pretreatment drum & Heating

Tsanangudzo Pfupi

PRETREATMENT DRUM & HEATING chidimbu chemudziyo unoshandiswa mukugadzira maindasitiri kugadzirira pretreat zvigadzirwa. Inowanzo kuve neinotenderera pretreatment barrel uye yekudziya system. Panguva yekushanda, zvinhu zvakasvibiswa zvinoiswa mubhodhoro rinotenderera-pre-treatment uye rinopisa nekupisa. Izvi zvinobatsira kushandura iyo yemuviri kana makemikari zvimiro zveiyo mbishi, zvichiita kuti zvive nyore kubata panguva dzinotevera dzekugadzira maitiro. Rudzi urwu rwemidziyo inowanzo shandiswa mumakemikari, kugadzira chikafu, mishonga uye mamwe maindasitiri kuvandudza kugadzirwa kwakanaka uye kunaka kwechigadzirwa.

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Pretreatment ndiyo nzira yakakosha yekupisa-dip galvanizing, iyo ine simba guru pamhando yezvigadzirwa zvemagetsi. Pretreatment heat inosanganisira: degreasing, kubvisa ngura, kugeza mvura, plating aid, drying process, nezvimwe.
Parizvino, muindasitiri yekupisa-dip galvanizing indasitiri, iyo kongiri yegranite pickling tank inoshandiswa zvakanyanya. Nekuunzwa kwehunyanzvi hwekupisa-dip galvanizing tekinoroji muEurope neAmerica, PP (polypropylene)/PE (polyethylene) matangi ekunhonga ari kuwedzera kushandiswa mune imwe otomatiki inopisa-dip galvanizing mitsetse yekugadzira.

Zvichienderana nekuoma kwemavara emafuta pane workpiece pamusoro, degreasing inobviswa mune mamwe maitiro.

Tangi rekudzikisa mafuta, tangi yekugezesa mvura uye tangi yekubatsira plating inowanzove yekongiri chimiro, uye mamwe anogadzirwa nezvinhu zvakafanana netangi rekunhonga.

Pretreatment kudziyisa

Shandisa kupisa kwetsvina yeflue gasi kupisa matangi ese ekutanga kurapwa, kusanganisira degreasing,picklinguye yekubatsira plating. Iyo tsvina inopisa system inosanganisira:
1) Kuiswa kweyakasanganiswa kupisa exchanger mu flue;
2) Imwe seti yePFA heat exchanger inoiswa pamativi ese edziva rega rega;
3) Soft water system;
4) Kudzora system.
Pretreatment heat ine zvikamu zvitatu:
① Flue gasi kupisa exchanger
Maererano nehuwandu hwekupisa hunofanira kupiswa, iyo yakasanganiswa flue heat exchanger inogadzirwa uye inogadzirwa, kuitira kuti kupisa kugone kusangana nezvinodiwa zvekupisa. Kana chete kupisa kwemarara kwe flue kusingakwanisi kusangana nekupisa kwekupisa kudiwa kweiyo pre-kurapwa, seti yemhepo inopisa yevira inogona kuwedzerwa kuve nechokwadi cheflue gasi vhoriyamu.
Chiyereso chekupisa chinogadzirwa nesimbi isingadziviriri simbi kana 20 # seamless simbi pombi ine itsva infrared nano yakakwirira-tembiricha inochengetedza anti-corrosion coating. Iko kupisa kunotora simba i140% yekupisa inotorwa neyakajairwa tsvina kupisa heat exchanger.
② PFA inopisa kupisa
③Kuomesa ovheni
Kana chigadzirwa chine mvura yakapinda mubhavhu rezinc, zvinokonzeresa kuti mvura yezinc iputika uye iparadze. Nokudaro, mushure mekubatsira kwekuputira, nzira yekuomesa inofanirawo kugamuchirwa kune zvikamu.
Kazhinji, tembiricha yekuomesa haifanire kudarika 100 ° C uye haifanire kunge yakaderera kupfuura 80 ° C. Zvikasadaro, zvikamu zvinogona kungoiswa mugomba rekuomesa kwenguva yakareba, izvo zvinokonzeresa kunyura kwe zinc chloride mumunyu. firimu rekubatsira kweplating pamusoro pezvikamu.