Ukugcinwa kwePowder Coating kunye noHambo

Ukupheka kwindoda Ukugcinwa kunye nokuphatha

Umgubo, njengazo naziphi na izinto zokugquma kufuneka zithunyelwe ngenqanawa, zifakwe kwi-inventri, kwaye ziphathwe kuhambo lwayo ukusuka kumenzi wokugquma umgubo ukuya kwindawo yokufakwa kwesicelo. Iingcebiso zabavelisi, iinkqubo nezilumkiso kufuneka zilandelwe. Nangona umgubo ohlukeneyo unokuba neemfuno ezithile, eminye imigaqo yehlabathi iyasebenza. Kubalulekile ukuba umgubo kufuneka uhlale unje:

• Ikhuselwe kubushushu obugqithisileyo;
• Ikhuselwe kumanzi kunye namanzi;
• Ikhuselwe ekungcoleni ngezinto zangaphandle, ezifana nezinye iipowder, uthuli, ukungcola, njl.

Ezi zinto zibaluleke kakhulu, zifanele ukucaciswa ngakumbi.

Ubushushu obugqithisileyo

Iipowders kufuneka zigcine ubungakanani bamasuntswana ukuvumela ukuphatha kunye nokusetyenziswa. Uninzi lwemibhobho ye-thermoset?ting yenziwe ukuba imelane nomlinganiselo othile wokuvezwa kubushushu xa ihamba kunye nokugcinwa kwayo. Oku kuya kuhluka ngokweentlobo kunye nokuqulunqwa, kodwa kunokuqikelelwa kwi-100-120 ° F (38-49 ° C) yokuvezwa kwexesha elifutshane. Xa la maqondo obushushu abalulekileyo egqithiswa ngalo naliphi na ixesha elide, olunye okanye zonke ezi nguquko zilandelayo zinokwenzeka. Umgubo unokutshiza, upakishe, kunye okanye udibanise kwisikhongozeli. Uxinzelelo lomgubo olunobunzima ngokwawo (Le., umde omde une?ers) unokukhawulezisa ukupakishwa kunye nokudityaniswa komgubo ukuya ezantsi kwesikhongozeli.

Abavelisi bacebisa amaqondo obushushu okugcina ixesha elide angama 80°F (27'C) okanye ngaphantsi. Ngaphandle kokuba ukuvezwa kwayo ekushiseni kuye kwagqithisa ixesha elide, umgubo oye wafumana utshintsho olunjalo ngokuqhelekileyo unokwaphulwa kwaye uhlaziywe emva kokudlula kwisixhobo sokuhlola.

Iipowdi ezineendlela zokunyanga ezikhawuleza kakhulu okanye zobushushu obuphantsi zinokutshintshana ngokwekhemikhali ngenxa yokuchanabeka kubushushu obugqithisileyo. Lo mgubo unokusabela ngokuyinxenye okanye "inqanaba B." Nangona ezi powders zinokophulwa, aziyi kuvelisa ukuqukuqela okufanayo kunye neempawu zokubonakala njengemida engavezwanga. Ziya kuba, kwaye zigcine ngokungenakujikwa, ukuqukuqela okuthintelweyo, ukuya kuthi ga kwinqanaba lokwakheka okomileyo.

Umgubo owenziwe ngemichiza ethintela ukunyanga ubushushu obungaphantsi kobushushu obuthile awudli ngokuba “kwinqanaba B” kumaqondo obushushu angaphantsi kwama-200°F (93°C).

Khusela ukufuma kunye naManzi

Amanzi kunye nomgubo azixubeki xa injongo kukutshiza njengomgubo owomileyo. Ukuvezwa kukufuma okugqithisileyo kunokubangela ukuba umgubo ufunxe umphezulu okanye ukufuma okuninzi. Oku kubangela ukuba ukuphathwa kakubi, njengokungaphumi kakuhle kwamanzi okanye ukungondleki kakuhle kwemipu, nto leyo enokukhokelela ekutshicelweni kompu kwaye ekugqibeleni ukuvaleka kombhobho. Isiqulatho somswakama ophezulu ngokuqinisekileyo siya kubangela ukuziphatha okungahambi kakuhle kwe-electrostatic, okunokubangela ukuguqulwa okanye ukunciphisa ukusebenza kakuhle kokudluliselwa kwaye, kwiimeko ezinzima, kuchaphazela ukubonakala kunye nokusebenza kwefilimu yokubhaka ebhaka.

Ungcoliseko

Ngenxa yokuba umgubo wokugquma yinkqubo eyomileyo yokwaleka, ukungcoliseka ngothuli okanye ezinye iipowders akunakususwa ngokucoca, njengepeyinti yolwelo. Kunyanzelekile, ke ngoko, zonke izikhongozeli zivalwe kwaye zikhuselwe kuthuli lokusila izityalo, izitshizi ze-aerosol, njl.

IINGCEBISO ZOKUGCINWA KWEPOWDER

Iipropati zozinzo lokugcinwa kweengubo zomgubo akufuneki zibangele iingxaki kwindawo yomsebenzisi wokugqibela, ngaphandle kokuba amanyathelo ambalwa alula athathiweyo. Phakathi kwezi zilumkiso zezi:

• 1. Lawula ubushushu, 80°F (27°C) okanye ngaphantsi. Khumbula ukuba umgubo ufuna indawo encinci yokugcina. Umzekelo, indawo elingana ne-semi-trekta?itrela enobungakanani betreyila ingathwala i-40,000 lbs. (1 8,143 kg) yomgubo, omalunga neelitha ezingama-15,000 (56,775L) zepeyinti elulwelo kwizinto eziqinileyo.
• 2. Jikelezisa ngokufanelekileyo umgubo ogciniweyo ukuze unciphise ixesha le-inventri. Umgubo akufuneki ugcinwe kangangexesha elingaphezulu kwecebiso lomenzi.
• 3. Kuphephe ukuba neepakethe ezivuliweyo zomgubo kumgangatho wevenkile ukunqanda ukufunxwa nokungcoliseka kokufuma.
• 4. Umgubo we-precondition phambi kokutshiza ngokunikezela nge-preconditioning fluidiza?tion, njengoko ifumaneka kwezinye iisistim ezizenzekelayo, okanye ngokugalela umgubo ongenyulu ngenkqubo yokubuyisela. Ezi ndlela ziya kuqhekeza umgubo ukuba i-agglomeration encinci yenzeke kwiphakheji.
• 5. Ukwandisa ukusebenza kakuhle kokugqithiselwa komgubo kwindawo yedokodo ukunqanda iingxaki ezinxulumene nokurisayikilisha okuninzi komgubo.
• 6. Nciphisa ubungakanani bezinto zokugquma ngomgubo ezigcinwe kumgangatho wevenkile ukuba ubushushu kunye nokufuma

UKHUSELEKO

Iingubo zomgubo ziqulethe iipolymers, ii-agent zokunyanga, ii-pigments, kunye nezihluzi ezifuna iinkqubo ezikhuselekileyo zokuphatha kunye neemeko. Ii-pigments zingaqulatha iintsimbi ezinzima, ezifana nelothe, imekyuri, i-cadmium, kunye nechromium. Ukuphathwa kwezinto eziqulethe izinto ezinjalo kulawulwa yimimiselo ye-OSHA. Ukuphela kokusetyenziswa kunokuthintelwa ngokweMigaqo yeKhomishini yoKhuseleko lweMveliso yoMthengi.

Phantsi kweemeko ezithile, imimiselo ye-OSHA ifuna ukuba umenzi-sicelo axelele abasebenzi ngeengozi ezinxulumene nokuphatha iikhompo? Umfaki-sicelo uyacetyiswa ukuba afumane olu lwazi kumthengisi ngohlobo lwePhepha leDatha loKhuseleko lweMathiriyeli. Iingubo zomgubo kufuneka ziphathwe ngendlela yokunciphisa ukudityaniswa kwesikhumba kunye nokuvezwa kokuphefumla okuhambelana neengcebiso ezithile zePhepha leDatha loKhuseleko. Iimpendulo ezicacileyo zempilo ezibalelwa kulo naluphi na umsebenzi wokugquma umgubo kufuneka zithunyelwe kugqirha ngokukhawuleza.

Ukuvula, ukukhupha, kunye nokuphatha izikhongozeli zomgubo, ezifana neebhokisi kunye neengxowa, zihlala zibonakalisa utyhileko olukhulu lwabasebenzi, kunye neenkqubo eziyilwe kakuhle. Iindlela zobunjineli, izixhobo zokuzikhusela, kunye nococeko lobuqu olulungileyo kufuneka zisetyenziswe ukucutha ukuba sesichengeni. Kumsebenzi wokutshiza owenziwe kakuhle, kufuneka kubekho ukuchanabeka ngokungenankathalo kwabasebenzi eluthulini. Iingubo zePowder, ngenxa yobungakanani bamasuntswana amahle kunye nepesenti enkulu rhoqo ye-TiO, iya kuthabatha umswakama kunye neoli ngokukhawuleza.

Ukuba umgubo ushiywe udibane nolusu ixesha elide, kuthanda ukomisa ulusu. Ukuthintela oku, iiglavu kunye nempahla ecocekileyo kufuneka inxitywe ngabasebenzi. Abasebenzisa imipu ye-electrostatic manual kufuneka babekwe phantsi. Ukuthintela ukuthwala umgubo kude nomsebenzi, abasebenzi kufuneka batshintshe iimpahla ngaphambi kokuba baphume emsebenzini. Ukuba umgubo ufika eluswini, kufuneka uhlanjwe kwangethuba, ubuncinci ekupheleni kosuku. Abasebenzi ababonisa ukusabela kolusu xa bevezwe ngumgubo kufuneka balumke ngakumbi ukuba bahlambe rhoqo. Ukuhlamba i-sfin ngee-solvents eziphilayo yinto engakhuselekanga ekufuneka yalelwe. Generally, ukucoca ngesepha namanzi luqheliselo olufanelekileyo lococeko. Ulwazi olongeziweyo kufuneka lufunyanwe kwiPhepha leDatha loKhuseleko lweMaterial lomthengisi.

Ukugcinwa kwePowder Coating kunye noHambo