This week the domestic spot alumina price of the underlying market as a whole showed steady trend, major companies continued tight supply of alumina, alloy compacts company, mostly small amounts of transaction-based. The market price at the end bits gradually recognized and accepted that aluminum purchase more cautious, wait and see mood darker. Current domestic spot alumina price is 2880-2930 yuan / ton, import reference price in 3000-3100 yuan / ton. As part of the downstream aluminum businesses resume production and expansion, present, Shandong, Henan, the main aluminum business inventories continued to remain low. With domestic alumina prices steadily rising, imported alumina showed no market price situation. It is understood that the current tight supply port, with little turnover: First, the price of alumina in the external disk close to the background, in part because aluminum is expected to start some imported alumina from abroad for resale into the pre-occupied. Second, no major sellers of goods, aluminum has imported sources of stock and wait and see, will significantly raise prices. When casting, the mixing of molten aluminum furnace temperature was maintained at 690 ~ 7l0 ℃, the temperature distribution of molten aluminum plate is maintained at 685-690 ℃, the casting speed is 190 ~ 21Omm / min, cooling water is 0.147 ~ 0.196MPa. Casting speed and square cross-section of a wire bar proportional: VD = K where V is the casting speed, mm / min or m / h; D for the ingot cross-section side length, mm or m; K is a constant value, m2 / h , usually 1.2 to 1.5. Vertical semi-continuous casting is sequential crystallization, after casting molten aluminum into the hole, alloy compacts, began to crystallize in the mold wall and the upper chassis, alloy briquettes manufacturers, due to the different centers and the side of the cooling conditions, the crystalline form intermediate low and high surrounding form. Chassis decline at constant speed. While the upper part of the continuous injection of molten aluminum, so that the liquid between the solid aluminum and aluminum have a semi-solid region. Since aluminum liquid condensing to shrink, with mold wall with a layer of oil, aluminum clamps, with chassis decline, solidified aluminum mold exit, there is a circle in the lower part of the mold cooling water hole, cooling water prolapse can be sprayed onto the surface of aluminum ingots for secondary cooling, until the entire ingot casting lines last. Alloy compacts, Shengxin scrap metal recycling, recycling aluminum compacts offer by the Linyi City Shengxin scrap metal Limited. Alloy compacts, Shengxin scrap metal recycling, aluminum clamps offer is Linyi City Shengxin scrap metal recycling Ltd. (shengxin.tz1288.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Zhu new.