Pretreatment E-coat Tsarin zanen E-shafi Layin

Cathodic epoxy electro-shafishine ma'auni na juriya na lalata. An yi amfani da shi sosai a cikin masana'antar kera motoci da na kera, suna ba da ingantaccen feshin gishiri, zafi da juriya na cyclic. Koyaya, fasahohin epoxy na cathodic gabaɗaya suna buƙatar rigar saman da za a kiyaye su daga hasken rana. Rubutun nau'in epoxy mai kamshi suna da haɗari musamman ga alli da lalacewa ta abubuwan UV na hasken rana.

Cathodic acrylic electro-shafiyana samuwa a cikin nau'i-nau'i na masu sheki da launuka don haɓaka ƙarfin waje, riƙewar mai sheki, riƙe launi da kariyar lalata. Ana amfani da waɗannan samfuran azaman riga-kafi ɗaya a cikin aikin gona, lawn da lambun, kayan aiki, da masana'antar sanyaya iska.

Cathodic acrylic electrocoatings yawanci ana amfani da su a aikace-aikace inda ake so duka ƙarfin UV da kariya ta lalata akan ferrous substrates (karfe). Ana kuma amfani da acrylics na cathodic a aikace-aikace inda ake son launuka masu haske.

Ana iya raba tsarin electrocoat zuwa sassa huɗu daban-daban:

• Magani

• Tankin E-coat da kayan taimako

Bayan kurkura

• Maganin tanda

A cikin tsarin e-coat na yau da kullun, ana fara tsaftace sassa kuma an riga an riga an gyara su tare da murfin jujjuyawar fosfat don shirya ɓangaren don lantarki. Ana tsoma sassan a cikin wankan fenti inda ake amfani da wutar lantarki kai tsaye tsakanin sassan da na'urar lantarki ta “counter”. Fenti yana jawo hankalin filin lantarki zuwa sashin kuma an ajiye shi a sashin. Ana cire sassan daga wanka, a kurkura don dawo da daskararrun fenti da ba a ajiya ba, sannan a gasa don maganin fenti.

Kafin aikace-aikacen fim ɗin fenti, yawancin saman ƙarfe suna karɓar pretreatment wanda yawanci ya haɗa da shafan juyawa.

Tsarin pretreatment na yau da kullun na e-coat ya ƙunshi matakai masu zuwa:

1) Tsaftacewa (mataki ɗaya ko fiye)

2) Kurkura

3) Sanyaya

4) Rufewar juyawa

5) Kurkura

6) Bayan magani

7) kurkurewar ruwan da ba a so.

Ana iya raba matakan phosphating zuwa nau'i biyu: baƙin ƙarfe phosphate da zinc phosphate. Iron phosphate ya kasance tsarin zaɓi don aikace-aikace inda la'akari da farashin gabaɗaya ya wuce bukatun aiki. Tun da baƙin ƙarfe phosphates sun fi siraran sutura fiye da zinc phosphates kuma kawai sun ƙunshi ion ƙarfe na abin da ake sarrafa su, suna samar da rage juriya na lalata idan aka kwatanta da tsarin zinc phosphate. Koyaya, tare da ƙuntatawa na muhalli suna ƙara matsawa game da karafa masu nauyi, rufin phosphate na ƙarfe tare da cikakken magani na bayan gida na iya ba da madaidaicin madadin yayin da har yanzu saduwa da ƙayyadaddun lalata da ake buƙata. Zinc phosphates sun zama abin da aka fi so a cikin masana'antar karewa ta ƙarfe, musamman tare da amfani da tsarin fenti na lantarki. Dalilin shi ne cewa suna samar da mafi kyawun juriya na lalata da fenti fiye da baƙin ƙarfe phosphates a ƙarƙashin ƙarin yanayi mai buƙata.