Yakatumirwa pa 2018-09-17Dacromet coating process: iyo mbishi inogadzirwa kuita inonyungudika mvura, uye yobva yaputirwa pamusoro peiyo pre-yakagadziriswa workpiece, yakabikwa kare uye yakasimwa kuti iite inorganic film layer.Maitiro ekutanga ndeaya anotevera: workpiece degreasing → derusting (blasting) → dip coating (kana kupfapfaidza) → kuomesa → pre-kubika → sintering → kutonhora → kuongorora → kurongedza.
1. Degreasing: Degreasing organic solvent kana alkaline solution deoiling.Kubva pakuona kwekuchengetedzwa kwezvakatipoteredza, alkaline degreasing inofanira kushandiswa.Mushure meiyo degreased workpiece, iyo yepamusoro inofanirwa kunyoroveswa nemvura.
Iyo workpiece inoiswa mumudziyo wakavharwa, uye mumiriri wekuchenesa anounzwa pakumanikidzwa kukuru uye akapfapfaidzwa pakuchenesa.Sezvo pamusoro peiyo workpiece iri mineral anti-rust mafuta, a compound surfactant ine emulsified dispersion uye yakanaka yekunyungudutsa simba inosarudzwa.
2. Kuputika kwepfuti: Kuitira kudzivirira hydrogen embrittlement uye kusvibiswa kwezvakatipoteredza, ngura haishandiswe pakunhonga, asi kuputika kwepfuti kunoshandiswa.Muchina wesimbi wekupenengura unoshandiswa mumuchina wekupfurwa une dhayamita kubva pa0.1 kusvika 0.6 mm, uye inoputswa nemhepo yakamanikidzwa.Iyo guruva yakabviswa inounganidzwa neakakosha guruva muunganidzi uye yakanyanyisa.Degreasing uye descaling inofanira kunge yakanyatsojeka, kana zvisina kudaro kunamatira uye kushorwa kwekupokana kwejasi kuchaderedzwa.
3. Dip coating: Iyo yakabatwa workpiece inonyudzwa mune pre-yakagadzirwa Dacromet coating solution.Iyo workpiece inowanzonyudzwa yakavharwa kwemaminetsi maviri kusvika matatu pasi pekuzununguka zvishoma uye yobva yaoma.Kana workpiece yakakura, pfapfaidza iyo.Mushure mekuputira dip kana kupfapfaidza, kana paine kusaenzana kana kuvuza kwekuvhara mushure mekuongorora, inogona kuiswa nebrashi yekuputira.
4. Pre-kubika, kuporesa: Iyo yakavharwa workpiece inoiswa pasimbi isina tsvina mesh bhandi, uye workpieces hazvibvumirwi kunamatira kune mumwe nemumwe, kupinda muchoto chekupisa kwemaminitsi 10-30, uye kurapa kwemaminitsi gumi nemashanu kusvika makumi matatu.Iko kusati kwabika, kupora tembiricha uye nguva zvinonyanya kutariswa nehupamhi hwejasi uye saizi yebasa rekushanda uye rakasiyana rekuvhara mvura.Iko kufambisa kumhanya kwesimbi isina tsvina mesh bhandi conveyor inodzorwa.
5. Mushure mekurapa: Kana nzvimbo yefastener yakaoma mushure mekuporesa, nzvimbo yefastener inogona kucheneswa nebrashi yakaoma.
Nguva yekutumira: Jan-13-2022