. "4"^^ . "Hutnick\u00E9 listy" . "Ov\u011B\u0159ov\u00E1n\u00ED procesn\u00EDch parametr\u016F d\u011Brov\u00E1n\u00ED na laboratorn\u00ED v\u00E1lcovac\u00ED stolici" . "2"^^ . "Verification of process parameters during piercing on laboratory rolling mill"@en . "4" . . . "Ov\u011B\u0159ov\u00E1n\u00ED procesn\u00EDch parametr\u016F d\u011Brov\u00E1n\u00ED na laboratorn\u00ED v\u00E1lcovac\u00ED stolici"@cs . . "http://www.hutnickelisty.cz" . . "Unucka, Petr" . "0018-8069" . "35485" . . "[B79AB55FC5E7]" . "LXVII" . "V p\u0159edlo\u017Een\u00E9m \u010Dl\u00E1nku je prezentov\u00E1no experiment\u00E1ln\u00ED ov\u011B\u0159en\u00ED parametr\u016F kos\u00E9ho v\u00E1lcov\u00E1n\u00ED pou\u017E\u00EDvan\u00E9 p\u0159i v\u00FDrob\u011B beze\u0161v\u00FDch trubek. Jako prvn\u00ED byl ov\u011B\u0159ov\u00E1n vliv technologick\u00FDch parametr\u016F (ot\u00E1\u010Dky pracovn\u00EDch v\u00E1lc\u016F, \u00FAhel sklonu pracovn\u00EDch v\u00E1lc\u016F) na velikost osov\u00E9 s\u00EDly, kroutic\u00EDho momentu, proudu motor\u016F, atd. Dostate\u010Dn\u00E1 velikost t\u00E9to s\u00EDly umo\u017E\u0148uje bezprobl\u00E9mov\u00FD tok kovu p\u0159es d\u011Brovac\u00ED trn. Experiment\u00E1ln\u00ED pr\u00E1ce byly prov\u00E1d\u011Bny na laboratorn\u00ED v\u00E1lcovac\u00ED stolici pro dvouv\u00E1lcov\u00E9 uspo\u0159\u00E1d\u00E1n\u00ED s horn\u00EDm op\u011Brn\u00FDm v\u00E1lcem za pou\u017Eit\u00ED speci\u00E1ln\u00EDho tup\u00E9ho trnu a tak\u00E9 p\u0159i klasick\u00E9m d\u011Brov\u00E1n\u00ED s d\u011Brovac\u00EDm trnem s k\u0159ivkovou \u010D\u00E1st\u00ED."@cs . . "V p\u0159edlo\u017Een\u00E9m \u010Dl\u00E1nku je prezentov\u00E1no experiment\u00E1ln\u00ED ov\u011B\u0159en\u00ED parametr\u016F kos\u00E9ho v\u00E1lcov\u00E1n\u00ED pou\u017E\u00EDvan\u00E9 p\u0159i v\u00FDrob\u011B beze\u0161v\u00FDch trubek. Jako prvn\u00ED byl ov\u011B\u0159ov\u00E1n vliv technologick\u00FDch parametr\u016F (ot\u00E1\u010Dky pracovn\u00EDch v\u00E1lc\u016F, \u00FAhel sklonu pracovn\u00EDch v\u00E1lc\u016F) na velikost osov\u00E9 s\u00EDly, kroutic\u00EDho momentu, proudu motor\u016F, atd. Dostate\u010Dn\u00E1 velikost t\u00E9to s\u00EDly umo\u017E\u0148uje bezprobl\u00E9mov\u00FD tok kovu p\u0159es d\u011Brovac\u00ED trn. Experiment\u00E1ln\u00ED pr\u00E1ce byly prov\u00E1d\u011Bny na laboratorn\u00ED v\u00E1lcovac\u00ED stolici pro dvouv\u00E1lcov\u00E9 uspo\u0159\u00E1d\u00E1n\u00ED s horn\u00EDm op\u011Brn\u00FDm v\u00E1lcem za pou\u017Eit\u00ED speci\u00E1ln\u00EDho tup\u00E9ho trnu a tak\u00E9 p\u0159i klasick\u00E9m d\u011Brov\u00E1n\u00ED s d\u011Brovac\u00EDm trnem s k\u0159ivkovou \u010D\u00E1st\u00ED." . . . . "CZ - \u010Cesk\u00E1 republika" . "5"^^ . "Ov\u011B\u0159ov\u00E1n\u00ED procesn\u00EDch parametr\u016F d\u011Brov\u00E1n\u00ED na laboratorn\u00ED v\u00E1lcovac\u00ED stolici" . . "Noga, Roman" . . "Verification of process parameters during piercing on laboratory rolling mill"@en . "I, P(FR-TI3/374)" . "In the present paper presents experimental verification cross-rolling parameters used in the producing of seamless tubes. The first was tested the influence of technological parameters (dependence of speed work rolls and the transport angle of the working rolls at time) on the axis force, torque, motor current, ect. Sufficient size of this force allows the smooth flow of metal through the piercing plug. Experimental work was carried out on a laboratory rolling mill for two-cylinder arrangement with the upper support-roll using a special blunt mandrel and also the classical piercing with a piercing plug having a curvilinear part. The technological parameters was within the scope speed of work-rolls 80 \u2013 100 rpm and transport angel = 3 - 9\u00B0. Sufficiently large reserve the axial force is necessary to prevent blinded tube making, which decreases production tact and thus also capacity of production. The primary effect of the size of the axial force has the transport angle, which for a given calibration work rolls shows the possibilities and limitations of the technology with such rolls."@en . "RIV/25870807:_____/14:#0000388" . "Ov\u011B\u0159ov\u00E1n\u00ED procesn\u00EDch parametr\u016F d\u011Brov\u00E1n\u00ED na laboratorn\u00ED v\u00E1lcovac\u00ED stolici"@cs . "RIV/25870807:_____/14:#0000388!RIV15-MPO-25870807" . . . . "seamless tube operating parameters hot forming"@en .