Seamless simbi pombi inogadzirwa kubva kubillet yakagadzirwa.Diki-mwero simbi chirimwa, nekuda kwekushaikwa kwekugadzirisa kugona, kwete kutenga kunogadziriswa kuita simbi mabheti ivo pachavo, asi tenga gobvu-yakavezwa simbi, mushure mekutonhora kunokwevera kumashure kufekitari kakawanda, tora saizi diki isina musono yakashongedzwa, wozoenda kune yakanaka simbi yekugadziridza chirimwa kuti uwedzere kugadzirisa.Chikamu chemukati pombi pamusoro roughness vagadziri vakatumira yakakwirira yomukati pamusoro pesimbi pombi boring roller, kuwana inopenya yomukati pamusoro.Asi mukukunguruka kunofinha dzimwe nguva kunowanikwa mukati mepombi yesimbi ine diki warping.Ganda reAlice rinogona kugadzirwa panguva yekufinha roll BUE, inogona kunge iri yemhando isina mubvunzo simbi pachayo.

BUE inoreva mupumburu unofinha, unoonekwa mumuromo wezvidimbu zvidiki zvekunamira kwesimbi uye kuoma kwacho kwepamusoro.Kana pamusoro pesimbi nyere mupumburu anofinha, sezvo workpiece zvinhu anosundidzirwa mutswe, saka chip pamusoro pamberi turusi kuburitsa yakawanda kumanikidzwa uye friction kubereka yakawanda kucheka kupisa.Mune tembiricha yakanyanya uye kudzvanywa, icho chikamu chechip chinosangana nechishandiso chiri pamberi nekuda kwekukweshana, kuyerera kwacho kunodzikiswa, kuumba "nhanho yekugara."Kana iyo friction material, yakambokura kudarika simba rinosunga pakati pelatisi yemukati, "retention layer" mune zvimwe zvinhu zvinosungirirwa kumberi pedyo nemuromo wechishandiso kugadzira BUE.BUE kana yakasiiwa pamusoro pemuchina, kuumbwa kwemaburrs, kuwedzera roughness.Seamless yemukati pamusoro peiyo warp uye iyo substrate yakabatana kune hwaro kubva kune yakarukwa kunze, kwete yekunze nyaya inonamatira kune substrate mushure me extrusion.Iyo BUE inofanirwa kuverengerwa munzvimbo isina musono haingabatanidzwe nemukati wepombi yesimbi kubva kune matrix microstructure yekuona.Naizvozvo, iyo yemukati yemukati yewarp isina musono inofanirwa kugadzirwa kwete nekufinha BUE roll kugadzira, asi kwete yekune dzimwe nyika kuumbwa.Izvo zvinhu zvinopfuura nepakati pezviviri-zvinotonhora, zvinotonhora-zvinodhonzwa zvese mushure meimwe neimwe recrystallization annealing, mushure mekuwedzera tariro yekuwana yunifomu yakanaka ferrite uye pearlite equiaxed tsanga.Asi microscopic sampuro yezvinhu zviri pachena kuti yakakora zviyo, uye kugovera hakuna kuenzana uye kunowanikwa munharaunda Wilcoxon, inoratidza zvinhu panguva yekupisa kurapwa zvakanyanya kupisa.Mbeu dzakakora dzakagadzirwa mushure mekupisa, dzakaparadza chimiro chezviyo chakaonda, mushure mekutonhora kudhirowa pearlite uye ferrite yakave yakasungwa pearlite uye ferrite nyore stratification.Mushure mekufinha mukukunguruka kwesimbi, chishandiso kune iyo workpiece ine simba guru rekudzvanya, ipapo pombi inongoita warping.Zviripachena overheating mukupisa kurapwa, ndicho chikonzero chikuru warping chizvarwa.

Sezvo chikonzero chikuru chehondo chinogadzirwa panguva yekupisa kwekupisa kwesimbi kupisa, zvinodikanwa kudzora tembiricha yeannealing nekudzora tembiricha yeannealing mushure mekutonhora-inodhonzwa simbi kugadzira kuwana yunifomu yakanaka equiaxed ferrite uye pearlite.Mbeu dzakakwana dzakafanana dzinobatanidza kuita kuti zviyo zvive zvakaoma, kuitira kuti kusimba uye kusimba kwesimbi zvakanaka.

Vagadziri vepombi yesimbi inotonhora-inodhonzwa kuitira kuchengetedza mari, kazhinji inoderedza huwandu hwekudhirowa, uye nguva imwe neimwe iyo dhayamita shoma sepombi inodhonzwa, saka inogona kukonzera kudhonza kwakanyanya pamusoro pepombi yesimbi inogona kumira zvakanyanya, uye kuwedzera kushushikana kwemukati. pombi, simbi pombi pasi pesvedzero yokunze kubudikidza extrusion kuremara akadai makatsemuka nyore.Naizvozvo, inodzorwa kupisa kupisa tembiricha uchidzora yega yega kudhirowa inotonhora-inodhonzwa simbi margin inonyanya kukosha.