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Manufacturing method and manufacturing equipment for seamless tube

A technology for manufacturing equipment and manufacturing methods, which is applied in the field of seamless pipe manufacturing and its manufacturing equipment, can solve the problems of high energy consumption in the process, low yield of finished products, high production cost, etc., and achieve less processing steps, high yield of finished products, and method simple effect

Inactive Publication Date: 2014-02-05
江松伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The seamless pipes manufactured by deformation processing and machining first need to melt the metal raw materials into ingots, then forge the ingots into rods, and then perform deformation processing into seamless pipe blanks. This process consumes more energy and energy, and the yield is low. high production cost

Method used

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  • Manufacturing method and manufacturing equipment for seamless tube
  • Manufacturing method and manufacturing equipment for seamless tube
  • Manufacturing method and manufacturing equipment for seamless tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] like figure 1 As shown, a seamless pipe manufacturing equipment implementing the above-mentioned manufacturing method includes a crystallizer 1, the crystallizer 1 includes a shell 2 and a core 3, the core 2 is arranged at the inner center of the crystallizer 1, and the shell 2 The lower part is provided with a base 5 .

[0023] Wherein, the core body 3 is set as a solid structure, and the electrode blank 4 with a circular ring around the core body 3 is melted to form a molten pool.

[0024] The structural form of this embodiment is mainly used for producing large-sized seamless pipes.

Embodiment 2

[0026] like figure 2 As shown, a seamless pipe manufacturing equipment implementing the above-mentioned manufacturing method includes a crystallizer 1, the crystallizer 1 includes a shell 2 and a core 3, the core 2 is arranged at the inner center of the crystallizer 1, and the shell 2 The lower part is provided with a base 5 .

[0027] Among them, the core body 3 is set as a T-shaped structure, the lower part of the T-shaped structure is a columnar core 6, the upper part is a partition 7, and the partition 7 is provided with an overflow hole 8, and a tube blank is formed between the columnar core 6 and the shell 2. Zone 9 , above the barrier 7 forms a melting zone 10 .

[0028] After the electrode blank 4 is melted in the melting zone 10, it flows into the tube blank forming zone 9 below through the overflow hole 8, and the material liquid starts to solidify in the tube blank forming zone 9, and finally forms a seamless tube blank. In this embodiment, the shape of the tube ...

Embodiment 3

[0030] like image 3 As shown, a seamless pipe manufacturing equipment implementing the above-mentioned manufacturing method includes a crystallizer 1, the crystallizer 1 includes a shell 2 and a core 3, the core 2 is arranged at the inner center of the crystallizer 1, and the shell 2 The lower part is provided with a base 5 .

[0031] Wherein, the core body 3 is set as a hollow structure with a cooling unit in the inner cavity. In practical application, the cooling unit can adopt various forms. In this embodiment, a cooling liquid is used for cooling, and the cooling liquid can be water.

[0032] The hollow structure includes a shell 11 and a core liquid outlet channel 12 arranged inside it. The bottom of the shell 11 is provided with a core liquid inlet 13 through which the cooling liquid enters the shell 11, from The upper end of the core liquid outlet channel 12 enters and is discharged from the lower end of the core body liquid outlet channel 12 , and the cooling liquid ...

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PUM

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Abstract

The invention discloses a manufacturing method and manufacturing equipment for a seamless tube. Particularly, a crystallizer is adopted for casting the seamless tube, a core body is arranged inside the crystallizer, after electrode blank is melted, a molten pool is formed around the core body, and is filled in the space between the crystallizer and the core body, with temperature reduction of the molten pool, material liquid starts to solidify and then is taken off from the crystallizer after temperature reduction to a certain temperature degree, so as to be convenient for forming the tube blank of the seamless tube, and after finish machining to the tube blank of the seamless tube, the seamless tube is formed. The manufacturing method and the manufacturing equipment, provided by the invention, are used for casting the seamless tubes, the method is simple, the processing procedures are less, the raw materials are directly cast into the seamless tubes, the yield is high, and the production cost is lowered greatly, large-aperture seamless tubes can be produced with lower cost, and seamless tubes which cannot be produced at present can be produced.

Description

technical field [0001] The invention relates to a method for manufacturing a seamless pipe and its manufacturing equipment. Background technique [0002] The current method of making seamless pipes generally adopts deformation processing: rolling, forging, extrusion, machining, and deep hole drilling. The seamless pipes manufactured by deformation processing and machining first need to melt the metal raw materials into ingots, then forge the ingots into rods, and then perform deformation processing into seamless pipe billets. This process consumes more energy and energy, and the yield is low. Production costs are high. Contents of the invention [0003] Aiming at the problems existing in the prior art, the object of the present invention is to provide a method for manufacturing seamless pipes, which uses a special crystallizer to cast seamless pipes to reduce processing steps and production costs. Another object of the present invention is to The invention provides a man...

Claims

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Application Information

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IPC IPC(8): B22D25/02
Inventor 江松伟
Owner 江松伟