RU2605719C2 - Powder material based on iron for stages of submersible centrifugal pumps - Google Patents

Powder material based on iron for stages of submersible centrifugal pumps Download PDF

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Publication number
RU2605719C2
RU2605719C2 RU2014122013/02A RU2014122013A RU2605719C2 RU 2605719 C2 RU2605719 C2 RU 2605719C2 RU 2014122013/02 A RU2014122013/02 A RU 2014122013/02A RU 2014122013 A RU2014122013 A RU 2014122013A RU 2605719 C2 RU2605719 C2 RU 2605719C2
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RU
Russia
Prior art keywords
iron
centrifugal pumps
stages
submersible centrifugal
powder material
Prior art date
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RU2014122013/02A
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Russian (ru)
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RU2014122013A (en
Inventor
Алексей Борисович Шипачёв
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"Центр Разработки Нефтедобывающего Оборудования" ("Црно")
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Priority to RU2014122013/02A priority Critical patent/RU2605719C2/en
Publication of RU2014122013A publication Critical patent/RU2014122013A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

FIELD: engines and pumps.
SUBSTANCE: invention relates to powder materials based on iron for stages of submersible centrifugal pumps. Material contains 0.08-0.95 wt% of carbon, 4.0-16.0 wt% of nickel, 0.8-5.6 wt% of molybdenum, 1.2-6.8 wt% of tungsten, 1.8-14.2 wt% of cobalt and iron - balance.
EFFECT: higher mechanical strength and corrosion resistance of material after ageing.
1 cl

Description

Изобретение относится к порошковой металлургии, в частности к порошковым материалам на основе железа, используемым для изготовления деталей, работающих в агрессивных средах, например ступеней (рабочих колес и направляющих аппаратов) погружных центробежных насосов для добычи нефти.The invention relates to powder metallurgy, in particular to iron-based powder materials used for the manufacture of parts operating in aggressive environments, for example, steps (impellers and guide vanes) of submersible centrifugal pumps for oil production.

Известен порошковый коррозионно- и износостойкий материал на основе железа, предназначенный для изготовления ступеней (рабочих колес и направляющих аппаратов) погружных центробежных насосов, содержащий углерод, никель, молибден и медь, введенную методом инфильтрации, при следующем соотношении компонентов, мас.%:Known powder corrosion-resistant and wear-resistant material based on iron, intended for the manufacture of steps (impellers and guides) of submersible centrifugal pumps containing carbon, nickel, molybdenum and copper, introduced by the method of infiltration, in the following ratio, wt.%:

- Углерод - 0-1,5- Carbon - 0-1.5

- Никель - 0,5-15,0- Nickel - 0.5-15.0

- Молибден - 0-2,5- Molybdenum - 0-2.5

- Медь - 10,0-20,0- Copper - 10.0-20.0

- Железо - Остальное- Iron - The rest

(см. патент РФ №2193115, МПК F04D 13/08, F04D 29/02, С22С 33/02, публ. 20.11.2002).(see RF patent No. 2193115, IPC F04D 13/08, F04D 29/02, C22C 33/02, publ. 20.11.2002).

Недостатком данного материала является то, что медь в таком количестве не образует гомогенного соединения с основным материалом - железом, в результате чего после спекания образуется гетерогенная структура, не обеспечивающая необходимой гидроабразивной износостойкости, при этом прочность и твердость поверхности получаемого материала существенно не улучшаются и после применения дополнительных физико-химических способов упрочнения.The disadvantage of this material is that copper in such an amount does not form a homogeneous compound with the main material - iron, as a result of which, after sintering, a heterogeneous structure is formed that does not provide the necessary hydroabrasive wear resistance, while the strength and surface hardness of the resulting material do not significantly improve after application additional physico-chemical methods of hardening.

Технический результат, на достижение которого направлено данное изобретение, заключается в возможности повышения механической прочности и коррозионной стойкости материала после старения, которое является наиболее экономичным способом дополнительной термообработки, обеспечивающим минимальный брак при этом процессе.The technical result to which this invention is directed is to increase the mechanical strength and corrosion resistance of the material after aging, which is the most economical way of additional heat treatment, ensuring minimal rejection in this process.

Указанный технический результат достигается тем, что порошковый материал на основе железа для ступеней погружных центробежных насосов, содержащий углерод, никель, молибден и вольфрам, дополнительно содержит кобальт при следующем соотношении компонентов, мас.%:The specified technical result is achieved in that the iron-based powder material for the stages of submersible centrifugal pumps, containing carbon, nickel, molybdenum and tungsten, additionally contains cobalt in the following ratio of components, wt.%:

- Углерод - 0,08-0,95- Carbon - 0.08-0.95

- Никель - 4,0-16,0- Nickel - 4.0-16.0

- Молибден - 0,8-5,6- Molybdenum - 0.8-5.6

- Вольфрам - 1,2-6,8- Tungsten - 1.2-6.8

- Кобальт - 1,8-14,2- Cobalt - 1.8-14.2

- Железо - Остальное.- Iron - The rest.

Claims (1)

Порошковый материал на основе железа для ступеней погружных центробежных насосов, содержащий углерод, никель и молибден, отличающийся тем, что он дополнительно содержит вольфрам и кобальт при следующем соотношении компонентов, мас.%:
Углерод 0,08-0,95 Никель 4,0-16,0 Молибден 0,8-5,6 Вольфрам 1,2-6,8 Кобальт 1,8-14,2 Железо Остальное
Iron-based powder material for steps of submersible centrifugal pumps containing carbon, nickel and molybdenum, characterized in that it additionally contains tungsten and cobalt in the following ratio of components, wt.%:
Carbon 0.08-0.95 Nickel 4.0-16.0 Molybdenum 0.8-5.6 Tungsten 1.2-6.8 Cobalt 1.8-14.2 Iron Rest
RU2014122013/02A 2014-05-30 2014-05-30 Powder material based on iron for stages of submersible centrifugal pumps RU2605719C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2014122013/02A RU2605719C2 (en) 2014-05-30 2014-05-30 Powder material based on iron for stages of submersible centrifugal pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2014122013/02A RU2605719C2 (en) 2014-05-30 2014-05-30 Powder material based on iron for stages of submersible centrifugal pumps

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RU2014122013A RU2014122013A (en) 2015-12-10
RU2605719C2 true RU2605719C2 (en) 2016-12-27

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017074215A1 (en) * 2015-10-30 2017-05-04 Центр Разработки Нефтедобывающего Оборудования Iron-based powder material for submersible centrifugal pump stages

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216015A (en) * 1979-04-09 1980-08-05 Cabot Corporation Wear-resistant iron-nickel-cobalt alloys
US4954171A (en) * 1987-09-30 1990-09-04 Kawasaki Steel Corp. Composite alloy steel powder and sintered alloy steel
WO1998050593A1 (en) * 1997-05-08 1998-11-12 Federal-Mogul Sintered Products Limited Method of forming a component by sintering an iron-based powder mixture
RU2180015C2 (en) * 2000-01-10 2002-02-27 Открытое акционерное общество "АВТОВАЗ" Powdery material for internal-combustion engine seat of valve making
RU2193115C2 (en) * 2000-10-12 2002-11-20 Рабинович Александр Исаакович Submersible pump stage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216015A (en) * 1979-04-09 1980-08-05 Cabot Corporation Wear-resistant iron-nickel-cobalt alloys
US4954171A (en) * 1987-09-30 1990-09-04 Kawasaki Steel Corp. Composite alloy steel powder and sintered alloy steel
WO1998050593A1 (en) * 1997-05-08 1998-11-12 Federal-Mogul Sintered Products Limited Method of forming a component by sintering an iron-based powder mixture
RU2180015C2 (en) * 2000-01-10 2002-02-27 Открытое акционерное общество "АВТОВАЗ" Powdery material for internal-combustion engine seat of valve making
RU2193115C2 (en) * 2000-10-12 2002-11-20 Рабинович Александр Исаакович Submersible pump stage

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Effective date: 20170531

NF4A Reinstatement of patent

Effective date: 20180202