Mushure mekunge ganda remafuta ratora nzira iyi yekurapa kupisa, inogona kunyatso kuvandudza kuoma kwesimba, kusimba kwesimba, uye anti-kuparadza kuita kweiyo mafuta casing, kuve nechokwadi kukosha kwakanaka mukushandiswa.Petroleum casing chinhu chinodiwa pombi yekuchera oiri uye gasi rechisikigo, uye inoda kuve nekuita kwakanaka mukushandisa.Yakasiyana tembiricha yekudzora inosarudzwa kune dzakasiyana tembiricha zvikamu zveoiri casing.Kupisa kunoda kugadzirwa maererano nehumwe tembiricha.Ye27MnCrV simbi, AC1 = 736℃, AC3=810℃, tembiricha yekudziya inofanira kunge iri 630℃mushure mekudzima, uye kupisa kupisa Nguva yekubata imaminitsi makumi mashanu;tembiricha yekudziya inosarudzwa kubva pa740 kusvika 810°C panguva sub-tembiricha quenching.Tembiricha yekupisa yekudzima-kupisa i780℃, uye nguva yekubata yekudzima kupisa ndeye maminitsi gumi nemashanu.Nekuti sub-temperature quenching inopisa mukatiα+γ maviri-phase zone, quenching inoitwa mudunhu renzvimbo isina kunyungudika ferrite, kuchengetedza yakakwirira simba uchiwana kuoma.kunatsiridza.

Kupisa kwekupisa kwemafuta casing kunofanirwa kunyatsoitwa kuti ive nechokwadi chekuti iyo inogadzirwa mafuta casing ine yakanakisa chigadzirwa mhando uye kuita, uye kana yashandiswa chete inogona kuratidza kunaka kwekushandisa kukosha uye kuita, kuomerera kune yakakwirira simba uye kuoma, uye kupisa kurapwa mukati. nzira dzakasiyana.Panguva imwecheteyo, iyo yakaderera-tembiricha yekudzima tembiricha yakaderera pane yakajairwa tembiricha, iyo inoderedza quenching kushushikana uye inoderedza quenching deformation.Izvi zvinogonesa kushanda kwakanaka kwekugadzirwa kwemafuta casing kupisa kurapwa uye kunopa mamiriro akanaka kune inotevera waya kugadzirisa.raw material.

Parizvino, iyo nzira yakashandiswa mune dzakasiyana simbi pombi kugadzirisa zvidyarwa.Iyo yemhando yekusimbisa dhata inoratidza kuti kusimba kwepombi yesimbi yakabatwa nekupisa iRm910-940MPa, simba regoho Rt0.6820-860MPa iri 100% inokwanisa, uye kuoma kwesimba Akv65-85J data inoratidza kuti Iyo 27MnCrV simbi pombi yatove. chivharo chepamusoro-soro chepamusoro-soro chegiredhi petroleum casing.Nekune rumwe rutivi, inoratidzawo kuti sub-temperature quenching process inzira yakanakisa yekudzivirira brittleness yepamusoro mukugadzirwa kwesimbi zvigadzirwa.