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青岛翰昌讲述连续搅拌混砂机中流控系统的应用
Hachieve| Time2013/1/26 15:36:29
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化学工业的发展使铸造上采用,树脂做型芯黏结剂成为可能,这是铸造制芯工艺的一大变革。这种工艺具有硬化速度快、生产率高、节约能源、型芯质量好、溃散性好、便于清理等特点,是机械自动化流水线制芯生产中很有发展前途的新工艺。冷硬树脂砂是采用合成树脂做黏结剂靠催化剂的作用在常温下发生化学反应而固化型芯的工艺,它不需要加热就能自行硬化。自硬砂混制用连续搅拌混砂机是制备型砂流水线中不可缺少的设备。合适的混砂机,正确的加料顺序和适当的混砂时间直接影响型砂质量。

1在混制型砂过程中达到的基本要求为:
1)使型砂中各组成部分:如新旧砂,黏结剂,固化剂等均匀混合;
2)黏结剂有效黏附在砂粒表面;
3)作为流水线中的连续式混砂机在保证混砂质量的前提下提高生产率。


2 结构特点及功能连续式流态混砂机有几大基本组成部分:
1)输送搅拌推进器
2)固体材料定量给料装置
3)液体材料定量给料装置
4)气控及电控部分


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