Nzira dzeKuisa Poda - ELECTROSTATIC PRAYING
Electrostatic spraying ndiyo inonyanya kushandiswa nzira yekuisa powder coating zvinhu. Kukura kwayo kuri kuwedzera pamwero unoshamisa. Yakagadzirwa pakati pe60's, iyi nzira ndiyo inonyanya kushanda nzira yekuisa machira uye inopera munguva pfupi. Zvisinei, kugamuchirwa kwehupfu hwekuputira mujeniral pakutanga yaive inononoka muUS. MuEurope, iyo electrostatic poda yekupfapfaidza pfungwa yakagamuchirwa zviri nyore, uye tekinoroji yakafamba nekukurumidza zvakanyanya kupfuura kumwe-kupi pasirese. Nekudaro, kufambira mberi kwakawanda kwakaitwa mune zvese zvehupfu uye midziyo yekushandisa inowanikwa kune vanogadzira. Izvi zvinosimudzira generally inosanganisira matambudziko ane chekuita ne electrostatic poda yekupfapfaidza coating, pamwe nekuvandudza mashandiro emashandiro ezvikamu zvehurongwa. Nekuda kweizvozvo, kune akasiyana akasiyana e electrostatic poda yekupfapfaidza coatings masisitimu aripo nhasi.
Kuisa poda yekuputira zvinhu neiyo electrostatic poda yekupfapfaidza maitiro, zvishanu zvakakosha zvidimbu zvemidziyo zvinodiwa:
- Powder feeder unit;
- Electrostatic poda pfapfaidzo pfuti, kana yakaenzana kugovera mudziyo;
- Electrostatic voltage source;
- Powder recovery unit;
- Spray booth
Kune mamwe maturusi ekusimudzira kushanda kwezvikamu zvakakosha izvi. Mukushanda kweelectrostatic powder spray system, hupfu hunopepetwa, kana kupomba, kubva pachikamu chekudyisa kuburikidza nepombi yehupfu kusvika kupfuti yekupfapfaidza. Pfuti dzekupfapfaidza dzinonangidzira hupfu hwakananga kuchikamu nenzira yegore rakapararira. Simba rekufambisa rinopihwa zvese nemhepo inotakura hupfu kubva kufeeder unit kuenda kupfuti yekupfapfaidza, uye neelectrostatic charge inopihwa kuhupfu papfuti. Electrostatic voltage inopihwa kupfuti yekupfapfaidza nenzvimbo yakagadzirirwa kufambisa yakakwira-voltage, yakaderera-amperage magetsi emagetsi kune electrode (s) yakanamatira papfuti yekupfapfaidza. Sezvo gore rakapararira, rakachajiswa upfu hwemagetsi richiswedera pedyo nechikamu chakadzikwa, nzvimbo yemagetsi yekukwezva inogadzirwa, ichikwevera zvidimbu zvehupfu pachikamu ichi uye kugadzira chidimbu chehupfu. Overspray-kana poda isinganamate kune chikamu-inounganidzwa kuti ishandiswezve kana kuraswa. Mumuunganidzi unit, hupfu hunoparadzaniswa nemhepo inofambisa. Poda inounganidzwa inozodzokororwa otomatiki kana nemaoko kufeeder unit kuti inyorwe zvakare. Mhepo inopfuudzwa nemusefa midhiya mudziyo kupinda mumhepo yakachena-plenum uyezve kuburikidza yekupedzisira, kana mhedziso, kusefa ichidzokera munzvimbo yechirimwa semhepo yakachena. Chikamu chakaputirwa chinobva chatakurwa kubva munzvimbo yekushandisa uye chinoiswa mukupisa, izvo zvinoguma nekuyerera kunze uye kurapwa kwehupfu.
Yakanakira Economic
Ne electrostatic poda yakapfapfaidza, inosvika 99% yehupfu yakawandisa inogona kudzoserwa uye kuiswazve. Kurasika kwezvinhu kunowanikwa nehupfu kudiki kana kuchienzaniswa nemasisitimu ekuputira mvura.
Mukuwedzera, kazhinji poda inopa imwe-jasi yekuvhara pasina kumhanya uye sags pane yakapedzwa chikamu. Kushandisa a primer jasi pamberi pejasi rekupedzisa harifanirwe, kuderedza nguva uye kushanda kunodiwa nemulticoat liquid system.
Kuderedzwa kwemafuta emafuta mukurapa hupfu kazhinji kunobva mukushandiswa kwemahovhoni madiki, nguva pfupi yeovheni uye, mune dzimwe nguva, kuderera kwetembiricha yehovhoni. Iko hakuna chikonzero chekupisa kana kutsamwa booth makeup mweya sezvo mweya uchidzoserwa kunzvimbo yechirimwa semhepo yakachena.
Imwe mari yekuchengetedza, kusanganisira yakaderera mitengo yekuchenesa, inogona kuwanikwa nehupfu. Hapana chikonzero chekusanganisa, kudzoreredza, uye kurasa zvinonyungudutsa kana uchizora nehupfu. Kazhinji, hapana chinonyungudutsa kana makemikari anoshandiswa mukuchenesa ingave iyo poda yekushandisa kana matumba ekupfapfaidza. Sezvo mhepo uye vacuum cleaners vari majinirally zvese zvinodikanwa pakuchenesa nehupfu, basa uye zvinhu zvekuchenesa zvinodzikisira uye kuraswa kwengozi yependi sludge kunobviswa.
Chikamu chikuru chezvipfeko zvemvura zvinosanganisirwa dzimwe nguva zvine muchetura uye zvinopisa zvinonyungudutsa zvinorasika mukuita kwekushandisa. Kuchengetera zvinhu, uye mitengo yekubata yezvinonyungudutsa zvinogara zvichidhura zvakanyanya. Nehupfu, mutengo unosanganisira mudziyo wekudzora kusvibiswa, nguva yekudzima, uye kuraswa kwemarara zvinonyungudutsa zvinopera.
Kubvisa kushandiswa kwesolvent zvakare kunogona kuderedza zvinodiwa inishuwarenzi yemoto pamwe nemitengo inobhadharwa kuchengetedza moto inishuwarenzi kuchengetedza. Chekupedzisira mutengo wakashandiswa pa mil pa sikweya tsoka yefirimu wakaenzana, kana kuderera, mutengo wekuputira mvura muzviitiko zvakawanda.
Kureruka kweKushandisa
Iwo anowirirana ekupedzisira maitiro uye electrostatic "wraparound" inowanikwa muupfu yekupfapfaidza maapplication anobatsira kuderedza kudiwa kwevashandi vane hunyanzvi. Mukuwedzera, hapana chiyero che viscosity chekuchengetedza kana uchiputira nehupfu. Zvigadzirwa zvehupfu zvinouya "zvakagadzirira kupfapfaidza" kubva kumugadziri. Hapana nguva yekudzima inodiwa nehupfu. Chikamu chakaputirwa chinogona kutakurwa zvakananga kubva munzvimbo yekupfapfaidza kuenda kuchoto chekurapa. Mareti ekuramba anogona kudzikiswa, sezvingaita mari inobatanidzwa mukugadzirisazve zvikamu zvakarambwa. Kumhanya uye sags zvinowanzobviswa neupfu hwekuputira maitiro.
Kupfeka kusina kukwana kana kusina kunaka kunogona kupeperetswa kubva pachikamu (kusati kwapisa kupisa) uye kudzorerwa zvakare. Izvi zvinogona kubvisa basa uye mari inobatanidzwa mukubvisa, kugadzirisa, kugadzirisa, uye kudzokorora zvikamu zvakarambwa.Vashandisi vari kuona kuti iyo poda spray coating process inogadzirwa nyore nyore. Inogona kushandisa otomatiki pfuti movers, contouring michina, marobhoti, uye stationary pfapfaidzo pfuti chinzvimbo. Yese nguva yekugadzira inogona kazhinji kudzikiswa, kana vhoriyamu yekugadzira yakawedzera, nehupfu yekupfapfaidza coating. Kubvisa matanho akasiyana-siyana anodiwa neiyo yemvura yekuputira maitiro kunogona kuguma kune yakanyatso kupedzisa mutsara.