Galvanized Welded Pipe
Kuti uvandudze kushorwa kwepombi dzesimbi, mapaipi ese esimbi anoiswa galvanized.Mapaipi esimbi ane galvanized akakamurwa kuva marudzi maviri: hot-dip galvanizing uye electro-galvanizing.Iyo inopisa-dip galvanizing layer yakakora, mutengo we electro-galvanizing wakaderera, uye kumusoro hakuna kunyatso kutsetseka.
Oxygen-inofuridza welded pombi: Inoshandiswa sesimbi inogadzira-oxygen-inofuridza pombi, kazhinji diki-dhayamita yakakandwa mapaipi esimbi, ane mataurirwo masere kubva pa3/8 kusvika 2 inches.Yakagadzirwa ne08, 10, 15, 20 kana 195-Q235 simbi tambo, kuitira kudzivirira ngura, zvinodikanwa kuita aluminizing kurapwa.
Dzimba zhinji dzekare dzinoshandisa mapaipi ane marara.Mapombi esimbi anoshandiswa gasi nekudziisa ariwo mapaipi ane galvanized.Mapaipi ane galvanized anoshandiswa sepombi dzemvura.Mushure memakore mashomanana ekushandiswa, tsvina yakawanda uye tsvina inogadzirwa mumapombi, uye mvura yero inoyerera kunze haingosvibisi tsvina yehutsanana., Uye yakasanganiswa nemabhakitiriya anobereka pamadziro emukati asina kuenzana, ngura inokonzera yakawandisa heavy metal content mumvura, izvo zvinoisa pangozi hutano hwevanhu.Mumakore ekuma1960 nema1970, nyika dzakasimukira pasi rose dzakatanga kugadzira mhando itsva dzepombi uye zvishoma nezvishoma dzakarambidza mapaipi emarara.Mapazi nemakomisheni mana anosanganisira bazi rezvekuvaka reChina akapawo gwaro rinojekesa kuti mapombi akavharirwa kubva muna 2000 zvichienda mberi.Mapombi ane galvanized haawanzo shandiswa papombi dzemvura inotonhora munharaunda dzichangobva kuvakwa mushure megore ra2000, uye mapaipi ane marita anoshandiswa papombi dzemvura inopisa mune dzimwe nharaunda.
Nezita madziro ukobvu mm 2.0 2.5 2.8 3.2 3.5 3.8 4.0 4.5
Mapaipi esimbi ane galvanized akakamurwa kuita mapaipi anotonhora ane galvanized uye anopisa-dip galvanized pombi.Iyo yekutanga yakarambidzwa, uye iyo yekupedzisira yakasimudzirwa nehurumende kuti ishandiswe kwenguva pfupi.
Hot-dip galvanized pipe
Iyo inopisa-inonyura yakashongedzwa pombi ndeyekuita kuti simbi yakanyungudutswa uye iron matrix iite kuti ibudise alloy layer, kuitira kuti matrix nejasi zvibatane.Kupisa-dip galvanizing ndiko kutora pombi yesimbi kutanga.Kuti ubvise iron oxide pamusoro pepombi yesimbi, mushure mekunhonga, inocheneswa mutangi yeammonium chloride kana zinc chloride aqueous solution kana yakasanganiswa aqueous solution yeammonium chloride uye zinc chloride, yozotumirwa kuIn. iyo inopisa dip plating tank.Kupisa-dip galvanizing kune zvakanakira kupfeka yunifomu, kunamatira kwakasimba uye hupenyu hurefu hwebasa.
Pombi inotonhora
Cold galvanizing is electro-galvanizing, uye huwandu hwegalvanizing idiki kwazvo, chete 10-50g/m2, uye kushora kwayo kwakaipisisa kupfuura iyo inopisa-dip galvanized pombi.Mazhinji evagadziri vepombi vakagarwa havashandise electro-galvanized (inotonhora plating) kuitira kuve nechokwadi chemhando.Iwo chete mabhizinesi madiki ane zvidiki uye zvechinyakare michina anoshandisa electro-galvanization, uye hongu mitengo yavo yakachipa.Bazi rezvekuvaka razivisa zviri pamutemo kuti mapombi anotonhora ane michina yechinyakare anofanirwa kubviswa, uye mapombi anotonhora haasi kuzobvumidzwa kushandiswa sepombi dzemvura negasi mune ramangwana.
Hot-dip galvanized simbi pombi: Iyo simbi pombi matrix inosangana nekuoma kwemuviri uye kemikari kuita neyakanyungudutswa yeplating mhinduro kuti igadzire inodzivirira corrosion zinc-iron alloy layer ine compact chimiro.Iyo alloy layer inosanganiswa neyakachena zinc layer uye simbi pombi matrix.Nokudaro, kurwisana kwayo nekuora kwakasimba.
Cold galvanized steel pipe:Iyo zinc layer ndeye electroplated layer, uye zinc layer uye simbi pombi substrate zvakaturikidzana zvakazvimiririra.Iyo zinc layer yakatetepa, uye zinc layer inongoomerera kune simbi pombi substrate uye iri nyore kudonha.Naizvozvo, kushorwa kwaro kwakashata.Mudzimba dzichangovakwa, zvinorambidzwa kushandisa pombi dzesimbi dzinotonhora sepombi dzinopa mvura.
Iyo nzira yekugadzira yesimbi isina tsvina ine anotevera matanho ekugadzira:
a.Round simbi kugadzirira;b.Kupisa;c.Kuboorwa kunopisa;d.Cheka musoro;e.Pickling;f.Kugaya;g.Lubrication;h.Cold rolling processing;i.Degreasing;j.Solution kupisa kurapwa;k.Straightening;l.Cheka chubhu;m.Pickling;n.Kuongororwa kwechigadzirwa.
Ingopa iyo yakajairika maitiro, uye iyo yakawanda yakadzama ndeyezvakavanzika zvemugadziri wega wega
1. Mucherechedzo uye kuumbwa kwemakemikari
Giredhi uye kemikari yesimbi yepombi dzesimbi dzinofanirwa kuenderana negiredhi uye kemikari yesimbi yemapombi matema anotsanangurwa muGB 3092.
2. Nzira yekugadzira
Nzira yekugadzira pombi yakasviba (furnace welding kana electric welding) inosarudzwa nemuiti.Kupisa-dip galvanizing inoshandiswa kugadzira galvanizing.
3. Thread uye pombi majoini
3.1 Papombi dzesimbi dzine galvanized dzakaunzwa neshinda, shinda dzinofanirwa kugadzirwa mushure mekurudziro.Iyo tambo inofanirwa kuenderana neYB 822 mirau.
3.2 Majoini epombi yesimbi anofanirwa kuenderana neYB 238;majoini epombi yesimbi anogadzika anofanira kuenderana neYB 230.
4. Mechanical properties Mamichanicha epombi dzesimbi asati aita galvanizing anofanirwa kusangana nezvinodiwa zveGB 3092.
5. Kufanana kwechigadziko chegorofu Pombi yesimbi yegorofu inofanira kuongororwa kuenzana kwechigadziko chemarara.Sampu yepombi yesimbi haifanire kutsvuka (copper-plated color) mushure mekunyudzwa mumhangura sulfate mhinduro ye5 nguva dzakateedzana.
6. Cold bend test Iyo galvanized simbi pombi ine dhayamita yezita isingapfuuri 50mm inofanira kuiswa kune inotonhora bend test.Kona yekubhenda i90 °, uye radius yekukotama ndiyo kasere yedhayamita yekunze.Iko hakuna yekuzadza panguva yekuyedzwa, uye weld yemuenzaniso inofanira kuiswa kunze kana kumusoro kwenzvimbo yekukotama.Mushure mekuedzwa, hapafanirwe kuve nekutsemuka uye peeling ye zinc layer pane sampuli.
7. Kuedzwa kwemvura yemvura Kuedzwa kwemvura kunofanira kuitwa mu clarinet.Eddy ikozvino kuona kukanganisa kunogona kushandiswawo panzvimbo yemvura yekumanikidza bvunzo.Kudzvanywa kwekuyedza kana saizi yekuenzanisa sampuli yeeddy yazvino bvunzo inosangana nezvinodiwa zveGB 3092.
