RU2002130127A - METHOD OF BORROCHROMATION OF STEEL PRODUCTS - Google Patents

METHOD OF BORROCHROMATION OF STEEL PRODUCTS

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Publication number
RU2002130127A
RU2002130127A RU2002130127/02A RU2002130127A RU2002130127A RU 2002130127 A RU2002130127 A RU 2002130127A RU 2002130127/02 A RU2002130127/02 A RU 2002130127/02A RU 2002130127 A RU2002130127 A RU 2002130127A RU 2002130127 A RU2002130127 A RU 2002130127A
Authority
RU
Russia
Prior art keywords
chromium
borochroming
temperature
carried out
bromide
Prior art date
Application number
RU2002130127/02A
Other languages
Russian (ru)
Other versions
RU2391441C2 (en
RU2230826C1 (en
Inventor
Юрий Александрович Баландин
Алексей Николаевич Емелюшин
Владимир Леонидович Корнилов
Елена Васильевна Петроченко
Original Assignee
Открытое акционерное общество "Магнитогорский металлургический комбинат"
Filing date
Publication date
Application filed by Открытое акционерное общество "Магнитогорский металлургический комбинат" filed Critical Открытое акционерное общество "Магнитогорский металлургический комбинат"
Priority to RU2002130127/02A priority Critical patent/RU2391441C2/en
Priority claimed from RU2002130127/02A external-priority patent/RU2391441C2/en
Publication of RU2002130127A publication Critical patent/RU2002130127A/en
Application granted granted Critical
Publication of RU2230826C1 publication Critical patent/RU2230826C1/en
Publication of RU2391441C2 publication Critical patent/RU2391441C2/en

Links

Claims (1)

Способ борохромирования стальных изделий, включающий нагрев, насыщение при температуре борохромирования в порошкообразной смеси, содержащей карбид бора, хромсодержащее вещество, активатор и корунд, и последующее охлаждение, отличающийся тем, что борохромирование проводят в псевдоожиженном слое порошкообразной смеси, дополнительно содержащей хлорид никеля NiCl2, в качестве хромсодержащего вещества - бромид хрома CrBr2, в качестве активатора - тетрафторборат натрия и бромистый аммоний, при следующем соотношении компонентов, мас.%:A method of borochroming steel products, including heating, saturation at a temperature of borochroming in a powder mixture containing boron carbide, a chromium-containing substance, activator and corundum, and subsequent cooling, characterized in that the borochroming is carried out in a fluidized bed of a powder mixture, additionally containing nickel chloride NiCl 2 , as chromium-containing substance - chromium bromide CrBr 2 , as an activator - sodium tetrafluoroborate and ammonium bromide, in the following ratio, wt.%: Карбид бора 0,5-25,0Boron carbide 0.5-25.0 Бромид хрома CrBr2 0,5-15,0Chromium bromide CrBr 2 0.5-15.0 Хлорид никеля NiCl2 0,1-2,0Nickel Chloride NiCl 2 0.1-2.0 Тетрафторборат натрия 0,1-1,0Sodium tetrafluoroborate 0.1-1.0 Бромистый аммоний 0,1-2,0Ammonium bromide 0.1-2.0 Корунд 55-98,7Corundum 55-98.7 нагрев и насыщение изделий ведут в среде водорода, причем в процессе нагрева осуществляют две выдержки: при температуре 300-500°С в течение 3-10 мин, при температуре 600-900°С в течение 5-30 мин, а перед охлаждением газообразные продукты откачивают.heating and saturation of the products are carried out in a hydrogen medium, and during the heating process, two extracts are carried out: at a temperature of 300-500 ° C for 3-10 minutes, at a temperature of 600-900 ° C for 5-30 minutes, and before cooling, gaseous products pumped out.
RU2002130127/02A 2002-11-10 2002-11-10 Method of chrome boron coating of steel items RU2391441C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002130127/02A RU2391441C2 (en) 2002-11-10 2002-11-10 Method of chrome boron coating of steel items

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002130127/02A RU2391441C2 (en) 2002-11-10 2002-11-10 Method of chrome boron coating of steel items

Publications (3)

Publication Number Publication Date
RU2002130127A true RU2002130127A (en) 2004-05-27
RU2230826C1 RU2230826C1 (en) 2004-06-20
RU2391441C2 RU2391441C2 (en) 2010-06-10

Family

ID=32846358

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002130127/02A RU2391441C2 (en) 2002-11-10 2002-11-10 Method of chrome boron coating of steel items

Country Status (1)

Country Link
RU (1) RU2391441C2 (en)

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