Ibipimo by'icyuma

Imiyoboro y'icyumaBashyizwe mu byiciro byambukiranya ibice mu ruziga, kare, urukiramende, n'imiyoboro idasanzwe; n'ibikoresho mu miyoboro ya karubone yubatswe, imiyoboro mito mito yubatswe, imiyoboro y'ibyuma, hamwe n'umuyoboro uhuriweho; no kubishyira mu miyoboro yo kugeza imiyoboro, ibikoresho byubwubatsi, ibikoresho byubushyuhe, inganda za peteroli, inganda zikora imashini, gucukura geologiya, nibikoresho byumuvuduko mwinshi. Mubikorwa byo kubyaza umusaruro, bigabanijwemo imiyoboro yicyuma idafite icyerekezo hamwe nicyuma gisudira. Imiyoboro y'icyuma idafite icyerekezo irashyirwa mubindi byiciro bishyushye kandi bikonje (bishushanyije), mugihe imiyoboro yo gusudira igabanijwemo imiyoboro igororotse hamwe nu miyoboro isudira.

 

Hariho uburyo bwinshi bwo kwerekana ibipimo byerekana imiyoboro. Hano haribisobanuro kubipimo bisanzwe bikoreshwa: NPS, DN, OD na Gahunda.

(1) NPS (Ingano ya Nominal)

NPS nigipimo cyo muri Amerika ya ruguru kubisanzwe / hasi-yumuvuduko mwinshi hamwe nubushyuhe bwo hejuru. Numubare utagira urugero ukoreshwa mu kwerekana ingano ya pipe. Umubare ukurikira NPS werekana ubunini busanzwe.

NPS ishingiye kuri sisitemu ya mbere ya IPS (Ingano y'icyuma). Sisitemu ya IPS yashizweho kugirango itandukanye ubunini bwa pipe, hamwe nubunini bugaragara muri santimetero zerekana hafi ya diameter y'imbere. Kurugero, umuyoboro wa IPS 6 "werekana diameter y'imbere hafi ya santimetero 6. Abakoresha batangiye kuvuga imiyoboro nka santimetero 2, santimetero 4, cyangwa 6.

 

(2) Nominal Diameter DN (Diameter Nominal)

Nominal Diameter DN: Ubundi buryo bwo kugereranya diameter (bore). Ikoreshwa muri sisitemu yo kuvoma nkinyuguti-nimero ihuza ibiranga, igizwe ninyuguti DN ikurikirwa numubare utagira urugero. Twabibutsa ko DN nominal bore nuburyo bworoshye buzengurutswe kubwintego zifatika, bifitanye isano gusa nuburinganire mubikorwa nyabyo. Umubare ukurikira DN mubusanzwe ufite uburebure bwa milimetero (mm). Mubipimo byubushinwa, diameter ya pipe ikunze kwitwa DNXX, nka DN50.

Imiyoboro ya pipine ikubiyemo diameter yo hanze (OD), diameter y'imbere (ID), na diameter nominal (DN / NPS). Diameter yizina (DN / NPS) ntabwo ihuye na diameter yo hanze cyangwa imbere yimbere ya pipe. Mugihe cyo gukora no kwishyiriraho, diameter yinyuma ihuye nubunini bwurukuta bigomba kugenwa ukurikije ibisobanuro bisanzwe kugirango ubare diameter yimbere.

 

(3) Diameter yo hanze (OD)

Diameter yo hanze (OD): Ikimenyetso cya diameter yo hanze ni Φ, kandi gishobora kwerekanwa nka OD. Kwisi yose, imiyoboro yicyuma ikoreshwa mugutwara amazi ikunze gushyirwa mubice bibiri bya diameter yo hanze: Urukurikirane A (diameter nini yo hanze, imperial) na Series B (diameter ntoya yo hanze, metric).

Imiyoboro myinshi yicyuma cyo hanze ya diameter ibaho kwisi yose, nka ISO (International Organization for Standardization), JIS (Ubuyapani), DIN (Ubudage), na BS (UK).

 

(4) Gahunda Yumubyimba Wumuyoboro

Muri Werurwe 1927, Komite y’ubuziranenge y’Abanyamerika yakoze ubushakashatsi mu nganda kandi itangiza ibyongeweho bito hagati y’ibyiciro bibiri by’ibanze by’urukuta. Sisitemu ikoresha SCH kugirango yerekane ubunini bwizina bwimiyoboro.

 

 EHONG STEEL - ibipimo by'icyuma