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Pressure Ratings and Design Guidelines for Continuous Cast Ductile Iron in Hydraulic Applications

机译：液压应用中连铸球墨铸铁的压力额定值和设计指南

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摘要

The methods for determining pressure ratings in components within a hydraulic circuit are defined by NFPA standard T2.6.1, R1-1991. This standard requires 2 separate tests: A burst test to determine the ultimate allowable stress and an impulse test to validate the fatigue strength of a component under cyclical loading. In this study, the pressure rating for continuously cast ductile iron bar stock was determined using the guidelines established in T2.6.1 utilizing test manifold blocks consisting of two drilled ports, one under hydraulic pressure and the other open to the atmosphere. This report contains the results of the pressure rating validation and plotting of the fatigue data for 1045 plain carbon hot rolled steel and ASTM A536 grade 65-45-12 continuous cast ductile iron.
机译：NFPA标准T2.6.1，R1-1991定义了确定液压回路内各部件压力额定值的方法。此标准需要进行2个单独的测试：爆裂测试（用于确定最终允许应力）和脉冲测试（用于验证部件在周期性载荷下的疲劳强度）。在这项研究中，使用T2.6.1中建立的指导原则确定了连续铸造球墨铸铁棒材的压力等级，该测试歧管块由两个钻孔端口组成，一个在液压压力下，另一个在大气中。该报告包含1045普通碳素热轧钢和ASTM A536 65-45-12级连铸球墨铸铁的压力等级验证结果和疲劳数据绘图。

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