Mapaipi a Iron Pipe Katswiri wa Ductile Cast Iron Mapaipi

Kufotokozera Zopanga

● Kuyamwa modzidzimutsa.Mayamwidwe owopsa a chitsulo cha ductile ndichabwino kuposa chitsulo chotuwira.Kukwera kwa spheroidization rate, kumachepetsa kuyamwa kwa mantha.Kutentha kumakwera, kuyamwa kwachitsulo cha imvi kumachepa, koma zotsatira zake pa ductile iron ndizochepa.

● kudula ntchito.Chitsulo chachitsulo chimakhala ndi graphite yambiri, yomwe imathandizira kudula mafuta.Choncho, kukana kudula kwa chitsulo cha ductile ndi chochepa kusiyana ndi chitsulo, ndipo liwiro la kudula ndilokwera kwambiri.

● Kutentha thupi.Chitsulo cha ductile sichikhoza kuwotcherera, chokonzedwa ndi kuwotcherera.Pamene zili osowa lapansi magnesium aloyi mu ductile chitsulo ndi mkulu, n'zosavuta kutulutsa pakamwa woyera kapena martensitic dongosolo kupanga kupsyinjika mkati ndi ming'alu m'dera pafupi weld.

● Kukana kutentha.Ma graphite mu chitsulo cha ductile amalekanitsa wina ndi mzake, zomwe zimalepheretsa kufalikira kwa mpweya pa kutentha kwakukulu poyerekeza ndi chitsulo chotuwa.Chifukwa chake, kukana kwa okosijeni ndi kukana kukula kwa chitsulo cha ductile ndizabwinoko kuposa chitsulo chotuwira ndi chitsulo chosungunuka.Kuchuluka kwa kutentha kwachitsulo kwa ferritic ductile iron kuli bwino kuposa chitsulo cha pearlitic ductile.Kuchulukitsa zomwe zili mu silicon kapena aluminiyamu kumatha kupititsa patsogolo kukana kwa okosijeni ndi kukana kutentha kwa chitsulo cha ductile.

● Kukana dzimbiri.Chitsulo chachitsulo ndi chitsulo chotuwira chimakhala ndi kukana kwa dzimbiri mu njira ya alkaline, ndipo kukana kwa dzimbiri kwa chitsulo cha ductile ku organics, sulfides, ndi zitsulo zosungunuka (zotsika zosungunuka) ndizofanana ndi chitsulo chotuwa.

● Kukana kuvulala.Chitsulo chachitsulo ndi chinthu chabwino chosavala komanso chochepetsera kuvala, ndipo kukana kwake kumakhala bwino kuposa chitsulo chotuwa, carbon steel komanso chitsulo chochepa cha alloy chokhala ndi matrix omwewo.

● (1) Kupaka mafuta ndi kuvala kukana, kuvala kukana kwachitsulo cha ductile kuli bwino kuposa chitsulo cha imvi.

● (2) Abrasive wear, ductile iron amakhalanso ndi ntchito zina pansi pa abrasive kuvala.Komabe, poyerekeza ndi chitsulo choyera ndi chitsulo chochepa cha aloyi, kukana kwachitsulo cha ductile sikuli kwabwino kwambiri, chitsulo chokhacho cha ductile kapena alloy Bainite ductile iron chimakhala ndi kukana kwabwino.

Malo Ofunsira

Amagwiritsidwa ntchito kunyamula mitundu yosiyanasiyana yamadzi (mwachitsanzo: madzi osaphika, madzi oyeretsedwa, kugwiritsanso ntchito madzi, etc.)

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