304L stainless steel roll how much money

Steel coil has a relatively simple process, rapid continuous production characteristics, in the civil construction, petrochemical, light industry and other departments have a wide range of uses. Used to transport low-pressure fluid or made a variety of engineering components and light industrial products.

Steel plate production process: straight seam" welded steel pipe is a high-frequency welding unit will be a certain size of the strip into a round tube and straight seam welded steel pipe.

High-frequency welding is based on the principle of electromagnetic induction and AC charge in the conductor of the skin effect, proximity effect and eddy heat effect, so that the edge of the weld steel to the local heating state, the roller extrusion, so that the butt weld to achieve indirect Together, so as to achieve the purpose of welding welding.

High-frequency welding of steel is the use of alternating current skin effect and proximity effect, steel (strip) after rolling molding, the formation of a cross-section of the circular tube.

Rotating one or a group of resistors (magnetic bars) near the center of the induction coil in the tube, the resistor forms an electromagnetic induction circuit at the opening of the tube, under the action of the skin effect and the proximity effect.

The edge of the tube opening has a strong and concentrated thermal effect, so that the edge of the weld quickly heated to the temperature required by the pressure roller squeeze, the molten state of the metal to achieve intergranular bonding, after cooling to form a solid butt weld.