連続搬送型HGMSに関する基礎的研究
原理と粒子の移動速度 (第1報)
1988 年 104 巻 1200 号 p. 83-88
詳細
1988 年 104 巻 1200 号 p. 83-88
A ferromagnetic wire charged with alternating current in magnetic field (Ho) perpendicular to an axis and with the overall gradient along it's axis (dH/dx) is horizontally vibrated by electromagnetic force. The wire and the magnetic particles captured on it move relatively and the friction between them are reduced. The magnetic particles are transported to the place of the strongest magnetic field by magnetic force (Fmx) and deposit there. When the upward magnetic force (Fmu) acting the particles becomes weaker than gravity (Fg), the particles fall apart from the wire.
On the basis of the above-mentioned principle, single wire experiments were conducted. The results obtained were as follows;
(1) As particles were transported in state of blocks, the moving velocity (Vp) was larger than the value calculated about one particle.
(2) The moving velocity of particles were proporsional to wire amplitude (Y). When the wire fixed on both sides, therefore, is vibrated in first mode the paticles are transported more rapidly in central part than in the side.
(3) Wire amplitude is proportional to current; therefore the moving velocity of the particles is also proportional to it.
(4) The results of calculation indicated that the thickness of deposit layers (r) which the particles fall apart from the wire could be predicted by the deposit layer model.
