What is mold?

The scientific classification of molds is of great technical and economic significance to the planned development of mold industry, the systematic research and development of mold production technology and the research and formulation of mold technical standards. The specialty of solid inkstone is more important than production, which is the basis of studying and formulating the technical standard system of mold.

There are many ways to classify molds. In the past, they were classified according to mold structure, such as single-process molds and composite molds. According to the object of use, such as automobile panel die and motor die; Classification according to the properties of processing materials, such as molds for metal products and molds for nonmetal products; According to the classification of mold manufacturing materials, such as cemented carbide molds; According to the process properties, such as drawing die, powder metallurgy die, forging die, etc. Some of these classification methods can not fully reflect the structure, forming process characteristics and use functions of various molds. Therefore, a comprehensive classification method based on the technological properties and users of molds is adopted, and molds are divided into ten categories, as shown in table 1, and can be divided into several subcategories or varieties according to mold structure, materials, use functions and mold manufacturing methods.

No: mold type, mold variety, molding process, properties and users.

1 Punching die (punching die) Punching die (punching with little or no waste, trimming, smooth punching, deep hole punching precision die, etc. ), bending die, drawing die, single-process die (blanking, bending, drawing, forming, etc. ), compound die and progressive die; Stamping forming of automobile panel die, combined die and motor silicon steel sheet die

② Plastic molding molds: compression mold, extrusion mold and injection mold (vertical, vertical and angular injection mold); Thermosetting plastic injection mold, extrusion molding mold (pipe, flat mold with film, etc. ), foam molding mold, low-tool foam injection mold, blow molding mold and other plastic products molding plus Huangyan process (thermosetting and thermoplastic molding compounds).

Die-casting dies for hot chamber die casting machine, vertical cold chamber die casting machine, Chen Leng chamber die casting machine, full vertical die casting machine, non-ferrous metal (zinc, aluminum, copper, magnesium alloy) die casting, ferrous metal and ferrous metal die casting die.

Forging die Large press forging die, screw press forging die, flat forging die, roll forging die, etc. Metal parts used for various fasteners such as cold heading die, extrusion die, wire drawing die and liquid forging die are formed by forging and extrusion.

Metal casting process for casting various metal parts with metal mold casting.

6 powder metallurgy mold forming mold:

Manual mold: solid one-way pressing and solid two-way pressing manual mold; Solid floating die

Motor dies: large-section solid floating dies, pole palm one-way dies, nested one-way and two-way dies and nested floating dies.

Plastic mold:

Manual dies: radial forming dies, full forming dies with external steps, forming dies with spherical parts, etc.

Motor mould: automatic forming mould for solid parts without steps, semi-automatic forming mould for sleeve pull rod, automatic forming mould for sleeve through, automatic forming mould for sleeve with outer steps and outer spherical sleeve, etc.

The powder product is pressed and shaped into a green body. The main die electro-machining equipment is used for copper-based and iron-based powder products; Mechanical parts, tool materials and products, easily heated parts, etc.

7 Glassware Mould Glassware molding process, such as blow-blow mould, pressure-blow mould, glassware mould, etc.

Rubber molding die Rubber products are pressed, extruded and injected. Rubber tire mold, O-ring rubber mold, etc.

9 ceramic mold molding metal mold is used for the molding process of various ceramic utensils and other products.

10 economic mold (simple mold) low melting point alloy molding mold, sheet mold, laminated mold, silicone rubber mold, epoxy resin mold, ceramic precision mold, laminated cavity plastic mold, rapid electroforming molding mold, etc. It is suitable for a variety of industrial products with high economic value.