What are molds used for? What does a mold do What is a mold used for

1.In industrial production, various molds and tools are used 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 a molded item, which is made up of various parts, and different molds are made up of different parts.

It mainly realizes the processing of the shape of the item through the change of the physical state of the molded material. Known"The mother of industry"The title.

2.Under the action of external force, the blank becomes a tool for workpieces of specific shapes and sizes. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, as well as the forming and processing of compression molding or injection molding of engineering plastics, rubber, ceramics and other products.

The die has a specific profile or cavity shape, and the application of a profile shape with a cutting edge allows the blank to be separated (punched) according to the shape of the contour line. The application of the shape of the inner cavity allows the blank to obtain the corresponding three-dimensional shape. The mold generally includes two parts: the moving mold and the fixed mold (or punch and concave mold), which can be divided or combined.

When separated, the workpiece is taken out, and when closed, the blank is injected into the mold cavity for forming. The mold is a precision tool, the shape is complex, bear the expansion force of the blank, the structural strength, stiffness, surface hardness, surface roughness and machining accuracy have high requirements, the development level of mold production is one of the important symbols of the level of machinery manufacturing.

According to the different materials molded: hardware molds, plastic molds, and their special molds.

1.Hardware molds are divided into: including stamping dies, (such as punching dies, bending dies, drawing dies, turning dies, shrinkage molds, undulating dies, bulging dies, shaping dies, etc.), forging dies (such as die forging dies, upsetting forging dies, etc.), extrusion dies, extrusion dies, die-casting dies, forging dies, etc.;

2.Non-metallic molds are divided into: plastic molds and inorganic non-metallic molds.

According to the different materials of the mold itself, the mold can be divided into: sand mold, metal mold, vacuum mold, paraffin mold and so on. Among them, with the rapid development of polymer plastics, plastic molds are closely related to people's lives.

Plastic molds can generally be divided into: injection molding molds, extrusion molding molds, gas-assisted molding molds and so on.

1. A mold is a tool used to make molded items.

2. Molds, 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. This kind of tool is composed of various parts, and it mainly realizes the processing of the shape of the object through the change of the physical state of the molded material.

3. In addition to the mold itself, the mold also needs the mold base, the mold base, the mold core to lead to the ejection device of the workpiece, etc., and these parts are generally made into a general type. It is known as the "mother of industry".