SU791785A1 - Composition for boroaluminizing - Google Patents
Composition for boroaluminizing Download PDFInfo
- Publication number
- SU791785A1 SU791785A1 SU792706183A SU2706183A SU791785A1 SU 791785 A1 SU791785 A1 SU 791785A1 SU 792706183 A SU792706183 A SU 792706183A SU 2706183 A SU2706183 A SU 2706183A SU 791785 A1 SU791785 A1 SU 791785A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- composition
- aluminum
- phenol
- polyvinyl butyral
- boric anhydride
- 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)
- Adhesives Or Adhesive Processes (AREA)
Description
(54) СОСТАВ ДЛЯ БОРОАЛИТИРОВАНИЯ(54) COMPOSITION FOR BOROTULATION
Изобретение относитс к. области химико-термической обработки металлов и сплавов, в частности к составам, дл комплексного насыщени бором и алюминием, и может быть использовано 5 дл повьлаени аксплуатационной стойкости деталей машин, инструмента и технологической оснастки в машиностроительной , металлургической, приборостроительной, химической и 10 других отрасл х промышленности.The invention relates to the field of chemical-heat treatment of metals and alloys, in particular, to compositions for complex saturation with boron and aluminum, and can be used 5 to improve the operational resistance of machine parts, tools and tooling in engineering, metallurgy, instrument-making, chemical and 10 other industries.
Известен состав дл бороалитировани из пасты, содержащей аморфный бор и алюминиевую пудру до 10%, а в качестве св зки - 2%-ный водный 5 раствор силикатного кле fl3A known composition for boronation analysis from a paste containing amorphous boron and aluminum powder up to 10%, and as a binder - 2% aqueous 5 solution of fl3 silicate glue
Недостатком известного состава вл етс низка скорость формировани диффузионного сло .A disadvantage of the known composition is the low rate of formation of the diffusion layer.
Известен состав дл бороалитиро- 20 вани , содержащий следующие компоненты , вес.%:A known composition for boron polymerization, containing the following components, wt%:
Борный ангидрид 10-15 Порошок алюмини 15-20 Фтористый натрий 0,5-2,0 25 Окись алюмини Остальное Р1 Недостатками известного состава дл дл бороалитировани вл ютс низкаш скорость формировани сло , необходимость применени дл проведени 30Boric anhydride 10-15 Aluminum powder 15-20 Sodium fluoride 0.5-2.0 25 Alumina Rest P1 The disadvantages of the known composition for boronation are the low rate of formation of the layer, the need for application for carrying out 30
процесса насыщени контейнеров из жаростойкой стали, снабженных плавками затвором или герметизированных каким-либо иным способом, значительный расход насыщающей смеси, необходимость повторного нагрева при проведении последующей бороалитированных деталей и его нежелательные последстви (рассасывание сло , возможность по влени трещин, разъединение поверхности и т.д.) получение бороалитированного сло на всей поверхности обрабатываемого издели , что ,в р де случаев не требуетс .the process of saturating containers made of heat-resistant steel, supplied with fusibles or sealed in any other way, significant consumption of saturating mixture, the need to re-heat during the subsequent boron-analyzed parts and its undesirable consequences (resorption of the layer, the possibility of cracking, separation of the surface, etc. .) obtaining a boron-rich layer over the entire surface of the workpiece, which, in some cases, is not required.
Целью изобретени вл етс интейсификаци процесса насыщени и повы шение технологической эффективности.The aim of the invention is to intensify the saturation process and increase technological efficiency.
Дл достижени поставленной цели предлагаетс состав, содержащий борный ангидрид, алюминий, криолит, окись алюмини , ацетон, клей на основе фенолформальдегидных смол, модифицированных поливинилбутиралем, при следующем соотношении компонентов, вес.%:To achieve this goal, a composition containing boric anhydride, aluminum, cryolite, alumina, acetone, glue based on phenol-formaldehyde resins modified with polyvinyl butyral, is proposed in the following ratio of components, wt.%:
Борный ангидрид 29-32 Порошок алюмини 22-29 Криолит (NajAlF) 3-5 Окись алюмини 27-29Boric anhydride 29-32 Aluminum powder 22-29 Cryolite (NajAlF) 3-5 Aluminum oxide 27-29
Ацетон8,4-9,7Acetone8,4-9,7
Клв0 на основе фенолоформальдегидных смол, модифицированных поливинилбутиралем 1,0-5,6Klv0 based on phenol-formaldehyde resins modified with polyvinyl butyral 1.0 to 5.6
Состав дл бороалитировани наноситс на обрабатываемую поверхность слоем 1,5-0,3 мм, Бороалитиррвание проводитс в интервале температур 800-1000°С с нагревом в окислительноThe composition for boronation is applied to the surface to be treated with a layer of 1.5-0.3 mm, and the boronation is carried out in the temperature range of 800-1000 ° C with heating in oxidative
1атмосфере или в расплаве солей. Защи (та от окислени осуществл етс путем нанесени на поверхность насыщенной смеси специальной противоокислитель-. ной Пасты. Продолжительность насыщени зависит от требуемой толщины ело и составл ет 2-6 ч.1 atmosphere or in the molten salt. Protect (that against oxidation is carried out by applying a special antioxidant paste to the surface of the saturated mixture. The duration of the saturation depends on the desired thickness of the body and is 2-6 hours.
Зависимость толщины диффузионного сло от режима обработки и состава насыщенной смеси представлена в таблице .The dependence of the thickness of the diffusion layer on the processing mode and the composition of the saturated mixture is presented in the table.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792706183A SU791785A1 (en) | 1979-01-03 | 1979-01-03 | Composition for boroaluminizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792706183A SU791785A1 (en) | 1979-01-03 | 1979-01-03 | Composition for boroaluminizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU791785A1 true SU791785A1 (en) | 1980-12-30 |
Family
ID=20802525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792706183A SU791785A1 (en) | 1979-01-03 | 1979-01-03 | Composition for boroaluminizing |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU791785A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987004730A1 (en) * | 1986-02-07 | 1987-08-13 | Aluminum Company Of America | Method of heat treatment |
-
1979
- 1979-01-03 SU SU792706183A patent/SU791785A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987004730A1 (en) * | 1986-02-07 | 1987-08-13 | Aluminum Company Of America | Method of heat treatment |
| US4818302A (en) * | 1986-02-07 | 1989-04-04 | Aluminum Company Of America | Method of heat treatment |
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