{"id":718,"date":"2026-10-28T21:32:22","date_gmt":"2026-10-28T13:32:22","guid":{"rendered":"https:\/\/siliconcarbide.net\/?p=718"},"modified":"2026-10-28T21:32:22","modified_gmt":"2026-10-28T13:32:22","slug":"termokuplu-qoruyucu-borular-sus%c9%99-sobalarinda-niy%c9%99-tez-siradan-cixir-v%c9%99-ya-movqeyini-itirir","status":"publish","type":"post","link":"https:\/\/siliconcarbide.net\/az\/why-thermocouple-protection-tubes-fail-early-or-drift-in-glass-furnaces\/","title":{"rendered":"Termokupl qoruyucu borular\u0131 \u015f\u00fc\u015f\u0259 sobalar\u0131nda niy\u0259 tez s\u0131radan \u00e7\u0131x\u0131r v\u0259 ya m\u00f6vqeyini itirir?"},"content":{"rendered":"<p dir=\"auto\"><strong>Termokupl qoruyucu borular\u0131 \u015f\u00fc\u015f\u0259 sobalar\u0131nda niy\u0259 tez s\u0131radan \u00e7\u0131x\u0131r v\u0259 ya m\u00f6vqeyini itirir?<\/strong><\/p>\n<p dir=\"auto\">On iki il \u0259rzind\u0259 \u015f\u00fc\u015f\u0259 \u0259ridm\u0259 \u0259m\u0259liyyatlar\u0131na d\u0259st\u0259k verdikd\u0259n sonra t\u0259krarlanan problem odur ki, termoc\u00fct oxunu\u015flar\u0131 t\u0259dric\u0259n sap\u0131r v\u0259 ya qoruyucu boru planla\u015fd\u0131r\u0131lm\u0131\u015f kampaniyadan xeyli \u0259vv\u0259l s\u0131radan \u00e7\u0131x\u0131r. Soban\u0131n temperaturu sabitdir v\u0259 termoc\u00fct elementi d\u00fczg\u00fcn tipd\u0259 olsa da, g\u00f6st\u0259ril\u0259n temperatur onlarla d\u0259r\u0259c\u0259 d\u0259yi\u015fir v\u0259 ya boru \u015f\u00fc\u015f\u0259 x\u0259ttind\u0259 v\u0259 ya yanma kameras\u0131nda \u00e7atlay\u0131r v\u0259 ya inc\u0259lir. \u018fsas amill\u0259r q\u0259l\u0259vi buxarlar\u0131n v\u0259 ya \u0259ridilmi\u015f \u015f\u00fc\u015f\u0259nin korroziya s\u00fcr\u0259ti il\u0259 borunun material\u0131n\u0131n istilik ke\u00e7iriciliyidir; bunlar birlikd\u0259 h\u0259m xidm\u0259t m\u00fcdd\u0259tini, h\u0259m d\u0259 temperatur reaksiyas\u0131n\u0131n gecikm\u0259sini m\u00fc\u0259yy\u0259n edir.<\/p>\n<p dir=\"auto\">Alumina borular\u0131 (ad\u0259t\u0259n 99 % Al\u2082O\u2083) kimy\u0259vi stabilliyin\u0259 g\u00f6r\u0259 \u0259riy\u0259n \u015f\u00fc\u015f\u0259 v\u0259 alkali buxarlar\u0131n\u0131n t\u0259sirin\u0259 kifay\u0259t q\u0259d\u0259r davaml\u0131d\u0131r, lakin onlar\u0131n istilik ke\u00e7iriciliyi orta s\u0259viyy\u0259d\u0259dir (t\u0259xmin\u0259n 25\u201330 W\/m\u00b7K) v\u0259 termal \u015foka davaml\u0131l\u0131\u011f\u0131 m\u0259hduddur. Silikon karbid borular\u0131, x\u00fcsusil\u0259 sinterl\u0259nmi\u015f v\u0259 ya yenid\u0259n kristalla\u015fm\u0131\u015f n\u00f6vl\u0259ri, daha y\u00fcks\u0259k istilik ke\u00e7iriciliyin\u0259 (tez-tez 30\u201350 W\/m\u00b7K v\u0259 ya daha \u00e7ox) v\u0259 daha yax\u015f\u0131 z\u0259rb\u0259 m\u00fcqavim\u0259tin\u0259 malikdir ki, bu da cavab gecikm\u0259sini azald\u0131r, lakin b\u0259zi n\u00f6vl\u0259r g\u00fccl\u00fc q\u0259l\u0259vi atmosferl\u0259rd\u0259 s\u0259thi oksidl\u0259\u015fm\u0259 v\u0259 ya reaksiya ya\u015faya bil\u0259r. Koroziya q\u0259l\u0259vi oksidl\u0259rin borunun s\u0259thi il\u0259 reaksiyas\u0131 n\u0259tic\u0259sind\u0259 ba\u015f verir, a\u015fa\u011f\u0131 \u0259rim\u0259 n\u00f6qt\u0259sin\u0259 malik bir qat \u0259m\u0259l\u0259 g\u0259tirir ki, bu da t\u0259dric\u0259n h\u0259ll olur v\u0259 ya soyulur. Bat\u0131r\u0131lm\u0131\u015f m\u00f6vqel\u0259rd\u0259 h\u00fccum daha s\u00fcr\u0259tli gedir; tac v\u0259 ya \u00fcstqurulu\u015fda is\u0259 buxar\u0131n kondensl\u0259\u015fm\u0259si il\u0259 h\u0259yata ke\u00e7irilir. Divar\u0131n inc\u0259lm\u0259si mexaniki nasazl\u0131q riskini art\u0131r\u0131r, qal\u0131n v\u0259 ya a\u015fa\u011f\u0131 ke\u00e7iriciliy\u0259 malik divar is\u0259 \u00f6l\u00e7m\u0259nin vaxt sabitini art\u0131r\u0131r.<\/p>\n<p dir=\"auto\">1450\u20131500 \u00b0C temperaturada i\u015fl\u0259y\u0259n konteyner-\u015f\u00fc\u015f\u0259 sobas\u0131nda iki qapal\u0131 uclu qoruyucu boru 90 g\u00fcn \u0259rzind\u0259 krounun i\u00e7\u0259risind\u0259 yan-yana qura\u015fd\u0131r\u0131ld\u0131. Al\u00fcminia boru (ilkin divar qal\u0131nl\u0131\u011f\u0131 6 mm) \u0259n isti zonada orta hesabla 1,2 mm inc\u0259lm\u0259 v\u0259 yan\u0131c\u0131 y\u00fck\u00fc d\u0259yi\u015fdirildikd\u0259 \u00f6l\u00e7\u00fclm\u00fc\u015f zaman sabitinin t\u0259xmin\u0259n 45 saniy\u0259 oldu\u011funu g\u00f6st\u0259rdi. Sinterl\u0259nmi\u015f silikon karbid borusu (ilkin divar qal\u0131nl\u0131\u011f\u0131 5 mm) eyni \u015f\u0259raitd\u0259 0,7 mm inc\u0259lm\u0259 v\u0259 t\u0259xmin\u0259n 28 saniy\u0259lik zaman sabiti g\u00f6st\u0259rdi. H\u0259r iki boruda tam \u00e7at yaranmad\u0131. \u00c7\u0131xar\u0131ld\u0131qdan sonra al\u00fcminan\u0131n s\u0259thind\u0259 natrium v\u0259 kalium t\u0259rkibli nazik reaksiya qatlamas\u0131 yaranm\u0131\u015fd\u0131; silikon karbid s\u0259thind\u0259 is\u0259 m\u0259hdud alkali n\u00fcfuzlu nazik silika qab\u0131\u011f\u0131 m\u00f6vcud idi. Silikon karbid borusundan al\u0131nan temperatur g\u00f6st\u0259ricil\u0259ri proses d\u0259yi\u015fiklikl\u0259rini daha yax\u0131ndan izl\u0259yirdi, al\u00fcmina borusu is\u0259 kifay\u0259t q\u0259d\u0259r geri qal\u0131rd\u0131 v\u0259 bu, daha geni\u015f n\u0259zar\u0259t \u00f6l\u00fc zonas\u0131 t\u0259l\u0259b edirdi.<\/p>\n<p dir=\"auto\">Boru se\u00e7imi buna g\u00f6r\u0259 d\u0259 korroziyaya davaml\u0131l\u0131\u011f\u0131, istilik ke\u00e7iriciliyini v\u0259 divar qal\u0131nl\u0131\u011f\u0131n\u0131 konkret yer \u00fc\u00e7\u00fcn tarazlay\u0131r. Termokuplu qoruyucu boru \u015f\u00fc\u015f\u0259 sobas\u0131 korroziyas\u0131n\u0131n idar\u0259 edilm\u0259si \u00fc\u00e7\u00fcn praktik d\u0259yi\u015f\u0259nl\u0259r material\u0131n safl\u0131\u011f\u0131, s\u0131xl\u0131\u011f\u0131 v\u0259 alkali buxar\u0131 il\u0259 birba\u015fa \u015f\u00fc\u015f\u0259 t\u0259mas\u0131 aras\u0131ndak\u0131 m\u0259ruz qalma \u015f\u0259raitidir. Al\u00fcminia v\u0259 SiC termoc\u00fctl\u00fck \u00f6rt\u00fcy\u00fcn\u00fcn \u015f\u00fc\u015f\u0259 performans\u0131 laboratoriya korroziya m\u0259lumatlar\u0131na deyil, eyni soba \u015f\u0259raitind\u0259 divar itkisi v\u0259 cavab vaxt\u0131n\u0131n \u00f6l\u00e7\u00fclm\u0259si il\u0259 t\u0259sdiql\u0259nir. Termokupl boru \u00f6mr\u00fc \u0259riy\u0259n \u015f\u00fc\u015f\u0259 il\u0259 i\u015fl\u0259y\u0259rk\u0259n material istismar temperaturunda h\u0259m kimy\u0259vi t\u0259sirl\u0259r\u0259, h\u0259m d\u0259 termal \u015foka davam g\u0259tirdikd\u0259 uzan\u0131r. Oxunu\u015flar sapd\u0131qda v\u0259 ya borular erk\u0259n s\u0131radan \u00e7\u0131xd\u0131qda, bunu t\u0259sdiq ed\u0259n d\u0259lil divar qal\u0131nl\u0131\u011f\u0131 \u00f6l\u00e7m\u0259l\u0259ri v\u0259 m\u0259lum temperatur d\u0259yi\u015fm\u0259si zaman\u0131 m\u00fc\u015fahid\u0259 olunan vaxt gecikm\u0259sidir. Daha y\u00fcks\u0259k ke\u00e7iriciliy\u0259 malik, kifay\u0259t q\u0259d\u0259r korroziyaya davaml\u0131 borunun se\u00e7ilm\u0259si (tac m\u00fcqayis\u0259sind\u0259 inc\u0259lm\u0259nin 1,2 mm-d\u0259n 0,7 mm-\u0259 v\u0259 sabit vaxt\u0131n 45 s-d\u0259n 28 s-\u0259 azalmas\u0131 il\u0259 g\u00f6st\u0259rildiyi kimi) h\u0259m \u00f6l\u00e7m\u0259 cavabverliyini, h\u0259m d\u0259 \u015f\u00fc\u015f\u0259 sobas\u0131 xidm\u0259tind\u0259 i\u015f m\u00fcdd\u0259tini yax\u015f\u0131la\u015fd\u0131r\u0131r.<\/p>","protected":false},"excerpt":{"rendered":"<p>Why Thermocouple Protection Tubes Fail Early or Drift in Glass Furnaces After twelve years supporting glass melting operations, a repeated issue is that thermocouple readings gradually drift or the protection tube fails well before the scheduled campaign. The furnace temperature is stable and the thermocouple element is the correct type, yet the indicated temperature shifts&hellip;&nbsp;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[30],"tags":[],"class_list":["post-718","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/posts\/718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/comments?post=718"}],"version-history":[{"count":2,"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/posts\/718\/revisions"}],"predecessor-version":[{"id":720,"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/posts\/718\/revisions\/720"}],"wp:attachment":[{"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/media?parent=718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/categories?post=718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbide.net\/az\/wp-json\/wp\/v2\/tags?post=718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}