Diamita na bawul Φ, diamita DN, inci” Za ku iya bambance waɗannan raka'o'in ƙayyadaddun bayanai?

Sau da yawa akwai abokai waɗanda ba su fahimci alaƙar da ke tsakanin takamaiman "DN", "Φ"da kuma """. A yau, zan taƙaita dangantakar da ke tsakanin ukun a gare ku, da fatan zan taimake ku!

menene inci ɗaya”

Inch (“) wani yanki ne da aka saba amfani da shi a tsarin Amurka, kamar bututun ƙarfe,bawuloli, flanges, gypsum, famfo, tees, da sauransu, kamar yadda ƙayyadaddun bayanai shine 10".

Inci (inci, wanda aka rage a matsayin in.) yana nufin babban yatsa a cikin Yaren mutanen Holland, kuma inci ɗaya shine tsawon babban yatsa. Tabbas, tsawon babban yatsan shima ya bambanta. A ƙarni na 14, Sarki Edward II ya ayyana "Minti na Shari'a na Standard". Sharaɗin shine cewa tsawon manyan hatsi uku da aka zaɓa daga tsakiyar kunun sha'ir kuma aka shirya a jere shine inci ɗaya.

Gabaɗaya 1″=2.54cm=25.4mm

Menene DN?

DN wani yanki ne na ƙayyadaddun bayanai da aka saba amfani da shi a China da tsarin Turai, kuma shine kuma ƙayyadaddun bayanai don yin alama bututun,bawuloli, flanges, kayan aiki, da famfo, kamarDN250.

DN yana nufin diamita mara lamba na bututun (wanda kuma aka sani da diamita mara lamba), lura: wannan ba diamita ta waje ba ce ko diamita ta ciki, amma matsakaicin diamita ta waje da diamita ta ciki, wanda ake kira matsakaicin diamita ta ciki.

MeneneΦ

Φ abu ne da aka saba amfani da shi, wanda ke nufin diamita na waje na bututu, ko gwiwar hannu, ƙarfe mai zagaye da sauran kayan aiki.

To mene ne alaƙar da ke tsakaninsu?

Da farko dai, ma'anonin da aka yiwa alama da """ da "DN" kusan iri ɗaya ne. Suna nufin diamita mara suna, wanda ke nuna girman wannan ƙayyadaddun bayanai, kumaΦ shine haɗin biyun.

misali

Misali, idan bututun ƙarfe DN600 ne, idan bututun ƙarfe iri ɗaya an yi masa alama da inci, zai zama inci 24. Akwai wata alaƙa tsakanin su biyun?

Amsar ita ce eh! Inci na gaba ɗaya lamba ce kuma an ninka ta kai tsaye da 25 daidai da DN, kamar 1″*25=DN25, 2″*25=50, 4″*25=DN100, da sauransu. Tabbas, akwai wasu daban-daban kamar 3″*25=75 Zagaye shine DN80, kuma akwai wasu inci tare da semicolons ko maki na decimal kamar 1/2″, 3/4″, 1-1/4″, 1-1/2″, 2-1/2″, 3-1/2″ da sauransu, ba za a iya ƙididdige waɗannan kamar haka ba, amma lissafin kusan iri ɗaya ne, ainihin ƙimar da aka ƙayyade:

1/2″=DN15

3/4″=DN20

1-1/4″=DN32

1-1/2″=DN40

2″=DN50

2-1/2″=DN65

3″=DN80