Ngatitange nechokwadi:
Austenitic Stainless simbi mapaipi anowanzoshandiswa munzvimbo dzakasiyana-siyana dzinoparadza. Zvisinei, kana iwe ukachenjerera, uchaona kuti mumagwaro ekugadzira emamwe mayuniti, chero bedzi DN≤40, marudzi ose ezvigadzirwa anogamuchirwa. Mune magwaro ekugadzira emamwe mayuniti, mapaipi esimbi isina tsvina, zvisinei kuti idiki sei caliber, anoshandisawo butt-welded pombi fittings panzvimbo yechubhu fittings.
Sezvo chirevo ichi chichienda: kuitira kuve nechokwadi chewelding yemhando yediki-caliber pombi uye kudzivirira kupinza kupinza panguva yakakura ikozvino welding, socket yekubatanidza inowanzoshandiswa pane butt welding yekubatanidza. Saka, nei mamwe mayuniti esimbi isina simbi madiki mapombi asina kubereka intubation zvidimbu? Izvi zvinosanganisira dambudziko: mukaha wecorrosion.
Ngatitaurei kuti chii chinonzi crevice corrosion?
Kana paine gaka (kazhinji 0.025-0.1mm) pamusoro pezvikamu zvesimbi nekuda kwemitumbi yekune dzimwe nyika kana zvikonzero zvemaitiro, zvakaoma kutamisa svikiro rinopisa mugomba, rinotungamira kune simbi corrosion, inonzi gap corrosion. Crevice corrosion inowanzova iyo yekukurudzira kumwe kukora (senge pitting corrosion, stress corrosion), saka chirongwa chinovavarira kudzivirira kuitika kwecrevice corrosion. Kuvapo kwekutsemuka kunofanirwa kudzivirirwa mukugadzirwa kwepombi chimiro chepakati chinowanzoita ngura.
Simbi isina tsvina 304 flange
Imhaka yekuti pane gaka mukubatanidza socket, saka mamwe mayuniti kuitira kudzivirira gap corrosion, nekuda kwekuvapo kwekuora kwepombi dzesimbi isina tsvina, pombi diki caliber inowanzo shandisa butt welding yekubatanidza, welding process control kuti ive nechokwadi chemhando, kudzivirira. kushandisa intubation.
304 isimbi yepasirese isina tsvina, inoshandiswa zvakanyanya mukugadzirwa kwemidziyo uye zvikamu zvinoda kuita kwakanaka kuzere (corrosion resistance uye formability).
304 Stainless simbi imhando yesimbi isina tsvina inogadzirwa zvinoenderana neASTM zviyero muUnited States. 304 yakaenzana neChina 0Cr19Ni9 (0Cr18Ni9) simbi isina tsvina. 304 ine 19% chromium uye 9% nickel.
304 isimbi inoshandiswa zvakanyanya, isina kupisa inodzivirira kupisa. Inoshandiswa mumidziyo yekugadzira chikafu, xitong makemikari emidziyo, simba renyukireya, nezvimwe.
304 Stainless simbi butt welding flangendiyo chromium inoshandiswa zvakanyanya - nickel simbi isina tsvina, ine yakanaka corrosion resistance, kupisa kupisa, kuderera kwekushisa simba uye mechanical properties. Corrosion resistance mumhepo, kana iri mhepo yeindasitiri kana nzvimbo yakasvibiswa zvakanyanya, inoda kucheneswa nenguva kuti isaora. Inokodzera kugadzira chikafu, kuchengetedza uye kutakura. Iyo ine yakanaka machinability uye weldability. Plate heat exchanger, mabhero, zvinhu zvemumba, zvekuvakisa, makemikari, indasitiri yechikafu, nezvimwe.