Ductile cast Iron manhole

Ductile cast Iron manholebigizwe ahanini nibyuma byangiza.

Igifuniko cyicyuma cya manhole gifitemo inyungu:

kubera imbaraga nyinshi hamwe nubukomezi bwiza bwicyuma cyimyanda, igifuniko cyicyuma cya manhole gipfundikirwa30% byorohejekurenza ibara ryicyuma manhole igifuniko cyubwoko bumwe.

Ibiranga igifuniko cyicyuma cya manhole:

① Gukomera. 

Ingaruka zingaruka zirenze inshuro 10 ibikoresho byicyuma.

②Kurwanya ruswa ikomeye.

Ikizamini cyamazi ya spray, iminsi 90 kwangirika ni 1/40 gusa cyumuyoboro wicyuma, ni 1/10 cyumuyoboro wicyuma.Ubuzima bwa serivisi bukubye inshuro 2 kurenza ubw'icyuma cyumuhondo nicyatsi inshuro 5 kurenza icyuma gisanzwe.

③Amashanyarazi meza.

uburebure ≥7%, bisa nicyuma kinini cya karubone.Ariko ibara ry'icyuma rirambuye ni nka zeru.

④Imbaraga nyinshi.

Imbaraga zingana OB ≥420MPa, imbaraga zitanga OS ≥300MPa, ni inshuro eshatu zicyuma cyicyuma.