Yuav daws qhov teeb meem ntawm cov xuab zeb poob tawm Waterproof Sandpaper li cas?
Rau cov neeg siv uas feem ntau siv cov ntawv tsis muaj dej tsis zoo, cov xuab zeb poob yog lawv cov teeb meem nyuaj tshaj plaws, thiab tseem yog cov teeb meem kev txhawj xeeb tshaj plaws ntawm cov ntaub ntawv tsis muaj dej tsis zoo. Yog tias cov ntawv xuab zeb dej ua los ntawm cov ntawv xaum xaum ib txwm tso cov xuab zeb, qhov no yog qhov teeb meem zoo ntawm cov khoom.
(1) Dab tsi yog viscous xuab zeb ntau lawm? Synthetic fibers yog siv los ua raw cov ntaub ntawv thiab nonwovens yog siv los tsim non-woven xav nrog ib tug tej thickness thiab siab fluffiness. Tom qab ntawd cov abrasives thiab adhesives yog sib npaug ntawm cov khoom tsis-woven. Tom qab ziab, cov abrasives ua raws cov fibers los ntawm kev ua ntawm adhesives los ua cov xuab zeb muaj peev xwm polishing.
(2) Cov kev cai tshwj xeeb rau adhering xuab zeb rau waterproof abrasive ntawv.
1. adhesive: cov nplaum no txawv ntawm cov nplaum uas siv los ua cov khoom siv tsis-woven. Lub qub yog emulsion nplaum thiab tom kawg yog kua nplaum nplaum. Nyob rau hauv thiaj li yuav ua rau abrasive daim ntawv cog lus nrog cov fibers khov kho, thiab vim hais tias ntawm lub tshav kub generated thaum lub sij hawm polishing txheej txheem, nto ntawm polishing log tuaj yeem ncav cuag siab li 150 ~ 180 degree. Yog li ntawd, rau adhesives, dua li muaj peev xwm adhesion zoo, lawv yuav tsum muaj kev kub siab ua haujlwm. Tam sim no, hloov phenolic resin, epoxy resin, thiab polyurethane resin feem ntau siv txawv teb chaws.
2. Adhesion: Nws yog feem ntau ua tiav ntawm cov khoom siv tshwj xeeb tom qab ua tiav. Txhawm rau kom ntseeg tau qhov sib xws ntawm abrasives ntawm cov khoom, txoj kev siv cov abrasives yog qhov tseem ceeb tshwj xeeb. Tam sim no, cov hmoov txau txoj kev yog dav siv. Nws cov qauv yog hopper nrog abrasives rau saum. Nyob rau hauv lub hopper, muaj ib tug tawm yob nrog elastic khaub ncaws. Lub discharging yob rotates thiab cov abrasives poob rau hauv rab koob daim ntaub sib npaug. Nyob rau sab ntawm qhov tawm yob, muaj ib lub vibrator nrog ib tug hlau txhuam. Cov abrasives poob rau hauv rab koob ntaub yog tev tawm los ntawm kev co thiab poob rau hauv cov ntaub tsis-woven.
