A cikin 1930s, damalam buɗe idoan halicce shi a Amurka, kuma a cikin 1950s, an gabatar da shi zuwa Japan. Duk da yake ba a saba amfani da shi ba a Japan har zuwa shekarun 1960, ba a san shi sosai ba sai a shekarun 1970.
Siffofin maɓalli na bawul ɗin malam buɗe ido sune haskensa, ƙaramin sawun shigarwa, da ƙarancin ƙarfin aiki. Bawul ɗin malam buɗe ido yana auna kusan 2T, yayin da bawul ɗin ƙofar yana auna kusan 3.5T, ta amfani da DN1000 a matsayin misali. Bawul ɗin malam buɗe ido yana da ƙaƙƙarfan matakin dorewa da dogaro kuma yana da sauƙi don haɗawa tare da hanyoyin tuƙi daban-daban. Sakamakon bawul ɗin malam buɗe ido na roba wanda aka rufe shi ne, lokacin da aka yi amfani da shi ba daidai ba a matsayin bawul ɗin tsutsawa, cavitation zai faru, yana sa kujerar roba ta bawo kuma ta lalace. Zaɓin daidai, saboda haka, ya dogara da buƙatun yanayin aiki. Adadin kwarara da gaske yana canzawa a layi a matsayin aikin buɗe bawul ɗin malam buɗe ido.
Idan aka yi amfani da shi don daidaita kwararar ruwa, halayensa na gudana suna da alaƙa da juriyar kwararar bututun. Matsakaicin kwararar bawuloli, alal misali, zai bambanta sosai idan an sanya bututu guda biyu tare da diamita iri ɗaya da nau'i, amma nau'ikan asarar bututu daban-daban. Wataƙila cavitation zai iya faruwa a bayan farantin bawul yayin da bawul ɗin ke cikin matsayi mai nauyi, wanda zai iya cutar da bawul ɗin. sau da yawa ana amfani da shi a waje a 15°.
Themalam buɗe idoYana samar da wani yanayi daban lokacin da yake tsakiyar buɗewar sa, lokacin da ƙarshen farantin malam buɗe ido da jikin bawul ɗin suna tsakiya akan mashin bawul. Ƙarshen gaban farantin malam buɗe ido yana tafiya iri ɗaya.
A sakamakon haka, da bawul jiki ta gefe daya da kumabawulfarantin yana haɗuwa don samar da bututun ƙarfe mai kama da bututun ƙarfe, yayin da ɗayan gefen yayi kama da magudanar ruwa. Gask ɗin roba ya ware. Juyin aiki na bawul ɗin malam buɗe ido ya bambanta bisa ga yanayin buɗewa da rufewa. Saboda zurfin ruwa, ƙarfin da aka samar ta hanyar bambance-bambance tsakanin sama da ƙananan kawunan ruwa na shaft ɗin bawul ba za a iya watsi da su ba don bawul ɗin malam buɗe ido na kwance, musamman manyan bawul ɗin diamita.
Bugu da ƙari, ƙwanƙwasa son zuciya za ta kasance kuma ƙarfin zai tashi lokacin da aka saka gwiwar hannu a gefen mashiga na bawul. Saboda tasirin tasirin ruwa mai gudana lokacin da bawul ɗin ke tsakiyar buɗewa, aikin aikin dole ne ya kasance mai kulle kansa.
Lokacin aikawa: Nuwamba-17-2022