Isishwankathelo seDuctile Iron Pipe
Iipayipi zentsimbi ye-Ductile ziipayipi ezenziwe ngentsimbi ye-ductile. I-Ductile iron yintsimbi ye-graphite eyenziwe nge-spheroidized. Ukuthembeka okuphezulu kwentsimbi ye-ductile kungenxa yamandla ayo aphezulu, ukuqina, kunye nokumelana kwayo nempembelelo kunye nokugqwala. Iipayipi zentsimbi ye-Ductile zihlala zisetyenziselwa ukusasazwa kwamanzi okusela kunye nokupompa i-slurries, i-lindle kunye neekhemikhali zenkqubo. Ezi pipes zentsimbi ziphuhliswa ngokuthe ngqo kwiipayipi zentsimbi yangaphambili esele iphantse yatshintshwa ngoku. Ukuthembeka okuphezulu kweepayipi zentsimbi ye-ductile kungenxa yeempawu zayo ezahlukeneyo eziphezulu. Ezi pipes zezona pipes zifunwa kakhulu kwiindlela ezahlukeneyo zokusebenza.
Inkcazo yeeMbhobho zeNsimbi zeDuctile
| Igama lemveliso | Isinyithi esithambileyo esizixhomayo, Umbhobho wesinyithi esithambileyo oneSpigot kunye neSocket, Umbhobho wesinyithi ongwevu |
| Iinkcukacha | I-ASTM A377 Ductile Iron, ii-AASHTO M64 Cast Iron Culvert Pipes |
| Umgangatho | ISO 2531, EN 545, EN598, GB13295, ASTM C151 |
| Inqanaba leBanga | C20, C25, C30, C40, C64, C50, C100 kunye neKlasi K7, K9 kunye neK12 |
| Ubude | Iimitha ezili-1 ukuya kwezili-12 okanye ngokwemfuneko yomthengi |
| Ubungakanani | DN 80 mm ukuya kwi DN 2000 mm |
| Indlela yokudibanisa | Uhlobo lwe-T; Uhlobo lwe-k yokudibanisa oomatshini; I-self-anchor |
| Ukwaleka Kwangaphandle | Iingubo zeBitumen eziBomvu/eziLuhlaza okanye eziMnyama, i-Zn kunye ne-Zn-AI, iMetallic Zinc (130 gm/m2 okanye 200 gm/m2 okanye 400 gm/m2 ngokweemfuno zomthengi) ezihambelana nemigangatho efanelekileyo ye-ISO, IS, BS EN kunye nomaleko wokugqiba we-Epoxy Coating / Black Bitumen (ubuncinci ubukhulu be-70 micron) ngokweemfuno zomthengi. |
| Ukwaleka Kwangaphakathi | Ukufakwa kwesamente kwi-OPC/SRC/BFSC/HAC kwi-samente mortar lining ngokwemfuneko kunye nePortland Cement eqhelekileyo kunye neSulphate Resisting Cement ehambelana nemigangatho ye-IS, ISO, BS EN efanelekileyo. |
| Ukwaleka | I-zinc spray yesinyithi eneBituminous Coating (Ngaphandle) I-Cement mortar lining (Ngaphakathi). |
| Isicelo | I-Ductile cast iron Iipayipi zisetyenziselwa kakhulu ukuhambisa amanzi amdaka, amanzi okusela kunye nokunkcenkceshela. |
Amanqanaba amathathu aphambili ePipe yeSinyithi esiQhiyiweyo
I-V-2 (udidi lwama-40) I-Grey Iron, i-V-3 (65-45-12) I-Ductile Iron, kunye ne-V-4 (80-55-06) I-Ductile Iron. Zinika amandla agqwesileyo okucinezelwa kunye nokukwazi ukudambisa ukungcangcazela okuphezulu.
V-2 (udidi lwama-40) I-Grey Iron, i-ASTM B48:
Olu hlobo lunamandla aphezulu okutsalwa angama-40,000 PSI kunye namandla okucinezelwa angama-150,000 PSI. Ubunzima bayo buqala kwi-187 ukuya kwi-269 BHN. I-V-2 ifanelekile kakhulu kwizicelo zokuguguleka ngokuthe tye kwaye inamandla aphezulu, ubunzima, ukumelana nokuguguleka kunye nempendulo yonyango lobushushu kwisinyithi esingwevu esingaxutywanga. Isetyenziswa kakhulu kwizicelo zokuthwala kunye nokubopha kwishishini le-hydraulics.
I-V-3 (65-45-12) I-Ductile Iron, i-ASTM A536:
Olu hlobo lunamandla okutsalwa angama-65,000 PSI, amandla okuvelisa angama-45,000 PSI, kunye nobude obuyi-12%. Ubunzima buqala kwi-131-220 BHN. Ulwakhiwo lwayo oluhle lwe-ferritic lwenza i-V-3 ibe yeyona ndlela ilula yokulungisa kwiindidi ezintathu zesinyithi, nto leyo eyenza ukuba ibe yenye yeendidi ezikumgangatho ophezulu zokulungisa ezinye izinto ze-ferrous; ngokukodwa idityaniswe nefuthe elifanelekileyo, ukudinwa, ukuqhuba kombane kunye neempawu zokungena kwemagnethi. I-Ductile Iron, ingakumbi iipayipi, isetyenziselwa ikakhulu amanzi kunye nemibhobho yamanzi amdaka. Le ntsimbi ikwafumaneka rhoqo kwiindawo zeemoto kunye nezicelo zoshishino.
I-V-4 (80-55-06) I-Ductile Iron, i-ASTM A536:
Olu hlobo lunamandla okutsalwa angama-80,000 PSI, amandla okuvelisa angama-55,000 PSI kunye nokwandiswa kwe-6%. Lulolona mandla aphezulu kwiindidi ezintathu, njenge-cast. Olu hlobo lunokulungiswa ngobushushu ukuya kwi-100,000 PSI amandla okutsalwa. Lune-10-15% ephantsi kune-V-3 ngenxa yesakhiwo sayo se-pearlitic. Luhlala lukhethwa xa kufuneka izixhobo zesinyithi.
Iipayipi ze-DI zingcono kuneepayipi zentsimbi / zePVC / zeHDPE
• Iipayipi ze-DI zikwagcina iindleko zokusebenza ngeendlela ezahlukeneyo kuquka iindleko zokupompa, iindleko zokucofa, kunye nomonakalo onokwenzeka ovela kwezinye izakhiwo, nto leyo ebangela ukusilela kunye neendleko zokulungisa ngokubanzi.
• Iindleko zobomi bemibhobho ye-DI yenye yezona nzuzo zayo zibalaseleyo. Ekubeni ihlala izizukulwana ngezizukulwana, ingabizi kakhulu ukuyisebenzisa, kwaye ifakelwa kwaye isebenza ngokulula nangokufanelekileyo, iindleko zayo zexesha elide okanye zobomi ziphantsi ngokulula kunezinye izinto.
• Umbhobho wentsimbi othuthwayo ngokwawo uyinto enokuphinde isetyenziswe ngokupheleleyo.
• Yomelele ngokwaneleyo ukuba imelane neemeko ezinzima kakhulu, ukusuka ekusetyenzisweni koxinzelelo oluphezulu, ukuya kwimithwalo enzima yomhlaba kunye nokuhamba kwezithuthi, ukuya kwiimeko zomhlaba ezingazinzanga.
• Ukufakela kulula kwaye kukhuselekile kubasebenzi abanokusika nokucofa iDuctile Iron Pipe kwindawo leyo.
• Uhlobo lwentsimbi yeDuctile Iron Pipe luthetha ukuba umbhobho ungafumaneka lula phantsi komhlaba ngezixhobo zokufumana imibhobho zesiqhelo.
•Iipayipi ze-DI zinamandla aphezulu okutsalwa kunentsimbi ethambileyo kwaye zigcina ukumelana nokugqwala okuqhelekileyo kwesinyithi esityhidiweyo.
