我厂生产锡青铜、磷锡青铜套筒(见图1)长期以来废品率高达70％。虽然对浇注工艺迸行了多次改进,但收效不大。后来采用炭精铸型、底雨淋式浇注系统,获得了表面光洁、无气孔、组织致密的铸件。下面介绍一下用炭精铸型浇注ZQSn10-1套筒的试验过程。 I plant tin bronze, tin-bronze sleeve (see Figure 1) for a long time the rejection rate of up to 70%. Although many improvements have been made to the casting process, it is not very effective. Later, the use of carbon-casting, rain shower at the end pouring system, access to a smooth surface, no pores, dense tissue castings. The following describes the use of carbon casting casting ZQSn10-1 sleeve test process.