Chiyambi cha Sand casting

Kuumba kwa dongo kunkagwiritsidwa ntchito kale ku China kuyambira mu ulamuliro wa Shang (c. 1600 mpaka 1046 BC).Houmuwu ding wotchuka (c. 1300 BC) anapangidwa pogwiritsa ntchito dongo.

Mfumu ya Asuri Senakeribu (704-681 BC) anapanga mkuwa wokulirapo wofikira matani 30, ndipo amati ndiye anali woyamba kugwiritsa ntchito nkhungu zadongo m'malo mogwiritsa ntchito njira ya "sera yotayika".

Ngakhale kuti kale mafumu atate anga anapanga ziboliboli zamkuwa zotsanzira zochitika zenizeni kuti aziike m’kati mwa akachisi awo, koma m’ntchito yawo anatopetsa amisiri onse, chifukwa cha kupanda luso ndi kulephera kumvetsetsa mfundo zimene anafunikira. mafuta ochuluka, phula ndi mafuta ochuluka a ntchito, kotero kuti anapereŵera m’maiko mwao—ine Senakeribu, kalonga wa akalonga onse, wodziwa ntchito zonse, ndinalandira uphungu ndi kulingalira mozama pa ntchitoyo.Zipilala zazikulu zamkuwa, mikango yothamanga kwambiri, monga palibe mfumu ina idapangapo ine ndisanakhalepo, ndi luso laukadaulo lomwe Ninushki adandipangitsa kukhala wangwiro mwa ine, ndipo chifukwa cha luntha langa komanso chikhumbo cha mtima wanga, ndinapanga njira yochitira zinthu. mkuwa ndi kuchipanga mwaluso.Ndinalenga nkhungu za dongo ngati mwa luntha la umulungu….mikango yoopsa khumi ndi iwiri pamodzi ndi ng’ombe yamphongo khumi ndi iwiri zomwe zinali zowumbidwa bwino kwambiri… Ndinathira mkuwa mwa iwo mobwerezabwereza;Ndinapanga zojambulazo mwaluso, ngati kuti aliyense amalemera theka la sekeli

Njira yopangira mchenga inalembedwa ndi Vannoccio Biringuccio m'buku lake lofalitsidwa cha m'ma 1540.

Mu 1924, kampani yamagalimoto a Ford idapanga mbiri popanga magalimoto 1 miliyoni, ndikuwononga gawo limodzi mwa magawo atatu azinthu zonse zoponyedwa ku US.Kuwonjezeka kwa kufunikira kwa makina opangira magalimoto ndi makina opangira makina mkati ndi pambuyo pa Nkhondo Yadziko Lonse ndi Nkhondo Yachiwiri Yapadziko Lonse, kudapangitsa kuti pakhale njira zatsopano zopangira makina komanso makina opangira mchenga.

Panalibe cholepheretsa chimodzi pakupanga mwachangu koma m'malo angapo.Kupititsa patsogolo kunapangidwa pa liwiro lowumba, kukonza mchenga, kusakaniza mchenga, njira zopangira maziko, komanso kusungunuka kwachitsulo pang'onopang'ono m'ng'anjo za cupola.Mu 1912, slinger mchenga anapangidwa ndi American kampani Beardsley & Piper.Mu 1912, chosakaniza choyamba cha mchenga chokhala ndi makasu okwera pawokha chinagulitsidwa ndi Simpson Company.Mu 1915, zoyeserera zoyamba zidayamba ndi dongo la bentonite m'malo mwa dongo losavuta lamoto monga cholumikizira mchenga wowuma.Izi zinakula kwambiri mphamvu zobiriwira ndi zowuma za nkhungu.Mu 1918, zida zopangira zida zopangira zida zankhondo zaku US zidayamba kupanga.M'zaka za m'ma 1930 ng'anjo yoyamba yamagetsi yothamanga kwambiri inayikidwa ku US Mu 1943, chitsulo cha ductile chinapangidwa powonjezera magnesium ku chitsulo chotuwa chomwe chimagwiritsidwa ntchito kwambiri.Mu 1940, kukonzanso mchenga wotentha kunagwiritsidwa ntchito kuumba ndi mchenga wapakati.Mu 1952, "D-process" idapangidwa kuti apange nkhungu za zipolopolo zokhala ndi mchenga wabwino, wophimbidwa kale.Mu 1953, njira ya mchenga wa hotbox yomwe ma cores amachiritsidwa ndi thermally idapangidwa.

M'zaka za m'ma 2010, kupanga zowonjezera zinayamba kugwiritsidwa ntchito pokonzekera nkhungu ya mchenga pakupanga malonda;m'malo mwa nkhungu mchenga kupangidwa kudzera kunyamula mchenga mozungulira pateni, ndi 3D-yosindikizidwa.

Kuponya mchenga, komwe kumadziwikanso kuti sand molded casting, ndi akuponya zitsulondondomeko yodziwika ndi kugwiritsa ntchitomchengangatinkhunguzakuthupi.Mawu oti "kuponya mchenga" angatanthauzenso chinthu chomwe chimapangidwa popanga mchenga.Mchenga castings amapangidwa mwapaderamafakitalekuyitanidwamaziko.Zoposa 60% zazitsulo zonse zimapangidwa ndi mchenga.

Nkhungu zopangidwa ndi mchenga ndizotsika mtengo, ndipo zimakaniza mokwanira kuti zigwiritsidwe ntchito pazitsulo.Kuphatikiza pa mchenga, cholumikizira choyenera (kawirikawiri dongo) chimasakanizidwa kapena chimapezeka ndi mchenga.Chisakanizocho chimanyowa, nthawi zambiri ndi madzi, koma nthawi zina ndi zinthu zina, kuti dongo likhale lolimba komanso kuti dongo likhale lolimba komanso kuti gululo likhale loyenera kuumba.Mchenga nthawi zambiri uli mu dongosolo la mafelemu kapenamabokosi a nkhunguamadziwika kuti abotolo.Themapanga a nkhungundidongosolo pachipataamapangidwa ndi kuphatikizira mchenga kuzungulira zitsanzo zotchedwamachitidwe, mwa kusema mwachindunji mumchenga, kapena mwaKusindikiza kwa 3D.


Nthawi yotumiza: Jun-18-2020
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