Raws li cov khoom siv los hloov cov hlab ntsha ntawm cov hlab ntsha, qhov ua tau zoo ntawm txhuas capillary raj yog ib qho tseem ceeb hauv kev ntsuam xyuas lawv cov kev siv tau hauv cov tub yees xws li tsev neeg tub yees thiab lub freezers. Aluminium muaj qhov zoo tshaj plaws ductility, thermal conductivity, lub teeb yuag, thiab zoo machinability, ua tau raws li ntau yam kev xav tau los hloov tooj liab hauv lub tub yees.
Thaum lub sij hawm kev kos duab, txhuas raj yog nyob rau hauv ib qho kev ua hauj lwm -hardened lub xeev, pom muaj zog thiab hardness, thaum txo lub raj lub ductility. Piv txwv li, lub raj tiav (Φ1.9 hli × 0.6 hli) muaj lub zog tensile ntawm 225.50 MPa thiab elongation ntawm 5.0%. Nyob rau hauv cov nqe lus ntawm lub siab tsis kam, aluminium capillary raj tuaj yeem tiv taus siab, tsis muaj deformation lossis to tom qab tuav ntawm 6.9 MPa rau 60 vib nas this. Lawv suav qhov siab tshaj plaws ua haujlwm siab tuaj yeem ncav cuag 19.4 MPa.
Tom qab 200 teev ntawm acidic ntsev tsuag tshuaj ntsuam, lub txhuas capillary raj pom tsis muaj deformation los yog to. Metallographic tsom xam kuj qhia tias tsis muaj intergranular lossis transgranular corrosion. Raws li ib txwm ua haujlwm ntawm lub tub yees, nws ua tau raws li 10- xyoo yuav tsum tau ua, tab sis muaj zog acid lossis alkaline ib puag ncig yuav tsum zam. Ib hom tshiab ntawm corrosion-resistant, ultra-slippery aluminium capillary raj patented thev naus laus zis, tshwm sim hauv xyoo 2025, ntxiv tiv thaiv kev yaig los ntawm cov dej ua haujlwm corrosive los ntawm kev tsim cov kua ua ntej ntub dej ntawm phab ntsa sab hauv. Aluminium capillary raj muaj kev ua tau zoo ntawm kev khoov zoo, muaj peev xwm raug mob ntau tshaj kaum zaug ntawm 3 hli radius mandrel yam tsis muaj deformation lossis tawg tom qab khoov. Tsis tas li ntawd, nws qhov kev hloov pauv hloov pauv tom qab khoov yog zoo ib yam nrog cov tooj liab capillary raj ntawm tib cov lus qhia.
Kev hloov cov raj tooj liab ncaj qha tuaj yeem cuam tshuam rau kev siv hluav taws xob. Kev ntsuas sib piv tau pom tias siv lub voj voog aluminium rov qab cov yeeb nkab sib dhos nrog txhuas capillary hlab tau nce qhov nruab nrab txhua hnub siv hluav taws xob ntawm lub tub yees los ntawm kwv yees li 10.20%; Txawm li cas los xij, thaum siv ua ke nrog kev ua kom zoo tshaj plaws grooved aluminium rov qab yeeb nkab sib dhos, lub zog siv tau nce los ntawm kwv yees li 1.113%, ua tiav qib kev siv hluav taws xob nce mus txog ntawm cov tsoos tooj liab raj sib dhos. Nyob rau hauv cov nqe lus ntawm kev tswj suab nrov, cov qauv ntsuas xws li siv cov cua sov shrink tubing los yog aluminium ntawv ci daim kab xev kom nruj kho lub capillary raj rau cov xa rov qab roj yeeb nkab tuaj yeem txo cov suab nrov. Kev siv nws ua ke nrog grooved aluminium rov qab cov kav dej tuaj yeem txhim kho kev sib pauv hluav taws xob ntxiv thiab pab tswj cov suab nrov.
