Mchenga wa Foundry umagwiritsidwa ntchito ngati chinthu chopangira granular poumba mchenga ndi mchenga wapakati pakupanga.Pankhani yogwiritsira ntchito dongo ngati chomangira mchenga, pa toni iliyonse ya ma castings oyenerera opangidwa, m'pofunika kuwonjezera tani imodzi ya mchenga watsopano.Chifukwa chake, mchenga wochuluka kwambiri umagwiritsidwa ntchito popanga mchenga.
M'zaka za m'ma 1700, China idagwiritsa ntchito mchenga wa silika ngati chinthu chomangira kupanga zinthu monga mawotchi, magalasi, miphika ndi zida zankhondo.Komabe, mchenga wambiri wamtunduwu unali mchenga wadongo wokhala ndi mchenga wa silika wachilengedwe, womwe ndi mchenga wamapiri ndi mchenga wa mitsinje, womwe unali ndi pulasitiki wabwino kwambiri ndipo ukhoza kugwiritsidwa ntchito mwachindunji kupanga nkhungu ndi zitsulo.Pambuyo pa castings kulowa m'mafakitale kupanga misa, makamaka pambuyo makina a chitsanzo, yunifolomu dongo munali silika zachilengedwe mchenga ndi osauka, ndi khalidwe la akamaumba mchenga n'zovuta kulamulira, amene sangathe kukwaniritsa zofunika ndondomeko.Chifukwa chake, chomera chamchenga chinayambika kuthana ndi mchenga wachilengedwe wa silika ndi Scrubing, ndikusankha kuti mupeze mchenga wina wa silika.Kupatula apo, mchenga wa silika wopangira umapangidwanso ndi kuphwanya silika.Panthawi imodzimodziyo, imakulitsanso ntchito ndi chitukuko cha mitundu yosiyanasiyana ya mchenga wa si-silicon resin ndi kupanga mapangidwe apamwamba, ndikuyika patsogolo zofunikira zapamwamba za mchenga woponyera, monga ufa wochepa, malire ang'onoang'ono, ndi otsika. kugwiritsa ntchito asidi.Momwemonso, mayiko ena omwe alibe magwero amchenga apamwamba kwambiri a kukula kwa mchenga apanganso ukadaulo wa silika woyendetsa mchenga kuti apititse patsogolo kuchuluka kwa mchenga wa silika.

Mchenga wa Foundry uyenera kukwaniritsa zofunikira izi: ① ukhondo wapamwamba ndi ukhondo, kutenga mchenga wa silika monga mwachitsanzo, mchenga wachitsulo wonyezimira umafunika SiO₂zili pamwamba 90%, sintered kuponyedwa zitsulo mbali amafuna SiO₂zomwe zili pamwamba pa 97%;② mkulu kukana moto Digiri ndi bata matenthedwe;③ Moyenera tinthu mawonekedwe ndi kapangidwe tinthu;④ Osasunthika mosavuta ndi zitsulo zamadzimadzi;⑤ Zotsika mtengo komanso zosavuta kuzipeza.
Kuyambira m'chaka cha 1951, China yachititsa kalembera wa mchenga woyambira motsatizana, koma makamaka ili pafupi ndi mayendedwe akuluakulu ndi mizinda ikuluikulu yamafakitale.Ku Zhelimeng, Inner Mongolia, nkhokwe za mchenga wa silika zimafika mamiliyoni mazana a matani, ndipo mawonekedwe ake amtundu ali pafupi ndi bwalo, ndi SiO.₂zomwe zili ndi pafupifupi 90%, zomwe ndizofunikira kwambiri popanga mafakitale.Mchenga wa m'nyanja ya Jinjiang, Dongshan, Fujian, SiO₂zomwe zili ndi 94 ~ 98%.Pali mchenga wambiri wa Quaternary river and sedimentary silica mchenga ku Duchang, Xingzi, Yongxiu County, Province la Jiangxi.The SiO₂zomwe zili ndi pafupifupi 90%.Ili ndi mchenga wolemera komanso wosalimba ku Guangzhou ndi Hunan.Iye SiO₂zili pamwamba 96%, amene angagwiritsidwe ntchito okhutira chitsulo otsika, oxides zochepa zamchere, yunifolomu tinthu kukula.