Mold for profiles with high surface requirements and using method thereof

Abstract

The invention discloses a sectional material mold with high surface requirements. The sectional material mold comprises a mold body and feeding grooves formed in the mold body. The mold body is further provided with at least one molding cavity communicating with the feeding grooves, the included angle alpha between the side face of each feeding groove and the front end face of the mold body is larger than 90 degrees, and the bottom face of each feeding groove is in the shape with the high middle and the low periphery. The invention further discloses a using method of the sectional material mold with the high surface requirements. The method comprises the steps that 1, a spigot of the mold body and an extruder are assembled together; 2, the mold is fixed and accurately positioned through positioning pins; 3, raw materials are placed in the feeding grooves; and 4, the raw materials are continuously extruded and molded from the molding cavities under the extrusion effect of the extruder. Due to the design, the problem that raw material skin defect tissue flows into an extruded product during extrusion is solved, the extruded sectional material surface quality is improved, the ratio of rejection caused after oxidization is lowered, the workpiece yield is improved, and the cost of a single product is reduced.

Description

technical field [0001] The invention relates to an extrusion die, in particular to an extrusion die for aluminum alloy. Background technique [0002] Extrusion die is a kind of forming die, which is named because its discharge method is extrusion. In the development process of existing electronic consumer products, it is often encountered that the post-extrusion profile has poor quality after oxidation in the subsequent oxidation process. The reason for the poor quality is mainly due to the inflow of the cast rod epidermis during the extrusion process. to extruded profiles. Referring to relevant information, most mold designs adopt the "guide + surface" design mode. This design adds a deflector plate between the mold working belt and the extruded casting rod, which fails to slow down the flow of the casting rod skin into the backflow plate, so The quality of extruded profiles cannot be effectively improved, and the defective rate cannot be effectively reduced. Conventiona...

AI Technical Summary

Problems solved by technology

Referring to relevant information, most mold designs adopt the "guide + surface" design mode. This design adds a deflector plate between the mold working belt and the extruded casting rod, which fails to slow down the flow of the casting rod skin into the backflow plate, so Failed to effectively improve the quality of extrusion profiles, and could not effectively reduce the defective rate

Conventional mold design cannot effectively control the skin inflow of raw material cast rods, and the proportion of product oxidation defects cannot be effectively controlled, and such defects can only be found after oxidation, resulting in the failure of the previous process and high processing costs, which increase the processing cost of a single product

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