Definition of mold

Release time :

2023-03-14

So what is a mold? Under the action of external force, the blank becomes a tool with a specific shape and size. 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 inner cavity shape, and the application of a contour shape with a cutting edge can separate the blank according to the contour line shape (blanking). Applying the shape of the inner cavity can make the blank obtain the corresponding three-dimensional shape. The mold generally includes two parts, the movable mold and the fixed mold (or punch and die), which can be separated or combined. Take out the parts when they are separated, and inject the blank into the cavity of the mold to form when they are closed. The mold is a precision tool with a complex shape and bears the bulging force of the billet. It has high requirements for structural strength, stiffness, surface hardness, surface roughness and machining accuracy. The development level of mold production is one of the important symbols of the level of mechanical manufacturing.

Today we will introduce the definition of mold from three aspects: concept, type and composition.

Concept

Type

There are many types of molds, which can be divided into: ①Molds for processing metals according to the processing objects and processing technology. ②Processing non-metallic and powder metallurgy molds. Including plastic molds (such as injection molds, compression molds and extrusion molds), rubber molds and powder metallurgy molds. According to the structural characteristics, the mold can be divided into a planar blanking mold and a cavity mold with space. Molds are generally single pieces and produced in small batches.

Constitution

In addition to the mold itself, it also needs a mold base, a mold base, a guide device, and a part ejection device, etc., and these parts are generally made into a universal type. Mold companies need to be bigger and more refined, and they must determine product positioning and market positioning based on market demand, technology, capital, equipment and other conditions. These practices are especially worth learning and learning from small mold companies, and concentrate their efforts to gradually form their own technical and product advantages. Therefore, mold companies must actively strive to learn from the experience of these advanced companies for better development in the future.

The definition of the mold has been explained to everyone, and the next issue will introduce the plastic mold.We welcome more people to pay attention to our company, ZHUHAI BAOLI FOAM SPRAY PUMP CO.,LTD.