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Processing technology of section bar with internal micropores

A technology of microporous profiles and profiles, applied in metal processing equipment, manufacturing tools, feeding devices, etc., can solve problems such as long and deep micropores that are difficult to form, and achieve the effect of simple preparation methods

Inactive Publication Date: 2019-01-22
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method actually belongs to a special processing technology, which also includes wire cutting, electric discharge machining, etc. Due to the limitation of precision, it is also difficult to form small long and deep micro-holes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A method for processing a titanium alloy profile with inner micropores, the method comprises: using a continuous composite extrusion method of a composite extrusion die, inserting a glass fiber-nickel wire composite body with the shape and size of the required micropores into a titanium alloy The position of the micro-holes in the alloy profile matrix needs to be processed, and the composite profile is formed; the composite profile is divided into required lengths, and the titanium alloy profile embedded in the glass fiber-nickel wire composite is heated, and the heating temperature is controlled to be equal to the softening point of the glass fiber However, it is significantly lower than the melting point of titanium alloy. The glass fiber is softened and separated by heating, so that the nickel wire is removed from the titanium alloy profile, and then high-pressure liquid is used to punch holes to obtain a titanium alloy profile with internal micropores; among them, the...

Embodiment 2

[0059] A method for processing a magnesium alloy profile with inner micropores, the method comprising: using a continuous compound extrusion method of a compound extrusion die, inserting aluminum wires that are consistent with the shape and size of the required micropores into the matrix of the magnesium alloy profile. The position of the micro-holes is processed to form the composite profile; the composite profile is divided into required lengths, the aluminum profile embedded with the magnesium wire is immersed in a hydrofluoric acid solution to remove the aluminum wire from the magnesium alloy profile, and then high-pressure gas is used to punch holes , to obtain a magnesium alloy profile with inner micropores; wherein, the diameter of the cross section of the aluminum wire is 1 mm.

Embodiment 3

[0061] A method for processing a magnesium alloy profile with inner micropores, the method comprising: using a continuous compound extrusion method of a compound extrusion die, inserting aluminum wires that are consistent with the shape and size of the required micropores into the matrix of the magnesium alloy profile. The position of the micro-holes is processed to form the composite profile; the composite profile is divided into required lengths, and the aluminum profile embedded with the magnesium wire is immersed in the caustic soda solution, so as to remove the aluminum wire from the magnesium alloy profile, and then the high-pressure liquid is used for punching, A magnesium alloy profile with inner micropores was obtained; wherein, the diameter of the cross section of the aluminum wire was 1.5 mm.

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Abstract

The invention provides a processing technology of a section bar with internal micropores. According to the processing technology, continuous composite extruding is adopted for embedding of a continuous wire rod with a size consists to that of the needed micropores into the positions of a section bar matrix for micropore processing; the section bar containing the continuous wire rod is subjected toextrusion, and is sawed into the section bar with a needed length; special physical chemical technology is adopted, the wire rod in the section bar is removed without changing the section bar matrix,so that forming of the micropores at specific positions with specific size and shape in the section bar is realized. The preparation method is simple; no large expensive precision equipment is needed; and industrialized application prospect is promising.

Description

technical field [0001] The invention belongs to the technical field of microporous processing, and in particular relates to a processing technology of a profiled material with inner microporous. Background technique [0002] At present, various parts with microholes have been widely used in aerospace, vehicle machinery, optoelectronic instruments, etc., while the methods for processing microholes in long profiles are limited. [0003] The Chinese patent (CN 104785811A) discloses a micro-hole processing method, which uses a drill to perform double-sided drilling, so as to solve the problems of broken knife, hole deviation and serious hole plugging in drilling with a micro-needle fixture, and at the same time It can produce drilling in batches, reduce production costs, improve production efficiency, and improve the quality of processed parts. However, it is still a traditional processing method. In fact, the use of turning, milling, drilling, etc. is limited by tools, making ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/04B21D28/24
CPCB21C23/04B21D28/243B21C35/023B21C25/02B21D43/003
Inventor 张存生刘明甫赵国群陈良马新武
Owner SHANDONG UNIV