Introductio
Inindustrialproduction,humanfacesareoftendamagedbyhigh-speedparticles,moltenmetal,chemicalliquidsplashes,andharmfullight.Variousprotectivemasksmustbeusedforprotection.
Therearemanytypesofprotectivemasks,butaccordingtotheiruse,theycanberoughlydividedintofourtypes:anti-shockmasks,anti-corrosiveliquidsplashmasks,dust,smokeandvarioustoxicgasmasks,andradiationlinemasks.Kindof,thesemasksmustbeequippedwithobservationwindows.
Wheninuse,theprotectivemaskshouldbecleanandtransparent,withoutscratchesandcracks.Theconnectionbetweenthemaskandthehatholdershouldbefirm.Thestrapsofthehatrackshouldbeadjustedtomakeitfitontheheadwithmoderatetightness,safetyandcomfort.Thewingnutshouldfunctionwellandbeabletofixthemaskinapositionsuitableforviewing.
Architecture
1.Capbody
Thecapbody islocated infrontofit,withawiderbrim.
2.Fixingholes
Therearenofixingholesonbothsidesofthecapbody,androundteethareprovidedontheperipheryofthefixingholes.
(I) Headcircle
Theheadcircleislocatedinthecentralposition,whichplaysaroleofcomfortablehead.
(2) Fixingpiece
Theendofthefixingpieceisprovidedwithabucklingpartthatcanbetwistedforward.Therearegroovescorrespondingtothebumps.
(3) Earmuffs
Theearmuffsarefixedtothesupportframe,andthetopedgeoftheearmuffsareprovidedwithslidinggrooves,andtheslidinggroovesareprovidedwithpositioninggrooves.TheracksatbothendsItissheathedinthechute,andair-permeableperforationsarearrangedunderthechute.
Type
1.Weldingmask
Composita observatione fenestrae, filtri, tutelae et larvae, etc., ithasanti-spars, nociva et calorisulationis performantia. Ibi erecti, manus tenendae, dimidia larva, plena facieiformes, variae formas policae, quae apta sunt operationibus indistinctae.
2.Anti-impactmask
Adhibetur protectflyings, chemicalliquidsplashes,etc. Itis maxime usus est, moliendi, moliendi, stridandi, cauteriandi, operandi.
3.Heatprotectionandradiationmasks
Composedofmasksandheadbands.Commonlyusedaremetalmeshandcoatedheatinsulationmasks,whichareusedmoreinsmelting,furnacesandhigh-temperatureoperations.
Cautiones
① Reprehendo omnes partes larvarum forobviousscars, rimas, exasperat, orabnormalappearance.
② Reprehenderit partes themasktoseeif thescrewsarelooseorfallapart.
③Becausethereisagapbetweentheprotectivemaskandtheface,theprotectiveglassescanalsobeusedwiththeprotectivemask.
④Whenworkingwiththeweldingmask,inordertopreventthesparksfromhurtingthebody,donotstopusingitinthemiddle.
Cum ignis probationes et caloris probationes confirment an lucu- rentur.