Powder Coating Posungira Ndi Kusamalira

Kuphimba Powder Kusunga Ndi Kugwiritsa

Ufa, monga zida zilizonse zokutira uyenera kutumizidwa, kulembedwa, ndi kusamaliridwa paulendo wake kuchokera kwa wopanga zokutira mpaka kukagwiritsidwa ntchito. Malingaliro a opanga, njira, ndi zichenjezo ziyenera kutsatiridwa. Ngakhale ufa wosiyanasiyana ukhoza kukhala ndi zofunikira zenizeni, malamulo ena apadziko lonse amagwira ntchito. Ndikofunika kuti ufa ukhale nthawi zonse:

• Kutetezedwa ku kutentha kwakukulu;
• Kutetezedwa ku chinyezi ndi madzi;
• Kutetezedwa ku kuipitsidwa ndi zinthu zakunja, monga ufa, fumbi, dothi, etc.

Izi ndi zofunika kwambiri, ziyenera kufotokozedwa momveka bwino.

Kutentha Kwambiri

Ufa uyenera kukhala ndi kukula kwake kwa tinthu kuti tigwiritse ntchito ndikugwiritsa ntchito. Mafuta ambiri a thermoset?ting amapangidwa kuti asamatenthedwe ndi kutentha podutsa komanso posungidwa. Izi zidzasiyana malinga ndi mitundu ndi mapangidwe, koma zikhoza kuyerekezedwa pa 100-120 ° F (38-49 ° C) kwa nthawi yochepa. Kutentha koopsa kumeneku kukapyola kwa utali uliwonse wa nthawi, kumodzi kapena kusintha konseku kungachitike. Ufa ukhoza kusungunuka, kulongedza, kapena kugwera mumtsuko. Kuchuluka kwa ufa wolemera pawokha (Le., wamtali wamtali wokhala ndi?ers) ukhoza kufulumizitsa kulongedza ndi kufota kwa ufawo mpaka pansi pa chidebecho.

Opanga amalimbikitsa kutentha kwa nthawi yayitali kwa 80°F (27'C) kapena kutsika. Pokhapokha ngati kutentha kwake kwakhala kochuluka kwambiri kwa nthawi yaitali, ufa umene wakhala ndi kusintha koteroko nthawi zambiri ukhoza kuthyoledwa ndikutsitsimutsidwa pambuyo podutsa chipangizo chowonetsera.

Ufa wokhala ndi njira zochiritsira zothamanga kwambiri kapena zotsika pang'ono zimatha kusintha kusintha kwamankhwala chifukwa cha kutentha kwambiri. Ufawu ukhoza kuchitapo kanthu kapena "B siteji." Ngakhale ufa ukhoza kuthyoledwa, sudzatulutsa mawonekedwe ofanana ndi mawonekedwe ake ngati ufa wosawonekera. Adzakhala ndi, ndikusunga mosasinthika, kutuluka kwa malire, mpaka kuuma.

Ufa wopangidwa ndi mankhwala otsekereza kuti asachiritse kutentha kocheperako nthawi zambiri samakhala "B siteji" pa kutentha kosachepera 200 ° F (93 ° C).

Tetezani ku Chinyezi ndi Madzi

Madzi ndi ufa sizisakanikirana pamene cholinga ndi kupopera ngati ufa wouma. Kuwonetsedwa ndi chinyezi chambiri kungapangitse ufawo kuyamwa pamwamba kapena chinyezi chochuluka. Izi zimabweretsa kusagwira bwino, monga kusatulutsa madzi m'thupi kapena kudyetsedwa kwamfuti, zomwe zimatha kuyambitsa kulavulira kwamfuti ndipo pamapeto pake kutsekeka kwa payipi. Kuchuluka kwa chinyezi kumapangitsa kuti filimu yophikira yophikirayo isinthe kapena kuti ichepe, ndipo zikavuta kwambiri, imakhudza mawonekedwe ndi magwiridwe antchito a filimu yophikirayo.

Kuipitsa

Chifukwa kupaka ufa ndi njira youma yokutira, kuipitsidwa ndi fumbi kapena ufa wina sikungachotsedwe ndi kusefa, monga mu utoto wamadzimadzi. Ndikofunikira, chifukwa chake, zotengera zonse zimatsekedwa ndikutetezedwa ku fumbi logaya mbewu, zopopera za aerosol, ndi zina zambiri.

MALANGIZO OWERENGA POWDER COATING

Kukhazikika kosungika kwa zokutira zaufa siziyenera kuyambitsa mavuto pamalo omwe munthu akugwiritsa ntchito, pokhapokha ngati pali njira zingapo zodzitetezera. Zina mwazodzitetezera ndi izi:

• 1. Kuwongolera kutentha, 80°F (27°C) kapena kucheperapo. Kumbukirani kuti ufa umafuna malo ochepa osungira. Mwachitsanzo, malo a semi-tractor?kalaling'ono amatha kukhala 40,000 lbs. (1 8,143kg) wa ufa, womwe ndi wofanana
• 2. Sinthanini bwino ufa wosungidwa kuti muchepetse nthawi yowerengera. Ufa suyenera kusungidwa kwa nthawi yoposa zomwe wopanga apanga.
• 3. Pewani kukhala ndi paketi ya ufa yotseguka pansi pa sitolo kuti musamayamwidwe ndi chinyezi komanso kuipitsidwa.
• 4. Precondition powder musanayambe kupopera mankhwala popereka preconditioning fluidiza?tion, monga ikupezeka pa makina odziwikiratu, kapena powonjezera virgin powder kudzera mu dongosolo lobwezera. Njirazi zidzasokoneza ufa ngati kusakanikirana kwazing'ono kwachitika mu phukusi.
• 5. Kuchulukitsa ufa wotumiza ufa mumsasa kuti mupewe mavuto obwera chifukwa chobwezeretsanso ufa wambiri.
• 6. Chepetsani kuchuluka kwa zinthu zokutira za ufa zomwe zimakhala pansi pa sitolo ngati kutentha ndi chinyezi

SAFETY

Zovala zaufa zimakhala ndi ma polima, machiritso, ma pigment, ndi zodzaza zomwe zimafunikira njira zoyendetsera ntchito ndi machitidwe otetezeka. Nkhumba zimatha kukhala ndi zitsulo zolemera, monga lead, mercury, cadmium, ndi chromium. Kasamalidwe ka zinthu zomwe zili ndi zinthu zotere zimayendetsedwa ndi malamulo a OSHA. Kugwiritsa ntchito kumatha kukhala koletsedwa malinga ndi Malamulo a Consumer Product Safety Commission.

Nthawi zina, malamulo a OSHA amafuna kuti wopemphayo adziwitse antchito za zoopsa zomwe zimadza chifukwa chogwira zinthu zina kapena zokutira za ufa. Wopemphayo akulangizidwa kuti apeze izi kuchokera kwa wogulitsa ngati Mapepala a Chitetezo cha Material. Zopaka zaufa ziyenera kusanjidwa m'njira yochepetsera kukhudza khungu komanso kupuma molingana ndi malingaliro ena a Material Safety Data Sheet. Zotsatira zodziwikiratu za thanzi zomwe zimachitika chifukwa cha ntchito yopaka ufa ziyenera kutumizidwa kwa sing'anga posachedwa.

Kutsegula, kukhetsa, ndi kunyamula zotengera za ufa, monga mabokosi ndi zikwama, nthawi zambiri zimawonetsa kuwonetseredwa kwakukulu kwa ogwira ntchito, ngakhale ndi makina opangidwa bwino. Zochita zauinjiniya, zida zodzitetezera, komanso ukhondo wabwino wamunthu ziyenera kugwiritsidwa ntchito kuchepetsa kuwonetseredwa. Pa ntchito yopopera yopangidwa mwaluso, payenera kukhala kuwonekera mosasamala kwa antchito ku fumbi. Zovala zaufa, chifukwa cha kukula kwake kwa tinthu tating'ono komanso nthawi zambiri kuchuluka kwa TiO, kumayamwa chinyezi ndi mafuta mosavuta.

Ngati ufa watsalira pakhungu kwa nthawi yayitali, umapangitsa kuti khungu liume. Pofuna kupewa izi, ogwira ntchito ayenera kuvala magolovesi ndi zovala zoyera. Ogwiritsa ntchito mfuti zama electrostatic pamanja ayenera kukhazikika. Pofuna kupewa kunyamula ufa kuchoka kuntchito, ogwira ntchito ayenera kusintha zovala asanachoke kuntchito. Ngati ufa ulowa pakhungu, uyenera kutsukidwa nthawi yoyenera, makamaka pakutha kwa tsiku. Ogwira ntchito omwe amawonetsa kukhudzidwa kwa khungu atakhudzidwa ndi ufa ayenera kusamala kwambiri kuti azisamba pafupipafupi. Kutsuka sfin ndi zosungunulira organic ndi mchitidwe wosatetezeka womwe uyenera kuletsedwa. Generally, kuyeretsa ndi sopo ndi madzi ndi njira yoyenera yaukhondo. Zambiri zowonjezera ziyenera kupezedwa kuchokera ku Material Safety Data Sheet.

Powder Coating Posungira Ndi Kusamalira