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酚脲烷树脂砂在无模复合成形工艺中的应用
Application of Phenolic Urea Alkanes Resin Sand in Patternless Forming Process
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- DOI:
- 作者:
- 邵春艳杨文亮孙亮徐继福
SHAO Chunyan, YANG Wenliang, SUN Liang, XU Jifu
- 作者单位:
- 北京机科国创轻量化科学研究院有限公司
Beijing National Innovation Institute of Lightweight Ltd., Beijing 100083, China
- 关键词:
- 酚脲烷树脂;自重震实工艺;铣削工艺;抗拉强度;
phenolic urea alkanes resin; gravity compaction process; milling process; tensile strength
- 摘要:
- 选用 106~212 μm 水洗砂作为造型材料，酚脲烷树脂为粘结剂，采用自重震实工艺生产砂坯，铣削工艺制备
砂型。结果表明，通过调节催化剂种类和加入量改变，砂型的固化时间变化范围在 5~60 min ，可满足不同节拍的需求；同
时树脂加入量为 1.5%~2.0% 时，砂型的抗拉强度达到 1.8~2.5 MPa 以上，符合铣削砂型的工艺要求。
Using 106~212 μm washed sand as molding material and phenolureane resin as binder, the sand blank was
produced by gravity shock compaction process, and the sand mold was prepared by milling process. The results show that
by adjusting the type of catalyst and the amount of catalyst, the solidification time of sand mold varies in the range of 5~60
min, which can meet the requirements of different beats. At the same time, when the resin content is 1.5%~2.0%, the tensile
strength ofsand mold can reach more than 1.8~2.5 MPa, which meets the technological requirements ofmilling sand mold.