Ƙarfin ƙarfi: wanda kuma aka sani da ƙarfin ƙarfi. Yana nufin ƙarfin da ake buƙata kowane yanki na yanki don roba don haɓaka zuwa wani tsayin daka, wato, don ƙarawa zuwa 100%, 200%, 300%, 500%. An bayyana a cikin N/cm2. Wannan muhimmin alama ce ta inji don auna ƙarfi da taurin roba. Girman darajarsa, mafi kyawun ƙarfin robar, yana nuna cewa irin wannan nau'in roba ba shi da sauƙi ga nakasar roba.
Juriya da hawaye: Idan samfuran roba suna da tsaga yayin amfani da su, za su fi tsagewa da ƙarfi kuma a ƙarshe za su goge. Don haka juriyar tsaga kuma shine mahimmin aikin injiniya don samfuran roba. Yawanci ana auna juriyar hawaye ne da ƙimar juriyar hawaye, wanda ke nufin ƙarfin da ake buƙata kowace raka'a kauri (cm) na roba don yage wurin da aka yanka har sai ya karye, ana auna shi da N/cm. Tabbas, mafi girman darajar, mafi kyau.
Adhesion da mannewa ƙarfi: Ƙarfin da ake buƙata don raba abubuwan haɗin gwiwa guda biyu na samfuran roba (kamar manne da zane ko zane da zane) ana kiransa adhesion. Girman mannewa yawanci ana auna shi ta ƙarfin mannewa, wanda aka bayyana azaman ƙarfin waje da ake buƙata ta kowane yanki lokacin da aka raba saman haɗin gwiwa biyu na samfurin. Naúrar lissafin shine N/cm ko N/2.5cm. Ƙarfin mannewa shine muhimmin alamar aikin injiniya a cikin samfuran roba da aka yi da auduga ko wasu yadudduka na fiber azaman kayan kwarangwal, kuma ba shakka, girman ƙimar, mafi kyau.
Sanya asara: wanda kuma aka sani da ƙayyadaddun rage lalacewa, shine babban alamar inganci don auna juriya na kayan roba, kuma akwai hanyoyi da yawa don aunawa da bayyana shi. A halin yanzu, kasar Sin galibi tana amfani da hanyar gwajin abrasion na Akron, wanda ya hada da gogayya tsakanin dabaran roba da daidaitaccen dabaran nika ( Shore 780) karkashin wani kusurwar karkata (150) da wani nau'i (2.72kg) don tantance lalacewa. adadin roba tsakanin wani bugun jini (1.61km), wanda aka bayyana a cikin cm3/1.61km. Ƙananan wannan darajar, mafi kyawun juriya na lalacewa na roba.
Karancin zafin jiki da zafin canjin gilashi: Waɗannan alamun inganci ne don ƙayyade juriya mai sanyi na roba. Rubber zai fara taurare ƙasa da sifili Celsius lokacin da aka sha, yana rage girmansa sosai; Yayin da zafin jiki ke ci gaba da raguwa, sannu a hankali yana taurare har ya kai ga bacewar elasticity ɗinsa gaba ɗaya, kamar gilashin, wanda ke da ƙarfi kuma yana da ƙarfi, kuma yana iya rushewa akan tasiri. Wannan zafin jiki ana kiransa yanayin canjin gilashin, wanda shine mafi ƙarancin zafin aiki don roba. A cikin masana'antu, ba a auna zafin canjin gilashin gabaɗaya (saboda dogon lokaci), amma ana auna zafin zafin. Yanayin zafin da roba ke fara karyewa bayan an daskare shi a ƙananan zafin jiki na wani ɗan lokaci kuma an yi shi da wani ƙarfi na waje ana kiransa zafin jiki. Matsakaicin zafin jiki yakan fi zafin canjin gilashin girma, kuma ƙarancin zafin jiki, mafi kyawun juriyar sanyi na wannan roba.
Zazzabi: Bayan robar ya yi zafi zuwa wani yanayin zafi, colloid zai tsage, kuma ana kiran wannan zafin jiki da zafin jiki. Wannan alama ce ta aiki don auna juriya na zafi na roba. Mafi girman yawan zafin jiki, mafi kyawun juriya na zafi na wannan roba. Ainihin kewayon zafin aiki na roba gabaɗaya yana tsakanin zafin jiki mai gatsewa da zafin zafi.
Anti kumburi dukiya: Wasu kayayyakin roba sukan yi cudanya da abubuwa kamar su acid, alkali, man fetur da sauransu yayin amfani da su, wanda hakan kan sa kayan roba ya yi faduwa, saman ya yi dunkulewa, sannan a kwashe kayayyakin. Ayyukan samfuran roba wajen tsayayya da tasirin acid, alkali, mai, da sauransu ana kiransa anti kumburi. Akwai hanyoyi guda biyu don auna juriyar kumburin roba: daya shine a nutsar da samfurin roba a cikin ruwa mai ruwa kamar acid, alkali, mai, da sauransu, sannan bayan wani yanayi mai zafi da lokaci, auna girmansa (ko girmansa). ƙimar; Karancin ƙimarsa, mafi kyawun juriya na roba don kumburi. Wata hanya kuma ita ce bayyana shi ta hanyar rabon ƙarfin daɗaɗɗen bayan nutsewa zuwa ƙarfin juzu'i kafin nutsewa, wanda ake kira juriya na acid (alkali) ko coefficient na juriya na mai; Girman wannan ƙididdiga, mafi kyawun juriya na roba ga kumburi.
Yawan tsufa: Matsakaicin tsufa alama ce ta aiki wanda ke auna juriyar tsufa na roba. An bayyana shi azaman rabo na kayan aikin jiki da na inji (ƙarfin ƙarfi ko samfurin ƙarfin ƙarfi da haɓakawa) na roba bayan tsufa a wani zafin jiki da kuma wani ɗan lokaci. Babban adadin tsufa yana nuna kyakkyawan juriyar tsufa na wannan roba.
Lokacin aikawa: Dec-06-2024
