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薄壁陶瓷型铸造工艺是将陶瓷型厚度控毛制在2～3mm,并采用金属国外衬套,辅以喷雾冷却等措施.大大提高了铸件凝固时的冷却速度.有效地减少脱碳层,同时细化晶粒,提高了铸件的使用寿食.由于陶瓷型厚度的减薄.大大减少了铸型的脱液收缩及由此而引起的铸型变形和型裂.提高了铸件的精度.应用此工艺成功地试制了汽车万向节热锻模及自行车曲柄辊锻模,工艺简单,成本低,创作周期短.模具使用寿命长.
Thin-walled ceramic casting process is the ceramic thickness control of hair in the 2 ~ 3mm, and the use of foreign metal bushings, combined with spray cooling and other measures greatly improves the casting solidification cooling rate effectively reduce the decarburization layer, At the same time refine the grain, improve the service life of castings.As the thickness of the ceramic thinning, greatly reducing the mold off the liquid shrinkage and the resulting mold deformation and cracking, improve the accuracy of the casting. The application of this technology has successfully trial-produced automobile universal joint hot forging die and bicycle crank roller forging die, which has the advantages of simple process, low cost, short creation cycle, long service life of mold.