Chidziwitso choyambirira cha zida zachitsulo (1)

Chitsulo cha nkhumba ndi chitsulo pamodzi zimatchedwa zitsulo zachitsulo.Chitsulo ndiye chigawo chake chachikulu komanso chimakhala ndi kuchuluka kwa carbon ndi zinthu zina.Ma alloys okhala ndi mpweya wochepera 2.11% (misa) amatchedwa chitsulo, ndipo alloys okhala ndi mpweya wokulirapo kapena wofanana ndi 2.11% (misa) amatchedwa chitsulo cha nkhumba.

Chitsulo cha nkhumba chikhoza kugawidwa mu chitsulo cha nkhumba chopangira chitsulo (chomwe chimatchedwanso chitsulo choyera) ndi chitsulo cha nkhumba choponyera.

Chitsulo chachitsulo chimatchedwa chitsulo chosungunuka.Malinga ndi mawonekedwe a mawonekedwe a graphite, chitsulo choponyedwa chingagawidwe m'magulu otsatirawa: chitsulo chotupitsa, chotchedwa HT;ductile cast iron, codenamed QT;chitsulo chosagwira dzimbiri;zitsulo zina zotayidwa, monga chitsulo chosagwira kutentha ndi chitsulo chosungunuka, chitsulo chosungunuka chimatchedwa KT, chomwe chimadziwikanso kuti chitsulo chosungunuka.

Mapaipi ndi zoyikira zachitsulo sizimapangidwanso ku United States ndi mayiko ena, koma zitha kupangidwa mochuluka m'maiko ena.Mapaipi opondereza achitsulo alowa m'malo mwa mapaipi achitsulo.Zogwirizana nazo ndizo: 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.

Chitsulo kwenikweni ndi aloyi.Chigawo chachikulu ndi chitsulo ndi mpweya wochepa.Lilinso ndi zinthu monga silicon, manganese, phosphorous, sulfure, chromium, faifi tambala, molybdenum, tungsten ndi vanadium.Gulu lachitsulo likuwonetsedwa pachithunzichi