Mechanism of the High Efficiency Grinding Fluid Used for Ceramics

2006 ◽  
Vol 304-305 ◽  
pp. 214-217
Author(s):  
Xin Li Tian ◽  
Z.Y. Wu ◽  
Ai Bing Yu
Keyword(s):  
Raman Spectrum ◽  
High Efficiency ◽  
Microstructural Analysis ◽  
Surface Hardness ◽  
Research Direction ◽  
Solid Interface ◽  
Grinding Fluid ◽  
Ceramic Grinding ◽  
Diamond Grain ◽  
Grinding Efficiency

It is an effective method to enhance the engineering ceramic grinding efficiency using the organic grinding fluid added with the long chain alcohol. In the cutting-grinding experiment, the ceramic grinding efficiency was 2.4 times higher than the common grinding fluids. The microstructural analysis and the hardness testing performed for the liquid-solid interface using the Raman Spectrum technology and the nano impression technology found that there were abnormal peaks in the Raman Spectrum of the liquid-solid interface between the ceramics and the organic grinding fluid and the presence of abnormal peaks was familiar with the changing rules of surface hardness. The effect might change the grinding mode of the diamond grain micro-blade in the grinding process, thus to affect the grinding efficiency and the machining quality. It is a research direction to be further discussed.

Study on the High Efficiency Organic Grinding Fluid Used for Ceramic Grinding

2007 ◽  
Vol 280-283 ◽  
pp. 1787-1790
Author(s):  
Xin Li Tian ◽  
Z.Y. Wu ◽  
Zhong Xiang Hu
Keyword(s):  
High Efficiency ◽  
Machining Efficiency ◽  
Chain Alcohol ◽  
Engineering Ceramic ◽  
Grinding Fluid ◽  
Ceramic Machining ◽  
Ceramic Grinding ◽  
Long Chain Alcohol ◽  
Grinding Efficiency ◽  
Long Chain

Based on retrieval for domestic and international literatures about the grinding fluids special for ceramic machining use, this paper put forward a method to enhance the engineering ceramic grinding machining efficiency using the organic grinding fluid added with the long chain alcohol The experiment, performed on the constant force cutter, greatly increased the ceramic grinding efficiency by 2.4 times through the comparative experiment for several normal grinding fluids as well as by adding additives. In addition, this paper conducted the matter structural analysis for the liquid-solid interface using the Raman Spectrum technology and preliminarily discussed the mechanism of this grinding fluid.

Study on Performance and Mechanism of High Efficiency Organic Grinding Liquid for Ceramics with Silicon

2010 ◽  
Vol 431-432 ◽  
pp. 158-161
Author(s):  
Xin Li Tian ◽  
Jun Fei Yang ◽  
Chao Liu ◽  
Fang Guo ◽  
Ai Bing Yu
Keyword(s):  
High Efficiency ◽  
Surface Hardness ◽  
Test Material ◽  
Adsorption Effect ◽  
Solid Interface ◽  
High Efficient ◽  
Grinding Mechanism ◽  
Efficiency Test ◽  
Grinding Efficiency ◽  
Si3n4 Ceramics

This study selected three types of organic substance as the main components of high-efficient organic grinding liquid for grinding ceramics with silicon. The grinding efficiency test was conducted on the basis of self-developed grinding mechanism and the findings indicated that the grinding performance of all these three types of grinding liquid were better than average grinding liquid. With Si3N4 Ceramics as the representative test material, the grinding efficiency can be increased at least 1.37 times and more than twice with the grinding fluid prepared with oleic acid or oleic alcohol. The analysis of liquid-solid interface with the help of infrared spectrum showed that there existed abnormal vibration peaks in the liquid-solid interface between Si3N4 ceramics and grinding liquid with (organic substances)–OOH and －OH under normal temperature, which resulted from the adsorption effect of hydrogen bond generated between organic molecule and Si3N4 ceramics. Under high grinding temperature, the friction chemical reaction took place as the result of the absorption effect and the resultant could not only reduce the surface hardness, but also improve the lubricating effect, thus improving the grinding efficiency and surface quality.

Ti6Al4V Surface Hardness Improvement by Duplex Coating

2013 ◽  
Vol 701 ◽  
pp. 370-374
Author(s):  
Yusliza Yusuf ◽  
Zulkifli Mohd Rosli ◽  
Jariah Mohamad Juoi ◽  
Zainab Mahamud ◽  
Kwan Wai Loon
Keyword(s):  
Microwave Plasma ◽  
Plasma Nitriding ◽  
Microstructural Analysis ◽  
Surface Hardness ◽  
Hardness Measurement ◽  
Compound Layer ◽  
Ti6al4v Alloy ◽  
Process Time ◽  
Wear Properties ◽  
Duplex Coating

Ti6Al4V alloy are among the most widely used materials in engineering applications. This is because their relatively beneficial properties. However, inadequate wear properties of Ti6Al4V alloy have largely constrained the application for this material. In this study, Plasma nitriding of the Ti6Al4V was performed using microwave plasma technique at 600°C for 1hour, 3 hours and 5 hours then followed with deposition of CrN on plasma nitrided samples for duplex coating purposes. Microstructural analysis and hardness measurement revealed that formation of Ti2N and TiN phases indicating the formation of compound layer is observed for substrate nitrided at temperature as low as 600°C 1 hour and a substantial increase on the surface hardness of plasma nitrided Ti6Al4V is observed with an increase of process time. The duplex coating obtained in this study has significant surface hardness property and superior as compared with CrN coatings deposited on as received Ti6Al4V.

The Research Development of Basic Theory in Micro-Forming

2013 ◽  
Vol 850-851 ◽  
pp. 192-195
Author(s):  
Xi Yang Sun ◽  
Dong Mei Li
Keyword(s):  
Size Effects ◽  
Temperature Effects ◽  
High Efficiency ◽  
Low Cost ◽  
Research Direction ◽  
Basic Theory ◽  
Future Research ◽  
Micro Forming ◽  
Increasing Demand ◽  
Important Significance

With the increasing demand for high efficiency, low cost and the bulk, so the production of micro-forming has a very important significance. Firstly, the introduction of micro-forming is introduced in this paper. Then, its basic theory, including size effects and temperature effects, is presented. At last, a future research direction is highlighted.

Electrodeposited CuIn(S, Se)2 films for low cost high efficiency solar cell applications: microstructural analysis

2007 ◽  
Author(s):  
V. Izquierdo-Roca ◽  
J. Alvarez-Garcia ◽  
A. Perez-Rodriguez ◽  
L. Calvo-Barrio ◽  
A. Romano-Rodriguez ◽  
...  
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Low Cost ◽  
Microstructural Analysis

Simulation Experiment of Roll Bending Machine in Valveless Servo System

2012 ◽  
Vol 619 ◽  
pp. 410-414 ◽  
Author(s):  
Yang Cao ◽  
Xiao Yan Tian ◽  
Guo Qing Wu ◽  
Qiao Mei Li ◽  
Yan Hua Wu
Keyword(s):  
Hydraulic System ◽  
High Efficiency ◽  
Simulation Experiment ◽  
Control Strategies ◽  
New Technology ◽  
Servo System ◽  
Research Direction ◽  
Hydraulic Control ◽  
Main Research ◽  
Roll Bending

Valveless servo system is a new technology which is widely used in recent years. Compared to the traditional hydraulic system, valveless servo system has a lot of advantages such as high efficiency, less pollution and saving energy, which will be the main research direction of the hydraulic control in the future. Roll bending machine is a large industrial machine, but the efficiency of existing hydraulic system of roll bending machine is low and the cost of maintenance management is high. Applying valveless system on roll bending machine can overcome these defects. This paper made a study of the control strategies which were about valveless servo system on roll bending machine. And software MATLAB was used to do simulation experiment on valveless servo system. This paper summarized the steady-state error and dynamic characteristics according to output signals in different input signals.

The Blocking Mechanisms and Chemical Modification for Alkane Grinding Fluid Applied for Si3N4 Ceramic Grinding

2010 ◽  
Vol 154-155 ◽  
pp. 569-572
Author(s):  
Zhi Yuan Wu ◽  
Shu Hui Wang ◽  
Xin Li Tian ◽  
Shu Zhang
Keyword(s):  
Chemical Modification ◽  
Film Surface ◽  
Organic Substances ◽  
Si3n4 Ceramic ◽  
Hydrophobic Group ◽  
Adsorption Film ◽  
Hydrophilic Group ◽  
Grinding Fluid ◽  
Blocking Mechanisms ◽  
Ceramic Grinding

A series of experiment were performed to test the cleaning ability of different alkane emulsion for Si3N4 ceramic grinding. The experiment results showed that the adsorption film surface of nonpolar alkane have strong attraction to Si3N4 abrasive dust, which will make abrasive dust to gather at the grinding area and finally led to jam. To add alkane grinding fluid with polar organic substances is beneficial to decrease jam. The best additive for anti block is which integrate hydrophobic group and hydrophilic group, both are indispensable.

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