CN103451513A - Vane guide wheel low temperature resistant nickelic austenite cast iron - Google Patents
Vane guide wheel low temperature resistant nickelic austenite cast iron Download PDFInfo
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- CN103451513A CN103451513A CN2013104491949A CN201310449194A CN103451513A CN 103451513 A CN103451513 A CN 103451513A CN 2013104491949 A CN2013104491949 A CN 2013104491949A CN 201310449194 A CN201310449194 A CN 201310449194A CN 103451513 A CN103451513 A CN 103451513A
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Abstract
The invention relates to alloy cast iron materials and application thereof, in particular to vane guide wheel low temperature resistant nickelic austenite cast iron, and belongs to the technical field of alloy materials. The vane guide wheel low temperature resistant nickelic austenite cast iron comprises, by weight, 2.6%-3.0% of C, 1.2%-1.9% of Si, 0.85%-1.5% of Mn, 2.0%-3.0% of Cr, 14%-17% of Ni, 5%-8% of Cu, smaller than 0.03% of S, smaller than 0.04% of P, and the balance Fe. The cast iron material is used for manufacturing vane guide wheels, the rate of cast finished products is higher than 90%, the vane guide wheel low temperature resistant nickelic austenite cast iron can still work normally under the ultralow temperature environment of -60 DEG C, and the cold-resistant performance is outstanding.
Description
Technical field
The present invention relates to alloy cast iron material and application thereof, be specifically related to the low temperature resistant high-nickel austenitic cast iron of a kind of blade guiding wheel, belong to technical field of alloy material.
Background technology
In numerous oil drilling and extracting equipments, submersible electric pump is essential, and its discharge capacity, pump efficiency, erosion resistance, work-ing life etc. are mainly determined by blade guiding wheel, the submersible electric pump blade guiding wheel material of domestic and international big-and-middle-sized drilling-production equipment is all to take the high-nickel austenite nodular cast iron as main at present, be mainly because high-nickel austenite nodular cast iron possesses excellent thermal-shock resistance, heat resistanceheat resistant creep properties, solidity to corrosion, high-temperature oxidation resistance and low thermal expansivity and low-temperature impact toughness, be widely used in the manufacture of submersible electric pump blade guiding wheel at home and abroad.
Sustainable development along with Global Oil drilling industry, can be day by day rare for oil field and the oil well of drilling, oil field or the oil well of particularly being convenient to drilling are fewer and feweri, the oil needs that increase in order to meet the whole world, modern petroleum drilling and mining industry is actively to developing such as the drilling difficulty such as deep-sea drilling and the severe oil well of operating environment, the very low temperature operating environment occurs now and then, and take NI-RESIST TYPE 1 trade mark as main for the manufacture of the high-nickel austenite nodular cast iron of submersible electric pump blade guiding wheel at present, under conventional environment, metallographic forms and every good mechanical performance, but for the low temperature environment below-60 ℃, austenitic structure in structure, the nodularization rate changes, Main Mechanical is as tensile strength, the performances such as impelling strength have decline in various degree, can not meet the operation needs under ultra-low temperature surroundings.
Summary of the invention
The deficiency existed for prior art, the invention provides the low temperature resistant high-nickel austenitic cast iron of a kind of blade guiding wheel, there is good winter hardiness, in the ultra-low temperature surroundings of-60 ℃ and conventional environment, all keep good every mechanical property, be applied in the submersible electric pump blade guiding wheel, can meet under-60 ℃ of ultra-low temperature surroundings and work.
In order to realize above purpose, the present invention is by the following technical solutions: on the high-nickel austenitic cast iron material prescription basis of the submersible electric pump blade guiding wheel used at conventional environment (working temperature-4 ℃ to 160 ℃), delete choosing by the identification to each component function of cast iron materials, different material prescriptions is set, utilize middle frequency furnace to carry out melting, then casting is produced blade guiding wheel, and the blade guiding wheel qualified casting is controlled at more than 90%, meets the needs of mass production; Simultaneously, product is carried out the test of tensile strength, surging force and these salient featuress of hardness under conventional environment and ultra-low temperature surroundings, optimize the best materials formula that can keep excellent corrosion resistance, impelling strength, tensile strength and hardness under conventional environment and ultra-low temperature surroundings.
According to the difference of each elementary composition to material structure and performance impact in blade guiding wheel high-nickel austenitic cast iron material, blade guiding wheel NI-RESIST TYPE 1 trade mark high-nickel austenitic cast iron material used under conventional environment, wherein Ni is outstanding to the corrosion resistance nature effect of material, Ni content 13%-18%, Mn and Cr Main Function are to make the austenite in material stable, but be also very strong formation carbide element, Mn content 0.5-1.5%, Cr content 1.5%-2.5%; C is the principal element in cast iron materials, directly affects the size of carbon equivalent, C content 2.0%-3%, and in Hui Kou (ball milling) cast iron, in order to guarantee that spoken parts in traditional operas does not appear in material, the setting range of carbon should be very not large; Si is the strongest graphite element, favourable to the thermotolerance of material, and Si plays a very important role to the liquid molding of cast iron materials simultaneously, Si content 2.0 %-2.8%, and Cu is relevant to austenitic stability and solidity to corrosion in material, Cu content 5.0%-7.0%; S, P are harmful element in cast iron, more low better, S content<0.03%, P content<0.04%.
The present invention is in conjunction with under the ultra-low temperature surroundings of-60 ℃, mechanical property and technical indicator that the blade guiding wheel normal operation needs, the blade guiding wheel high-nickel austenitic cast iron material prescription used under conventional environment is optimized to innovation, due to Ni, Mn, Si, the thermal expansivity of the content of Cu and high-nickel austenitic cast iron material is closely bound up, directly affect the thermal conduction of cast iron materials, show that through test thermal expansivity improves along with the increase of Si content, along with the increase of Ni content, diminish, the variation of Mn and Cu content is little on the impact of thermal expansivity, and when thermal expansivity is high, erosion resistance and the oxidation-resistance of material are low, when thermal expansivity is low, erosion resistance and oxidation-resistance are just high, Mn and Cu content, temperature sensitivity is low, and the cast iron materials properties changes little.
The present invention is through repetition test demonstration, the low temperature resistant high-nickel austenitic cast iron of a kind of blade guiding wheel of developing, main formula form and the main performance index that is applied to blade guiding wheel processing as shown in Table 1:
Table one
Produce following useful effect after the employing the technical program: the low temperature resistant high-nickel austenitic cast iron of a kind of blade guiding wheel provided by the invention, there is good resistance to low temperature, under the ultra-low temperature surroundings of-60 ℃, parameters index under every mechanical property and blade guiding wheel product index and conventional environment is more or less the same, and can finely meet under-60 ℃ of ultra-low temperature surroundings and works.
Embodiment
The embodiment of the present invention provides a kind of blade guiding wheel low temperature resistant high-nickel austenitic cast iron, there is good winter hardiness, in the ultra-low temperature surroundings of-60 ℃ and conventional environment, all demonstrate good mechanical property, can meet the submersible electric pump blade guiding wheel worked under ℃ ultra-low temperature surroundings of casting processing-60.
In the present embodiment, according to the difference of each elementary composition to material structure and performance impact in blade guiding wheel high-nickel austenitic cast iron material, following material prescription: C:2.6% is set, Si:1.6%, Mn:1.1%, Cr:2.0%, Ni:15%, Cu:5.5%, Fe:72.2%, measure corresponding component, pass through the main frequency furnace melting according to melting technology, and vacuum pouring is shaped to blade guiding wheel, the casting yield rate of product is 92.4%, product is in the temperature range of-60 ℃ to 160 ℃, take 20 ℃ as the test benchmark point,-60 ℃,-40 ℃,-20 ℃, 0 ℃, 20 ℃, 60 ℃, 100 ℃, ballistic work under 140 ℃ and 160 ℃ of condition of different temperatures, the velocity of variation of tensile strength and hardness is-4 ‰ to 3 ‰, the every main mechanical index not obviously impact of temperature variation on blade guiding wheel, blade guiding wheel can work under the condition of different temperatures of-60 ℃ to 160 ℃, meet the submersible electric pump requirements of one's work.
The present embodiment, only for the present invention's use is described, is not that those skilled in the art can also make corresponding distortion and modification in essential scope of the present invention to the restriction of invention, and the embodiment be equal to so any belongs to category of the present invention.
Claims (2)
1. the low temperature resistant high-nickel austenitic cast iron of blade guiding wheel is characterized in that: adjusting by weight percentage its formula formation situation C:2.6%-3.0%, Si:1.2%-1.9%, Mn:0.85%-1.5%, Cr:2.0%-3.0%, Ni:14%-17%, Cu:5%-8%, S<0.03%, P<0.04%, Fe is surplus.
2. the low temperature resistant high-nickel austenitic cast iron of a kind of blade guiding wheel according to claim 1, is characterized in that: apply the submersible electric pump blade guiding wheel of this material casting, also can work under-60 ℃ of ultra-low temperature surroundings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104491949A CN103451513A (en) | 2013-09-27 | 2013-09-27 | Vane guide wheel low temperature resistant nickelic austenite cast iron |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104491949A CN103451513A (en) | 2013-09-27 | 2013-09-27 | Vane guide wheel low temperature resistant nickelic austenite cast iron |
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| CN103451513A true CN103451513A (en) | 2013-12-18 |
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| CN2013104491949A Pending CN103451513A (en) | 2013-09-27 | 2013-09-27 | Vane guide wheel low temperature resistant nickelic austenite cast iron |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112791A (en) * | 2015-09-21 | 2015-12-02 | 无锡清杨机械制造有限公司 | Novel metallic material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5348016A (en) * | 1976-10-14 | 1978-05-01 | Goetzewerke | Austenitic alloyed cast iron and mechanical parts exposed to abrasion |
| CN101418411A (en) * | 2007-10-25 | 2009-04-29 | 浙江振兴石化机械有限公司 | Low nickel cast iron and preparation method thereof and use thereof in impeller |
| CN103184951A (en) * | 2011-12-29 | 2013-07-03 | 安徽省恒泰动力科技有限公司 | Piston for medium-sized heavy-load diesel engine and manufacture method thereof |
| CN103233912A (en) * | 2013-05-10 | 2013-08-07 | 天津市芦台精密铸造有限公司 | Low-temperature impeller and idler pulley of oil submersible pump |
-
2013
- 2013-09-27 CN CN2013104491949A patent/CN103451513A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5348016A (en) * | 1976-10-14 | 1978-05-01 | Goetzewerke | Austenitic alloyed cast iron and mechanical parts exposed to abrasion |
| CN101418411A (en) * | 2007-10-25 | 2009-04-29 | 浙江振兴石化机械有限公司 | Low nickel cast iron and preparation method thereof and use thereof in impeller |
| CN103184951A (en) * | 2011-12-29 | 2013-07-03 | 安徽省恒泰动力科技有限公司 | Piston for medium-sized heavy-load diesel engine and manufacture method thereof |
| CN103233912A (en) * | 2013-05-10 | 2013-08-07 | 天津市芦台精密铸造有限公司 | Low-temperature impeller and idler pulley of oil submersible pump |
Non-Patent Citations (1)
| Title |
|---|
| 上海市铸造协会: "《国际及国外铸造标准汇编》", 31 March 1985, article "奥氏体灰口铸铁", pages: 99 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112791A (en) * | 2015-09-21 | 2015-12-02 | 无锡清杨机械制造有限公司 | Novel metallic material and preparation method thereof |
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Application publication date: 20131218 |