Production process and application of stainless steel seamless tube

A production process and technology of seamless pipes, applied in the field of stainless steel, can solve the problems of poor stability of seamless pipes and cumbersome production processes, etc.

Pending Publication Date: 2021-05-18
上海久砾不锈钢管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the defects of cumbersome stainless steel seamless pipe production process and poor stability of the produced seamless pipe in the prior art by providing a production process of stainless steel seamless pipe, and the obtained stainless steel seamless pipe has high precision and high temperature resistance wide, broad application prospects

Method used

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  • Production process and application of stainless steel seamless tube
  • Production process and application of stainless steel seamless tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061]This embodiment provides a production process of stainless steel seamless tubes, and the specific steps include:

[0062]S1. Select seamless pipe blank, pickling, resulting in stainless steel seamless pipe;

[0063]S2. The outer circulation of stainless steel seamless pipe is performed;

[0064]S3. Cold rolling of stainless steel seamless pipe after foreign circular polishing;

[0065]S4. Stermers of stainless steel seamless pipe after cold rolling;

[0066]S5. It is vacuum brightened and irradiated with a stainless steel seamless pipe after degreasing.

[0067]S6. Stainless steel seamless pipe after vacuum brightening is straightened, cutting up;

[0068]S7. For straightening, the stainless steel seamless tube coarse material is performed in the inner circulation, resulting in a stainless steel seamless pipe finished product;

[0069]S8. Package the stainless steel seamless pipe finished product and warehouse.

[0070]The material of the seamless pipe billet is 316L, purchased from Shanghai Baigu Indus...

Embodiment 2

[0077]This embodiment provides a production process of stainless steel seamless tubes, and the specific steps include:

[0078]S1. Select seamless pipe blank, pickling, resulting in stainless steel seamless pipe;

[0079]S2. For stainless steel seamless pipe coarse material

[0080]S3. Cold rolling of stainless steel seamless pipe after foreign circular polishing;

[0081]S4. Stermers of stainless steel seamless pipe after cold rolling;

[0082]S5. It is vacuum brightened and irradiated with a stainless steel seamless pipe after degreasing.

[0083]S6. Stainless steel seamless pipe after vacuum brightening is straightened, cutting up;

[0084]S7. For straightening, the stainless steel seamless tube coarse material is performed in the inner circulation, resulting in a stainless steel seamless pipe finished product;

[0085]S8. Package the stainless steel seamless pipe finished product and warehouse.

[0086]The material of the seamless tube billet is 321, purchased from Shanghai Jongong Metal Products Co., Ltd...

Embodiment 3

[0093]This embodiment provides a production process of stainless steel seamless tubes, and the specific steps include:

[0094]S1. Select seamless pipe blank, pickling, resulting in stainless steel seamless pipe;

[0095]S2. For stainless steel seamless pipe coarse material

[0096]S3. Cold rolling of stainless steel seamless pipe after foreign circular polishing;

[0097]S4. Stermers of stainless steel seamless pipe after cold rolling;

[0098]S5. It is vacuum brightened and irradiated with a stainless steel seamless pipe after degreasing.

[0099]S6. Stainless steel seamless pipe after vacuum brightening is straightened, cutting up;

[0100]S7. For straightening, the stainless steel seamless tube coarse material is performed in the inner circulation, resulting in a stainless steel seamless pipe finished product;

[0101]S8. Package the stainless steel seamless pipe finished product and warehouse.

[0102]The material of the seamless pipe billet is an Inconel 600, purchased from Shanghai Kai Metallurgical Pr...

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Abstract

The invention relates to the field of stainless steel, in particular to a production process and application of a stainless steel seamless tube. The production process of the stainless steel seamless tube is characterized by comprising the following specific steps that S1, outer circle polishing is carried out; S2, cold rolling is carried out; S3, degreasing is carried out; S4, vacuum bright annealing is carried out; S5, straightening and pipe cutting are carried out; S6, inner circle polishing is carried out; and S7, packaging and warehousing are carried out. The production process of the stainless steel seamless tube has the following advantages that (1), the process is simple and easy to implement and high in practicability; (2), the produced stainless steel seamless tube is smooth and attractive, and is not prone to bulging and cracking; and (3), the produced stainless steel seamless tube is resistant to high temperature, humidity and heat and high in stability.

Description

Technical field[0001]The present invention relates to the field of stainless steel, and more particularly to a production process of stainless steel seamless tubes and their applications.Background technique[0002]Stainless steel is an important part of special steel, and its output accounts for 15-30% of special steel. Since the stainless steel has good corrosion resistance, high temperature resistance, low temperature and good mechanical properties and unique decorative, it is widely used in aerospace, energy, chemical, ocean development, transportation and other fields, and become industrial development is indispensable. Important metal materials. With the improvement of national economy and people's living standards, stainless steel products occupy an increasingly important position in economic development.[0003]The seamless steel pipe is perforated by the entire round steel, and there is no steel pipe on the surface, referred to as a seamless steel pipe. According to the product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/06B23P15/00C23G1/08C21D1/26C21D1/74C21D9/08
CPCB21C37/06B23P15/00C23G1/086C21D1/26C21D1/74C21D9/08Y02P10/20
Inventor 孔令琦
Owner 上海久砾不锈钢管有限公司
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