Umahluko phakathi kobukhulu be-SC kunye ne-DN yombhobho wentsimbi enamazimba:

I-1.SC ngokuqhelekileyo ibhekisela kwipayipi yensimbi edibeneyo, ulwimi lwe-STEEL CONDUIT, lufutshane kwizinto eziphathekayo.

2. I-DN ibhekisela kwi-diameter yegama lombhobho wensimbi ye-galvanized, ebonisa ububanzi bombhobho wombhobho.

3. Imibhobho yensimbi enesitayile yahlulwe yaba yimibhobho yentsimbi ebandayo kunye nemibhobho yentsimbi eshushu.Imibhobho yentsimbi ebandayo iye yavalwa, kwaye le yokugqibela iye yakhuthazwa ngurhulumente ukuba isetyenziswe okwethutyana.Ngeminyaka yee-1960 kunye nee-1970, amazwe aphuhlileyo kwihlabathi aqala ukuphuhlisa iindidi ezintsha zemibhobho kunye nemibhobho evaliweyo.UMphathiswa wezoKwakha kunye namanye amacandelo amane kunye neekomishoni nazo zikhuphe uxwebhu olucacisa ukuba umbhobho we-galvanized uya kuvalwa njengombhobho wokuhambisa amanzi ukusuka kwi-2000.Imibhobho yamanzi ashushu kwezinye iindawo isebenzisa imibhobho enamazinki.Imibhobho yentsimbi eshushu-dip isetyenziswa kakhulu ekukhuseleni umlilo, amandla ombane kunye neendlela ezinkulu.
Ukwandiswa kolwazi:

Impembelelo yokusebenza

(1) Ikhabhoni;Ukuphakama kwekhabhoni, ukuphakama kokuqina kwentsimbi, kodwa ngakumbi iplastiki kunye nokuqina kwayo.

(2) isulfure;bubumdaka obuyingozi entsimbini.Xa intsimbi enomxholo ophezulu wesulfure iphantsi koxinzelelo loxinzelelo kwiqondo lokushisa eliphezulu, kulula ukuba i-brittle kwaye ngokuqhelekileyo ibizwa ngokuba yi-hot brittleness.

(3) iphosphorus;inokunciphisa kakhulu iplastiki kunye nokuqina kwentsimbi, ngakumbi kubushushu obuphantsi, le nto ibizwa ngokuba yi-cold brittleness.Kwizinga eliphezulu lensimbi, isulfure kunye ne-phosphorus kufuneka ilawulwe ngokungqongqo.Nangona kunjalo, ukusuka kwelinye imbono, ukufakwa kwe-sulfure ephezulu kunye ne-phosphorus kwintsimbi ephantsi yekhabhoni kunokukwenza kube lula ukusika, okunenzuzo ekuphuculeni ukucwangciswa kwensimbi.

(4) IManganese;inokuphucula amandla ensimbi, inokunciphisa kwaye isuse imiphumo emibi yesulfure, kwaye inokuphucula ukuqina kwentsimbi.Insimbi ephezulu ye-alloy (intsimbi ephezulu ye-manganese) enomxholo ophezulu we-manganese inokumelana nokunxiba kakuhle.Kunye nezinye iimpawu zomzimba.

(5) Isilicon;inokunyusa ukuqina kwentsimbi, kodwa iplastiki kunye nokuqina kuyancipha.Intsimbi esetyenziselwa ubunjineli bombane iqulethe inani elithile le-silicon, elinokuphucula iimpawu ezithambileyo zamagnetic.

(6) iTungsten;inokuphucula ubulukhuni obubomvu kunye namandla obushushu bentsimbi, kwaye inokuphucula ukuxhatshazwa kwentsimbi.

(7) Chromium;inokuphucula ukuqina kunye nokumelana nokunxiba kwentsimbi, kwaye inokuphucula ukuxhathisa kwe-corrosion kunye nokumelana ne-oxidation yensimbi.

Ukumelana ne-corrosion jikelele, iibhobho zensimbi eziqhelekileyo (iibhobho ezimnyama) zenziwe nge-galvanized.Imibhobho yentsimbi ekhuselweyo ihlulwe ibe yi-galvanizing eshushu-dip kunye ne-zinc yensimbi yombane.I-galvanizing layer ye-galvanizing eshushu idiphu, kwaye ixabiso le-electro-galvanizing liphantsi, ngoko kukho umbhobho wentsimbi.