Bututun ƙarfe marasa sumul da na walda suna taka muhimmiyar rawa a matsayin muhimman abubuwan da suka shafi masana'antar zamani.
An fi bayyana takamaiman waɗannan bututun ta hanyar diamita na waje (OD), kauri na bango (WT) da tsayi (L), yayin da lissafin nauyin bututun ƙarfe ya dogara ne akan waɗannan sigogin girma tare da yawan (ρ) na kayan. Don tsara ayyuka, sarrafa farashi da dabaru, lissafin daidai na nauyin bututun ƙarfe yana da mahimmanci. Wannan labarin ya gabatar da hanyoyi uku don ƙididdige nauyin bututun ƙarfe kuma yana nuna yadda ake amfani da su tare da misalai masu amfani.
Lissafi na Asali na Nauyin Bututu
Ana iya kimanta nauyin bututun ƙarfe ta hanyar ƙididdige girmansa da ninkinsa da yawa na ƙarfe.
Ga bututun ƙarfe masu zagaye (gami da sumul da kumabututun ƙarfe da aka welded), ana ƙididdige nauyin kamar haka:
Nauyi(kg)=×(OD)2-(OD-2×WT)2)×L×ρ
ODshine diamita na waje na bututun ƙarfe a cikin mita (m);
WTshine kauri na bango na bututun ƙarfe a mita (m);
Lshine tsawon bututun ƙarfe a mita (m);
ρYawan ƙarfen shine yawan ƙarfe, ga ƙarfen carbon na yau da kullun, yana da kusan kilogiram 7850/m3.
Tsarin lissafi mai sauƙi: raka'o'in sarki
Nauyi(lb/ft)=(OD (in)−WT (in))×WT (in)×10.69
inda 10.69 wani abu ne da aka ƙididdige daga yawan ƙarfe da kuma canjin naúrar da ake amfani da shi don canza girma daga inci zuwa fam a kowace ƙafa ta tsawonsa.
Misalan Lissafi
A ce wani ɓangare nabututun ƙarfe na ERWda diamita na waje na inci 10 da kauri na bango na inci 0.5, ƙididdige nauyin kowace ƙafa ta tsawonsa: Nauyi (lb/ft) = (10-0.5) x 0.5 x 10.69
Nauyin da ake buƙata a kowace ƙafa na tsawon wannan bututun ƙarfe ya kai kimanin fam 50.7775.
Algorithm mai sauƙi: raka'o'in ma'auni
Nauyi (kg)=(OD−WT)×WT×L×0.0246615
OD shine diamita na waje na bututun ƙarfe, a cikin mita (mm);
WT shine kauri na bango na bututun ƙarfe a mita (mm);
L shine tsawon bututun a mita (m);
An gina 0.0246615 bisa yawan ƙarfe (kimanin 7850 kg/m³) da kuma ma'aunin juyawa na raka'a.
Misalan Lissafi
A ce muna dabututun ƙarfe mara sumultare da diamita na waje na 114.3 mm, kauri na bango na 6.35 mm, da tsawon mita 12. Lissafa nauyin bututun ta amfani da dabara mai sauƙi da ke sama:
1. Lissafa bambanci tsakanin diamita da kauri na bango: 114.3 - 6.35 = 107.95. 2.
2. Lissafa nauyin ta hanyar maye gurbin dabarar: 107.95 × 6.35 × 12 × 0.0246615. 3.
3. Sakamakon shine: 202.86
Saboda haka, jimillar nauyin bututun ya kai kimanin kilogiram 202.86.
Ma'aunin 10.69 da 0.0246615 a cikin dabarar sun dogara ne akan matsakaicin yawan ƙarfe. Nau'ikan ƙarfe daban-daban (misali bakin ƙarfe, ƙarfe mai ƙarfe, da sauransu) na iya samun yawan yawa daban-daban kuma dole ne a daidaita abubuwan daidai gwargwado.
Waɗannan lissafin suna ba da kimanta nauyinbabu matsalada bututun ƙarfe da aka haɗa da walda. Saboda bambancin yawan kayan aiki, juriyar masana'antu, da sauran dalilai, ainihin nauyin na iya bambanta.
Nauyin gaske na iya bambanta dangane da juriyar masana'anta da yawan kayan aiki, don haka wannan dabarar kimantawa ce. Don yin lissafin daidai na nauyin, ana ba da shawarar ku koma ga bayanan da masana'anta suka bayar ko kuma ku ɗauki ainihin ma'auni.
Don ƙididdigar injiniyanci ko ƙididdigar kasuwanci, ana ba da shawarar a yi amfani da ƙarin bayanai masu cikakken bayani ko kuma a tuntuɓi masu samar da bututun ƙarfe don samun ingantaccen bayanin nauyi.
Lissafin nauyin bututu muhimmin ɓangare ne na ƙirar injiniya da kuma kula da farashi, da kuma fahimtar da kuma amfani da waɗannan lissafin yadda ya kamata. Wannan hanyar lissafi ta shafi bututun ƙarfe mara shinge mai kauri mai kauri na bango. Idan aka yi la'akari da bututun ƙarfe mara shinge na bango mai kauri sosai, ƙila a buƙaci a yi la'akari da lissafin da ya fi rikitarwa.
tags: nauyin bututu, bututun ƙarfe, sumul, welded.
Lokacin Saƙo: Fabrairu-27-2024