Te kaha kume me te roa o tepepa parahiE rua ngā tohu āhuatanga ā-tinana nui, ā, he whanaungatanga kei waenganui i a rāua, e pā tika ana ki te kounga me te pono o te pepa parahi.
Ko te kaha kume e pā ana ki te kaha o te pepa parahi ki te ātete i te pakaru kume i raro i te mahi a te kaha, e whakaatuhia ana i roto i ngā megapascals (MPa). Ko te whakaroa e pā ana ki te kaha o te rauemi ki te pa ki te whakarerekētanga kirihou i te wā o te tukanga totoro, e whakaatuhia ana hei ōrau. Ko te kaha kume me te whakaroa opepa parahika pāngia ngātahitia e te matotoru me te rahi o te kōhao, ā, me whakauru te ōwehenga matotoru-rahi kōhao kore-ahu (T/D) hei tawhā whakatairite i roto i te whakaahuatanga o tēnei pānga rahi. He rerekē te tauira rerekētanga o te kaha kume i roto i ngā awhe ōwehenga matotoru-rahi kōhao rerekē, ko te roanga ia ka heke me te whakaiti i te matotoru ina rite te ōwehenga matotoru-rahi kōhao.
I roto i ngā mahi whaihua, pērā i te hanga opapa hiko tānga(PCB), mā ngā paerewa whaitake mō te kaha kume me te roa ka taea te whakarite kia kore te hua e pakaru, e rerekē rānei i te wā e whakamahia ana, ā, mā reira ka whakarite i te kounga me te pono o te hua. Mō te whakamātautau kume o te pepa parahi, he maha ngā paerewa me ngā tikanga hei whakatau i ēnei āhuatanga, pērā i te paerewa IPC-TM-650 2.4.18.1A, i hangaia mō te pepa parahi o ngā papa ara iahiko tā, ā, e whakarato ana i ngā tikanga me ngā tohu whakamātautau taipitopito.
I te whakamātautau i te kaha kume me te roa o te pepa parahi, ko ngā mea hei whakaaroaro ko te rahi o te tauira, te tere whakamātautau, ngā āhuatanga pāmahana, me ētahi atu. Hei tauira, ko te paerewa ASTM E345-16 e whakarato ana i ngā tikanga mō te whakamātautau kume o te pepa whakarewa, tae atu ki ngā tawhā taipitopito pērā i te rahi o te tauira, te tere whakamātautau, me ētahi atu. I tētahi atu taha, ko te paerewa GB/T 5230-1995 e whakarite ana i ngā whakaritenga whakamātautau mō te pepa parahi hiko, tae atu ki te rahi o te tauira, te roa o te ine, te tawhiti i waenga i ngā whakapiri, me te tere whakapiri mīhini whakamātautau.
Hei whakarāpopototanga, ko te kaha kume me te roa o te pepa parahi he tohu matua mō te ine i ōna āhuatanga ā-tinana, ā, he mea nui te whanaungatanga me ngā tikanga whakamātautau hei whakarite i te kounga me te mahi tono opepa parahingā rauemi.
Wā tuku: 27 o Ākuhata-2024