Electrophoretic coatingzvakafanana nedzimwe nzira dzekuputira. Zvikamu zvakaputirwa zvinoda kugadziriswa pamusoro zvisati zvaputirwa. Kurapa kwepamusoro ibasa rakakosha rinofanirwa kuitwa risati rapfekedzwa. Nzira dzakasiyana dzekuputira, zvinhu zvakasiyana uye mamiriro avo epamusoro, saka Iyo inodiwa pamusoro pekurapa maitiro uye nzira hadzina kufanana. Haisi chete maitiro akasiyana ekurapa epamusoro uye mhando yekurapa inokanganisa zvakanyanya kunaka kwekuputira, asiwo mutengo wepamusoro wekurapa une simba rakakura. Naizvozvo, kana tichiita tekinoroji dhizaini, isu tinofanirwa Iyo yekumisikidza nzira, zvinhu uye pamusoro penzvimbo yezvikamu zvakavharwa, uye nzira yekurapa pamusoro uye nzira ine simba rakasimba, yakanaka kurapa maitiro uye yakaderera mutengo unofanirwa kusarudzwa zvakanyanya sezvinobvira. .
Sei electrophoresis ine pretreatment maitiro?
Mune pretreatment process ye electrophoresis, kune kudyidzana kubatirana kwe degreasing, kubvisa ngura, phosphating, kugadzirisa kwepasi uye mamwe maitiro. Zvinogona kutaurwa kuti pretreatment inokosha mu electrophoretic coating, iyo inoenderana nekugadzikana kwe electrophoretic pendi yekugezera mushure me electrophoresis uye kunaka kweiyo firimu yekuputira pamusoro peiyo workpiece.
Kuti uwane kusimba uye kushorwa kwekupokana kweiyo firimu yekuvhara ye electrophoretic workpiece, kurapwa kwephosphating kunoshandiswa sekutanga kwejasi. Phosphating kurapwa (inozivikanwawo se phosphate kemikari kurapwa) ndeye (phosphating firimu) tekinoroji inoshandisa dissociation (equilibrium) maitiro ephosphoric acid kudonhedza insoluble phosphate metal salt pamusoro peakacheneswa (degreased) metal substrates. Basa remufirimu wephosphating nderokuvandudza kusungirirwa uye kusvibiswa kwekudzivirira kwefirimu yekuputira (electrophoretic coating) inoshandiswa pairi.
Nezvekunamatira, makristasi efirimu yakawanikwa phosphide anonyungudika zvishoma musimbi yesimbi, uye kusungirirwa kwemakristasi kwakanaka. Mukuwedzera, nzvimbo yepamusoro inowedzera nekuda kwekusaenzana kwepamusoro kwemakristasi akawanda, uye kusungirirwa kwefirimu yekuputira kunovandudzwa. Zvadaro, nekuvandudzwa kwekunamatira kwefirimu yekuputira, kupindira kwezvinhu zvinogadzira gorosi kunodzivirirwa, uye kurwisana kwehutu kunovandudzwa (kunyanya kuwedzera kwehutu pasi pefirimu yepende inogona kudziviswa).
Iyo yekupfekedza ichaputika uye ngura munguva pfupi pasina phosphating. Mvura nemhepo inopfuura nepafirimu yekuputira inosvika pamusoro pebasa rekushanda kuti iite ngura yakatsvuka uye inoputika firimu repende. Mvura nemhepo inopfuura nemufirimu inonamira inosvika parata rakabatidzwa kuita ngura chena, iyo inopindirana nefirimu rekunamira kuita sipo yesimbi. Nguva shomanana yakakura, kuitira kuti firimu yekuputira iwedzere kuzvikudza. Phosphating firimu ifirimu isinganyungudika inoumbwa pamusoro pesimbi nekuita kwemakemikari. Nekuda kwekunamira kwayo kwakanaka (kwemuviri) uye kugadzikana kwemakemikari, inobatwa seyakasimba anti-rust coating substrate.
Kuti uwane yakanakisa uye yakagadzikana phosphating firimu uye ive nechokwadi chekunamatira kwayo uye kusagadzikana kwekuora, manejimendi e pretreatment akakosha. Panguva imwecheteyo, zvinodikanwa kuve nekunzwisisa kwakanaka kweiyo yekutanga maitiro meshini uye zvinhu zvephosphating kurapwa.
Nguva yekutumira: Jul-08-2022
