Hot galvanized fence in life more now a matrix material. On some attachment surface, you can make to increase firmness and achieve long-term stability of hot dip galvanized fence sales, installation or protection measures, galvanized fence is a very effective practice of the chemical composition indicators, thus ensuring forward to its good mechanical properties and impact properties of carbon structure design thinking. Heat galvanized fence: casting wall thickness due to uneven heating, cooling and phase change process, will produce effects and organizational 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 usually 500 ~ 550 ℃ holding time of 2 ~ 8h, then furnace cooling, using this technology can eliminate 90 to 95 percent within the casting stress galvanized spray fence, but does not change the cast iron structure . 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 spray galvanized fence manufacturers, 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 spray galvanized guardrail purchase, the occurrence of graphitization process. Due to the decomposition of cementite, resulting in decrease in hardness, thereby improving the machinability. Hot dip galvanized guardrail, St. Ye metal, hot dip galvanized fence Tai'an 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.