1. Beryllium oxide:beryllium oxide haingorasikirwe nesimbi yakawanda chete, asi zvakare inoderedza kunaka kwepamusoro kwekugadzira uye hupenyu hwesevhisi.kugadzira kufa. Kana yakatsikirirwa musimbi, iyoforgingsicharaswa. Kutadza kubvisa beryllium oxide kuchakanganisa kutendeuka.
2. Decarburization:Decarburization zvinoreva chiitiko chekuti kabhoni yese kana chikamu chiri pamusoro pesimbi inopiswa. Decarburization inoita kuti pamusoro peiyo workpiece iite seyakapfava mavara, kuderedza kuoma kwepasi, kupfeka kuramba uye kuneta simba.
3. Kupisa nekupisa zvakanyanya:Overheat inoreva simbi iri mukudziya kupfuura tembiricha inobvumirwa, kuitira kuti zviyo zvikure zvakakora. Kupisa kwakanyanya hakukonzerese kurapwa kwekupisa, kuitira kuti iyo forgings iite brittle uye michina zvimiro zvinodzikiswa, asi zvinogona kubviswa ne normalizing kana annealing mushure.forging. Kupisa (overburning) zvinoreva kuitika kwemaokisi kana kunyunguduka kwesimbi nekuda kwekureba kwenguva yekupisa uye tembiricha yakawandisa. Fivha haigoni kugadziriswa.

4. Stress:nekuda kwekusiyana kwemukati nekunze kwesimbi, kuwedzera hakuna kuenzana, uye kushushikana kwemukati kunobudiswa, iyo inonzi thermal stress. Iyo inoteedzana shanduko yemetallographic chimiro inokonzerwa nekupisa inokonzerawo kushushikana, iyo inonzi microstructure kusagadzikana. Izvi zvichaita kuti workpiece mukupisa kupisa, kukonzera workpiece mushure mekugadzirwa kwemotokari kutsemuka uye zvimedu.
5. Kutyoka muchikamu chemuchinjikwa:kukanganisa uku kunoparadza chimiro chemakemikari uye microstructure kufanana kwesimbi, kunoderedza kuoma kwekudzima uye kunokanganisa maitiro emagetsi. Kana iyo annealing tembiricha yakakwira zvakanyanya uye zvichikonzera chikamu chegraphite, hazvizove nyore kucheka uye kudzima overheating uye deformation. Asi kana iyo annealing pasi pekupisa kana yakaderera tembiricha, pearlite haigone kupedzisa kudyidzana kwepasirese, haina kukodzera kucheka uye kunotevera kupisa kurapwa.
6. yakaoma uye brittle mesh carbide: iyo inoderedza simba rekubatanidza pakati pekristaro zvinhu, iyo mechanical properties zvakanyanya kuipa, kunyanya kukanganisa kuoma kunoderedzwa, asi kunogona kuvandudzwa kana kubviswa ne normalizing. Kana paine banded carbide, ichaita kuti kuoma uye chimiro chekudzima uye kudzikamisa kusaenzana, uye nyore kuita deformation, iri zvakare chirema chebhandi chimiro che pearlite uye ferrite pamwe negwara rekugadzirisa deformation. Panguva imwecheteyo, ichaderedzawo plastiki uye kuoma kwesimbi, kuitira kuti machining saizi haagadzikane, kukurumidza kupfeka kwekushandisa.