(1) Kev txwv tsis pub siv cov khoom siv raw rau steel nruas Ua kom cov nruas steel, cov khoom siv yuav tsum muaj cov ntsiab lus qis thiab cov yas zoo. Vim nws txoj kev ua tau zoo, vuam, stamping, thiab bulging yog ib qho yooj yim los xyuas kom zoo. Tab sis lub hemming yog txawv, vim hais tias qhov luaj li cas ntawm hemming roller zawj tsis tuaj yeem hloov nrog cov txheej txheem hemming, thiab lub zog hemming yuav tsum maj mam hloov mus rau qhov chaw ntawm hemming los ntawm cov khoom siv peripheral, kom lub chaw tuaj yeem dov. Qhov zoo dua ntawm cov khoom siv plasticity, qhov nyuaj dua nws yog kom xa cov quab yuam. Nws yog qhov xav tias yog tias cov khoom ntawm lub nruas steel yog lub caij nplooj ntoos hlav steel, tib yam khoom raws li txoj cai ntawm lub moos, tsis hais txog dov kaum txheej, kuv ntshai nws kuj yooj yim rau yob 20 txheej, vim nws muaj elasticity zoo thiab rigidity, thiab sealing quab yuam yog siab heev los ntawm lub ntim sab nrauv. Yooj yim mus txog qhov chaw. Tab sis qhov no yog tsis yooj yim sua, vim hais tias cov khoom no muaj zoo elasticity, yog li tom qab qhov kawg ntawm dov, thaum lub dov quab yuam ploj, nws yog ib qho yooj yim rau rebound rov qab mus rau lub qub lub xeev, uas yog, rov qab mus rau qhov pib ntawm dov. Qhov no tsis yog qhov peb xav tau. Yog li ntawd, nws yog tsis yooj yim sua rau peb xaiv cov ntaub ntawv elastic heev. Nyob rau hauv cov nqe lus ntawm cov ntaub ntawv tam sim no siv los ua steel nruas nyob rau hauv lub ntiaj teb no, peb lub teb chaws muaj cov ntaub ntawv nruj tshaj plaws, yog li qhov zoo yog qhov nyuaj rau lav. Thiab tus naj npawb ntawm curling txheej tsis tshaj xya. Raws li kev tshawb fawb ntawm cov kws tshaj lij txawv teb chaws, tus naj npawb ntawm cov txheej txheem steel nruas hemming yuav tsis pub tshaj xya, thiab pom tseeb tias qhov sib khi quab yuam tsis tuaj yeem kis tau mus deb.
(2) Qhov kev txwv ntawm steel nruas coil sealing tshuab. Tam sim no, cov tshuab thev naus laus zis siab tshaj plaws hauv lub ntiaj teb yog qhov zoo sib xws, tshwj tsis yog kev hloov pauv ntawm crimping yob profile thiab qhov sib txawv ntawm cov coil sealing ceev. Cov txheej txheem no yog txoj kev pheej yig tshaj plaws rau kev tsim khoom loj, thiab nws kuj yog txoj hauv kev nrog tus nqi qis tshaj plaws. Yog tias koj tsis' tsis quav ntsej txog cov no, tej zaum yuav muaj txoj hauv kev zoo dua los xa cov kev sib khi kom deb, kom cov curling tuaj yeem ncav cuag ntau tshaj xya txheej. Tab sis rau steel nruas, ib tug zoo xya-txheej crimp yog txaus. Yog tias qhov tam sim no zoo ntawm crimp tsis zoo, koj yuav tsum nrhiav lwm yam teeb meem.
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