Nyob hauv txhua hnub siv tsheb, neeg feem coob tsuas mob siab txog kev tswj ntawm sab hauv ntawm lub tsheb, thiab feem ntau tsis quav ntsej txog kev tiv thaiv ntawm cov xim. Nyob rau hauv qhov tseeb, xim muaj zog heev. Tom qab muaj kev xuab zeb, cov xim muaj zog yuav poob qis nws cov lus. Plating siv lead ua yog tam sim no qhov zoo tshaj plaws thiab zoo ntawm txoj kev tiv thaiv xim. Nws tseem yog ib lub tshuab txhim khu kev lag luam ruaj khov uas ua tau zoo thiab ruaj khov tiv thaiv cov xim muaj hlau thiab tiv thaiv kom txhob muaj kev cuam tshuam rau xim xim. Cov txheej txheem yooj yim rau plating yog Cov khoom siv yog SIO2 inorganic substance, uas muaj peev xwm tsim ntau cov qauv ntawm kev tsim kho qhov chaw. Lub tsho tiv no muaj kev tiv thaiv ultraviolet rays, roj tsis ua haujlwm, tsis tshua muaj zog ntawm lub zog, thiab hydrophobicity, yog li tiv thaiv cov xim hlau.
Yuav ua li cas los txhim kho tus tswv tsev txoj kev saib xyuas?
Apr 01, 2018
Xa kev nug