{"id":2894,"date":"2026-02-05T01:34:54","date_gmt":"2026-02-05T01:34:54","guid":{"rendered":"https:\/\/www.materialstests.com\/products\/wtd-01-bending-resistance-tester\/"},"modified":"2026-02-05T01:34:54","modified_gmt":"2026-02-05T01:34:54","slug":"wtd-01-bending-resistance-tester","status":"publish","type":"products","link":"https:\/\/www.materialstests.com\/sk\/products\/wtd-01-bending-resistance-tester.html","title":{"rendered":"WTD-01 Tester odporu proti ohybu"},"content":{"rendered":"

1. \u00davod do ohybu\u00a0tester odporu<\/a><\/h2>\n

Na z\u00e1klade princ\u00edpu dvojbodov\u00e9ho za\u0165a\u017eenia,\u00a0\u00a0Pr\u00edstroj na meranie ohybovej pevnosti<\/strong>\u00a0sl\u00fa\u017ei na stanovenie ohybovej pevnosti papiera a lepenky. Uplat\u0148uje sa pri meran\u00ed ohybovej pevnosti v rozsahu od 20 mN do 10 000 mN. Nevz\u0165ahuje sa na vlnit\u00fa lepenku, ale m\u00f4\u017ee sa uplatni\u0165 na jej s\u00fa\u010dasti.<\/p>\n

 <\/p>\n

2. Podmienky<\/h2>\n

Ohybov\u00e1 sila:<\/strong>\u00a0sila potrebn\u00e1 na ohyb pravouhl\u00e9ho sk\u00fa\u0161obn\u00e9ho telesa upnut\u00e9ho na jednom konci.<\/p>\n

Odolnos\u0165 proti ohybu:\u00a0<\/strong>vypo\u010d\u00edta sa priemern\u00e1 hodnota v\u0161etk\u00fdch platn\u00fdch meran\u00ed nameranej ohybovej sily. Odolnos\u0165 proti ohybu sa vyjadruje v newtonoch alebo milinewtonoch.<\/p>\n

D\u013a\u017eka ohybu:<\/strong>\u00a0kon\u0161tantn\u00e1 radi\u00e1lna vzdialenos\u0165 medzi svorkou a bodom na sk\u00fa\u0161obnom kuse, v ktorom p\u00f4sob\u00ed sila<\/p>\n

Uhol ohybu:\u00a0<\/strong>uhol, pod ktor\u00fdm sa svorka ot\u00e1\u010da pri pohybe z po\u010diato\u010dnej polohy do polohy, v ktorej sa meria ohybov\u00e1 pevnos\u0165<\/p>\n

Vo\u013en\u00e1 d\u013a\u017eka:<\/strong>\u00a0celkov\u00e1 d\u013a\u017eka sk\u00fa\u0161obn\u00e9ho telesa, ktor\u00e1 vy\u010dn\u00edva zo svorky<\/p>\n

\"WTD-01<\/p>\n

3. Na\u010do potrebujete pr\u00edstroj na meranie ohybovej pevnosti?<\/h2>\n

Ohybov\u00e1 tuhos\u0165 papiera a lepenky je mierou odolnosti materi\u00e1lu vo\u010di ohybu alebo deform\u00e1cii. Ohybov\u00e1 tuhos\u0165 je k\u013e\u00fa\u010dov\u00e1 v pr\u00edpadoch, ke\u010f si materi\u00e1l mus\u00ed zachova\u0165 svoj tvar alebo odol\u00e1va\u0165 deform\u00e1cii, napr\u00edklad pri v\u00fdrobe obalov, v tla\u010diarenskom priemysle a pri r\u00f4znych v\u00fdrobkoch na b\u00e1ze papiera. Vysok\u00e1 ohybov\u00e1 tuhos\u0165 m\u00f4\u017ee prispie\u0165 k lep\u0161\u00edm vlastnostiam z h\u013eadiska pevnosti a stability.<\/p>\n

 <\/p>\n

4. Technick\u00e9 vlastnosti<\/h2>\n

Meranie z viacer\u00fdch uhlov:<\/strong>\u00a0Umo\u017e\u0148uje s\u00fa\u010dasn\u00e9 nastavenie a\u017e 3 testovac\u00edch uhlov. Medzi be\u017ene pou\u017e\u00edvan\u00e9 testovacie uhly patria 7,5\u00b0, 15\u00b0 a 30\u00b0.<\/p>\n

Oh\u00fdbanie \u010dasu:<\/strong>\u00a0Pon\u00faka flexibilitu pri v\u00fdbere r\u00f4znych \u010dasov oh\u00fdbania v z\u00e1vislosti od pru\u017enosti materi\u00e1lu.<\/p>\n

Pou\u017e\u00edvate\u013esk\u00e9 rozhranie:<\/strong>\u00a0Vyu\u017e\u00edva 7-palcov\u00fd dotykov\u00fd displej, ktor\u00fd umo\u017e\u0148uje ovl\u00e1danie prostredn\u00edctvom vizu\u00e1lneho menu.<\/p>\n

Tla\u010dov\u00fd v\u00fdstup:<\/strong>\u00a0Vybaven\u00e9 modul\u00e1rnou integrovanou term\u00e1lnou tla\u010diar\u0148ou, ktor\u00e1 umo\u017e\u0148uje r\u00fdchlu a jednoduch\u00fa tla\u010d v\u00fdsledkov testov.<\/p>\n

\"WTD-01<\/p>\n

5. Princ\u00edp testovania<\/h2>\n

Meranie sily potrebnej na ohnutie sk\u00fa\u0161obn\u00e9ho telesa upnut\u00e9ho na jednom konci o stanoven\u00fd uhol, zvy\u010dajne 15\u00b0, pri\u010dom sa sila p\u00f4sob\u00ed na stanoven\u00fa d\u013a\u017eku ohybu (50 mm alebo 10 mm). Odolnos\u0165 proti ohybu sa vypo\u010d\u00edta ako priemer nameran\u00fdch s\u00edl.<\/p>\n

 <\/p>\n

6. Pou\u017eitie<\/h2>\n

Balenie:<\/strong>\u00a0Ohybov\u00e1 tuhos\u0165 je d\u00f4le\u017eit\u00e1 pre to, aby obalov\u00e9 materi\u00e1ly zachovali svoj tvar a poskytovali obsahu dostato\u010dn\u00fa ochranu.<\/p>\n

Tla\u010d:<\/strong>\u00a0Pri tla\u010dov\u00fdch procesoch, najm\u00e4 pri vysokor\u00fdchlostnej tla\u010di, je \u017eiaduce pou\u017e\u00edva\u0165 papier s primeranou tuhos\u0165ou v ohybe, aby sa predi\u0161lo probl\u00e9mom, ako je zasek\u00e1vanie papiera.<\/p>\n

V\u00fdrobky z lepenky:\u00a0<\/strong>V\u00fdrobky ako kart\u00f3nov\u00e9 obaly a prezenta\u010dn\u00e9 tabule vy\u017eaduj\u00fa dostato\u010dn\u00fa ohybov\u00fa tuhos\u0165, aby bola zaru\u010den\u00e1 ich kon\u0161truk\u010dn\u00e1 pevnos\u0165.<\/p>\n

 <\/p>\n

7. Technick\u00e9 \u00fadaje<\/h2>\n
\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Testovac\u00ed rozsah<\/td>\n(0\u201310 000) mN<\/td>\n<\/tr>\n
Rozl\u00ed\u0161enie<\/td>\n0,1 mN<\/td>\n<\/tr>\n
Presnos\u0165<\/td>\n\u00b1 0,51 TP4T F.S.<\/td>\n<\/tr>\n
D\u013a\u017eka ohybu<\/td>\n5, 10, 15, 20, 25, 30, 40, 50 mm<\/td>\n<\/tr>\n
Uhol ohybu<\/td>\n1\u00b0 a\u017e 90\u00b0<\/td>\n<\/tr>\n
R\u00fdchlos\u0165 oh\u00fdbania<\/td>\n0,5 a\u017e 50 \u00b0\/s<\/td>\n<\/tr>\n
R\u00fdchlos\u0165 a presnos\u0165<\/td>\n\u00b1 0,1\u00b0<\/td>\n<\/tr>\n
Typ svorky<\/td>\nManu\u00e1lne<\/td>\n<\/tr>\n
Hr\u00fabka vzorky<\/td>\n0,01\u20135 mm<\/td>\n<\/tr>\n
Ve\u013ekos\u0165 vzorky<\/td>\n38 \u00d7 70 mm<\/td>\n<\/tr>\n
Obrazovka<\/td>\n7-palcov\u00fd farebn\u00fd dotykov\u00fd displej<\/td>\n<\/tr>\n
Tla\u010diare\u0148<\/td>\nTyp vykurovania<\/td>\n<\/tr>\n
Nap\u00e1janie<\/td>\n220 V, 50 Hz<\/td>\n<\/tr>\n
Rozmer<\/td>\n380 \u00d7 390 \u00d7 255 mm (v \u00d7 \u0161 \u00d7 h)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
Ve\u013ekos\u0165 vzorky<\/td>\n(70 \u00d7 38) mm Vzorka na meranie tuhosti\uff1b<\/td>\n<\/tr>\n
(38 \u00d7 36) Vzorka na meranie tuhosti v ohybe<\/td>\n<\/tr>\n
Paralelnos\u0165<\/td>\n\u22640,015 mm<\/td>\n<\/tr>\n
Hr\u00fabka odberu vzorky<\/td>\n(0,1\u20131,2) mm<\/td>\n<\/tr>\n
Rozmer<\/td>\n300 \u00d7 90 \u00d7 90 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

8. \u0160tandard<\/h2>\n

GB\/T 2679\u00b73, GB\/T 22364, GB\/T 23144, QB\/T5559, ISO 5628, ISO 2493-1, TAPPI T 556, DIN 53121, BS 3748, AS\/NZ 1301-4535, SCAN P29<\/p>\n

 <\/p>\n

9. Konfigur\u00e1cia<\/h2>\n

a) \u0160tandardn\u00e1 konfigur\u00e1cia:\u00a0WTD-01 Pr\u00edstroj na meranie ohybovej tuhosti<\/strong>, rolka papiera, manu\u00e1l, kalibra\u010dn\u00fd certifik\u00e1t, nap\u00e1jac\u00ed k\u00e1bel.<\/p>\n

b) Volite\u013en\u00e1 konfigur\u00e1cia: \u0161tandardn\u00e1 hmotnos\u0165, sn\u00edma\u010d za\u0165a\u017eenia.<\/p>\n

\"WTD-01<\/p>\n

10. \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n

Ak\u00e9 faktory ovplyv\u0148uj\u00fa ohybov\u00fa tuhos\u0165 papiera a lepenky?<\/strong><\/p>\n

Na ohybov\u00fa tuhos\u0165 papiera a lepenky m\u00f4\u017ee vpl\u00fdva\u0165 viacero faktorov. Tu s\u00fa k\u013e\u00fa\u010dov\u00e9 faktory, ktor\u00e9 zohr\u00e1vaj\u00fa \u00falohu pri ur\u010dovan\u00ed ohybovej tuhosti t\u00fdchto materi\u00e1lov:<\/p>\n

1.\u00a0Hr\u00fabka materi\u00e1lu:<\/strong>\u00a0Vo v\u0161eobecnosti plat\u00ed, \u017ee hrub\u0161ie materi\u00e1ly vykazuj\u00fa vy\u0161\u0161iu ohybov\u00fa tuhos\u0165. Hr\u00fabka papiera alebo lepenky je v\u00fdznamn\u00fdm faktorom, ktor\u00fd ovplyv\u0148uje ich odolnos\u0165 vo\u010di ohybu.<\/p>\n

2.\u00a0Typ a orient\u00e1cia vl\u00e1kien:\u00a0<\/strong>Druh vl\u00e1kien pou\u017eit\u00fdch v papieri alebo lepenke, ako aj ich orient\u00e1cia, m\u00f4\u017eu ovplyvni\u0165 ohybov\u00fa tuhos\u0165. Dlh\u0161ie a lep\u0161ie usporiadan\u00e9 vl\u00e1kna zvy\u010dajne prispievaj\u00fa k vy\u0161\u0161ej tuhosti.<\/p>\n

3.\u00a0Tvorba plechu:\u00a0<\/strong>Sp\u00f4sob rozlo\u017eenia vl\u00e1kien a ich formovania do pl\u00e1tu m\u00f4\u017ee ovplyvni\u0165 ohybov\u00fa tuhos\u0165. Rovnomern\u00e9 a spr\u00e1vne orientovan\u00e9 rozlo\u017eenie vl\u00e1kien m\u00f4\u017ee prispie\u0165 k zv\u00fd\u0161eniu tuhosti.<\/p>\n

4.\u00a0Obsah vlhkosti:<\/strong>\u00a0Obsah vlhkosti v papieri a lepenke m\u00f4\u017ee ovplyv\u0148ova\u0165 ich ohybnos\u0165 a n\u00e1sledne aj ich ohybov\u00fa tuhos\u0165. Vy\u0161\u0161ia vlhkos\u0165 m\u00f4\u017ee t\u00fato tuhos\u0165 zni\u017eova\u0165.<\/p>\n

5.\u00a0Rovnomernos\u0165 strunov\u00e9ho kalibra:<\/strong>\u00a0Hr\u00fabka ozna\u010duje hr\u00fabku materi\u00e1lu. Rovnomern\u00e1 hr\u00fabka po celej ploche plechu prispieva k rovnomernej tuhosti pri ohybe.<\/p>\n

6.\u00a0Chemick\u00e9 pr\u00edsady:<\/strong>\u00a0Pr\u00edtomnos\u0165 ur\u010dit\u00fdch chemick\u00fdch l\u00e1tok, povrchov\u00fdch \u00faprav alebo pr\u00edsad v zlo\u017een\u00ed papiera alebo lepenky m\u00f4\u017ee ovplyvni\u0165 ich mechanick\u00e9 vlastnosti, vr\u00e1tane ohybovej tuhosti.<\/p>\n

7.\u00a0Teplota a vlhkos\u0165:<\/strong>\u00a0Podmienky prostredia, ako s\u00fa teplota a vlhkos\u0165, m\u00f4\u017eu ovplyv\u0148ova\u0165 vlastnosti papiera a lepenky. Zmeny t\u00fdchto podmienok m\u00f4\u017eu sp\u00f4sobi\u0165 zmenu ohybovej tuhosti.<\/p>\n

8.\u00a0Procesy lisovania a su\u0161enia:\u00a0<\/strong>Met\u00f3dy pou\u017e\u00edvan\u00e9 pri lisovan\u00ed a su\u0161en\u00ed v procese v\u00fdroby papiera m\u00f4\u017eu ovplyvni\u0165 vn\u00fatorn\u00fa \u0161trukt\u00faru a n\u00e1sledne aj ohybov\u00fa tuhos\u0165 kone\u010dn\u00e9ho v\u00fdrobku.<\/p>\n

9.\u00a0Zlo\u017eenie buni\u010diny:<\/strong>\u00a0Druh a zlo\u017eenie buni\u010diny pou\u017eitej pri v\u00fdrobe papiera zohr\u00e1vaj\u00fa k\u013e\u00fa\u010dov\u00fa \u00falohu. R\u00f4zne druhy buni\u010diny maj\u00fa r\u00f4znu d\u013a\u017eku vl\u00e1kien, \u010do m\u00f4\u017ee ovplyvni\u0165 ohybov\u00fa tuhos\u0165.
\nPovlaky a povrchov\u00e9 \u00fapravy: Povlaky alebo povrchov\u00e9 \u00fapravy nanesen\u00e9 na povrch papiera alebo lepenky m\u00f4\u017eu ovplyvni\u0165 ich mechanick\u00e9 vlastnosti, vr\u00e1tane ohybovej tuhosti.<\/p>\n

10.\u00a0Hustota materi\u00e1lu:<\/strong>\u00a0Hustota papiera alebo lepenky m\u00f4\u017ee ovplyvni\u0165 jej ohybov\u00fa tuhos\u0165. Vy\u0161\u0161ia hustota sa \u010dasto sp\u00e1ja so zv\u00fd\u0161enou tuhos\u0165ou.<\/p>\n

 <\/p>\n

Ak m\u00e1te potrebu n\u00e1kupu, pros\u00edm\u00a0kontaktujte n\u00e1s<\/a>\u00a0a\u00a0Cell Instruments<\/a>\u00a0v\u00e1m poskytne uspokojiv\u00e9 produkty.<\/p>\n

\"WTD-01<\/a><\/p>\n

Ak m\u00e1te z\u00e1ujem o \u010fal\u0161ie inform\u00e1cie o tomto v\u00fdrobku, nev\u00e1hajte n\u00e1s kontaktova\u0165. Odpor\u00fa\u010dame v\u00e1m \u010fal\u0161ie ob\u013e\u00faben\u00e9 produkty:\u00a0Tester hr\u00fabky tkaniva<\/a>,\u00a0Tester hr\u00fabky papiera a lepenky<\/a>,\u00a0Tester kontajnerov<\/a>,\u00a0met\u00f3da sk\u00fa\u0161ky hr\u00fabky tkaniny<\/a>,\u00a0v\u00fdznam testera hr\u00fabky tkaniny<\/a>,\u00a0V\u00fdrobca testerov flex gelbo<\/a>,\u00a0V\u00fdrobca Gelbo Flex Tester<\/a>,\u00a0Tester hr\u00fabky tkaniva v\u00fdrobca<\/a>,\u00a0V\u00fdrobca papierov\u00fdch dosiek Tester<\/a><\/p>","protected":false},"excerpt":{"rendered":"

1. Tester odolnosti proti ohybu Na z\u00e1klade princ\u00edpu dvojbodov\u00e9ho za\u0165a\u017eenia sa tester odolnosti proti ohybu pou\u017e\u00edva na stanovenie odolnosti papiera a lepenky proti ohybu. Pou\u017e\u00edva sa na meranie odporu proti ohybu v rozsahu od 20 mN do10000 mN. Nie je pou\u017eite\u013en\u00fd na vlnit\u00fa lepenku, ale m\u00f4\u017ee sa pou\u017ei\u0165 na komponenty takejto lepenky.<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false},"products-categories":[1468],"productstags":[1435,1474,1475,1476,1477,1478,1479],"standard-category":[],"class_list":["post-2894","products","type-products","status-publish","hentry","products-categories-paper-board-tester","productstags-gelbo-flex-resistance-tester","productstags-hydrolytic-resistance-of-glass-grains","productstags-ink-layer-abrasion-resistance-tester","productstags-needle-puncture-resistance","productstags-needle-puncture-resistance-test","productstags-needle-puncture-resistance-test-for-rubber-stopper","productstags-needle-puncture-resistance-test-for-vial-stopper"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/products\/2894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/types\/products"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/products\/2894\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/media?parent=2894"}],"wp:term":[{"taxonomy":"products-categories","embeddable":true,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/products-categories?post=2894"},{"taxonomy":"productstags","embeddable":true,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/productstags?post=2894"},{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/standard-category?post=2894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}