Sand box in the EPC is very important part, his main role is carrying sand and foam models, and form the most reasonable place negative pressure in the negative pressure casting in the cast full cast me good shape, sand container supply, no defects. With the continuous development of EPC technology and equipment, EPC sand box design is actually constantly upgrading, ventilation from the bottom to the side of the ventilation early, and then surrounded by breathable, and finally the current five-sided ventilation, or even six-sided ventilation , more advanced, more reasonable, sand box design automatic line before the entire automatic production line design, Heze sand box, the first response on the line by the production of casting a comprehensive analysis of the casting process, on the basis of decision flask inner frame size and form, from the preliminary design technology staff pattern sand box offers equipment designers, as a variety of hosts, auxiliary design basis. Then, depending on the host device designers, auxiliary to the flask, and further to improve the design of the sand box, sand box manufacturers, made sand box reference design. Craft workers finally casting process according to the requirements of the design changes, stereotypes. Usually only one per automatic line specifications sand box, in addition to meet the technical requirements of various castings, the sand box shape, size should meet the requirements of various devices. In automatic lines, sand box to play sports for non-contact switch signaling role, while, in order to shape position, Bonded accurate location positioning, sand box processing industry must have strict requirements. Heze sand box, Dragon Holdings, sand box production provided by the Industrial Development Co., Ltd. Shandong dragon. Heze sand box, Dragon Holdings, sand box production in 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.