造纸烘缸用灰铸铁力学性能试验研究  

Experimental research on the mechanical properties of gray cast iron used in paper drying cylinders

作　　者：刘课秀 封小亮 李茂东 马括 李露水 LIU Kexiu;FENG Xiaoliang;LI Maodong;MA Kuo;LI Lushui(Guangzhou Special Pressure Equipment Inspection and Research Institute,Guangzhou 510663,China)

机构地区：[1]广州特种承压设备检测研究院,广东广州510663

出　　处：《物理测试》2022年第4期33-36,共4页Physics Examination and Testing

基　　金：广州市市场监督管理局科技项目(2020kj19)。

摘　　要：为对超长年限服役的灰铸铁造纸烘缸的力学性能状况进行更准确判断,采用不同方法对一台连续服役62年的烘缸灰铸铁材料进行硬度试验和拉伸试验,并对试验结果进行了比对分析。试验结果表明:D型冲击装置里氏硬度计的试验结果与实验室台式布氏硬度计的试验结果存在较大偏差,不宜采用D型冲击装置里氏硬度计进行灰铸铁造纸烘缸的现场检验;G型冲击装置里氏硬度计试验结果与实验室台式布氏硬度计的试验结果相对接近,不同部件的试验结果偏差也存在较大差异;灰铸铁材料的硬度和强度之间并没有明显的线性对应关系,建议可结合显微组织检验等方法对材料性能状况进行综合判断。In order to make a more accurate judgment on the mechanical properties of the gray cast iron paper dryers that have been in service for a long time,different methods were used to conduct hardness tests and tensile tests on a 62-year continuous service dryer gray cast iron material,and the test results perform comparative analysis.The test results show that there is a large deviation between the test results of the D-type impact device Leeb hardness tester and the laboratory bench-top Brinell hardness tester.It is not suitable to use the D-type impact device Leeb hardness tester for the gray cast iron paper dryer on-site inspection.The test results of the G-type impact device Leeb hardness tester are relatively close to those of the laboratory bench-top Brinell hardness tester,and the deviations of the test results of different parts are also quite different.There is no difference between the hardness and strength of gray cast iron materials obvious linear correspondence,it is recommended to combine microstructure inspection and other methods to comprehensively judge the material performance status.

关 键 词：灰铸铁 硬度试验 抗拉强度 

分 类 号：TS734[轻工技术与工程—制浆造纸工程] TG143.2[一般工业技术—材料科学与工程]