Hot dip galvanized fence factory | hot dip galvanized fence | St. Ye Ye metal provided by Linqu St. metallwarenfabrik. Road Zhiyuan, tempering forward. Linqu St. Ye metallwarenfabrik (www.shengyehl.com) to become and you win, symbiosis, strategic partners before the trip, the more determined to become the most influential metal building materials business, and you leap together to success! hot dip galvanized fence with traditional fence because in beautiful, durable, corrosion and other aspects there are many problems and gradually be eliminated. The new hot-dip galvanized fence because of electrostatic spraying elegant styling, beautiful appearance, excellent corrosion resistance hot dip galvanized fence wholesale, quick and easy installation is increasingly being accepted by the market. Coating toughness is very strong: galvanized layer and metallurgical steel layers combined with each other spray galvanized fence factory, which would form a very tough and very strong capacity of metallurgical structure, so its carrying solid and liquid energy transport will be able to produce a very large value and advantage. Heat galvanized fence: Because the casting wall thickness uneven heating, cooling and phase change process, Shandong galvanized spray 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, this process eliminates the use of 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, hot-section at the surface and thin galvanized spray fence, tend to 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.