Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for twisting a hollow metal tube

a hollow metal tube and tube technology, applied in the field of tube twisting, can solve the problems of inconvenient operation of holding and turning the metal, and the conventional method is relatively complicated to implement, and achieve the effect of simple and easy to implemen

Inactive Publication Date: 2006-05-18
CHUNG MIN JU
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a simple and easy method for twisting a hollow metal tube. This method involves filling a section of the tube with a solid reinforcing member and then twisting the ends of the tube relative to each other. The technical effect of this method is to provide a more efficient and effective way to twist hollow metal tubes, overcoming previous disadvantages of the prior art.

Problems solved by technology

The pressure adjusting device 2 is required to keep the, pressure of the support fluid 3 above a predetermined value, which is troublesome and which is inconvenient for the operation of holding and turning the metal tube 1.
Therefore, the conventional method is relatively complicated to implement.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for twisting a hollow metal tube
  • Method for twisting a hollow metal tube
  • Method for twisting a hollow metal tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Before the present invention is described in greater detail, it should be noted that like elements are denoted by the same reference disclosure.

[0023] Referring to FIG. 4, the first preferred embodiment of the method for twisting a hollow metal tube according to this invention includes the following steps:

[0024] A) Filling:

[0025] Referring to FIGS. 5 and 6, a hollow metal tube 10 and a solid reinforcing member 20 are prepared. The hollow metal tube 10 has opposite first and second end sections 11, 12 and a predetermined section 13 between the first and second end sections 11, 12 and extending along an axial direction (x). The first and second end sections 11, 12 define first and second holes 111, 121, respectively. The predetermined section 13 defines an intermediate channel 131 communicated with the first and second holes 111, 121 and having a length (L1) along the axial direction (x). The hollow metal tube 10 used in the preferred embodiment has a Vickers-hardness (Hv) b...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Vickers-hardnessaaaaaaaaaa
plasticaaaaaaaaaa
Login to View More

Abstract

A method for twisting a hollow metal tube includes the steps of (a) filling a predetermined section of the hollow metal tube between two opposite end sections of the hollow metal tube with a solid reinforcing member, and (b) holding and turning the two opposite end sections of the hollow metal tube relative to each other so as to twist the predetermined section of the hollow metal tube.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to a method for twisting a tube, more particularly to a method for twisting a hollow metal tube which is simple and easy to implement. [0003] 2. Description of the Related Art [0004] Referring to FIGS. 1, 2 and 3, a conventional method for twisting a hollow metal tube includes the steps of a) preparing a hollow metal tube 1; b) installing a pressure adjusting device 2 (i.e., a fluid controlling valve) at an open end of the metal tube 1; c) filling a support fluid 3 into the metal tube 1 through the pressure adjusting device 2, and keeping the pressure of the support fluid 3 above a predetermined value; d) holding and turning predetermined end portions of the metal tube 1 relative to each other so as to twist the metal tube 2 to form the surface of the metal tube 2 with a twisted structure 101; and e) releasing the support fluid 3 through the pressure adjusting device 2. [0005] Although the afor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): B21D9/15
CPCB21D9/15B21D11/14
Inventor CHUNG, MIN-JU
Owner CHUNG MIN JU