Nyob rau hauv kev zam kev tsim khoom, yuav muaj ib qho tsis xws luag yog "Tail Shrinkage" tom qab alkali tab tom ua tau raws li cov ntaub ntawv no tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua tiav, thiab muaj peev xwm kev nyab xeeb rau kev nyab xeeb. Nyob rau tib lub sijhawm, thaum cov khoom tsim tawm yog yuav tsum tau kho qhov chaw saum npoo av thiab ua tiav ntawm cov khoom tsaus nti thiab ua tiav rau cov khoom tsaus ntuj lossis lwm yam, thiab lwm yam, uas yog ib qho teeb meem sib txawv hauv kev tsim khoom.
Kev faib tawm tus Tsov tus tw:"Tail txo" tau muab faib ua ob hom: Hollow Tail Txo: Qhov kawg} Cov kab ke Hollow, thiab lwm qhov xwm txheej ntawm ntug, thiab cov kev taw qhia ntev yog qhov kev ntsuas zoo nkauj (khob {{3} Zoo li tus Tsov tus tw, feem ntau ntawm cov khoom siv hlau, feem ntau yog cov tawv nqaij ntawm cov khoom siv roj av, feem ntau Ob. Annular Tailing: Qhov ob kawg ntawm qhov extrusion shunt cov khoom lag luam (lub taub hau) yog qhov pom tseeb ntawm ob lub qhov muag shrinkage ntawm txhua lub qhov khoom yog symmetrical.
Tsim ntawm curled tails
Ua rau tus Tsov tus tw shrinkage:Cov neeg kho tshuab cov kev mob rau cov tw tawm yog raws li hauv qab no; Thaum cov theem kev tawm tswv yim xaus thiab extrusion gasket maj mam nce thiab tsim ib qho DN kheej kheej ntawm lub tog raj kheej. Qhov kev quab yuam no, nrog rau lub tog raj kheej dt lub tog raj kheej, thaum lub tog raj kheej dt (DN. Lub Extrusion cov kev tsim los ntawm Tail Retence yog: 1. Tus Tsov tus me nyuam tsis huv, 3. Lub Excenusion ceev faj tom qab extrusion.
Kev tshem tawm txoj kev ntawm tus Tsov tus tw shrinkage:Measures to reduce and prevent the formation of tail shrinkage: 1. Strictly follow the process regulations to shear the residual and saw the head and tail, keep the lining of the extrusion cylinder intact, prohibit the extrusion gasket from rubbing oil, reduce the temperature of the aluminum rod before extrusion, use a special convex gasket, and use a reasonable length of residual material. 2. The surface of extrusion tools and aluminum rods should be Kev ntxuav huv . 3. Khij} Khij qhov loj ntawm Extrusion lub roojvimno lub rooj tog ntau thiab hloov cov cuab yeej tsis tsim nyog 4. Saws extrusion. Nyob rau hauv tom qab theem tom qab ntawm extrusion ceev yuav tsum tau qeeb, thiab cov tuab ntawm cov txheej txheem seem yuav tsum tau siv los ua kom cov khoom seem rau extrusion.
