CN102321853B - Stainless steel pipe used in aircrafts and ultra-low temperature systems of aircrafts, and manufacturing method thereof - Google Patents
Stainless steel pipe used in aircrafts and ultra-low temperature systems of aircrafts, and manufacturing method thereof Download PDFInfo
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Abstract
The invention discloses a stainless steel pipe used in aircrafts and ultra-low temperature systems of the aircrafts. The stainless steel pipe is manufactured from a rolled stainless steel pipe billet which comprises components of, by mass: less than 0.04% of C, 8.00% to 10.00% of Mn, less than 1.00% of Si, less than 0.03%of P, 19.00% to 21.00% of Cr, 5.5% to 7.5% of Ni, less than 0.75% of Mo, less than 0.75% of Co, 0.15% to 0.40% of N, and balance of Fe. The stainless steel pipe manufactured with the provided technical scheme has tensile strength of 979 to 1117 MPa, yield strength of more than 827 MPa, and extensibility of 20%. The austenite of the steel is stable. Even the steel is processed from 60% of cold working, a non-magnetic character is maintained. The steel has good toughness and corrosion resistance. Under room temperature, the strength of the steel is two times those of common austenitic stainless steel 304, 321, and 316. The steel has good technical property, corrosion resistance, and high temperature oxidation resistance. Under an ultra-low temperature of -253 DEG C, the steel has strong strength, strong toughness, and good high-temperature property. The steel is widely applied in high temperature oxidation resistant components and non-magnetic components in aviation and low-temperature systems. The invention also discloses a manufacturing method of the stainless steel pipe.
Description
Technical field
The present invention relates to stainless steel tube technical field, more particularly to a kind of airborne vehicle and its ultra-low temperature systems stainless steel tube
And preparation method.
Background technology
As economic develops rapidly, airborne vehicle and its ultra-low temperature systems are frequently necessary to use stainless steel tube, and current
The steel of nickel 5 for using in a large number can only be used under conditions of -156 DEG C, it is impossible to meet some ultra-low temperature systems, the such as storage of natural gas
Use under the conditions of -196 DEG C of system, use under even lower temperature conditionss.
The content of the invention
One of the technical problem to be solved is that offer is a kind of can be had in the case of -253 DEG C of ultralow temperature
There is very high intensity and toughness, while the also stainless steel tube with good high-temperature behavior.
The two of the technical problem to be solved are the preparation method for providing above-mentioned stainless steel tube.
The technical problem to be solved can be achieved through the following technical solutions：
A kind of airborne vehicle and its ultra-low temperature systems stainless steel tube, it adopts the rustless steel containing following mass percent composition
Billet production is formed：C：Less than 0.04%, Mn：8.00%～10.00%, Si：Less than 1.00%, P：Less than 0.03%, Cr：
19.00%～21.00%, Ni：5.5%～7.5%Mo：Less than 0.75%, Co：Less than 075%, N：0.15%～0.40%,
Remainder is ferrum.
The preparation method of above-mentioned airborne vehicle and its ultra-low temperature systems stainless steel tube in turn includes the following steps：
A, the round steel of the 60mm of the Φ containing mentioned component～Φ 75mm is carried out into hot piercing, shape by Mannesmann piercing mill
Into the pipe of Φ 65mm × 5.5mm or Φ 75mm × 6.5mm, then pipe is carried out into pickling 20 minutes, water under high pressure is used after discharging
Rifle rinses rear reconditioning well and obtains pipe A, and wherein acid solution is：25wt% nitric acid, 5～8% Fluohydric acid .s, remaining is water；
B, the pipe B that pipe A is rolled into into 42 × 2.5mm of Φ using two-roll cold rolling mill, are deoiled after the completion of rolling, are gone
Pipe B is sent in annealing furnace after oil, is heated to 1066 DEG C～1211 DEG C, solution treatment is carried out when coming out of the stove；Solution treatment is laggard
Take out after row aligning, reconditioning, pickling 20 minutes and obtain pipe C after rinsing well；Wherein acid solution is：25wt% nitric acid, 5～8% hydrogen
Fluoric acid, remaining is water；
C, the pipe D that pipe C is rolled into into 25 × 1.5mm of Φ using two-roll cold rolling mill, are deoiled after the completion of rolling, are gone
Pipe D is sent in annealing furnace after oil, is heated to 1066 DEG C～1211 DEG C, solution treatment is carried out when coming out of the stove；Beat after solution treatment
Head pickling 20 minutes, taking-up is rinsed rear ultrasonic examination well and obtains qualified pipe E, into next road production process；Wherein acid
Liquid is：25wt% nitric acid, 5～8% Fluohydric acid .s, remaining is water；
D, the pipe F that pipe E cold-drawns are obtained 22 × 1.2mm of Φ using even drawing machine, then using empty sinking obtain Φ 16 ×
The pipe G of 1.2mm, after pipe G deoils, sends in annealing furnace, is heated to 1066 DEG C～1211 DEG C, carries out at solid solution when coming out of the stove
Reason；Aligned after solution treatment, pickling is taken out after rinsing well after 20 minutes and polishes to obtain pipe H；
E, the pipe I that pipe H is rolled into Φ 14 × 0.65 using three-high mill, after pipe I deoils, send into annealing furnace
It is interior, 1066 DEG C～1211 DEG C are heated to, solution treatment is carried out when coming out of the stove；Aligned after solution treatment, pickling 20 minutes, taken out
Rinse rear ultrasonic examination well and obtain pipe J；
F, the pipe M that pipe J is rolled into 12.7 × 0.51mm of Φ using three-high mill, pipe M Jing are deoiled, aligned, put down
Finished product after head, ultrasonic examination, eddy current inspection.
The solution treatment：That is steel, in fire door originally Water spray, reaches solid solution purpose after high-temperature area.
In 979～1117Mpa, yield strength is more than the tensile strength of the stainless steel tube prepared using above-mentioned technical proposal
827Mpa, elongation percentage is 20%.The austenite of its steel is highly stable, even across 60% cold working, remains to keep without magnetic
Feature, it has good toughness and decay resistance, and intensity during room temperature is general austenitic stainless steel 304,321,316
Twice, the steel has good manufacturability, corrosion resistance and oxidation-resistance property, and the situation of the ultralow temperature at -253 DEG C
Under, with very high intensity and toughness, while also having good high-temperature behavior, this steel grade is widely used in aviation and low temperature system
The resistance to high temperature oxidation part and the part without magnetic of system.
Specific embodiment
Below, the present invention will be described in more detail.In this manual, " % " of the composition of steel is represented, as long as not having
There is special instruction, be exactly " quality % "
The present invention is applied to airborne vehicle and its ultra-low temperature systems stainless steel tube, and it is adopted containing following mass percent composition
Stainless pipe billet rolling form：C：Less than 0.04%, Mn：8.00%～10.00%, Si：Less than 1.00%, P：0.03% with
Under, Cr：19.00%～21.00%, Ni：5.5%～7.5%Mo：Less than 0.75%, Co：Less than 075%, N：0.15%～
0.40%, remainder is ferrum.
The preparation method of above-mentioned airborne vehicle and its ultra-low temperature systems stainless steel tube in turn includes the following steps：
A, the round steel of the 60mm of the Φ containing mentioned component～Φ 75mm is carried out into hot piercing, shape by Mannesmann piercing mill
Into the pipe of Φ 65mm × 5.5mm or Φ 75mm × 6.5mm, then pipe is carried out into pickling 20 minutes, water under high pressure is used after discharging
Rifle rinses rear reconditioning well and obtains pipe A, and wherein acid solution is：25wt% nitric acid, 5～8% Fluohydric acid .s, remaining is water；
B, the pipe B that pipe A is rolled into into 42 × 2.5mm of Φ using two-roll cold rolling mill, are deoiled after the completion of rolling, are gone
Pipe B is sent in annealing furnace after oil, is heated to 1066 DEG C～1211 DEG C, solution treatment is carried out when coming out of the stove；Solution treatment is laggard
Take out after row aligning, reconditioning, pickling 20 minutes and obtain pipe C after rinsing well；Wherein acid solution is：25wt% nitric acid, 5～8% hydrogen
Fluoric acid, remaining is water；
C, the pipe D that pipe C is rolled into into 25 × 1.5mm of Φ using two-roll cold rolling mill, are deoiled after the completion of rolling, are gone
Pipe D is sent in annealing furnace after oil, is heated to 1066 DEG C～1211 DEG C, solution treatment is carried out when coming out of the stove；Beat after solution treatment
Head pickling 20 minutes, taking-up is rinsed rear ultrasonic examination well and obtains qualified pipe E, into next road production process；Wherein acid
Liquid is：25wt% nitric acid, 5～8% Fluohydric acid .s, remaining is water；
D, the pipe F that pipe E cold-drawns are obtained 22 × 1.2mm of Φ using even drawing machine, then using empty sinking obtain Φ 16 ×
The pipe G of 1.2mm, after pipe G deoils, sends in annealing furnace, is heated to 1066 DEG C～1211 DEG C, carries out at solid solution when coming out of the stove
Reason；Aligned after solution treatment, pickling is taken out after rinsing well after 20 minutes and polishes to obtain pipe H；
E, the pipe I that pipe H is rolled into Φ 14 × 0.65 using three-high mill, after pipe I deoils, send into annealing furnace
It is interior, 1066 DEG C～1211 DEG C are heated to, solution treatment is carried out when coming out of the stove；Aligned after solution treatment, pickling 20 minutes, taken out
Rinse rear ultrasonic examination well and obtain pipe J；
F, the pipe M that pipe J is rolled into 12.7 × 0.51mm of Φ using three-high mill, pipe M Jing are deoiled, aligned, put down
Finished product after head, ultrasonic examination, eddy current inspection.
The solution treatment：That is steel, in fire door originally Water spray, reaches solid solution purpose after high-temperature area.
The ultimate principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description this
The principle of invention, on the premise of without departing from this utility model spirit and scope, the present invention also has various changes and modifications, this
A little changes and improvements are both fallen within scope of the claimed invention.The claimed scope of the invention is by appending claims
And its equivalent thereof.
Claims (1)
1. a kind of airborne vehicle and its ultra-low temperature systems stainless steel tube, it adopts the stainless steel tube containing following mass percent composition
Base rolling is formed：C：Less than 0.04%, Mn：8.00%～10.00%, Si：Less than 1.00%, P：Less than 0.03%, Cr：
19.00%～21.00%, Ni：5.5%～7.5%, Mo：Less than 0.75%, Co：Less than 0.75%, N：0.15%～
0.40%, remainder is ferrum；
Described airborne vehicle and its preparation method of ultra-low temperature systems stainless steel tube, in turn include the following steps：
A, the round steel of the 60mm of the Φ containing mentioned component～Φ 75mm is carried out into hot piercing by Mannesmann piercing mill, form Φ
The pipe of 65mm × 5.5mm or Φ 75mm × 6.5mm, then carries out pickling 20 minutes by pipe, is rushed with giant after discharging
Reconditioning after wash clean obtains pipe A, and wherein acid solution is：25wt% nitric acid, 5～8% Fluohydric acid .s, remaining is water；
B, the pipe B that pipe A is rolled into into 42 × 2.5mm of Φ using two-roll cold rolling mill, are deoiled, after deoiling after the completion of rolling
Pipe B is sent in annealing furnace, 1066 DEG C～1211 DEG C are heated to, solution treatment is carried out when coming out of the stove；Rectified after solution treatment
Directly, pipe C is taken out after rinsing well to obtain after reconditioning, pickling 20 minutes；Wherein acid solution is：25wt% nitric acid, 5～8% Fluohydric acid .s,
Remaining is water；
C, the pipe D that pipe C is rolled into into 25 × 1.5mm of Φ using two-roll cold rolling mill, are deoiled, after deoiling after the completion of rolling
Pipe D is sent in annealing furnace, 1066 DEG C～1211 DEG C are heated to, solution treatment is carried out when coming out of the stove；Take the lead after solution treatment acid
Wash 20 minutes, taking-up is rinsed rear ultrasonic examination well and obtains qualified pipe E, into next road production process；Wherein acid solution is：
25wt% nitric acid, 5～8% Fluohydric acid .s, remaining is water；
D, the pipe F that pipe E cold-drawns are obtained 22 × 1.2mm of Φ using even drawing machine, then obtain 16 × 1.2mm of Φ using empty sinking
Pipe G, after pipe G deoils, send into annealing furnace in, be heated to 1066 DEG C～1211 DEG C, solution treatment is carried out when coming out of the stove；Solid solution
Aligned after process, pickling is taken out after rinsing well after 20 minutes and polishes to obtain pipe H；
E, the pipe I that pipe H is rolled into Φ 14 × 0.65 using three-high mill, after pipe I deoils, are sent in annealing furnace, plus
Heat carries out solution treatment to 1066 DEG C～1211 DEG C when coming out of the stove；Aligned after solution treatment, pickling 20 minutes, take out and rinse
Ultrasonic examination after clean obtains pipe J；
F, the pipe M that pipe J is rolled into 12.7 × 0.51mm of Φ using three-high mill, pipe M Jing deoil, align, tack, super
Finished product after sonic flaw detection, eddy current inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110279647.9A CN102321853B (en) | 2011-09-20 | 2011-09-20 | Stainless steel pipe used in aircrafts and ultra-low temperature systems of aircrafts, and manufacturing method thereof |
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|---|---|---|---|
| CN201110279647.9A CN102321853B (en) | 2011-09-20 | 2011-09-20 | Stainless steel pipe used in aircrafts and ultra-low temperature systems of aircrafts, and manufacturing method thereof |
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| CN102321853A CN102321853A (en) | 2012-01-18 |
| CN102321853B true CN102321853B (en) | 2017-04-26 |
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| CN103343199B (en) * | 2013-07-08 | 2015-05-06 | 山西太钢不锈钢股份有限公司 | ER307Si weld line steel solid dissolving technology |
| DE102014110902A1 (en) * | 2014-07-31 | 2016-02-04 | Sandvik Materials Technology Deutschland Gmbh | Method for producing a stainless steel tube and stainless steel tube |
| DE102014222827A1 (en) * | 2014-11-07 | 2016-05-12 | Sms Group Gmbh | Method for controlling and / or regulating a metallurgical plant |
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| JPS5959863A (en) * | 1982-09-29 | 1984-04-05 | Sumitomo Metal Ind Ltd | Austenitic steel with favorable weldability and favorable strength at high temperature |
| CN100567542C (en) * | 2003-03-20 | 2009-12-09 | 住友金属工业株式会社 | Container and utensil that high pressure hydrogen is done with stainless steel, by this steel |
| JP4907151B2 (en) * | 2005-11-01 | 2012-03-28 | 新日鐵住金ステンレス株式会社 | Austenitic high Mn stainless steel for high-pressure hydrogen gas |
| CN103060718B (en) * | 2007-12-20 | 2016-08-31 | 冶联科技地产有限责任公司 | Low-nickel austenitic stainless steel containing stabilizing elements |
| CN101633999B (en) * | 2009-05-26 | 2011-06-01 | 山西太钢不锈钢股份有限公司 | Austenitic stainless steel, steel tube thereof and manufacturing method thereof |
| CN102337484B (en) * | 2011-09-20 | 2016-11-23 | 上海尊马汽车管件股份有限公司 | Rustless steel used by airborne vehicle and ultra-low temperature systems stainless steel tube thereof and preparation method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 201400, Shanghai, Fengxian District, Pu Shun Road, No. third, 913, 1-5 Applicant after: SHANGHAI ZUNMA AUTO PIPE CO., LTD. Address before: 201400 No. 2, No. 648, No. 5 Yang Cun, South Bridge Town, Shanghai, Fengxian District Applicant before: Shanghai Zunma Stainless Steel Pipe Manufacturing Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHANGHAI ZUNMA STAINLESS STEEL PIPE MANUFACTURING CO.,LTD. TO: SHANGHAI ZUNMA AUTOMOBILE PIPE FITTING CO., LTD. |
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