Extrusion processing method and extrusion processing device

A technology of extrusion processing and extrusion rod, which is applied in the field of manufacturing raw material tubes for photosensitive drum bases, and can solve problems such as poor appearance of extrusion parts, poor air entrapment, and poor appearance.

Active Publication Date: 2014-10-15
RESONAC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This poor air entrapment is not only a problem of poor appearance and surface roughness of the extruded product, but also when plastic working such as drawing and / or bending is performed in the next step, it will be as follows Problem: Deteriorating the appearance of plastically processed products or increasing the surface roughness
[0005] In addition, when the drawing process is performed in the next step, the air entrapment defect is stretched in the drawing direction by the drawing process, and as a result, the following defects occur: poor appearance and poor surface roughness The range becomes larger
In particular, in the case where the drawn member is used for the raw material tube for the photosensitive drum base, since the surface roughness defect is stretched in the axial direction of the raw material tube, it occurs on the printed image that the The problem with long linear defects

Method used

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  • Extrusion processing method and extrusion processing device
  • Extrusion processing method and extrusion processing device
  • Extrusion processing method and extrusion processing device

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Embodiment Construction

[0042] Next, an embodiment of the present invention will be described below with reference to the drawings.

[0043] Figure 1~3 It is a figure for demonstrating the extrusion processing method and extrusion processing apparatus concerning one embodiment of this invention. exist figure 1 In , reference numeral 10 denotes an extrusion processing device according to an embodiment of the present invention. Specifically, the extrusion processing device 10 is a direct extrusion processing device, and is a device for manufacturing a metal extrusion product as the extrusion product 8 . The material of the extruded material 8 is metal, specifically, aluminum, for example. This extruded member 8 is a hollow extruded member (for example: a pipe) used for a raw material tube for a photosensitive drum base, an OA member, a building material, an exterior material, etc., and has a hollow portion continuously extending in the extruding direction. extrusions. In this embodiment, the ext...

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Abstract

In an extrusion molding method, a discard 7 is pressed in the thickness direction with a stem 2 after releasing the restraint of the external peripheral surface of the discard 7 by the container 1 or while releasing the restraint to thereby reduce the thickness of the discard 7, and then the discard 7 is cut off with a shearing blade 4.

Description

technical field [0001] The present invention relates to an extrusion processing method including a step of cutting off a discard of a billet, an extrusion processing apparatus used in the extrusion processing method, and a manufacturing method of a raw material tube for a photosensitive drum base. [0002] In addition, in this specification, unless otherwise indicated, the term "aluminum" is used to include both pure aluminum and aluminum alloys. In addition, "upstream" and "downstream" mean upstream and downstream in the extrusion direction, respectively. Background technique [0003] Extruded parts are widely used as raw material tubes for photosensitive drum substrates, parts for OA equipment, building materials, exterior materials, etc. In recent years, the quality requirements for the surface properties of extrusions have become stricter. Among them, the quality requirements for the appearance and surface roughness of the extrusion become particularly strict. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C35/04
CPCG03G5/102G03G5/10G03G2215/00957B21C35/04
Inventor 百百阳一金子传二郎
Owner RESONAC CORP
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