Hebei steel pipe industry Chiho tee factors influence coverage of parts and materials hardness, projectile diameter, spray angle and distance, shot peening time. When peening intensity at the specified conditions, the hardness of the parts is less than or equal to the standard test piece hardness can reach 100% coverage; the other hand, the coverage will decline. In the same projectile flow, the longer the distance between the nozzle and the workpiece, the smaller the angle of ejection, the smaller the diameter of the projectile to reach the shorter the time required coverage. When peening, you should choose the right size projectiles, spray angle and distance, so that shot peening intensity and coverage while achieving the required value. Due to the surface roughness of steel shot injection, the surface roughness of the workpiece of carbon steel tee produce some changes. Factors affecting the surface roughness has the strength and hardness, projectile diameter of parts and materials, the original surface angle and speed of injection, parts of roughness. Under the same other conditions, part material strength and surface hardness higher the value, the more difficult the plastic deformation, the more shallow crater, the smaller the surface roughness; the smaller the diameter of the projectile, the slower the speed, the more shallow crater, surface roughness becomes small; injection angle, the projectile velocity component normal to the smaller, the smaller the impact, the more shallow crater, the larger the cut the projectile velocity projectile abrasive surface of the greater stainless steel three Tong, surface roughness smaller; the original surface roughness is part one of the factors, the rougher the surface of the original, lower surface roughness after blasting smaller; on the contrary, the smoother the surface, the surface becomes after blast rough. When the parts are high-intensity blast, the deep crater, not only to increase the surface roughness, but also form a large stress concentration, severely weakened the effect of shot peening blast tee Chiho Hebei Industry Sandblasting Introduction 1. The blast tee tee shot peening Before understanding the concept of stainless steel tee shot peening technology, we need to blasting, three confusing concepts sandblasting, shot peening explain. These three concepts are in fact the words: spray, throw, balls, sand, which is a process for the blast, pill sand is the material used. Spray with high pressure air will pill, sand blown surface of the workpiece, throwing a projectile with a high-speed rotating blade to the surface of stainless steel three-way quote, pill use is steel shot, sand using quartz sand. Shot peening process is injected into the process a large number of projectiles on the surface of the part, like countless hammer hammering on the surface, so the surface of metal parts have an extremely strong plastic deformation, so that certain parts of the surface layer thickness of work hardening, called surface hardening layer, the reinforcing layer can significantly improve fatigue strength of parts. Strengthen quality assessment pill has three basic parameters: strength, coverage and surface roughness. Tongchuan stainless steel tee, Hebei Chiho, forged steel links provided by Chiho Hebei Industry Co., Ltd. Hebei Chiho Pipe Co., Ltd. (www.hbqh628.com) (www.hbqh628.com) is specialized in "all kinds of forged pipe fittings, elbows, tees, reducers, flanges." Enterprises, companies adhering "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Yang Qinglong.