SU364448A1 - METHOD OF CENTRIFUGAL SUSPENSION CASTING OF CERAMIC PIPES - Google Patents
METHOD OF CENTRIFUGAL SUSPENSION CASTING OF CERAMIC PIPESInfo
- Publication number
- SU364448A1 SU364448A1 SU1633598A SU1633598A SU364448A1 SU 364448 A1 SU364448 A1 SU 364448A1 SU 1633598 A SU1633598 A SU 1633598A SU 1633598 A SU1633598 A SU 1633598A SU 364448 A1 SU364448 A1 SU 364448A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- centrifugal
- ceramic pipes
- suspension casting
- centrifugal suspension
- casting
- Prior art date
Links
Description
1one
Изобретение относитс к керамическому производству.The invention relates to ceramic production.
Оно может примен тьс в машиностроении и экспериментальной технике.It can be used in mechanical engineering and experimental technology.
Известен центробежный способ получени труб, в котором разностенность устран етс равномерной .подачей массы, подаваемой винтовым бетоноспуском, имеющим осевое перемещение и лопаст)И «а конце дл распределени материала по стенкам формы.A centrifugal method for producing pipes is known, in which the thin-walling is eliminated by an even feeding of the mass supplied by screw-in concrete with axial movement and blade) And at the end for distributing the material along the walls of the mold.
К недостаткам центробежной технологии относитс структурна неоднородность, вызванна сепарационным действием центробежных сил на частицы различных размеров и удельного веса.The disadvantages of centrifugal technology include structural heterogeneity caused by the separation effect of centrifugal forces on particles of various sizes and specific gravities.
При отливке тонкостенных труб литейна масса с малым содержанием жидкой фазы трудно растекаетс по поверхности матрицы, в результате чего по вл етс разностенность. При увеличении количества жидкой фазы, как правило, уменьшаетс устойчивость р да суспензий , по вл ютс дефекты, свойственные центробежному литью.When casting thin-walled pipes, the casting mass with a low content of the liquid phase is difficult to spread over the surface of the matrix, as a result of which the wall thickness appears. With an increase in the amount of the liquid phase, as a rule, the stability of a number of suspensions decreases, the defects characteristic of centrifugal casting appear.
Предлагаемый способ не имеет этих недостатков и отличаетс от известного тем, что формование полуфабриката осуществл ют из суспензий, получаемых непосредственно в центробежном поле, например, при гидролизе растворов К22гРб, NaOH или NH4OH.The proposed method does not have these disadvantages and differs from the well-known fact that the semi-finished product is molded from suspensions obtained directly in a centrifugal field, for example, by hydrolyzing solutions of K22gRb, NaOH or NH4OH.
Дл осуществлени способа берут концентрированные растворы KzZrFe, NaOH или NH40H в необходимом количестве и заливают их во вращающуюс матрицу. При этом растворы растекаютс равно.мерным слоем по .поверхности матрицы и выдел юща с в результате гидролиза ZrO2 формируетс ровным слоем.To carry out the process, take concentrated solutions of KzZrFe, NaOH or NH40H in the required amount and pour them into a rotating matrix. In this case, the solutions spread in an equal-dimensional layer along the surface of the matrix and the ZrO2 released during hydrolysis is formed in an even layer.
При необходимости операцию гидролиза повтор ют с новыми порци ми растворов. В результате послойного формовани структурна неоднородность по зерновому составу резко уменьшаетс . Сформованный полуфабрикат промывают дистилл том и извлекают аз матрицы.If necessary, the hydrolysis operation is repeated with new portions of solutions. As a result of layer-by-layer forming, structural heterogeneity in grain composition is sharply reduced. The formed semi-finished product is washed with distillate and the az matrix is recovered.
Предмет изобретени Subject invention
Способ центробежного суспензионного лить керамических труб, посредством подачи материала во вращающуюс матрицу, формировани и промывки полуфабриката, отличающийс тем, что, с целью обеспечени равномерности толщины стенки и увеличени однородности структуры, формирование полуфабриката осуществл ют из суспензий, получаемых в центробежном поле, например, при гидролизе растворов К22гРб, NaOH и NH4OH.A centrifugal slurry casting method of ceramic tubes by feeding the material into a rotating matrix, forming and washing the semifinished product, characterized in that, to ensure uniform wall thickness and increase the uniformity of the structure, the semi-finished product is formed from suspensions obtained in a centrifugal field, for example, hydrolysis of K22gRb, NaOH and NH4OH solutions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1633598A SU364448A1 (en) | 1971-03-10 | 1971-03-10 | METHOD OF CENTRIFUGAL SUSPENSION CASTING OF CERAMIC PIPES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1633598A SU364448A1 (en) | 1971-03-10 | 1971-03-10 | METHOD OF CENTRIFUGAL SUSPENSION CASTING OF CERAMIC PIPES |
Publications (1)
Publication Number | Publication Date |
---|---|
SU364448A1 true SU364448A1 (en) | 1972-12-28 |
Family
ID=20468847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1633598A SU364448A1 (en) | 1971-03-10 | 1971-03-10 | METHOD OF CENTRIFUGAL SUSPENSION CASTING OF CERAMIC PIPES |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU364448A1 (en) |
-
1971
- 1971-03-10 SU SU1633598A patent/SU364448A1/en active
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