What are the classifications of plastic extrusion molds?

When an extrusion die that accomplishes a uniform extrusion of a parison in one extrusion die machine is dismantled and replaced by an extrusion die machine, the original balance of the overrun channel is gotten rid of, there is no uniform feeding, and the parison is deformed. Even in the middle of two extrusion mold machines with the same specification model, the parison will be deformed.

Extrusion mold manufacturer

Plastic pvc profile extrusion rate is the extrusion mold (including die shell and shaping die shell) design program is very key to the main parameters. For die shell, along with the extrusion rate increase, the solute shear rate will increase, the total volume flow Q will increase, die shell loss P will increase.

An increase in shear rate will also change the viscoelasticity of the solute, obviously, the separation will result in a high degree of Raschel mobility; ductile conditions such as solute channeling and die-shell surge will also increase, and if a certain limit (critical shear rate) is exceeded, solute cracking will also occur.

When the extrusion molding rate is increased, the blank will be extruded uniformly at a lower extrusion molding rate, and the extrusion die with the proper cross-section appearance will be unbalanced, resulting in disproportionate discharges and deformation of the billet appearance.

The elements that jeopardize the extrusion die structure:

Manufacturing process on the overall design of the extrusion die is very harmful, to achieve the basic provisions of the same aluminum extrusion of the overflow channel, can be designed to program a lot of workable extrusion die structure form.

Because of the continuous improvement of metal processing technology, especially the common application of large finish wire cutting machine tool in line cutting, and its wear-resistant material flow production and processing technology and the development trend of fast and high precision cutting technology, prompting the production and processing of extrusion mold template and overrunner is more time-saving and labor-saving, and the quality of the production and processing is more guaranteed;

The overall design of the extrusion mold

Plastic pvc profile extrusion die design scheme from the effective aluminum profile cross-section gradually.

In the aluminum profile extrusion die design scheme, naturally in all extrusion die design scheme, first consider the aluminum profile in the extrusion molding network coordinates part.