Nthawi zambiri pamakhala mabwenzi omwe samvetsa ubale womwe ulipo pakati pa mafotokozedwe a "DN", "Φ"ndi"". Lero, ndifotokoza mwachidule ubale wa pakati pa atatuwa, ndikuyembekeza kukuthandizani!
"inchi ndi chiyani"
Inch (“) ndi chipangizo chodziwika bwino chomwe chimagwiritsidwa ntchito kwambiri mu dongosolo la America, monga mapaipi achitsulo,mavavu, ma flange, zigongono, mapampu, ma tee, ndi zina zotero, monga momwe mfundo zake zilili 10″.
Inchi (inchi, chidule chake ngati mkati.) chimatanthauza chala chachikulu mu Chidatchi, ndipo inchi ndi kutalika kwa chala chachikulu. Zachidziwikire, kutalika kwa chala chachikulu nakonso n'kosiyana. M'zaka za m'ma 1300, Mfumu Edward Wachiwiri adalengeza "Standard Legal Inch". Lamulo ndilakuti kutalika kwa timbewu titatu tating'onoting'ono tomwe timasankhidwa pakati pa ngala za barele ndikukonzedwa motsatizana ndi inchi imodzi.
Kawirikawiri 1″=2.54cm=25.4mm
Kodi DN ndi chiyani?
DN ndi gawo lodziwika bwino lomwe limagwiritsidwa ntchito kwambiri ku China ndi machitidwe aku Europe, komanso ndi gawo lofotokozera mapaipi,mavavu, ma flange, zolumikizira, ndi mapampu, mongaDN250.
DN imatanthauza m'mimba mwake mwa chitoliro (chomwe chimadziwikanso kuti m'mimba mwake mwa dzina), dziwani: ichi si m'mimba mwake wakunja kapena m'mimba mwake wamkati, koma avareji ya m'mimba mwake wakunja ndi m'mimba mwake wamkati, wotchedwa m'mimba mwake wapakati.
Kodi ndi chiyaniΦ
Φ ndi chinthu chofala, chomwe chimatanthauza m'mimba mwake wakunja kwa mapaipi, kapena zigongono, chitsulo chozungulira ndi zipangizo zina.
Ndiye pali mgwirizano wotani pakati pawo?
Choyamba, matanthauzo olembedwa ndi """ ndi "DN" ali pafupifupi ofanana. Kwenikweni amatanthauza m'mimba mwake, kusonyeza kukula kwa mfundo iyi, ndiΦ ndi kuphatikiza kwa ziwirizi.
Mwachitsanzo
Mwachitsanzo, ngati chitoliro chachitsulo ndi DN600, ngati chitoliro chomwecho chachitsulo chalembedwa mainchesi, chimakhala mainchesi 24. Kodi pali kugwirizana kulikonse pakati pa ziwirizi?
Yankho ndi inde! Inchi yonse ndi nambala yonse ndipo yochulukitsidwa mwachindunji ndi 25 ikufanana ndi DN, monga 1″*25=DN25, 2″*25=50, 4″*25=DN100, ndi zina zotero. Zachidziwikire, pali zosiyana monga 3″*25=75 Kuzungulira ndi DN80, ndipo pali mainchesi ena okhala ndi ma semicolon kapena ma decimal point monga 1/2″, 3/4″, 1-1/4″, 1-1/2″, 2-1/2″, 3-1/2″ ndi zina zotero, izi sizingawerengedwe motere, koma kuwerengera kuli kofanana, makamaka mtengo wotchulidwa:
1/2″ = DN15
3/4″ = DN20
1-1/4″ = DN32
1-1/2″=DN40
2″ = DN50
2-1/2″=DN65
3″ = DN80
Nthawi yotumizira: Feb-03-2023
