螺柱焊接技術的發展趨勢
2017-11-06
螺柱焊接技術的發展趨勢
The development trend of stud welding technology
螺柱焊接技術的今后發展趨勢主要是擴大應用范圍、提高螺柱焊接自動化水平和焊接設備的更新換代。其中硬件的發展是關鍵，即將晶閘管控制的焊接電源升級為逆變式焊接電源。
Stud welding technology of the future development trend is mainly to expand application scope, improve the level of stud welding automation and the upgrading of welding equipment. The hardware is the key to the development of the thyristor controlled welding power supply upgrade for inverter welding power source.
目前逆變使用的開關元件有快速晶閘管和IGBT兩種。前者的逆變頻率較低，幾kHZ，但輸出功率較大；后者頻率較高，十幾kHZ，但輸出功率較低。
The inverter using switch element has two kinds of fast thyristor and IGBT. The inverter frequency is low, a few kHZ, but the output power is larger; The latter frequency is higher, more than 10 kHZ, but the output power is low.
從電源的動特性、體積重量等方面考慮，IGBT應該是發展方向。目前已投入使用的逆變式螺柱焊接電源的輸出電流約1000A，可焊φ12mm的螺柱，主要應用在汽車行業。
From the dynamic characteristic of power source, volume weight into consideration, such as IGBT should be the development direction. Has been put into use the inverter type stud welding power source of the output current of 1000 a, weldable phi 12 mm stud, mainly used in the automotive industry.
至于焊槍的發展方向，則是電子控制。目前國內外焊槍大多是通過彈簧的伸縮來控制螺柱的升降，其可控性是相當有限的。
As for the development direction of welding torch, is the electronic control. Welding torch is mostly through the spring scale at home and abroad to control the rise and fall of stud, the controllability is quite limited.
如果采用步進電機或伺服電機控制，就可按工藝要求精確地控制螺柱的運動，焊接質量更能得到保證。特別是橋梁維修所需的大直徑超長的異型棒狀焊釘的平焊、橫焊和仰焊，則非使用這種先進的焊槍不可。事實上，有些國家已研制成功這種焊槍，并已應用到焊接工程上。
If the step motor or servo motor control, can according to the technological requirements accurately control the movement of the stud, welding quality is more guarantee. Especially the large diameter of bridge maintenance required long nail of flat welding rod welding, transverse welding and welding, is to use the advanced welding torch. In fact, some countries have developed this kind of welding torch, which has been applied to the welding engineering.
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