Av nplaum Hlau: hom thiab ua hauj lwm cov kev cai

Zoo ib yam cov nplaum rau cov hlau, uas muaj peev xwm yuav nrhiav tau nyob rau hauv cov khw, muaj siab zog. Ntau zaus tshaj tsis adherend qauv collapses hauv lub nplaum txheej, thiab connectable nyob rau ib thaj tsam ntawm cov hlau. Yog li, lub zog ntawm lub nplaum daim ntawv cog lus feem ntau yog nyob rau ntawm qhov chaw npaj.

Feem ntau txheej yog kab mob nrog rau ntau yam roj, zeb scale, xim residues, ib co kua nplaum ntawm corrosion. Tshem tawm tag nrho cov no yuav ua tau tag nrho ob qho sib thiab mechanically.

Ua ntej siv cov nplaum rau cov hlau kab mob nto twb kho nrog daws ntawm acids los yog alkalis, thiab tshwj xeeb compositions rau tshem xeb thiab purification. Qhov kev txiav txim ntawm acids los yog alkalis yog raws li nyob rau hauv lub fact tias lub oxides no puas ceev tshaj lub puag cov ntaub ntawv uas. Ntxuav tau nrog tshuaj reagents yog sai thiab npaum li cas cheaper tshaj machining. Tsis tas li ntawd tsim rau ntawm qhov chaw ntawm ib tug hlau resistant txheej, uas tsub kom lub dag lub zog thiab durability ntawm lub nplaum daim ntawv cog lus.

Neeg kho tshuab ntxuav ntawm qhov chaw no kuj ua ua ntej koj thov cov nplaum rau cov hlau. Nyob rau hauv rooj plaub no tus khoom kho mob siv ntxhib no los txhuam (hlau txhuam, txhaj koob tshuaj tivthaiv blasting sib, Sandblasting los yog ntwav txhuam ntoo). Cov uas ua nto yuav rougher, uas tsub kom tus sis cheeb tsam thiab lub nplaum hlau yog li ntawd tsub kom daim ntawv cog lus lub zog.

Niaj hnub no lub lag luam muaj ib tug ntau yam ntawm adhesives rau hlau, uas muaj lawv tus kheej cov yam ntxwv thiab muaj pes tsawg leeg.

Ib qho ntaub ntawv yog ib tug polyvinyl acetate nplaum (PVA). Nws tso cai rau kev ua hauj lwm nrog ntoo, iav, hlau, tawv, fabrics thiab lwm tus. Cov tshuaj yeeb dej caw yog thov kom muaj ib nyias txheej rau pre-degreased chaw uas nruj nreem compressed. cov kua nplaum tseeb tshwm sim tom qab 20 feeb, ua kom tiav kom qhuav yog cai ib hnub twg tom qab.

Nws thov thiab xws li paub cov nplaum rau cov hlau thiab roj hmab, raws li ib tug "Caij". Nws tseem yog tau muab ntoo, ceramics, yas, ntsoov, nyuaj PVC, etc. Qhov no cov ntaub ntawv uas tsis yog lom thiab flammable. Nrog nws yuav tsum ua hauj lwm xwb nyob rau hauv zoo-ventilated los yog qhib qhov chaw, deb ntawm qhov chaw ntawm tiv cav tseb. Txhais tau tias thov thinly nyob rau npaj nto, tau tso cai rau sawv ntsug rau kaum tsib feeb, thiab ces hlob lub mating cov ntaub ntawv rau ib tug ob peb lub vib nas this.

Yuav luag txhua leej txhua tus paub txog lub epoxy nplaum, uas kuj tso cai rau lub kev twb kev txuas ntawm cov hlau, iav, ntoo thiab lwm yam ntaub ntawv. Nyob rau hauv tas li ntawd, cov txhais tau tias siv tau rau kev sib khi tej kab nrib pleb thiab qhov, nws yuav tsum muaj ntaub ntawv raws li ib tug lacquer txheej.

Qhov no nplaum hlau muaj roj thiab dej tsis kam, thiab kuj pab raws li ib tug zoo insulator. Cov tshuaj yeeb dej caw yog tshuaj lom. Tom qab kev sib cuag nrog daim tawv nqaij, nws yog tsim nyog kom sai li sai yaug nrog dej sov thiab xab npum. Txhais tau tias yuav siv tsis tau rau tsevneeg ntawm khoom noj. Self nplaum npaj siv cov supplied cob thiab hardener nyob rau hauv ib qho ratio ntawm 10 mus rau 1. Tom qab stirring rau 10 feeb, cov tshuaj yuav tsum tau ua ntawv thov rau ntawm qhov chaw ntawm ib tug nyias txheej, thiab ces txuas rau lawv. Ib nrab tov polymerization tshwm sim los ntawm lub 4 teev tiav solidification tshwm sim tsis pub dhau hnub.