Distinguish whether the pulley is good or bad
2022-11-23
The main production process of the standard pulley is mainly the casting, so the question gradually arises is whether the materials used for mold opening are particular, and whether the quality and quality of the pulley are affected?
It must have an impact. The materials that are the first to make abrasives are sea sand and river sand. What is the difference between sea sand and river sand? The belt pulley surface cast with river sand mold will have very shallow air holes, which can not be treated during the final surface treatment, so it will be difficult to break the belt pulley when it is used.
The sea sand is very fine sand salvaged from the shallow sea, so the river sand is picked up from the river. The use of sea sand for belt pulley molding is more and more superior than river sand. The fineness of sea sand makes the surface smoothness of molten iron after being injected into the abrasive tool better than river sand. However, the cost of sea sand will be much higher than that of river sand.
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2022-11-23
2022-11-23
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