In the manufacture of refrigeration equipment, the precision of the pipe welding directly determines the useful life of the product and the market reputation. Traditional fire welds are uncontrollable, welds tend to be oxidized, welded, leaks, and small gaps lead to equipment leaks of fluorine, which are always difficult for the industry to manage. The industry standard was redefined by upgrading the accuracy of the welding of the cooling tube to the micrometre level through the high-frequency induction heating technology of the zichang smart high-frequency welder。
The core advantage of high-frequency welding is that it is “precision”. The equipment uses the magnetic field generated by high-frequency current exchange to heat the copper pipe itself through the vortex effect. The heat is concentrated in the welding area, and the the thermal impact area is within 1 mm and does not cause damage to the surrounding copper tube or accessories. This “target heating” approach avoids the problem of local overheating of traditional flame welds, which are able to fully penetrate the copper tube gap, form a flat, solid metallurgical combination, have a weld-point seal of 0. 03 mm, far above the industry standard。
The value of this precision in actual production is comprehensive. First, quality upgrades, welding points with high frequency welding, stress resistance improvements 30%, leakage failure almost eliminated in the long-term high-voltage operation of refrigeration equipment, after-sale recovery rates dropped from 15% to less than 1%, and after-sale costs were significantly reduced; second, efficiency breakthroughs, with single-point welding time reduced to 10-20 seconds, and automated production lines, with a single equipment completing more than 1,000 welds a day and a shorter delivery cycle of 60%; and lastly, cost optimization, with equipment using only 60% of traditional flame welding, without gas, nitrogen gas, saving significant energy and materials costs per year, while operating simple, without professional welding, further reducing human costs。
Zichang's smart high-frequency welding technology, from mature igbt reverse technology and precision temperature control systems. The equipment frequency covers 15-80 khz, which is precise enough to match the demand for different materials, different walls, and contains a database of more than 40 welding parameters, with a single-key switch to fit different products and significantly reduce debugging times. For the industry, welding of copper aluminium flue materials is a difficult point, reducing interface stress, achieving strong connectivity and perfecting the problem of welding of copper aluminium in traditional processes, through gradient temperature control techniques。
For refrigeration enterprises, the choice of high-frequency welding is not only an upgrade of the welding process, but also a critical step in their transition to high-quality development. In an increasingly competitive industry, welding precision at the micrometre level is the core competitiveness of enterprises。
# high frequency weld #
