Karfe Mai Sanyi
Ƙarfe-ƙarfe mai sanyi yana nufin nau'ikan bayanan ɓoyayyiyar ɓangarori daban-daban waɗanda aka yi daga ƙarfe mai zafi ko mai sanyi a ƙarƙashin sarrafa matsi a zafin daki.Har ila yau, an san shi da baƙin ƙarfe mai bango, wani nau'in ƙarfe ne na ginin ginin haske.Sama da shekaru 100 ana kera karfen da aka yi sanyi, kuma an kera shi ne a kan injin guda daya tare da lankwasa.A cikin 1910, Amurka ta fara gina na'ura mai ci gaba da yin nadi na farko.Bayan 1960, ƙarfe mai sanyi ya haɓaka cikin sauri.A cikin 1989, abin da ya fitar a duniya na shekara-shekara ya kai tan miliyan 8, tare da fiye da nau'ikan 10,000 da ƙayyadaddun bayanai.Samuwar karafa mai sanyi a kasashen da suka ci gaba a masana'antu ya kai kusan kashi 5% na adadin karfen da ake fitarwa.Kasar Sin ta gina yankin samar da karfe na farko a Shanghai a shekarar 1988. A karshen shekarun 1980, suna da raka'a sama da 100 da kuma fitowar shekara-shekara fiye da 200,000 na cold-kafa.
Ƙarfe mai sanyi wani nau'i ne na ɓangaren tattalin arziƙi, ƙarfe na bakin ciki mai nauyi mai nauyi, wanda kuma ake kira ƙarfe mai firiji ko ƙarfe mai sanyi.Ƙarfe da aka yi da sanyi shine babban abu don yin sifofin karfe mai haske.Yana da sassa daban-daban na matsananci-bakin ciki, ma'ana da hadaddun sassan giciye waɗanda ba za a iya samar da su ta hanyar mirgina mai zafi ba.Idan aka kwatanta da karfe mai zafi, a cikin yanayin yanki guda ɗaya, radius na gyration za a iya ƙara da 50% zuwa 60%, kuma lokacin inertia na sashin za a iya ƙara ta 0.5 zuwa 3.0 sau, don haka za a iya amfani da ƙarfin kayan aiki mafi dacewa;(Wato, tsarin karfe da aka yi da I-beam na gargajiya, karfen tashar, karfen kusurwa da farantin karfe) na iya adana kusan 30% zuwa 50% na karfe.A wasu lokuta, adadin ƙarfe da aka yi amfani da shi a cikin tsarin ƙarfe mai sanyi yana daidai da na ƙarfafa tsarin siminti a ƙarƙashin yanayi guda, wanda shine sashin tattalin arziki.
Karfe mai sanyi yana da fa'ida iri-iri, kuma galibi ana amfani da shi don kera sassa na tsari da sassa na taimako a sassan samarwa kamar gine-gine, motocin titin jirgin kasa, motoci, da jiragen ruwa.
Akwai nau'ikan ƙarfe masu sanyi da yawa, waɗanda aka raba su zuwa buɗe, rufaffiyar rufaffiyar kuma rufaffiyar sifofin giciye.Babban samfuran sune sanyi-kafa tashar karfe, karfe na kusurwa, karfe mai siffar Z, farantin karfe mai sanyi mai sanyi, bututu murabba'i, bututu mai rectangular, bututun ƙarfe na musamman mai walƙiya lantarki, mirgina ƙofar rufe jira.Karfe mai sanyi gabaɗaya ana samarwa yana da kauri na 6mm ko ƙasa da haka kuma faɗin 500mm ko ƙasa da haka.Abubuwan da aka fi amfani da su a cikin ƙasarmu sune daidaitattun kwana karfe (tsayin ƙafa 25 ~ 75mm), ƙarfe na ciki na curling karfe (tsawon ƙafar ƙafa 40 ~ 75mm), karfen tashar (high 25 ~ 250mm), tashar tashar curling ta ciki (high 60 ~ 250mm). curling karfe mai siffar Z (100 ~ 180mm high) da fiye da 400 dalla-dalla da iri.Ana amfani da samfuran sosai a cikin ma'adinai, gini, injinan noma, sufuri, gadoji, sinadarai, masana'antar hasken wuta, lantarki da sauran masana'antu.
Ƙarfe mai sanyi shine babban kayan aikin ƙarfe na ƙarfe mai haske, kuma an yi shi da faranti mai sanyi ko ƙwanƙarar ƙarfe.Kaurin bangon sa ba za a iya yin bakin ciki kawai ba, har ma yana sauƙaƙa tsarin samarwa da haɓaka haɓakar samarwa.Yana iya samar da bayanan martaba daban-daban da ƙera ƙarfe masu sanyi na kayan daban-daban tare da kaurin bango iri ɗaya, waɗanda ke da wahalar samarwa ta hanyoyin jujjuyawar zafi gabaɗaya, amma tare da hadaddun sifofin giciye.Bugu da ƙari, ana amfani da shi a cikin gine-gine daban-daban, ƙarfe mai sanyi kuma ana amfani da shi sosai wajen kera motoci da kera injinan noma.Akwai nau'ikan karfe masu sanyi da yawa, waɗanda aka raba zuwa buɗe, rufewa da rufewa bisa ga sashe.Bisa ga siffar, akwai sanyi-kafa tashar karfe, kusurwa karfe, Z-dimbin yawa karfe, square tube, rectangular tube, musamman-dimbin yawa tube, mirgina kofa, da dai sauransu The latest misali 6B/T 6725-2008 ya kara da cewa rarrabuwar ƙarfi na samfuran ƙarfe da aka yi sanyi, ƙara ƙarfe mai kyau, da haɓaka ƙayyadaddun alamomin ƙima don ƙayyadaddun kayan aikin injin.
