Bututun ƙarfe mara nauyi ana yin injina daga billet ɗin da aka yi.Karamin sikelin karfe shuka, saboda rashin aiki iya aiki, ba sayan da ake sarrafa a cikin karfe billets da kansu, amma sayan kauri-bango karfe, bayan sanyi kõma a mayar da su factory sau da yawa, samun karami size annealed, sa'an nan zuwa ga masana'antar sarrafa ƙarfe mai kyau don ƙarin sarrafawa.Sashe na ciki bututu surface roughness masana'antun sun aika mafi girma ciki saman bututun karfe abin nadi, don samun haske ciki.Amma a kan aiwatar da mirgina m wani lokacin samu a cikin karfe bututu tare da kankanin warping.Ana iya samar da fata na Alice a lokacin mirgine BUE, yana iya kasancewa da ingancin ƙarfe da kanta.

BUE tana nufin nadi mai ban sha'awa, wanda ke bayyana a saman ƙananan guntun ƙarfe na mannewa da taurinsa.Lokacin da surface na karfe bututu yi m, tun da workpiece abu ne tura crack, don haka guntu a gaban kayan aiki don samar da mai yawa matsa lamba da gogayya samar da mai yawa yankan zafi.A cikin irin wannan babban zafin jiki da matsa lamba, wannan ɓangaren guntu yana hulɗa da kayan aikin da ke gaba saboda gogayya, yawan gudu yana raguwa sosai, yana samar da "matakin zama."Lokacin da kayan juzu'i, sau ɗaya ya fi ƙarfin ɗauri tsakanin lattice na ciki, "launi mai riƙewa" a cikin wasu kayan za a haɗa shi zuwa gaba kusa da ƙarshen kayan aiki don samar da BUE.BUE idan an bar shi akan saman da aka yi amfani da shi, samuwar burrs, yana ƙaruwa da ƙarancin ƙasa.Ciki marar lahani na warp da substrate an haɗa shi zuwa tushe daga warped fita, ba al'amuran waje ba a manne da substrate bayan extrusion.Ya kamata a manne da BUE a cikin ƙasa maras kyau ba za a haɗa shi da saman ciki na bututun ƙarfe daga matrix microstructure na view.Saboda haka, ya kamata a ƙirƙiri saman ciki na warp maras kyau ba ta hanyar ƙirar BUE mai ban sha'awa ba, amma ba ƙirƙirar al'amuran waje ba.Kayan ya ratsa ta cikin biyun sanyi-sanyi, sanyi-jawo duka bayan kowane recrystallization annealing, bayan annealing fatan samun uniform lafiya ferrite da pearlite equiaxed hatsi.Amma microscopic samfurin na kayan a fili m hatsi, da kuma rarraba ne sosai m da kuma samun gida Wilcoxon, yana nuna abu a lokacin zafi magani muhimmanci overheating.M hatsi samar bayan overheating, halakar da asali m tsarin hatsi, bayan sanyi zane pearlite da ferrite zama banded pearlite da ferrite sauki stratification.Bayan m a karfe mirgina, da kayan aiki zuwa workpiece da babban latsa karfi, sa'an nan bututu shi ne yiwuwa ga warping.Babu shakka overheating a cikin zafi magani, shi ne babban dalilin warping tsara.

Tun da babban dalilin warping da aka samar a lokacin zafi jiyya na karfe overheating, shi wajibi ne don sarrafa annealing zafin jiki ta sarrafa annealing zafin jiki bayan sanyi-ja karfe don yin domin samun uniform lafiya equiaxed ferrite da pearlite.Haɓaka masu kyau na Uniform suna haɗuwa don sa hatsin ya zama mafi mahimmanci, ta yadda ƙarfin da taurin karfe suna da kyau.

Masu kera bututun ƙarfe mai sanyi don adana kuɗi, sukan rage yawan zane, kuma a duk lokacin da mafi ƙarancin diamita yayin da aka ja bututun, hakan na iya haifar da jan ƙarfe da yawa akan bututun ƙarfe na iya jure matsakaicin matsakaicin, da haɓaka damuwa na ciki. bututu, bututun ƙarfe a ƙarƙashin rinjayar waje ta lahani na extrusion irin su fasa cikin sauƙi.Saboda haka, sarrafa zafin jiki na zafin jiki yayin sarrafa kowane gefen karfe da aka zana sanyi yana da matukar mahimmanci.