test report of the resistance welding of car battery ears
一、 The welding test of power Battery copper welding machine
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1, the maximum output current of 20000A frequency inverter DC spot welder, 100 vertical cylinder under pressure mechanism.
Welding current: 14,000 A
Discharge time: 45 ms (35 ms, 50 ms)
Pressure: 0.2P
Noting: A medium frequency DC resistance spot welder, current and time are controlled accurately, without loss of energy, consistent joints;
B 100 vertical cylinder under pressure mechanism to ensure the flatness of the electrode, there is no splash situation.
2, the results of destroying test
The test is conducted by tearing . Each copper and copper have a nugget, each tear-shaped foil were tested, there remains on the melting point
二、 the welding test of the power battery foil resistance welding
1, the maximum output current of 20000A frequency inverter DC spot welder, 100 vertical cylinder under pressure mechanism.
Welding current: 13,000 A
Discharge time: 98 ms Pressure: 0.2P
Noting: A :medium frequency DC resistance spot welder, current and time are controlled accurately, without loss of energy, consistent joints;
B: 100 vertical cylinder under pressure mechanism to ensure the flatness of the electrode, there is no splash situation.
2, the test results A, solder in the "ultrasonic weld" next to welding, soldering surface is not smooth, spatter welding shape.
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B、solder in the "ultrasonic weld" position welding, welding surface smooth. The test is conducted by tearing. Each layer of aluminum foil and foil have a nugget, each tear-shaped aluminum foil were tested, it has remained on the melting point.