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Wire hydrostatic extrusion device and method for extruding superfine grain wire using the device

An extrusion device, hydrostatic extrusion technology, applied in metal extrusion control equipment, metal extrusion, metal extrusion dies, etc., can solve problems such as sealing difficulties, achieve easy operation, quality assurance, and simple device structure Effect

Inactive Publication Date: 2008-10-08
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another object of the present invention is to provide a method for extruding ultrafine-grained wire rods using the wire rod hydrostatic extrusion device, which has a simple process and easy operation, and solves the problem of difficult sealing during the step-by-step extrusion process

Method used

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  • Wire hydrostatic extrusion device and method for extruding superfine grain wire using the device
  • Wire hydrostatic extrusion device and method for extruding superfine grain wire using the device
  • Wire hydrostatic extrusion device and method for extruding superfine grain wire using the device

Examples

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Embodiment

[0046] Prepare φ3mm nanocrystalline 2017 aluminum alloy wire.

[0047] Step 1. Prepare the extrusion die. Select the corresponding extrusion die 11 according to the wire to be extruded, and set the diameters D1, D2, and D3 of the three steps of the extrusion hole 17 to 10 mm, 6 mm, and 3 mm, respectively.

[0048] Step 2, preparing the aluminum alloy billet 10 . The industrial 2017 aluminum alloy conventional extrusion material was prepared into a cylindrical rod with a diameter of 30 mm, and the head was turned into a cone angle consistent with the angle of the extrusion die 11 to produce an aluminum alloy billet 10 .

[0049] Step 3, loading and assembling equipment. After the aluminum alloy billet 10 to be extruded is cleaned and lubricated, it is put into the cone angle of the extrusion die 11, and the extrusion die 11, the inner extrusion cylinder 4 and its "O" type sealing ring 17 and the beryllium copper sealing ring I 8 are connected in turn, and then hydraulic medi...

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Abstract

The invention discloses a linear material static liquid extruding device which comprises an external extruding cylinder; an internal extruding cylinder is sheathed in the external extruding cylinder; the empty cavity of the internal extruding cylinder is filled with a hydraulic medium; the upper end of the empty cavity of the internal extruding cylinder is connected with an extruding rod; a sealing device is arranged between the extruding rod and the internal extruding cylinder. The lower end surface of the empty cavity of the internal extruding cylinder is provided with a discharge channel along the axes direction; the inner side of the lower end surface of the empty cavity of the internal extruding cylinder is provided with an extruding mould; the sealing device is arranged between the extruding mould and the internal extruding cylinder; the extruding mould is provided with an leading-in hole and an extruding hole along the axes direction; the leading-in hole, the extruding hole and the discharge channel are arranged on the same axes and are permeable. The invention also discloses a method for preparing super-thining crystal grain linear materials by the extruding device; the whole device has the advantages of compact structure, simple technique and easy operation, which is suitable for static liquid extruding to prepare aluminum alloy linear materials with thin diameters and is applied to continuously extruding other light alloys or brittle alloy linear materials that are hard to be extruded.

Description

technical field [0001] The invention belongs to the technical field of plastic forming of non-ferrous metals, relates to a hydrostatic extruding device for wire rods, and also relates to a method for extruding ultra-fine-grained wire rods by using the extruding device. Background technique [0002] Among various engineering alloy materials, aluminum-based alloys are an important alloy second only to steel materials. Aluminum alloy is used in a large amount, has a wide range of applications, is easy to form and process, and has a small specific gravity, which is very suitable for the lightweight requirements of modern industrial development. On the basis of not changing the material composition and ratio, it is of great significance to adopt subsequent processing technology to improve the performance of the material. Grain refinement is an effective way to improve the toughness and strength of aluminum alloys. Ultrafine-grained (submicron and nanocrystalline) materials have...

Claims

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Application Information

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IPC IPC(8): B21C23/02B21C31/00B21C25/02B21C29/00B21C23/01
Inventor 张忠明郭学锋徐春杰
Owner XIAN UNIV OF TECH
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