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Mid-frequency spot welding machine weld quality inspection
Mid-frequency spot welding machines typically have two methods for inspecting welds: visual inspection and destructive testing. Visual inspection involves inspecting each project, and if metallographic examination is used with microscope photos, the welded fusion zone must be cut and extracted an...Read more -
Reasons for Unstable Welding Points in Medium Frequency Spot Welding Machines
During the operation of medium frequency spot welding machines, various welding issues may arise, such as the problem of unstable welding points. In fact, there are several reasons for unstable welding points, as summarized below: Insufficient current: Adjust the current settings. Severe oxidati...Read more -
Analyzing the Impact of Spot Welding Distance in Medium Frequency Spot Welding Machines
In continuous spot welding with a medium frequency spot welding machine, the smaller the spot distance and the thicker the plate, the greater the shunting effect. If the welded material is a highly conductive lightweight alloy, the shunting effect is even more severe. The minimum specified spot d...Read more -
What is the pre-pressing time of the intermediate frequency spot welding machine?
The pre-pressing time of the intermediate frequency spot welding machine generally refers to the time from the start of the equipment’s power switch to the action of the cylinder (movement of the electrode head) until the pressing time. In single-point welding, the total time of pre-pressi...Read more -
Precautions for Intermediate Frequency Spot Welding Machine
Selection of Current Adjustment Switch: Choose the level of the current adjustment switch based on the thickness and material of the workpiece. The power indicator light should be on after powering on. Electrode Pressure Adjustment: The electrode pressure can be adjusted by the spring pressure n...Read more -
Analyzing Electrode Materials for Intermediate Frequency Spot Welding Machines
Intermediate frequency spot welding machines require electrodes to complete the welding process. The quality of the electrodes directly affects the quality of the welds. Electrodes are mainly used to transmit current and pressure to the workpiece. However, using inferior electrode materials can a...Read more -
Detailed Explanation of Intermediate Frequency Spot Welding Machine Guide Rails and Cylinders
The moving parts of the intermediate frequency spot welding machine often utilize various sliding or rolling guide rails, combined with cylinders to form the electrode pressure mechanism. The cylinder, powered by compressed air, drives the upper electrode to move vertically along the guide rail. ...Read more -
What is the power heating stage of a medium frequency spot welding machine?
The power heating stage of a medium frequency spot welding machine is designed to create the required molten core between the workpieces. When the electrodes are powered with pre-applied pressure, the metal cylinder between the contact surfaces of the two electrodes experiences the highest curren...Read more -
What is the forging stage of medium frequency spot welding machine?
The forging stage of a medium frequency spot welding machine refers to the process where the electrode continues to exert pressure on the weld point after the welding current is cut off. During this stage, the weld point is compacted to ensure its solidity. When the power is cut off, the molten c...Read more -
Why Medium Frequency Spot Welding Machines Need Cooling Water?
During operation, medium frequency spot welding machines have heated components such as welding transformers, electrode arms, electrodes, conductive plates, ignition pipes, or crystal valve switch. These components, which generate concentrated heat, require water cooling. When designing these co...Read more -
Explaining Electrode Pressure in Medium Frequency Spot Welding Machines
The high-quality welds produced by medium frequency spot welding machines rely on electrode pressure. This pressure is the value presented by the pressure reducing valve when the upper and lower electrodes make contact. Both excessive and insufficient electrode pressure can decrease the load-bear...Read more -
What to Pay Attention to When Operating a Medium Frequency Spot Welding Machine?
Electrical Safety: The secondary voltage of a medium frequency spot welding machine is very low and does not pose an electric shock risk. However, the primary voltage is high, so the equipment must be reliably grounded. The high-voltage parts in the control box must be disconnected from the power...Read more
