Spiral welded pipe
After the spiral steel pipe rusts, tools such as a wire brush are mainly used to polish the surface of the steel. The cleaning and preheating of the spiral pipe can remove loose or raised oxide skin, rust, welding slag, etc. Manual tools can achieve Sa2 level rust removal, while power tools can achieve Sa3 level rust removal. If the surface of the spiral tube is firmly adhered with iron oxide, the rust removal effect of the tool is not ideal, and the anchor depth required for anti-corrosion construction cannot be achieved.
On the basis of traditional applications, new applications have been added, which makes the use of spiral steel pipes more abundant and also reduces the cost of using spiral steel pipes. The radio frequency sensor provides a smooth flow of electricity of 200 volts and 50 amperes through the spiral steel pipe, and heats the experimental sample through induction.
The spiral tube itself does not heat up, but the experimental sample will have a significant fever. When the heating temperature exceeds the arc melting machine, the radio frequency sensor will provide more control, allowing scientists to adjust the specific composition ratio of the alloy. Spiral steel pipes have strong pressure bearing capacity, good plasticity, and are easy to weld and process into shape; Spiral submerged arc welded spiral steel pipes (SY5037-83) are commonly used for low-pressure fluid transportation, and are made using double-sided automatic submerged arc welding or single sided welding methods for water, gas, air, and steam.