The factory has a professional design, development and manufacturing teams, with many high-quality professional and technical personnel, for the manufacture of high-quality products to provide technical support hot-dip galvanizing spray Weifang fence, we have developed products to give the current positioning Social save more energy galvanized spray fence prices, while people's lives can become healthier, more beautiful. Our introduction of multiple advanced CNC equipment Shandong hot dip galvanized fence, cutting press, stamping, cutting lathes, milling machines, machining centers and other necessities for the service to provide a strong backing! Heat galvanized fence: Because the casting wall thickness uneven heating, cooling and phase transformation during hot dip galvanized fence, will have the force and effect of the stress. Also after the machining of large parts of its internal residual stress is also easy, all of which stress must be eliminated. Stress relief annealing heating temperature is generally 500 ~ 550 ℃ holding time of 2 ~ 8h, and then furnace cooling, using this technology eliminates 90 to 95% by casting stresses, the cast iron structure, but does not change. If the temperature exceeds 550 ℃ or holding time is too long, it will lead to graphite, the casting strength and hardness decreased. When casting cooling, surface and thin section was often produce white. White tissue hard and brittle, poor processing performance, easy to peel off. Therefore annealing method must be used to eliminate white tissue. During the high-temperature insulation, high travel cementite eutectic cementite decomposition and graphite, in the subsequent cooling process protection and secondary cementite eutectoid cementite decomposition also occurs graphitization process. Due to the decomposition of cementite, resulting in decrease in hardness, thereby improving the machinability. Hot dip galvanized fence prices, St. Ye metal, hot dip galvanized guardrail provided by Linqu St. Ye metallwarenfabrik. Linqu St. Ye metallwarenfabrik (www.shengyehl.com) provide customers with "zinc steel fence, galvanized fence, spray fence, cement fence" and other services, the company has "Ye Holy fence" and other brands. Focused on metal building materials industries, have higher visibility in Weifang, Shandong. Welcomes inquiries, contact: Zhaoxiang Wang.