產品介(jie)紹(shao)
為防止(zhi)鑄件產生(sheng)縮孔,縮松,氣孔和裂(lie)紋缺陷,應使其壁厚(hou)均勻,避(bi)免(mian)尖角(jiao)和直(zhi)角(jiao)結構,在(zai)鑄型(xing)(xing)(xing)用型(xing)(xing)(xing)砂中(zhong)加(jia)鋸末,在(zai)型(xing)(xing)(xing)芯(xin)(xin)中(zhong)加(jia)焦炭,以及采(cai)用空(kong)心型(xing)(xing)(xing)芯(xin)(xin)和油砂芯(xin)(xin)等(deng)來改善砂型(xing)(xing)(xing)或型(xing)(xing)(xing)芯(xin)(xin)的退讓性(xing)和透(tou)氣性(xing)。
