Emisebenzini yesimanje yokukhiqiza izimboni, isakhiwo sensimbi siyingxenye ebalulekile eyisisekelo, futhi uhlobo nesisindo sepayipi yensimbi ekhethiwe kuzothinta ngqo ikhwalithi nokuphepha kwesakhiwo. Lapho kubalwa isisindo samapayipi ensimbi, amapayipi ensimbi e-carbon ngokuvamile asetshenziswa. Ngakho, kanjani ukubala isisindo carbon steel pipe & tubing?

1. Ipayipi lensimbi ye-Carbon & nefomula yokubala isisindo seshubhu:
kg/m = (Od – Wt) * Wt * 0.02466

Ifomula: (ububanzi bangaphandle - ukujiya kodonga) × ukujiya kodonga mm × 0.02466 × ubude m

Isibonelo: ipayipi lensimbi ye-carbon & ishubhu ububanzi bangaphandle 114mm, ukujiya kodonga 4mm, ubude 6m
Isibalo: (114-4)×4×0.02466×6=65.102kg

Ngenxa yokuchezuka okuvumelekile kwensimbi enqubweni yokukhiqiza, isisindo sethiyori esibalwe ngefomula sihluke kancane kunesisindo sangempela, ngakho sisetshenziswa kuphela njengereferensi yokulinganisa. Lokhu kuhlobene ngokuqondile nobukhulu bobude, indawo ye-cross-sectional kanye nokubekezelela usayizi wensimbi.
2. Isisindo sangempela sensimbi sibhekisela esisindweni esitholakala ngesisindo sangempela (isisindo) sensimbi, esibizwa ngokuthi isisindo sangempela.
Isisindo sangempela sinembe kakhulu kunesisindo sethiyori.

3. Indlela yokubala yesisindo sensimbi

(1) Isisindo se-gross: Iwukulinganisa "yesisindo esiphelele", okuyisisindo esiphelele sensimbi ngokwayo nezinto zokupakisha.
Inkampani yezokuthutha ibala impahla ngokwesisindo esiphelele. Nokho, ukuthengwa nokudayiswa kwensimbi kubalwa ngesisindo esinetha.
(2) Isisindo seNet: Kuwukulinganisa "gross weight".
Isisindo ngemva kokukhipha isisindo sempahla yokupakisha esisindweni esiphelele sensimbi, okungukuthi, isisindo sangempela, sibizwa ngokuthi isisindo senetha.
Ekuthengeni nasekuthengisweni kwemikhiqizo yensimbi, ngokuvamile kubalwa ngesisindo esinetha.
(3) Isisindo se-Tare: isisindo sensimbi yokupakisha, ebizwa nge-tare weight.
(4) I-Weight ton: iyunithi yesisindo esetshenziswa lapho kubalwa izindleko zezimpahla ezisuselwe esisindweni sensimbi.
Iyunithi yokulinganisa esemthethweni yithani (1000kg), futhi kukhona amathani amade (1016.16kg ohlelweni lwaseBrithani) namathani amafushane (907.18kg ohlelweni lwase-US).
(5) Isisindo sokukhokha: eyaziwa nangokuthi “ithani lokukhokha” noma “ithani lempahla”.

4. Isisindo sensimbi lapho umnyango wezokuthutha ukhokhisa khona impahla.

Izindlela zokuthutha ezihlukene zinezilinganiso nezindlela zokubala ezihlukene.
Okufana nezinto zokuhamba zesitimela, ngokuvamile zisebenzisa umthwalo omakiwe weloli njengesisindo sokukhokha.
Ezokuthutha emgwaqeni, umthwalo ukhokhiswa ngokusekelwe kumthamo wemoto.

Ngomthwalo ongaphansi kweloli wezitimela nemigwaqo emikhulu, isisindo esincane esikhokhiswayo sisekelwe esisindweni se-gross samakhilogremu ambalwa, futhi siyahlanganiswa uma singanele.