SCH ni iki (Umubare w'ingengabihe)?

SCH bisobanura “Ingengabihe,” ni sisitemu yo gutondekanya ikoreshwa muri sisitemu yo muri Amerika isanzwe yerekana imiyoboro. Ikoreshwa ifatanije na diametre nominal (NPS) kugirango itange uburebure bwurukuta rusanzwe rwimiyoboro yubunini butandukanye, koroshya igishushanyo, gukora, no guhitamo.

 

SCH ntabwo yerekana neza uburebure bwurukuta ahubwo ni sisitemu yo gutondekanya ibyerekeranye nubunini bwurukuta rwihariye binyuze mumeza asanzwe (urugero, ASME B36.10M, B36.19M).

 

Mubyiciro byambere byiterambere risanzwe, hashyizweho formulaire yo gusobanura isano iri hagati ya SCH, igitutu, nimbaraga zumubiri:
SCH ≈ 1000 × P / S.
Aho:
P - Igishushanyo mbonera (psi)
S - Emera guhangayikishwa nibikoresho (psi)

 

Nubwo iyi formulaire yerekana isano iri hagati yuburebure bwurukuta nuburyo bukoreshwa, muguhitamo nyabyo, indangagaciro zijyanye nurukuta zigomba gukomeza kwerekanwa kuva kumeza isanzwe.

 

Inkomoko nuburinganire bujyanye na SCH (Umubare wurutonde)

Sisitemu ya SCH yashinzwe bwa mbere n'ikigo cy'igihugu gishinzwe ubuziranenge muri Amerika (ANSI) nyuma iza kwemezwa na Sosiyete y'Abanyamerika y'Abashinzwe Imashini (ASME), yinjizwa mu cyiciro cya B36, kugira ngo yerekane isano iri hagati y'urukuta rw'imiyoboro ya diameter na diameter.

 

Kugeza ubu, ibipimo bisanzwe bikoreshwa birimo:

ASME B36.10M:
Bikoreshwa mubyuma bya karubone hamwe nibyuma bivanga ibyuma, bitwikiriye SCH 10, 20, 40, 80, 160, nibindi.;

ASME B36.19M:
Bikoreshwa kumiyoboro idafite ibyuma, harimo urukurikirane rworoshye nka SCH 5S, 10S, 40S, nibindi.

 

Itangizwa ryimibare ya SCH ryakemuye ikibazo cyuburinganire bwurukuta rudahuza ibipimo bitandukanye byizina, bityo bigashyirwaho igishushanyo mbonera.

 

Nigute SCH (numero yingengabihe) ihagarariwe?

Mubipimo byabanyamerika, imiyoboro isanzwe yerekanwa hakoreshejwe imiterere "NPS + SCH," nka NPS 2 "SCH 40, byerekana umuyoboro ufite diameter nominal ya santimetero 2 n'ubugari bwurukuta bihuye na SCH 40.

NPS. Kurugero, diameter nyayo yo hanze ya NPS 2 "ni milimetero 60.3.

SCH: Urwego rwubunini bwurukuta, aho umubare munini werekana urukuta runini, bikavamo imbaraga nyinshi zumuyoboro hamwe no guhangana nigitutu.

Ukoresheje NPS 2 "nkurugero, uburebure bwurukuta kumibare itandukanye ya SCH nuburyo bukurikira (ibice: mm):

SCH 10: 2,77 mm
SCH 40: 3,91 mm
SCH 80: 5.54 mm

 
Note Icyitonderwa cyingenzi】
- SCH ni izina gusa, ntabwo ari igipimo kiziguye cy'uburebure bw'urukuta;
- Imiyoboro ifite izina rimwe rya SCH ariko ubunini bwa NPS butandukanye bufite uburebure bwurukuta;
- Urwego rwo hejuru rwa SCH, niko urukuta rwumuyoboro rurerure kandi niko urwego rushobora gukoreshwa.