Usati wapfapfaidza, pamusoro pe mapaipi esimbi ane ductileinofanira kunge yakaoma uye isina ngura, zvidimbu zvakabatana, mafuta, nezvimwe zvinhu zvekunze. Kusiyana nemapaipi eSML, mapaipi esimbi anodzivirira haadi kugadziriswa kwejecha nekuda kwehunhu hwechinhu chacho. Mapaipi esimbi anodzivirira, kuburikidza nemaitiro e-spheroidization anogovera graphite muchimiro chedenderedzwa, ane hunhu hwakanaka hwemakanika, ane simba rekudhonza rinodarika 420 MPa uye kureba kuri pakati pe7% ne10%, kwakanyanya kupfuura mapaipi esimbi akaumbwa. Chimiro ichi chinoita kuti pave nekusagadzikana kwengura, kunyanya mushure mekushandisa zinc coating (>130 g/m²) uye epoxy resin finish, zvichigadzira sisitimu yekudzivirira miviri inobvisa kudiwa kwejecha.
Soketi yepombi yesimbi ine ductile yakafukidzwa ne zinc spray ne asphalt, uye inofanira kupasa chitupa chisina chepfu. Chimiro chekudzivirira chepombi iyi igwara rakarukwa rine kupedzwa kwekupedzisira, seizvi:
- Kuputira zinc: Zvinodiwa zvakafanana ndezve 130g/m² uye 200g/m², ine zinc yakawanda ye99.9%. Kuputira zinc-aluminium alloy kunoita kuti pave nekushanda kwakasimba uye kudzivirira ngura kwakanyanya, nehuremu hwekuputira hunosvika 400g/m².
Cherechedza: Kukobvu kwe zinc coating kunokanganisa mutengo; zinc coating yakakora inowedzera mutengo uye inovandudza dziviriro yengura.
- Kupeta machira: Anonyanya kusanganisira asphalt ne synthetic resin.
Ukobvu hwekufukidza neasphalt hunowanzoita 70µm (pendi dzeasphalt dzinowanzo ratidzwa nekukora kwete nehuremu panzvimbo imwe neimwe).
Mhando dzakajairika dzemachira ekugadzira resin topcoats ndiPU (polyurethane) uye PE (polyethylene).
Pombi yesimbi yakakandwa yeSML, pombi yesimbi yakapfava, pombi yesimbi yakapfava yakagadzirwa nesimende, pombi yesimbi yakapfava yePU, pombi yesimbi yakapfava ine socket, pombi yesimbi yakapfava ine socket
Nguva yekutumira: Gunyana-25-2025
