SU495154A1 - Flux for surface alloying of tungsten castings - Google Patents
Flux for surface alloying of tungsten castingsInfo
- Publication number
- SU495154A1 SU495154A1 SU2019463A SU2019463A SU495154A1 SU 495154 A1 SU495154 A1 SU 495154A1 SU 2019463 A SU2019463 A SU 2019463A SU 2019463 A SU2019463 A SU 2019463A SU 495154 A1 SU495154 A1 SU 495154A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- flux
- tungsten
- castings
- surface alloying
- alloying
- Prior art date
Links
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- Mold Materials And Core Materials (AREA)
Description
1one
Изобретение относитс к литейному производству , в частности к флюсам, используемым ири получении литых изделий с легированной поверхностью.This invention relates to a foundry, in particular, to fluxes used in producing cast products with a surface alloy.
Известен флюс дл поверхностного легировани отливок вольфрамом, включающий буру.Known flux for surface alloying of tungsten castings, including borax.
Недостатком известного флюса вл етс то, что при его использовании не обеспечиваетс полного смачивани жидким металлом легирующей смазки, содержащей вольфрам, в св зи с чем требуетс иовыщенна температура заливки металла. При этом легирующий материал на отдельных участках не пропитываетс полиостью расплавом, поэтому легированна вольфрамом поверхность отливок содержит дефекты типа щлаковых раковин, пригара .A disadvantage of the known flux is that when it is used it is not ensured that the alloying fluid containing tungsten is completely wetted by the liquid metal, which is why the improved pouring temperature of the metal is required. At the same time, the alloying material in certain areas is not impregnated with polost with the melt; therefore, the surface of the castings doped with tungsten contains defects such as slag shells and burns.
С целью увеличени глубины легированного сло в состав предлагаемого флюса введен борный ангидрид при следующем соотнощении компонентов, вес. %:In order to increase the depth of the doped layer, boric anhydride was added to the composition of the proposed flux at the following ratio of components, weight. %:
Бура15-80Bura15-80
Борный ангидрид 20-85.Boric anhydride 20-85.
Приготовление флюса и легирующей пасты производ т следующим образом.The preparation of the flux and alloy paste is carried out as follows.
Компоненты флюса в состо нии поставки после взвещивани перемещивают с норощком ферровольфрама в течение 3-5 мин, затем добавл ют св зующее (жидкое стеклоIn the state of delivery, after fluxing, the flux components are moved with the ferro-tungsten fillet for 3-5 minutes, then the binder (liquid glass) is added.
или любое другое св зующее, используемое при изготовлении литейных форм и стержней) в количестве 3-8%, перемещивают еще 5 мин; полученную смесь нанос т на поверхность формы.or any other binder used in the manufacture of casting molds and cores) in an amount of 3-8%, move another 5 minutes; the resulting mixture is applied to the surface of the mold.
Дл проверки вли ни флюса предлагаемого состава легировали ферровольфрамом образцы из чугуна толщиной 30 мм при температуре заливки металла 1400°С. При визуальном осмотре щлаковые раковины, поры иTo check the effect of the flux of the proposed composition, samples of cast iron 30 mm thick at a metal pouring temperature of 1400 ° C were alloyed with ferrofolfram. Visually inspected, slag shells, pores and
другие дефекты не вы влены. Обмазка пропитана на всю толщину, легированна поверхность по качеству не отличаетс от нелегированной .other defects not identified. The coating is impregnated to the full thickness, the doped surface does not differ in quality from the unalloyed.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2019463A SU495154A1 (en) | 1974-04-22 | 1974-04-22 | Flux for surface alloying of tungsten castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2019463A SU495154A1 (en) | 1974-04-22 | 1974-04-22 | Flux for surface alloying of tungsten castings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU495154A1 true SU495154A1 (en) | 1975-12-15 |
Family
ID=20583066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2019463A SU495154A1 (en) | 1974-04-22 | 1974-04-22 | Flux for surface alloying of tungsten castings |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU495154A1 (en) |
-
1974
- 1974-04-22 SU SU2019463A patent/SU495154A1/en active
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