Rooj yeeb nkab diameters: cov nqi thiab cov yam ntxwv

Suam ntawm cov kav dej tej zaum yuav constituted tsis tau tsuas yog los ntawm hom ntawm cov khoom los ntawm qhov uas lawv ua, tab sis kuj cov loj thiab lub hom phiaj. Lub ntsiab yam ntxwv feature ntawm cov yeeb nkab-product yog nws txoj kab uas hla. Rooj yeeb nkab diameters tso cai qhov ntev ntawm lub raj dej, lub hom phiaj, qauv thiab cov yam ntxwv ntawm cov khoom raug conveyed raws li khoom. Cov tsis yog tswj thiab cov kev tshwj xeeb ntaub ntawv, cov GOST.

Txawv diameters ntawm steel khoom

Rooj yeeb nkab diameters pab xam ntau ntau, raws li cov mis los ntawm kev ntxiv rau lawv mus rau tus nqi los ntawm lub rooj. Lub diameters yog:

• sab hauv;
• sab nraum zoov;
• nominal;
• phab ntsa thickness.

Rooj yeeb nkab diameters muaj lub ntsiab lus nram qab:

1. Lub sab hauv loj ntawm lub steel khoom, uas yog txiav txim nyob rau hauv millimeters, yog hu ua lub zwj ceeb pass. Nws yog siv los kom dock ib tug ob peb kav.
2. Permeability thiab cov khoom tsev ntim nyob rau hauv lub cev kom muaj nuj nqis ntsuas nyob rau hauv millimeters thiab hu ua tuab yeeb nkab phab ntsa. Nws yog xam los nrhiav qhov txawv ntawm qhov txheej thiab puab diameters.
3. Yuav kom txiav txim tus ntoo khaub lig kab siv lub cev kom muaj nuj nqis, hais nyob rau hauv millimeters. Nws yog hu ua nrog txoj kab uas hla. Nws yog pom raws li qhov txawv nruab nrab ntawm tus txheej cheeb thiab phab ntsa thickness, multiplied by 2.
4. Cov txheej inch yuav muaj me me qhov ntev - 5 mus 102 hli, nruab nrab - 103-426 hli thiab loj - 427 hli thiab ntau dua.
5. Nominal txoj kab uas hla twb yuav luag tib lub ntsiab txhais li lub nominal txoj kab uas hla, tab sis nws tus nqi ntau yog.

ntau ntau yam yeeb nkab dov

Rooj ntawm cov yeeb nkab diameters yog ib tug normative daim ntawv thiab yog haum rau ntau hom ntawm cov yeeb nkab-dov ntau lawm. Nyob rau hauv tas li ntawd mus hlau counterparts, muaj ib tug loj ntau yam ntawm cov khoom, siv nyob rau hauv kev tsim kho ntawm yas khoom.

Sab nraud thiab sab hauv - yog ib tug yeeb nkab steel diameters. Rooj nrog lawv qhov tseem ceeb ib txwm pab builders los yog txiav txim qhov tseeb tus nqi rau ib tug zoo tshwm sim nyob rau hauv lawv cov koom thiab welding.