time, under the effect of radial electromagnetic compression force, electromagnetic repulsion and electromagnetic gravitation on the surface tension of the liquid, strong heating is added. There is a huge pressure d...

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