The quenching process of garnett wire teeth of metallic card clothing heated by flame was researched by use of 3-D finite element method and the equation of boundary condition was established by making use of a model ...The quenching process of garnett wire teeth of metallic card clothing heated by flame was researched by use of 3-D finite element method and the equation of boundary condition was established by making use of a model of artificial neural network. The transient temperature field, phase transformation in the heating process, the quenching microstructures and the hardness distribution on quenched garnett wire teeth of metallic card clothing were simulated. The result shows that the maximum error of the hardness between the simulative value and the actual measuring value is 8.0% on only one testing point and errors are all less than 3.0% on other testing points.展开更多
The wear mechanism of metallic card clothing,used in textile industry,was analyzed.A fast wear test for metallic card clothing racks was developed,which was used as collecting the wear metal particles.The failure type...The wear mechanism of metallic card clothing,used in textile industry,was analyzed.A fast wear test for metallic card clothing racks was developed,which was used as collecting the wear metal particles.The failure type of card clothing was analyzed by the mean of scanning electron microscopy(SEM)and ferro-spectrum technology.The results show that the main wear mechanism of metallic card clothing is low load and high repetition interval fatigue wear caused by friction force between fiber and metal wire teeth.The appropriate quenching microstructure,which improves the wear resistance of the metallic card clothing rack is also discussed.展开更多
文摘The quenching process of garnett wire teeth of metallic card clothing heated by flame was researched by use of 3-D finite element method and the equation of boundary condition was established by making use of a model of artificial neural network. The transient temperature field, phase transformation in the heating process, the quenching microstructures and the hardness distribution on quenched garnett wire teeth of metallic card clothing were simulated. The result shows that the maximum error of the hardness between the simulative value and the actual measuring value is 8.0% on only one testing point and errors are all less than 3.0% on other testing points.
文摘The wear mechanism of metallic card clothing,used in textile industry,was analyzed.A fast wear test for metallic card clothing racks was developed,which was used as collecting the wear metal particles.The failure type of card clothing was analyzed by the mean of scanning electron microscopy(SEM)and ferro-spectrum technology.The results show that the main wear mechanism of metallic card clothing is low load and high repetition interval fatigue wear caused by friction force between fiber and metal wire teeth.The appropriate quenching microstructure,which improves the wear resistance of the metallic card clothing rack is also discussed.