Mukurapa kwekupisa kwekugadzira, nekuda kwesimba rakakura rechoto chekudziya uye nguva yakareba yekuvharisa, simba rekushandisa rakakura mukuita kwese, munguva yakareba, nzira yekuchengetedza simba mukupisa kwekupisa kwekugadzira kwave kuri. dambudziko rakaoma.

Iyo inonzi "zero insulation" quenching, ndiko kunongedza kuforoma kudziyisa, pamusoro wayo uye musimboti kusvika quenching kudziyisa tembiricha, hapana insulation, pakarepo quenching kutonhora muitiro.According echinyakare austenitic dzidziso, the forging inofanira kuva refu. nguva yekudzivirira mukupisa, kuitira kuti apedze nucleation uye kukura kwezviyo zve austenitic, kuparara kwemasimende yakasara uye homogenization ye austenitic. Ikozvino kudzima uye kupisa tekinoroji yekugadzira inogadzirwa pasi pekutungamirirwa kweiyi dzidziso. ikozvino kudzima maitiro, "zero kupisa kuchengetedza" kudzima kunochengetedza nguva yekuchengetedza kupisa kunodiwa nehomogenization yeaustenitic chimiro, kwete chete inogona kuchengetedza 20% -30% yesimba, kuvandudza kugadzirwa kwe20% -30%, asi zvakare inogona kuderedza. kana kubvisa kukanganisa kwe oxidation, decarbonization, deformation uye zvichingodaro, izvo zvinobatsira pakuvandudzwa kwemhando yechigadzirwa.

Kana kabhoni simbi uye yakaderera alloy simbi inopisa kuAc1 kana Ac2, iyo homogenization process ye austenite uye kupera kwe carbides mu pearlite inokurumidza.Kana saizi yesimbi iri yechikamu chakaonda chikamu, kuverenga kwekupisa nguva hakudi kufunga. Thermal insulation, ndiko kuti, kuwana zero thermal insulation quenching.Semuyenzaniso, kana dhayamita kana ukobvu hwe45 simbi workpiece isingapfuuri 100mm, kupisa muchoto chemhepo, tembiricha yepasi uye musimboti inenge yasvika. panguva imwe chete, saka nguva yayo yeyunifomu inogona kufuratirwa, kana ichienzaniswa neyechinyakare kugadzirwa maitiro (r = aD) ine hombe yekudziya coefficient, inogona kuderedzwa neinoda kusvika 20% -25% yekudzima kupisa nguva.

Ongororo yedzidziso uye mhedzisiro yekuyedza inoratidza kuti zvinogoneka kutora "zero insulation" mukudzima uye normalizing kupisa kwesimbi yezvimiro. Kunyanya, 45, 45 mn2 kabhoni structural simbi kana single element alloy structural simbi, kushandiswa kwe "zero insulation" 45, 35CrMo, GCrl5 uye mamwe magadzirirwo esimbi, kushandiswa kwe "zero insulation" kupisa kupfuura kupisa kwechinyakare kunogona kuchengetedza nguva yekupisa inosvika makumi mashanu muzana, iyo yakazara simba rekuchengetedza ye10% - 15%, kuvandudza kushanda kwe20% -30%, panguva imwechete "zero insulation" kudzima nzira inobatsira kunatsa zviyo, kuvandudza simba.

(Kubva:168 forgings net)