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Study on Sintering Process of Magnetic Abrasive Particles Y.Chen1, a, M.M.Zhang1, b, and Z.Q.Liu1, c 1Department of Mechanical Engineering, University of Science and Technology Liaoning, Anshan, 114051, China acy1234cy@yahoo.com.cn, bzmm870817@163.com, cfocus06@163.com Keywords: Magnetic abrasive finishing, Magnetic abrasive particles, Sintering method, Surface morphology Abstract.
Experimental results and analysis According to the different types of abrasive particles, this paper has study on two experiments of different materials.
Table 1 Preparation conditions of Magnetic Abrasive program raw material Fe particle size: 250μm Al2O3 particle size: 75μm; ZrO particle size: 6.5μm mass ratio Fe + Al2O3 : 4:1 Fe + ZrO : 4:1 binder polyvinyl alcohol + water mixed mode hand-mixed pressing force 50 kN Drying drying time 24h, drying temperature 110 ℃ sintering sintering time 4.5h, sintering temperature 1200 ℃ Experiment procedure: put the reduced iron particles and the abrasive particles into the vessel with the mass ratio of 4:1, and mixed by hand after adding the binder, stirring about ten minutes, then put the bonding materials mixed already to the pressing equipment to press, after that, drying, sintering.
As shown in the Fig.4 (b), through the energy spectrum can illustrate the ferromagnetic particles and abrasive particles are integrated, the iron particle was parceled well by the abrasive particles as a kind of magnetic composite material.
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., wasted fluids, wasted gases and wasted materials, etc. can't be produced except for products), that protect environment, save consumptions of energy and decrease costs of production.
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Welding materials and process parameters.
Welding materials and process parameters.
Welding materials and process parameters.
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Studying on the effect of different potassium fertilizers (KCl, KNO3, KH2PO4, K2SO4) based on pre-development environment friendly seed coating, which using chitosan as the main material.
The one is the science and Technology Fund of the science and Technology Department of Guizhou province with the Project number [2009]2105.
And the other is the Natural Science Fund of Guizhou Province with the number 20090076.
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The main factors that control the rheology of castables are the particle size distribution, the solid concentration, and the nature of the raw-materials and chemical additives present in the system.
Therefore, the right choice of dispersing agents is very important for the systematic development of these materials [6].
The tests were performed in diluted suspensions (30 vol.%) containing the matrix materials.
Corundum-spinel castable were subsequently prepared using white fused alumina as aggregates and other materials as the matrix constituents (as shown in Table 3).
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Kurdyumov Institute for Metal Physics of the National Academy of Sciences of Ukraine, 36 Vernadsky blvd., 03680, Kiev, Ukraine 2 Katholieke Universiteit Leuven, MTM Department, Kasteelpark Arenberg 44, B-3001, Heverlee (Leuven), Belgium a tatiana.kosorukova@gmail.com, bgfirst@imp.kiev.ua, ckoval@imp.kiev.ua, d ivanch@imp.kiev.ua, e jan.vanhumbeeck@mtm.kuleuven.be Keywords: intermetallics, martensitic phase transformation, shape memory behavior, composites Abstract.
High temperature shape memory behavior of Zr-Ni-Co composite material shows improvement in shape recovery comparing to quasibinary intermetallic compounds of ZrNi-ZrCo cross-section.
According to [5], materials, undergoing martensite transformation accompanied by shape memory effect with As temperature (start of the reverse martensite transformation) above 390 K, might be referred to as high temperature shape memory alloys.
Koval, High temperature shape memory alloys problems and prospects, Journal of Intelligent Material Systems and Structures 17 (2006) 1041-1047

It is under the control of the computer management, according to the CAD model, through the accurate accumulation of materials, then manufacturing of prototypes or parts.
(2) The biological properties of the material can be well maintained, and it has more extensive adaptability for materials.
Through a multi-nozzle technology, It can realize the complex heterogeneous material composition gradient; due to the adoption of the extrusion / injection based on the process principle, without the removal of excess material, can realize the complex heterogeneous materials of fine pore structure gradient.
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The materials input to the DC furnace were ilmenite, anthracite, graphite electrode and nitrogen, and the output were titanium slag, pig iron, offgas and dust.
Molar enthalpy of each element and compound of input and output materials are shown in Table 1.
Energy of input materials equals to total energy of output materials and heatloss of the whole DC furnace system.
Because of water existing in raw materials and feeding by shielding of N2, there were contain a little of H2 and N2 in offgas.
Scandinavian Journal of Metallurgy.

These materials offer good weldability due their inherent ductility.
It is thus possible to rebuild lost material onto an existing substrate layer by layer [6].
An advanced process such as LMF technology can only be fully exploited by an interdisciplinary approach and by combining know-how of different areas such as material science/design, process control and automation technology.
Joining by laser welding becomes increasingly important for the realization of novel part manufacturing concepts such modular component design, i.e. the high strength joining of dissimilar materials.
Henderson et al: Science and Technology of Welding & Joining, Volume 9, No 1, February 2004 , pp. 13-21(9) [5] Dae-Young Kim et al: Journal of Eng. for GT and Power, July 2000, Vol. 122 - 457 [6] M.