抄取无石棉密封垫片的打浆设计及性能研究
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摘要
采用抄取法制备无石棉胶乳密封垫片的过程中,纤维的分布形态对垫片性能有很大影响。设计了一个均匀实验表,确定4个自变量以及在自变量范围内的10个水平的工艺设计方案,对所制备的垫片进行了压缩回弹率及拉伸强度性能测试,并采用多重线性回归方法研究了各工艺参数与压缩回弹率及拉伸强度的关系。结果表明:打浆比压、打浆质量分数、打浆频率对垫片的性能影响很大。同时对垫片表面采用电镜测试得到SEM图,从测试结果可以看出,纤维分布形态与打浆工艺参数有着密切的联系。最后采用多目标优化函数对工艺参数进行了优化。
The physical state of fiber had a great influence on the performance of the gasket by the beater-addition process. A uniform experiment table was designed which contained 4 independent variables and 10 level of the process program. In order to study the performance of these gaskets, the compressive property and recovery, tensile strength were experimented. And the method of multiple linear regression was used to study the correlations between the compressive property and recovery, tensile strength and the process parameters. The conclusions can be obtained that the refining pressure, concentration and frequency had a great influence on the performance of the gasket. The SEM figure of gasket surface was tested. It can be seen from the test results that there was close connection between the physical state of fiber and refining process parameters. Finally the multi-objective optimization function was adopted to optimize these parameters.
The physical state of fiber had a great influence on the performance of the gasket by the beater-addition process. A uniform experiment table was designed which contained 4 independent variables and 10 level of the process program. In order to study the performance of these gaskets, the compressive property and recovery, tensile strength were experimented. And the method of multiple linear regression was used to study the correlations between the compressive property and recovery, tensile strength and the process parameters. The conclusions can be obtained that the refining pressure, concentration and frequency had a great influence on the performance of the gasket. The SEM figure of gasket surface was tested. It can be seen from the test results that there was close connection between the physical state of fiber and refining process parameters. Finally the multi-objective optimization function was adopted to optimize these parameters.
引文
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[2]熊浩,夏新兴.非石棉胶乳抄取板中的填料[J].黑龙江造纸,2010(1):33-36.
[3]PAYNE J R,SCHNEIDER R W.Comparison of proposed ASM E rules for bolted fl anged joints[C]//International Conference on Pressure Vessel Technology.ASM E,1996:147-155.
[4]顾伯勤,陈永林,陆晓峰.垫片密封技术研究现状与展望[J].石油化工设备,2001,30(5):41-43.
[5]贾有东,刘美红.抄取无石棉垫片的制备及性能研究[J].新技术新工艺,2014(11):7-11.
[6]刘美红,杨建忠,张椿林,等.非石棉胶乳抄取密封复合材料研究进展[J].玻璃钢/复合材料,2010(1):33-36.
[7]朱磊宁,谢苏江,万风岭.胶乳抄取碳纤维增强无石棉密封材料配方研究[J].非金属矿,2005,28(2):54-57.
[8]刘忠,王萍,赵光磊,等.制浆造纸概论[M].北京:中国轻工业出版社,2007:141-149.
[9]杜鹏.无石棉纤维增强橡胶密封垫片的制备与性能研究[D].上海:华东理工大学,2012.
[10]谢苏江,蔡仁良.无石棉垫片材料基本性能的研究进展[J].化工设备与防腐蚀,2003(6):85-87.
[11]龚学臣.SPSS软件在交互效应方差分析中的应用[J].河北北方学院学报(自然科学版),2015,31(1):19-22.
[12]张炜,李华.微机电系统微弹簧优化设计方法[J].探测与控制学报,2014,36(6):12-14.