{"id":9865,"date":"2026-02-24T15:11:46","date_gmt":"2026-02-24T07:11:46","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/astm-d751\/"},"modified":"2026-04-16T09:53:21","modified_gmt":"2026-04-16T01:53:21","slug":"astm-d751","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/uz\/standard\/astm-d751\/","title":{"rendered":"ASTM D751"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Qoplangan matolarni sinov usuli bo'yicha umumiy ma'lumot<\/h2>\n\n\n\n<p>The <strong data-start=\"927\" data-end=\"956\">Qoplangan mato sinov usuli<\/strong> ASTM D751 qoplangan matolarning jismoniy xususiyatlarini baholash uchun bir nechta asosiy usullarni o'z ichiga oladi. Ularga tortish kuchiga chidamlilikni aniqlash uchun grab sinovi, uzilish paytida cho'zilish, portlash kuchiga chidamlilik sinovlari, teshilishga chidamlilik va yirtilish kuchiga baho berish kiradi. Ushbu usullar materialning mexanik kuchlanishlarga bardosh bera olish qobiliyatini aniqlashga yordam beradi va real sharoitda qoplangan matolarning sifatini hamda ishonchliligini ta'minlashda muhim ahamiyatga ega.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sinov kuchini aniqlash testi: Tushirish testi usuli<\/h2>\n\n\n\n<p>The <strong data-start=\"2779\" data-end=\"2799\">Tutib ko'rish sinov usuli<\/strong> aniqlash uchun eng keng qo'llaniladigan usullardan biridir <strong data-start=\"2862\" data-end=\"2883\">Sinish kuchi<\/strong> Qoplangan matolarning. Ushbu sinov matoning tortish yukiga duchor bo'lganda yorilishiga sabab bo'ladigan kuchni o'lchaydi. Yorilish kuchi og'ir yuklama talab qiladigan ilovalar, masalan, og'ir qadoqlash yoki himoya matolari uchun materiallarning asosiy ish faoliyati ko'rsatkichidir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong data-start=\"3149\" data-end=\"3187\">Tutqich sinovi usuli bo'yicha protsedura<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong data-start=\"3191\" data-end=\"3216\">Namuna tayyorlash:<\/strong> Namuna ma'lum o'lchamga kesiladi, odatda kengligi 102 mm (4 dyuym) va uzunligi 152 mm (6 dyuym). Keyin mato sinov mashinasiga joylashtirilib, to'g'ri yo'naltirilganiga ishonch hosil qilinadi.<\/li>\n\n\n\n<li><strong data-start=\"3412\" data-end=\"3430\">Mashina sozlamalari:<\/strong> Namuna ikkala uchidan qisib qo'yilgan va mashina 5 \u00b1 0,2 mm\/s (12 \u00b1 0,5 dyuym\/min) tezlikda bir xil tortish kuchini qo'llaydi.<\/li>\n\n\n\n<li><p data-start=\"3567\" data-end=\"3742\"><strong data-start=\"3567\" data-end=\"3583\">O&#039;lchov:<\/strong> Uskuna mato sinib ketguncha unga qo'llanilgan kuchni qayd etadi, mato xususiyatlari haqida muhim ma'lumotlar beradi. <strong data-start=\"3693\" data-end=\"3713\">Cho'zilish mustahkamligi<\/strong> va <strong data-start=\"3718\" data-end=\"3741\">Sinishdagi cho'zilish<\/strong>.<\/p><\/li>\n<\/ol>\n\n\n\n<p>Grab test usuli natijalari matoning mustahkamligi, xususan tashqi kuchlar ta'sirida yirtilishga qarshiligi haqida ma'lumot beradi. Himoya qadoqlash yoki ochiq havodagi matolar kabi ilovalar uchun yuqori tortilish kuchi materialning og'ir foydalanishga bardosh bera olishini ta'minlash uchun zarurdir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sinishdagi cho'zilish<\/h2>\n\n\n\n<p><strong data-start=\"1980\" data-end=\"1994\">Cho'zilish<\/strong> Matoning uzilishidan oldin cho'zilish qobiliyatini o'lchaydi. Bu qadoqlash materiallari uchun ayniqsa muhim, chunki yuqori cho'ziluvchanlikka ega matolar ko'proq kuchlanishni yutib, tashish va ishlash paytida shikastlanishning oldini oladi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cho'zilishni o'lchash tartibi:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tutib tortish sinovini o'tkazgandan so'ng, cho'zilish matoning uzunligi foizga oshgani sifatida hisoblanadi.<\/li>\n\n\n\n<li>To'qimaning umumiy ishlashini aniqlash uchun cho'zilish natijalari bir nechta sinov namunalarida o'rtacha hisoblanadi.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Portlash kuchi testi<\/h2>\n\n\n\n<p>The <strong data-start=\"2531\" data-end=\"2557\">portlash kuchi sinovi<\/strong> Qoplangan mato gidravlik yoki mexanik bosim ostida yorilish bosimini o'lchaydi. Bu sinov yuqori bosimli muhitga chidamli bo'lishi kerak bo'lgan qadoqlash materiallari uchun juda muhimdir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Portlash kuchiga sinov usullari:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong data-start=\"5427\" data-end=\"5449\" style=\"background-color: rgba(75, 79, 88, 0.2); font-size: 1rem;\">Shar portlash usuli:<\/strong><span style=\"background-color: rgba(75, 79, 88, 0.2); font-size: 1rem;\"> Yaltiratilgan po'lat shar matoga bosim o'tkazadi, u yorilguncha. Bu usul matoning keskin, mahalliy bosimga qarshiligini o'lchaydi.<\/span><\/li>\n\n\n\n<li><strong data-start=\"5599\" data-end=\"5626\" style=\"font-size: 1rem;\">Diafragma portlash usuli:<\/strong><span style=\"font-size: 1rem;\"> Gidravlik bosim tizimi matoning ostidagi diafragmani shishiradi va u yorilguncha bosimni oshiradi. Ushbu usul matoning katta yuzada bosimni qabul qilish qobiliyatini taqlid qiladi.<\/span><\/li>\n<\/ol>\n\n\n\n<p><span style=\"background-color: rgba(75, 79, 88, 0.2); font-size: 1rem;\">Ikkala usul ham matoning tuzilishiga oid tushunchalar beradi. <\/span><strong data-start=\"5877\" data-end=\"5898\" style=\"font-size: 1rem;\">portlash kuchi<\/strong><span style=\"background-color: rgba(75, 79, 88, 0.2); font-size: 1rem;\">, bu ichki bosimlarga duchor bo'ladigan materiallar, masalan, muhrlangan oziq-ovqat qadoqlari yoki tibbiy sumkalar uchun zarurdir.<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mato yirtish mustahkamligi sinovi<\/h2>\n\n\n\n<p><strong data-start=\"6943\" data-end=\"6960\">Yirtish kuchi<\/strong> Matoning bosim ostida yirtilishga qarshiligini o'lchaydi. Qadoqlash va to'qimachilikda ishlatiladigan qoplangan matolar qo'l bilan ishlash, tashish va qattiq sharoitlarga chidash uchun yetarli darajada yirtilish mustahkamligiga ega bo'lishi kerak.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Yosh test usullari:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p data-start=\"7190\" data-end=\"7359\"><strong data-start=\"7190\" data-end=\"7215\">Pendulum sinov usuli:<\/strong> Pendulum mato'ga yirtilguncha kuch qo'llaydi. Bu usul mato'ning dinamik yuklanish sharoitida yirtilishga qarshiligini o'lchaydi.<\/p><\/li>\n\n\n\n<li><p data-start=\"7190\" data-end=\"7359\"><strong data-start=\"7363\" data-end=\"7391\" style=\"font-size: 1rem;\">Tilli yoriq sinov usuli:<\/strong><span style=\"font-size: 1rem;\"> Namuna til shaklida kesiladi va mato yirtish uchun kuch qo'llanadi. Yirtishni boshlash va davom ettirish uchun zarur bo'lgan kuch qayd etiladi.<\/span><\/p><\/li>\n<\/ol>\n\n\n\n<p>Ikkala usul ham matoning baholashga yordam beradi. <strong data-start=\"7580\" data-end=\"7597\">Yirtish mustahkamligi<\/strong>, odatiy ishlash sharoitida erta yirtilmasdan bardosh berishini ta'minlaydi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Teshilishga chidamlilik testi: o'tkir buyumlardan himoya qilish<\/h2>\n\n\n\n<p>The <strong data-start=\"6101\" data-end=\"6129\">Teshilishga chidamlilik testi<\/strong> Matoning o'tkir buyumlar bilan teshib o'tishga qarshi turish qobiliyatini o'lchaydi, bu nozik mahsulotlarni shikastlanishdan himoya qilishi kerak bo'lgan qadoqlash materiallari uchun muhim xususiyatdir. Ushbu sinov odatda moslashuvchan qadoqlash, tibbiy qadoqlash yoki himoya kiyimi kabi materiallar uchun qo'llaniladi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Teshilishga chidamlilik sinov tartibi:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p data-start=\"6456\" data-end=\"6565\">A <strong data-start=\"6458\" data-end=\"6481\">tesuvchi asbob<\/strong>, tekis ucli tornavida shaklidagi asbob matoga kuch qo'llaydi, u teshib ketguncha.<\/p><\/li>\n\n\n\n<li><p data-start=\"6456\" data-end=\"6565\"><span style=\"font-size: 1rem;\">Matoni teshib o'tish uchun zarur kuch qayd etiladi, bu esa materialning o'tkir buyumlarga qarshi qarshiligiga oid qimmatli ma'lumotlarni taqdim etadi.<\/span><\/p><\/li>\n<\/ol>\n\n\n\n<p>Yuqori teshib o'tishga chidamlilik darajasi oziq-ovqat, farmatsevtika yoki elektronika kabi sanoat sohalarida ishlatiladigan qadoqlash materiallari uchun zarur, chunki teshib o'tish tufayli zarar ko'rish xavfi sezilarli darajada yuqori.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Trapezoidal yirtish testi: yirtilishga chidamlilikni ilg'or baholash<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Sinov tartibi:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p data-start=\"8019\" data-end=\"8136\">To'rtburchak mato namunasiga trapetsiya shaklida kesik qilinadi va kesik bo'ylab mato yirtish uchun kuch qo'llanadi.<\/p><\/li>\n\n\n\n<li><p data-start=\"8019\" data-end=\"8136\"><span style=\"font-size: 1rem;\">Matoni yirtish uchun zarur kuch o'lchanadi, bu uning yirtilishga chidamliligini batafsil ko'rsatadi.<\/span><\/p><\/li>\n<\/ol>\n\n\n\n<p>Ushbu test matoning bosim ostida chidamliligi eng muhim bo'lgan qadoqlash va to'qimachilik sohalarida keng qo'llaniladi.<\/p>\n\n\n\n<p>ASTM D751 sinov o'tkazish uchun keng qamrovli ramkani taqdim etadi. <strong data-start=\"8474\" data-end=\"8522\">Qoplangan matolarning ishlash xususiyatlari va chidamliligi<\/strong>. dan <strong data-start=\"8533\" data-end=\"8553\">Tutib ko'rish sinov usuli<\/strong> sinish kuchiga qadar <strong data-start=\"8583\" data-end=\"8611\">Teshilishga chidamlilik testi<\/strong> Keskin buyumlarga chidamlilik bo'yicha har bir sinov usuli materialning mo'ljallangan qo'llanilishiga mosligini ta'minlashda muhim ahamiyatga ega. Qoplangan matolar xavfsizlik va ishlash bo'yicha sanoat standartlariga javob berishini kafolatlash uchun puxta sinovdan o'tkazilishi kerak.<\/p>\n\n\n\n<p>Soha mutaxassislari uchun foydalanish <strong data-start=\"8905\" data-end=\"8939\">Cell Instruments\u2019 ko'z yoshi sinovchilari<\/strong> va <strong data-start=\"8944\" data-end=\"8963\"><a href=\"https:\/\/www.packqc.com\/uz\/products\/sale-packaging-tensile-strength-tester-film\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cho'zish sinov qurilmalari<\/a><\/strong> ASTM D751 standartlariga muvofiq aniq va ishonchli natijalar olinishini ta'minlaydi. Ushbu asbob-uskunalar ishlab chiqaruvchilarga real dunyoning qattiq talablariga bardosh bera oladigan yuqori sifatli qoplangan matolar ishlab chiqarishda yordam beradi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tBiz bilan bog'laning va ASTM D751 sinov yechimini oling\t\t\t\t<\/h2>\n\n\n\n<p>Savol: ASTM D751 asosan nimaga mo'ljallangan?<br>A: ASTM D751 asosan qoplangan matolarning xususiyatlarini sinash uchun ishlatiladi, jumladan uzilish kuchi, cho'zilish, portlash kuchi, yirtilish kuchi va teshib o'tishga chidamlilik kabi sinovlarni o'z ichiga oladi.<\/p>\n\n\n\n<p>Savol: ASTM D751dagi \u201cGrab Test Method\u201d nima?<br>A: Grab sinov usuli qoplamali matolarning uzilish kuchini aniqlash uchun ishlatiladi. Matoning namunasi qisqichlar orasida ushlab turiladi va unga bir xil tortish kuchi matoning uzilishigacha qo'llanadi, shu orqali uning kuchi o'lchanadi.<\/p>\n\n\n\n<p>Savol: Qoplangan matolarning portlash kuchi ASTM D751 bo'yicha qanday sinovdan o'tkaziladi?<br>A: Qoplangan matolarning portlash kuchini \u201cShar portlash usuli\u201d yoki \u201cDiaphragma portlash usuli\u201d yordamida sinash mumkin, bunda matoga perpendikulyar bosim qo'llanib, u yorilguncha davom ettiriladi. Talab qilinadigan bosim matoning portlash kuchi sifatida qayd etiladi.<\/p>\n\n\n\n<p>Savol: \u201cPuncture Resistance Testing\u201d nima?<br>A: Teshilishga chidamlilik sinovi qoplamali matolarning teshilishga qarshi turish qobiliyatini o'lchaydi. Matoni teshib o'tish uchun dumaloq uchli asbob ishlatiladi va matoni teshib o'tish uchun zarur kuch uning teshilishga chidamliligini baholash uchun o'lchanadi.<\/p>\n\n\n\n<p>Savol: \u201cTezil sinovi\u201d va \u201cyirtilish mustahkamligi\u201d o'rtasidagi munosabat nima? <a href=\"https:\/\/store.astm.org\/d0751-19.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D751<\/a>?<br>A: tortish sinovi matoni cho'zilganda uning mustahkamligini o'lchaydi, yirtilish mustahkamligi sinovi esa matoning yirtilishga qarshiligini aniqlaydi. Ikkala sinov ham matoning turli bosimlar ostidagi ishlashini baholashga yordam beradi.<\/p>","protected":false},"excerpt":{"rendered":"<p>Coated Fabric Test Method Overview The Coated Fabric Test Method in ASTM D751 involves several key procedures for evaluating the physical properties of coated fabrics. These include the grab test method for breaking strength, the elongation at break, bursting strength tests, puncture resistance, and tear strength evaluations. These methods help determine the material&#8217;s ability to [&hellip;]<\/p>","protected":false},"featured_media":8089,"parent":0,"template":"","meta":{"_acf_changed":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"standard-category":[611],"class_list":["post-9865","standard","type-standard","status-publish","has-post-thumbnail","hentry","standard-category-astm"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/uz\/wp-json\/wp\/v2\/standard\/9865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/uz\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/uz\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/uz\/wp-json\/wp\/v2\/media\/8089"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/uz\/wp-json\/wp\/v2\/media?parent=9865"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/uz\/wp-json\/wp\/v2\/standard-category?post=9865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}