1. Select the general principles and design of the flask generally speaking, casting sand box design selection and design of parts, production program and production conditions. Flask during the selection and design, sand box manufacturers, should pay attention to the following principles: 1) should first meet the production requirements of the casting process, should have the shape, location, combined type, handling and other functional structures. 2) sand box should be standardized, serialization, universal. 3) Under have sufficient strength, rigidity, ease of use conditions, sand box sales, try to make the sand box structure is simple and lightweight. 4) Depending on the production equipment, production conditions, and other parts of its own characteristics, a reasonable choice in the form of structural walls of the box, box tape, vent and the like. 5) sand box to ensure that the necessary precision. 6) should be selected durable, economical source of a wide range of materials. Manufactured sand casting sand box with framed, sand box specifications, generally made of metal, to enclose the sand, Zibo sand box, so that the mold after tamping to maintain a certain shape, and ... generally divided into the sand box (also known as cap box) and the lower flask (also called base box). Sand is generally manufactured in upper and lower case, respectively, sometimes also with three or more sand box manufacturing. Zibo sand box, Dragon Holdings, sand box model provided by the Industrial Development Co., Ltd. Shandong dragon. Zibo sand box, Dragon Holdings, sand box model is Shandong dragon Development Co., Ltd. (www.julongshiye.com/) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page obtain the latest information, contact: Mr. Wang.