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轧辊的治耗在钢材的成本中占有着很大的比重。由于钢材产量的增加,各国对降低轧辊的消耗,提高其使用寿命作了大量的工作,其中以电弧自动堆焊应用最广。虽然电弧自动堆焊修复轧辊效果较好,但还存在着一些问题和缺点:工艺复杂、容易产生缺陷、投资大、成本高等。为了寻求新的途径,现就应用振动堆焊的方法来修复轧辊作初步探讨。 (一) 振动堆焊的优点及工作原理: 振动堆焊是电弧焊的另一种形式,不同的是用较低的电压(工作电压V=12～16伏)进行,同时电极以频率为100次/秒不停振动,成脉冲电弧形式发生熔接,它具有以
Roll of the consumption of steel in the cost of accounting for a large proportion. Due to the increase of steel production, various countries have done a lot of work to reduce the consumption of rolls and improve their service life, of which arc automatic welding is the most widely used. Although the automatic arc welding repair roll better, but there are still some problems and disadvantages: complex process, prone to defects, large investment, high cost. In order to find a new way, the application of vibration surfacing method to repair the roll for preliminary discussion. (A) the advantages and working principle of vibration welding: Vibration welding is another form of arc welding, the difference is the lower voltage (working voltage V = 12 ~ 16 V), while the electrode at a frequency of 100 Seconds / second non-stop vibration, into a form of pulse arc welding occurs, it has to