Uhlalutyo lweSimo seMetallographic kunye neendlela zoVavanyo loBulukhuni beDuctile Iron

Umgangatho wokuhlolwa kwesinyithi kwisinyithi esithambileyo sisiseko esisisiseko sokuveliswa kwesinyithi esithambileyo, ukuhlolwa komgangatho wemveliso, kunye nolawulo lomgangatho. Uhlalutyo lwesinyithi kunye novavanyo lobunzima lunokwenziwa ngokuhambelana nomgangatho wamazwe ngamazwe we-ISO 945-4:2019 Uhlolo lwesinyithi oluthambileyo lwesinyithi esithambileyo, kwaye inkqubo yile ilandelayo:

I.Ukusika kunye nokuthatha isampuli:

Umatshini wokusika i-metallographic usetyenziselwa ukusika isampuli. Ukupholisa amanzi kusetyenziswa kuyo yonke inkqubo yokusika ukuthintela utshintsho kwisakhiwo se-metallographic sesampuli esibangelwa ziindlela ezingafanelekanga zokuthatha isampuli. Ngokukodwa, iimodeli ezahlukeneyo zoomatshini bokusika i-metallographic zinokukhethwa ukuze zisikwe kwaye zithole isampuli ngokusekelwe kubukhulu besampuli kunye neenkqubo ezifunekayo ngokuzenzekelayo.

II.Isampulu yokuGcada nokuPolisha:

Emva kokusika, isampuli (kwizinto zokusebenza ezingacwangciswanga, i-mounting press nayo iyafuneka ukwenza isampuli) iyagaywa kumatshini wokugaya nokupolisha wesampulu ye-metallographic kusetyenziswa amaphepha e-sandpaper anobukhulu obahlukeneyo ukusuka ku-gray ukuya ku-fine. Iintlobo ezintathu okanye ezine ze-sandpaper zinokukhethwa ukuze zigaywe ngokwezinto zokusebenza ezahlukeneyo, kwaye isantya sokujikeleza komatshini wokugaya nokupolisha kufuneka sikhethwe ngokusekelwe kwimveliso.

Isampuli emva kokusila ngesanti ipholishwa kusetyenziswa ilaphu lokupholishwa eline-diamond polishing compound. Isantya sokujikeleza komatshini wokusila nokupholishwa sinokulungiswa ngokwezinto zokusebenza.

III.Uvavanyo lweMetallographic:

Ngokuhambelana neemfuno ze-GB/T 9441-2021 Metallographic Testing Standard yeDuctile Iron, i-microscope ye-metallographic enomlinganiselo ofanelekileyo ikhethwa ukuthatha iifoto zesakhiwo se-metallographic ngaphambi nasemva kokubola.

IV.Uvavanyo loBulukhuni beDuctile Iron:

Uvavanyo lokuqina kwentsimbi ethambileyo lusekelwe kwi-ISO 1083:2018 esemgangathweni wamazwe ngamazwe. Ubunzima beBrinell (HBW) yeyona ndlela ikhethwayo nezinzileyo yokuvavanya ubunzima.

1. Imiqathango Esebenzayo

Ubukhulu besampulu: ≥ 10mm (ububanzi bokutsalwa kwesampulu d ≤ 1/5 yobukhulu besampulu)

Imeko Yomphezulu: Uburhabaxa bomphezulu iRa emva kokucubungula yi ≤ 0.8μm (akukho sikali, imingxunya yesanti, okanye imingxunya yokuphefumla)

2. Izixhobo kunye neeParameters