Galvalume Coil yakapendwa kare, inonziwo Ppgl Coil kana Ppgl Steel Coil, chinhu chakakosha pakuvaka madziro emaketeni, dzimba dzemidziyo, uye kutakurwa kwecheni dzinotonhora. Kusagadzikana kwayo nengura kunokanganisa hupenyu hwebasa rechigadzirwa, mari yekugadzirisa, uye kuchengetedzeka. Munzvimbo dzakaoma dzakadai senzvimbo dzegungwa nenzvimbo dzekusvibiswa kwemaindasitiri, kutsvaga nzira dzekuwedzera kusagadzikana kwePpgl Steel kunetsa zvikuru muindasitiri. Chinyorwa chino chinopa nzira shanu dzinobatsira dzakavakirwa pakushandiswa chaiko kwenyika.
I. Kuvandudza Substrate: Kutanga Kwakanaka Kwekurapwa Kwengura
Kuramba kwesimbi yePpgl Steel kunoenderana ne substrate yayo, iyo aluminized zinc - plated substrate (Galvalume Coil).
1. Kudzora Kupenda: Ppgl Steel Coil yakanaka inoda musanganiswa wakakodzera wearuminiyamu (55%), zinc (43.4%), uye silicon (1.6%). Silicon inobatsira kuumba alloy layer uye inomisa zinc layer kuti isabvaruke. Aluminized zinc coating inofanira kunge iri 120 g/m² (mativi ese). Munzvimbo dzine ngura zvakanyanya dzegungwa, inogona kupfuura 150 g/m² kuti igadzire akasimba ekudzivirira.
2. Sarudza Substrate Yakachena: Substrate yePpgl Steel inofanira kunge isina tsvina yakawanda senge kabhoni nesarufa. Izvi zvinoderedza zvikanganiso zvidiki uye zvinomisa ngura kubva pakutanga. Zviri nani kushandisa substrates dzakaputirwa ne aluminized zinc dzinosangana neASTM A792 standards kuderedza njodzi yekuora.
II. Gadzirai tsime repamusoro: Gadzirisai kunamira kwepurasitiki
Kubatana kwePrepainted Galvalume Steel Coil kunokanganisa kuramba kwayo ngura. Kugadzirisa pamusoro pechinhu kwakakosha zvikuru:
1. Chenesai nematanho matatu: Substrate inofanira kugezwa nealkaline kubvisa mafuta, kugezwa neacid kubvisa ngura, uye kusukurudzwa kuti isanyanya kunyorova. Izvi zvinoita kuti pamusoro payo pave pakachena uye zvinomisa "intercalation corrosion" pakati pe coating ne substrate.
2. Kuvandudza Passivation: Shandisa chromate passivation kana chromium - free passivation (izvo zviri nani kune nharaunda). Izvi zvinoumba firimu repassivation rakafanana paGalvalume Steel Coil substrate. Zvinobatsira kuti coating inamire zviri nani uye zvinovhara zvinhu zvinoparadza.
3. Omesai Zvakanaka: Mushure mekugadzirira, omesai pasi pevhu nekukurumidza. Chengetai hunyoro hwepamusoro husingasviki 0.1% kudzivirira ngura kubva mumakomba.

III. Sarudza Coating Yakakodzera: Vaka Dziviriro Yemachira Akawanda
Kuputira ndiko kudzivirira kukuru kweCoil Ppgl. Pakusarudza sisitimu yekuputira, funga nezvekusapindirana nemamiriro ekunze, kusapindirana nemakemikari, uye kunamira:
1. Sarudza Primer: Epoxy primers yakanaka nekuti inonamira zvakanaka uye inovhara zvinhu zvinoparadza. Kana zvichidikanwa zvakanyanya, shandisa polyurethane primers kuti pendi yacho ive nyore kuchinjika uye inodzivirira munyu.
2. Sarudza Topcoat: Sarudza machira anodzivirira mamiriro ekunze.
– Kune nharaunda dzakajairika: Majasi epolyester anodzivirira kupisa kwakanyanya isarudzo yakanaka. Anodzivirira UV uye haachemberi zvakanaka uye haadhuri zvakanyanya.
– Kune nzvimbo dzakaoma (senge nzvimbo dzemugungwa kana dzemaindasitiri): Majasi ePVDF (polyvinylidene fluoride) ndiwo akanakisa. Anodzivirira mamiriro ekunze uye makemikari uye anogona kugara kwemakore anopfuura makumi maviri.
3. Dzora Ukobvu Hwekuputira: Iyo primer inofanira kunge yakakora 5 - 7μm, iyo topcoat 15 - 20μm. Ukobvu hwese hwekuputira hunofanira kunge huri 25μm kudzivirira matambudziko akaita semaburi emapini.
IV. Tevedzera Kugadzirwa Kwakanaka uye Kuiswa: Dzivisa Kuora Kunobva Pakukanganisa
Kunyangwe Galvalume Coil yakagadzirwa kare yemhando yepamusoro inogona kurasikirwa nekurasika kwayo kana ikagadziriswa zvisiri izvo:
1. Dzora Maitiro Ekuputira: Shandisa roller coating kuti coating ienzane. Chengeta tembiricha yekuputira iri pa230 - 250℃ kwemasekonzi 30 - 60. Izvi zvinodzivirira coating kuti isanyanye kupwanyika.
2. Dzivirirai Panguva Yekuisa:
– Usakwenya pamusoro pePPGL Coil. Gadzirisa makwara nependi yekugadzirisa yakakosha nekukasika.
– Siya majoini ekuwedzera paunenge uchiisa kuti coating isatsemuke nekuda kwekuchinja kwekushisa.
– Munzvimbo dziri kumahombekombe kana munzvimbo dzine hunyoro, shandisai zvisungo zvesimbi isingatsvi kuti musaora kubva pakubata simbi dzakasiyana.
V. Gadzirisa Nguva Dzose: Ita Kuti Coil Igare Kwenguva Refu
Kugadziriswa nguva dzose kunogona kuderedza ngura, kunyanya paGalvalume Steel Coil yekunze:
1. Chenesa Kazhinji: Chenesa coil nemvura kana sipo isina kusimba kanenge kamwe chete kusvika kaviri pagore. Izvi zvinobvisa guruva, munyu, nedzimwe tsvina dzinogona kukonzera ngura.
2. Gadzirisa Kukuvara Nokukurumidza: Kana paine mavanga kana kukuvara kwependi, shandisa pendi yekugadzirisa inofananidza nekukasika kudzivirira zvinhu zvinoparadza kuti zvisasvike pasi pevhu.
3. Ibva pane Zvakatipoteredza: Pamakoiri ari pedyo neasidhi kana maalkali kana pedyo negungwa, shandisa zvidziviriro kana machira ekudzivirira kuderedza kusangana nezvinhu zvinoparadza.