Polyvinyl Chloride (PVC) Powder Coatings - Gadzira, Kushandisa, Kugovera
Iri bepa rinokurukura kugadzirwa kwepolyvinyl chloride (PVC) poda coatings kumba nekune dzimwe nyika, inosuma iyo yakakosha formula, tekinoroji yekugadzirira uye indekisi yekuita PVC poda coatings, uye inoita sumo inodiwa kumashandisirwo ayo mu-anti-corrosion uye kushongedzwa kwepombi dzesimbi.
Foreword
Powder coating imhando ye100% yakasimba poda. Izvo zvakasiyana kubva kune general solvent-based coating uye mvura-soluble coating, kwete kunyunguduka kana mvura semhepo yekuparadzira, asi nerubatsiro rwemhepo semhepo yekuparadzira. Kare decade, hurumende dzenyika kuburitsa coatings mafekitari uye mabhizinesi anokonzerwa nekusvibiswa kwezvakatipoteredza kuwedzera kutarisisa, akasimbisa zvirambidzo pakushandiswa kwezvinonyungudutsa. Pakupera kwemakumi masere mukati Europe neUnited States mukugadzira machira, kugadzira, kuvaka kunyorera zvinorambidzwa zvakanyanya kushandiswa kwezvinonyungudutsa uye zvinobuda, dzimwe nzvimbo dzeUnited States zvakare nenzira yemitemo yakashambadzira mutemo wekumisa kushandiswa kwe solvent, zvisungo zvevakawanda se66 zvinyorwa, uye Europe neUnited States vakaisa pamberi "vatatu E" chinangwa:
(1) Kugadziridza Ecology
(2) Kuchengetedza Simba
(3) Kubatsirwa Kwehupfumi
Muchirevo chechinyorwa chino, machira ehupfu akawana kukurumidza kusimudzira nekuda kwehunhu hwawo husina kusvibiswa, kushandiswa kwakanyanya kwezvinhu mbishi, uye akawanda mabhenefiti. Kunyanya kuWestern Europe neNorth America, kukura kwepagore kwehupfu hwekuputira kunosvika 10%. Zvakare, mumakore achangopfuura, China yakaonawo kukura kunoshamisa kwepagore kwe100% yehupfu hwekuputira.
Polyvinyl chloride (PVC) Powder Coatings inonyanya kufarirwa nevashandisi nekuda kwekushongedza kwavo kwakasiyana-siyana pamwe nemamiriro ekunze uye kusagadzikana kwekuora. Parizvino, PVC kupfeka hupfu anoshandiswa zvakanyanya munzvimbo dzakasiyana siyana kusanganisira kudzivirira kwetambo nepombi yesimbi, kemikari corrosion resistance pipe, sewer drainage pombi, pombi dzepetroleum neindasitiri yemakemikari, zviratidzo zvemumugwagwa, mapango ekuvhenekesa, highway guardrail nezvimwe.
Development Process
1.Basic formula ye PVC powder coating
PVC poda coating inogadzirwa PVC resin sechinhu chekutanga chine plasticizer, stabilizer, filler uye zvimwe zvinowedzera. Iyo yakakosha formula inoratidzwa muTafura (White color).
| PVC Resin | Chikamu(%) |
| DOP | 7-10 |
| DOS | 6-8 |
| Heat Stabilizer A | 10-12 |
| Heat Stabilizer B | 8-10 |
| TiO2(B101) | 12-15 |
| CaCo3 | 5-6 |
| Anti-kuchembera Agent | 0.8-1 |
| Pigment Phthalein Bhuruu/BS | Mari Yakafanira |
2.Kugadzirira Technology ye PVC powder coating
Nzira yekugadzirira ye PVC poda kupfeka, maitiro ayo anoratidzwa muFigure.
3.Product Performance Analysis Test Results
Mushure me repekutsvagisa nekusimudzira, kuyedzwa, uye kuenzaniswa nezvinotengeswa kunze kwenyika, kumwe kuita kwe PVC poda coating yakazosvika kana kutopfuura kuita kwezvakatengwa kunze kwenyika zverudzi rumwe chete, ona tafura.
| Kuoma (Shore Hardness A) | 83-84 |
| Kusimba Kwesimba(N/Mm2) | 10.7-11.93 |
| Ultimate Elongation (%) | 95 |
| Kugadzikana Kwekupisa (250C, 15min) | Yakasviba Yero |
| Chaiyo Gravity(g/Cm3) | 1.3 |
| Kukotama Pasi Pakudzika Kwetembiricha (-40 ℃ ±2 ℃) | Zvakapusa |
| Melt Index (Diki Bore, g/10min | 10.44 |
| Kuyerera | 1”38 |
| Oxygen Index Oi(%) | 25.0 |
| Smoke Output(%) | 6.32 |
Kushandiswa kwe PVC Powder Coated Steel Pipe
PVC poda yekuputira firimu ndeye semi-yakaoma thermoplastic state. Kuenzaniswa ne polyethylene, tembiricha yekunyunguduka uye kuparara tembiricha musiyano idiki, saka kana yashandiswa inofanira kunyatsotarisisa kubikira tembiricha uye nguva. Nekuda kwekunamira kwayo kwakashata, isati yanyura, kazhinji inoda kuvezwa nedhizaini yeprimer kuti iwedzere kunama kweiyo.
1.Zvinhu zvakakosha zvekuputira
- PVC poda yekupotera zvigadzirwa zvinosanganisira: zvemukati zvekushongedza zvemukati uye jira risingapinde mvura, matangi emakemikari, pasi, yekuvharisa firimu rekurongedza, hose yebindu uye waya yekuvharisa.
- Nzira dzekugadzirisa dzinotora musanganiswa wakaoma, jekiseni kuumba, extrusion hollow blow molding, calendering, uye fluidized bed dipping.
- Flame retardant (yakawedzera murazvo unodzoreredza)
- Mvura nemakemikari kuramba, zvakanaka kuchembera kuramba.
2.Main kuvaka nzira uye kushandiswa kwehuwandu
PVC poda coating inonyanya kushandiswa musimbi mesh, inotonhora yekuchengetera shedhi, simbi fenicha, simbi pombi uye zvichingodaro. Iyo coating process inonyanya sezvinotevera:
(1) Pre-kurapa: phosphate kurapwa - kubvisa ngura, phosphating.
(2) Primer coating: Dip the primer, mushure mekuoma, ukobvu hwefirimu yekutanga ndeye 5-10μm,
(3) electrostatic spraying kana fluidized bed dipping.
4. preheating tembiricha :230-290 ℃,10min, firimu ukobvu: 500um;
Kana 290 ℃, 5min pasina preheating, firimu ukobvu 200um.
PVC yakavharidzirwa simbi pombi inobatsira mu petrochemical anti-corrosion, inobatsira mumugwagwa mukuru guardrail, inobatsira mudanda, mushure memakore mazhinji emigumisiro yekushandiswa inoratidza kuti PVC kuvhara mvura yekudzivirira, kuchembera kwemuchadenga kwakanaka, kunowanzo kuwanikwa kweanopfuura makore gumi nemashanu, kubvisa dambudziko rependi yebhurashi kazhinji, kuenzanisa kwakakwana kwemutengo wayo wakaderera, unoshandiswa mumakemikari anti-corrosion, inogonawo kushandiswa kweanopfuura makore mashanu, kuti mushandisi agadzirise dambudziko re-anti-corrosion.
Hiya, ndafara chaizvo kuti ndawana ruzivo urwu. Nhasi mablogger anoburitsa nezve makuhwa nemambure uye izvi zvinotsamwisa. Webhusaiti yakanaka ine zvinonakidza zvemukati, ndizvo zvandinoda. Ndatenda nekuchengeta saiti ino pvc poda coating, ndichange ndichiishanyira. Unoita matsamba? Haikwanise kuiwana.
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