Mekhoa e meng e tloaelehileng ea ho bala boima ba thepa ea tšepe:
Yuniti ea Khopolo-tabaBoima baKhabonetšepePipe (kg) = 0.0246615 x botenya ba lebota x (bophara ba kantle - botenya ba lebota) x bolelele
Boima ba tšepe e chitja (kg) = 0.00617 x bophara x bophara x bolelele
Boima ba tšepe e sekwere (kg) = 0.00785 x bophara ba lehlakore x bophara ba lehlakore x bolelele
Boima ba tšepe ea hexagonal (kg) = 0.0068 x bophara ba lehlakore le fapaneng x bophara ba lehlakore le fapaneng x bolelele
Boima ba tšepe e nang le octagonal (kg) = 0.0065 x bophara ba lehlakore le fapaneng x bophara ba lehlakore le fapaneng x bolelele
Boima ba rebar (kg) = 0.00617 x bophara bo baliloeng x bophara bo baliloeng x bolelele
Boima ba angle (kg) = 0.00785 x (bophara ba lehlakore + bophara ba lehlakore - botenya ba lehlakore) x botenya ba lehlakore x bolelele
Boima ba tšepe e bataletseng (kg) = 0.00785 x botenya x bophara ba lehlakore x bolelele
Boima ba poleiti ea tšepe (kg) = 7.85 x botenya x sebaka
Boima ba lebanta la koporo le chitja (kg) = 0.00698 x bophara x bophara x bolelele
Boima ba lebanta la koporo le chitja (kg) = 0.00668 x bophara x bophara x bolelele
Boima ba terata ea aluminium e chitja (kg) = 0.0022 x bophara x bophara x bolelele
Boima ba lebanta la koporo le sekwere (kg) = 0.0089 x bophara ba lehlakore x bophara ba lehlakore x bolelele
Boima ba lebanta la koporo le sekwere (kg) = 0.0085 x bophara ba lehlakore x bophara ba lehlakore x bolelele
Boima ba aluminium bareng e sekwere (kg) = 0.0028 x bophara ba lehlakore x bophara ba lehlakore x bolelele
Boima ba koporo e pherese e nang le mahlakore a tšeletseng (kg) = 0.0077 x bophara ba lehlakore le fapaneng x bophara ba lehlakore le fapaneng x bolelele
Boima ba lebanta la koporo la hexagonal (kg) = 0.00736 x bophara ba lehlakore x bophara ba lehlakore le fapaneng x bolelele
Boima ba lebanta la aluminium la hexagonal (kg) = 0.00242 x bophara ba lehlakore le fapaneng x bophara ba lehlakore le fapaneng x bolelele
Boima ba poleiti ea koporo (kg) = 0.0089 x botenya x bophara x bolelele
Boima ba poleiti ea koporo (kg) = 0.0085 x botenya x bophara x bolelele
Boima ba poleiti ea aluminium (kg) = 0.00171 x botenya x bophara x bolelele
Boima ba tube ea koporo e chitja e pherese (kg) = 0.028 x botenya ba lebota x (bophara ba kantle - botenya ba lebota) x bolelele
Boima ba tube ea koporo e chitja (kg) = 0.0267 x botenya ba lebota x (bophara ba kantle - botenya ba lebota) x bolelele
Boima ba tube ea aluminium e chitja (kg) = 0.00879 x botenya ba lebota x (OD - botenya ba lebota) x bolelele
Hlokomela:Yuniti ya bolelele foromong ke mithara, yuniti ya sebaka ke mithara ya sekwere, mme diyuniti tse ding kaofela ke dimilimithara. Boima bo ka hodimo x theko ya yuniti ya thepa ke ditjeo tsa thepa, hammoho le kalafo ya bokahodimo + ditjeo tsa hora ya motho tsa tshebetso ka nngwe + thepa ya ho paka + tefiso ya ho romela + lekgetho + sekgahla sa tswala = khotheishene (FOB).
Boima bo itseng ba thepa e sebelisoang hangata
Tšepe = 7.85 Aluminium = 2.7 Koporo = 8.95 Tšepe e sa ruseng = 7.93
Tšepe e sa hloekang boima mokhoa o bonolo oa ho bala
Tšepe e sa ruseng e bataletseng boima ka mithara e sekwere (kg) mokhoa: 7.93 x botenya (mm) x bophara (mm) x bolelele (m)
304, 321Tšepe e sa Khaotseng PipeYuniti ea Khopolo-tababoima ka mithara (kg) foromo: 0.02491 x botenya ba lebota (mm) x (bophara ba kantle - botenya ba lebota) (mm)
316L, 310STšepe e sa Khaotseng PipeYuniti ea Khopolo-tababoima ka mithara (kg) foromo: 0.02495 x botenya ba lebota (mm) x (bophara ba kantle - botenya ba lebota) (mm)
Boima ba tšepe e chitja e sa ruseng ka mithara (kg) foromo: bophara (mm) x bophara (mm) x (nikeli e sa ruseng: 0.00623; chromium e sa ruseng: 0.00609)
Tekanyo ea boima ba tšepe
Palo ea boima ba tšepe ea khopolo-taba e lekanngoa ka lik'hilograma (kg). Foromo ea eona ea motheo ke:
W (boima, kg) = F (sebaka sa karolo e tsheletseng mm²) x L (bolelele m) x ρ (botenya g/cm³) x 1/1000
Foromo e fapaneng ea boima ba khopolo-taba ea tšepe ke e latelang:
Tšepe e chitja,Khoele (kg/m)
W=0.006165 xd xd
d = bophara mm
Bophara ba tšepe e chitja ea 100mm, fumana boima ka m. Boima ka m = 0.006165 x 100² = 61.65kg
Rebar (kg/m)
W=0.00617 xd xd
d = bophara ba karolo mm
Fumana boima ka m ea rebar e nang le bophara ba karolo ea 12mm. Boima ka m = 0.00617 x 12² = 0.89kg
Tšepe e sekoere (kg/m)
W=0.00785 xa xa
a = bophara ba lehlakore mm
Fumana boima ka m ya tshepe e sekwere e nang le bophara ba lehlakore ba 20mm. Boima ka m = 0.00785 x 20² = 3.14kg
Tšepe e bataletseng (kg/m)
W=0.00785×b×d
b = bophara ba lehlakore mm
d=botenya mm
Bakeng sa tšepe e bataletseng e bophara ba lehlakore ba 40mm le botenya ba 5mm, fumana boima ka mithara. Boima ka m = 0.00785 × 40 × 5 = 1.57kg
Tšepe e nang le mahlakore a tšeletseng (kg/m)
W=0.006798×s×s
s=sebaka ho tloha lehlakoreng le fapaneng mm
Fumana boima ka m ea tšepe e nang le mahlakore a tšeletseng e nang le sebaka sa 50mm ho tloha lehlakoreng le leng. Boima ka m = 0.006798 × 502 = 17kg
Tšepe e nang le octagonal (kg/m)
W=0.0065×s×s
s=sebaka ho ea lehlakoreng mm
Fumana boima ka m ea tšepe e nang le mahlakore a mane e nang le sebaka sa 80mm ho tloha lehlakoreng le leng. Boima ka m = 0.0065 × 802 = 41.62kg
Tšepe ea angle e lekanang (kg/m)
W = 0.00785 × [d (2b-d ) + 0.215 (R²-2r² )]
b = bophara ba lehlakore
d = botenya ba lehlakore
R = radius ea arc e ka hare
r = radius ea arc ea qetello
Fumana boima ka m ea sekhutlo sa 20 mm x 4 mm se lekanang. Ho tsoa ho Metallurgical Catalog, R ea sekhutlo sa 4mm x 20mm se lekanang ke 3.5 'me r ke 1.2, ebe boima ka m = 0.00785 x [4 x (2 x 20-4) + 0.215 x (3.52 - 2 x 1.2² )] = 1.15kg
Sekhutlo se sa lekanang (kg/m)
W=0.00785×[d(B+bd ) +0.215(R²-2r²)]
B = bophara ba lehlakore le lelelele
b=bophara bo bokhutšoanyane ba lehlakore
d=Botenya ba lehlakore
R = radius ea arc ea kahare
r=radius ea arc ea qetello
Fumana boima ka m ea 30 mm × 20 mm × 4 mm angle e sa lekanang. Ho tloha lethathamong la metallurgical ho fumana 30 × 20 × 4 angle tse sa lekanang tsa R ke 3.5, r ke 1.2, ebe boima ka m = 0.00785 × [4 × (30 + 20 - 4) + 0.215 × (3.52 - 2 × 1.2 2 )] = 1.46kg
Tšepe ea kanale (kg/m2)
W = 0.00785 × [hd + 2t (bd) + 0.349 (R²-r² )]
h=bophahamo
b=bolelele ba leoto
d=botenya ba letheka
t = botenya ba leoto bo tloaelehileng
R = radius ea arc ea kahare
r = radius ea arc ea qetello
Fumana boima ka m ea tšepe ea kanale ea 80 mm × 43 mm × 5 mm. Ho tsoa lethathamong la metallurgical, kanale e na le 8, R ea 8 le r ea 4. Boima ka m = 0.00785 × [80 × 5 + 2 × 8 × (43 - 5) + 0.349 × (82 - 4²)] = 8.04kg
I-boriti (kg/m)
W=0.00785×[hd+2t(bd)+0.615(R²-r²)
h=bophahamo
b=bolelele ba leoto
d=botenya ba letheka
t = botenya ba leoto bo tloaelehileng
r=radius ea arc e ka hare
r=radius ea arc ea qetello
Fumana boima ka m ea I-beam ea 250 mm × 118 mm × 10 mm. Ho tsoa bukeng ea lisebelisoa tsa tšepe, I-beam e na le 13, R ea 10 le r ea 5. Boima ka m = 0.00785 x [250 x 10 + 2 x 13 x (118 - 10) + 0.615 x (10² - 5²)] = 42.03kg
Poleiti ea tšepe (kg/m²)
W=7.85×d
d=botenya
Fumana boima ka m² ea poleiti ea tšepe e botenya ba 4mm. Boima ka m² = 7.85 x 4 = 31.4kg
Phaephe ea tšepe (ho kenyeletsoa phaephe ea tšepe e se nang sekoli le e qhibilihisitsoeng) (kg/m2)
W=0.0246615×S (DS)
D = bophara ba kantle
S = botenya ba lebota
Fumana boima ka m ea phaephe ea tšepe e se nang sekoli e nang le bophara ba kantle ba 60mm le botenya ba lebota ba 4mm. Boima ka m = 0.0246615 × 4 × (60-4) = 5.52kg
Nako ea poso: Mphalane-08-2023