Method and device for separating a rod-like or tubular object made of a brittle material

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46709002%3A_____%2F19%3AN0000024" target="_blank" >RIV/46709002:_____/19:N0000024 - isvavai.cz</a>
Result on the web
<a href="https://data.epo.org/publication-server/pdf-document?pn=3480173&ki=B1&cc=EP&pd=20191204" target="_blank" >https://data.epo.org/publication-server/pdf-document?pn=3480173&ki=B1&cc=EP&pd=20191204</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Method and device for separating a rod-like or tubular object made of a brittle material
Original language description
The invention relates to a method of dividing a rodlike or tubular object made from a brittle material, particularly glass, in which at least one circumferential scratch is first formed on the surface of the object and then a force impulse or impulses are applied to the object being clamped. In order to divide the portion of the object being divided, the surface area of the peripheral scratch and/or its surroundings are brought into contact with the main fluid stream ring which is put in a defined variable velocity motion, wherein, with the change of the main fluid stream velocity, the liquid causes a local drop in the pressure of the fluid to form vacuum-filled tubes, and, after inducing a sudden increase in the pressure of the fluid, these tubes implode, which is accompanied by a shock pressure wave in the fluid ring that causes division of a portion of the tube at the point weakened by the circumferential scratch. The invention also relates to a device for performing this method.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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