不锈钢焊丝怎样焊接（How to weld stainless steel wire）.docVIP

不锈钢焊丝怎样焊接（How to weld stainless steel wire） How to weld stainless steel wire Steps / methods: Including 1. conditions around the welding: parent material, plate thickness, groove shape, joint form, constraint state, environment temperature and humidity, cleanliness, according to the above factors and determine the wire (or rod) type and diameter, welding current, voltage, welding speed, welding sequence, welding method, transport guns (or transport) method etc.. The 2. connection methods of welding joint. Welding joint, including weld fusion zone and heat affected zone of three parts. Joint basic forms: butt and fillet, lap and T type etc.. In the welding joint on the cross section of the base metal melting depth. When welding, the welding seam position at. A welding, vertical welding, horizontal welding and overhead welding etc.. The 3. connection methods of welding steel structure called welding structure. According to the requirements of the design or process - groove, welding welding parts to be processed into a certain shape, the groove formed after assembly. For the welding penetration section and reduce the fusion ratio; common groove forms: I, V, Y, X, U, K, J etc.. 4. in order to slow cooling rate after welding, prevent cold crack. In order to eliminate the welding residual stress and improve the microstructure and properties of welded joints. To ensure the welding quality control relies on five links: people, machine, material, method and environment. One welders operating skills and experience for welding equipment with high performance and stability of cutting - welding materials of high quality by the correct welding specification and standard operation ring and good welding work environment before welding on welding test and evaluation of welding process, welding process planning is the Regulations, is the guarantee the important factors of welding quality. 5. welding groove and the surface if there is oil (paint), water, rust and other impurities, mel