Straightening method of micro metal tube

A metal tube and fine technology, applied in the field of metal tube processing, can solve the problems of insufficient tube length, limited plasticity at room temperature, brittle tube and other problems, and achieve the effect of stable process, ingenious design and strong operability

Active Publication Date: 2013-04-10
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wire straightening machine uses the principle of hyperbolic straightening. Through the rapid rotation of the eccentric wheel inside the straightening machine, the deflection of the pipe to be straightened is forced to change according to the hyperbolic shape, so that it is gradually straightened. This straightening method is suitable for stainless steel pipes, copper pipes, etc. Tubes and other materials with excellent plasticity are very effective, but for fine metal tubes with poor plasticity such as magnesium alloy, aluminum alloy, etc. The plasticity at room temperature is limited, or the length of the pipe is less than the minimum feed length of the rubber pipe straightening machine, which may easily cause the pipe to be brittle during the straightening process or the straightening cannot be completed

Method used

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  • Straightening method of micro metal tube
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  • Straightening method of micro metal tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The straightening method of the present embodiment fine metal tube comprises the following steps:

[0026] Step 1, a metal wire 3 coated with organic oil is inserted into an AZ31 magnesium alloy fine metal tube 2, the outer diameter of the fine metal tube 2 is 6mm, the wall thickness is 0.5mm, and the straightness is 100mm / m; the metal wire 3 is an iron wire; the diameter of the metal wire 3 is 4.5mm, and the length of the metal wire 3 is greater than the total length of the fine metal tube 2;

[0027] Step 2: Put the fine metal tube 2 with the metal wire 3 in the step 1 into the rubber drum 1, and then install the rubber drum 1 with the metal wire 3 and the fine metal tube 2 on the wire straightening machine (Shanghai Kindly On the JZ-1-6 type wire straightening machine produced by Medical Instrument Co., Ltd.), the wire straightening machine is turned on to make the rubber roller 1 together with the counterweight 4 arranged on the rubber roller 1 and the counterweight...

Embodiment 2

[0030] The straightening method of the present embodiment fine metal tube comprises the following steps:

[0031] Step 1. Thread a metal wire 3 coated with butter into three 3A21 aluminum alloy fine metal tubes 2 connected in series. The outer diameter of each fine metal tube 2 is 4mm, and the wall thickness is 0.3mm. , the straightness is 500mm / m; the metal wire 3 is a copper wire; the diameter of the metal wire 3 is 3mm, and the length of the metal wire 3 is greater than the total length of the fine metal tube 2;

[0032] Step 2: Put the fine metal tube 2 with the metal wire 3 in the step 1 into the rubber drum 1, and then install the rubber drum 1 with the metal wire 3 and the fine metal tube 2 on the wire straightening machine (Shanghai Kindly On the JZ-1-6 type wire straightening machine produced by Medical Instrument Co., Ltd.), the wire straightening machine is turned on to make the rubber roller 1 together with the counterweight 4 arranged on the rubber roller 1 and th...

Embodiment 3

[0035] The straightening method of the present embodiment fine metal tube comprises the following steps:

[0036] Step 1. A metal wire 3 coated with organic oil is inserted into five TA16 titanium alloy fine metal tubes 2 connected in series. The outer diameter of each fine metal tube 2 is 2 mm, and the wall thickness is 0.1 mm. , the straightness is 300mm / m; the metal wire 3 is a copper wire; the diameter of the metal wire 3 is 1.3mm, and the length of the metal wire 3 is greater than the total length of the fine metal tube 2;

[0037]Step 2: Put the fine metal tube 2 with the metal wire 3 in the step 1 into the rubber drum 1, and then install the rubber drum 1 with the metal wire 3 and the fine metal tube 2 on the wire straightening machine (Shanghai Kindly On the JZ-1-6 type wire straightening machine produced by Medical Instrument Co., Ltd.), the wire straightening machine is turned on to make the rubber roller 1 together with the counterweight 4 arranged on the rubber rol...

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Abstract

The invention provides a straightening method of a micro metal tube. The straightening method comprises the following steps of: 1, penetrating a metal wire into the micro metal tube; 2, arranging the micro metal tube penetrated with the metal wire on a wire straightening machine for straightening; and 3, taking the straightened micro metal tube down from the metal wire, and cleaning and drying the micro metal tube to obtain the micro metal tube with the straightness not more than 5mm / m. According to the invention, the straightening method is skillful in design, stable in process and strong in operability; the straightening principle of hyperbola straightening is utilized fully, and the conventional wire straightening machine is adopted to provide a straightening deflection hyperbola for the micro metal tube, so that the micro metal tube is forced to be bent according to the deflection hyperbola and is finally straightened; and the straightening method can be widely applied to straightening of various micro metal tubes and particularly can be used for straightening the micro metal tubes which are poor in plasticity and difficult to deform.

Description

technical field [0001] The invention belongs to the technical field of metal pipe processing, and in particular relates to a method for straightening fine metal pipes. Background technique [0002] Straightening is a necessary process in the production process of metal pipe products. The straightening of pipes is of great significance to subsequent processing, handling and storage. Some pipes cannot be processed without straightening. Generally speaking, large-scale pipes (over 10mm in outer diameter) on the market are straightened by a multi-roller rigid straightening machine. Invented micro-metal tube refers to the metal tube with an outer diameter of 1mm ~ 6mm) through the wire straightening machine to complete the straightening. The wire straightening machine uses the principle of hyperbolic straightening. Through the rapid rotation of the eccentric wheel inside the straightening machine, the deflection of the pipe to be straightened is forced to change according to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/00
Inventor 皇甫强于振涛张亚峰余森袁思波刘春潮麻西群
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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