CN105385962A - Inner frame of 35-megawatt air-cooling steam turbine - Google Patents
Inner frame of 35-megawatt air-cooling steam turbine Download PDFInfo
- Publication number
- CN105385962A CN105385962A CN201510944969.9A CN201510944969A CN105385962A CN 105385962 A CN105385962 A CN 105385962A CN 201510944969 A CN201510944969 A CN 201510944969A CN 105385962 A CN105385962 A CN 105385962A
- Authority
- CN
- China
- Prior art keywords
- alloy
- alloy material
- melt
- steam turbine
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
Abstract
The invention discloses an inner frame of a 35-megawatt air-cooling steam turbine. The inner frame comprises a metal main body made of an alloy material, wherein the alloy material consists of the following components in percentage by weight: 1-2% of B, 1.8% of P, 0.7% of Sb, 0.4% of Nd, 1.3% of Be, 0.9% of Sr and the balance of Fe and inevitable impurities. The alloy material is prepared by the following steps: 1) melting Fe, B, a Fe-P alloy and a Fe-Sb alloy under protective atmosphere; 2) regulating a temperature to 910 DEG C, adding a Fe-Nd alloy, a Fe-Be alloy and a Fe-Sr alloy into melt, uniformly stirring, preserving the temperature and stewing for 21 minutes; and 3) introducing argon gas, stewing and cooling the melt to a temperature of 610 DEG C, and carrying out pressure casting to form an alloy material. The inner frame of the 35-megawatt air-cooling steam turbine has excellent performances such as high strength, corrosion resistance, heat resistance and the like, and can be used for a long time.
Description
Technical field
The present invention relates to 350,000 kilowatts of air-cooled steam turbine inner cages.
Background technology
Internal combustion turbine is the generating set of widespread use, the environment for use more complicated of internal combustion turbine, all higher to the weight of all parts of internal combustion turbine, intensity, abrasion-resistant, requirement that is corrosion-resistant, resistance toheat.
Summary of the invention
The object of the present invention is to provide a kind of 350,000 kilowatts of air-cooled steam turbine inner cages, it is lightweight, intensity is high, abrasion-resistant, corrosion-resistant, Good Heat-resistance, can life-time service.
For achieving the above object, technical scheme of the present invention is a kind of 350,000 kilowatts of air-cooled steam turbine inner cages of design, and comprise metal master, described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：1～2％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
Preferably, 350,000 kilowatts of air-cooled steam turbine inner cages, comprise metal master, and described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：1％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
Preferably, 350,000 kilowatts of air-cooled steam turbine inner cages, comprise metal master, and described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：2％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
Advantage of the present invention and beneficial effect are: provide a kind of 350,000 kilowatts of air-cooled steam turbine inner cages, it is lightweight, intensity is high, abrasion-resistant, corrosion-resistant, Good Heat-resistance, can life-time service.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The technical scheme that the present invention specifically implements is:
Embodiment 1
A kind of 350,000 kilowatts of air-cooled steam turbine inner cages, comprise metal master, described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：1～2％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
Embodiment 2
350000 kilowatts of air-cooled steam turbine inner cages, comprise metal master, and described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：1％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
Embodiment 3
350000 kilowatts of air-cooled steam turbine inner cages, comprise metal master, and described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：2％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1.35 ten thousand kilowatts of air-cooled steam turbine inner cages, it is characterized in that, comprise metal master, described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：1～2％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
2. 350,000 kilowatts of air-cooled steam turbine inner cages according to claim 1, it is characterized in that, comprise metal master, described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：1％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
3. 350,000 kilowatts of air-cooled steam turbine inner cages according to claim 1, it is characterized in that, comprise metal master, described metal master is made up of alloy material, and by weight percentage, the composition of this alloy material is:
B：2％，
P：1.8％，
Sb：0.7％，
Nd：0.4％，
Be：1.3％，
Sr：0.9％，
Surplus is Fe and inevitable impurity;
Described alloy material is prepared as follows:
1) by Fe, B and Fe-P alloy, the melting under protective atmosphere of Fe-Sb alloy;
2) temperature is adjusted to 910 DEG C, adds Fe-Nd alloy, Fe-Be alloy and Fe-Sr alloy, stir in melt, and insulation leaves standstill 21 minutes;
3) pass into argon gas, left standstill by melt and be cooled to 610 DEG C, die casting obtains alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944969.9A CN105385962A (en) | 2015-12-16 | 2015-12-16 | Inner frame of 35-megawatt air-cooling steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944969.9A CN105385962A (en) | 2015-12-16 | 2015-12-16 | Inner frame of 35-megawatt air-cooling steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105385962A true CN105385962A (en) | 2016-03-09 |
Family
ID=55418727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510944969.9A Pending CN105385962A (en) | 2015-12-16 | 2015-12-16 | Inner frame of 35-megawatt air-cooling steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105385962A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636515A (en) * | 2007-03-20 | 2010-01-27 | Nec东金株式会社 | Soft magnetic alloy, magnetic component using the same, and their production methods |
| CN102209798A (en) * | 2009-05-22 | 2011-10-05 | 新日本制铁株式会社 | Steel for machine structure use attaining excellent cutting-tool life and method for cutting same |
| CN103779035A (en) * | 2012-10-17 | 2014-05-07 | 信越化学工业株式会社 | Rare earth sintered magnet and making method |
| CN104159680A (en) * | 2012-03-06 | 2014-11-19 | 杰富意钢铁株式会社 | Warm press forming method and automobile frame component |
-
2015
- 2015-12-16 CN CN201510944969.9A patent/CN105385962A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636515A (en) * | 2007-03-20 | 2010-01-27 | Nec东金株式会社 | Soft magnetic alloy, magnetic component using the same, and their production methods |
| CN102209798A (en) * | 2009-05-22 | 2011-10-05 | 新日本制铁株式会社 | Steel for machine structure use attaining excellent cutting-tool life and method for cutting same |
| CN104159680A (en) * | 2012-03-06 | 2014-11-19 | 杰富意钢铁株式会社 | Warm press forming method and automobile frame component |
| CN103779035A (en) * | 2012-10-17 | 2014-05-07 | 信越化学工业株式会社 | Rare earth sintered magnet and making method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104404301A (en) | Direct-drive fixed shaft for wind-driven generator | |
| CN104404303A (en) | Direct-drive rotating shaft for wind-driven generator | |
| CN104388755A (en) | Wind generator stator frame | |
| CN105385962A (en) | Inner frame of 35-megawatt air-cooling steam turbine | |
| CN104451258A (en) | Wind driven generator stator | |
| CN105349917A (en) | Oil slinger for wire rod mill | |
| CN105543650A (en) | Outer turbine base of 150000 KW air-cooling steam turbine | |
| CN105385945A (en) | Power turbine guide vane of gas turbine | |
| CN104455943A (en) | Anti-explosion gas turbine housing | |
| CN105543692A (en) | Housing of gas turbine | |
| CN105349912A (en) | Bearing seat for combustion turbine | |
| CN105543643A (en) | Outer machine base of gas turbine | |
| CN105369162A (en) | Anti-explosion gas turbine housing | |
| CN105441812A (en) | Internal engine base of gas turbine | |
| CN105525128A (en) | Mining high-pressure nozzle | |
| CN105463323A (en) | Low-pressure internal air cylinder of gas turbine | |
| CN105369141A (en) | Gas compressor bearing block of gas turbine | |
| CN104454040A (en) | 350,000 KW air-cooling steam turbine internal machine base | |
| CN105568181A (en) | Wind generating set cabin seat | |
| CN104451305A (en) | Compressor bearing seat of gas turbine | |
| CN105385881A (en) | File cabinet | |
| CN104451308A (en) | Outer frame of gas engine | |
| CN105543719A (en) | Direct drive type fixed shaft for wind-driven generator | |
| CN105543698A (en) | Rotor structure of direct drive type wind generating set | |
| CN104404304A (en) | Wind-driven generator rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160309 |