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在化工机械中可用搪瓷釉的低碳结构钢制造零件,这就可以大大降低机器的成本。但是搪瓷制品的表面尺寸精度不高,想把它用作配合零件就受到了限制。存在着一种看法,认为磨削加工搪瓷零件会使瓷釉层出现大量裂纹,一直磨削到金属胎上,从而急剧降低其抗腐蚀性能。但是通过研究发现,在金刚砂磨削过程中瓷釉表面发生很大的塑性变形,同时也出现脆性损坏,形成大小裂纹。但由于搪瓷中有许多小汽泡,因此有力地阻止了裂纹的扩展。试验表明:金刚石磨具可
Enamel glaze can be used in chemical machinery in the manufacture of low carbon structural steel parts, which can greatly reduce the cost of the machine. However, the surface of the enamel products, dimensional accuracy is not high, want to use it as a part with the restrictions. There is a perception that grinding enamel parts will cause a large number of cracks in the enamel layer, has been grinding to the metal tire, which drastically reduces its corrosion resistance. However, it has been found through research that a great plastic deformation occurs on the surface of the enamel during the emery grinding, and brittle damage also occurs to form the size cracks. However, due to the many small bubbles in the enamel, the crack propagation is strongly prevented. Test shows that: diamond abrasive can be