CN103170520A

CN103170520A - Ingot skin removing and extruding die of aluminum section material extruding machine

Info

Publication number: CN103170520A
Application number: CN2013101333816A
Authority: CN
Inventors: 石伟东
Original assignee: KUNSHAN ZHONGXIN PRECISION DIE STANDARD PARTS CO Ltd
Current assignee: KUNSHAN ZHONGXIN PRECISION DIE STANDARD PARTS CO Ltd
Priority date: 2013-04-17
Filing date: 2013-04-17
Publication date: 2013-06-26

Abstract

The invention relates to an ingot skin removing and extruding die of an aluminum section material extruding machine. During the process of aluminum profile extrusion, if the surface skin of an aluminum ingot enters a die hole to flow in section material too early, shrinkage under the skin is easily caused, and additionally the surface skin of the aluminum ingot is usually polluted by oil or other matters during the storage manner, so that the welding line strength of the section material and integral quality of section material extruding finished products also can be influenced since the surface skin of the aluminum ingot enters the die hole to flow in section material too early. The ingot skin removing and extruding die of the aluminum section material extruding machine comprises an outer die (1), a middle die (2) and an inner die (3), wherein the middle die (2) is positioned in the middle; the outer die (1) and the inner die (3) are respectively fixed on both sides of the middle die; the inner cavity of the inner die (3) is stepped; and an annular knife blade (3) with an outward blade body is arranged on a cavity wall. The ingot skin removing and extruding die is simple in structure and low in cost, effectively solves the shrinkage under the skin and other problems caused since the surface skin of an argentalium ingot enters the die hole to flow in section material too early, is widely suitable for extrusion of various aluminum section materials, and is particularly suitable for extrusion of brightness mirror polish aluminum section material.

Description

A kind of aluminium section bar extruder removes the ingot skin extrusion die

Technical field

The present invention relates to a kind of aluminium section bar extruder and remove the ingot skin extrusion die.

Background technology

In the aluminium section bar extrusion, if the aluminium ingot epidermis enters too early nib and flows in section bar, can cause that coarse grain, impurity, oxide skin etc. are in the accumulation in dead band, after piling up completely, the dead band just begins to flow into section bar, the subcutaneous contracting tail of so easy generation, the aluminium ingot epidermis is often polluted by greasy dirt or other forms in storage process in addition, and entering too early nib inflow section bar also can affect the sealing wire intensity of section bar and the total quality of section bar extrusion finished product.

Summary of the invention

The technical problem to be solved in the present invention is the defects that how to overcome prior art, provides a kind of aluminium section bar extruder to remove the ingot skin extrusion die.

For solving the problems of the technologies described above, this aluminium section bar extruder goes the ingot skin extrusion die to comprise external mold (1), middle mould (2) and internal mold (3), in the middle of wherein middle mould (2) is positioned at, external mold (1) and internal mold (3) are separately fixed at middle mould both sides, internal mold (3) inner chamber is trapezoidal, and the chamber wall is provided with the outside cutting ring sheet (4) of blade.

As optimization, described cutting ring sheet (4) has two, and two cutting ring sheets (4) are apart from 30mm.

A kind of aluminium section bar extruder of the present invention goes the ingot skin extrusion die simple in structure, with low cost, it has solved effectively that silver-colored aluminium ingot epidermis enters too early that nib flows in section bar and the subcutaneous contracting tail and the other problems that produce, be widely used in extruding of all kinds of aluminium section bars, especially be fit to extruding of brightness mirror finish aluminium alloy extrusions.

Description of drawings

Go the ingot skin extrusion die to be described further below in conjunction with accompanying drawing to a kind of aluminium section bar extruder of the present invention:

Fig. 1 is the main view plane structural representation that this aluminium section bar extruder removes the ingot skin extrusion die;

Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.

Mould, 3-internal mold, 4-cutting ring sheet in 1-external mold, 2-.

The specific embodiment

As shown in Figure 1, this aluminium section bar extruder goes the ingot skin extrusion die to comprise external mold 1, middle mould 2 and internal mold 3, and in the middle of mould 2 was positioned in wherein, external mold 1 and internal mold 3 were separately fixed at middle mould both sides, and internal mold 3 inner chambers are trapezoidal, and the chamber wall is provided with the outside cutting ring sheet 4 of blade.

As optimization, described cutting ring sheet 4 has two, and two cutting ring sheets 4 are apart from 30mm.

The present invention includes but be not limited to above-mentioned embodiment, any product that meets the description of these claims is within all falling into protection scope of the present invention.

Claims

1. an aluminium section bar extruder removes the ingot skin extrusion die, it is characterized in that: comprise external mold (1), middle mould (2) and internal mold (3), in the middle of wherein middle mould (2) is positioned at, external mold (1) and internal mold (3) are separately fixed at middle mould both sides, internal mold (3) inner chamber is trapezoidal, and the chamber wall is provided with the outside cutting ring sheet (4) of blade.

2. aluminium section bar extruder according to claim 1 removes the ingot skin extrusion die, it is characterized in that: described cutting ring sheet (4) has two, and two cutting ring sheets (4) are apart from 30mm.