Factors affecting the welding quality of Plasma Cutting Machine accessories
In the process of using plasma cutting accessories, we will weld it, but in the process of welding, sometimes the welding quality is not good. If the welding quality is not good, it will seriously affect our Productivity. So what are the factors that affect the welding quality of plasma cutting accessories? Next, let the editor take a detailed look at the factors that affect the welding quality of plasma cutting accessories.
1. Welding materials: electrodes for manual arc welding, welding electrodes for submerged arc automatic welding and gas shielded welding, etc., become part of the weld metal after melting, which directly affects the chemical composition of the weld metal, and the flux also affects the weld chemistry ingredient.
2. Welding wire inclination angle: The method and size of the welding wire inclination angle are different, and the effect of the arc on the force and heat of the molten pool is different, so that the influence on the weld formation is different. During forward tilting, the effect of the metal in the molten pool at the rear of the arc force is weakened, the liquid metal at the bottom of the molten pool is thickened, and the penetration depth is reduced, while the preheating effect of the arc on the base material in front of the molten pool is strengthened, so the melting width is increased. The larger the welding wire inclination angle a, the more obvious this effect. The situation is reversed for backward tilt welding. In actual work, backward tilt welding is only used in certain special circumstances.
3. Welding method: The heat sources of different welding methods have different temperature levels and different degrees of heat concentration. Therefore, the size of the heat affected zone and the thickness of the welded joint are different, and the performance of the joint is also different. In addition, different welding methods have different mechanical protection effects. Therefore, the purity of the weld metal, that is, the content of harmful impurities is different, the performance of the weld will also be different.