1. Matsi na yau da kullun (PN)
Matsi na yau da kullun nabawul ɗin malam buɗe idoƙimar tunani ce da ta shafi ƙarfin juriyar matsin lamba na sassan tsarin bututun. Yana nufin ƙirar matsin lamba da aka bayar dangane da ƙarfin injinan sassan bututun.
Matsi na bawul ɗin malam buɗe ido shine ƙarfin juriyar matsin lamba na samfurin (waɗannan su ne bawuloli) a zafin tushe. Kayayyaki daban-daban suna da yanayin zafi daban-daban na tushe da ƙarfin matsin lamba.
Matsi na asali, wanda alamar PN (MPa) ke wakilta. PN alama ce ta haɗin haruffa da lambobi da ake amfani da su don tunani dangane da halayen injiniya da halayen girma na sassan tsarin bututu.
Idan matsin lamba na asali shine 1.0MPa, yi rikodin shi azaman PN10. Ga ƙarfe da jan ƙarfe, zafin da aka ambata shine 120°C: ga ƙarfe, yana 200°C kuma ga ƙarfe mai ƙarfe, yana 250°C.
2. Matsi a aiki (Pt)
Matsin aiki nabawul ɗin malam buɗe idoyana nufin matsakaicin matsin lamba da aka ƙayyade bisa ga zafin aiki na ƙarshe na kowane matakin na hanyar jigilar bututun don aminci na tsarin bututun. A taƙaice dai, matsin lamba na aiki shine matsakaicin matsin lamba da tsarin zai iya jurewa yayin aiki na yau da kullun.
3. Matsin ƙira (Pe)
Matsin lamba na bawul ɗin malam buɗe ido yana nufin matsakaicin matsin lamba nan take da tsarin bututun matsi ke yi a bangon ciki na bawul ɗin. Ana amfani da matsin lamba na ƙira tare da zafin ƙira mai dacewa azaman yanayin nauyin ƙira, kuma ƙimarsa ba za ta yi ƙasa da matsin lamba na aiki ba. Gabaɗaya, mafi girman matsin lamba da tsarin zai iya ɗauka ana zaɓar shi yayin lissafin ƙira azaman matsin lamba na ƙira.
4. Matsi na gwaji (PS)
Ga bawuloli da aka sanya, matsin lambar gwajin bawuloli na malam buɗe ido yana nufin matsin lambar da bawuloli dole ne su kai lokacin yin gwajin ƙarfin matsi da matse iska.
5. Alaƙa tsakanin waɗannan ma'anoni guda huɗu
Matsi na yau da kullun yana nufin ƙarfin matsi a zafin tushe, amma a lokuta da yawa, ba ya aiki a zafin tushe. Yayin da zafin yake canzawa, ƙarfin matsi na bawul ɗin shima yana canzawa.
Ga samfurin da ke da wani matsin lamba na musamman, matsin lambar aiki da zai iya jurewa ana tantance shi ta hanyar zafin aiki na matsakaici.
Matsi na asali da matsin lamba na aiki da aka yarda da shi na samfurin iri ɗaya zai bambanta a yanayin zafi daban-daban na aiki. Daga mahangar aminci, matsin lambar gwaji dole ne ya fi matsin lamba na asali.
A fannin injiniyanci, matsin lamba na gwaji> matsin lamba na musamman> matsin lamba na ƙira> matsin lamba na aiki.
Kowannebawul ciki har dabawul ɗin malam buɗe ido, bawul ɗin ƙofa da bawul ɗin duba daga bawul ɗin ZFA dole ne a gwada matsin lamba kafin a jigilar su, kuma matsin lambar gwajin ya fi ko daidai da mizanin gwajin. Gabaɗaya, matsin lambar gwajin jikin bawul ɗin ya ninka matsin lamba na asali sau 1.5, kuma hatimin ya ninka matsin lamba na asali sau 1.1 (lokacin gwajin bai gaza mintuna 5 ba).