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Production method and pipe-coiling device of non-ferrous metal coil pipes

A technology for non-ferrous metals and production methods, applied in metal processing equipment, metal wire drawing, straightening equipment, etc., can solve the problems of excessive ovality of pipes, easy sliding and bumping, excessive residual nitrogen, etc., and achieve uniform mechanical properties and sliding collision. Less damage and less deformation

Inactive Publication Date: 2015-05-06
朱建平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. Pipe deformation and sliding damage
[0009] The annealed pipe is very soft, and the non-ferrous metal coil is easily deformed during operation and winding, and it is easy to slip and bruise
This deformation will lead to excessive ovality of the pipe
The thinner the wall thickness, the greater the deformation, and the excessive ovality and sliding damage of the pipe will cause serious quality problems in the air-conditioning heat exchanger.
[0010] 2. Uneven wiring
The wiring of the pipe is not well controlled, and it is easy to cause quality problems such as uneven wiring and cross-layers
[0012] 3. Internal purging is difficult
The high-speed movement of the pipe brings great difficulties to the gasification and internal purging of the drawing oil in the pipe. Excessive heating and cooling speed will cause incomplete gasification, resulting in excessive residual nitrogen in the pipe
[0014] 4. Uneven mechanical properties of pipes
[0015] Due to the different bending degrees of the inner and outer coils of the pipe when the pipe is wound, it will cause uneven performance of the pipe and affect the use
[0016] 5. The appearance is easy to change color
[0017] The online annealed pipes are cooled by water and enter the horizontal wire winding machine for winding. The cooling water on the pipes must be fully dried, and appropriate anti-discoloration agents need to be added. Even so, in hot and humid weather, the surface of the pipes will It is difficult to dry completely, which will cause the surface of the pipe to turn black during the storage period and affect the use
[0018] The above problems have seriously affected the use of horizontal cable winding pipes

Method used

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  • Production method and pipe-coiling device of non-ferrous metal coil pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment one, such as Figure 1~4 as shown,

[0050] A method for producing a non-ferrous metal coiled tube, comprising the steps of:

[0051] The first step is to wind the hard metal pipe horizontally;

[0052] In the second step, the annealing treatment is performed on the coiled pipe after the horizontal cable is wound.

[0053] The annealing treatment can be, but is not limited to, annealing in an annealing furnace. To illustrate in detail, take a volumetric annealing furnace as an example, and the wound coil is directly annealed in the furnace.

[0054] The aforementioned hard metal pipes are relative to the soft pipes that have undergone online annealing in the background art. With this method, without online annealing treatment, the pipe material is directly wound with horizontal wires, and the coiled pipe after the horizontal wires is then annealed.

[0055] Because it is a hard pipe, its mechanical properties are greatly improved compared with soft pipes...

Embodiment 2

[0058] Embodiment two, such as Figure 1~4 said,

[0059] The difference between Embodiment 2 and Embodiment 1 lies in the first step. That is to add uncoiling, straightening, cleaning, flaw detection and drying in the first step. The hard metal pipe is uncoiled, straightened, cleaned, flaw detected, dried, and then horizontally wound.

Embodiment 3

[0060] Embodiment three, such as Figure 1~2 as shown,

[0061] Non-ferrous metal coil equipment, which includes: uncoiling equipment 1, winding machine 8, wherein:

[0062] Uncoiling equipment 1, which uncoils the hard pipe 2 to be processed;

[0063] The winding machine 8 is a horizontal wire winding machine, which winds the hard metal pipe to make the pipe into a horizontal wire coil 9;

[0064] After the pipe 2 passes through the uncoiling equipment 1, it enters the horizontal wire winding machine without online annealing, so as to realize the horizontal wire winding of the hard metal pipe.

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Abstract

The invention relates to a production method and a pipe-coiling device of non-ferrous metal coil pipes. The production method comprises following steps: step 1, rigid metal pipes are subjected to transverse arranging and winding; and step 2, coil pipes obtained via transverse arranging and winding are subjected to annealing processing. The pipe-coiling device comprises an un-coiling device (1), and a transverse arranging and winding device (8); and the tail end of the un-coiling device (1) is connected with the transverse arranging and winding device. The production method and the pipe-coiling device are capable of preventing or avoiding deformation and slide bumping of pipes.

Description

technical field [0001] The present invention relates to a method for producing non-ferrous metal coiled pipes. This method is suitable for the production of non-ferrous metal coils such as copper. [0002] The second invention relates to non-ferrous metal coil equipment. The device applies the method of invention 1 to produce non-ferrous metal coils such as copper. Background technique [0003] Under normal circumstances, coils of non-ferrous metal pipes, such as copper pipes and aluminum pipes, are wound and packaged by close-packed winding. In the past, air-conditioning heat exchanger manufacturers mainly used vertical uncoiling. Under the circumstances at that time, the closely packed and wound pipes matched the vertical uncoiling, so there was no problem in uncoiling. In recent years, horizontal uncoiling has become popular in air-conditioning heat exchanger manufacturers due to its simplicity, convenience and practicality, and traditional vertical uncoiling has been ...

Claims

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Application Information

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IPC IPC(8): B21C47/02B21C19/00
Inventor 朱建平
Owner 朱建平
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