Never air weld The welding head relies on contact resistance to remove paint. It is a very precise part. If it is welded once, the life of the welding head can be reduced by half. Air welding means that the tip of the welding head does not come into contact with other heat transfer objects when the ignition occurs, often in the case of not paying attention to the welding head, grinding the welding head, lifting the welding head clamp, so we should pay great attention to the above operation, remember to turn off the power supply. Parameters should not be too high, especially for new welding heads If the new welding head uses large parameters at the beginning, as long as the fire will become as bad as the old welding head, and the truth is the same as air welding. Therefore, for each new welding head, the time should be adjusted below 12MS, the voltage should be adjusted below 0.90V to start the welding test, and then the voltage should be adjusted higher according to the effect. According to the current situation of welding products, we suggest that the time is generally around 10-12MS, and the parameter should be adjusted to about 0.80-0.90V when the new welding head is tested. If the welding is not firm, then the voltage should be increased step by step. The time and pressure need not be changed often, and the pressure can be between 8-22OZ. Method of grinding welding head When the welding head is not firmly welded or the line is brought up, the first thing should be to grind the welding head, rather than adjust the parameter. When grinding the welding head, it should be noted that it can not be grinded with too much force. As long as it is necessary to use the polishing piece or W5 fine sandpaper to gently grind one or two times to clean the bottom of the welding head. Don't loosen the welding head too often The middle of the welding head is insulating glue, tightening the welding head and then loosening will affect the contact position of the welding head on both sides of the tip, resulting in a very bad welding effect, so it is strongly recommended that after the welding head is installed, the welding head can not be used until it is taken out, do not often disassemble the welding head in the middle. The clamp of the welding head should be clean As the welding is using a large current, the reason for often large parameters is that there is a lot of dirt where the welding head is clamped, which seriously affects the flow of current. It is recommended to clean the area once a month. Align the lines correctly There are two main points on the line. One is that the line should pass both sides of the bottom end of the welding head. The other is that there is an error when you look at it. Each welding head is different, and the same parameters cannot be used The welding head is a very fragile and precise product, which has a standard range at the factory, but because the connection effect of different machines is not the same, the surface oxidation degree of different products is not the same, the time of placing the welding head is different, and the oxidation degree is not the same, at the same time, the tolerance of each welding head is not the same, although they are in the qualified range, but because of the effect of the welding spot and the machine, The connection effect, the oxidation degree of the welding surface, the situation of the line, the strength of the foot and other factors are related, so the corresponding parameters of each welding head should be different. Strictly speaking, there is no way to achieve two welding heads with exactly the same welding effect, but as long as the parameters are appropriate, the welding effect is in a range or little difference. Only in accordance with the above requirements to do, so that the welding head welding effect is very good and achieve the longest service life.
Method of use for extending the life of spot welding head
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