SU773139A1 - Mixture composition for bath of low-temperature nitrocarburization of steel articles - Google Patents

Mixture composition for bath of low-temperature nitrocarburization of steel articles Download PDF

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Publication number
SU773139A1
SU773139A1 SU752171264A SU2171264A SU773139A1 SU 773139 A1 SU773139 A1 SU 773139A1 SU 752171264 A SU752171264 A SU 752171264A SU 2171264 A SU2171264 A SU 2171264A SU 773139 A1 SU773139 A1 SU 773139A1
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SU
USSR - Soviet Union
Prior art keywords
bath
low
temperature
nitrocarburization
fact
Prior art date
Application number
SU752171264A
Other languages
Russian (ru)
Inventor
Дмитрий Антонович Прокошкин
Леонид Михайлович Терещенко
Николай Алексеевич Соколов
Альберт Павлович Степанов
Нина Никифоровна Виноградова
Александр Михайлович Богомолов
Мария Александровна Широкова
Original Assignee
Московское Ордена Ленина И Ордена Трудового Красного Знамени Высшее Техническое Училище Им.Н.Э.Баумана
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Priority to SU752171264A priority Critical patent/SU773139A1/en
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Publication of SU773139A1 publication Critical patent/SU773139A1/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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/52—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 liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
    • C23C8/54—Carbo-nitriding
    • C23C8/56—Carbo-nitriding 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)
  • Heat Treatment Of Articles (AREA)

Description

карбонитридной фазы твердостью Н/ц 1500 кг/мм. Это обеспечивает повышение стойкости при работе инструмента в 1,5-2 раза.carbonitride phase hardness N / c 1500 kg / mm. This provides increased durability when the tool is 1.5-2 times.

2. Провод т обработку деталей из легированных, конструкционных марок стали при 570 С с выдержкой 2 и 6 ч.2. Conduct machining of parts from alloyed, structural steel grades at 570 ° C with an exposure of 2 and 6 hours

Это обеспечивает получение на поверхности диффузионный слой карбонитридной фазы с твердостью Hfy 900 - 1050 кг/мм. Карбонитридна  фаза проно св зана с- лежащей под ней гетерофаэной зоной, имеющей твердость H|u 800 кг/мм постепенно снижающуюс  по мере продвижени  вглубь к сердцевине исходной стали.This ensures that the diffusion layer of the carbonitride phase with a hardness of Hfy 900 is 1050 kg / mm on the surface. The carbonitride phase is bonded with a heterophaenous zone underneath, having a hardness H | u of 800 kg / mm gradually decreasing as it goes deeper into the core of the original steel.

Предлагаемый состав позвол ет ускорить процесс насыщени  при использовании в 1,5-2 раза.The proposed composition allows to accelerate the saturation process when used 1.5-2 times.

Таблица 1Table 1

Таблица 2table 2

Не полное Полное То жеNot full Full Same

Claims (4)

Не полное Формула изобретени  1.Состав смеси дл  ванны низкотемпературной нитроцементации стальных изделий, содержащий карбонат кали , отличающийс  тем, что, с целью интенсификации и упрощени  процесса, он дополнительно содержит цианамиды при следующем .соотношении компонентов, вес.%: Карбонат Ксши  50-85 Цианамиды15-50 Not complete claims 1. The composition of the mixture for a bath of low-temperature carbonitriding steel products containing potassium carbonate, characterized in that, in order to intensify and simplify the process, it additionally contains cyanamides at the following ratio of components, wt.%: Kssi carbonate 50-85 Cyanamides15-50 2.Состав по п. 1, отличаю.щ и и с   тем, что в качестве цианамидов используют дициандиамид.2. The composition according to claim 1, is different from the fact that dicyandiamide is used as cyanamides. Таблица 3 щ ми . щ ам пр № кл Table 3 shch pr number 3.Состав по п. 1, отличаюийс  тем, что в качестве цианадов используют меламин. 3. The composition of claim 1, distinguished by the fact that melamine is used as cyanad. 4..Состав по п. 1, отличаюи и с   тем, что в качестве цианида используют мелем, Источники информации, ин тые во внимание при экспертизе 1.Технический отчет НИИАВТОПРОМа 47-69, 1970, с. 34. 2.Патент Японии № 2563, . 12 А 33, 1967.Composition according to claim 1, distinguished by the fact that they use melean as cyanide. Sources of information that are taken into account during the examination 1. Technical report of NIIAVTOPROMa 47-69, 1970, p. 34. 2.Patent of Japan No. 2563,. 12A 33, 1967.
SU752171264A 1975-09-12 1975-09-12 Mixture composition for bath of low-temperature nitrocarburization of steel articles SU773139A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU752171264A SU773139A1 (en) 1975-09-12 1975-09-12 Mixture composition for bath of low-temperature nitrocarburization of steel articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752171264A SU773139A1 (en) 1975-09-12 1975-09-12 Mixture composition for bath of low-temperature nitrocarburization of steel articles

Publications (1)

Publication Number Publication Date
SU773139A1 true SU773139A1 (en) 1980-10-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU752171264A SU773139A1 (en) 1975-09-12 1975-09-12 Mixture composition for bath of low-temperature nitrocarburization of steel articles

Country Status (1)

Country Link
SU (1) SU773139A1 (en)

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