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 upedze nucleation uye kukura kweaustenitic zviyo, kuparara kwemasimende akasara uye homogenization. of austenitic.Izvino yekudzima uye kupisa tekinoroji yefogi inogadzirwa pasi pekutungamirwa kwedzidziso iyi.Kuenzaniswa neyezvino kudzima muitiro, "zero kupisa kuchengetedza" quenching inoponesa nguva yekuchengetedza kupisa kunodiwa nehomogenization yeaustenitic chimiro, kwete chete inogona. chengetedza 20% -30% yesimba, gadzirisa kugadzirwa kwe20% -30%, asi zvakare inogona kuderedza kana kubvisa kukanganisa 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. iyo thermal insulation, ndiko kuti, kuwana zero thermal insulation quenching.Somuenzaniso, kana dhayamita kana ukobvu hwe45 simbi workpiece isingapfuuri. 100mm, kupisa muchoto chemhepo, tembiricha yepasi uye musimboti inenge yasvika panguva imwe chete, saka nguva yayo yakafanana inogona kufuratirwa, kana ichienzaniswa neyechinyakare kugadzirwa maitiro (r = aD) ine hombe yekudziya coefficient, inogona yakaderedzwa neinosvika 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 simbi workpiece, kushandiswa "zero insulation" kupisa kupfuura kupisa kwechinyakare kunogona kuchengetedza kupisa nguva inosvika makumi mashanu muzana, iyo yakazara simba rekuchengetedza ye10% -15%, inovandudza kushanda kwe20% -30%, panguva imwechete "zero insulation" kudzima nzira inobatsira. kunatsa zviyo, kuvandudza simba.

(Kubva:168 forgings net)