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Adjustable mold employing reverse extrusion and draw forming for raw copper tube of mould, reverse extrusion and draw forming method thereof

A technology of reverse extrusion and crystallizer, applied in the direction of metal extrusion dies, wire drawing dies, etc., can solve the problems of waste, time-consuming and labor-intensive adjustment and replacement of dies, etc., achieve less production links, meet single-piece small-batch production, and reduce costs Reduced effect

Inactive Publication Date: 2008-02-13
大连冶金结晶器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two key problems in this method. Firstly, for copper pipes of different sizes, tire molds must be designed one by one, so that the types and quantities of molds are increasing. The adjustment and replacement of molds is time-consuming and laborious, resulting in a great waste

Method used

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  • Adjustable mold employing reverse extrusion and draw forming for raw copper tube of mould, reverse extrusion and draw forming method thereof
  • Adjustable mold employing reverse extrusion and draw forming for raw copper tube of mould, reverse extrusion and draw forming method thereof

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Embodiment Construction

[0019] As shown in Figures 1 to 4, an interchangeable mold and method for reverse extrusion and drawing of rough copper pipes, wherein the interchangeable mold includes an upper supporting plate, an upper punch body and a device mounted on the head of the bed The base on the workbench, the die sleeve and the material cushion are characterized in that the lower end of the upper punch body has a screw hole, which is threaded with the upper punch through a stud bolt; there is a die in the die sleeve, through the cone and the taper sleeve Flexible connection; there is a spiral groove on the outer surface of the die, and a discharge heating body is placed in the groove, and the heating element is connected to the external circuit through the through hole of the mold sleeve; the top of the mold sleeve has bolts to fix the stripping plate and the pressure plate on the mold sleeve top; the bottom of the pad is connected with the knockout rod mounted on the tailstock, and the top of the...

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Abstract

The invention discloses a replaceable mold which uses indirect extrusion and drawing to mold crystallizer blank copper pipe. Wherein, said replaceable mold comprises: an upper supporting board and a upper punch body mounted on the machine head; a chassis, a mould sheath, a compression ring, a compression plate, a discharge board, a material underlay and a material underlay ring mounted on the operation board. The invention is characterized in that: a screw is arranged at the lower end of upper punch body to be connected with the screw thread of upper punch pin via double-ended binding bolt; a cavity die is mounted inside the taper hole of mould sheath, while the circumference of said cavity die has spiral groove which contains electrical heating element and the heating element is connected to external circuit via the taper hole of mould sheath; the bottom of material underlay has a screw hole connected with material beating rod of tail block; and the top of upper punch body is connected with upper supporting board key. Said mold has better adjustable ability, which can realize the replacement between punch pin and cavity die, improve the final forging environment of blank copper pipe, and improve the producing efficiency and the rate of finished products, while it can apply the corporation for processing single multi-variety copper pipe.

Description

technical field [0001] The invention relates to metal extrusion, in particular to a die and a method for reverse extrusion and drawing forming of a blank copper tube for a continuous casting crystallizer. Background technique [0002] The production of crystallizer copper tubes is inseparable from rough copper tubes. Due to the fierce competition in the market and the single-piece and small-batch characteristics of mold copper tube production, reflected in the supply of rough raw materials, it has evolved into a situation of tight supply and higher prices day by day. In order to meet the needs of production, ensure the timely supply of raw materials, and reduce the cost of raw material procurement, manufacturers are forced to adopt self-made blanks and rough copper tubes to meet the market's single-piece and small-batch needs. Self-made rough copper tubes, the traditional process adopts the method of reverse extrusion and drawing. There are two key problems in this method....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C25/02B21C29/04B21C23/20B21C3/14B21C37/06
Inventor 郭建文黄广勇
Owner 大连冶金结晶器有限公司
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