Gabatarwa ga Sandan Yashi

An yi amfani da gyare-gyaren yumbu a tsohuwar kasar Sin tun zamanin daular Shang (kimanin 1600 zuwa 1046 BC).Shahararren Houmuwu ding (kimanin 1300 BC) an yi shi ta amfani da gyare-gyaren yumbu.

Sarkin Assuriya Sennacherib (704-681 BC) ya jefa tagulla masu tarin yawa har zuwa tan 30, kuma ya yi iƙirarin cewa shi ne farkon wanda ya yi amfani da yumɓun yumbu maimakon hanyar “ɓataccen kakin zuma”.

Alhali a zamanin da, kakannina sun ƙirƙiro mutum-mutumi na tagulla waɗanda suke kwaikwayi sifofin rayuwa don nunawa a cikin haikalinsu, amma a tsarin aikinsu sun gaji da dukan masu sana'a, saboda rashin fasaha da rashin fahimtar ƙa'idodin da suke bukata. Mai yawa, da kakin zuma da tawul don aikin, har suka jawo rashi a ƙasashensu—Ni Sennakerib, shugaban dukan sarakuna, masanin kowane irin aiki, na ɗauki shawara da tunani sosai a kan yin wannan aikin.Manyan ginshiƙai na tagulla, manyan zakoki masu yaƙe-yaƙe, irin waɗanda babu wani sarki da ya taɓa ginawa a gabana, tare da fasaha na fasaha da Ninushki ya kawo kamala a cikina, kuma a dalilin hankalina da sha'awar zuciyata na ƙirƙira dabara don tagulla kuma ya yi shi da fasaha.Na halitta yumbu molds kamar da allahntaka hankali…. goma sha biyu m zaki-colossi tare da goma sha biyu m bijimin-colossi waɗanda suke cikakken simintin gyaran kafa… Na zuba tagulla a kansu akai-akai;Na yi simintin gyare-gyare kamar gwaninta kamar an auna rabin shekel ne kawai

Vannoccio Biringuccio ya rubuta hanyar yin gyare-gyaren yashi a cikin littafinsa da aka buga a kusan 1540.

A cikin 1924, kamfanin kera motoci na Ford ya kafa tarihi ta hanyar kera motoci miliyan 1, a cikin wannan tsari yana cin kashi ɗaya bisa uku na jimillar yawan simintin gyare-gyare a Amurka Yayin da masana'antar kera motoci ke haɓaka buƙatar haɓaka haɓakar simintin gyaran kafa.Ƙaruwar buƙatun simintin gyare-gyare a masana'antar kera motoci da injina a lokacin da kuma bayan Yaƙin Duniya na ɗaya da Yaƙin Duniya na Biyu, ya zaburar da sabbin ƙirƙira a cikin injina da kuma sarrafa fasahar sarrafa yashi.

Babu matsala ɗaya don samar da simintin gyare-gyare mai sauri amma da yawa.An sami ingantuwa cikin saurin gyare-gyare, gyare-gyaren yashi, hadawa yashi, manyan hanyoyin masana'antu, da saurin narkewar ƙarfe a cikin tanderun cupola.A cikin 1912, kamfanin Amurka Beardsley & Piper ya ƙirƙira slinger yashi.A cikin 1912, Kamfanin Simpson ya sayar da mahaɗin yashi na farko tare da garmaho masu juyawa daban-daban.A cikin 1915, gwaje-gwajen farko sun fara ne da yumbu na bentonite maimakon yumbu mai sauƙi na wuta azaman abin haɗawa ga yashi mai gyare-gyare.Wannan ya ƙaru sosai da ƙarfin kore da bushewar ƙera.A cikin 1918, ginin farko mai cikakken sarrafa kansa don ƙirƙira gurnetin hannu ga Sojojin Amurka ya fara samarwa.A cikin 1930s an shigar da tanderun lantarki mara ƙarfi na farko a cikin Amurka A cikin 1943, an ƙirƙira baƙin ƙarfe na ductile ta ƙara magnesium zuwa ƙarfe mai launin toka da ake amfani da shi sosai.A cikin 1940, an yi amfani da gyaran yashi na thermal don yin gyare-gyare da yashi mai mahimmanci.A cikin 1952, an ƙaddamar da "Tsarin D-tsari" don yin gyare-gyaren harsashi tare da kyau, yashi mai rufi.A cikin 1953, an ƙirƙiri tsarin yashi na hotbox core wanda a cikinsa ake warkewar muryoyin da zafin jiki.

A cikin 2010s, ƙari masana'antu fara amfani da yashi mold shiri a kasuwanci samar;maimakon yashi mold da aka kafa ta hanyar shirya yashi a kusa da wani abin kwaikwaya, shi ne 3D-buga.

Yin simintin yashi, wanda kuma aka sani da simintin yashi, shinekarfe simintin gyaran kafatsari halin ta amfani dayashikamar yaddamabu.Kalmar “simintin yashi” kuma na iya nufin wani abu da aka samar ta hanyar simintin yashi.Ana yin simintin yashi a cikin na musammanmasana'antuake kiratushe.Sama da kashi 60% na duk simintin ƙarfe ana yin su ta hanyar aikin simintin yashi.

Samfuran da aka yi da yashi suna da arha sosai, kuma suna da isassun ƙin yarda ko da don amfanin ginin karfe.Bugu da ƙari ga yashi, mai dacewa mai haɗawa (yawanci yumbu) yana haɗuwa ko ya faru tare da yashi.Cakuda yana da ɗanɗano, yawanci da ruwa, amma wani lokacin tare da wasu abubuwa, don haɓaka ƙarfi da robobin yumbu da kuma sanya jimlar ta dace da gyare-gyare.Yashi yawanci yana ƙunshe a cikin tsarin firam kom kwalayeaka sani aflask.Them cavitieskumatsarin kofaan halicce su ta hanyar daidaita yashi a kusa da samfuran da ake kiraalamu, ta hanyar sassaƙa kai tsaye cikin yashi, ko ta hanyar3D bugu.


Lokacin aikawa: Juni-18-2020
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