ABS Products

The overall structure of the extrusion die is differentiated according to the type of profile. The extrusion die for hollow aluminum profiles is designed with a separation cone, a separation support frame and a core structure to produce the main cavity of the hollow aluminum profile; open aluminum profiles (including semi-closed aluminum profiles) do not have a main cavity, so the extrusion die for open aluminum profiles is generally devoid of a separation cone, a separation support frame and a core pre-fabricated component. The complexity of the extrusion mold flow path is mainly due to the complexity of the profile cross section. The more the number of functional blocks and cavities on the profile cross-section, the more complicated the cross-section looks, and the more complicated the extrusion mold's overrun channel will be. Uniform distribution of the total area of the cross-section of the profile is conducive to the symmetrical separation of the material flow in the material pipe, it is very easy to complete the symmetrical extrusion.

First, the cross-section of the profile look

The overall structure of the extrusion die according to the type of profile difference, hollow aluminum extrusion die bixu design separation cone, separation support frame and core structure to produce hollow aluminum profile of the main cavity;

Open aluminum profiles (including semi-closed aluminum profiles) do not have a main cavity, so extrusion dies for open aluminum profiles generally do not have separation cones, separation supports and core preforms.

The complexity of the extrusion mold flow path is mainly due to the complexity of the profile cross section. The more the number of functional blocks and cavities on the profile cross-section, the more complicated the cross-section looks, and the more complicated the extrusion mold's overrun channel will be. Uniform distribution of the total area of the cross-section of the profile is conducive to the symmetrical separation of the material flow in the material pipe, it is very easy to complete the symmetrical extrusion.

Second, extrusion mold plastic recipe

Mold plastic recipe is not only the decision of the viscosity of the plastic solute, and also jeopardize the ductility of the plastic solute effect, thus jeopardizing the overall design of the key elements of the extrusion mold.

For PVC plastics: yizhi or huanjie PVC plastic thermal dissolution of the whole process, is the PVC-U production and processing of the first to consider the key challenges. Adding halogen-free flame retardant, or using lubricant and processing aids to change the rheological condition of the solute to get lower production and processing temperature is the countermeasures that can be adopted at the level of molding plastic secret formula; and reduce the length of the material pipe over the runner, gaishan runner structure, reduce the time between the material flow in the material pipe to avoid running material and hanging material condition is the countermeasures that can be adopted at the level of the overall design of the material pipe. For certain regulations, these two levels of countermeasures can complement each other.

As a matter of fact, PVC-U molding compound is a dry-mixed granular material with more than ten components, and there are some uncertainties in the whole process of purchasing and misfeeding. Therefore, the uneven feeding conditions caused by the profile blanks look of the change, within a certain range, is the standard tolerance of plastic profiles allowed; thus, according to a variety of processing methods (such as adjusting the temperature and rate, etc.), to ease or gaishan.