Hanyoyin samar da ƙarfe wani muhimmin ɓangare ne na ƙirar ɓangaren kuma wani lamari ne mai matukar damuwa ga masana'antun. A yau, za mu kai ku don bincika manyan hanyoyin samar da ƙarfe: simintin gyare-gyare, yin filastik, machining, walda, ƙarfe foda, gyare-gyaren ƙarfe, ƙirar ƙarfe mai ƙarfi, da bugu na 3D.

Akwai kurakurai da yawa na tsari waɗanda ke shafar bambance-bambancen simintin gyare-gyare, gami da manyan abubuwan canji na girma huɗu: jurewar sarrafa ƙura, ƙaƙƙarfan ƙirar kakin zuma, faɗaɗa harsashi, da raguwar gami. Asalin ƙanƙantar jiki daga ƙura zuwa ƙirar kakin zuma da ƙaƙƙarfan ƙaƙƙarfar simintin gyare-gyare sune manyan dalilai guda biyu na bambancin girma na ƙarshe na simintin. Bincike ya nuna cewa a cikin simintin gyare-gyaren karfe, daidaiton girman simintin na ƙarshe ana canja shi ne daga madaidaicin madaidaicin tsarin kakinsa.

The Dacromet shafi tsari ne mai iri-sabuwar surface jiyya fasaha, kuma aka sani da Dacrol, Dacron, zinc chromate film, da kuma Dacromet, da dai sauransu. An ƙirƙira da Amirkawa a farkon 1970s da aka canjawa wuri zuwa MCI Company a Amurka, DACRAL Company a Faransa, da kuma NDS Company a Japan a kusa da 1976. Tare da ci gaban da muhalli na tattalin arzikin duniya ya zama wani muhimmin kariya ga tattalin arzikin duniya. A shekarar 1996, tsohuwar ma'aikatar kere-kere ta kasar Sin ta bayyana tsarin Dacromet a matsayin wani muhimmin aikin raya kasa na samar da tsaftataccen aikin samar da injuna, wanda wani nau'i ne na "kore electroplating". A cikin ƙasashe masu ci gaban masana'antu, fasahar hana lalatawar ƙarfe ta Dacromet an karɓi ta azaman tsarin kula da lalata don maye gurbin hanyoyin gargajiya kamar su electro-galvanizing, hot-dip galvanizing, electro-cadmium plating, zinc-based alloy plating, da phosphating, waɗanda ke haifar da gurɓataccen gurɓataccen yanayi. Wannan sabon tsari ne wanda ke rage gurbatar muhalli a asali.

17-4PH karfe ne na hali martensitic hazo-hardening bakin karfe, wanda yana da babban ƙarfi da taurin kazalika da kyau lalata juriya. Bayan bayani jiyya a 1040 ℃, 17-4PH karfe da aka hõre guda tsufa magani a 480 ℃ da 550 ℃ bi da bi, sa'an nan zuwa sakandare tsufa a 550 ℃ bayan tsufa a 480 ℃. An gano kaddarorin injina da canje-canjen microstructure na kayan a ƙarƙashin yanayin kula da zafi daban-daban. A sakamakon nuna cewa microstructure na 17-4PH karfe bayan bayani jiyya da kuma tsufa a 480 ℃ ne martensite, yayin da cewa bayan tsufa a 550 ℃ ne tempered sorbite. Ƙarfin ƙarfin ƙarfi da ƙarfin samar da ƙarfe na 17-4PH sune mafi girma lokacin da suka tsufa a 480 ℃, amma tasirin tasirin yana da ƙasa kaɗan. Tare da karuwar zafin jiki guda ɗaya, ƙarfin ƙarfe yana raguwa kuma tasirin tasirin yana ƙaruwa lokacin da ya tsufa a 550 ℃. 17-4PH karfe iya samun mafi m inji Properties kamar ƙarfi da tasiri taurin bayan bayani jiyya a 1040 ℃ da tsufa a 550 ℃.

Ana buƙatar ƙayyadaddun buƙatun dacewa na hannayen jan ƙarfe bisa ƙayyadaddun yanayin aikace-aikacen, nau'ikan kaya, yanayin motsi da yanayin aiki.

Halayen Magnesium Alloys da Amfanin Ƙirƙira

Don samfura kamar gidaje masu ragewa waɗanda ke buƙatar rikitaccen tsari, daidaitaccen lissafi, ƙira mai sauƙi, da matsakaici zuwa ƙaramin tsari (musamman akan ƙaramin gefe), ɓataccen simintin kumfa yana ba da mafita mai gasa. Babban darajarta ta ta'allaka ne a cikin 'yantar da 'yancin ƙira (haɗin kai na hadaddun sifofi), haɓaka daidaitattun masana'anta, da raguwa mai mahimmanci a farashin sarrafawa na gaba.

A matsayin maɓalli mai mahimmanci a cikin tsarin watsawa na inji, tsawon rayuwar gears kai tsaye yana rinjayar aiki da amincin duk kayan aikin injiniya. Shot peening, a matsayin na kowa surface ƙarfafa tsari, iya yadda ya kamata inganta saman Properties na Gears. Wannan takarda ta yi nazari sosai kan tsarin tasirin harbin leƙen asiri a tsawon rayuwar gears, yana nazarin alaƙa tsakanin sigogin aiwatar da harbe-harbe, kayan gear, yanayin aiki da tsawon rayuwar kayan aiki, kuma yana ba da tushe na ka'ida da jagora mai amfani don harbi peening ƙarfafa ƙarfafawa da haɓaka rayuwar gears.

Yin amfani da babban ƙarfe na manganese azaman kayan, cikawa da ingantaccen tsari na simintin haƙoran guga an ƙididdige shi ta hanyar software na simintin simintin ProCAST. Sakamakon kwaikwaiyo ya nuna cewa lokacin cika tsarin zubowa yana da ɗan tsayi kuma yawan zafin jiki yana da girma, wanda ke haifar da samuwar babban porosity na raguwa a cikin simintin haƙoran guga. An inganta ma'auni na tsarin zubar da ruwa da tsarin zubarwa kuma an aiwatar da simintin lambobi. Sakamakon ya nuna cewa bayan haɓakar tsari, ingancin farfajiyar simintin haƙori na guga yana da kyau, saurin ƙarfi na ciki yana haɓaka, ƙarancin tsari yana raguwa, kuma an saukar da raguwa.

An bincika tasirin hanyoyin kwantar da hankali daban-daban na jiyya (kayyade ruwa kai tsaye da sanyaya tanderun da ke biye da ruwa) akan microstructure da kaddarorin CD3MWN bakin karfe na super-duplex.

Bari mu yi cikakken kallon ƙa'idodin zaɓin kayan don ɓangarorin kayan aikin jabu da yanayin aikace-aikacen al'ada na kayan daban-daban. Ƙirƙira, a matsayin ɗaya daga cikin manyan hanyoyin ƙirƙira don ɓangarori na kayan aiki, yana da mahimmanci a zaɓin kayan, wanda kai tsaye yana shafar aikin ƙarshe, tsawon rayuwa, farashin sarrafawa, da yuwuwar aikace-aikacen kayan.

Zaɓin Farawa: Idan babu manyan buƙatu na musamman don takamaiman aikace-aikace, matsakaicin ƙarfe na carbon alloy (kamar 40Cr, 42CrMo) kamar quenched da ƙoshin ƙarfe yana da aminci, abin dogaro, kuma wurin farawa mai tsada.