Zvivakwa zvekubereka simbi

Kubva pane nharaunda yekushanda uye kuongororwa kwekukuvara kwekutakura simbi, simbi inotakura inoda kuva nezvinhu zvinotevera:

1. High kuonana kuneta simba uye compressive simba;

2. Kutakura simbi kunofanira kuva yakakwirira uye yunifomu kuomarara pashure kupisa kurapwa (general kutakura simbi kuomarara zvinodiwa HRC61 ~ 65);

3. Yakakwirira elastic muganho kudzivirira yakawandisa epurasitiki deformation yekutakura simbi pasi pemutoro mukuru;

4. Kumwe kuomarara kudzivirira kutakura kukuvara pasi pesimba rekuita;

5. Yakanaka dimensional kugadzikana, kudzivirira kubereka mukuchengetedza kwenguva refu kana kushandiswa nekuda kwekuchinja kwehukuru uye kuderedzwa kwekururama;

6. Kumwe kushorwa kwekupokana, mumhepo uye mafuta ekuzora hazvifanirwe kuve nyore kuita ngura kana ngura, chengetedza kupenya kwepamusoro;

7. Kushanda kwakanaka kwemaitiro, zvakadai sekutonhora, kupisa kuumba kushanda, kucheka kushanda, kugaya kushanda, kupisa kwekugadzirisa kushandiswa kwemaitiro uye nezvimwe zvakadaro, kuitira kuti zvigadzirise kuhuwandu hwakawanda, kushanda kwepamusoro, kugadzirwa kwepamusoro zvinodiwa. Pane zvakasiyana zvinodiwa zvemabheya pasi pemamiriro ekushanda akakosha. Zvakadai seyepamusoro tembiricha kuramba, corrosion kuramba, kukanganisa kupikisa, antimagnetic uye zvichingodaro.

Hupenyu hwekuneta hwekusangana hwemabheya hunonyanya kutarisisa kune inhomogeneity yechimiro uye zvinhu zvesimbi. Naizvozvo, nhevedzano yezvinodiwa inotsanangurwa kusangano riri kushandiswa uye sangano rekutanga. Iyo microstructure yekubereka simbi muhutano hwesevhisi inofanira kugoverwa zvakaenzana nefine carbide pane tempered martensite matrix. Microstructure yakadaro inogona kupa simbi inotakura zvinhu zvinodiwa. Pane zvinhu zviviri zvakakosha zvekugadzirwa kwepakutanga: imwe yakachena, inoreva zvinyorwa zvezvinhu zvisina kuchena uye inclusions musimbi kuti zvive zvishoma; Chechipiri chimiro chakafanana, izvo zvinoreva kuti iyo isiri-metallic inclusions uye carbides musimbi inofanira kunge yakaparadzirwa zvakanaka uye yakaenzana. Saka kuchena kwesimbi uye kufanana kwechimiro ndiwo matambudziko maviri makuru emhando ye metallurgical yekutakura simbi.