42CrMo isina musono simbi pombindeyesimbi yakasimba-yepamusoro-soro, ine simba rakawanda uye kusimba, kuomarara kwakanaka, hapana kushatirwa kuri pachena, kuneta kwakanyanya uye kupikisa kwakawanda mushure mekudzima nekudzikama, uye kusimba kwakanaka kwekushomeka kwekushisa.
Iyo simbi yakakodzera kugadzira yakakura uye yepakati-saizi epurasitiki mold inoda imwe simba uye kuoma.Yayo inowirirana ISO mhando: 42CrMo4 inoenderana neJapan brand: scm440 inoenderana neGerman brand: 42CrMo4 inenge inoenderana neAmerican brand: 4140 maitiro uye chiyero chekushandisa: kusimba kwepamusoro, kuoma kwepamusoro, kusimba kwakanaka, kuderera kudiki panguva yekudzima, uye yakakwirira simba rekukambaira uye kutsungirira simba pakupisa kukuru.Inoshandiswa kugadzira mafogi ane simba repamusoro uye akakura akadzimwa uye akadziya muchinjiko-chikamu pane 35CrMo simbi, senge magiya mahombe ekutambisa locomotive, supercharger transmission giya, kumashure shafts, matanda ekubatanidza uye zvimedu zvechitubu zvine mutoro wakakura, dhiza pombi majoini uye kubata hove. zvishandiso zvemafuta akadzika matsime pazasi 2000m, uye molds yekubhenda michina.
Kemikari ye42CrMo isina musono pombi yesimbi: c: 0.38% - 0.45%, si: 0.17% - 0.37%, mn: 0.50% - 0.80%, cr: 0.90% - 1.20%, mo: 0.15% - 0.25%, Ni 0.25% 0.030%, P ≤ 0.030%, s ≤ 0.030%
Basa reakasiyana makemikari zvinhu mumapombi esimbi:
Kabhoni (c):musimbi, iyo yakakwira kabhoni yemukati, iyo yakakwirira kusimba uye kuoma kwesimbi, asi iyo plastiki uye kuoma kuchaderedzwa zvakare;Pane zvinopesana, iyo yakaderera iyo kabhoni yemukati, iyo yakakwirira yepurasitiki uye kuoma kwesimbi, uye kusimba kwayo nekuoma kwayo kuchaderedzwawo.
Silicon (SI):yakawedzerwa kune yakajairwa kabhoni simbi se deoxidizer.Huwandu hwakakodzera hwesilicon hunogona kuvandudza kusimba kwesimbi pasina akakosha mhedzisiro papurasitiki, kukanganisa kuoma, kutonhora kwekukotama kuita uye weldability.Kazhinji, iyo silicon yemukati yesimbi yakaurayiwa ndeye 0.10% - 0.30%, uye yakawandisa yemukati (kusvika 1%) inoderedza purasitiki, kukanganisa kuoma, kuramba ngura uye weldability yesimbi.
Manganese (MN):i deoxidizer isina simba.Huwandu hwakakodzera hwemanganese hunogona kunyatso kuvandudza kusimba kwesimbi, kubvisa pesvedzero yesarufa neokisijeni pane inopisa brittleness yesimbi, kunatsiridza kupisa kushanda kwesimbi, uye kunatsiridza kutonhora brittleness maitiro esimbi, pasina kudzikisa zvakanyanya plastiki uye kukanganisa. kuoma kwesimbi.Zviri mukati manganese mune yakajairwa kabhoni simbi inenge 0.3% - 0.8%.Kunyanya kukwira (kusvika 1.0% - 1.5%) kunoita kuti simbi iite brittle uye yakaoma, uye inoderedza kushora kwesimbi uye weldability yesimbi.
Chromium (CR):inogona kuvandudza kusimba uye kuoma kwekabhoni simbi mu rolling state.Deredza kureba uye kuderedza nzvimbo.Kana iyo chromium yemukati ichipfuura 15%, iyo simba uye kuoma kunoderera, uye kureba uye kuderedzwa kwenzvimbo kuchawedzera zvinoenderana.Zvikamu zvine chromium simbi zviri nyore kuwana yakakwirira yepamusoro yekugadzirisa mhando mushure mekugaya.
Basa guru rechromium musimbi yakadzima uye yakadzikama nderekuvandudza kuoma.Mushure mekudzima uye kudziya, simbi ine zvirinani zvakakwana zvemichina zvivakwa, uye chromium ine carbides inogona kuumbwa mucarburized simbi, kuitira kuti ivandudze kupfeka kuramba kwechinhu chepamusoro.Chromium chimwe chezvinhu zvakakosha musimbi isina tsvina, iyo inonyanya kunatsiridza kudzivirira ngura, kuoma uye kupfeka kuramba kwesimbi.
Molybdenum (MO):molybdenum inogona kunatsa zviyo zvesimbi, kuvandudza kuomarara uye kusimba kwekupisa, uye kuchengetedza simba rakakwana uye inokambaira kuramba pakupisa kwepamusoro (kushushikana kwenguva refu uye deformation pakupisa kwakanyanya, kunonzi creep).Kuwedzera molybdenum kune yakarongeka simbi inogona kuvandudza michina zvivakwa.Inogonawo kudzivisa brittleness yesimbi yealloy inokonzerwa nemoto.
Sarufa:chinhu chinokuvadza.Ichakonzeresa kupisa kwesimbi uye kuderedza plastiki, kukanganisa kuoma, kuneta simba uye ngura kuramba kwesimbi.Iyo sulfur yemukati yesimbi yekuvakwa kwakawanda haingapfuuri 0.055%, uye haingapfuure 0.050% mune welded zvimiro.Phosphorus: chinhu chinokuvadza.Kunyangwe ichigona kunatsiridza kusimba uye ngura kuramba, inogona kudzikisa zvakanyanya plastiki, kukanganisa kuoma, kutonhora kukotama kuita uye weldability, kunyanya kutonhora embrittlement pane yakaderera tembiricha.Zviri mukati zvinofanirwa kudzorwa zvakanyanya, kazhinji zvisingapfuure 0.050%, uye zvisingapfuure 0.045% muzvimiro zvakashongedzwa.Okisijeni: chinhu chinokuvadza.Kukonzera kupisa brittleness.Kazhinji, zvirimo zvinofanirwa kuve zvisingasviki 0.05%.Nitrogen: inogona kusimbisa simbi, asi zvakanyanya kuderedza purasitiki, kuoma, weldability uye kutonhora kukotama zvimiro zvesimbi, uye kuwedzera kuchembera uye kutonhora brittleness.Kazhinji, zvirimo zvinofanirwa kuve zvisingasviki 0.008%.
Nguva yekutumira: Aug-11-2022