SU865968A1 - Composition for borochrome-plating of steel articles - Google Patents
Composition for borochrome-plating of steel articles Download PDFInfo
- Publication number
- SU865968A1 SU865968A1 SU792839160A SU2839160A SU865968A1 SU 865968 A1 SU865968 A1 SU 865968A1 SU 792839160 A SU792839160 A SU 792839160A SU 2839160 A SU2839160 A SU 2839160A SU 865968 A1 SU865968 A1 SU 865968A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chromium
- boron
- composition
- oxide
- borochrome
- Prior art date
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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
- C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
- C23C12/02—Diffusion in one step
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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)
- Chemically Coating (AREA)
Description
(5А)СОСТАВ ДЛЯ БОРОХРОМИРОВАНИЯ СТАЛЬНЫХ(5A) COMPOSITION FOR STORAGE STORAGE
1one
Изобретение относитс к химикотермической обработке металлов и сплавов в порошковых насыщающих средах , в частности, к диффузионному борохромированию .The invention relates to the chemical-heat treatment of metals and alloys in powder saturating media, in particular, to diffusion borochroming.
Известен состав порошковых насьпцаю щих сред дл диффузионного борохромировани на основе бор - и хромсодержащих веществ. Обработка упрочн емых изделий в известном составе приводит к формированию двухфазного борохромированного сло , состо щего из фаз типа (Ре, Сг) В и D 1.The known composition of powdered oxypropagating media for diffusion boron chromium-based boron and chromium-containing substances. Processing hardened products in a known composition leads to the formation of a two-phase borochrome layer consisting of phases of the type (Fe, Cr) B and D 1.
Наиболее близким техническим решением к предлагаемому вл етс состав дл борохромировани , содержащий мас.%: 98,5 ВдС + 1,5 Сг.The closest technical solution to the present invention is a borochromizing composition containing wt.%: 98.5 VDS + 1.5 Cg.
Борохромирование в известном составе стали 45 при температуре 950°С в течение 6 ч приводит к формированию двухфазного борохромированного сло толщиной 180,мкм. состо щего из фаз FeB,легированной хромом, и ,Borochrome plating in a known composition of steel 45 at a temperature of 950 ° C for 6 hours leads to the formation of a two-phase borochromic layer 180 microns thick. consisting of chromium alloyed FeB phases and
издалийfrom afar
Однако двухфазный борохромированный слой, формируемый при обработке упрочн емых изделий в известном составе j характеризуетс повышенной хрупкостью, что ограничивает область широкого промышленного использовани данного вида упрочнени .However, the two-phase borochrome layer formed during the processing of hardened products in the known composition j is characterized by increased brittleness, which limits the wide industrial use of this type of hardening.
Цель изобретени - повышение скорости насыщени и снижение хрупкости получаемого сло .The purpose of the invention is to increase the saturation rate and reduce the embrittlement of the resulting layer.
Дл достижени указанной цели в состав на основе бор - и хромсодержащих веществ, дополнительно ввод т алюминий, -окись алюмини , фтористый натрий и серу, окись бора в качестве борсодержащего компонента и окись хрома в качестве хромсодержащего компонента , при следующем соотношении ингредиентов, мас.%:In order to achieve this goal, the composition based on boron and chromium-containing substances additionally introduces aluminum, aluminum oxide, sodium fluoride and sulfur, boron oxide as a boron-containing component and chromium oxide as a chromium-containing component, in the following ratio of ingredients, wt.% :
Окись хлора 5,6-8,2 Окись бора 19,3-21,9 Порошок алюмини 21,5-23,5 Окись алюмини 47-49Chlorine oxide 5.6-8.2 Boron oxide 19.3-21.9 Aluminum powder 21.5-23.5 Aluminum oxide 47-49
Фтористый натрий0 ,5-1,5 Сера0,5-1,5 Перед использованием насыщающей смеси провод т ее предварительное восстановление.Sodium fluoride, 5-1.5 Sulfur0.5-1.5 Before using the saturating mixture, it is pre-reduced.
Борироваиие в предлагаемой порошковой среде осуществл ют в контейнерах с плавкими затворами при 8001000 С в течение 2-8 ч при этом формируютс .однофазные слои фазы (Fe, Сг)2 В. Провод т обработку деталей из стали А5 при в течение 6 ч,Boroviai in the proposed powder medium is carried out in containers with fusible closures at 8001000 C for 2-8 h. At the same time, single phase phase layers (Fe, Cr) 2 V are formed. The processing of parts from A5 steel is carried out for 6 h.
Результаты обработки в известном и предлагаемом составах, приведены в таблице.The results of processing in the known and proposed formulations are shown in the table.
Из приведенных в таблице данных следует, что борохромирование с использованием предлагаемого состава позвол ет получать однофазные боро хромированные слои, что в 2 раза снжает хрупкость сло , а также ускорить процесс обработки на 10-20%.It follows from the data in the table that borochroming using the proposed composition allows one to obtain single-phase boron chrome layers, which 2 times reduces the fragility of the layer, and also speeds up the process by 10–20%.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792839160A SU865968A1 (en) | 1979-11-13 | 1979-11-13 | Composition for borochrome-plating of steel articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792839160A SU865968A1 (en) | 1979-11-13 | 1979-11-13 | Composition for borochrome-plating of steel articles |
Publications (1)
Publication Number | Publication Date |
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SU865968A1 true SU865968A1 (en) | 1981-09-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU792839160A SU865968A1 (en) | 1979-11-13 | 1979-11-13 | Composition for borochrome-plating of steel articles |
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SU (1) | SU865968A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107460434A (en) * | 2017-07-28 | 2017-12-12 | 江苏大学 | Efficiently, high quality nickel base superalloy surface salt bath chromizing agent and technique |
-
1979
- 1979-11-13 SU SU792839160A patent/SU865968A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107460434A (en) * | 2017-07-28 | 2017-12-12 | 江苏大学 | Efficiently, high quality nickel base superalloy surface salt bath chromizing agent and technique |
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