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Application of Metal Powder Metallurgy Technology in Prepartion of Friction Materials of the Railway Vehicles SHANG Feng1,a ZHOU Hai-xia2,b QIAO Bin1,c Li Hua-qiang1,d and HE Yi-qiang1,e 1School of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang Jiangsu 222005, China 2College of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China ashf184518@163.com, b waihou295@163.com, cQiao6636@126.com, dlhq6729@163.com, eant210@126.com Key words：Powder metallurgy; Railway transport; Friction materials Abstract：With the speed up of the train, higher performance demands are put forward to the materials which have friction function.
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Composite wicks are made of two or more materials or its layer configurations.
The familiar wick materials are copper, stainless steel etc which poses the capillary driving force.
The type of nano materials used to enhance the thermal conductivity is the ability of material to transfer heat which depends on its volume added with base fluid.
The temperature reduction at the evaporator was essential and is obtained with various temperature rise depends on the Nano materials used.
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The value of strain is negative in machined all of materials.
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This work used tilapia scales as raw materials, to prepare a new type of adsorption material with large adsorption capacity, low-cost, high security to extract and separate EGCG.
Experimental Materials.
Then, the effect of the adsorption materials produced by different conditions determined by adsorption tests based on a batch reactor that 0.5g of the adsorption materials infused with 7mL of EGCG solution (0.004mol/L) at room temperature(25℃) was oscillated at 200r/min for 40min.
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When raw materials ratio is 0.8:1, all the non-APP V peaks are weak.
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Experimental Analysis Materials selection.
In the single combination case, since the combined materials are relatively thinner, the sound wave propagation through the materials quite similar to the uncombined material.
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Carman studied nonlinear constitutive relations for magnetostrictive materials [3].
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This research leverages computer-aided design, artificial intelligence and materials science advancements to develop an innovative software tool that integrates expert knowledge, and best practices, for inland vessel welding.
§ Electrode Type and Size: Different electrodes are suited for different materials and welding positions.
Journal of Marine Science and Engineering, 8(6), 454 (2020) [5] Liao, P, Guixiong, L.
Underwater laser welding/cladding for high-performance repair of marine metal materials: A review.
Chinese Journal of Mechanical Engineering, 35(5), 1-19, (2022) [10] Yongtai K., Jaweoong K., Sungwook K., A Study on Welding Deformation Prediction for Ship Blocks Using the Equivalent Strain Method Based on Inherent Strain, Journal of Applied Sciences, 9(22), (2019) [11] Navid A., Mehdi I., Armin R.D., A study on the effect of welding sequence on welding distortion in ship deck structure, Engineering & Technology Journal, 15(2):1-13, (2019)

Experiment Materials.
Journal of inspection and quarantine, 2011, 21(2):46-49
Journal of inspection and quarantine, 24(1):38-40
Chinese Journal of food hygiene, 2013,25(1):12-15
Science ang Technology of Food Industry, 2011,32(11):457-458