CN201841173U

CN201841173U - Multi-hole extrusion die

Info

Publication number: CN201841173U
Application number: CN2010205628527U
Authority: CN
Inventors: 刘小宝; 南磊层
Original assignee: NONFEMET INTERNATIONAL XILIN INDUSTRY Ltd
Current assignee: NONFEMET INTERNATIONAL XILIN INDUSTRY Ltd
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2011-05-25
Anticipated expiration: 2020-10-14

Abstract

The utility model relates to a multi-hole extrusion die, which is used for producing aluminum alloy sectional material, wherein a reference working belt of die holes is zero, a full-circumference working belt of the die holes is 1.5-2.5mm, and the angles of the working belts of the die holes are within the range of -0.5 to -3 degrees. The multi-hole extrusion die greatly improves the production efficiency of the aluminum alloy sectional material and ensures that the die holes are not easy to have flow rate difference.

Description

A kind of porous extrusion die tool

Technical field

The utility model relates to extrusion die, especially for the porous extrusion die tool of producing aluminium alloy extrusions.

Background technology

Traditional porous extrusion die tool adopts just working and brings flow velocity and the shape of adjusting each nib discharging, be subject to the restriction of Mould Machining precision and extruding condition, extrusion speed can only reach 20～30 meters/minute, and go up machine production at every turn, current difference appears in each nib easily, the section bar wall thickness is thin more, current difference is easy to generate more, and mould is repaired also difficulty, and therefore domestic most of aluminum material factory seldom adopts this porous extrusion die tool, major part is all used the single hole mould instead and is produced on small-sized extruder, production efficiency also descends thereupon, on the other hand, because production efficiency is low, mould is used continually, makes the life-span of single hole mould shorten greatly empty die life than Duoing.

Summary of the invention

The purpose of this utility model provides a kind of porous high speed extrusion die that is used to produce aluminium alloy extrusions, and this mould not only can improve the production efficiency of aluminium alloy extrusions, and each nib is not prone to current difference.

For reaching above-mentioned purpose, the porous extrusion die tool that the utility model provides is used to produce aluminium alloy extrusions, and wherein, the benchmark job band of nib is zero, and complete all work zones of nib are 1.5～2.5mm, and nib work zone angle is-0.5～-3 degree.

A kind of more excellent scheme is: the benchmark job band of nib is zero, and complete all work zones of nib are 2mm, and nib work zone angle is-1.5 degree.

The nib number of above-mentioned porous extrusion die tool can be 2～8.

Extrusion speed during above-mentioned porous extrusion die tool operate as normal is 40～60 meters/minute.

Because adopt the design of negative work zone, negative angle comes the cutting die work zone, each nib benchmark job band is designed to zero, and this porous extrusion die tool has been obtained following outstanding technique effect:

1, eliminated of the influence of Mould Machining error to a great extent, thereby eliminated current difference substantially mould.

Resistance when 2, having reduced extrusion modling has improved extrusion speed greatly, can reach 40～60 meters/minute, is much higher than the extrusion speed of traditional porous mold.

3, on a mould, can design 2～8 nibs, improve the production efficiency of aluminium alloy extrusions greatly.

4, improve greatly die life, the 2-3 that the life-span of this porous mold is about single hole die life doubly more than.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model;

Fig. 2 is its face upwarding stereogram;

Fig. 3 is its vertical view;

Fig. 4 is its upward view;

Fig. 5 is the A-A cutaway view of Fig. 4;

Fig. 6 is the enlarged drawing of B portion among Fig. 5;

Fig. 7 is the vertical view of another embodiment of the utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

With reference to Fig. 1-6, originally the porous extrusion die tool 1 that is used to produce aluminium alloy extrusions comprises four nibs 11, the benchmark job band of nib 11 (being nib 11 porch and the vertical part in mould 1 upper surface) is zero, and complete all work zone d of nib 11 are 2mm, and nib work zone angle [alpha] is-1.5 degree.

This mould 1 is used in combination with mould deflector, die-cushion, and wherein, the mould deflector is used for metal with recipient and is divided into shallow bid metal with each nib similar shape, and die-cushion is used to strengthen mould strength, and mould deflector and die-cushion can adopt traditional scheme.

The normal extrusion speed of this mould 1 is 40～60 meters/minute.

With reference to Fig. 7, another embodiment porous extrusion die tool 2 comprises eight nibs 21, and the benchmark job band of nib 21 (being nib 21 porch and the vertical part in mould 2 upper surfaces) is zero, and complete all work zones of nib 21 are 2mm, and nib work zone angle is-1.5 degree.

The normal extrusion speed of this mould 2 is 40～60 meters/minute.

More than by specific embodiment the utility model is described in detail; but these should not be construed as the restriction to the utility model protection domain; those skilled in the art are according to description of the present utility model; can to the quantity of nib and shape change and modification is made in complete all work zones and work zone angle on the basis of the foregoing description, protection domain of the present utility model should be as the criterion with the content of claims.

Claims

1. a porous extrusion die tool is used to produce aluminium alloy extrusions, it is characterized in that: the benchmark job band of nib is zero, and complete all work zones of nib are 1.5～2.5mm, and nib work zone angle is-0.5～-3 degree.

2. porous extrusion die tool according to claim 1 is characterized in that: complete all work zones of nib are 2mm, and nib work zone angle is-1.5 degree.

3. porous extrusion die tool according to claim 1 is characterized in that: described mould comprises 2～8 nibs.

4. porous extrusion die tool according to claim 1 is characterized in that: the extrusion speed during described extrusion die operate as normal is 40～60 meters/minute.