Precautions for selecting welding materials
1. Stainless steel welding strip can be divided into two types: titanium calcium type and low hydrogen type. DC power supply should be used for welding current during welding, which is helpful to overcome the redness of welding rod and penetration. The titanium calcium type coating welding material is not suitable for all-round welding requirements, only suitable for flat welding and fillet welding.
2. The surface of stainless steel electrode should be kept dry when it is used. In order to prevent surface cracks, pores, pits and other issues. Do not repeatedly dry, otherwise the coating will fall off easily.
3. The welding joint of welding materials should be cleaned to prevent the welding rod from being stained with dirt, which will affect the welding quality.
4. To prevent intergranular corrosion caused by too long heating time, the welding current should not be too large, the arc should not be too long, the interlayer should be cooled quickly, and narrow channel welding should be adopted.
This article comes from the customization of automatic welding equipmenthttp://www.santacatalinainn.com
-
12-20
Methods to reduce welding deformation and control
I. causes and types of welding deformation causes of welding deformation: welding deformation refers to the deformation of weldments during and after welding. During welding, the molten metal and the base metal near the seam expand and produce plastic deformation. During solidification, the weld and the metal near the seam contract. This is the longitudinal stress and the transverse stress. Make the weld longitudinal and transverse shrinkage, so that the weldment deformation. Because the heat e
-
12-20
Specific differences between grinding machine and polishing machine
Difference: the workpiece processed by grinding machine is rough, and the surface finish of workpiece processed by polishing machine is better, but high finish can be achieved by installing precise grinding wheel on grinding machine. Grinding machine: electric grinder reciprocating electric polishing grinder (also known as file mill). It is widely used in the fine machining and surface polishing of the mold profession. It is a substitute for similar pneumatic products. The main outstanding featu
-
12-20
How to improve the efficiency of straight seam welding machine?
The straight seam welding machine is widely used in ordinary times, and our appeal to the seam welding machine is constantly strengthened. We should know about the operation of the seam welding machine. The straight seam welding machine is not only excellent in spot welding machine, but also excellent in seam welding machine. A good machine must be equipped with a good operator. It is not simple to be a good operator. In addition to the accumulation of time experience, it also needs many tips, s
-
12-20
How to deal with the failure of welding robot?
General welding robot factory has the following shortcomings: a) human shortcomings caused by improper operation, mainly including welding gun damage in welding robot factory, improper loading and unloading of workpieces, and no deformation of positioner follow-up. B) the disadvantages of poor design and manufacture of peripheral equipment mainly include: problems of lifting way switch and cable, quality problems of some components flashed by teaching device. C) improper environmental protection