CN106119646A - A kind of boiler tube and processing technology thereof - Google Patents
A kind of boiler tube and processing technology thereof Download PDFInfo
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- CN106119646A CN106119646A CN201610681551.8A CN201610681551A CN106119646A CN 106119646 A CN106119646 A CN 106119646A CN 201610681551 A CN201610681551 A CN 201610681551A CN 106119646 A CN106119646 A CN 106119646A
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- boiler tube
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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Abstract
The invention discloses a kind of boiler tube and processing technology thereof, described boiler tube, by weight percentage, barium 7.2 11.0%, molybdenum 5.9 9.1%, caesium 5.1 8.0%, lithium 2.1 2.6%, lead 1.5 1.9%, aluminum 0.8 1.6%, boron 0.05 0.09%, carbon 0.03 0.08%, ferrum 0.001 0.003%, nickel 0.001 0.003%, magnesium is surplus.The present invention prepares a kind of high-performance boiler tube material with higher-strength, hardness, has light weight, anti abrasive advantage simultaneously, and has excellent anticorrosive, can meet the prescription of boiler tube.
Description
Technical field
The present invention relates to a kind of technical field of alloy, specifically a kind of boiler tube and processing technology thereof.
Background technology
Alloy has that density is little, specific strength and specific stiffness is high, heat-conductivity conducting performance is good, damping vibration attenuation, electromagnetic shielding, be prone to
The advantages such as machine-shaping, waste material easily recovery, have important in fields such as automobile, electronic communication, Aero-Space and national defense and military
Using value, be referred to as 21 century " green engineering material ".Alloy has that density is little, specific strength and specific stiffness is high, heat conduction is led
The advantages such as good electrical property, damping vibration attenuation, electromagnetic shielding, easily processed into type, waste material easily recovery, in automobile, electronic communication, boat
The empty field such as space flight and national defense and military has important using value, is referred to as 21 century " green engineering material ".
And boiler is as the important equipment of heating power industry, therefore it is badly in need of a kind of boiler tube of research and development.
Summary of the invention
It is an object of the invention to provide a kind of boiler tube and processing technology thereof, to solve proposition in above-mentioned background technology
Problem.
For achieving the above object, the present invention provides following technical scheme:
A kind of boiler tube, by weight percentage, barium 7.2-11.0%, molybdenum 5.9-9.1%, caesium 5.1-8.0%, lithium 2.1-
2.6%, lead 1.5-1.9%, aluminum 0.8-1.6%, boron 0.05-0.09%, carbon 0.03-0.08%, ferrum 0.001-0.003%, nickel
0.001-0.003%, magnesium is surplus.
As the further scheme of the present invention: by weight percentage, barium 8.4-10.0%, molybdenum 7.2-8.5%, caesium 6.3-
7.5%, lithium 2.1-2.6%, lead 1.5-1.9%, aluminum 0.8-1.6%, boron 0.05-0.09%, carbon 0.03-0.08%, ferrum
0.001-0.003%, nickel 0.001-0.003%, magnesium is surplus.
As the further scheme of the present invention: by weight percentage, barium 9.2%, molybdenum 8.1%, caesium 6.9%, lithium
2.5%, lead 1.7%, aluminum 1.1%, boron 0.06%, carbon 0.06%, ferrum 0.002%, nickel 0.002%, magnesium is surplus.
The processing technology of a kind of boiler tube, concretely comprises the following steps:
(1) first, putting in vacuum medium frequency induction furnace by above-mentioned material by weight, smelting temperature is 1045-1100 DEG C, molten
The refining time is 25-37min, and then, decompression heats up after being cooled to 10 DEG C, and temperature improves 100 DEG C every 10min, until warm
Degree brings up to 1300 DEG C；
(2) then, at 810 DEG C, carry out constant temperature burn casting, keep 10 DEG C of speed per second to lower the temperature when burning casting, be cooled to
240℃；
(3) then, under nitrogen atmosphere, carrying out Quenching Treatment, hardening heat is 600 DEG C, and the process time is 11min, quenches
After fire terminates, it is 0.1 × 10 in vacuum-3MPa borehole cooling, is reduced to temperature 600 DEG C, obtains melting solid；
(4) last, casting mould will be burnt at 270 DEG C, preheat 1h, subsequently the melting solid that step (3) obtains will be poured into preheating
After burning casting mould in, be 0.1 × 10 in vacuum-3It is cooled to 25 DEG C under MPa, to obtain final product.
As the further scheme of the present invention: smelting temperature is 990 DEG C, smelting time is 32min.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention prepares a kind of high-performance boiler tubing with higher-strength, hardness by selecting specific formula
Material, has light weight, anti abrasive advantage simultaneously, and has excellent anticorrosive, can meet the prescription of boiler tube.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Embodiment 1
A kind of boiler tube, by weight percentage, barium 7.2%, molybdenum 5.9%, caesium 5.1%, lithium 2.1%, lead 1.5%, aluminum
0.8%, boron 0.05%, carbon 0.03%, ferrum 0.001%, nickel 0.001%, magnesium is surplus.
The processing technology of a kind of boiler tube, concretely comprises the following steps:
(1) first, putting in vacuum medium frequency induction furnace by above-mentioned material by weight, smelting temperature is 1045 DEG C, during melting
Between be 25min, then, decompression be cooled to 10 DEG C after heat up, temperature every 10min improve 100 DEG C, until temperature brings up to
1300℃；
(2) then, at 810 DEG C, carry out constant temperature burn casting, keep 10 DEG C of speed per second to lower the temperature when burning casting, be cooled to
240℃；
(3) then, under nitrogen atmosphere, carrying out Quenching Treatment, hardening heat is 600 DEG C, and the process time is 11min, quenches
After fire terminates, it is 0.1 × 10 in vacuum-3MPa borehole cooling, is reduced to temperature 600 DEG C, obtains melting solid；
(4) last, casting mould will be burnt at 270 DEG C, preheat 1h, subsequently the melting solid that step (3) obtains will be poured into preheating
After burning casting mould in, be 0.1 × 10 in vacuum-3It is cooled to 25 DEG C under MPa, to obtain final product.
Embodiment 2
A kind of boiler tube, by weight percentage, barium 8.4%, molybdenum 7.2%, caesium 6.3%, lithium 2.1%, lead 1.5%, aluminum
0.8%, boron 0.05%, carbon 0.03%, ferrum 0.001%, nickel 0.001%, magnesium is surplus.
The processing technology of a kind of boiler tube, concretely comprises the following steps:
(1) first, putting in vacuum medium frequency induction furnace by above-mentioned material by weight, smelting temperature is 1045 DEG C, during melting
Between be 25min, then, decompression be cooled to 10 DEG C after heat up, temperature every 10min improve 100 DEG C, until temperature brings up to
1300℃；
(2) then, at 810 DEG C, carry out constant temperature burn casting, keep 10 DEG C of speed per second to lower the temperature when burning casting, be cooled to
240℃；
(3) then, under nitrogen atmosphere, carrying out Quenching Treatment, hardening heat is 600 DEG C, and the process time is 11min, quenches
After fire terminates, it is 0.1 × 10 in vacuum-3MPa borehole cooling, is reduced to temperature 600 DEG C, obtains melting solid；
(4) last, casting mould will be burnt at 270 DEG C, preheat 1h, subsequently the melting solid that step (3) obtains will be poured into preheating
After burning casting mould in, be 0.1 × 10 in vacuum-3It is cooled to 25 DEG C under MPa, to obtain final product.
Embodiment 3
A kind of boiler tube, by weight percentage, barium 9.2%, molybdenum 8.1%, caesium 6.9%, lithium 2.5%, lead 1.7%, aluminum
1.1%, boron 0.06%, carbon 0.06%, ferrum 0.002%, nickel 0.002%, magnesium is surplus.
The processing technology of a kind of boiler tube, concretely comprises the following steps:
(1) first, putting in vacuum medium frequency induction furnace by above-mentioned material by weight, smelting temperature is 990 DEG C, smelting time
For 32min, then, decompression heats up after being cooled to 10 DEG C, and temperature improves 100 DEG C every 10min, until temperature brings up to
1300℃；
(2) then, at 810 DEG C, carry out constant temperature burn casting, keep 10 DEG C of speed per second to lower the temperature when burning casting, be cooled to
240℃；
(3) then, under nitrogen atmosphere, carrying out Quenching Treatment, hardening heat is 600 DEG C, and the process time is 11min, quenches
After fire terminates, it is 0.1 × 10 in vacuum-3MPa borehole cooling, is reduced to temperature 600 DEG C, obtains melting solid；
(4) last, casting mould will be burnt at 270 DEG C, preheat 1h, subsequently the melting solid that step (3) obtains will be poured into preheating
After burning casting mould in, be 0.1 × 10 in vacuum-3It is cooled to 25 DEG C under MPa, to obtain final product.
Embodiment 4
A kind of boiler tube, by weight percentage, barium 10.0%, molybdenum 8.5%, caesium 7.5%, lithium 2.6%, lead 1.9%, aluminum
1.6%, boron 0.09%, carbon 0.08%, ferrum 0.003%, nickel 0.003%, magnesium is surplus.
The processing technology of a kind of boiler tube, concretely comprises the following steps:
(1) first, putting in vacuum medium frequency induction furnace by above-mentioned material by weight, smelting temperature is 1100 DEG C, during melting
Between be 37min, then, decompression be cooled to 10 DEG C after heat up, temperature every 10min improve 100 DEG C, until temperature brings up to
1300℃；
(2) then, at 810 DEG C, carry out constant temperature burn casting, keep 10 DEG C of speed per second to lower the temperature when burning casting, be cooled to
240℃；
(3) then, under nitrogen atmosphere, carrying out Quenching Treatment, hardening heat is 600 DEG C, and the process time is 11min, quenches
After fire terminates, it is 0.1 × 10 in vacuum-3MPa borehole cooling, is reduced to temperature 600 DEG C, obtains melting solid；
(4) last, casting mould will be burnt at 270 DEG C, preheat 1h, subsequently the melting solid that step (3) obtains will be poured into preheating
After burning casting mould in, be 0.1 × 10 in vacuum-3It is cooled to 25 DEG C under MPa, to obtain final product.
Embodiment 5
A kind of boiler tube, by weight percentage, barium 11.0%, molybdenum 9.1%, caesium 8.0%, lithium 2.6%, lead 1.9%, aluminum
1.6%, boron 0.09%, carbon 0.08%, ferrum 0.003%, nickel 0.003%, magnesium is surplus.
The processing technology of a kind of boiler tube, concretely comprises the following steps:
(1) first, putting in vacuum medium frequency induction furnace by above-mentioned material by weight, smelting temperature is 1100 DEG C, during melting
Between be 37min, then, decompression be cooled to 10 DEG C after heat up, temperature every 10min improve 100 DEG C, until temperature brings up to
1300℃；
(2) then, at 810 DEG C, carry out constant temperature burn casting, keep 10 DEG C of speed per second to lower the temperature when burning casting, be cooled to
240℃；
(3) then, under nitrogen atmosphere, carrying out Quenching Treatment, hardening heat is 600 DEG C, and the process time is 11min, quenches
After fire terminates, it is 0.1 × 10 in vacuum-3MPa borehole cooling, is reduced to temperature 600 DEG C, obtains melting solid；
(4) last, casting mould will be burnt at 270 DEG C, preheat 1h, subsequently the melting solid that step (3) obtains will be poured into preheating
After burning casting mould in, be 0.1 × 10 in vacuum-3It is cooled to 25 DEG C under MPa, to obtain final product.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (5)
1. a boiler tube, it is characterised in that by weight percentage, barium 7.2-11.0%, molybdenum 5.9-9.1%, caesium 5.1-
8.0%, lithium 2.1-2.6%, lead 1.5-1.9%, aluminum 0.8-1.6%, boron 0.05-0.09%, carbon 0.03-0.08%, ferrum
0.001-0.003%, nickel 0.001-0.003%, magnesium is surplus.
Boiler tube the most according to claim 1, it is characterised in that by weight percentage, barium 8.4-10.0%, molybdenum 7.2-
8.5%, caesium 6.3-7.5%, lithium 2.1-2.6%, lead 1.5-1.9%, aluminum 0.8-1.6%, boron 0.05-0.09%, carbon 0.03-
0.08%, ferrum 0.001-0.003%, nickel 0.001-0.003%, magnesium is surplus.
Boiler tube the most according to claim 1 and 2, it is characterised in that by weight percentage, barium 9.2%, molybdenum 8.1%,
Caesium 6.9%, lithium 2.5%, lead 1.7%, aluminum 1.1%, boron 0.06%, carbon 0.06%, ferrum 0.002%, nickel 0.002%, magnesium is remaining
Amount.
4. the processing technology of the boiler tube as described in claim 1-3 is arbitrary, it is characterised in that concretely comprise the following steps:
(1) first, putting in vacuum medium frequency induction furnace by above-mentioned material by weight, smelting temperature is 1045-1100 DEG C, during melting
Between be 25-37min, then, decompression be cooled to 10 DEG C after heat up, temperature every 10min improve 100 DEG C, until temperature carries
High to 1300 DEG C；
(2) then, at 810 DEG C, carry out constant temperature burn casting, keep 10 DEG C of speed per second to lower the temperature when burning casting, be cooled to 240
℃；
(3) then, under nitrogen atmosphere, carrying out Quenching Treatment, hardening heat is 600 DEG C, and the process time is 11min, quenching knot
Shu Hou, is 0.1 × 10 in vacuum-3MPa borehole cooling, is reduced to temperature 600 DEG C, obtains melting solid；
(4) last, casting mould will be burnt and at 270 DEG C, preheat 1h, after subsequently the melting solid that step (3) obtains being poured into preheating
Burn in casting mould, be 0.1 × 10 in vacuum-3It is cooled to 25 DEG C under MPa, to obtain final product.
The processing technology of boiler tube the most according to claim 4, it is characterised in that smelting temperature is 990 DEG C, smelting time
For 32min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681551.8A CN106119646A (en) | 2016-08-17 | 2016-08-17 | A kind of boiler tube and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681551.8A CN106119646A (en) | 2016-08-17 | 2016-08-17 | A kind of boiler tube and processing technology thereof |
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| CN106119646A true CN106119646A (en) | 2016-11-16 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530869A (en) * | 2008-03-14 | 2009-09-16 | 钱乐中 | Process for manufacturing stainless-steel seamless steel pipe used for high-pressure boiler, boiler and heat-exchanger |
| CN101652489A (en) * | 2007-04-03 | 2010-02-17 | 株式会社丰田自动织机 | Heat-resistant magnesium alloy |
| CN103334056A (en) * | 2013-03-25 | 2013-10-02 | 天津理工大学 | High-Cr ferritic heat-resistant steel used for thermal power boiler tube and applications thereof |
| CN104233032A (en) * | 2014-08-26 | 2014-12-24 | 盐城市鑫洋电热材料有限公司 | Mg-Cd intensified magnesium-based alloy and preparation method thereof |
-
2016
- 2016-08-17 CN CN201610681551.8A patent/CN106119646A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101652489A (en) * | 2007-04-03 | 2010-02-17 | 株式会社丰田自动织机 | Heat-resistant magnesium alloy |
| CN101530869A (en) * | 2008-03-14 | 2009-09-16 | 钱乐中 | Process for manufacturing stainless-steel seamless steel pipe used for high-pressure boiler, boiler and heat-exchanger |
| CN103334056A (en) * | 2013-03-25 | 2013-10-02 | 天津理工大学 | High-Cr ferritic heat-resistant steel used for thermal power boiler tube and applications thereof |
| CN104233032A (en) * | 2014-08-26 | 2014-12-24 | 盐城市鑫洋电热材料有限公司 | Mg-Cd intensified magnesium-based alloy and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 《化工百科全书》编辑委员会: "《化工百科全书》", 31 January 2001, 化学工业出版社 * |
| В.В.克雷莫夫: "《镁合金的定型铸造》", 31 August 1956, 国防工业出版社 * |
| 白素琴: "《金属学及热处理》", 31 July 2009, 冶金工业出版社 * |
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Application publication date: 20161116 |
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