Vavu m'mimba mwake Φ, m'mimba mwake DN, inchi” Kodi mungasiyanitse magawo awa?

Nthawi zambiri pamakhala abwenzi omwe samamvetsetsa ubale womwe ulipo pakati pa "DN", "Φ” ndi “”.” Lero, ndifotokoza mwachidule za ubale wapakati pa atatuwa, ndikuyembekeza kukuthandizani!

inchi ndi chiyani"

Inchi (") ndi gawo lomwe limagwiritsidwa ntchito kwambiri ku America, monga mapaipi achitsulo,mavavu, ma flanges, zigongono, mapampu, mateti, etc., monga mafotokozedwe ndi 10″.

Inchi (inchi, kufupikitsidwa monga mkati) amatanthauza chala chachikulu mu Chidatchi, ndipo inchi ndi kutalika kwa chala chachikulu.Zoonadi, kutalika kwa chala chachikulu kumasiyananso.M'zaka za zana la 14, Mfumu Edward II adalengeza "Standard Legal Inchi".Mfundo yake ndi yakuti utali wa njere zitatu zazikulu kwambiri zosankhidwa pakati pa ngala za barele ndi zokonzedwa motsatira mzere ndi inchi imodzi.

Nthawi zambiri 1″=2.54cm=25.4mm

Kodi DN ndi chiyani

DN ndi gawo lodziwika bwino lomwe limagwiritsidwa ntchito kwambiri ku China ndi European system, komanso ndilokhazikika pakuyika mapaipi,mavavu, flanges, zopangira, ndi mapampu, mongaChithunzi cha DN250.

DN imatanthawuza kukula kwake mwadzina kwa chitoliro (chomwe chimadziwikanso kuti m'mimba mwake mwadzina), zindikirani: uku sikuli m'mimba mwake kapena m'mimba mwake wamkati, koma avareji ya m'mimba mwake ndi m'mimba mwake wamkati, wotchedwa m'mimba mwake wapakati.

Ndi chiyaniΦ

Φ ndi wamba unit, amene amatanthauza awiri akunja mapaipi, kapena elbows, kuzungulira zitsulo ndi zipangizo zina.

Ndiye pali kugwirizana kotani pakati pawo?

Choyamba, matanthauzo olembedwa ndi “”” ndi “DN” ali pafupifupi ofanana.Φ ndi kuphatikiza ziwirizi.

Mwachitsanzo

Mwachitsanzo, ngati chitoliro chachitsulo ndi DN600, ngati chitoliro chomwechi chili ndi chizindikiro cha mainchesi, chimakhala 24″.Kodi pali kugwirizana kulikonse pakati pa awiriwa?

Yankho ndi lakuti inde!Inchi wamba ndi chiwerengero ndipo amachulukitsidwa mwachindunji ndi 25 ofanana ndi DN, monga 1″*25=DN25, 2″*25=50, 4″*25=DN100, ndi zina zotero. Inde, pali zosiyana monga 3″ *25=75 Kuzungulira ndi DN80, ndipo pali mainchesi okhala ndi ma semicolons kapena mfundo zoyambira monga 1/2″, 3/4″, 1-1/4″, 1-1/2″, 2-1/2″ , 3-1/2″ ndi zina zotero, izi sizingawerengedwe motero, 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