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 Posted: Tue 18:49, 04 Jan 2011 Post subject: ugg prezzo Gravitational separation SHS ceramic-li |
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Gravitational separation SHS ceramic-lined composite pipe prepared by the thermodynamic calculations
Ceramic layer has low porosity, high density, combined with the brass, high strength, wear resistance and corrosion resistance is good. Will be applied on the mold tube, the use of safe and reliable service life than ordinary copper increased by 1.5 to 2.0 times. References: [1] Xu Xin, Xie Ye, Sun Shiqing. A centrifugal SHS synthesis of ceramic-lined metal tube Progress EJ3. Metallurgy and Energy,[link widoczny dla zalogowanych], 2000,19 (1): 50. WatanabeY, YamanakaN, FukuiY. Controlofcompositiongra-dientinametalceramicfunctionallygradedmaterialmanufacturedbythecentrifugalmethod [J]. Composites, 1998,29 A (5 ~ 6): 595. Odawara repair, pool standards. Centrifugation at, L, i, y} b method for the manufacture of composite structural tubes [J]. Japan Institute of Metals, 1981,45 (3): 316. SchubertWD, NeumeisterH, KingerG, eta1. Hardnesstotough-nessrelationshipoffine-grainedWC-Cohardmetals [J]. IntRe-fractoryMetalsandHardMater. , 1998,16 (2): 133. Song Weixi. Metallurgy EM]. Beijing: Metallurgical Industry Press, 1980,478. . One (on the next page 27) is difficult to fully solve the problem of large-diameter pipe of the burn. 3 Install the cores of filler in order to reduce the amount of preparation methods, the paper design of a bending center in the cores of the method of installation shown in Figure 3, so by reducing the fill volume to reduce the fill volume. I barrel according to the critical ratio. 27-0.5627 fill volume calculations,[link widoczny dla zalogowanych], and then packing density of a 1.3g/cm. Computing cores in diameter, the results shown in Table 1. Table 1 Size and measurement of the elbow to the face size calculated size center bore diameter pipe wall thickness of the quality of packing quality wick diameter / mm/g/g205I209113101.45.83.3651.89349.39211l212112.810Z5.43.3551. 88853.05 successfully prepared by this method, diameter of 114cm ceramic lined composite pipe, as shown in Figure 4. 4 Conclusion (1) by gravity separation SHS ceramic-lined composite pipe prepared, there is the critical tube than I z. When z is greater than the actual barrel than when it is, elbow easy to burn, than it is, the normal combustion. (2) the increase in pipe wall thickness used to add diluent and method of preparation and elbows due to suppression of the requirements of purity, it is difficult to solve large diameter ceramic-lined composite pipe prepared when the burn problem. Figure 3 Figure 4 Schematic diagram of the new preparation method for preparation of the ceramic-lined pipe (3) large diameter pipe used in the cores of the core method of installation of good quality can be prepared by the ceramic-lined pipe. References: [1] Li Dongli, Xia Tiandong. NazB4O centrifugal SHS ceramic-lined composite steel structure and properties [J]. Thermal processing technology, 2000, (6): 18. E23 Xiatian Dong, Lidong Li, Zhao Wenjun, et al. cr03 densification of ceramic composite steel and mechanical properties [J]. Thermal processing technology, 2000, (2): 30. [3] Ministry of Metallurgical Industry Information Standards Institute. National \Yongjia County Fair released the second high-tech achievements, Yongjia County, 2001. E43WangJianjiang,[link widoczny dla zalogowanych], WenJinhua, ZhaoZhongmin, eta1. TheDesignandApplicationofAutomationEquipmentforProducingSHSCurvedCeramic-LinedCompositePipes [z]. 1Sino-RussianWorkshoponSHS - ProgressofSHSFacingaNewMillennium, Beijing,[link widoczny dla zalogowanych], 2000,[link widoczny dla zalogowanych],9. E51 Yeda Lun. Practical Inorganic Thermodynamic Data Manual [M]. Beijing: Metallurgical Industry Press, 1981. . A
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