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Preparation method of seamless steel tube

A technology for seamless steel pipes and tube blanks, which is applied in the field of seamless steel pipe processing, can solve the problems of equipment not being able to be used normally, unsatisfactory use, seamless steel pipe openings, etc., and achieve low cost, good mechanical properties, and simple preparation methods Effect

Inactive Publication Date: 2019-03-26
鑫盛泓达(徐州)电力科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production of seamless steel pipes, seams and cracks often occur in seamless steel pipes, which lead to the failure of normal use of the equipment and the inability to meet the use in harsh environments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing a seamless steel pipe, wherein the seamless steel pipe is composed of the following components in parts by weight: 30 parts of carbon, 15 parts of manganese, 5 parts of zinc, 5 parts of aluminum, 2 parts of phosphorus, 2 parts of titanium, tantalum 5 parts, 2 parts of magnesium, 2 parts of chromium, 1 part of nickel, 0.2 parts of copper, and the balance of iron.

[0021] Described seamless steel pipe comprises the following steps:

[0022] (1) taking raw materials according to the parts by weight of the above-mentioned required raw materials;

[0023] (2) Clean up the unnecessary sundries in the above-mentioned raw materials;

[0024] (3) smelting after mixing the raw materials evenly;

[0025] (4) Put the smelted solution into the pipe-making mold, and obtain the tube blank through smelting;

[0026] (5) Place the tube blank at 1200°C for 40 minutes;

[0027] (6) Subsequent thermal processing, then cooling, to obtain the seamless steel pipe; ...

Embodiment 2

[0031] A method for preparing a seamless steel pipe, wherein the seamless steel pipe is composed of the following components in parts by weight: 30 parts of carbon, 15 parts of manganese, 5 parts of zinc, 5 parts of aluminum, 2 parts of phosphorus, 2 parts of titanium, tantalum 5 parts, 2 parts of magnesium, 2 parts of chromium, 1 part of nickel, 0.2 parts of copper, and the balance of iron.

[0032] Described seamless steel pipe comprises the following steps:

[0033] (1) taking raw materials according to the parts by weight of the above-mentioned required raw materials;

[0034] (2) Clean up the unnecessary sundries in the above-mentioned raw materials;

[0035] (3) smelting after mixing the raw materials evenly;

[0036] (4) Put the smelted solution into the pipe-making mold, and obtain the tube blank through smelting;

[0037] (5) Place the tube blank at 1250°C for 50 minutes;

[0038] (6) Subsequent thermal processing, then cooling, to obtain the seamless steel pipe; ...

Embodiment 3

[0042] A method for preparing a seamless steel pipe, wherein the seamless steel pipe is composed of the following components in parts by weight: 40 parts of carbon, 22 parts of manganese, 10 parts of zinc, 10 parts of aluminum, 5 parts of phosphorus, 5 parts of titanium, tantalum 8 parts, magnesium 5 parts, chromium 5 parts, nickel 3 parts, copper 0.5 parts, iron balance.

[0043] Described seamless steel pipe comprises the following steps:

[0044] (1) taking raw materials according to the parts by weight of the above-mentioned required raw materials;

[0045] (2) Clean up the unnecessary sundries in the above-mentioned raw materials;

[0046] (3) smelting after mixing the raw materials evenly;

[0047] (4) Put the smelted solution into the pipe-making mold, and obtain the tube blank through smelting;

[0048] (5) Place the tube blank at 1300°C for 40 minutes;

[0049] (6) Subsequent thermal processing, then cooling, to obtain the seamless steel pipe;

[0050] (7) The se...

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PUM

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Abstract

The invention discloses a preparation method of a seamless steel tube. The seamless steel tube is prepared from, by weight, 30-40 parts of carbon, 15-22 parts of manganese, 5-10 parts of zinc, 5-10 parts of aluminum, 2-5 parts of phosphorus, 2-5 parts of titanium, 5-8 parts of tantalum, 2-5 parts of magnesium, 2-5 parts of chromium, 1-3 parts of nickel, 0.2-0.5 part of copper and the balance iron.The preparation method of the seamless steel tube has the beneficial effects that the cost is low, the preparation method is simple, the mechanical property is good, the seamless steel tube can not be cracked, the economic benefit is good, and the preparation method is suitable for large-scale industrialized production.

Description

technical field [0001] The invention relates to the field of seamless steel pipe processing, in particular to a preparation method of seamless steel pipes. Background technique [0002] Seamless steel pipe is a round, square, and rectangular steel with a hollow section and no seams around it. It is an economical cross-section steel and is widely used in the manufacture of structural parts and mechanical parts. In the production of seamless steel pipes, seams and cracks often occur in seamless steel pipes, which makes the equipment unable to work normally and cannot be used in harsh environments. Contents of the invention [0003] In view of the above-mentioned problems in the prior art, the object of the present invention is to provide a method for preparing seamless steel pipes. [0004] The technical solution adopted in the present invention is: a preparation method of seamless steel pipe, wherein the seamless steel pipe is composed of the following components in parts ...

Claims

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Application Information

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IPC IPC(8): C22C33/04C22C38/58C22C38/06C22C38/50C22C38/48C22C38/42C21D8/10
CPCC22C33/04C21D8/105C22C38/002C22C38/06C22C38/42C22C38/48C22C38/50C22C38/58
Inventor 孙井君
Owner 鑫盛泓达(徐州)电力科技发展有限公司