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Technique for extrusion pressing copper stephanoporate sectional material with follow-up composite needle

A combination of needle and hole technology, applied in metal extrusion forming tools, metal extrusion, manufacturing tools, etc.

Inactive Publication Date: 2008-06-11
上海飞驰铜铝材有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a technology and device for extruding copper porous profiles with follow-up combined needles to overcome the existing double-action extruders that can only produce single-hole copper profiles

Method used

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  • Technique for extrusion pressing copper stephanoporate sectional material with follow-up composite needle
  • Technique for extrusion pressing copper stephanoporate sectional material with follow-up composite needle
  • Technique for extrusion pressing copper stephanoporate sectional material with follow-up composite needle

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Embodiment Construction

[0016] The basic design idea of ​​the present invention is embodied in the following aspects.

[0017] One, the present invention has adopted follow-up combined needle.

[0018] The perforating needle undertakes two tasks in the production process of the extruder, one is to complete the perforation on the solid ingot (see Figure 3), and the other is to participate in the pipe forming as an internal mold during the extrusion process. When piercing a solid ingot, the perforating needle must bear a lot of pressure. The follow-up extrusion is used as the inner mold, and the perforating needle bears a certain tensile force. Therefore, the perforating needle itself must have a certain strength. The conventional material is hot die steel. If the two functions of the perforating needle are viewed separately, with a thinner perforating needle, the perforating function cannot be realized, but it is completely possible to bear a certain pulling force as the function of the inner mold. T...

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Abstract

The invention discloses a process that a copper section bar with multi holes is extruded by a servo-actuated combined needle and a device of the process. A conventional double-acting forward extruder is used to extrude the copper section bar with double holes, the servo-actuated combined needle is arranged on a support of a hole forming needle, a combined needle stand is connected with the support of the hole forming needle, the front end flat surface of the combined needle stand is provided with a T-shaped slot, two core rods with T-shaped heads are arranged in the T-shaped slot, the length of the combined needle is equal to the length of an original hole forming needle, a guiding hole whose diameter is 0.7mm bigger than the diameter of a core rod is opened on a position which is on an extruding pat and corresponded with the combined needle, and two holes whose bore diameters are 2mm bigger than the diameter of the core rod are pre-traversed on a copper blank ingot. The copper blank ingot and the extruding pat are propelled into an extruding cylinder through an extruding shaft, the support of the hole forming needle is propelled forwards, the servo-actuated combined needle is propelled forwards, and a double-core rod is traversed through the guiding hole of the extruding pat, entered into a hole of the copper blank ingot, and entered forwards a position which exceeds a sizing belt of an extruding die for10mm. The double-core rod and an outer die are formed together into a deformed space, the copper blank ingot is extruded by the extruding shaft to propel forwards, the servo-actuated combined needle is propelled forwards in servo-actuation, the copper blank ingot is passed through a space which is formed by the outer die and the double-core rod, and the section bar with the double holes is extruded out.

Description

[0001] The invention discloses a technique and a device for extruding a copper porous profile with a moving combined needle. Technical field [0002] The invention belongs to the field of metal processing. The invention relates to a process and equipment for extruding and deforming double-hole copper profiles, in particular to a process and device for extruding copper porous profiles with a follower combination needle. Background technique [0003] Metal copper has become one of the most widely used metals because of its good electrical conductivity, thermal conductivity, corrosion resistance, and ease of hot and cold pressure processing. It is widely used in the industry to manufacture various equipment that requires electrical conductivity, thermal conductivity, and corrosion resistance. In copper processing technology, the production of tubes, rods and wire blanks by extrusion method has become a main method of pressure processing. The extrusion processing of copper can b...

Claims

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Application Information

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IPC IPC(8): B21C23/08B21C25/00
Inventor 王晓邦杨章辉杨波沈嘉麟
Owner 上海飞驰铜铝材有限公司
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