The submerged arc welding of Stainless Steel Toilet Paper Holder mainly
includes arc voltage, welding speed, extension length, wire diameter and welding
current. Let's learn about it.
Stainless Steel Toilet Paper Holder
1. Arc voltage
As the arc voltage increases, the welding width of the stainless steel paper towel holder increases significantly, while the penetration depth and the weld height remain lower. However, when the arc voltage is too large, not only the penetration depth is reduced, but also the penetration is not penetrated, and the weld bead formation is poor, the slag removal is difficult, and even a defect such as undercut is generated. Therefore, while increasing the arc voltage, the stainless steel paper towel holder welding current should be appropriately increased.
2. Welding speed
If the welding speed is too fast, it can cause defects such as incomplete penetration. When the other welding parameters are constant and the welding speed is increased, the welding heat input amount is correspondingly reduced, so that the penetration depth of the weld seam is also reduced. In order to ensure the welding quality, we must ensure a certain amount of welding heat input, that is, in order to improve the productivity and increase the welding speed, the welding current and arc voltage of the stainless steel paper towel holder should be increased accordingly.
3. Wire diameter and extension length
When the other welding parameters of the stainless steel paper towel holder are unchanged and the wire diameter is increased, the diameter of the arc column is increased, that is, the current density is decreased, which causes the weld width to increase and the penetration depth to decrease. Conversely, the penetration increases and the weld width decreases. When other welding parameters are unchanged and the length of the welding wire is increased, the electric resistance is also increased. The preheating effect of the protruding part of the welding wire is increased, and the melting speed of the welding wire is increased. As a result, the penetration depth is shallow and the weld bead height is increased. The length of the wire must be controlled and should not be too long.
4. Welding current
As the welding current of the stainless steel paper towel holder increases, the penetration depth and the weld bead height increase significantly, and the width of the weld does not change much. At the same time, the amount of melting of the wire is correspondingly increased, which increases the residual height of the weld. As the welding current decreases, both the penetration depth and the residual height decrease. Effect of current on welds Under general welding conditions, the weld penetration is proportional to the welding current of the stainless steel paper towel holder. The effect of the welding current of the stainless steel paper towel holder on the shape and size of the weld when the other parameters are constant.
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