Indlela yokuqhuba ukuhlolwa kwe-metallographic emva kokucima kwisithando sokufudumala sokufudumala?

Uviwo lwe-Metallographic yeengxenye zentsimbi ye-pearlite ductile emva ukufudumeza iziko ukucima kuya kwenziwa ngokuhambelana ne-JB/T 9205-2008 “I-Induction heat toning quenching metallographic examination of pearlite ductile iron parts”

1 iimeko.

I-2) Emva kokugaya, isampuli ye-metallographic ifakwe kwisisombululo sotywala esine-2% ukuya kwi-5% ye-nitric acid ngevolumu kuze kube yilapho kubonakaliswe uluhlu olucacileyo olulukhuni.

3) Ngokwemiyalelo yokuhlelwa kwe-microstructure eboniswe kwiThebhile 6.2 kunye netshathi yokuhlelwa kwe-microstructure kwi-JB / T 9205-2008, yenza uvavanyo lwe-metallographic. Phakathi kwabo, amabanga 3 ukuya ku-6 afanelekile; xa kukho iimfuno ezikhethekileyo, ziya kuphunyezwa ngokuhambelana namaxwebhu afanelekileyo obugcisa.

Itheyibhile 6-2 Inkcazo ye-microstructure classification of pearlite ductile iron castings emva kokucima kwisithando sokufudumala sokufudumala

Inqanaba/inqanaba	Iimpawu zombutho
1	I-coarse martensite, i-austenite enkulu egciniweyo, i-ledeburite, i-spheroidal graphite
2	I-coarse martensite, i-austenite enkulu egciniweyo, i-spheroidal graphite
3	I-Martensite, i-austenite enkulu egciniweyo, i-graphite engqukuva
4	I-Martensite, inani elincinci le-austenite egciniweyo, i-spheroidal graphite
5	Imartensite entle, igraphite engqukuva
6	I-martensite entle, inani elincinci le-ferrite enganyibilikiyo, i-spheroidal graphite
7	I-martensite entle, inani elincinci leperile enganyibilikiyo, i-ferrite enganyibilikiyo, igraphite engqukuva
8	Imartensite entle, isixa esikhulu seeperile ezinganyibilikiyo, iferrite enganyibilikiyo, igraphite engqukuva