Hebei Chiho introduction of carbon steel pipe industry steel tee tee and pipe welding preparation work (1) should be carefully checked before tee and pipe welding of carbon steel welding mouth, and its thorough cleaning. Check that the weldment groove size and model and drawings consistent, whether the welding process standards, oval shape of the nozzle meets the relevant provisions; welding position should ensure that smooth and uniform appearance, no scaling problems. In addition, slag dirt, wear, rust and oil, etc. can also cause a great impact on the quality of welding must be carefully examined to avoid the above phenomenon. Ensure cleanliness at least 5 cm within the outer welding groove. Hebei Chiho-strength carbon steel pipe industry tee tee shot peening impact strength parameters are: projectile diameter, flow velocity projectile, projectile flow, shot peening time. The larger projectile diameter steel tee, the faster, the greater the projectile momentum collision with the workpiece, the greater the intensity of the shot peening. Peening residual stress formed parts and materials can reach 60% of the tensile strength of steel tee Click image processing, residual compressive stress layer depth is usually up to 0.25mm, the maximum limit of about 1mm. Shot peening intensity will take some time to ensure that the three-way alloy, after a certain time, after the shot peening intensity saturates, then extend the peening time, no significant increase in strength. Almen test the strength of the shot peening, shot peening intensity characterize the deformation of the specimen high arch. Forged steel tee, Hebei Chiho (certification), links provided by Hebei Steel Tube Co., Ltd. Chiho. Hebei Chiho Pipe Co., Ltd. (www.hbqh628.com) (www.hbqh628.com) Hebei Cangzhou, forging leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Hebei Chiho leadership with the staff warmly welcome all inquiries negotiations to create the Hebei Chiho better future.