{"id":589,"date":"2026-02-26T05:44:05","date_gmt":"2026-02-26T05:44:05","guid":{"rendered":"https:\/\/www.teartester.com\/?post_type=method&p=589"},"modified":"2026-02-27T08:59:17","modified_gmt":"2026-02-27T08:59:17","slug":"tear-strength-test","status":"publish","type":"method","link":"https:\/\/www.teartester.com\/lv\/method\/tear-strength-test\/","title":{"rendered":"P\u0101rrau\u0161anas iztur\u012bbas tests"},"content":{"rendered":"

ASTM D624 defin\u0113tie test\u0113\u0161anas principi<\/h2>\n\n\n\n

ASTM D624<\/a> raksturo pl\u012bsuma iztur\u012bbu k\u0101 maksim\u0101lo sp\u0113ku, kas nepiecie\u0161ams pl\u012bsuma p\u0101rrau\u0161anai, ierosin\u0101\u0161anai vai izplat\u012b\u0161anai, dalot to ar parauga biezumu. Testa laik\u0101 stiepes iztur\u012bbas testeris pieliek nemain\u012bgu krustgalvas \u0101trumu, l\u012bdz gumijas paraugs piln\u012bb\u0101 p\u0101rpl\u012bst.<\/p>\n\n\n\n

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\"P\u0101rrau\u0161anas<\/figure>\n<\/div>\n\n\n\n
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Gumijas un elastom\u0113ru stiepes iztur\u012bbas tests<\/h2>\n\n\n\n

A iztur\u012bbas pret pl\u012bsumiem tests<\/strong> piem\u0113ro kontrol\u0113tu stiepes deform\u0101ciju sagatavotam paraugam, izmantojot stiepes test\u0113\u0161anas iek\u0101rtu. Tests turpin\u0101s, l\u012bdz notiek piln\u012bgs pl\u012bsums. T\u0101 k\u0101 gumijai un elastom\u0113riem rakstur\u012bga sare\u017e\u0123\u012bta deform\u0101cijas uzved\u012bba, ASTM D624 uzsver konsekventu paraugu sagatavo\u0161anu, izl\u012bdzin\u0101\u0161anu un testa \u0101trumu, lai nodro\u0161in\u0101tu atk\u0101rtojamus rezult\u0101tus.<\/p>\n\n\n\n

Ir svar\u012bgi atz\u012bm\u0113t, ka gumija un elastom\u0113ri<\/strong> rea\u0123\u0113 uz pl\u012bsumiem at\u0161\u0137ir\u012bgi atkar\u012bb\u0101 no sast\u0101va, saciet\u0113\u0161anas, pildvielas satura un orient\u0101cijas. T\u0101p\u0113c ASTM D624 defin\u0113 vair\u0101kus paraugu veidus, no kuriem katrs ir veidots t\u0101, lai atspogu\u013cotu at\u0161\u0137ir\u012bgu pl\u012b\u0161anas meh\u0101nismu, nevis vienu univers\u0101lu v\u0113rt\u012bbu.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Parauga sagatavo\u0161ana un testa proced\u016bra<\/h2>\n\n\n\n

Prec\u012bza iztur\u012bbas pret pl\u012bsumiem test\u0113\u0161ana s\u0101kas ar r\u016bp\u012bgu parauga sagatavo\u0161anu. Gumijas paraugiem j\u0101b\u016bt vien\u0101da biezuma, t\u012br\u0101m mal\u0101m un prec\u012bzai \u0123eometrijai. Jebkura nevienm\u0113r\u012bba var b\u016btiski ietekm\u0113t testa rezult\u0101tus.<\/p>\n\n\n\n

Uzst\u0101diet paraugu stiepes test\u0113\u0161anas ma\u0161\u012bnas rokturiem centr\u0101li, nodro\u0161inot pareizu izl\u012bdzin\u0101\u0161anu, lai izvair\u012btos no lieces vai v\u0113rpes sp\u0113ka. Pielikt stiepes slodzi ar nor\u0101d\u012bto konstantu \u0101trumu, l\u012bdz p\u0101rrau\u0161ana ir pabeigta. Re\u0123istr\u0113 sp\u0113ka un p\u0101rvietojuma l\u012bkni un nosaka maksim\u0101lo vai vid\u0113jo sp\u0113ku atbilsto\u0161i izv\u0113l\u0113tajam parauga tipam.<\/p>\n<\/div>\n\n\n\n

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\"Gumijas<\/figure>\n<\/div>\n<\/div>\n\n\n\n

K\u0101p\u0113c gumijas lietojumiem ir svar\u012bga stiepes iztur\u012bbas test\u0113\u0161ana?<\/h2>\n\n\n\n

Ekspluat\u0101cijas laik\u0101 gumijas izstr\u0101d\u0101jumi reti kad saboj\u0101jas tikai vienm\u0113r\u012bgas izstiep\u0161an\u0101s d\u0113\u013c. T\u0101 viet\u0101 boj\u0101jumi bie\u017ei s\u0101kas as\u0101s mal\u0101s, iestr\u0101d\u0101taj\u0101s da\u013ci\u0146\u0101s vai lokaliz\u0113tos sprieguma punktos. P\u0101rrau\u0161anas iztur\u012bbas test\u0113\u0161ana pal\u012bdz in\u017eenieriem saprast, cik \u0101tri un viegli var rasties pl\u012bsums, tikl\u012bdz tas ir s\u0101cies.<\/p>\n\n\n\n

Kvalit\u0101tes kontroles komand\u0101m p\u0101rrau\u0161anas iztur\u012bbas tests pal\u012bdz sal\u012bdzin\u0101t materi\u0101lus, kontrol\u0113t procesus un veikt ien\u0101ko\u0161\u0101s p\u0101rbaudes. Izstr\u0101d\u0101jumu konstruktoriem tas sniedz ieskatu par materi\u0101la piem\u0113rot\u012bbu sare\u017e\u0123\u012btiem lietojumiem, piem\u0113ram, dinamiskiem bl\u012bv\u0113jumiem vai nodilumiztur\u012bg\u0101 vid\u0113.<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":true},"class_list":["post-589","method","type-method","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.teartester.com\/lv\/wp-json\/wp\/v2\/method\/589","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.teartester.com\/lv\/wp-json\/wp\/v2\/method"}],"about":[{"href":"https:\/\/www.teartester.com\/lv\/wp-json\/wp\/v2\/types\/method"}],"wp:attachment":[{"href":"https:\/\/www.teartester.com\/lv\/wp-json\/wp\/v2\/media?parent=589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}