Ruzivo rwekutanga rwesimbi zvinhu (1)

Nguruve simbi nesimbi zvakabatanidzwa zvinonzi simbi dzine ferrous.Iron ndicho chikamu chayo chikuru uye zvakare ine imwe huwandu hwekabhoni uye zvimwe zvinoteedzera zvinhu.Alloys ane carbon content isingasviki 2.11% (mass) anonzi simbi, uye alloys ane carbon content yakakura kudarika kana yakaenzana ne2.11% (misa) inonzi simbi yenguruve.

Simbi yenguruve inogona kupatsanurwa kuita simbi yenguruve yekugadzira simbi (inozivikanwawo sedare chena) uye simbi yenguruve yekukanda.

Simbi yakakandwa inonzi simbi yakakandwa.Zvinoenderana nechimiro chechimiro chegraphite, simbi yakakandwa inogona kukamurwa muzvikamu zvinotevera: grey cast iron, codenamed HT;ductile cast iron, codenamed QT;simbi yakakandwa isingadziviriri;mamwe simbi dzakakandwa, senge simbi inodzivirira kupisa uye inogadzika simbi inogadzika, Inogadzika simbi inonzi code-inodanwa kuti KT, inozivikanwawo sesimbi inogadzika.

Mapombi esimbi anodzvanywa nesimbi haasisiri kugadzirwa muUnited States nedzimwe nyika, asi anogona kugadzirwa mune dzimwe nyika.Ductile iron pressure pombi dzakatsiva pombi dzesimbi dzakakandwa.Zvinoenderana nezvinodiwa chiyero zvinosanganisira: ASME B16.3, ASME B16.4, ASME B16.12, ASME B16.42, ASMEB16.42, ASTM A74, ASTM A126, AWWA C110, AWWA C111, AWWA C150, AWWA C153, etc.

Simbi inongova alloy.Chinhu chikuru isimbi uye kabhoni kadiki.Iinewo trace elements sesilicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, tungsten uye vanadium.Kurongeka kwesimbi kunoratidzwa mumufananidzo