Description
Portable Mini Spot Welding Machine Control PCB Board DC12V 18650 Lithium Battery Spot Welding Machine Automatic
Product Description
Feature
1: 8-speed intelligent digital display spot welding machine
2: Super thick copper tube
3: Pure copper conducts and conducts heat, which greatly improves the efficiency of spot welding
4: Double-sided outlet, easy for spot welding, marked in Chinese, not easy to connect wrongly 5: Simple to use
Specification
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item
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value
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MOS core operating temperature
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175℃
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Vds
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Withstand voltage up to 40V
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Rds(on)
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Single internal resistance as low as 0.77mR
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ld
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single over current capability 300A
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Installation Instructions
Recommended power supply
1. Common working power supply:
a. 12V car starting power supply
b.30AH-35AH capacity lithium battery pack
c.12V 20-45AH lead-acid battery, good performance
d. 2S.3S.4S Lithium battery pack for model aircraft
e. 3 strings of high-rate lithium battery packs
2. The charger/switching power supply/transformer cannot be used as a power source.
Precautions
1. After the system is powered on, the digital tube displays 0. At this time, welding is not possible, and the output power (1-8 gears) needs to be adjusted through the button.
Precautions
1. After the system is powered on, the digital tube displays 0. At this time, welding is not possible, and the output power (1-8 gears) needs to be adjusted through the button.
2. It is recommended that the power supply voltage is 7V-16V, and the working current is 100-300A. Exceeding this range may damage the control board.
Spot welding principle
Spot welding is commonly known as butt welding or contact resistance welding. It uses the high temperature formed by the instantaneous high current at the contact to fuse the electrode on the metal to be welded. Excessive current will flow through the solder joints, creating matrix currents. At this time, due to the existence of contact resistance, the temperature of the solder joint rises sharply, and the solder ribbon and the substrate are instantly fused together. Therefore, in theory, to solder more firmly, you need to minimize the amount of solder tape. current or increase the substrate current, e.g. use a thinner ribbon (less than 1/2 the thickness of the substrate), or use a notched ribbon *Spot welding skills Place the nickel sheet on the side of the battery electrode that needs to be welded. Tilt the nickel piece with the test pen and tap lightly with the other test pen. The distance between the two test leads is slightly closer, and the control panel detects that the test lead is 0.5 after the placement is completed. S Trigger welding. When the solder joint becomes black, lower the gear, and when the molten pool is too small, increase the gear.
Spot welding principle
Spot welding is commonly known as butt welding or contact resistance welding. It uses the high temperature formed by the instantaneous high current at the contact to fuse the electrode on the metal to be welded. Excessive current will flow through the solder joints, creating matrix currents. At this time, due to the existence of contact resistance, the temperature of the solder joint rises sharply, and the solder ribbon and the substrate are instantly fused together. Therefore, in theory, to solder more firmly, you need to minimize the amount of solder tape. current or increase the substrate current, e.g. use a thinner ribbon (less than 1/2 the thickness of the substrate), or use a notched ribbon *Spot welding skills Place the nickel sheet on the side of the battery electrode that needs to be welded. Tilt the nickel piece with the test pen and tap lightly with the other test pen. The distance between the two test leads is slightly closer, and the control panel detects that the test lead is 0.5 after the placement is completed. S Trigger welding. When the solder joint becomes black, lower the gear, and when the molten pool is too small, increase the gear.
Details Images