|
| ¡¡
|
¡¡¡¡Because Electric Magnetic Lifting
magnet has the control easily, big magnetic field
depth and so on merits, it is widely applied in each
profession at present. But Electric Magnetic Lifting
magnet also has following shortcoming:¢ÙConsuming energy,¢ÚNeeds
the power failure protection,¢ÛHas the magnetic hysteresis,¢ÜThe
unit area suction is small,¢ÝHas temperature rise question
after long time using,¢ÞThe maintenance cost is high,¢ßThe
life is short,¢àTowing line work. The above question
has been the great difficulty puzzled question of
electric magnetic lifting magnet for long time and
does not have the substantive solution throughout.
¡¡¡¡ Enhancing unceasingly along with performance of
the rare earth magnetism material, there are the small
permanent magnetic lifting magnets in the market.
This kind of permanent magnetic lifting magnet has
the very high superficial suction (to be possible
to reach 16~25Kgf/cm2), but this kind of permanent
lifting magnet uses the single axle and the single
magnetic circuit gap magnetic circuit design, therefore
had also decided this kind of permanent magnetic lifting
magnet only has the strong surface magnetic field
strength, but is impossible to have the big magnetic
field depth, also impossible to be applied on the
large-scale hoisting equipment, impossible to be applied
in attracts the scrap steel, is only restricted in
the attracting of light and plane materials, its application
is limit. However, the JQYD series Permanent Magnetic
Lifting magnet is one proprietary product developed
on the patented technology of Mr. Xu Jun Feng (number
of the patent of utility new model: ZL02258371.8;
number of invention patent:02138572.6, international
monopoly main category number: H01F7/02. ). The technical
characteristic is:¢ÙUses the pair (many) the axis,
the pair (many) the gap magnetic circuit design, not
only has the very high surface magnetic field strength,
moreover simultaneously has the suitable magnetic
field depth,¢ÚWith the commercially pure iron shield
magnetic field, causes the magnetic field to be possible
to close to zero magnetic field,¢ÛUses the long-distance
hydraulic control, implements the automated work conveniently.
Therefore,
¡¡¡¡ the JQYD series of Permanent magnetic Lifting Magnet
is possible to substitute comprehensively the electric
magnetic lifting magnet widely.It can apply in lots
of professions such as iron and steel plant, steel
materials storehouse, scrap steel treatment plant,
shipyard, large-scale foundry, heavy duty machinery
factory, harbor wharf and station and so on |
|
|
|
|
