选用316L不锈钢粉为原料、海藻酸钠为分散剂、明胶为粘结剂，研究了固相、分散剂和粘结剂含量对浆料的流动性以及凝胶注模成型生坯抗弯强度的影响。结果表明：当pH值为7、固相体积分数为56％、分散剂质量分数为1．0％、粘结剂质量分数为0．8％时，浆料的黏度小于l000MPa·s，按此工艺参数制备的生坯在室温下干燥后，其抗弯强度可达到3．6MPa。
The slurry was prepared by using 316L stainless steel powders as raw material, sodium alginate as dispersant and gelatin as agglomerant, the effects of solid content, dispersant content and agglomerant content on fluidity of the slurry and bending strength of the gelcasted green body were studied. Results show that the viscosity of slurry was smaller than 1 000 MPa s when pH value of slurry was 7, solid content ratio was 56 vol%, dispersant ratio was 1. 0 wt%, agglomerant ratio was 0. 8 wt% and the bending strength of the green body prepared according to above parameters could reach 3. 6 MPa after being dried at room temperature.
参考文献
| [1] | H. Akhondi;E. Taheri-Nassaj;H. Sarpoolaky .Gelcasting of alumina nanopowders based on gelation of sodium alginate[J].CERAMICS INTERNATIONAL,2009(3):1033-1037. |
| [2] | 张建伟,江开勇,王霏.凝胶注模成型用316L不锈钢浆料的制备[J].机械工程材料,2009(10):86-89. |
| [3] | 谢志鹏,黄勇,陈亚丽,杨金龙.酶催化明胶原位凝固成型陶瓷坯体的研究上[J].硅酸盐学报,1999(05):527-532. |
| [4] | 宋贤良 .利用淀粉原位凝固胶态成型高性能陶瓷的研究[D].华南理工大学,2003. |
| [5] | 刘卫华,贾成厂,史延涛.高碳钢凝胶注模成形工艺[J].北京科技大学学报,2006(04):361-364. |
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