China's export is increasing

　　All four discuss the situation with size. Stainless steel specification, four-way discussion situation type tee and jumper type cross situation specification is difference. Undertake type stainless steel spool used in variable diameter larger than the four-way, can eliminate the diameter of the nozzle at the same time reducing signs. Variable diameter smaller stainless steel spool is accepted jumper to discuss the situation, in order to open area, can eliminate fittings to guaranteeing pipe rigidity. Deal with large diameter spool to discuss the situation, we must eliminate the interface when the next, and the hatred, to stop to meet the local stress.

　　Cross the processing of the interface. Interface is held with oxyacetylene cutting, four-way interface means less than using oxyacetylene cutting, we will held admitting the plasma cutting. After cutting, grinding with grinding machine lingo, with reciprocating in addition to the progress of carbide layer and the shape precision of lingo, against a steel hardenability is very strong, we will accept a cutting machine.

　　Cross welding. Four-way held discussion welding to accept jumper type welding, the welding electrode point to discuss the welding energy is smaller, and if held to admitting the undertaking type welding, the electrode to discuss this understanding is big, not suitable for use of ordinary stainless steel spool.

　　We have adopted advanced production equipment and technologies to manufacture our butt welded pipe 90 deg elbow and long radius elbows, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.

　　Cross the disposal of the punishment after welding. To deal with some of the quenching hardness of steel, we can accept after welding heat treatment of punishment to eliminate the welding power, thus to prevent crack occurs. Resettlement site welding four-way, influenced by region, disposal of punishment in welding are now accepted infrared ceramic heating disposal punishment after welding method, to eliminate welding crack of coordination and after welding environment.