Aluminum coil with its nice features won more and more customers of all ages. If for some reason on the aluminum coil contaminated with dirt, not only affects the appearance will affect the use of here, to introduce the aluminum coil cleaning method. aluminum coil in the cold rolling process, due to the roll of aluminum coil surface friction and rolling aluminum volume, its surface will produce fine alumina powder off and adsorption, rolling oil and its accompanying suspension components will be left the surface of the aluminum coil aluminum coil uses, adverse effects on composite aluminum coil, painting and other finished products. Low-density aluminum alloy aluminum coil brand, high strength, high thermal conductivity, high corrosion resistance, good physical properties and mechanical properties, which are widely used in various industries due to improper selection of welding methods, resulting in deformation of aluminum alloy and other serious impact on product quality and performance before welding preparation by chemical or mechanical methods, strict trimming on both sides of the mouth of the surface slope The oxidation film is chemical cleaning using an alkali or acid cleaning the surface, the method can remove the oxide film, but also in addition to oil, the specific process is as follows: volume fraction of 6% to 10% sodium hydroxide solution, at about 70 ℃ Soak 0.5min → washing → volume fraction of 15% nitric acid at room temperature and soak 1min ongoing treatment → washing → washing → drying temperature alloy surface after a good wash as dull silver. mechanical cleaning can wind or electric cutter, can be applied to the blade, rasp and other tools for thin oxide film can also be polished 0.25mm copper wire brush to clear the oxide film. Immediately clean up after a good welding, if you place more than 4h, should be re-cleaned. specification aluminum coil, aluminum coil, aluminum rolls provided by the 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!