CN103572153A - Ductile cast iron alloy with high temperature performance - Google Patents
Ductile cast iron alloy with high temperature performance Download PDFInfo
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- CN103572153A CN103572153A CN201310538660.0A CN201310538660A CN103572153A CN 103572153 A CN103572153 A CN 103572153A CN 201310538660 A CN201310538660 A CN 201310538660A CN 103572153 A CN103572153 A CN 103572153A
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- cast iron
- iron alloy
- ductile cast
- high temperature
- alloy
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- Supercharger (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a ductile cast iron alloy with high temperature performance. The ductile cast iron alloy comprises the following components by weight percent: 3.1-3.5% of carbon, 1.75-2.0% of silicon, 0.5-0.8% of molybdenum, 0.05-0.15% of manganese, 0.01-0.03% of chromium, 0.03-0.05% of zirconium, 0.001-0.003% of yttrium and the balance of iron and inevitable impurities. The alloy is well suitable for forming industrial gas turbines, especially gas turbines with compressor shells enduring 400 DEG C and higher operating temperatures.
Description
Technical field
The invention belongs to nodular cast iron alloy field, specifically refer to a kind of nodular cast iron alloy with high-temperature behavior.
Background technology
Compressor outlet shell is generally located close to downstream, gas turbine compressor ground, and compressor case is also further connected with compressor outlet shell in downstream and by the first step of turbine part.Due to the high pressure maintaining between compressor and turbine portion are divided and the temperature of rising, the alloy that is applicable to compressor outlet shell and compressor case needs good creep, fracture, stretching, anti-fatigue performance.
The studied various structural applications for turbomachinery and other occasion of existing nodular cast iron alloy, for obtaining the more high strength under high operating temperature, known more substantial silicon, the nodular cast iron alloy of molybdenum combination of containing.Yet existing these alloys show the machinability of the ductility of reduction, the Castability of reduction and reduction at ambient temperature.
Summary of the invention
The object of this invention is to provide a kind of nodular cast iron alloy with high-temperature behavior, reduce the usage quantity of molybdenum and can significantly improve the high-temperature behavior of alloy.
The present invention is achieved by the following technical solutions:
A kind of nodular cast iron alloy with high-temperature behavior, its composition is by weight percentage, the carbon of 3.1-3.5%, the silicon of 1.75-2.0%, the molybdenum of 0.5-0.8%, the chromium of the manganese of 0.05-0.15%, 0.01-0.03%, the yttrium of the zirconium of 0.03-0.05%, 0.001-0.003% and the iron of surplus and inevitably impurity.
The invention has the beneficial effects as follows:
This alloy is applicable to form the gas turbine that industrial gasses turbine, particularly its compressor case stand 400 ℃ and higher working temperature well.
Embodiment
A kind of nodular cast iron alloy with high-temperature behavior, its composition is by weight percentage, the carbon of 3.1-3.5%, the silicon of 1.75-2.0%, the molybdenum of 0.5-0.8%, the chromium of the manganese of 0.05-0.15%, 0.01-0.03%, the yttrium of the zirconium of 0.03-0.05%, 0.001-0.003% and the iron of surplus and inevitably impurity.
For optimizing mechanical property, this alloy should be through Overheating Treatment to remove carbide and/or stabilizing pearlite.
Embodiment 1
A kind of nodular cast iron alloy with high-temperature behavior, its composition is by weight percentage, the iron of 3.5% carbon, 2.0% silicon, 0.8% molybdenum, 0.15% manganese, 0.03% chromium, 0.05% zirconium, 0.003% yttrium and surplus and inevitably impurity.
Embodiment 2
A kind of nodular cast iron alloy with high-temperature behavior, its composition is by weight percentage, the iron of 3.1% carbon, 1.75% silicon, 0.5% molybdenum, 0.05% manganese, 0.01% chromium, 0.03% zirconium, 0.001% yttrium and surplus and inevitably impurity.
Embodiment 3
A kind of nodular cast iron alloy with high-temperature behavior, its composition is by weight percentage, the iron of 3.3% carbon, 1.8% silicon, 0.65% molybdenum, 0.12% manganese, 0.015% chromium, 0.04% zirconium, 0.0015% yttrium and surplus and inevitably impurity.
Claims (1)
1. a nodular cast iron alloy with high-temperature behavior, it is characterized in that: its composition is by weight percentage the carbon of 3.1-3.5%, the silicon of 1.75-2.0%, the molybdenum of 0.5-0.8%, the chromium of the manganese of 0.05-0.15%, 0.01-0.03%, the yttrium of the zirconium of 0.03-0.05%, 0.001-0.003% and the iron of surplus and inevitably impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538660.0A CN103572153A (en) | 2013-11-04 | 2013-11-04 | Ductile cast iron alloy with high temperature performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538660.0A CN103572153A (en) | 2013-11-04 | 2013-11-04 | Ductile cast iron alloy with high temperature performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103572153A true CN103572153A (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310538660.0A Pending CN103572153A (en) | 2013-11-04 | 2013-11-04 | Ductile cast iron alloy with high temperature performance |
Country Status (1)
| Country | Link |
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| CN (1) | CN103572153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354369A (en) * | 2017-06-20 | 2017-11-17 | 哈尔滨汽轮机厂有限责任公司 | A kind of spheroidal graphite cast-iron containing molybdenum used under 500 DEG C of high temperature and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528338A (en) * | 1978-08-16 | 1980-02-28 | Kubota Ltd | Manufacture of roll |
| US4421558A (en) * | 1980-01-10 | 1983-12-20 | Kubota Ltd. | Iron-based heat-resistant cast alloy |
| SU1154366A1 (en) * | 1984-02-27 | 1985-05-07 | Могилевское Отделение Физико-Технического Института Ан Бсср | High-strength cast-iron |
| JPS60247036A (en) * | 1984-05-22 | 1985-12-06 | Mitsui Eng & Shipbuild Co Ltd | Cv-cast iron cylinder liner |
| CN1789465A (en) * | 2004-12-17 | 2006-06-21 | 通用电气公司 | Nodular cast iron and turbo compressor crust component formated by said iron |
| CN102234734A (en) * | 2010-04-23 | 2011-11-09 | 成都三强轧辊股份有限公司 | Production process of modified alloy ball iron roller |
| CN102717035A (en) * | 2012-07-09 | 2012-10-10 | 江苏多为泵业股份有限公司 | Low Si-Mg ratio and low RE-Mg nodularizer |
| CN103194664A (en) * | 2013-04-03 | 2013-07-10 | 山东汇丰铸造科技股份有限公司 | High-strength high-toughness winch nodular cast iron winding drum and casting method thereof |
-
2013
- 2013-11-04 CN CN201310538660.0A patent/CN103572153A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528338A (en) * | 1978-08-16 | 1980-02-28 | Kubota Ltd | Manufacture of roll |
| US4421558A (en) * | 1980-01-10 | 1983-12-20 | Kubota Ltd. | Iron-based heat-resistant cast alloy |
| SU1154366A1 (en) * | 1984-02-27 | 1985-05-07 | Могилевское Отделение Физико-Технического Института Ан Бсср | High-strength cast-iron |
| JPS60247036A (en) * | 1984-05-22 | 1985-12-06 | Mitsui Eng & Shipbuild Co Ltd | Cv-cast iron cylinder liner |
| CN1789465A (en) * | 2004-12-17 | 2006-06-21 | 通用电气公司 | Nodular cast iron and turbo compressor crust component formated by said iron |
| CN102234734A (en) * | 2010-04-23 | 2011-11-09 | 成都三强轧辊股份有限公司 | Production process of modified alloy ball iron roller |
| CN102717035A (en) * | 2012-07-09 | 2012-10-10 | 江苏多为泵业股份有限公司 | Low Si-Mg ratio and low RE-Mg nodularizer |
| CN103194664A (en) * | 2013-04-03 | 2013-07-10 | 山东汇丰铸造科技股份有限公司 | High-strength high-toughness winch nodular cast iron winding drum and casting method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354369A (en) * | 2017-06-20 | 2017-11-17 | 哈尔滨汽轮机厂有限责任公司 | A kind of spheroidal graphite cast-iron containing molybdenum used under 500 DEG C of high temperature and preparation method thereof |
| CN107354369B (en) * | 2017-06-20 | 2019-04-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of spheroidal graphite cast-iron containing molybdenum and preparation method thereof used under 500 DEG C of high temperature |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |