CN1172016C - Rare-earth impeller - Google Patents
Rare-earth impeller Download PDFInfo
- Publication number
- CN1172016C CN1172016C CNB021492522A CN02149252A CN1172016C CN 1172016 C CN1172016 C CN 1172016C CN B021492522 A CNB021492522 A CN B021492522A CN 02149252 A CN02149252 A CN 02149252A CN 1172016 C CN1172016 C CN 1172016C
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- impeller
- silicon
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- rare
- earth
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Abstract
The present invention relates to a rare earth impeller used in the field of an oil immersed pump in an oilfield. The present invention solves the problem that the cost of the existing impeller is high. The present invention is characterized in that the rare earth impeller is composed of 2.40 to 3.40 wt% of carbon (C), 0.80 to 1.00 wt% of silicon (Si), 1.50 to 2.50 wt% of manganese (Mn), 4.00 to 6.00 wt% of aluminium (Al), 0.05 to 0.10 wt% of titanium (Ti), 0.05 to 0.10 wt% of rare earth (Re), 0.05 to 0.10 wt% of silicon-barium (Si-Ba) alloy and balance of ferrum (Fe). The present invention can save 45 to 50 % of nickel (Ni) and chromium (Cr), the cost is greatly reduced, the wear resistance and the corrosion resistance are unchanged, and the present invention is popular with users.
Description
Technical field:
The present invention relates to oilfield submersible pump field used a kind of blade guiding wheel, especially Rare-earth impeller.
Background technology:
Blade guiding wheel is most important parts on the oilfield submersible pump unit, be that well liquid is transmitted and be lifted to ground step by step, and usage quantity is many.And the blade guiding wheel that uses at present is because diameter is little, runner is narrow, blade is thin, mating surface is many, makes to have selected the good material making blade guiding wheel of wear-resisting corrosive nature for use, mainly selected the high nickel cast iron of 13.5～17.5% nickel, 1.5～3.5% chromium for use.But because nickel and chromium are the rare metals of China, the price comparison costliness causes the cost height of electric pump unit, and the general user is difficult to accept.
Summary of the invention:
In order to overcome the existing high deficiency of blade guiding wheel cost, the invention provides a kind of Rare-earth impeller, this blade guiding wheel can reduce cost greatly.
Adoptable technical scheme is: this low nickelalloy cast iron blade guiding wheel, comprise carbon C, silicon Si, manganese Mn, and be constructed as follows by weight percentage:
2.40～3.40% carbon C, 0.80～1.00% silicon Si, 1.50～2.50% manganese Mn, 4.00～6.00% aluminium Al, 0.05～0.10% titanium Ti, 0.05～0.10% rare earth Re, 0.05～0.10% silicon barium Si-Ba alloy and balance iron.
Therefore the beneficial effect of this blade guiding wheel is: because this blade guiding wheel has adopted the content of carbon C, manganese Mn than existing content 2.40～2.90% carbon C, 0.5～1.5% manganese Mn height; The content of silicon Si is lower than existing content 1.25～2.70% silicon Si, substitute nickel, chromium with aluminium Al, can save nickel, chromium, and cost but reduces greatly, can wear-resisting corrosive nature not change, and is subjected to the user and welcomes.
Embodiment:
Below with the present invention is further illustrated:
Should hang down nickelalloy cast iron blade guiding wheel, comprise carbon C, silicon Si, manganese Mn, be constructed as follows by weight percentage:
2.40～3.40% carbon C, 0.80～1.00% silicon Si, 1.50～2.50% manganese Mn, 4.00～6.00% aluminium Al, 0.05～0.10% titanium Ti, 0.05～0.10% rare earth Re, 0.05～0.10% silicon barium Si-Ba alloy and balance iron.
In this blade guiding wheel, aluminium is in order to improve the corrosion resistance nature of blade guiding wheel, and titanium is for intensity that improves blade guiding wheel and wear resisting property, and plasticity, the toughness of blade guiding wheel is had desirable influence, the adding of rare earth not only plays corrosion-resistant effect, and can improve mechanical property and purify crystal boundary; The raising of carbon content is in order to improve carbon concentration and undissolved graphite particulate in the molten iron, to help the graphite forming core.
Can take following three kinds of schemes to describe:
Embodiment 1: the Daqing oil field submersible electric pump is according to the blade guiding wheel of such scheme 1 process for processing, and tensile strength is 180N/mm, hardness 131HB, and cost has reduced by 45%, and non-environmental-pollution, corrosion-resistant coefficient are 0.044g/m
2Hr, average rate of weight loss is 5.27 * 10
-3, frictional coefficient is 0.0924, abrasion loss is 0.0081 gram, can wear-resisting corrosive nature meet index, and reduce labour intensity, has saved the energy, receives praises from customers.
Embodiment 2: the Daqing oil field submersible electric pump is according to the blade guiding wheel of such scheme 1 process for processing, and tensile strength is 192N/mm, and hardness 180HB, no magnetic, magnetic susceptibility be less than 2, remanent magnetism 3.1 Gausses, and cost has reduced by 47%, and non-environmental-pollution, corrosion-resistant coefficient are 0.0278g/m
2Hr, average rate of weight loss is 2.65 * 10
-3, frictional coefficient is 0.0959, abrasion loss is 0.0022 gram, can wear-resisting corrosive nature meet index, and reduce labour intensity, has saved the energy, receives praises from customers.
Embodiment 3: the Daqing oil field submersible electric pump is according to the blade guiding wheel of such scheme 1 process for processing, and tensile strength is 220N/mm, and hardness 205HB, no magnetic, magnetic susceptibility be less than 2, remanent magnetism 2.2 Gausses, and cost has reduced by 50%, and non-environmental-pollution, corrosion-resistant coefficient are 0.0392g/m
2Hr, average rate of weight loss is 4.53 * 10
-3, frictional coefficient is 0.0930, abrasion loss is 0.0040 gram, can wear-resisting corrosive nature meet index, and reduce labour intensity, has saved the energy, receives praises from customers.
Claims (1)
1, a kind of used Rare-earth impeller in oilfield submersible pump field that relates to comprises carbon C, silicon Si, manganese Mn, it is characterized in that: be constructed as follows by weight percentage:
2.40～3.40% carbon C, 0.80～1.00% silicon Si, 1.50～2.50% manganese Mn, 4.00～6.00% aluminium A1,0.05～0.10% titanium Ti, 0.05～0.10% rare earth Re, 0.05～0.10% silicon barium Si-Ba alloy and balance iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021492522A CN1172016C (en) | 2002-11-11 | 2002-11-11 | Rare-earth impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021492522A CN1172016C (en) | 2002-11-11 | 2002-11-11 | Rare-earth impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1405349A CN1405349A (en) | 2003-03-26 |
| CN1172016C true CN1172016C (en) | 2004-10-20 |
Family
ID=4751651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021492522A Expired - Fee Related CN1172016C (en) | 2002-11-11 | 2002-11-11 | Rare-earth impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1172016C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2002
- 2002-11-11 CN CNB021492522A patent/CN1172016C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1405349A (en) | 2003-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041020 Termination date: 20211111 |