RU2017122077A - COMPOSITION OF A CARBURIZER FOR CEMENTING PARTS FROM LOW CARBON STEEL - Google Patents

COMPOSITION OF A CARBURIZER FOR CEMENTING PARTS FROM LOW CARBON STEEL Download PDF

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Publication number
RU2017122077A
RU2017122077A RU2017122077A RU2017122077A RU2017122077A RU 2017122077 A RU2017122077 A RU 2017122077A RU 2017122077 A RU2017122077 A RU 2017122077A RU 2017122077 A RU2017122077 A RU 2017122077A RU 2017122077 A RU2017122077 A RU 2017122077A
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RU
Russia
Prior art keywords
carbon
temperature
mass
iron
hardening
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RU2017122077A
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Russian (ru)
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RU2690630C2 (en
RU2017122077A3 (en
Inventor
Михаил Владимирович Чучкалов
Артур Рифович Галикеев
Сергей Владимирович Китаев
Аида Рубэновна Гадельшина
Original Assignee
Общество с ограниченной ответственностью "Газпром трансгаз Уфа"
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Priority to RU2017122077A priority Critical patent/RU2690630C2/en
Publication of RU2017122077A publication Critical patent/RU2017122077A/en
Publication of RU2017122077A3 publication Critical patent/RU2017122077A3/ru
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Publication of RU2690630C2 publication Critical patent/RU2690630C2/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C23C8/64—Carburising
    • C23C8/66—Carburising of ferrous surfaces

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Claims (2)

1. Состав карбюризатора для цементации изделий из низкоуглеродистой стали, содержащий в масс. %: чугунную стружку со средним размером гранул 0,5 мм - 10, карбонат бария ВаСО3 - 10 и углеродное вещество - 80, отличающийся тем, что углеродное вещество, состоящее из, в масс. %: аморфного углерода - 96,2, кристаллического углерода - 2,85, железа - 0,94 и водорода - 0,01, получено термокаталитическим пиролизом газового конденсата, отобранного с конденсатосборника газораспределительной станции, в условиях контакта с железооксидным катализатором Fe2O3 при температуре 550°C, объемной скорости подачи сырья 30 мл/мин, в течение 5 ч, с последующим отсевом фракции 50-150 мкм путем фракционирования образовавшейся массы на молекулярных ситах, при этом цементацию проводят при 900°C в течение 7 ч, после цементации осуществляют охлаждение изделий до 100°C и двойную закалку, включающую проведение первой закалки при температуре 820°C, а второй закалки - при температуре 770°C, после которой проводят низкий отпуск при температуре 150°C.1. The composition of the carburetor for cementing products from low carbon steel, containing in mass. %: cast iron shavings with an average granule size of 0.5 mm - 10, barium carbonate BaCO 3 - 10 and a carbon substance - 80, characterized in that the carbon substance consisting of, in mass. %: amorphous carbon — 96.2, crystalline carbon — 2.85, iron — 0.94, and hydrogen — 0.01, obtained by thermocatalytic pyrolysis of gas condensate taken from a condensate collector of a gas distribution station under contact with Fe 2 O 3 iron oxide catalyst at a temperature of 550 ° C, a volumetric feed rate of 30 ml / min, for 5 hours, followed by a screening of a fraction of 50-150 μm by fractionation of the resulting mass on molecular sieves, while cementation is carried out at 900 ° C for 7 hours, after grouting carry out cooling from divisions up to 100 ° C and double hardening, including the first hardening at a temperature of 820 ° C, and the second hardening at a temperature of 770 ° C, after which a low tempering is carried out at a temperature of 150 ° C. 2. Углеродное вещество, состоящее из, в масс. %: аморфного углерода - 95,6, кристаллического углерода - 3,40, железа - 0,99 и водорода - 0,01, получено термокаталитическим пиролизом газового конденсата, отобранного с вихревого газодинамического сепаратора головного газораспределительного пункта.2. Carbon substance consisting of, in mass. %: amorphous carbon - 95.6, crystalline carbon - 3.40, iron - 0.99 and hydrogen - 0.01, obtained by thermocatalytic pyrolysis of gas condensate taken from a vortex gas-dynamic separator of the head gas distribution point.
RU2017122077A 2017-06-22 2017-06-22 Carburizer composition for carburizing parts from low-carbon steel RU2690630C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2017122077A RU2690630C2 (en) 2017-06-22 2017-06-22 Carburizer composition for carburizing parts from low-carbon steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2017122077A RU2690630C2 (en) 2017-06-22 2017-06-22 Carburizer composition for carburizing parts from low-carbon steel

Publications (3)

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RU2017122077A true RU2017122077A (en) 2018-12-24
RU2017122077A3 RU2017122077A3 (en) 2019-04-26
RU2690630C2 RU2690630C2 (en) 2019-06-04

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RU2017122077A RU2690630C2 (en) 2017-06-22 2017-06-22 Carburizer composition for carburizing parts from low-carbon steel

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2728333C1 (en) * 2020-02-11 2020-07-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Курский государственный университет" Method for cementing parts from structural and tool steels

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU679154A3 (en) * 1974-06-17 1979-08-05 Мицубиси Дзюкогио Кабусики Кайся (Фирма) Metal chemical heat treatment method
WO2010091397A2 (en) * 2009-02-09 2010-08-12 Board Of Regents, The University Of Texas System Protective carbon coatings
RU2553107C2 (en) * 2013-10-23 2015-06-10 Общество с ограниченной ответственностью "Газпром трансгаз Уфа" Strengthening method of items from low-carbon steel
RU2561552C2 (en) * 2013-12-11 2015-08-27 Общество с ограниченной ответственностью "Газпром трансгаз Уфа" Carboniser for carbonisation of low carbon steel items

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RU2690630C2 (en) 2019-06-04
RU2017122077A3 (en) 2019-04-26

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