CN103361536A - Fully-austenitic low-carbon nickel-iron-chromium alloy seamless pipe - Google Patents
Fully-austenitic low-carbon nickel-iron-chromium alloy seamless pipe Download PDFInfo
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- CN103361536A CN103361536A CN201310194361XA CN201310194361A CN103361536A CN 103361536 A CN103361536 A CN 103361536A CN 201310194361X A CN201310194361X A CN 201310194361XA CN 201310194361 A CN201310194361 A CN 201310194361A CN 103361536 A CN103361536 A CN 103361536A
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Abstract
The invention discloses a fully-austenitic low-carbon nickel-iron-chromium alloy seamless pipe. The seamless pipe comprises the following components: iron, nickel, chromium, aluminum, titanium, carbon, vanadium, silicon, zinc, phosphorus and sulfur. The seamless pipe is manufactured in the following steps: (1) detecting a blank, and thermally processing; (2) annealing the blank, and then pickling for the first time; (3) grinding the blank, lubricating, cold drawing, rolling and deoiling; (4) judging whether the blank is manufactured into a finished product, and carrying out solid solution heat treatment on the finished product if the obtained blank meets the a finished product standard; (5) otherwise, carrying out solid solution heat treatment on an intermediate product, straightening, cutting at fixed length, pickling and repeating the step (3); and (6) detecting the finished product, spraying words, packing the finished product, weighing and delivering from storage. The seamless pipe disclosed by the invention has good surface corrosion resistance, excellent performance standard and low manufacturing cost and is simple in manufacturing process.
Description
Technical field
The present invention relates to a kind of manufacturing of seamless tube, be specifically related to a kind of full austenite low-carbon ferronickel Chrome metal powder seamless tube.
Background technology
The Incoloy800HT alloy is a kind of and Ni-Fe-Chrome metal powder isonomic full austenite the low-carbon (LC) of Incoloy 800 alloys.The a lot of corrosive medium corrosion of Incoloy800HT alloy ability.Its higher Ni content makes it that good stress-corrosion-cracking resistance be arranged under the water-based etching condition.High-Cr makes it to have better anti-pitting attack and crevice corrosion cracking performance.This alloy has good anti-nitric acid, organic acid corrodibility, but the erosion resistance in sulfuric acid and hydrochloric acid is limited.Except the possible origination point corrosion of halogenide, in oxidisability and non-oxidizable salt, 800HT has good erosion resistance.In the mixture of water, steam and steam, air, carbonic acid gas, also has good erosion resistance.Because austenite has comprehensive and good over-all properties, in all trades and professions, obtain a wide range of applications, this all makes traditional austenite seamless tube can't reach requirement, the Ni-Fe of the making method making full austenite low-carbon (LC) of traditional seamless tube-Chrome metal powder seamless tube, not only waste resource, and complex procedures.
Summary of the invention
The object of the present invention is to provide that a kind of seamless tube surface corrosion-resistant erosion performance improves, superior product performance standards, reduced cost of manufacture and the simple full austenite low-carbon ferronickel of operation Chrome metal powder seamless tube.
Technical scheme of the present invention is, a kind of full austenite low-carbon ferronickel Chrome metal powder seamless tube, described full austenite low-carbon ferronickel Chrome metal powder seamless tube comprises by weight percentage: iron is 28%-41%, nickel is 30%-34%, chromium is 18%-22%, aluminium is 4.3%-6.8%, titanium is 5.2%-6.9%, carbon is 0.05%-0.12%, and vanadium is 0.11%-0.32%, and silicon is 0.47%-0.53%, zinc is 0.8%-1.2%, phosphorus is 0.03%-0.06%, and sulphur is 0.04%-0.07%, and the manufacturing step of described full austenite low-carbon ferronickel Chrome metal powder seamless tube comprises:
(1) at first blank is tested and blank is carried out hot-work,
(2) blank after the hot-work is carried out anneal, after anneal, carries out the pickling first time,
(3) blank after the pickling is carried out reconditioning, lubricated, cold drawing and rolling and the processing of deoiling,
(4) judge whether to satisfy finished product, then carry out in this way finished product solution heat treatment, aligning, Ding Qie and pickling,
(5) as be not then carry out centre product solution heat treatment, aligning, surely cut, pickling and repeating step (3),
(6) end product is tested, and sprays word, packs, weighs and outbound.
In a preferred embodiment of the present invention, hot processing temperature is 900 ℃-1200 ℃ in the described hot procedure, and the soaking time of described material is that the thickness of every 100mm is incubated 60 minutes.
In a preferred embodiment of the present invention, the type of cooling of described anneal is shrend or fast cooling between 540 ℃-760 ℃.
In a preferred embodiment of the present invention, the fixing heat treated temperature of described finished product is 920 ℃-980 ℃.
In a preferred embodiment of the present invention, the temperature of described middle product solution heat treatment is 960 ℃-1010 ℃.
In a preferred embodiment of the present invention, thickness adopts the mode of quick air cooling to cool off less than the blank of 1.5mm in the described finished product solution heat treatment process.
Of the present invention is a kind of full austenite low-carbon ferronickel Chrome metal powder seamless tube, has improved full austenite low-carbon ferronickel Chrome metal powder seamless tube surface corrosion-resistant erosion performance, and the superior standard of performance of seamless tube reduced the cost of manufacture of seamless tube, and production process is simple.
Description of drawings
Fig. 1 be a preferred embodiment of the present invention process flow diagram.
Embodiment
The below is described in detail preferred embodiment of the present invention, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
Of the present invention is a kind of full austenite low-carbon ferronickel Chrome metal powder seamless tube, referring to shown in Figure 1, the step of described full austenite low-carbon ferronickel Chrome metal powder seamless tube manufacture method comprises that (1) at first test to blank and blank is carried out hot-work, (2) blank after the hot-work is carried out anneal, after anneal, carry out the pickling first time, (3) blank after the pickling is carried out reconditioning, lubricated, cold drawing and rolling and the processing of deoiling, (4) judge whether to satisfy finished product, then carry out in this way the finished product solution heat treatment, aligning, surely cut and pickling, (5) as not being then to carry out centre product solution heat treatment, aligning, surely cut, pickling and repeating step (3), (6) end product is tested, the spray word, packing, weigh and outbound.
Described full austenite low-carbon ferronickel Chrome metal powder seamless tube comprises by weight percentage: iron is 28%-41%, nickel is 30%-34%, chromium is 18%-22%, and aluminium is 4.3%-6.8%, and titanium is 5.2%-6.9%, carbon is 0.05%-0.12%, vanadium is 0.11%-0.32%, and silicon is 0.47%-0.53%, and zinc is 0.8%-1.2%, phosphorus is 0.03%-0.06%, and sulphur is 0.04%-0.07%.
Further specify, the type of cooling of described anneal is shrend or fast cooling between 540 ℃-760 ℃.The fixing heat treated temperature of described finished product is 920 ℃-980 ℃.The temperature of product solution heat treatment is 960 ℃-1010 ℃ in the middle of described.Thickness adopts the mode of quick air cooling to cool off less than the blank of 1.5mm in the described finished product solution heat treatment process.
Further specify, before thermal treatment and in the heat treatment process, should remain the workpiece cleaning.In heat treatment process, can not contact sulphur, phosphorus, lead and other low melting point metal, otherwise can damage the performance of material, should note removing dirts such as mark lacquer, thermoindicator paint, coloured oiled crayon, lubricating oil, fuel.Sulphur content in the fuel is more low better, and the sulphur content in the Sweet natural gas should be less than 0.1%, and sulfur in heavy oil content should be less than 0.5%.Consider temperature control and the needs that keep clean, be preferably in vacuum oven or the gas shield stove and heat-treat.Also can heat in box-type furnace or gas furnace, but furnace gas must be clean and be advisable with neutrality to micro-oxygenation, should avoid furnace gas to fluctuate between oxidisability and reductibility, adding thermal-flame can not directly burn to workpiece.
Further specify again; full austenite low-carbon ferronickel Chrome metal powder seamless tube is fit to adopt any traditional welding technique welding, such as gas tungsten arc welding, plasma arc welding, manual inferior arc-welding, metal inert-gas arc welding, welding, shielding gas electric-arc welding etc.The welding of full austenite low-carbon ferronickel Chrome metal powder seamless tube must be carried out in annealed state, and cleans out spot, dust and various mark.Adopt input low in calories, interlayer temperature is no more than 150 ℃.Need not before the weldering or postweld heat treatment
A kind of full austenite low-carbon ferronickel Chrome metal powder seamless tube of the present invention has improved full austenite low-carbon ferronickel Chrome metal powder seamless tube surface corrosion-resistant erosion performance, and the superior standard of performance of seamless tube reduced the cost of manufacture of seamless tube, and production process is simple.
The above only is the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (6)
1. full austenite low-carbon ferronickel Chrome metal powder seamless tube, it is characterized in that: described full austenite low-carbon ferronickel Chrome metal powder seamless tube comprises by weight percentage: iron is 28%-41%, nickel is 30%-34%, chromium is 18%-22%, aluminium is 4.3%-6.8%, titanium is 5.2%-6.9%, carbon is 0.05%-0.12%, vanadium is 0.11%-0.32%, silicon is 0.47%-0.53%, and zinc is 0.8%-1.2%, and phosphorus is 0.03%-0.06%, and sulphur is 0.04%-0.07%, and the manufacturing step of described full austenite low-carbon ferronickel Chrome metal powder seamless tube comprises:
(1) at first blank is tested and blank is carried out hot-work,
(2) blank after the hot-work is carried out anneal, after anneal, carries out the pickling first time,
(3) blank after the pickling is carried out reconditioning, lubricated, cold drawing and rolling and the processing of deoiling,
(4) judge whether to satisfy finished product, then carry out in this way finished product solution heat treatment, aligning, Ding Qie and pickling,
(5) as be not then carry out centre product solution heat treatment, aligning, surely cut, pickling and repeating step (3),
(6) end product is tested, and sprays word, packs, weighs and outbound.
2. full austenite low-carbon ferronickel Chrome metal powder seamless tube according to claim 1, it is characterized in that: hot processing temperature is 900 ℃-1200 ℃ in the described hot procedure, the soaking time of described material is the thickness insulation 60 minutes of every 100mm.
3. full austenite low-carbon ferronickel Chrome metal powder seamless tube according to claim 1 is characterized in that: the type of cooling of described anneal is shrend or fast cooling between 540 ℃-760 ℃.
4. full austenite low-carbon ferronickel Chrome metal powder seamless tube according to claim 1 is characterized in that: the fixing heat treated temperature of described finished product is 920 ℃-980 ℃.
5. full austenite low-carbon ferronickel Chrome metal powder seamless tube according to claim 1 is characterized in that: the temperature of product solution heat treatment is 960 ℃-1010 ℃ in the middle of described.
6. full austenite low-carbon ferronickel Chrome metal powder seamless tube according to claim 1, it is characterized in that: thickness adopts the mode of quick air cooling to cool off less than the blank of 1.5mm in the described finished product solution heat treatment process.
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| CN201310194361.XA CN103361536B (en) | 2013-05-23 | 2013-05-23 | Fully-austenitic low-carbon nickel-iron-chromium alloy seamless pipe |
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| CN201310194361.XA CN103361536B (en) | 2013-05-23 | 2013-05-23 | Fully-austenitic low-carbon nickel-iron-chromium alloy seamless pipe |
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| CN103361536B CN103361536B (en) | 2015-04-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174689A (en) * | 2014-07-21 | 2014-12-03 | 苏州贝思特金属制品有限公司 | Method for manufacturing 13CrMo44 alloy seamless steel pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2149210C1 (en) * | 1998-05-08 | 2000-05-20 | Байдуганов Александр Меркурьевич | Refractory alloy |
| RU2194785C2 (en) * | 2000-06-15 | 2002-12-20 | Байдуганов Александр Меркурьевич | Heat-resistant alloy |
| CN101457316A (en) * | 2007-12-12 | 2009-06-17 | 海恩斯国际公司 | Weldable oxidation resistant nickel-iron-chromium-aluminum alloy |
| CN102620062A (en) * | 2012-03-21 | 2012-08-01 | 苏州贝思特金属制品有限公司 | Method for manufacturing low-carbon resisto seamless stainless steel tubes |
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- 2013-05-23 CN CN201310194361.XA patent/CN103361536B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2149210C1 (en) * | 1998-05-08 | 2000-05-20 | Байдуганов Александр Меркурьевич | Refractory alloy |
| RU2194785C2 (en) * | 2000-06-15 | 2002-12-20 | Байдуганов Александр Меркурьевич | Heat-resistant alloy |
| CN101457316A (en) * | 2007-12-12 | 2009-06-17 | 海恩斯国际公司 | Weldable oxidation resistant nickel-iron-chromium-aluminum alloy |
| CN102620062A (en) * | 2012-03-21 | 2012-08-01 | 苏州贝思特金属制品有限公司 | Method for manufacturing low-carbon resisto seamless stainless steel tubes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174689A (en) * | 2014-07-21 | 2014-12-03 | 苏州贝思特金属制品有限公司 | Method for manufacturing 13CrMo44 alloy seamless steel pipe |
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Inventor after: Liu Chao Inventor before: Wang Qingming |
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Address after: 215500 Changshou City Xinzhuang (Yang Yuan) Industrial Park, Changshou City, Jiangsu Patentee after: Suzhou fitok metal products Co., Ltd. Address before: 215500 Xinzhuang (Yang Yuan) Industrial Park in Suzhou, Jiangsu Patentee before: Suzhou Best Metal Products Co., Ltd. |
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