ʻO kekahi mau ʻano maʻamau no ka helu ʻana i ke kaumaha o nā mea metala:
ʻĀpana ManaʻoKaumaha oKalaponakilaPipe (kg) = 0.0246615 x mānoanoa o ka pā x (ke anawaena o waho - ka mānoanoa o ka pā) x ka lōʻihi
Kaumaha kila poepoe (kg) = 0.00617 x ke anawaena x ke anawaena x ka lōʻihi
Kaumaha kila huinaha (kg) = 0.00785 x laulā ʻaoʻao x laulā ʻaoʻao x lōʻihi
Kaumaha kila hexagonal (kg) = 0.0068 x laulā ʻaoʻao ʻē aʻe x laulā ʻaoʻao ʻē aʻe x lōʻihi
Kaumaha kila ʻewalu (kg) = 0.0065 x laulā ʻaoʻao ʻē aʻe x laulā ʻaoʻao ʻē aʻe x lōʻihi
Kaumaha o ke kaula hao (kg) = 0.00617 x ke anawaena i helu ʻia x ke anawaena i helu ʻia x ka lōʻihi
Kaumaha kihi (kg) = 0.00785 x (ʻaoʻao laulā + ʻaoʻao laulā - ʻaoʻao mānoanoa) x ʻaoʻao mānoanoa x lōʻihi
Kaumaha kila palahalaha (kg) = 0.00785 x mānoanoa x laulā ʻaoʻao x lōʻihi
Kaumaha o ka papa kila (kg) = 7.85 x mānoanoa x ʻāpana
Kaumaha o ke keleawe poepoe (kg) = 0.00698 x ke anawaena x ke anawaena x ka lōʻihi
Kaumaha o ke keleawe poepoe (kg) = 0.00668 x ke anawaena x ke anawaena x ka lōʻihi
Kaumaha o ke koʻokoʻo alumini poepoe (kg) = 0.0022 x ke anawaena x ke anawaena x ka lōʻihi
Kaumaha keleawe huinaha (kg) = 0.0089 x laulā ʻaoʻao x laulā ʻaoʻao x lōʻihi
Kaumaha keleawe huinaha (kg) = 0.0085 x laulā ʻaoʻao x laulā ʻaoʻao x lōʻihi
Kaumaha o ka pā alumini huinaha (kg) = 0.0028 x laulā ʻaoʻao x laulā ʻaoʻao x lōʻihi
Kaumaha o ke koʻokoʻo keleawe poni hexagonal (kg) = 0.0077 x laulā o ka ʻaoʻao ʻē aʻe x laulā o ka ʻaoʻao ʻē aʻe x lōʻihi
Kaumaha keleawe hexagonal (kg) = 0.00736 x laulā ʻaoʻao x laulā ʻaoʻao kū'ē x lōʻihi
Kaumaha o ke koʻokoʻo alumini hexagonal (kg) = 0.00242 x ka laulā o ka ʻaoʻao ʻē aʻe x ka laulā o ka ʻaoʻao ʻē aʻe x ka lōʻihi
Kaumaha o ke keleawe (kg) = 0.0089 x mānoanoa x laulā x lōʻihi
Kaumaha o ka papa keleawe (kg) = 0.0085 x mānoanoa x laulā x lōʻihi
Kaumaha o ka papa alumini (kg) = 0.00171 x mānoanoa x laulā x lōʻihi
Kaumaha o ka paipu keleawe poni poepoe (kg) = 0.028 x mānoanoa o ka paia x (ke anawaena waho - ka mānoanoa o ka paia) x ka lōʻihi
Kaumaha paipu keleawe poepoe (kg) = 0.0267 x mānoanoa o ka paia x (ke anawaena waho - ka mānoanoa o ka paia) x ka lōʻihi
Kaumaha o ka paipu alumini poepoe (kg) = 0.00879 x mānoanoa o ka paia x (OD - mānoanoa o ka paia) x lōʻihi
Hoʻomaopopo:ʻO ke anakahi o ka lōʻihi ma ke ʻano he mika, ʻo ke anakahi o ka ʻāpana he mika huinaha, a ʻo ke koena o nā anakahi he millimeters. ʻO ke kaumaha ma luna x ke kumukūʻai anakahi o ka mea hana ke kumukūʻai o ka mea hana, me ka mālama ʻili + ke kumukūʻai hola kanaka o kēlā me kēia hana + nā mea hoʻopili + uku hoʻouna + ʻauhau + uku paneʻe = ʻōlelo kūʻai (FOB).
ʻO ke kaumaha kikoʻī o nā mea i hoʻohana pinepine ʻia
Hao = 7.85 Alumini = 2.7 Keleawe = 8.95 Kila kila = 7.93
ʻO ke ʻano helu maʻalahi o ke kaumaha kila kila
ʻO ke kaumaha pālahalaha kila kila no ka mika kūlike (kg): 7.93 x mānoanoa (mm) x laulā (mm) x lōʻihi (m)
304, 321Ke kila kila PʻīpeʻĀpana Manaʻoke kaumaha no ka mika (kg) haʻilula: 0.02491 x mānoanoa o ka paia (mm) x (ke anawaena o waho - ka mānoanoa o ka paia) (mm)
316L, 310SKe kila kila PʻīpeʻĀpana Manaʻoke kaumaha no ka mika (kg) haʻilula: 0.02495 x mānoanoa o ka paia (mm) x (ke anawaena waho - ka mānoanoa o ka paia) (mm)
ʻO ke kaumaha o ke kila poepoe kila kila no kēlā me kēia mika (kg) haʻilula: anawaena (mm) x anawaena (mm) x (nickel stainless: 0.00623; chromium stainless: 0.00609)
Ka helu ʻana o ke kaumaha kumumanaʻo o ke kila
Ua ana ʻia ke kaumaha kumumanaʻo o ke kila ma nā kilokani (kg). ʻO kona ʻano kumu:
W (kaumaha, kg) = F (ʻāpana ʻāpana mm²) x L (lōʻihi m) x ρ (ka nui g/cm³) x 1/1000
Penei ke ʻano o ke kaumaha kumumanaʻo kila:
kila poepoe,ʻŌwili (kg/m)
W=0.006165 xd xd
d = ke anawaena mm
Ke anawaena he 100mm ke kila poepoe, e ʻimi i ke kaumaha no ka mika. Kaumaha no ka mika = 0.006165 x 100² = 61.65kg
Paʻa (kg/m)
W=0.00617 xd xd
d = ke anawaena ʻāpana mm
E huli i ke kaumaha no ka mika o kahi rebar me ke anawaena ʻāpana o 12mm. Kaumaha no ka mika = 0.00617 x 12² = 0.89kg
Ke kila huinaha (kg/m)
W=0.00785 xa xa
a = ka laulā ʻaoʻao mm
E huli i ke kaumaha no ka mika o ke kila huinaha me ka laulā ʻaoʻao o 20mm. Kaumaha no ka mika = 0.00785 x 20² = 3.14kg
Ke kila pālahalaha (kg/m)
W=0.00785×b×d
b = ka laulā ʻaoʻao mm
d = mānoanoa mm
No ke kila pālahalaha me ka laulā ʻaoʻao o 40mm a me ka mānoanoa o 5mm, e ʻimi i ke kaumaha no ka mika. Kaumaha no ka m = 0.00785 × 40 × 5 = 1.57kg
Ke kila hexagonal (kg/m)
W=0.006798×s×s
s=mamao mai ka ʻaoʻao ʻē aʻe mm
E huli i ke kaumaha no ka mika o ke kila hexagonal me ka mamao o 50mm mai ka ʻaoʻao ʻē aʻe. Kaumaha no ka mika = 0.006798 × 502 = 17kg
Ke kila ʻewalu (kg/m)
W=0.0065×s×s
s=mamao i ka ʻaoʻao mm
E huli i ke kaumaha no ka mika o ke kila ʻewalu me ka mamao o 80mm mai ka ʻaoʻao ʻē aʻe. Kaumaha no ka mika = 0.0065 × 802 = 41.62kg
Ke kila kihi like (kg/m)
W = 0.00785 × [d (2b-d) + 0.215 (R²-2r²)]
b = ka laulā o ka ʻaoʻao
d = ka mānoanoa o ka lihi
R = ka radius o ke aʻo kūloko
r = radius o ke arc hopena
E huli i ke kaumaha no kēlā me kēia mika o ke kihi equilateral 20 mm x 4 mm. Mai ka Metallurgical Catalog, ʻo ka R o kahi kihi lihi like 4mm x 20mm he 3.5 a ʻo ka r he 1.2, a laila ʻo ke kaumaha no kēlā me kēia mika = 0.00785 x [4 x (2 x 20-4) + 0.215 x (3.52 - 2 x 1.2² )] = 1.15kg
Ke kihi like ʻole (kg/m)
W=0.00785×[d(B+bd) +0.215(R²-2r²)]
B = ka laulā o ka ʻaoʻao lōʻihi
b = ka laulā ʻaoʻao pōkole
d = Mānoanoa ʻaoʻao
R=ka radius o ke arc o loko
r=ka radius o ke aʻo hopena
E huli i ke kaumaha no kēlā me kēia mika o 30 mm × 20 mm × 4 mm kihi like ʻole. Mai ka papa inoa metallurgical e ʻike i nā kihi like ʻole 30 × 20 × 4 o R he 3.5, ʻo r he 1.2, a laila ke kaumaha no kēlā me kēia mika = 0.00785 × [4 × (30 + 20 - 4) + 0.215 × (3.52 - 2 × 1.2 2)] = 1.46kg
Ke kila kahawai (kg/m)
W = 0.00785 × [hd + 2t (bd) + 0.349 (R²-r² )]
h=kiʻekiʻe
b=ka lōʻihi o ka wāwae
d = mānoanoa o ka pūhaka
t=mānoanoa wāwae awelika
R=ka radius o ke arc o loko
r = radius o ke arc hopena
E huli i ke kaumaha no kēlā me kēia mika o ke kila kahawai he 80 mm × 43 mm × 5 mm. Mai kahi papa inoa metallurgical, aia i ke kahawai he 8, he 8 R a he 4 r. Kaumaha no kēlā me kēia mika = 0.00785 × [80 × 5 + 2 × 8 × (43 - 5) + 0.349 × (82 - 4²)] = 8.04kg
ʻUmi-I (kg/m)
W=0.00785×[hd+2t(bd)+0.615(R²-r²)
h=kiʻekiʻe
b=ka lōʻihi o ka wāwae
d = mānoanoa o ka pūhaka
t=mānoanoa wāwae awelika
r=ka radius o ke aʻo kūloko
r=ka radius o ke aʻo hopena
E huli i ke kaumaha no kēlā me kēia mika o kahi I-beam o 250 mm × 118 mm × 10 mm. Mai ka puke lima o nā mea hao, ʻo ka I-beam he 13, he R o 10 a he r o 5. Kaumaha no kēlā me kēia mika = 0.00785 x [250 x 10 + 2 x 13 x (118 - 10) + 0.615 x (10² - 5² )] = 42.03kg
Papa kila (kg/m²)
W=7.85×d
d = mānoanoa
E huli i ke kaumaha no ka m² o kahi papa kila me ka mānoanoa o 4mm. Kaumaha no ka m² = 7.85 x 4 = 31.4kg
Paipu kila (me nā paipu kila humuhumu ʻole a me nā paipu kila i hoʻopaʻa ʻia) (kg/m)
W=0.0246615×S (DS)
D = ke anawaena o waho
S = ka mānoanoa o ka paia
E huli i ke kaumaha no ka mika o kahi paipu kila humuhumu me ke anawaena waho o 60mm a me ka mānoanoa o ka paia o 4mm. Kaumaha no ka mika = 0.0246615 × 4 × (60-4) = 5.52kg
Ka manawa hoʻouna: ʻOkakopa-08-2023