Caused by welding operations in the second accident, many are caused by some bad habits, habits, though small, but once caused the accident, the consequences are still very serious.
In order to Welding Wire , welding welder to do the actual work process should pay attention to put an end to what used to: 1. Unloading at the site, the foot will be ...
Caused by welding operations in the second accident, many are caused by some bad habits, habits, though small, but once caused the accident, the consequences are still very serious.
In order to welding safety, welding to do the actual welding process should pay attention to put an end to what used to:
1. Unloading at the site when the ground with their feet kicked the cylinder;
2. Oxygen purge material and work-site work, or bicycle tires filling with oxygen, with oxygen
gas as a power source of the paint;
3. In use the torch, cut steel gun with a muzzle or head and the ground surface friction, and use this to eliminate mouth head obstruction;
4. The welding torch, cutting torch hanging on the acetylene cylinders;
5. More welding machines share a power switch, or shared with other electrical equipment, a power supply circuit;
6. Using various channels the room, plant rail welding or other metal structures as loops;
7. Oil and dirt with a stick with gloves, wrenches open the cylinder;
8. Welding clamp fever, use cold water immersion cooling methods in use;
9. Tools or other heavy objects on the Nickel Welding Electrodes;
10. Wear slippers in summer and winter wear slippery shoes into the construction site
â‘ different intensity level + low carbon steel alloy (or low-alloy steel + low-alloy high strength steel)
General requirements for the strength of the weld metal or joints welded metal of not less than two kinds of minimum strength, the choice of the strength of deposited metal electrode should be able to ensure the strength of the weld and joint strength of the lower voltage of not less than the strength of base metal, while the weld metal ductility and toughness should not be less than voltage higher strength and ductility performance of the base metal. Therefore, according to the two lower levels of intensity among the selected steel electrode. However, in order to prevent weld cracks, should be a higher intensity level, poor welding of steel to determine the welding process, including welding specifications, preheating temperature and post weld heat treatment and so on.
â‘¡ low alloy austenitic stainless steel +
Should be in accordance with the chemical composition of the deposited metal limit values ​​in the selection of electrodes, generally used in higher levels of chromium and nickel, plastic and good crack resistance of austenitic steels Cr25-Ni13-type electrode, in order to avoid brittle hardened tissue caused by cracks. However, poor welding of stainless steel should be determined and the welding process specification.
â‘¢ stainless steel sheet
Should consider the grassroots level, stratified, transition requirements of the Welding Electrode selection of three different properties. Of the primary (carbon steel or low alloy steel) welding, choose the appropriate intensity level of the structural steel welding rod; stratified direct contact with corrosive media, should use the corresponding components of austenitic stainless steel electrode. The key is the transition layer (ie, cross-stratified with the primary interface) welding, must take into account the dilution of the matrix material should be used in high chromium and nickel content, good ductility and crack resistance of austenitic steels Cr25-Ni13-type electrode.
keywords:Nickel Welding Rod