The basic elements of the general flask, should also have the following characteristics: 1) sand wall boxes with higher stiffness and strength, sand box sales, to withstand the pressure higher than the pressure of the molding machine, and keep the sand box size and accuracy . 2) sand wall boxes with a certain precision slide, positioning holes, stopper, dowels, etc., in order to complete the sand box shape, mechanized transport, positioning, flip-fitting, casting, shakeout and other functions . 3) does not have a box with sand box, easy to automate modeling and shakeout. 4) the inside walls of sand boxes made more concave certain specifications to ensure the sandbox sand does not fall off during shipping, flips process, sand box size, does not shift. 5) The positioning accuracy of the flask should ensure the dimensional accuracy of the casting. The basic principles of casting sand box sand box ① design specifications as standardization, serialization, universal, in order to reduce the number of sand box, sand box Anqiu, reduce production costs, ease of manufacturing and management. ② sand box structure, hanging shafts, rings and fastening means have sufficient strength and rigidity and durability. ③ meet the technological requirements and ensure the safety of the premise, sand box structure should be simple and lightweight. ④ flask positioning means and with the choice of tolerance, should ensure the dimensional accuracy of the casting requirements. ⑤ sand box wall, want to bring the structures in favor of strong sand, and with the sand there is sufficient adhesion so that sand in flip close box during lifting off sand or less prone to collapse box, easy to rise in the pouring box, and To facilitate casting off the sand. ⑥ medium and large sand boxes wall vent should be located so that exhaust gas generated when pouring. Anqiu Julong Industrial sand box _ _ sand box manufacturers to provide the Industrial Development Co., Ltd. Shandong dragon. Anqiu Julong Industrial sand box _ _ sand box manufacturer in Shandong dragon Development Co., Ltd. (www.julongshiye.com/) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Mr. Wang.