Sand belt joint requirements
From the method of material mechanics analysis of dangerous section, it can be seen that for a circular sand belt, the joint part is the weak link, which reflects the main defect of the sand belt. If the joint is thicker than other parts, this not only affects the flexibility of the sand belt, but also causes impact on the contact wheel or grinding plate, leaving periodic grinding vibration marks on the workpiece. If the tensile strength of the joint is not enough, it is possible to break from the joint during machining. If the joint uses a binder sensitive to hot media, it may also break.Therefore, the sand belt has the following properties.
1. High tear resistance, namely tensile strength and shear strength
2. High heat resistance and corrosion resistance of medium
3. The thickness of the joint should not differ much from the rest of the joint, especially the fine-grained sand belt should have higher requirements
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