Suspension bridge type hot extrusion die for high-cantilever section bar

Abstract

The invention relates to a suspension bridge type hot extrusion die for a high-cantilever section bar. The suspension bridge type hot extrusion die comprises a die surface. The die surface is provided with a die hole, a discharge port, a large cantilever and a small cantilever. The die hole is communicated with the discharge port. The suspension bridge type hot extrusion die is characterized in that a suspension bridge protruding out of the die surface is arranged at the feed end of the large cantilever. The suspension bridge type hot extrusion die has the following advantages that the strength problem of the cantilever positions can be directly solved after the suspension bridge is additionally arranged at the feed end, so that deformation or collapse of the cantilevers does not need to be worried; due to the fact that a traditional opening splicing mode or skin tearing mode is not used, the burr problem is completely solved.

Description

technical field [0001] The invention relates to a hot extrusion die for aluminum profiles, in particular to a suspension bridge type hot extrusion die for high cantilever profiles. Background technique [0002] As aluminum profile hot extrusion products become more and more mature in the industry, the application of products becomes more and more extensive. For some special fields, more and more large cantilever molds will be used. For some molds with a tongue ratio below 5 times, we can Use dummy core molds to solve it, and for molds with a tongue ratio of 5 times or even 10 times or more, we can only use split-mouth or tear-off molds to solve the problem, but no matter whether it is a split-mouth or peel-off type, it will There are burrs in the extruded product at the extrusion or tearing area, which is not conducive to the surface finish. However, in fact, as the requirements become higher and higher, more and more customers return products because of surface burrs. If i...

AI Technical Summary

Problems solved by technology

[0002] As aluminum profile hot extrusion products become more and more mature in the industry, the application of products becomes more and more extensive. For some special fields, more and more large cantilever molds will be used. For some molds with a tongue ratio below 5 times, we can Use dummy core molds to solve it, and for molds with a tongue ratio of 5 times or even 10 times or more, we can only use split-mouth or tear-off molds to solve the problem, but no matter whether it is a split-mouth or peel-off type, it will There are burrs in the extruded product at the extrusion or tearing, which is not conducive to the surface finish. However, in fact, as the requirements become higher and higher, more and more customers return products because of surface burrs.

If it is directly made into a flat mold, the life of the mold will be greatly reduced, and some molds cannot even make a product of one kilogram, so this type of mold has always been a shortcoming in the industry

Images