烧结法制备磁性磨料
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摘要
磁力研磨加工技术是一种很有前途的光整加工新工艺,具有设计成本低、加工效率高、操作容易、环境污染低、能源消耗少、容易自动化等优点,因此,磁力研磨加工技术不断获得发展,并在生产中得到广泛应用。而作为该技术磨具的磁性磨料是磁力研磨加工的关键所在,为此,本文分析了磁性磨料磨粒的磨削机理,并在此基础上提出了磁力研磨加工对磁性磨料性能的要求。在对研磨压力的形成、磁性磨料的组成成分、结构形状及磁性磨料的制备方法分析研究的基础上,提出了常压固相烧结制备磁性磨料的方法。
     在传统烧结法的基础上,我们采用高温无机粘结剂替代钛、钼等贵重金属粘结组分,并通过溶胶-凝胶法在铁粉表面包覆SiO2,在无气氛保护的常压烧结电炉中制备了一系列磁性磨料。研究了烧结温度、烧结时间、压制压力、原料配比、铁磁相种类、磨粒相粒径和烧结气氛对磁性磨料性能的影响,确定了最终的实验参数,并在此条件下制备了一系列磁性磨料。采用热场发射扫描电子显微镜(SEM)和X射线能量色散谱(EDS)表征了磁性磨料的形貌和元素组成,采用X-射线衍射仪(XRD)研究了磁性磨料的物相组成,并通过实验对磁性磨料进行了研磨性能测试和耐用度分析。实验结果表明,烧结法制备的磁性磨料主要由α-Fe、Al2O3、Fe2O3、AlFeO3等相组成,其形状多为不规则的棱状结构;磁性磨料具有良好的研磨效果和较长的使用时间,研磨工件的表面粗糙度可达到0.12μm,使用时间可达24 min以上。
     另外,我们以硅铁粉、白刚玉及耐高温无机粘结剂为原料进行了探索实验,研究了烧结温度、烧结时间和压制压力对磁性磨料结合度的影响,采用金相显微镜、扫描电子显微镜和X射线能量色散仪表征了磁性磨料的形貌和元素组成。实验结果表明,烧结温度、烧结时间及压制压力与烧结之后磁性磨料的结合度都有密切的关系。烧结温度越高、烧结时间越长,磁性磨料的结合状况越好,烧结温度不要低于1200℃,烧结时间不要低于5 h,以保证刚玉粉与铁硅粉之间得到良好的结合状态;压制压力有助于硅铁粉与刚玉粉之间的结合状况,成型压制压力越大,结合状况越好。
As a new promising process, magnetic abrasive finishing(MAF) has achieved great development and been widely used due to the low design cost, high finishing efficiency, easy operation, low pollution, low energy consumption, easy automation, etc. As grinding tool, magnetie abrasive is the key of magnetic abrasive finishing, so in the paper we analysed the grinding mechanism of magnetic abrasive particles and based on the work,we brought forward performance requirerment of magnetic abrasive for magnetic abrasive finishing. In the paper, following items on magnetic abrasive were analyzed:grinding pressure, composition, structure, shape and the preparation method of magnetic abrasive, then conventional solid-state sintering method of magnetic abrasive was brought forward.
     In the paper, based on the traditional sintering method, using high-temperature inorganic binder instead of titanium, molybdenum and other precious metals bonded components, and iron powder surface was coated with SiO2 by Sol-gel method, a series of magnetic abrasive was prepared in the absence of climate protection. Then we studied the effect of sintering temperature, sintering time, suppressing pressure, ratio of raw materials, ferromagnetic phase type, abrasive particle size and sintering atmosphere on properties of magnetic abrasive, then the proper experimental parameters were determined, and in this condition, a series of magnetic abrasive was prepared. Thermal field emission scanning electron microscopy and X-ray energy dispersive spectroscopy were used to characterize the morphology and elemental composition, X-ray diffraction was used to study the phase composition. We also test the performance of magnetic abrasive grinding and analysed the durability. Experimental results indicated that, the magnetic abrasive was mainly composed of a-Fe, Al2O3, Fe2O3, AlFeO3, which were mainly irregular polyhedral particles. All the magnetic abrasive prepared had good polishing ability and long using time, and the surface roughness of the grinding sample can reach 0.12μm and the using time is up to 24 min.
     In addition, with ferrosilicon powder, corundum powder and high temperature inorganic binder were used as the raw materials, the magnetic abrasive has been prepared. We studied the influence of sintering temperature, sintering time, suppressing pressure on the binding degree of magnetic abrasive, and optical microscope, scanning electron microscopy and energy dispersive X-ray instrument were used to characterize the morphology and elemental composition. Experimental results show that the sintering temperature, sintering time and suppressing pressure are closely related to the binding degree of magnetic abrasive. The higher sintering temperature or the longer sintering time are, the better combination conditions of magnetic abrasive will be. The sintering temperature should be higher than 1200℃, sintering time should be longer than 5 h, to ensure that corundum powder remained high bond strength with ferrosilicon powder. Suppressing pressure is helpful to the combination state of ferrosilicon powder and alumina powder, the greater suppressing pressure is, the better combination conditions will be.
引文
[1]Shinmura T. Wang Fenghui, Aizawa T. Study On a new finishing process of fine ceramics by magnetic abrasive machining[J]. Journal of Japan Society for Precision Engineering,1993,59(8): 41~45.
    [2]Shinmura T Aizawa T. Development of plane magnetic abrasive finishing apparatus and its finishing performance[J]. Journal of Japan Society for Precision Engineering.1988,54(5): 124~129.
    [3]李益民.磁力研磨法的原理及应用[J].机械工艺师,1990(12).
    [4]金东燮,张国林.磁力研磨加工及其性能[J].电加工,1989,(4):22~26.
    [5]Shinumura. T. Takazawa. K. Study on Magnetic Abrasive Process-Application to Plane Finishing[P]. Bull. Japan Soc. of Prec. Engg.,1985,19(4):289~291.
    [6]安斋正博,等.“磁气研磨用砥粒の新制造技术と(?)の研磨特牲”.生产研究,1991,43(11):479~487.
    [7]安斋正博,等.“磁气を利用した金型曲面の表面仕上”.精密工学会志,1991,57:129~132.
    [8]Shinumura. T. Takazawa. K. And E. Hatano. Study on Magnetic-Abrasive Process-Finishing Characteristics[D].Japan Bull. Japan Soc.Engg.,1984,18(4):347~348.
    [9]进村武男.磁气研磨法的研究[D].精密工学会志,1986,(52):851~854.
    [10]Shinumura. T. Takazawa. K. And Hatano. E. Study on Magnetic-Abrasive Finishing (3rdReport)-Finishing Characteristics Non-ferromagnetic Substances-". J. Of JSPE (in japanese), 1987,53,(9):1440~1446.
    [11]Yamaguchi H., shinmura. T. Joural of the Japan Society for Precision Mngineering,1995,61(7): 996~1000.
    [12]Jain V.K., Kumar P., Behera P.K. and Jayswal S.C.:Wear,2001,250 (1):384~390.
    [13]Yamaguchi H., shinmura T. and Kobayayashi. A. JSME International Series C,2001,44(1): 275~281.
    [14]Fox M., Agrawal K., shinmura T. and Komanduri. R. Ann. CIRP,1994,43(1):181~184.
    [15]Hou Z.B., KOMANDURI R.:Journal of Tribology,1998,120(4)N:660~665.
    [16]陈红玲,张银喜.磁性磨料磨粒的磨削机理研究[J].太原理工大学学报,2000,5(31):562~565.
    [17]周锦进.磁粒加工及电化学磁粒加工[J].电加工,1991(5):27~30.
    [18]肖作义.磁粒研磨加工机理的研究[J].机械制造,2004,42(484):39~40.
    [19]Shinmura T.. Development of spindle— finish type finishing apparatus and its finishing performance using a magnetic abrasive machining process[J]. JSPE,1986 (2):79~84.
    [20]Shinmura T.. Development of a Unit System Magnetic Abraive Finishing Apparatus using permanent Magnets[J]. Bull. Japan Soc. Of Prec.Engg.1989(4):313~315.
    [21]HitomiYamamuchi, Takeo. Shinmura. Study of an internal magnetic abrasive finishing using a pole rotation system Discussion of the characteristic abrasive behavior[J]. Precision Engineering,2000, 24:237~244.
    [22]进村武男.平面磁力研磨装置的开发及其研磨性能.精密工学会志,1988,54:124-148.
    [27]Jenong-Du Kim, Youn-Hee Kang, Young-Han Bee. Development of a magnetic abrasive of jet machining system for precising internal polishing of circular tubes[J]. Journal of Materials Processing Technology,1997(7):384~393.
    [28]Dhirendra Singh K., Jian V. K., Raghuram V., Komanduri R.. Analysis of surface texture generated by a flexible magnetic abrasive brush[J]. Wear,2005,259:1254~1261.
    [29]Jain V. K., Prashant Kumar etc. Effect of working gap and circumferential speed on the performance of magnetic abrasive finishing process [J]. Wear,2001,250:384-390.
    [30]Tsuchimoto M., Demachi K., Itoh I.. Numerical evaluation of uniform magnetic field within superconducting Swiss roll[J]. Physical,2004,412:719~722.
    [31]G.Mamalis A., EManolakos D., Kladas A.G., Koumoutsos A.K.. Physical principles of electromagnetic forming process:a constitutive finite element model [J]. Journal of Materials Processing Technology,2005,161:294~299.
    [32]Shaohui Yin, Takeo Shinmura. Vertical vibration-assisted magnetic abrasive finishing and deburring for magnesium alloy[J]. International Journal of Machine Tools &Manufacture,2004,44: 1297~1303.
    [33]王立鼎,刘冲.微机电系统科学与技术发展趋势[J].大连理工大学学报,2000,4(5):505~508.
    [34]张雷.磁性研磨加工技术[J].电加工,1998(1):38--43.
    [35]李学全,李峻,胡德全,等,磁力研磨技术[J].机械设计与制造工程,2000,29(1):53~54.
    [36]吴石林,金东燮.模具数控磨削技术开发研究[J].哈尔滨理工大学学报,1999,4(2):38~42.
    [37]金东燮,张国林.电解磁力研磨技术的开发及其机理的研究[J].磨料磨具与磨削,1993(2).
    [38]杨曙光.磁力研磨法的应用[J].航空精密制造技术,1993(2).
    [39]王振宁,张学良.数控铣床磁力研磨加工的研究[J].机械加工与自动化,2002(4):18~19.
    [40]李益民.磁力研磨法的原理及应用[J].机械工艺师,1990(12).
    [41]李益民,等.阀芯棱边去毛刺的控制与磁力研磨去除法[J].磨料磨具磨削,1991(2).
    [42]赵玉刚,周锦进.复杂曲面三坐标数字化磁粒光整加工控制系统[J],中国机械工程,1999(1):1~3.
    [43]赵玉刚,周锦进.新型的复杂曲面磁粒光整加工机床[N].机械工程学报,2000(36):100~103.
    [44]赵玉刚.磁粒光整加工技术与复杂曲面数字化仿形磁粒光整加工系统研究[D].大连:大连理工大学,1999(6).
    [45]方建成,金沫吉,徐文骥,等.旋转磁场磁粒光整加工研究[J].中国机械工程,2001(11):1304~1306.
    [46]肖作义,赵玉刚,吴文权.磁力研磨在模具型腔精加工的应用[J].模具工业,2003(1):51~53.
    [47]肖作义.磁力研磨光整加工技术的实验研究[J].模具工业,2004,12:47~50.
    [48]陈红玲,张银喜.磁性磨料磨粒的磨削机理研究[J].太原理工大学学报,2003,31(5):562~565.
    [49]陈红玲,张银喜.磁性研磨加工艺参数的实验研究[J].太原理工大学学报.2003,33(1):16-18.
    [50]Hitomi Yamaguchi, Takeo Shinmura. Study of an internal magnetic abrasive finishing using a pole rotation system Discussion of the characteristic abrasive behavior[J]. Precision Engineering,2000, (24):237-244.
    [51]曹东,朱时珍.磁性磨料的制备[J].机械工程师,2004(5):41-42.
    [52]方建成,金洙吉,徐文骥,等.磁粒性能分析及其应用实验[J].华侨大学学报(自然科学版),2003,24(3):162~164.
    [53]Kiymsby M.D. Magetic Abrasive Finishing. Metal Finishing,1993, (7):21.
    [54]Nalivka G D, et al. Power Material for Magnetic Abrasive Treatment. Porohkovaya Matallurgiya, 1976,15(12):63.
    [55]Liashenco A B, et al. Production of Composite Magnetic Abrasive Materials under Solid-Combustion Condition. Poroshkovaya Metallurgiya,1983,22(9):26
    [56]A. B. Lyashchenko et al.. Poroshkovaya Metallurgiya,1983, (9) 44~48
    [57]Olikes V E, et al. Structure Formation of Magnetic Abrasive Materials Made of High Carbon Steel Alloyed by Carbide giving Elements. Porohkovaya,1983,22(2):76.
    [59]Dyadk E D, et al. Influence of Macrostructure of Magnetic Abrasive Powder on Their Divice & Properties. Poroshkovaya Meatllurgiya,1992,31(7):67.
    [62]Shinmura. T. Yamaguchi H., Study on New Internal Finishing Process by the Application of
    Magnetic Abrasive Machining (Internal Finishing of Stain6less Steel Tube and Clean Gas Bomb), JSME International Journal.38(4):798~804.
    [63]Shinmura. T., Wang F. H.. A New Process for Precision Finishing of Slilicon Nitride Fine Ceramics by the Application of Magnetic Abrasive Machining Using Chromium-oxide Abrasives Mixed with Iron Paricles. Int. J. Japan Soc. Prec. Eng.,1994,28(3):229~230.
    [64]Anzai M.. Sudo T.. Nakazawa T.. Development of Magnetic Abrasives and It's Finishing Characteristics-, Bull. Japan Soc. of Prec.Engg.1985, (3):218~220.
    [65]陈红玲,张银喜,郭燕莹.粘结磁性磨料的研究[J].太原理工大学学报,2001,32(5):533~535.
    [66]潘晶,刘新材,等.粘结Fe+SiC磁性磨料的研究[J].机械工程材料,2001,25(5):26~28.
    [67]曹东,朱时珍.粘结法制备磁性磨料的研究[J].现代制造工程,2004,(2):72~74.
    [68]孟利,阎秋生.粘结磁性磨料制备及其研抛加工研究[J].机床与加工技,2007,36(12):28~31.
    [69]何建平,金学军.氩气保护镍基复合镀层中增强相热稳定性研究[J].南京航空航天大学学报,1996,28(2):219~224.
    [70]廖月明,周锦进.激光烧结磁磨粒相及磁力研磨[J],制造技术与机床,1999,(5):36~38.
    [71]黄文科,郭佳龙.烧结法制作磁性磨粒之研究.中国机械工程学会第十八届全国学术研讨会论文集[C],2001,219~225.
    [72]张银喜,丁艳红,陈红玲,等.热压烧结法制备磁性磨料[P].中国专利,001365738,2001-06-06.
    [73]贺美云.磁性磨料的烧结法制备及其加工特性的分析研究[D].机械工程与自动化,2004,(6):70.
    [74]贺美云,单伟忠,等.烧结磁性磨料和粘结磁性磨料的对比研究[J].机械工程与自动化,2004,(6):61~65.
    [75]金国哲,杨林,刘智.微波烧结法制备磁性磨料的工艺参数,大连工业大学学报,2008,27(4):326~328.
    [76]黄秉麟,伍瑾琛.陶瓷磨具制造.中国标准出版社出版日期:1987年08月页数:624
    [77]Sakka Sumio, Tanaka Yusuke, Kokubo Tadashi. Hydrolysis and Polycondensation of Dimethydiethoxysilane and Methyltriethoxysilane as Materials for the Sol-gel Process[J]. Journal of Non-Crystalline Solids,1985:24~30.
    [78]刘伯元.粉体表面改性[J].塑料加工,2002,37(4):13~20.
    [79]徐立军.曲面数字化磁力研磨加工技术基础研究[D].杭州:浙江大学,2004.

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