Qee cov qauv siv rau kev xam qhov hnyav ntawm cov khoom siv hlau:
Chav Kawm Txog Kev XavQhov hnyav ntawmCov pa roj carbonhlauPipe (kg) = 0.0246615 x phab ntsa tuab x (sab nraud txoj kab uas hla - phab ntsa tuab) x ntev
Qhov hnyav ntawm cov hlau puag ncig (kg) = 0.00617 x txoj kab uas hla x txoj kab uas hla x ntev
Qhov hnyav ntawm cov hlau square (kg) = 0.00785 x qhov dav ntawm sab x qhov dav ntawm sab x qhov ntev
Qhov hnyav ntawm cov hlau hexagonal (kg) = 0.0068 x qhov dav ntawm sab nraud x qhov dav ntawm sab nraud x qhov ntev
Qhov hnyav ntawm cov hlau octagonal (kg) = 0.0065 x qhov dav ntawm sab nraud x qhov dav ntawm sab nraud x qhov ntev
Qhov hnyav ntawm cov hlau rebar (kg) = 0.00617 x txoj kab uas hla uas xam tau x txoj kab uas hla uas xam tau x ntev
Qhov hnyav ntawm lub kaum sab xis (kg) = 0.00785 x (dav ntawm sab + dav ntawm sab - tuab ntawm sab) x tuab ntawm sab x ntev
Qhov hnyav ntawm cov hlau tiaj tiaj (kg) = 0.00785 x tuab x dav ntawm sab x ntev
Qhov hnyav ntawm cov hlau phaj (kg) = 7.85 x tuab x thaj tsam
Qhov hnyav ntawm cov tooj dag puag ncig (kg) = 0.00698 x txoj kab uas hla x txoj kab uas hla x ntev
Qhov hnyav ntawm cov tooj dag puag ncig (kg) = 0.00668 x txoj kab uas hla x txoj kab uas hla x ntev
Qhov hnyav ntawm lub voj voog txhuas (kg) = 0.0022 x txoj kab uas hla x txoj kab uas hla x ntev
Qhov hnyav ntawm cov tooj dag square (kg) = 0.0089 x qhov dav ntawm sab x qhov dav ntawm sab x qhov ntev
Qhov hnyav ntawm cov tooj dag square (kg) = 0.0085 x qhov dav ntawm sab x qhov dav ntawm sab x qhov ntev
Qhov hnyav ntawm lub bar txhuas plaub fab (kg) = 0.0028 x qhov dav ntawm sab x qhov dav ntawm sab x qhov ntev
Qhov hnyav ntawm cov hlau tooj liab xim av hexagonal (kg) = 0.0077 x qhov dav ntawm sab nraud x qhov dav ntawm sab nraud x qhov ntev
Qhov hnyav ntawm cov hlau tooj dag hexagonal (kg) = 0.00736 x qhov dav ntawm sab x qhov dav ntawm sab nraud x qhov ntev
Qhov hnyav ntawm cov hlau txhuas hexagonal (kg) = 0.00242 x qhov dav ntawm sab nraud x qhov dav ntawm sab nraud x qhov ntev
Qhov hnyav ntawm daim hlau tooj liab (kg) = 0.0089 x tuab x dav x ntev
Qhov hnyav ntawm cov phaj tooj dag (kg) = 0.0085 x tuab x dav x ntev
Qhov hnyav ntawm daim hlau txhuas (kg) = 0.00171 x tuab x dav x ntev
Qhov hnyav ntawm lub raj tooj liab puag ncig (kg) = 0.028 x phab ntsa tuab x (txheej sab nraud - phab ntsa tuab) x ntev
Qhov hnyav ntawm lub raj tooj dag puag ncig (kg) = 0.0267 x phab ntsa tuab x (txheej sab nraud - phab ntsa tuab) x ntev
Qhov hnyav ntawm lub raj txhuas puag ncig (kg) = 0.00879 x phab ntsa tuab x (OD - phab ntsa tuab) x ntev
Lus Cim:Lub chav ntsuas ntev hauv cov mis yog 'meter', lub chav ntsuas cheeb tsam yog 'meter' square, thiab lwm cov chav ntsuas yog millimeters. Qhov hnyav saum toj no x tus nqi ntawm cov khoom siv yog tus nqi khoom siv, ntxiv rau kev kho saum npoo + tus nqi ua haujlwm ib teev ntawm txhua txoj kev + cov ntaub ntawv ntim khoom + tus nqi xa khoom + se + tus nqi paj laum = tus nqi hais (FOB).
Lub zog tshwj xeeb ntawm cov ntaub ntawv siv feem ntau
Hlau = 7.85 Txhuas = 2.7 Tooj = 8.95 Hlau tsis xeb = 7.93
Cov mis xam yooj yim ntawm stainless hlau qhov hnyav
Stainless hlau tiaj tus hnyav ib square meter (kg) mis: 7.93 x tuab (hli) x dav (hli) x ntev (m)
304, 321Cov Hlau Stainless PipeChav Kawm Txog Kev Xavqhov hnyav ib 'meter' (kg) cov mis: 0.02491 x phab ntsa tuab (hli) x (sab nraud txoj kab uas hla - phab ntsa tuab) (hli)
316L, 310SCov Hlau Stainless PipeChav Kawm Txog Kev Xavqhov hnyav ib 'meter' (kg) cov mis: 0.02495 x phab ntsa tuab (hli) x (txheej sab nraud - phab ntsa tuab) (hli)
Cov hlau tsis xeb puag ncig hnyav ib 'meter' (kg) mis: txoj kab uas hla (hli) x txoj kab uas hla (hli) x (nickel stainless: 0.00623; chromium stainless: 0.00609)
Kev suav qhov hnyav theoretical ntawm cov hlau
Kev suav qhov hnyav ntawm cov hlau yog ntsuas hauv kilograms (kg). Nws cov mis yooj yim yog:
W (qhov hnyav, kg) = F (cheeb tsam hla mm²) x L (ntev m) x ρ (qhov ceev g/cm³) x 1/1000
Cov qauv theoretical hnyav ntawm ntau yam hlau yog raws li nram no:
Hlau puag ncig,Coil (kg/m2)
W = 0.006165 xd xd
d = txoj kab uas hla hli
Txoj kab uas hla 100 hli hlau puag ncig, nrhiav qhov hnyav ib m. Qhov hnyav ib m = 0.006165 x 100² = 61.65kg
Cov hlau txuas (kg/m2)
W = 0.00617 xd xd
d = txoj kab uas hla ntawm seem mm
Nrhiav qhov hnyav ib m ntawm cov hlau rebar nrog lub cheeb ntawm seem ntawm 12 hli. Qhov hnyav ib m = 0.00617 x 12² = 0.89kg
Hlau plaub fab (kg/m2)
W=0.00785 xa xa
a = qhov dav ntawm sab mm
Nrhiav qhov hnyav ib m ntawm cov hlau plaub fab uas muaj sab dav 20 hli. Qhov hnyav ib m = 0.00785 x 20² = 3.14 kg
Hlau tiaj tus (kg/m2)
W=0.00785 × b × d
b = qhov dav ntawm sab mm
d = tuab hli
Rau cov hlau tiaj tiaj uas muaj sab dav 40 hli thiab tuab 5 hli, nrhiav qhov hnyav ib 'meter'. Qhov hnyav ib 'meter' = 0.00785 × 40 × 5 = 1.57 kg
Hlau hexagonal (kg/m)
W=0.006798 × s × s
s = qhov deb ntawm sab nraud mm
Nrhiav qhov hnyav ib m ntawm cov hlau hexagonal uas muaj qhov deb ntawm 50 hli ntawm sab tod. Qhov hnyav ib m = 0.006798 × 502 = 17kg
Hlau kaum sab xis (kg/m)
W=0.0065 × s × s
s = qhov deb mus rau sab mm
Nrhiav qhov hnyav ib m ntawm ib lub hlau octagonal nrog qhov deb ntawm 80 hli ntawm sab tod. Qhov hnyav ib m = 0.0065 × 802 = 41.62kg
Lub kaum sab xis sib npaug (kg / m)
W = 0.00785 × [d (2b-d) + 0.215 (R²-2r²)]
b = qhov dav ntawm sab
d = tuab ntawm ntug
R = lub vojvoog sab hauv ntawm lub arc
r = lub vojvoog ntawm qhov kawg ntawm arc
Nrhiav qhov hnyav ib m ntawm 20 mm x 4 mm lub kaum sab xis sib npaug. Los ntawm Metallurgical Catalog, R ntawm 4mm x 20mm lub kaum sab xis sib npaug yog 3.5 thiab r yog 1.2, ces qhov hnyav ib m = 0.00785 x [4 x (2 x 20-4) + 0.215 x (3.52 - 2 x 1.2²)] = 1.15kg
Lub kaum sab xis tsis sib npaug (kg/m)
W = 0.00785 × [d(B+bd) +0.215(R²-2r²)]
B = qhov dav ntawm sab ntev
b = qhov dav ntawm sab luv
d = Sab tuab
R = lub vojvoog sab hauv
r = qhov kawg ntawm lub vojvoog arc
Nrhiav qhov hnyav ib m ntawm 30 mm × 20 mm × 4 mm lub kaum sab xis tsis sib npaug. Los ntawm cov ntawv teev khoom siv hlau kom nrhiav tau 30 × 20 × 4 lub kaum sab xis tsis sib npaug ntawm R yog 3.5, r yog 1.2, ces qhov hnyav ib m = 0.00785 × [4 × (30 + 20 - 4) + 0.215 × (3.52 - 2 × 1.2 2)] = 1.46kg
Cov hlau channel (kg/m2)
W = 0.00785 × [hd + 2t (bd) + 0.349 (R²-r²)]
h = qhov siab
b = ntev ceg
d = tuab ntawm lub duav
t = qhov nruab nrab ntawm ceg tuab
R = lub vojvoog sab hauv
r = lub vojvoog ntawm qhov kawg ntawm arc
Nrhiav qhov hnyav ib m ntawm cov hlau channel uas loj 80 mm × 43 mm × 5 mm. Los ntawm daim ntawv teev cov hlau, cov channel muaj 8, R yog 8 thiab r yog 4. Qhov hnyav ib m = 0.00785 × [80 × 5 + 2 × 8 × (43 - 5) + 0.349 × (82 - 4²)] = 8.04kg
I-beam (kg/m2)
W=0.00785 × [hd+2t(bd)+0.615(R²-r²)
h = qhov siab
b = ntev ceg
d = tuab ntawm lub duav
t = qhov nruab nrab ntawm ceg tuab
r = lub vojvoog sab hauv ntawm lub arc
r = qhov kawg ntawm lub vojvoog arc
Nrhiav qhov hnyav ib m ntawm I-beam ntawm 250 mm × 118 mm × 10 mm. Los ntawm phau ntawv qhia txog cov khoom siv hlau, I-beam muaj 13, R ntawm 10 thiab r ntawm 5. Qhov hnyav ib m = 0.00785 x [250 x 10 + 2 x 13 x (118 - 10) + 0.615 x (10² - 5²)] = 42.03kg
Phaj hlau (kg/m²)
W = 7.85 × d
d = tuab
Nrhiav qhov hnyav ib m² ntawm ib lub phaj hlau uas tuab 4 hli. Qhov hnyav ib m² = 7.85 x 4 = 31.4kg
Cov yeeb nkab hlau (xws li cov yeeb nkab hlau tsis muaj seamless thiab welded) (kg/m)
W = 0.0246615×S (DS)
D = sab nraud txoj kab uas hla
S = phab ntsa tuab
Nrhiav qhov hnyav ib m ntawm cov yeeb nkab hlau tsis muaj qhov sib txuas nrog lub cheeb sab nraud ntawm 60 hli thiab phab ntsa tuab ntawm 4 hli. Qhov hnyav ib m = 0.0246615 × 4 × (60-4) = 5.52kg
Lub sijhawm tshaj tawm: Lub Kaum Hli-08-2023