{"id":5996,"date":"2023-03-21T01:13:09","date_gmt":"2023-03-21T01:13:09","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5996"},"modified":"2026-08-25T09:31:00","modified_gmt":"2026-08-25T09:31:00","slug":"how-to-solve-the-caking-problem-of-powder-coating","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/how-to-solve-the-caking-problem-of-powder-coating\/","title":{"rendered":"Powder Coating Caking: Causes, Prevention & Storage"},"content":{"rendered":"

Gyors v\u00e1lasz:<\/strong> Powder-coating caking usually reflects a combination of temperature, time, pressure, humidity, particle-size distribution and formulation softening. Storage and handling conditions should be verified before changing the additive package.<\/p>\n

 <\/p>\n

A porbevonatok hajlamosak arra, hogy bizonyos h\u0151m\u00e9rs\u00e9kleten megtapadjanak, ami f\u0151k\u00e9nt a gyanta, a kiegyenl\u00edt\u0151szer \u00e9s a porbevonatban l\u00e9v\u0151 egy\u00e9b anyagok h\u0151 hat\u00e1s\u00e1ra t\u00f6rt\u00e9n\u0151 l\u00e1gyul\u00e1sa miatt k\u00f6vetkezik be.<\/p>\n

A h\u0151re kem\u00e9nyed\u0151 porfest\u00e9kek gyant\u00e1i, mint f\u0151 filmk\u00e9pz\u0151 anyagok, alacsony molekulat\u00f6meg\u0171 szerves polimerek.<\/p>\n

 <\/p>\n

Ezek a gyant\u00e1k fizikai tulajdons\u00e1gokkal rendelkeznek, alacsonyabb h\u0151m\u00e9rs\u00e9kleten kem\u00e9ny \u00e9s t\u00f6r\u00e9keny \u00fcveg\u00e1llapot\u00faak, amikor a h\u0151m\u00e9rs\u00e9klet bizonyos fokig emelkedik, a gyanta elkezd bizonyos rugalmass\u00e1gba fordulni, \u00e9s tapad\u00e1si \u00e1llapotot hoz l\u00e9tre, ezen h\u0151m\u00e9rs\u00e9klet alatt a gyanta visszat\u00e9r a nem tapad\u00f3 \u00fcveg\u00e1llapotba, a gyanta \u00fcveg\u00e1llapota \u00e9s a k\u00f6lcs\u00f6n\u00f6s \u00e1talakul\u00e1si h\u0151m\u00e9rs\u00e9klet viszkoelasztikus \u00e1llapota a gyanta \u00fcveg\u00e1tmeneti h\u0151m\u00e9rs\u00e9klet\u00e9nek nevezik.<\/p>\n

 <\/p>\n

A k\u00fcl\u00f6nb\u00f6z\u0151 gyant\u00e1k \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete elt\u00e9r\u0151, az epoxigyanta \u00e9s a poli\u00e9sztergyanta \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete k\u00f6r\u00fclbel\u00fcl 50 Celsius-fok, a \u200d-foly\u00e9kony szintez\u0151anyag \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete nulla Celsius-fok alatt van.<\/p>\n

 <\/p>\n

Min\u00e9l nagyobb mennyis\u00e9g\u0171 alacsony \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u0171 anyagot adnak a porbevonat formul\u00e1j\u00e1hoz, ann\u00e1l alacsonyabb a rendszer \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete. A porrendszer \u00fcvegesed\u00e9si \u00e1tmeneti h\u0151m\u00e9rs\u00e9klete a gy\u00e1rt\u00e1skor k\u00f6r\u00fclbel\u00fcl 40 Celsius fokon helyezkedik el, \u00e9s ezt a h\u0151m\u00e9rs\u00e9kletet a porbevonat agglomer\u00e1ci\u00f3j\u00e1nak biztons\u00e1gos h\u0151m\u00e9rs\u00e9kletek\u00e9nt hat\u00e1rozz\u00e1k meg. \u200d<\/p>\n

A h\u0151m\u00e9rs\u00e9klet emelked\u00e9se megk\u00f6nny\u00edti a porbevonat term\u00e9kek agglomer\u00e1l\u00f3d\u00e1s\u00e1t, hogyan akad\u00e1lyozzuk meg teh\u00e1t a porbevonat agglomer\u00e1l\u00f3d\u00e1s\u00e1t a munk\u00e1nk sor\u00e1n?<\/p>\n

El\u0151sz\u00f6r is, l\u00e9tre kell hoznunk egy olyan koncepci\u00f3t, hogy<\/p>\n

 <\/p>\n

A porbevonatok egy bizonyos h\u0151m\u00e9rs\u00e9kleten val\u00f3 megtapad\u00e1sa term\u00e9szetes t\u00f6rv\u00e9nyszer\u0171s\u00e9g. A porbevonatok megk\u00f6t\u00e9s\u00e9nek megakad\u00e1lyoz\u00e1sa \u00e9rdek\u00e9ben a porbevonatok gy\u00e1rt\u00e1s\u00e1nak teljes folyamat\u00e1ban, p\u00e9ld\u00e1ul az \u0151rl\u00e9s, a csomagol\u00e1s, a t\u00e1rol\u00e1s \u00e9s a sz\u00e1ll\u00edt\u00e1s sor\u00e1n a porbevonat term\u00e9kek \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete alatt van. \u200d<\/p>\n

E n\u00e9zet alapj\u00e1n a k\u00f6vetkez\u0151 megold\u00e1sok \u00e1llnak rendelkez\u00e9sre.<\/p>\n

 <\/p>\n

1) A poli\u00e9sztergyanta gy\u00e1rt\u00e1sa sor\u00e1n v\u00e1lasszon n\u00e9h\u00e1ny alkoholt vagy savakat, amelyek n\u00f6velhetik az \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9kletet, vagy cs\u00f6kkentse az alkoholok mennyis\u00e9g\u00e9t, amelyek cs\u00f6kkenthetik a gyanta \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u00e9t a poli\u00e9sztergyanta \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u00e9nek n\u00f6vel\u00e9se \u00e9rdek\u00e9ben.<\/p>\n

(2) Cs\u00f6kkentse az alacsony \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u0171 polimerek mennyis\u00e9g\u00e9t a porbevonatok recept\u00far\u00e1j\u00e1nak kialak\u00edt\u00e1s\u00e1ban, p\u00e9ld\u00e1ul a kiegyenl\u00edt\u0151szer \u00e9s a k\u00f6nny\u00edt\u0151szer, annak biztos\u00edt\u00e1sa \u00e9rdek\u00e9ben, hogy a porbevon\u00f3 rendszer \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete ne cs\u00f6kkenjen.<\/p>\n

(3) A gy\u00e1rt\u00e1s sor\u00e1n az ac\u00e9lszalagr\u00f3l let\u00f6rt darabokat kell\u0151en le kell h\u0171teni, miel\u0151tt bel\u00e9pn\u00e9nek az \u0151rl\u00e9si folyamatba, \u00e9s az adagol\u00e1si sebess\u00e9get cs\u00f6kkenteni kell, a bejuttatott leveg\u0151 mennyis\u00e9g\u00e9t n\u00f6velni kell, \u00e9s a besz\u00edvott leveg\u0151t hideg leveg\u0151 kondicion\u00e1l\u00f3val kell felszerelni az \u0151rl\u00e9si h\u0151m\u00e9rs\u00e9klet szab\u00e1lyoz\u00e1s\u00e1ra. Ha azonban az \u0151rl\u00e9s el\u0151tt a z\u00fazott anyagdarabok leh\u0171l\u00e9se, az ut\u00f3bbi eszk\u00f6z\u00f6k nem j\u00e1tszanak j\u00f3 szerepet, fontolja meg a t\u00f6r\u00f6tt t\u00f6rmel\u00e9kanyag k\u00e9nyszer\u0171 h\u0171t\u00e9s\u00e9nek m\u00f3dszer\u00e9t az alacsony h\u0151m\u00e9rs\u00e9klet\u0171 kezel\u00e9shez, amely hat\u00e9konyabb, mint a l\u00e9gkondicion\u00e1l\u00f3 hozz\u00e1ad\u00e1sa. \u200d<\/p>\n

J\u00f6n a ny\u00e1r, \u00e9s a porfest\u00e9kek haszn\u00e1lat k\u00f6zben gyakran pork\u00e9pz\u0151dm\u00e9nyeket, s\u0151t csom\u00f3kat is tartalmaznak. Ennek oka a magas k\u00f6rnyezeti h\u0151m\u00e9rs\u00e9klet \u00e9s p\u00e1ratartalom a gy\u00e1rt\u00e1s, t\u00e1rol\u00e1s \u00e9s sz\u00e1ll\u00edt\u00e1s sor\u00e1n, valamint a porbevonatok \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete t\u00f6bb mint 40 fok. Annak \u00e9rdek\u00e9ben, hogy a porbevonat ne csom\u00f3sodjon \u00e9s ne agglomer\u00e1l\u00f3djon az alkalmaz\u00e1si folyamat sor\u00e1n, a k\u00f6vetkez\u0151 szempontokat kell figyelembe venni.<\/p>\n

1. A gyanta kiv\u00e1laszt\u00e1sakor haszn\u00e1ljon magas \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u0171 (TG) gyant\u00e1t. A hagyom\u00e1nyos epoxigyanta \u00e9s poli\u00e9sztergyanta \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete k\u00f6r\u00fclbel\u00fcl 50 \u2103, ami megfelel az \u00e1ltal\u00e1nos ig\u00e9nynek. Ha a t\u00e1rol\u00e1si k\u00f6vetelm\u00e9nyek magasak, a szintetikus gyanta cs\u00f6kkentheti az alkoholok haszn\u00e1lat\u00e1t, amelyek cs\u00f6kkentik a gyanta \u00fcvegesed\u00e9si \u00e1tmeneti h\u0151m\u00e9rs\u00e9klet\u00e9t, a rendelkez\u00e9sre \u00e1ll\u00f3 alliciklikus amin gy\u00f3gy\u00edt\u00f3 epoxi gy\u00f3gy\u00edt\u00e1sa.<\/p>\n

2. A porbevonat k\u00e9sz\u00edtm\u00e9ny tervez\u00e9se, hogy cs\u00f6kkents\u00e9k az alacsony \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u0171 polimer, mint p\u00e9ld\u00e1ul a kiegyenl\u00edt\u0151szer, \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet k\u00f6r\u00fclbel\u00fcl 30 \u2103, akkor adjunk hozz\u00e1 egy kicsit kevesebb. A l\u00e1gy\u00edt\u00f3 hozz\u00e1ad\u00e1sa cs\u00f6kkenti a gyanta merev csoportj\u00e1t \u00e9s cs\u00f6kkenti a gyanta TG-j\u00e9t, \u00e9s a t\u00falzott TGIC hozz\u00e1ad\u00e1sa szint\u00e9n cs\u00f6kkenti a gyanta TG-j\u00e9t.<\/p>\n

3. A seg\u00e9danyagok k\u00f6z\u00e9 tartozik a sz\u00e1raz porfoly\u00f3s\u00edt\u00f3 szer \u00e9s a tov\u00e1bbi csom\u00f3sod\u00e1sg\u00e1tl\u00f3 szer, a feh\u00e9r korom. A sz\u00e1raz por foly\u00f3s\u00edt\u00f3szer f\u0151 \u00f6sszetev\u0151je n\u00e9mi viaszpor szerves anyag a tapad\u00e1sg\u00e1tl\u00e1shoz. A csom\u00f3sod\u00e1sg\u00e1tl\u00f3 szer f\u0151k\u00e9nt a szervetlen anyagok szilik\u00e1t oszt\u00e1ly\u00e1ba tartozik, \u00e9s a lapot a szita haszn\u00e1lat\u00e1val egy\u00fctt z\u00fazz\u00e1k, szerepet j\u00e1tszhat a por tapad\u00e1s\u00e1nak megakad\u00e1lyoz\u00e1s\u00e1ban. A szil\u00edcium-dioxid hozz\u00e1ad\u00e1sa f\u0151k\u00e9nt f\u00fcst\u00f6lt, k\u00f6nny\u0171 fajs\u00faly\u00fa, k\u00f6nnyen felsz\u00edvja a nedvess\u00e9get. Ez\u00e9rt, amikor j\u00f3l eloszlatja, ker\u00fclje a nedvess\u00e9get, valamint a s\u00f6t\u00e9t sz\u00edn nem lesz feh\u00e9r foltok.<\/p>\n

4. A gy\u00e1rt\u00e1si folyamat els\u0151sorban az extrud\u00e1l\u00e1st \u00e9s a k\u00e9t l\u00e1ncszem \u0151rl\u00e9s\u00e9t szab\u00e1lyozza. Extrud\u00e1l\u00e1skor a hossz\u00fa p\u00e1lya \u00e9s a ventil\u00e1tor fizikai h\u0171t\u00e9se hat\u00e9konyan cs\u00f6kkentheti a pelyhek h\u0151m\u00e9rs\u00e9klet\u00e9t, \u00e9s amikor a pelyhek leh\u0171lnek, akkor az \u0151rl\u00e9s. A por \u0151rl\u00e9s\u00e9n\u00e9l az adagol\u00e1si sebess\u00e9g cs\u00f6kkenthet\u0151, \u00e9s az induk\u00e1lt leveg\u0151 mennyis\u00e9ge megfelel\u0151en n\u00f6velhet\u0151, \u00e9s sz\u00fcks\u00e9g eset\u00e9n h\u0171t\u0151berendez\u00e9s adhat\u00f3 a leveg\u0151 bemenet\u00e9hez a cs\u0151vezet\u00e9k h\u0151m\u00e9rs\u00e9klet\u00e9nek cs\u00f6kkent\u00e9se \u00e9rdek\u00e9ben. A por \u0151rl\u00e9se, csomagol\u00e1s el\u0151tt szobah\u0151m\u00e9rs\u00e9klet al\u00e1 kell h\u0171teni. N\u00e9h\u00e1ny por \u00fczem lesz egy doboz por k\u00e9t bels\u0151 zs\u00e1kokkal elv\u00e1lasztott csomagol\u00e1ssal, hanem a por felhalmoz\u00f3d\u00e1s\u00e1nak megakad\u00e1lyoz\u00e1sa \u00e9rdek\u00e9ben is, bizonyos m\u00e9rt\u00e9kig a por csom\u00f3sod\u00e1s\u00e1nak megakad\u00e1lyoz\u00e1sa \u00e9rdek\u00e9ben.<\/p>\n

5. A port f\u00e9ny\u00e1ll\u00f3, sz\u00e1raz m\u0171helyben kell t\u00e1rolni, n\u00e9h\u00e1ny magas f\u00e9ny\u0171 \u00e9s lebeg\u0151 vir\u00e1got k\u00f6nnyen \u00f6ssze\u00e1llt term\u00e9keket l\u00e9gkondicion\u00e1lt rakt\u00e1rakban kell t\u00e1rolni, vagy a term\u00e9kszigetel\u00e9s k\u00f6r\u00e9 egy r\u00e9teg alum\u00edniumf\u00f3li\u00e1t kell csomagolni. A sz\u00e1ll\u00edt\u00e1shoz l\u00e9gkondicion\u00e1lt j\u00e1rm\u0171veket vagy \u00e1rny\u00e9kol\u00f3 ruh\u00e1val bor\u00edtott teheraut\u00f3kat, nem pedig dobozos teheraut\u00f3kat kell haszn\u00e1lni, \u00e9s ker\u00fclni kell a neh\u00e9z t\u00e1rgyak felhalmoz\u00f3d\u00e1s\u00e1t.<\/p>\n

K\u00f6vetkeztet\u00e9s: por nyersanyagok tal\u00e1lkoznak magas h\u0151m\u00e9rs\u00e9kleten k\u00f6nnyen csom\u00f3sodik egy term\u00e9szetes folyamat, nem felt\u00e9tlen\u00fcl egy mutat\u00f3ja az \u00e9rt\u00e9kel\u00e9s a nyersanyagok j\u00f3 vagy rossz. Amellett, hogy a magas h\u0151m\u00e9rs\u00e9klet\u0171 csom\u00f3sod\u00e1s elleni, t\u0171zmegel\u0151z\u00e9s \u00e9s katasztr\u00f3fav\u00e9delem fontos, hasonl\u00f3an a m\u0171hely, hogy hagyja abba a doh\u00e1nyz\u00e1st, tilos elektromos aut\u00f3 t\u00f6lt\u00e9s, berendez\u00e9sek vezet\u00e9k kit\u00e9ve, stb., kis gondatlans\u00e1g okozta nagy probl\u00e9m\u00e1kat.<\/p>\n

A porm\u00e1zzal val\u00f3 kezel\u00e9s m\u00f3dja.
\n1. A poli\u00e9sztergyanta gy\u00e1rt\u00e1sa sor\u00e1n v\u00e1lasszon olyan alkoholt vagy savat, amely jav\u00edthatja az \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9kletet, vagy cs\u00f6kkentheti az alkohol mennyis\u00e9g\u00e9t, amely cs\u00f6kkentheti a gyanta \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u00e9t a poli\u00e9sztergyanta \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u00e9nek jav\u00edt\u00e1sa \u00e9rdek\u00e9ben.
\n2. A porbevonat-formul\u00e1k tervez\u00e9sekor cs\u00f6kkentse az alacsony \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klet\u0171 polimerek, p\u00e9ld\u00e1ul a kiegyenl\u00edt\u0151szerek \u00e9s a hossz\u00fa fel\u00fclet\u0171 szerek mennyis\u00e9g\u00e9t, hogy a bevonatrendszer \u00fcvegesed\u00e9si h\u0151m\u00e9rs\u00e9klete ne cs\u00f6kkenjen.
\n3. A gy\u00e1rt\u00e1s szempontj\u00e1b\u00f3l a t\u00f6r\u00f6tt darabokat kell\u0151en le kell h\u0171teni, miel\u0151tt bel\u00e9pn\u00e9nek az \u0151rl\u00e9si folyamatba, \u00e9s az \u0151rl\u00e9si sebess\u00e9get cs\u00f6kkenteni kell, a leveg\u0151 mennyis\u00e9g\u00e9t pedig n\u00f6velni kell az \u0151rl\u00e9si h\u0151m\u00e9rs\u00e9klet szab\u00e1lyoz\u00e1s\u00e1hoz.<\/p>\n

L\u00e9pjen kapcsolatba vel\u00fcnk most!<\/b><\/strong><\/h2>\n

Ha sz\u00fcks\u00e9ge van az UV monomerek COA, MSDS vagy TDS adataira, k\u00e9rj\u00fck, t\u00f6ltse ki el\u00e9rhet\u0151s\u00e9g\u00e9t az al\u00e1bbi \u0171rlapon, \u00e1ltal\u00e1ban 24 \u00f3r\u00e1n bel\u00fcl felvessz\u00fck \u00d6nnel a kapcsolatot. \u00d6n is k\u00fcldhet nekem e-mailt info@longchangchemical.com<\/a><\/span> munkaid\u0151ben ( 8:30-18:00 UTC+8 H.-Szombat ) vagy haszn\u00e1lja a weboldal \u00e9l\u0151 chatj\u00e9t, hogy azonnali v\u00e1laszt kapjon.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"

Powder coatings have the tendency to caking at a certain temperature, which is mainly due to the softening of the resin, leveling agent and other materials in the powder coating<\/p>","protected":false},"author":1,"featured_media":5998,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[143],"tags":[],"class_list":["post-5996","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uv-light-curing-series"],"yoast_head":"\nPowder Coating Caking: Causes, Prevention & Storage<\/title>\n<meta name=\"description\" content=\"Prevent powder-coating caking by controlling storage temperature, humidity, particle size, resin softening, packaging, handling and reclaim conditions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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