Aluminium caps rau lub raj mis txhaj tshuaj yuav tsum tau kuaj thiab tswj lawv cov khoom siv kho tshuab, qhib quab yuam, thiab lwm yam khoom kom paub meej cov khoom zoo. Aluminium npog tuaj nyob rau hauv ob hom (B-hom), peb hom (C-hom), paj aluminium npog, thiab tsim kua muag qhib aluminium npog (D-hom). Lub zog tawg thiab lub zog qhib tag nrho ntawm cov pob qij txha txuas txuas yog kuaj thiab tshuaj xyuas nyias.
Cov khoom siv hluav taws xob ntawm cov khoom siv txhuas: Siv ib qho tsim nyog ntawm cov ntawv txhuas los ntawm tib lub batch tooj, siv lub cuab yeej nrog qhov dav (b) ntawm 12.5mm, qhov ntsuas qhov ntev (L0) ntawm 50mm, qhov sib npaug ntev (Lc) ntawm 75mm, thiab qhov hloov pauv arc vojvoog (r) ntawm tsawg kawg 20mm los txiav cov qauv uas tau teev tseg, thiab ua qhov kev sim ntawm lub tensile ntaus ntawv ntawm qhov ntsuas ceev ntawm 10mm / min ± 2mm / min. Tensile lub zog yog hais txog lub tensile load borne ib chav tsev pib transverse dav hlau thaum lub sij hawm ib tug tensile xeem kom txog thaum tawg. Elongation yog hais txog qhov sib piv ntawm qhov nce ntawm qhov kev ncua deb ntawm cov cim thaum lub sijhawm tawg hauv qhov kev sim tensile mus rau qhov pib ntsuas qhov ntev, qhia raws li feem pua.
Qhib quab yuam: Siv tus nqi tsim nyog ntawm txhuas npog, xyaum ob lub qhov nyob rau hauv tib lub dav hlau radial ntawm aluminium npog, kho ib qho kawg ntawm txhuas npog, thiab txuas rau lwm qhov kawg rau lub xov tooj ntawm tes. Ua qhov kev ntsuas ntawm qhov ceev ntawm (100 ± 10) mm / min, ntsuas thiab sau ob qhov kev ntsuas hauv qab no: a. Choj tawg quab yuam (qhov siab tshaj plaws quab yuam yuav tsum tau rau thawj choj tawg); b. Qhib tag nrho quab yuam (qhov siab tshaj plaws quab yuam yuav tsum tau qhib kiag li tsim kua muag raws kab engraved). Thaum lub sij hawm kev sim, nws yuav tsum tau torn tawm raws li engraved kab ntawm lub aluminium cover.