将精密铸造件从铸(zhu)(zhu)(zhu)型中(zhong)取出,清(qing)除掉本体以外的多(duo)余部(bu)分(fen),并打(da)磨精整铸(zhu)(zhu)(💎zhu)件(jian)(jian)内外表面的过程(cheng)。除芯和(he)表面清(qing)理分(fen)为干法和(he)湿法两类(lei)。干法清(qing)理是利用机(ji)械设备(bei)对铸(zhu)(zhu)(zhu)件(ꦫjian)(jian)进行清(qing)理。所用设备(bei)简单、生(sheng)产(chan)效率较高、对不同类(lei)型铸(zhu)(zhu)(zhu)件(jian)(jian)有较大(da)的适应性,和(he)既能除芯又能有效清(qing)理表面的优点。缺点是设备(bei)运转中(zhong)往往粉尘(chen)飞扬、噪声(sheng)较大(da)、污(wu)(wu)染环境。湿法清(qing)理没有粉尘(chen),但因(yin)用水(shui)(shui)(shui)(shui)作介质,铸(zhu)(zhu)(zhu)件(jian)(jian)表面容易锈(xiu)污(wu)(wu)。作业过程(cheng)中(zhong)产(chan)生(sheng)大(da)量污(wu)(wu)水(shui)(shui)(shui)(shui)和(he)带水(shui)(shui)(shui)(shui)泥沙(sha),带来了砂子和(he)水(shui)(shui)(shui)(shui)的再生(sheng)及污(wu)(wu)泥处理等问题。