比较常见的砂轮产品有陶瓷砂轮、树脂切割砂轮、树脂金刚石砂轮、金刚石锯片等，其加工成型多采用粉末成型工艺，山东众友设计生产了一款砂轮粉末成型液压机，三梁四柱式结构，可以用于各种规格的砂轮制品的加工生产。设备采用插装阀集成系统，利用高压液压油实现静压成型。
根据砂轮产品的材质、规格、密度、重量等，山东众友可以为客户定制315吨、400吨、500吨、630吨、800吨、1000吨、1500吨、2000吨、2500吨、3000吨、3500吨等各种不同吨位的砂轮粉末成型液压机，通过更换模具和压力的方式，可生产多种不同形状和尺寸的砂轮坯体。
The powder forming process of grinding wheel is mainly divided into two kinds, hot pressing method and cold pressing method. Hot pressing molding is made by mixing metal powder with diamond and adding grinding wheel powder to forming hydraulic press mold by hot pressing. This process requires a small hydraulic press, and the grinding wheel has good precision, high strength and long service life. Hot pressing molding is a method of mixing metal powder with diamond and adding cold pressing to the forming mold, using a grinding wheel powder forming hydraulic press to form, and then sintered, this process is relatively simple, long mold life, high efficiency of mass production cycle, low production cost.
Grinding wheel powder forming process
The abrasive and the binder are put into the mold of the grinding wheel powder forming hydraulic press. After the rotary table is evenly distributed, the piston of the main working cylinder pushes the movable beam down. When the pressure reaches a predetermined pressure (constant pressure pressing) or a predetermined stroke (constant range pressing), the pressure is held for a period of time, then the pressure is relieved and returned, and the ejector cylinder pushes out the finished product.
The hydraulic control of the grinding wheel powder forming hydraulic press designed and produced by Shandong Zhongyou adopts a cartridge valve integrated system, which reduces leakage points, has reliable operation and long service life, can realize two forming processes of constant pressure and constant process, has the function of pressure holding delay, can adjust the working pressure stroke within the specified range, adopts button centralized control, and can realize three operation modes of manual, semi-automatic and automatic. Equipped with appropriate auxiliary equipment and heating device, can press ceramic grinding wheel, resin cutting grinding wheel, resin diamond grinding wheel and diamond saw blade, etc. The use of plastic filling elastic mold, fixed weight feeding, fixed mold molding process. Mold rotation, scraper micro-lifting material, can be in the same mold forming different thickness grinding wheel.