Hunhu hweDuctile Iron Manhole Cover

1. Kutsungirira kwakanaka:Kukosha kwesimbi yekabhoni iri pakati nepakati kwakanaka kwazvo, kanopfuura kagumi pane simbi yegrey cast.

2. Kudzivirira ngura zvakanyanya: Mukuyedzwa kwemvura inopfapfaidzwa nengura, huwandu hwengura mumazuva makumi mapfumbamwe hunongova 1/40 chete yemapaipi esimbi uye 1/10 yemapaipi esimbi egrey. Hupenyu hwekushanda hwakapetwa kaviri kupfuura hwemapaipi esimbi egrey uye hwakapetwa kashanu kupfuura hwemapaipi esimbi akajairwa.

3. Kureba kwakanaka: Kureba ≥ 7/100, kwakafanana nesimbi ine kabhoni yakawanda, ukuwo kureba kwesimbi yegrey cast cast kuri zero.

4. Simba guru: Simba rekudhonza ó b i ≥ 420MPa, uye simba rekubudisa i ≥ 300MPa, iro rakafanana nesimbi ine kabhoni shoma uye yakapetwa katatu kupfuura simbi yegrey cast iron.
Simba re simbi ine ductile yakaenzana neyesimbi yakakandwa. Simbi yakakandwa ine simba guru rekubereka rinosvika 40k, nepo simbi yakakandwa ine simba rekubereka rinosvika 36k chete. Munzvimbo zhinji dzemashandisirwo emaguta, dzakadai semvura, mvura yemunyu, utsi, nezvimwewo, kuramba ngura uye kuramba kuoxidation kwesimbi yakakandwa kunodarika simbi yakakandwa. Nzvimbo huru dzinoshandiswa ndeidzi: migwagwa yemaguta, migwagwa mikuru, kutaurirana, magetsi, kuchengetedza mvura, nharaunda, zvikoro, nemapaki akasiyana-siyana.

5. Kudzivirira kuba uye kushanda zvakanaka kwekuchengetedza:
Simba rekudhonza uye kuramba kudzvanywa kwezvivharo zvesimbi zvine maburi akafanana nesimbi, saka zvinonzi simbi yakakandwa. Kana zvichienzaniswa nesimbi yakakandwa yegrey, mwero wayo wekureba wakawedzera zvikuru, kusimba kwayo kwakanaka, uye haikurumidzi kutyoka. Inoshanda zviri nani pakudzivirira kuba kupfuura zvakajairwa. zvifukidziro zvesimbi yesimbi, uye mashandiro ayo ese akakwirira zvikuru pane akajairika Kandai Iron Manhole machira.