Uneven cooling will also affect the quality of the weld. Indeed manufacturer specializing in the production of aluminum tee, when using graphite products as the introduction of the feed shoe, contact with the graphite side profile also has a black belt prone to oxidation phenomena, especially in the hot summer months. This is due to the characteristics of graphite so that a local temperature rise profile, thereby accelerating the grown crystal grains at the surface of the weld. But the cooling capacity of the device enough, you can avoid this free acidity (FA) FA determination of free acidity of Shandong Aluminium pickling tank tee suppliers, is to verify the effect of the level of pickling tank rust most direct and effective evaluation methods. Free acidity low aluminum tee, rust poor results. Free acidity is too high, the work environment mist content is large, is not conducive to labor protection; aluminum surface is easy to produce "excessive corrosion" phenomenon; and residual acid cleaning more difficult, easily lead to contamination of subsequent bath. Shandong Aluminum tee manufacturers, aluminum tee, rolls supplied by Alcoa Aluminum Co., Ltd. Jinan rolls. Jinan Heshun Aluminum Co. (www.jnhsly.com) strong, credible, in Jinan, Shandong aluminum products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead rolls in aluminum and you hand into the brilliant, for a better future!