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Reliability Analysis for Capstan Turret on CNC Lathe Meng Shua,Shen Gui-xiangb,Zhang Ying-zhi*, c, Zhu Li-huid, Sun Shu-guang e College of Materials Science and Engineering, Jilin University,5988 Renmin Road, Changchun, 130022,China *, c Corresponding author: Zhang Ying-zhi, email: zhangyz@jlu.edu.cn Key words: CNC lathe, capstan turret, fuzzy fault tree, reliability analysis Abstract: Based on failure analysis of CNC lathe capstan turret and building failure tree, according to the fuzzy information provided by the users, engineers and technician, the failure rate is defined as a set of trapezoidal fuzzy number.
Acknowledgements This project was funded by the National Natural Science Fund (51175222).
Science Technology and Engineering,2012,12(28):7184-7188
Journal of Xican Jiaotong University, 2010,44(3):86-89
Fuzzy fault tree analysis of the principal axis of numerical control lathe[J], Journal of JilinUniversity (Engineering and Technology Edition), 2006,36(S2):65-68

Materials And Methods Chemicals and reagents Glucose, Bluestone, Anhydrous sodium sulfite, Tragantine, Potassium iodide, Iodide, Agar, Absolute ethyl alcohol, Sodium thiosulfate, Cattle blood fibrinogen, Thrombin, Qualitative filter paper, Agarose, Bitter salt, Monopotassium phosphate, Peptone and so on.
Experimental material Cordycepsmilitaris(Keep in our lab), bean cake (commercially available), sucrose (commercially available).
Guo, L.L, “Identification of Fibrinolytic Enzyme-Producing Strain and Purification of Fibrinolytic Enzyme,” Journal of South China University of Technology(Natural Science Edition), vol.35, no.4, pp.91-94, october 2007
Han, “Cloning and Expression of Douchi Fibrinolytic Enzyme(DFE) Gene from Bacillus subtilis”, Journal of South China University of Technology(Natural Science Edition), vol.35, no.11, pp.115-119, April 2007
Qiu, “Submerged fermentation of Cordyceps militaris,” Journal of Central South University(Science and Technology), vol.37, no.6, pp.1098-1102, December 2005

Introduction Epoxy or resin could be used as the matrix materials to make inset specimens of small size biological materials for fracture tests [1-2].
However, Epoxy and resin are more or less viscoelastic materials.
This property can improve the accuracy of fracture test of small biological materials preparared by using epoxy with nano particle as the matrix of inset specimens.
Acknowledgements The National Science Council (NSC 100-2221-E-218 -027) and Ministry of Education of Taiwan, R.O.C provided financial support to carry out this research.
Torczon, "Pattern search methods or linearly constrained minimization," Siam Journal on Optimization, vol. 10, pp. 917-941, Jun 6 2000.

Zhuchkov Basic principles for determining the optimal composition of ferroalloys, Materials of the III Republican scientific and technical meeting: Improving the technology of manganese alloys, Tbilissi, (1983) 109-114
[7] Sk Md Hasana, Mainak Ghoshb, Debalay Chakrabartia, Shiv Brat Singha Deveopment of continuously cooled low-carbon, low-alloy, high strength carbide-free bainitic rail steels, Materials Science and Engineering: A, 2020
[8] Rumana Hossain, Farshid Pahlevani, Veena Sahajwalla Surface modification of high carbon steel through microstructural engineering, Materials Characterization, (2019) 116-122
[12] Philip J.Maziasz, Jeremy T.Busby Properties of Austenitic Steels for Nuclear Reactor Applications, Comprehensive Nuclear Materials, (2012) 267-283
[20] P.Bajaj, A.Hariharan, A.Kini, P.Kürnsteiner, D.Raabe, E.A.Jägle Steels in additive manufacturing: A review of their microstructure and properties, Materials Science and Engineering: A, 2020.

The guide bushing is circularly welded with two end segments and middle segment of magnetic material and two non-magnetic materials.
（4） 2 Analysis of the Magnetic Field Influence on the proportional solenoid 2.1 Electromagnetic disturbance effects on soft magnetic materials [5] Soft magnetic materials are considered to be a certain sequence of rows of magnetic dipole.
When Soft magnetic materials are placed in magnetic field, magnetization along the direction of External magnetic field is
The magnetic field intensity inside the soft magnetic materials in steady state will be B
Study of high pressure bi_directional proportional solenoid [J].Journal of Zhejiang University: Engineering Science, 2 (2006),p.322-325

The understanding of copolymerization kinetics and the measurement of monomer reactivity play a quite important role in the area of copolymer materials for both practical application and theoretic studies.
Experimental Materials The monomers, vinylidene fluoride (VDF) and hexafluoropropylene (HFP) and the emulsifier, sodium perfluoroheptanecarboxylate were kindly provided by Shanghai 3F New Materials Co., and used without further treatment.
Xu: Journal of Materials Science Vol. 41(2006), p. 417 [3] A.
Dufresne: European Polymer Journal Vol. 42 (2006), p. 2549 [4] V.V.
Ameduri: Journal of Fluorine Chemistry Vol.126 (2005), p. 575 [9] H.

Particularly, epoxies are being extensively employed as the matrix materials for fibre reinforced composites used for aircraft structural applications.
Experimental Materials.
The mould was left in the oven and allowed to cool gradually to room temperature before the cured materials were removed from moulds.
Kinloch, et al.: The Journal of Adhesion Vol. 79 (2003), p. 867
Kwok: Journal of Materials Science Vol. 33 (1998), p. 2831.

As our main focus is to produce adsorbent material, it is of interest to transform the anodic film to Fe2O3.
Journal of Hazardous Materials. (2012). 211–212(0): p. 317-331
Science of the Total Environment. (2012). 424(0): p. 1-10
Materials Science and Engineering: B. (2013) 178(10): p. 744-751
Applied Surface Science. (2011) 257: p. 3893-3897.

Therefore, the preparation of chitosan derivatives can be of great significance to further modify chitosan chemically, seek for new applications and develop a series of high-tech green and new materials [7-9].
[2]Chen Siquan, Xu Chun and Xiao Wei, Improved Technology of Preparation for O-Carboxymethylation of Chitosan[J], Journal of Guangxi Vocational and Technical College, Page2(6):6-7, 2009
[3]Wang Zhouyu, Sun Zhong, Jiang Zhenju, Syntheses and Superficial Characteristics of Two Kinds of N Acylation Chitosan Derivatives with Different Dissolvabilities [J], Journal of Xihua University, Page 27(4):91-104, 2008
[6]Zhu Huayue, Jiang Ru, Qiang Yongxing, Study on the Absorption and Removal of Protonated Cross-linked Chitosan Granules to Nitrate in Water Body[J], Journal of Anhui Agricultural Sciences, Page 36(7):2919-2921, 2008
[9]Qu Jingnian, Wang Yanqing, Li Qiangguo, Themodynamics Research of Process Which Glycine Amino Acid Protonfy[J], Journal of Hengyang Normal University, Page 22(3):20-24, 2001.

Test Materials Preparation and Microstructure Analysis of Cutting Inserts.
Tool life is the most basic and most important criterion to judge the performance of a cutting insert materials, it is mainly obtained through the tool wear test data.
References [1] Chenguang Lin: Chinese Journal of Rare Metals, Vol.28 (2004), p.762, In Chinese
[2] Chongbin Wei, Xiaoyan Song, Jun Fu, et al: Materials Science and Engineering of Powder Metallurgy, Vol.17(2012), p.315, In Chinese
[3] Shouquan Zhang: Materials Science and Engineering of Powder Metallurgy, Vol.14 (2009), p.237, In Chinese