Mould, Various molds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die-casting or forging molding, smelting, stamping and other methods. In short, a mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. Known as the "Mother of Industry".

A tool for making a blank into a specific shape and size under the action of an external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting and compression molding or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or cavity shape. Using the contour shape with a cutting edge, the blank can be separated (punched) according to the contour shape. The shape of the cavity allows the blank to obtain the corresponding three-dimensional shape. The mold generally includes two parts, a movable mold and a fixed mold (or punch and mold), which can be separated and closed. The workpiece is taken out when separated, and the blank is injected into the mold cavity to form when closed. The mold is a precision tool with a complex shape and can withstand the expansion force of the blank. It has high requirements for structural strength, rigidity, surface hardness, surface roughness and machining accuracy. The development level of mold production is one of the important signs of the level of mechanical manufacturing.

In addition to the mold itself, mold production also requires a mold base, a mold frame, and a mold core to cause the ejection device of the part. These parts are usually made of universal type. Mold companies need to become bigger and stronger, and determine product positioning and market positioning based on market demand, technology, capital, and equipment. These practices are especially worthy of learning and reference by small mold companies, and focus on gradually forming their own technical and product advantages. Therefore, Chinese mold companies must actively learn from the experience of these advanced foreign companies in order to develop better in the future.