Points to note when working with a spot welder

06 Jul 2020

Pay attention to the following when using the spot welding machine: 1. Whether the air pressure is above 1kgf/cm2; 2. Bad pressure reducing valve; 3. Leakage of O-ring, replace O-ring; 4. Oil is lacking in the pressure head, please fill in oil. 　　To avoid welding spatter, noise, etc. endangering you and others, please use protective equipment. 　　Splashes can burn eyes, noise can hinder hearing 　　 1. Please wear protective glasses. 　　 2. Please use protective gloves, long subsidies clothes apron and other protective equipment. 　　 3. Set up a protective barrier around the welding place to prevent splashing from endangering others. 　　 4. When the noise is high, please use sound insulation equipment. 　When welding, never put your hands or the like between the electrodes. If the pressure of the electrode is large to hundreds of kgf, it will cause serious injury.       Zhejiang Cheng hong machinery co., LTD is a professional engaged in PE, HDPE, PPR thermoplastic piping engineering mach...

Read More

Advantages of spot welding projection welding compared with spot welding

30 Jun 2020

1 spot welding machine can weld multiple welding points at the same time in one welding cycle, which not only has high productivity, but also has no diversion effect. Therefore, solder joints can be arranged on narrow parts without being limited by the pitch. 2 Because the current is concentrated on the bumps and the current density is large, it can be welded with a small current and can reliably form a small nugget. In spot welding, it is difficult to form a nugget smaller than a certain size corresponding to a certain plate thickness. 3 The position of the bumps is accurate, the size is consistent, and the strength of each point is relatively uniform, so for a given strength, the size of the bump welding spot can be smaller than the spot welding. 4 Because the large flat electrode is used, and the bumps are designed on one workpiece, it can minimize the indentation on the exposed surface of another workpiece. At the same time, the current density of the large plane electrode is small...

Read More

Automatic cutting butt welding machine needs matching options

22 Jun 2020

In the process, the automatic shear butt welding machine is used, and different products need to be configured according to different products. 1, Welding of workpieces with a length of more than 2000 mm, due to equipment errors or the workpiece itself, it is easy to cause welding molding, or a bad weld offset, or an oscillating system, so a tracking system needs to be configured to overcome the bending or undercut of the weld Defects such as under-penetration can truly realize automatic welding and achieve the effect of providing efficiency and welding quality. The right swing device forms a complete set of automatic shear butt welding machine. 2, Welding more than 2mm thick steel cylinder, due to the large gap between the welds, the base metal melting workpiece itself cannot be fully welded, welding defects, and then need to add an automatic wire filling body to increase the molten metal to fill the weld during the welding process To achieve high-quality welds. Heat source selection ...

Read More

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...

Read More

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...

Read More

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...

Read More