Mune yemazuva ano yekugadzira musimboti we ductile iron manhole anovhara, tinogona kugadzira ductile iron kuburikidza nesimbi yakakandwa nesimbi yakaumbwa, iyo inoshandiswa zvakanyanya muindasitiri yekugadzira michina nhasi.Kutaura zvazviri, musimboti we ductile iron ndeyekuwana graphite ine chimiro chakafanana nebhora kuburikidza nekuita spheroidization, iyo inobudirira inovandudza kushanda kwesimbi yakakandwa, kunyanya iyo plastiki uye kuoma kwayo, zvichiita kuti pave nemhando yepamusoro kupfuura kabhoni simbi.Nekudaro, kuti uderedze mitengo, ductile iron manhole mavhavha anowanzo kuumbwa uchishandisa cast uye forged simbi.
Ductile iron chinhu chinoputika.Chekutanga, simbi yakakandwa inoreva kabhoni inodarika 2.1% (ine kabhoni ye3.50-3.90% uye metallographic chimiro cheferrite+pearlite).Kana iyo kabhoni yemukati yakakwira, kuoma kwayo kuchave kwakakwira.Chechipiri, spheroidizing iyo ductile iron inoreva kuti saizi yesimbi zvidimbu inodzikira, izvo zvichavandudzawo kusimba uye kuoma kwezvinhu.Saka kazhinji kutaura, kuoma kwe ductile iron kwakakwira zvakanyanya (zvechokwadi yakakwirira kupfuura iyo yesimbiwo zvayo).
Chekutanga, mota dzinorema dzinowanzo shandiswa mumigwagwa, saka ductile iron manhole mavhavha anowanzo kusarudzwa, ayo ane simba rekutakura rinosvika matani makumi mana;Mamwe mavhavha emugodhi wemugodhi anogonawo kuwana simba rekutakura rinosvika matani makumi maviri nemashanu, izvo zvakachipa pane ductile iron.Zvisinei, ductile iron manhole manhole anovhara haana kuchengeteka.
Chechipiri, kana zvichienzaniswa nemavhavha emugodhi wemugodhi, mavhavha esimbi ane ductile anonyanyonangwa nembavha.Ductile iron manhole anovhara haangove neakanaka kutakura mutoro, asi zvakare anotarisa pane dhizaini yezvese ruzivo rweductile iron manhole anovhara, kunyanya maererano neanopesana nekuba, kumanikidza zvechokwadi mbavha kusvika pavanenge vasina nzira yekutanga. uye hapana anogona kuba.Vamwe vanhu vanogona kunetseka kuti mavhavha emugodhi wesimbi anogona kuita ruzha rwakanyanya kana uchityaira, izvo zvisina kufanira nekuti isu takatofunga nezvenyaya iyi mukugadzira kwedu.Kavha yega yega yegomba yakarapwa kuderedza ruzha isati yabuda mufekitari, ichinyatsoparadzanisa dambudziko rekusvibiswa kweruzha rwemavharo e ductile iron manhole.
Chekupedzisira, simba rekutakurisa rezvivharo zvemugodhi wemugodhi idiki zvakanyanya pane iro remavharo e ductile iron manhole.Kune nzvimbo dzakaita semabhandi egirinhi nemigwagwa isingade kumanikidzwa kukuru, mutengo wekushandisa mavharo emugodhi wakaumbwa wakaderera zvikuru pane wekushandisa mavharo esimbi ane ductile.
Nguva yekutumira: Aug-10-2023
