Carbon ndechimwe chezvinhu zvikuru zveindasitiri simbi.Kuita uye kuumbwa kwesimbi kunonyanya kutsanangurwa nemukati uye kugovera kabhoni musimbi.Mhedzisiro yekabhoni inonyanya kukosha musimbi isina tsvina.Kufurira kwekabhoni pachimiro chesimbi isina tsvina kunonyanya kuratidzwa muzvikamu zviviri.Kune rimwe divi, kabhoni chinhu chinodzikamisa austenite, uye mhedzisiro yacho yakakura (inenge 30 yakapetwa iyo nickel), kune rumwe rutivi, nekuda kwepamusoro hukama hwekabhoni uye chromium.Yakakura, ine chromium - yakaoma yakatevedzana ye carbides.Nokudaro, maererano nesimba uye kusagadzikana kwekuora, basa rekabhoni musimbi isina tsvina rinopesana.
Tichiziva mutemo weiyi pesvedzero, tinogona kusarudza simbi dzisina tsvina dzine akasiyana kabhoni zvemukati zvinoenderana nezvinodiwa zvakasiyana zvekushandisa.
Semuenzaniso, iyo yakajairwa chromium yemukati yemagiredhi mashanu esimbi e0Crl3 ~ 4Cr13, iyo inonyanya kushandiswa muindasitiri uye idiki, inoiswa pa12 ~ 14%, ndiko kuti, zvinhu izvo kabhoni uye chromium zvinoumba chromium carbide zvinotariswa.Chinangwa chakasimba ndechekuti mushure mekunge kabhoni nechromium zvabatanidzwa kuita chromium carbide, chromium yemukati mune yakasimba mhinduro haizove yakaderera pane shoma chromium yemukati ye11.7%.
Nezve aya magiredhi mashanu esimbi ane chekuita, nekuda kwemutsauko mune kabhoni yemukati, kusimba uye kushora kuramba kwakasiyanawo.Kupokana kwekuora kwe0Cr13 ~ 2Crl3 simbi kuri nani asi simba rakaderera pane iro re3Crl3 uye 4Cr13 simbi.Inonyanya kushandiswa kugadzira zvikamu zvemukati.
Nekuda kwehuwandu hwekabhoni, magiredhi maviri esimbi anogona kuwana simba rakawanda uye anonyanya kushandiswa mukugadzirwa kwezvitubu, mapanga uye zvimwe zvikamu zvinoda simba rakawanda uye kupfeka kusagadzikana.Kune mumwe muenzaniso, kuti ukunde intergranular corrosion ye18-8 chromium-nickel simbi isina tsvina, iyo kabhoni yesimbi inogona kuderedzwa kusvika isingasviki 0.03%, kana chinhu (titanium kana niobium) ine hukama hukuru kupfuura chromium uye kabhoni inogona kuwedzerwa kuidzivirira kubva pakugadzira carbide.Chromium, semuenzaniso, kana kuomarara kwepamusoro uye kusamira kwekupfeka zviri izvo zvinonyanya kudiwa, tinogona kuwedzera kabhoni yesimbi tichiwedzera chromium zviriko nenzira kwayo, kuitira kuti tisangane nezvinodiwa zvekuomarara uye kusapfeka kupfeka, uye funga nezveimwe Corrosion resistance, kushandiswa kwemaindasitiri semabearings, maturusi ekuyeresa uye mashizha ane simbi isina simbi 9Cr18 uye 9C kabhoni 9C0Cr yakakwira 9Cr17 uye 9Cr 9C kabhoni. %.Zvinoda.
Kazhinji kutaura, iyo kabhoni yemukati yesimbi isina tsvina inoshandiswa parizvino muindasitiri yakaderera.Zvizhinji zvesimbi dzisina tsvina dzine carbon content ye 0.1 kusvika 0.4%, uye masimbi asingagadziri asidi ane carbon content ye 0.1 kusvika 0.2%.Simbi dzisina tsvina dzine kabhoni inodarika 0.4% inogadzira chikamu chidiki chete chehuwandu hwemagiredhi, nekuti pasi pemamiriro mazhinji ekushandiswa, simbi dzisina tsvina dzinogara dziine corrosion resistance sechinangwa chadzo chikuru.Uye zvakare, iyo yakaderera kabhoni yemukati zvakare nekuda kwezvimwe zvinodiwa maitiro, senge nyore welding uye kutonhora deformation.
Nguva yekutumira: Sep-27-2022