Wood-plastic moulds are moulds used to make all kinds of wood-plastic products. In modern industrial production, the use of mold molding is a more general method, and the manufacture of wood-plastic products is no exception. According to the current process characteristics, the comprehensive requirements for wood molds for molds are: Firstly, it can produce high-quality wood-plastic products that can meet the needs of use in terms of appearance, dimensional accuracy and physical properties; the requirements from the perspective of mold use are: The high efficiency, automation, easy operation and easy maintenance of the production; from the perspective of mold manufacturing, the mold structure is reasonable, easy to manufacture, low cost, and can be accepted by the majority of users. In the wood-plastic products and industrial wood-plastic applications we see every day, wood-plastic molds can be divided into the following categories according to the production process of the products:
1. Press-forming molds: We are familiar with automotive interior panels, ship bulkheads, vehicle cabin panels, etc., which are manufactured using press molds.
2, injection molding mold: public venues, home appliances, children's toys are molded by injection mold products.
3, hollow blow molding mold: such as trays, packaging boxes and other products, is the use of hollow blow molding mold.
4, extrusion molding mold: flooring, profiles, doors and windows, plates, sheets and other products are formed by extrusion die. Such products account for more than 60% of domestic wood-plastic products.
As a new type of composite material, wood-plastic materials are usually processed by blending natural plant fiber materials such as straw, rice husk, wood flour and hemp fiber with different polymer substrates, so extrusion molding is processed in wood-plastic materials. It has an important position in production.
Extrusion wood-plastic extrusion die design: Using modern CaE/CaD design software, in the ratio of different natural fiber materials and different polymer substrates, we can simulate the full molding condition of the products we want in the actual production process. . With the deepening of the research on the principle of wood-plastic processing technology, the analog design has gradually approached the actual working conditions. The mold design is gradually developed from the empirical design stage to the theoretical calculation design direction. This is especially true in the design of wood-plastic extrusion dies, which greatly increases the yield and quality of wood-plastic extruded products. At the same time, due to the difference in polymer substrates used in wood-plastic materials and the diversity of natural materials, wood-plastic mold design has increased several times more difficulty than other material extrusion molds.
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