Ingaba abavelisi beProfayile yeAluminiyam baBala njani iProfayile 'yokuthwala umthwalo?

Ingaba abavelisi beProfayile yeAluminiyam baBala njani iProfayile 'yokuthwala umthwalo?

Iiprofayili ze-Aluminiyam zisetyenziswa kakhulu njengezixhobo zenkxaso, ezifana nezakhelo zezixhobo, imida, imiqadi, izibiyeli, njl njl. Ukubalwa kwe-deformation kubaluleke kakhulu xa ukhetha iiprofayili ze-aluminium. Iiprofayili ze-Aluminiyam ezinobunzima obuhlukeneyo bodonga kunye namacandelo ahlukeneyo ahlukeneyo aneenguqu ezahlukeneyo zoxinzelelo.

Indlela yokubala umthamo wokuthwala umthwalo weeprofayili ze-aluminium ye-industrial? Sidinga kuphela ukwazi ukubala njani ukuguqulwa kweeprofayili ze-aluminium ye-industrial. Ukwazi ukuguqulwa kweeprofayili ze-aluminium yezoshishino, sinokubala umthamo wokuthwala umthwalo weeprofayili.

Ngoko ke ubala njani i-deformation esekelwe kumandla kwiprofayili?受力1

Makhe siqale sijonge iindlela eziphambili zokulungisa iiprofayili ze-aluminium. Kukho iintlobo ezintathu: ezilungisiweyo kwelinye icala, zixhaswe kuzo zombini iziphelo, kwaye zilungiswe kuzo zombini iziphelo. Iifomula zokubala zamandla kunye nokuguqulwa kwezi ndlela zintathu zokulungisa zahlukile.

Makhe siqale sijonge ifomula yokubala ukuguqulwa kweeprofayili ze-aluminium phantsi komthwalo omileyo:

受力2

Ezi zingentla ziyifomula zokubala ukuguqulwa komthwalo we-static xa isiphelo esinye sisisigxina, zombini iziphelo zixhaswa, kwaye zombini iziphelo zilungisiwe. Inokubonwa kwifomyula ukuba isixa-mali se-deformation sisona sikhulu xa isiphelo esinye sisisigxina, silandelwa yinkxaso kuzo zombini iziphelo, kwaye i-deformation encinci xa iziphelo zombini zilungiswa.

Makhe sijonge kwifomula yokubala i-deformation phantsi komthwalo:

受力3Olona xinzelelo luvumelekileyo lokugoba lweeprofayili ze-aluminium:

受力4

Ukugqithisa olu xinzelelo kunokubangela ukuba iprofayili ye-aluminium iqhekeze okanye iphuke.

m: ingxinano yomgca weprofayile yealuminiyam (kg/cm3)

F: Layisha (N)

L: Ubude beprofayili yeAluminiyam

E: Imodyuli yeelastiki (68600N/mm2)

Mna: inertia edibeneyo (cm4)

Z: Inertia enqamlezileyo (cm3)

g: 9.81N/kgf

f: Imali yotshintsho (mm)

Yenza umzekelo

受力5

 

Oku ngasentla yifomula yokubala yokuguqulwa kwamandla kwiiprofayili ze-aluminium ye-industrial. Ukuthatha iphrofayili ye-aluminium ye-4545 njengomzekelo, sele sisazi ukuba ubude beprofayili ye-aluminium yi-L = 500mm, umthwalo ngu-F = 800N (1kgf = 9.81N), kwaye zombini iziphelo zixhaswa ngokusisigxina, ngoko ke i-aluminium iprofayili ye-deformation = iformula yokubala amandla yeeprofayili ze-aluminium yoshishino yile: indlela yokubala: isixa se-deformation δ = (800 × 5003) / 192 × 70000 × 15.12 × 104≈0.05mm. Le yimali yokuguqulwa kweprofayili ye-4545 ye-aluminium yoshishino.

受力6

Xa sisazi i-deformation yeeprofayili ze-aluminium ye-industrial, sibeka ubude kunye nokuguqulwa kweeprofayili kwifomula yokufumana umthamo wokuthwala. Ngokusekelwe kule ndlela, sinokunika umzekelo. Ukubalwa komthwalo wemitha ye-1 imitha ye-1 imitha usebenzisa i-2020 yeeprofayili ze-aluminium ye-industrial ibonisa ngokucacileyo ukuba umthamo wokuthwala umthwalo ngu-20KG. Ukuba isakhelo silungisiwe, umthamo wokuthwala umthwalo unokunyuswa ukuya kwi-40KG.

受力7

Aluminiyam iprofayile deformation ngokukhawuleza itheyibhile khangela

I-aluminium yeprofayili ye-deformation ekhawulezayo itafile yokutshekisha isetyenziselwa ukuchaza inani le-deformation eliphunyezwe ngamaprofayili e-aluminium yeenkcukacha ezahlukeneyo phantsi kweempembelelo zamandla angaphandle phantsi kweendlela ezahlukeneyo zokulungiswa. Le mali yokuguqulwa inokusetyenziswa njengereferensi yamanani kwiipropati ezibonakalayo zesakhelo seprofayili ye-aluminium; abaqulunqi bangasebenzisa lo mzobo ulandelayo ukubala ngokukhawuleza ukuguqulwa kweeprofayili ze-aluminium kwiinkcazo ezahlukeneyo kumazwe ahlukeneyo;

Ubungakanani beprofayili yeAluminiyam yokunyamezela

Uluhlu lokunyamezela iprofayili yeAluminiyam

受力8

Iprofayili yeAluminiyam enqamlezileyo ukunyamezelana komgca othe ngqo

受力9

Iprofayili yeAluminiyam yokunyamezela umgca othe ngqo

受力10

Ukunyamezela i-angle yeprofayili ye-aluminium

受力11

Ngaphezulu sidwelise uluhlu oluqhelekileyo lokunyamezelana kwe-aluminiyam ngokweenkcukacha kwaye sanikezela ngedatha eneenkcukacha, esinokuzisebenzisa njengesiseko sokugqiba ukuba ngaba iiprofayili ze-aluminium ziyimveliso efanelekileyo. Kwindlela yobhaqo, nceda ubhekisele kumzobo weskimu ongezantsi.

受力 最后

Ihlelwe nguMay Jiang esuka kwiMAT Aluminium


Ixesha lokuposa: Jul-11-2024