Permanent lifting lifting process to be used for lifting the workpiece and being connected for moving iron block and a cylindrical magnetic materials work. Easy to operate, safe and reliable,
Results compact and lightweight. Widely used in factories, docks, warehouses and transportation industries. Improving the working conditions of loading and unloading operations, improve labor efficiency. In the choice of
Permanent lifting, the need to magnetic sweeper pay attention to the following points:
The first consideration is the safety factor of permanent lifting, lifting only your permanent operational safety is the most important. So we come to a detailed understanding of a
Under the permanent lifting of the safety factor. In fact, the safety factor is to pull-off force size. Permanent lifting and other products primarily to attract hanging steel, mainly in lifting steel rose
The moment, shaking plate in an unstable state, will produce inertial force, this force is much greater than its own weight plates. Our permanent lifting safety factor
Reached 3.5 times, permanent lifting safety factor is higher, the pull-off force on behalf of its greater safety of operation is higher. Thus, the use of my company's permanent
Jacks is the most reliable.
The second is the permanent lifting of the appearance of the structure, the appearance of good quality permanent lifting compact, structured, the appearance of special treatment process, magnetic bar and the surface is not smooth
Rust wear.
The final step is to consider permanent lifting of the internal circuit design, that is, the size of the internal magnetic field, magnetic remanence size and determine the amount of permanent lifting of use
, Magnetic larger remanence more permanent lifting of the use of a long time is longer.
Permanent Magnet
2013年8月18日星期日
2013年8月15日星期四
Separators electrical performance
5.1 solenoids repeated short-time work status of the solenoid duty cycle TD is generally 60%
I.e. TD% = [tp / (tp + tn)] × 100%
tp as working time, tn as rest time.
Ie solenoid is energized to lift the material sent from the destination to the release of material being sucked entire period of time is working time tp, time to return to the original magnetic sweeper position of rest time tn, a cycle of work and rest time.
5.2 the rated continuous power voltage and 60% of the intermittent operation, the solenoid coil temperature rise reaches a stable value, the current time is the thermal stability of the current, the coil current is not higher than the thermal current coil generally does not appear coil burning and insulation down and so on.
I.e. TD% = [tp / (tp + tn)] × 100%
tp as working time, tn as rest time.
Ie solenoid is energized to lift the material sent from the destination to the release of material being sucked entire period of time is working time tp, time to return to the original magnetic sweeper position of rest time tn, a cycle of work and rest time.
5.2 the rated continuous power voltage and 60% of the intermittent operation, the solenoid coil temperature rise reaches a stable value, the current time is the thermal stability of the current, the coil current is not higher than the thermal current coil generally does not appear coil burning and insulation down and so on.
2013年8月13日星期二
magnetic rods - Features
Magnetic wand features are: effective removal of iron poles dense, large contact area, magnetic super. In addition to iron container, can be customized according to user requirements process.
A good magnetic rods should do uniform spatial distribution of magnetic flux lines, the maximum magnetic flux density distribution point as magnetic rods filled the entire root, because the general production is on the move
Commodities transmission lines, magnetic sweeper stick surfaces should be smooth resistance, does not contain environmentally harmful substances, to avoid contaminated material and the environment.
Magnetic rods work environment determines that it must have a certain degree of corrosion resistance, high temperature resistance, and some situations require a relatively strong magnetic induction. By using different
The thickness of the magnetic sheets can get different magnetic induction. Select a different magnetic bar magnets can determine the maximum magnetic flux density and temperature resistance, generally succeed in conventional
∮ 25 magnetic rods to achieve more than 10,000 gauss magnetic induction surface models that require high performance NdFeB magnets. High temperature magnetic bar at a temperature of over 150 degrees
Generally choose samarium cobalt magnets. But do not choose large diameter SmCo magnetic bar, after all, the price is very expensive samarium cobalt, a magnetic wand price reaches tens of thousands of yuan,
The surface magnetic rods and can be adsorbed magnetic induction intensity proportional to the size of the smallest particles, but in the batteries, pharmaceutical and other fields of small iron impurities can also cause a great impact, the
To be used more than 12,000 gauss magnetic roller (∮ 110 - ∮ 220). Other fields can choose low point.
Magnetic rods in contact with the fluid used in the process will be part of the internal magnetic energy irreversible loss, loss of more than 30% of the initial strength of the metal or coated, stainless steel
Pipe rupture when worn, Drawer magnets then need to replace the magnetic rods, and not allow leakage magnet magnetic wand to continue working, magnets are generally more brittle, the surface is also coated with some oil
Material, the environmental pollution is relatively large. Magnetic rods domestic producers generally magnetic rods can work under heavy 1-2 years, 7-8 years working under light load. Mainly used in plastic
, Food, environmental protection, filtration, chemical, electric power, building materials, pottery, medicine, powder, mining, coal and other industries.
Magnetic rods - danger
November 2005, 20-month-old American boy Kenny, at home, playing a product called "MagnetiX" magnetic wand toys made in China, and accidentally swallow from shedding two
Grain beads. Beads though small was able to produce powerful suction, resulting in severe contraction and Kenny twisted bowel, which in turn hinder the blood supply to the hospital five minutes after the declaration of death
Die. Another four children who were wearing beads and clogged lungs and intestinal surgery.
Magnetic rods - Benefits
Children's toys is the use of a plurality of magnetic rods 2 to 3 cm long magnetic beads stick to each other and the corresponding adsorption principle, and thus spell out a variety of rich three-dimensional modeling.
These magnetic bar toys according to specifications size, is mounted in sizes ranging from exquisite box. They are some whole magnetic rods, some in plastic tube inside inlaid with fine
Small stripe, while in the box comes with a lot of the ball for the assembly. According to sales personnel, as magnetic and strong, so the whole magnetic bar is more expensive, the most expensive sold for a few
Hundred dollars. This toy play is simple, shape changing, for improving child mental helpful.
A good magnetic rods should do uniform spatial distribution of magnetic flux lines, the maximum magnetic flux density distribution point as magnetic rods filled the entire root, because the general production is on the move
Commodities transmission lines, magnetic sweeper stick surfaces should be smooth resistance, does not contain environmentally harmful substances, to avoid contaminated material and the environment.
Magnetic rods work environment determines that it must have a certain degree of corrosion resistance, high temperature resistance, and some situations require a relatively strong magnetic induction. By using different
The thickness of the magnetic sheets can get different magnetic induction. Select a different magnetic bar magnets can determine the maximum magnetic flux density and temperature resistance, generally succeed in conventional
∮ 25 magnetic rods to achieve more than 10,000 gauss magnetic induction surface models that require high performance NdFeB magnets. High temperature magnetic bar at a temperature of over 150 degrees
Generally choose samarium cobalt magnets. But do not choose large diameter SmCo magnetic bar, after all, the price is very expensive samarium cobalt, a magnetic wand price reaches tens of thousands of yuan,
The surface magnetic rods and can be adsorbed magnetic induction intensity proportional to the size of the smallest particles, but in the batteries, pharmaceutical and other fields of small iron impurities can also cause a great impact, the
To be used more than 12,000 gauss magnetic roller (∮ 110 - ∮ 220). Other fields can choose low point.
Magnetic rods in contact with the fluid used in the process will be part of the internal magnetic energy irreversible loss, loss of more than 30% of the initial strength of the metal or coated, stainless steel
Pipe rupture when worn, Drawer magnets then need to replace the magnetic rods, and not allow leakage magnet magnetic wand to continue working, magnets are generally more brittle, the surface is also coated with some oil
Material, the environmental pollution is relatively large. Magnetic rods domestic producers generally magnetic rods can work under heavy 1-2 years, 7-8 years working under light load. Mainly used in plastic
, Food, environmental protection, filtration, chemical, electric power, building materials, pottery, medicine, powder, mining, coal and other industries.
Magnetic rods - danger
November 2005, 20-month-old American boy Kenny, at home, playing a product called "MagnetiX" magnetic wand toys made in China, and accidentally swallow from shedding two
Grain beads. Beads though small was able to produce powerful suction, resulting in severe contraction and Kenny twisted bowel, which in turn hinder the blood supply to the hospital five minutes after the declaration of death
Die. Another four children who were wearing beads and clogged lungs and intestinal surgery.
Magnetic rods - Benefits
Children's toys is the use of a plurality of magnetic rods 2 to 3 cm long magnetic beads stick to each other and the corresponding adsorption principle, and thus spell out a variety of rich three-dimensional modeling.
These magnetic bar toys according to specifications size, is mounted in sizes ranging from exquisite box. They are some whole magnetic rods, some in plastic tube inside inlaid with fine
Small stripe, while in the box comes with a lot of the ball for the assembly. According to sales personnel, as magnetic and strong, so the whole magnetic bar is more expensive, the most expensive sold for a few
Hundred dollars. This toy play is simple, shape changing, for improving child mental helpful.
2013年8月12日星期一
magnetic Basics
Magnetic materials is an important foundation for the electronics industry functional materials, widely used in computers, electronics, communications, automotive and aerospace industries and household appliances, children's toys and other daily necessities, as the world economy and the rapid development of science and technology, unprecedented demand for magnetic broad. The development of China's current magnetic ranks first in the world, has become the world's largest permanent magnet material production in the country.
Magnetic
Functional devices used in the magnetic sweeper manufacture of magnetic material called magnetic materials. The classification are: permanent magnet material (also called hard magnetic material), soft magnetic materials, semi-hard magnetic materials, magnetostrictive materials, magnetic thin film, magnetic fluid, etc., they are collectively referred to as functional magnetic material.
Permanent (hard) magnetic materials and soft magnetic materials
Magnetic materials, also known as hard magnetic material when the magnetic field is removed, the material still having magnetism; soft magnetic material when the magnetic field is present, a high magnetic flux density, when the magnetic field removed, the loss of the magnetic materials. This does not refer to a hard and soft on the mechanical properties of the hard and soft, but rather on the magnetic properties of the hard and soft. After literally means applied magnetic magnetized magnetic material to be able to retain their ferromagnetic long (short magnetic), characterized in that the high coercive force. Coercivity magnetic material magnetized later that a residual magnetism after demagnetization (residual magnetic flux density and residual magnetization) of the magnetic field strength is reduced to zero. The soft magnetic material is both easy magnetization of magnetic field, and easy to demagnetization, the low coercivity magnetic material. Refers to the applied magnetic field demagnetization (referred to as magnetic field) after magnetizing the magnetic material, combined with the Drawer magnets of the magnetic field in the opposite direction to decrease the magnetic field.
Bonded permanent
Bonded permanent plasticity refers to the binder material is a blend of the permanent magnetic powder to plastic powder, through a variety of plastic materials molding process to obtain a composite magnetic body. In the whole process of forming the adhesive physical changes occur, with the powder particles together and made of magnet is called a bonded magnet.
Sintered Magnet
Application of powder metallurgy, materials made of powder will burn, molding made of rough, then made of sintered magnets.
Neodymium iron boron (NdFeB)
Is a new kind of magnetic material NdFeB ternary intermetallic compounds, is all magnetic materials magnetic energy per unit volume contains the largest of a permanent magnet material. Made of NdFeB bonded magnet powder with this the magnets can be strong, temperature stable performance, high precision forming of complex shapes without the need for post-processing of parts, and has good corrosion resistance and good toughness, widely used in computer disk drives voice coil motor (VCM), magnetic resonance imaging (MRI) equipment and a variety of audio-visual equipment, microwave communications, magnetic machine (magnetic pump, magnetic valve), household appliances and maglev trains and other fields.
Ferrite
Ferrite is iron oxide (Fe2O3) based oxides of other elements reaction of a ferrous compound.
Calcined ferrite material
Iron oxide red (or iron scale) and strontium or barium carbonate and a small amount of materials, according to a composition ratio after mixing, at a certain temperature below the sintering atmosphere, through a raw material in the solid phase reaction between MO6Fe2O3 (where M as Sr, Ba) ferrite.
Ferrite Materials
Ferrite material is strontium ferrite and barium ferrite, ingredients SrFe12O19 and BaFe12O19. Has a magnetic quality, high cost performance, good stability, is the world's largest amount of magnetic functional materials. Widely used in permanent magnet motors, speakers, and magnetic retention, electronic deflection, etc., including automotive, communications, audio, video recorders, televisions, radios, microwave ovens, refrigerators, magnetic separation equipment, medical equipment, computer peripherals, office automation equipment, children's toys, and many other fields.
Isotropic and anisotropic materials
Permanent magnet materials based on single-domain grain orientation were divided into: isotropic material, rough shape when single-domain grains are disordered; anisotropic materials, grain rough shape when under the effect of the orientation field arrangement is orderly.
Magnetic Recording
The basic principle is that the magnetic field into electrical signals input to the recording head to the coil, so that the gap at the head produce a corresponding change in the magnetic field, if this magnetic recording medium having a magnetic tape at a constant speed immediately adjacent to the head through gap, the magnetic field must be the change magnetization hysteresis and will remain as the input signal corresponding to the track, which is a simple recording process. Conversely, if the magnetic tape after a certain speed is achieved by the reproducing head gap, the magnetic head coil will induce a change in the track corresponding to the electrical signal is amplified and then converted to the original input signal, which is magnetic read out the regeneration process.
Nano-magnetic materials
A nanometer is 10-9 meters middleweight, will nanoscale magnetic material powder whose performance has changed fundamentally, the main applications are: nanocomposite permanent magnetic materials, permanent magnetic materials and soft magnetic materials by mixing powder then After processing, the permanent magnet material can be very high magnetic properties. Also made of powder particles of the material to achieve sub-micron level, with Chengchou structure, excellent performance can be obtained permanent magnet. It can increase the production of magnetic recording materials than dry sound, improving image quality; made of magnetic liquid is a very good sealing material. In addition, you can use magnetic nanomaterials as anticancer drugs magnetic carrier; cell separation medium magnetic materials; copier toner and magnetic ink and magnetic printing.
Magnetic
Functional devices used in the magnetic sweeper manufacture of magnetic material called magnetic materials. The classification are: permanent magnet material (also called hard magnetic material), soft magnetic materials, semi-hard magnetic materials, magnetostrictive materials, magnetic thin film, magnetic fluid, etc., they are collectively referred to as functional magnetic material.
Permanent (hard) magnetic materials and soft magnetic materials
Magnetic materials, also known as hard magnetic material when the magnetic field is removed, the material still having magnetism; soft magnetic material when the magnetic field is present, a high magnetic flux density, when the magnetic field removed, the loss of the magnetic materials. This does not refer to a hard and soft on the mechanical properties of the hard and soft, but rather on the magnetic properties of the hard and soft. After literally means applied magnetic magnetized magnetic material to be able to retain their ferromagnetic long (short magnetic), characterized in that the high coercive force. Coercivity magnetic material magnetized later that a residual magnetism after demagnetization (residual magnetic flux density and residual magnetization) of the magnetic field strength is reduced to zero. The soft magnetic material is both easy magnetization of magnetic field, and easy to demagnetization, the low coercivity magnetic material. Refers to the applied magnetic field demagnetization (referred to as magnetic field) after magnetizing the magnetic material, combined with the Drawer magnets of the magnetic field in the opposite direction to decrease the magnetic field.
Bonded permanent
Bonded permanent plasticity refers to the binder material is a blend of the permanent magnetic powder to plastic powder, through a variety of plastic materials molding process to obtain a composite magnetic body. In the whole process of forming the adhesive physical changes occur, with the powder particles together and made of magnet is called a bonded magnet.
Sintered Magnet
Application of powder metallurgy, materials made of powder will burn, molding made of rough, then made of sintered magnets.
Neodymium iron boron (NdFeB)
Is a new kind of magnetic material NdFeB ternary intermetallic compounds, is all magnetic materials magnetic energy per unit volume contains the largest of a permanent magnet material. Made of NdFeB bonded magnet powder with this the magnets can be strong, temperature stable performance, high precision forming of complex shapes without the need for post-processing of parts, and has good corrosion resistance and good toughness, widely used in computer disk drives voice coil motor (VCM), magnetic resonance imaging (MRI) equipment and a variety of audio-visual equipment, microwave communications, magnetic machine (magnetic pump, magnetic valve), household appliances and maglev trains and other fields.
Ferrite
Ferrite is iron oxide (Fe2O3) based oxides of other elements reaction of a ferrous compound.
Calcined ferrite material
Iron oxide red (or iron scale) and strontium or barium carbonate and a small amount of materials, according to a composition ratio after mixing, at a certain temperature below the sintering atmosphere, through a raw material in the solid phase reaction between MO6Fe2O3 (where M as Sr, Ba) ferrite.
Ferrite Materials
Ferrite material is strontium ferrite and barium ferrite, ingredients SrFe12O19 and BaFe12O19. Has a magnetic quality, high cost performance, good stability, is the world's largest amount of magnetic functional materials. Widely used in permanent magnet motors, speakers, and magnetic retention, electronic deflection, etc., including automotive, communications, audio, video recorders, televisions, radios, microwave ovens, refrigerators, magnetic separation equipment, medical equipment, computer peripherals, office automation equipment, children's toys, and many other fields.
Isotropic and anisotropic materials
Permanent magnet materials based on single-domain grain orientation were divided into: isotropic material, rough shape when single-domain grains are disordered; anisotropic materials, grain rough shape when under the effect of the orientation field arrangement is orderly.
Magnetic Recording
The basic principle is that the magnetic field into electrical signals input to the recording head to the coil, so that the gap at the head produce a corresponding change in the magnetic field, if this magnetic recording medium having a magnetic tape at a constant speed immediately adjacent to the head through gap, the magnetic field must be the change magnetization hysteresis and will remain as the input signal corresponding to the track, which is a simple recording process. Conversely, if the magnetic tape after a certain speed is achieved by the reproducing head gap, the magnetic head coil will induce a change in the track corresponding to the electrical signal is amplified and then converted to the original input signal, which is magnetic read out the regeneration process.
Nano-magnetic materials
A nanometer is 10-9 meters middleweight, will nanoscale magnetic material powder whose performance has changed fundamentally, the main applications are: nanocomposite permanent magnetic materials, permanent magnetic materials and soft magnetic materials by mixing powder then After processing, the permanent magnet material can be very high magnetic properties. Also made of powder particles of the material to achieve sub-micron level, with Chengchou structure, excellent performance can be obtained permanent magnet. It can increase the production of magnetic recording materials than dry sound, improving image quality; made of magnetic liquid is a very good sealing material. In addition, you can use magnetic nanomaterials as anticancer drugs magnetic carrier; cell separation medium magnetic materials; copier toner and magnetic ink and magnetic printing.
2013年7月24日星期三
the use of which materials to extend weak magnetic ore separator drum wear life
Weak magnetic ore separator for particle size below 3mm magnetite, pyrrhotite, roasted ore, ilmenite and other materials wet magnetic separation, but also for coal, non-metallic minerals, building materials
Other materials in addition to iron work. Weak magnetic ore separator magnetic system, using high quality rare earth magnets or ferrite material composite, tube sheet average magnetic induction intensity of 100 ~
600mT. According to user needs, providing downstream, semi-counter, and a variety of different tables and strong magnetic separation. The weak magnetic ore separator has a simple structure, large capacity
Easy to operate, easy to maintain.
Weak magnetic ore separator drum wear life and beneficiation companies, equipment manufacturers and cost efficiency is closely related to ordinary rubber: weak magnetic ore separator is the more traditional
Approach, is currently the most widely used technology. Advantages: low price, easy to operate. Adhesive paste can. Disadvantages: life is short, easy to wear rubber off, affecting mineral production
Efficiency, local wear is not easy to repair vulnerabilities. Ceramic: Ceramics in weak magnetic sweeper ore separator on the application has been more common. Advantages: normal wear life of up to two years, the Construction Department
Li has certain technical requirements, low cost, repair after partial wear. Disadvantages: higher construction, ceramic impact of intolerance. Easy to fall off, high failure rates, the latter dimension
Great care costs. Vulcanized rubber skin. Weak magnetic ore separator device has a magnetic field and high separation factor commotion characteristics of advanced structure, light weight, reliable operation, easy maintenance
. Weak magnetic ore separator is ideal for arid areas, saving water resources, reduce processing costs, for the extraction and use of ultra-poor magnetite has opened up a new way.
Wear-resistant rubber manufacturers use rubber, leather according to the length and diameter of the cylinder in the cylinder package skin thickness of about 3mm-5mm. Disadvantages: wear resistance and service life by
Materials magnetic bar constraints, have a special high-temperature vulcanizing plants and equipment, a large upfront investment, payback period is longer. Damaged beyond repair. Advantages: combined with the cylinder
Strong. Spray paint: wear polyurea, polyurethane, etc., in recent years, emerging technologies. Advantages: the overall effect is good, the theoretical life of up to 18 months, the actual life of 8-12 months
, Local wear easily after repair. The device is ideally suited for arid regions, is the ultra-poor magnetite, river sands exploitation of key equipment, in addition to existing stereotypes products
Can also be designed according to user needs for different magnetic induction intensity of different magnetic materials magnetic separator weak magnetic ore, the company has industrial samples, can provide users with small industrial
Test, the product is mainly applied to the following areas: can be used for low-grade, hard and soft ore pre-job enrichment of iron ore resources, improve quality into the mill, lower processing
Costs. For River placer tailings weak magnetic ore separator.
The ore slurry to flow into the tank after tank, the flow of water to the mine water pipe under the action of a loose mineral particles of the state into the tank to mine. The role of the magnetic field, the magnetic mine
Magnetic materials occur together and form a magnetic flux corporation or the magnetic flux in the group or by the magnetic force of the pulp to the pole movement, and are adsorbed on the cylinder. Go to concentrate magnetic system with cylinder
Weakest at the edge of the mine water discharge under the action of flushing water discharged is discharged into the tank mines fine, if it is full magnetic magnetic roller, brush roll unloading ore is carried out. Non-magnetic
Or weakly magnetic minerals are left in the mine with the pulp slurry discharged outside the tank, that is tailings. Yu made the magnetic washing machine production machine structural characteristics: wet permanent magnetic drum weak magnetic ore separator
Mainly by the cylinder, magnetic system, tank, transmission of four parts. Cylinder by a 2-3mm stainless steel plate welded into a tube, cover the cast aluminum parts, stainless steel screws and cylinder phase
Even. Motor through reducer, drive cylinder for rotary motion.
Since the polarity of the magnetic poles along the circular rotation of the rotation direction is alternately arranged, and in the work is fixed, the magnetic flux in the group or with the cylinder rotates, the magnetic cross
Instead, produce a magnetic stirring phenomenon is mixed in the magnetic flux in a corporation or other non-magnetic gangue minerals in the flip of falling down, eventually being sucked in the cylinder surface magnetic or magnetic lotus group
That is, concentrate. Magnetic system is an open magnetic system, installed in the cylinder. Magnetic block with stainless steel bolts mounted on the bottom plate of the yoke, the yoke extending cylinder axis, the shaft is fixed Shui
Arm. Pulling the crank arm can be adjusted declination magnetic system, can be used after appropriate adjustment lever fixed.
Weak magnetic ore separator is used in the re-use of powdered iron removal mitochondria so weak magnetic ore separator is widely used in recycling, timber, mining, ceramics, chemical
Science, food, and other workshops for particle size below 3mm magnetite, pyrrhotite, roasted ore, ilmenite and other materials wet magnetic separation, but also for coal, non-metallic
Mining, building materials and other materials, iron work, is the industry's most widely used high versatility of the aircraft world. In weak magnetic ore separator for dry magnetic minerals
Magnetic separation processing machinery, as opposed to wet weak magnetic ore separator to be used when sorting mineral liquid as a diluent to improve the separation efficiency, the weak magnetic ore separator will have
Find by drying mineral sorting between the particles can move freely into independent free state, otherwise it will affect the magnetic effect, and even cause the consequences of non-separation.
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