Production process of welding rod stainless steel wire

Abstract

The invention provides a welding rod stainless steel wire production technology. The technology comprises the following steps that 1, a membrane is dried online, after a wire guided out through a wire pay-off machine keeps constant tension through a constant tension device, the surface of the wire is coated with a membrane agent, and then the wire is dried in an oven with the temperature ranging from 120 DEG C to 140 DEG C; 2, drawing is carried out many times, and the wire with the membrane dried in the step 1 is guided into a straight wire-drawing machine to be drawn continuously for 5-6 times; 3, the drawn wire is subjected to surface electrolysis acid pickling; 4, surface brightness treatment is carried out, and the wire obtained after electrolysis acid pickling in the step 3 is guided into a heat treatment furnace to be subjected to surface brightness heat treatment; 5, the wire obtained after heat treatment is subjected to water cooling, water washing and drying; and 6, powder drawing is carried out, and the wire enters a die after passing through a powder box to be subjected to one-time drawing. According to the welding rod stainless steel wire production technology, the coating and the stainless steel wire are combined closely and firmly.

Description

technical field [0001] The invention relates to a production process of stainless steel wire, in particular to a production process of stainless steel wire for welding rods, and belongs to the technical field of stainless steel wire. Background technique [0002] Welding rod is the most conventional welding material. Conventional welding rod is composed of welding core and coating. The metal welding core is covered with paint (coating). Different types of welding rods have different welding cores; welding core is the welding rod. The metal core and the composition of the welding core directly affect the composition and properties of the weld metal. The welding core is generally a steel wire with a certain length and diameter. [0003] When welding, the welding core has two functions: one is to conduct the welding current, generate an arc to convert electrical energy into heat energy, and the other is to melt the welding core itself as a filler metal and fuse with the liquid ...

AI Technical Summary

Problems solved by technology

[0005] Since the resistance value of the welding core of the stainless steel electrode is larger than that of carbon steel, the thermal conductivity is worse than that of carbon steel, and the surface tension of the stainless steel droplet is large, so the droplet is mainly short-circuited by large particles during the welding process. The prolongation of welding time and the increase of temperature will lead to unsatisfactory welding process performance; during the welding process of general stainless steel electrodes, the coating of the electrodes becomes red, the melting speed of the electrodes suddenly becomes faster, the droplet transfer is difficult to control, and the arc is erratic. The shape of the welding seam becomes poor; the red electrode is cooled and the coating cracks, which makes the electrode unable to continue to be used and causes a lot of waste, and the price of stainless steel electrodes is high, so reducing its use cost is relatively high;

[0006] Therefore, it is necessary to produce a coated electrode with high adhesion. In order to make the coating better adhere to the stainless steel wire, in addition to improving the composition of the coating, it is also necessary to make the stainless steel wire more efficient during the preparation of the stainless steel wire. In order to be uniform, the surface consistency is more uniform, so that it can be more closely combined with the coating; however, due to the lack of constant tension in the conventional stainless steel wire production process, it will result in different pulling forces. The stress on each part of the strip steel wire is inconsistent, resulting in poor uniformity and affecting the consistency after it is combined with the coating

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