SU986961A1 - Pulverulent composition for titanizing and siliconizing steel products - Google Patents

Pulverulent composition for titanizing and siliconizing steel products Download PDF

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Publication number
SU986961A1
SU986961A1 SU813372163A SU3372163A SU986961A1 SU 986961 A1 SU986961 A1 SU 986961A1 SU 813372163 A SU813372163 A SU 813372163A SU 3372163 A SU3372163 A SU 3372163A SU 986961 A1 SU986961 A1 SU 986961A1
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SU
USSR - Soviet Union
Prior art keywords
steel products
titanizing
siliconizing
pulverulent composition
corrosion resistance
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SU813372163A
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Russian (ru)
Inventor
Леонид Григорьевич Ворошнин
Юрий Семенович Шолпан
Борис Степанович Кухарев
Наталья Георгиевна Кухарева
Елена Олеговна Скачкова
Original Assignee
Белорусский Ордена Трудового Красного Знамени Политехнический Институт
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Priority to SU813372163A priority Critical patent/SU986961A1/en
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Publication of SU986961A1 publication Critical patent/SU986961A1/en

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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C12/00Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
    • C23C12/02Diffusion 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

1one

Изобретение относитс  к металлургии , а именно к химико-термической обработке металлов и сплавов в порошковых средах, и может быть использовано дл  повышени  эксплуатационных характеристик изделий из предварительно никелированных углеродистых сталей, примен емых в приборостроительной , не фт  ной, хи ми че с кой и пищевой отрасл х промышленности.The invention relates to metallurgy, in particular to the chemical and heat treatment of metals and alloys in powder media, and can be used to improve the performance characteristics of products from pre-nickel-plated carbon steels used in instrument-making, non-textile, chemical and food industry

Известен состав дл  диффузионного титаносилицировани  на основе порошков титана и кремнийсодержащих веществ СООднако термодиффузионна  обработка предварительно никелированных углеродистых сталей из этих составов не позвол ет получить на них диффузионные слои с высокой коррозионной стойкостью из-за неудовлетворительного качества поверхности диффузионно-упрочненных материапов .The known composition for diffusive titanization on the basis of titanium powders and silicon-containing substances. However, thermal diffusion treatment of pre-nickel-plated carbon steels from these compositions does not allow to obtain diffusion layers with high corrosion resistance on them due to the unsatisfactory quality of the surface of diffusion-strengthened materials.

Наиболее близким к изобретению по технической сущности и достигаемому результату  вл етс  состав f2} дл  титаносилицировани , содержащий, мае. %: Ав 15; ,J ,6, ШдС1 2.The closest to the invention in technical essence and the achieved result is the composition f2} for titanosilicating, containing, in May. %: Av 15; , J, 6, ShdS1 2.

Коррозионна  стойкость предварительно никелированных углеродистых сталей после обработки в известном состаёе не  вл етс  достаточной при работе деталей из этих материалов в высокоагрессивных средах хиг« 1ческой , нефт ной и особенно пищевой промышленности, в частности в  блочJS ной кислоте.The corrosion resistance of pre-nickel-plated carbon steels after treatment in a known composition is not sufficient when working parts from these materials in highly aggressive environments, oil, and especially the food industry, in particular in block acid.

Целью изобретени   вл етс  повышение коррозионной стойкости изделий в высокоагрессивных средах.The aim of the invention is to increase the corrosion resistance of products in highly corrosive environments.

Указанна  цель достигаетс  тем, . что порошкова  смесь, включающа  окись алюмини , алюминий, двуокись гитана и хлористый аммоний, дополнительно содержит силикокальций,тетрафтороборат кали  и фтористый кальций при следующем соотношении компонентов , мае. :This goal is achieved by that the powder mixture, including alumina, aluminum, guitar dioxide and ammonium chloride, additionally contains silicocalcium, potassium tetrafluoroborate and calcium fluoride in the following ratio of components, May. :

Окись алюмини Aluminum oxide

31-37 Й-1631-37 Y-16

АлюминийAluminum

СиликокальцийSilicocalcium

5,75-7,75 5.75-7.75

Двуокись 37,25-39,25Dioxide 37.25-39.25

титанаtitanium

Тетрафторобо1-3 . рат кали  .Хлористый аммоний 1-3 1-3Tetrafluorobo1-1. potassium potassium. Ammonium chloride 1-3 1-3

Фтористый кальцийCalcium fluoride

Пример . Титаносилйцирование в предлагаемой порошковой среде осуществл етс  при 950°С в течение ч в контейнерах с плавким затвором .An example. Titanium saturation in the proposed powder medium is carried out at 950 ° C for hours in containers with a fusible closure.

Сравнительные данные по коррозионой стойкости предварительно нике ,лированной углеродистой стали 45 а 5%-ном растворе  блочной кислоты при использовании известного и предлагаемого составов приведены в таблицеComparative data on the corrosion resistance of pre-nickel, molded carbon steel 45 and 5% solution of malic acid when using the known and proposed formulas are given in the table

(режим TXT:t 950 C, j.,). (TXT mode: t 950 C, j.,).

Коррозионна  стойкость оцениваетс  по потере массы на единицу площади поверхности образца за 300 ч испытаний .Corrosion resistance is estimated by weight loss per unit surface area of the sample over 300 hours of testing.

Таю1м образом, использование предлагаемого состава позвол ет повысить коррозионную стойкость в  блочной кислоте предварительно никелированных углеродистых сталей в 2-2,5 1эаза. Это дает возможность заменить издели  из дорогой нержавеющей стали на простые углеродистые, обработанные из предлагаемого состава.Thus, the use of the proposed composition makes it possible to increase the corrosion resistance in block acid to pre-nickel-plated carbon steels by 2-2.5 1 eaz. This makes it possible to replace expensive stainless steel products with simple carbonaceous ones treated from the proposed composition.

Известный 6,62Known 6.62

15 37,15 37,

ПредлагаемыйProposed

19nineteen

Claims (1)

Формула изобретенияClaim Порошкообразный состав для титаносилицилирования стальных изделий,преимущественно никелированных, содержащих окись алюминия, алюминий, двуокись титана, хлористый аммоний, отличающийся тем, что, с целью повышения кЬррозионной стойкости изделия в высокоагрессивных средах, он дополнительно содержит силикокальций, тетрафтороборат калия и фтористый кальций при следующем соотношении компонентов, мае.A powder composition for titanosilicylation of steel products, mainly nickel-containing, containing aluminum oxide, aluminum, titanium dioxide, ammonium chloride, characterized in that, in order to increase the corrosion resistance of the product in highly aggressive environments, it additionally contains silicocalcium, potassium tetrafluoroborate and calcium fluoride in the following ratio components, may.
SU813372163A 1981-12-21 1981-12-21 Pulverulent composition for titanizing and siliconizing steel products SU986961A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

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Publications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041275A1 (en) * 1996-04-30 1997-11-06 Westaim Technologies Inc. Surface alloyed high temperature alloys
US6503347B1 (en) 1996-04-30 2003-01-07 Surface Engineered Products Corporation Surface alloyed high temperature alloys

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041275A1 (en) * 1996-04-30 1997-11-06 Westaim Technologies Inc. Surface alloyed high temperature alloys
US6093260A (en) * 1996-04-30 2000-07-25 Surface Engineered Products Corp. Surface alloyed high temperature alloys
US6268067B1 (en) 1996-04-30 2001-07-31 Surface Engineered Products Corporation Surfaced alloyed high temperature alloys
US6503347B1 (en) 1996-04-30 2003-01-07 Surface Engineered Products Corporation Surface alloyed high temperature alloys

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