CN102321853A - Flyer and very low temperature system thereof are with stainless steel tube and preparation method - Google Patents
Flyer and very low temperature system thereof are with stainless steel tube and preparation method Download PDFInfo
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- CN102321853A CN102321853A CN201110279647A CN201110279647A CN102321853A CN 102321853 A CN102321853 A CN 102321853A CN 201110279647 A CN201110279647 A CN 201110279647A CN 201110279647 A CN201110279647 A CN 201110279647A CN 102321853 A CN102321853 A CN 102321853A
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Abstract
A kind of flyer disclosed by the invention and very low temperature system thereof use stainless steel tube; It adopts below rolling the forming of stainless steel pipe that contains following mass percent composition: the C:0.04%, Mn:8.00%～10.00%, below the Si:1.00%, below the P:0.03%, Cr:19.00%～21.00%, Ni:5.5%～7.5%, below the Mo:0.75%, below the Co:075%, N:0.15%～0.40%, remainder is an iron.The tensile strength of the stainless steel tube of employing technique scheme preparation is at 979～1117MPa, and ys is greater than 827MPa, and unit elongation is 20%.The austenite of its steel is highly stable; Even the cold working through 60% still can keep not having the characteristic of magnetic, it has good toughness and corrosion resistance nature; Intensity during room temperature is the twice of general austenitic stainless steel 304,321,316; This steel has favorable manufacturability, erosion resistance and oxidation-resistance property, and under the situation of-253 ℃ very low temperature, has very high intensity and toughness; Also have simultaneously good high-temperature behavior, this steel grade is widely used in the resistance to high temperature oxidation parts of aviation and cryogenic system and the parts of no magnetic.The invention also discloses the preparation method of this stainless steel tube.
Description
Technical field
The present invention relates to the stainless steel tube technical field, particularly a kind of flyer and very low temperature system thereof are with stainless steel tube and preparation method.
Background technology
Along with rapid development of economy; Flyer and very low temperature system thereof often need use stainless steel tube; And a large amount of at present nickel 5 steel that use can only use under-156 ℃ condition; Can not satisfy some very low temperature systems, use under the storage system-196 ℃ condition like Sweet natural gas, even lower temperature condition uses down.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of can have very high intensity and toughness, the stainless steel tube that also has good high-temperature behavior simultaneously under the situation of-253 ℃ very low temperature.
Two of technical problem to be solved by this invention is to provide the preparation method of above-mentioned stainless steel tube.
Technical problem to be solved by this invention can realize through following technical scheme:
A kind of flyer and very low temperature system thereof use stainless steel tube; It adopts below rolling the forming of stainless steel pipe that contains following mass percent composition: the C:0.04%, Mn:8.00%～10.00%, below the Si:1.00%, below the P:0.03%, Cr:19.00%～21.00%, below Ni:5.5%～7.5%Mo:0.75%, below the Co:075%, N:0.15%～0.40%, remainder is an iron.
Above-mentioned flyer and very low temperature system thereof in turn include the following steps with the preparation method of stainless steel tube:
A, the round steel that will contain the Φ 60mm～Φ 75mm of mentioned component carry out hot piercing through Mannesmann piercing mill; Form the pipe of Φ 65mm * 5.5mm or Φ 75mm * 6.5mm; Then pipe was carried out pickling 20 minutes, rinse the back reconditioning well with water blast gun after the discharging and get pipe A, wherein acid solution is: 25wt% nitric acid; 5～8% hydrofluoric acid, all the other are water;
B, adopt two-roll cold rolling mill that pipe A is rolled into the pipe B of Φ 42 * 2.5mm, deoil after the rolling completion, after deoiling pipe B is sent in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, reconditioning, pickling after taking out after 20 minutes and rinsing well pipe C; Wherein acid solution is: 25wt% nitric acid, and 5～8% hydrofluoric acid, all the other are water;
C, adopt two-roll cold rolling mill that pipe C is rolled into the pipe D of Φ 25 * 1.5mm, deoil after the rolling completion, after deoiling pipe D is sent in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; The pickling 20 minutes of taking the lead after the solution treatment is taken out and is rinsed the back UT well and get qualified pipe E, gets into following one production process; Wherein acid solution is: 25wt% nitric acid, and 5～8% hydrofluoric acid, all the other are water;
D, adopt to connect the machine that pulls out pipe E cold-drawn is obtained the pipe F of Φ 22 * 1.2mm, adopt empty sinking to obtain the pipe G of Φ 16 * 1.2mm then, after pipe G deoils, send in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, pickling polish after taking out after 20 minutes and rinsing well pipe H;
E, adopt three-high mill that pipe H is rolled into the pipe I of Φ 14 * 0.65, after pipe I deoils, send in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, pickling 20 minutes, taking-up is rinsed the back UT well and is got pipe J;
F, adopt three-high mill that pipe J is rolled into the pipe M of Φ 12.7 * 0.51mm, pipe M through deoil, finished product behind the aligning, tack, UT, eddy current test.
Said solution treatment: promptly steel sprays with tap water at fire door through behind the high-temperature area, reaches the solid solution purpose.
The tensile strength of the stainless steel tube of employing technique scheme preparation is at 979～1117Mpa, and ys is greater than 827Mpa, and unit elongation is 20%.The austenite of its steel is highly stable; Even the cold working through 60% still can keep not having the characteristic of magnetic, it has good toughness and corrosion resistance nature; Intensity during room temperature is the twice of general austenitic stainless steel 304,321,316; This steel has favorable manufacturability, erosion resistance and oxidation-resistance property, and under the situation of-253 ℃ very low temperature, has very high intensity and toughness; Also have simultaneously good high-temperature behavior, this steel grade is widely used in the resistance to high temperature oxidation parts of aviation and cryogenic system and the parts of no magnetic.
Embodiment
Below, the present invention will be described in more detail.In this manual, " % " of the composition of expression steel, short of special instruction is exactly " quality % "
The present invention is applicable to that flyer and very low temperature system thereof use stainless steel tube; It adopts below rolling the forming of stainless steel pipe that contains following mass percent composition: the C:0.04%, Mn:8.00%～10.00%, below the Si:1.00%, below the P:0.03%, Cr:19.00%～21.00%, below Ni:5.5%～7.5%Mo:0.75%, below the Co:075%, N:0.15%～0.40%, remainder is an iron.
Above-mentioned flyer and very low temperature system thereof in turn include the following steps with the preparation method of stainless steel tube:
A, the round steel that will contain the Φ 60mm～Φ 75mm of mentioned component carry out hot piercing through Mannesmann piercing mill; Form the pipe of Φ 65mm * 5.5mm or Φ 75mm * 6.5mm; Then pipe was carried out pickling 20 minutes, rinse the back reconditioning well with water blast gun after the discharging and get pipe A, wherein acid solution is: 25wt% nitric acid; 5～8% hydrofluoric acid, all the other are water;
B, adopt two-roll cold rolling mill that pipe A is rolled into the pipe B of Φ 42 * 2.5mm, deoil after the rolling completion, after deoiling pipe B is sent in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, reconditioning, pickling after taking out after 20 minutes and rinsing well pipe C; Wherein acid solution is: 25wt% nitric acid, and 5～8% hydrofluoric acid, all the other are water;
C, adopt two-roll cold rolling mill that pipe C is rolled into the pipe D of Φ 25 * 1.5mm, deoil after the rolling completion, after deoiling pipe D is sent in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; The pickling 20 minutes of taking the lead after the solution treatment is taken out and is rinsed the back UT well and get qualified pipe E, gets into following one production process; Wherein acid solution is: 25wt% nitric acid, and 5～8% hydrofluoric acid, all the other are water;
D, adopt to connect the machine that pulls out pipe E cold-drawn is obtained the pipe F of Φ 22 * 1.2mm, adopt empty sinking to obtain the pipe G of Φ 16 * 1.2mm then, after pipe G deoils, send in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, pickling polish after taking out after 20 minutes and rinsing well pipe H;
E, adopt three-high mill that pipe H is rolled into the pipe I of Φ 14 * 0.65, after pipe I deoils, send in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, pickling 20 minutes, taking-up is rinsed the back UT well and is got pipe J;
F, adopt three-high mill that pipe J is rolled into the pipe M of Φ 12.7 * 0.51mm, pipe M through deoil, finished product behind the aligning, tack, UT, eddy current test.
Said solution treatment: promptly steel sprays with tap water at fire door through behind the high-temperature area, reaches the solid solution purpose.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification sheets just explains principle of the present invention; Under the prerequisite that does not break away from the utility model spirit and scope, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. flyer and very low temperature system thereof use stainless steel tube; It adopts below rolling the forming of stainless steel pipe that contains following mass percent composition: the C:0.04%, Mn:8.00%～10.00%, below the Si:1.00%, below the P:0.03%, Cr:19.00%～21.00%, below Ni:5.5%～7.5%Mo:0.75%, below the Co:075%, N:0.15%～0.40%, remainder is an iron.
2. described flyer of claim 1 and very low temperature system thereof is characterized in that with the preparation method of stainless steel tube, in turn include the following steps:
A, the round steel that will contain the Φ 60mm～Φ 75mm of mentioned component carry out hot piercing through Mannesmann piercing mill; Form the pipe of Φ 65mm * 5.5mm or Φ 75mm * 6.5mm; Then pipe was carried out pickling 20 minutes, rinse the back reconditioning well with water blast gun after the discharging and get pipe A, wherein acid solution is: 25wt% nitric acid; 5～8% hydrofluoric acid, all the other are water;
B, adopt two-roll cold rolling mill that pipe A is rolled into the pipe B of Φ 42 * 2.5mm, deoil after the rolling completion, after deoiling pipe B is sent in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, reconditioning, pickling after taking out after 20 minutes and rinsing well pipe C; Wherein acid solution is: 25wt% nitric acid, and 5～8% hydrofluoric acid, all the other are water;
C, adopt two-roll cold rolling mill that pipe C is rolled into the pipe D of Φ 25 * 1.5mm, deoil after the rolling completion, after deoiling pipe D is sent in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; The pickling 20 minutes of taking the lead after the solution treatment is taken out and is rinsed the back UT well and get qualified pipe E, gets into following one production process; Wherein acid solution is: 25wt% nitric acid, and 5～8% hydrofluoric acid, all the other are water;
D, adopt to connect the machine that pulls out pipe E cold-drawn is obtained the pipe F of Φ 22 * 1.2mm, adopt empty sinking to obtain the pipe G of Φ 16 * 1.2mm then, after pipe G deoils, send in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, pickling polish after taking out after 20 minutes and rinsing well pipe H;
E, adopt three-high mill that pipe H is rolled into the pipe I of Φ 14 * 0.65, after pipe I deoils, send in the lehre, be heated to 1066 ℃～1211 ℃, carry out solution treatment when coming out of the stove; Align after the solution treatment, pickling 20 minutes, taking-up is rinsed the back UT well and is got pipe J;
F, adopt three-high mill that pipe J is rolled into the pipe M of Φ 12.7 * 0.51mm, pipe M through deoil, finished product behind the aligning, tack, UT, eddy current test.
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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| Application Number | Priority Date | Filing Date | Title |
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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 true CN102321853A (en) | 2012-01-18 |
| CN102321853B CN102321853B (en) | 2017-04-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343199A (en) * | 2013-07-08 | 2013-10-09 | 山西太钢不锈钢股份有限公司 | ER307Si weld line steel solid dissolving technology |
| CN106794501A (en) * | 2014-07-31 | 2017-05-31 | 山特维克原料技术德国公开股份有限公司 | Manufacture the method and grade steel pipe high of grade steel pipe high |
| CN107109515A (en) * | 2014-11-07 | 2017-08-29 | Sms集团有限公司 | Method for controlling and/or adjusting metallurgical equipment |
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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 |
| CN1697890A (en) * | 2003-03-20 | 2005-11-16 | 住友金属工业株式会社 | High-strength stainless steel, container and hardware made of such steel |
| CN101300370A (en) * | 2005-11-01 | 2008-11-05 | 新日铁住金不锈钢株式会社 | High-manganese austenitic stainless steel for high-pressure hydrogen gas |
| CN101633999A (en) * | 2009-05-26 | 2010-01-27 | 山西太钢不锈钢股份有限公司 | Austenitic stainless steel, steel tube thereof and manufacturing method thereof |
| CN101903551A (en) * | 2007-12-20 | 2010-12-01 | Ati资产公司 | The low-nickel austenitic stainless steel that contains stable element |
| CN102337484A (en) * | 2011-09-20 | 2012-02-01 | 上海尊马不锈钢制管有限公司 | Aircraft, stainless steel used for stainless steel pipe for ultralow temperature system of aircraft and preparation method for stainless steel |
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2011
- 2011-09-20 CN CN201110279647.9A patent/CN102321853B/en active Active
Patent Citations (6)
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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 |
| CN1697890A (en) * | 2003-03-20 | 2005-11-16 | 住友金属工业株式会社 | High-strength stainless steel, container and hardware made of such steel |
| CN101300370A (en) * | 2005-11-01 | 2008-11-05 | 新日铁住金不锈钢株式会社 | High-manganese austenitic stainless steel for high-pressure hydrogen gas |
| CN101903551A (en) * | 2007-12-20 | 2010-12-01 | Ati资产公司 | The low-nickel austenitic stainless steel that contains stable element |
| CN101633999A (en) * | 2009-05-26 | 2010-01-27 | 山西太钢不锈钢股份有限公司 | Austenitic stainless steel, steel tube thereof and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343199A (en) * | 2013-07-08 | 2013-10-09 | 山西太钢不锈钢股份有限公司 | ER307Si weld line steel solid dissolving technology |
| 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 |
| CN106794501A (en) * | 2014-07-31 | 2017-05-31 | 山特维克原料技术德国公开股份有限公司 | Manufacture the method and grade steel pipe high of grade steel pipe high |
| CN106794501B (en) * | 2014-07-31 | 2019-01-04 | 山特维克原料技术德国公开股份有限公司 | Manufacture high grade steel pipe method and high grade steel pipe |
| CN107109515A (en) * | 2014-11-07 | 2017-08-29 | Sms集团有限公司 | Method for controlling and/or adjusting metallurgical equipment |
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| CN102321853B (en) | 2017-04-26 |
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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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