The design of magnetic lock (or electromagnetic lock) is the same as that of electromagnet. It uses the principle of electro-magnetic. When the current passes through the silicon steel plate, the electromagnetic lock will generate a strong suction force to hold the adsorption iron plate tightly to achieve the effect of locking the door. . As long as the small current electromagnetic lock will generate great magnetic force, the access control system that controls the electromagnetic lock power supply will identify the personnel and then turn off the power, and the electromagnetic lock will lose its suction to open the door. Because the electromagnetic lock has no complicated mechanical structure and the structure of the bolt, it is suitable for the access control of the escape door or the fire door. The interior is protected by a potting epoxy resin.
We know that each magnet has two poles, one north pole (N-pole) and one south pole (S-pole). The magnets have the same sex repulsion and the opposite sex sucks. Magnetic locks make use of this feature of magnets. Locks made of permanent magnets (magnetic beads) are also called "electronic locks."
First, the magnetic padlock 1, the magnetic padlock has two long strips inside the plate, one is the movable plate, the other fixed plate. When the lock beam locked by the padlock is strongly pulled, the lock slams the bump on the movable plate so that the movable plate has a force to move in the direction of the fixed plate, if the movable plate can move toward the fixed plate at this time. Distance, the lock can open. In the longitudinal direction of the two long strips, four holes are drilled into each plate. One end of each of the four magnetic beads is fixed with a relatively thin brass wire, and the brass wires on the four magnetic beads are respectively inserted into the four holes in the fixing plate.
The four holes on the fixing plate are thinner than the magnetic beads than the brass wires, so that the magnetic beads can be oscillated in all directions on the fixing plate, but after being fixed in the lock, they cannot be moved longitudinally due to the restriction of the lock body. One end of the magnetic beads without a fixed brass wire faces the key slot outside the lock, and the other end of the magnetic ball with the brass wire fixed faces the movable plate. Due to the magnetic interaction of the four magnetic beads inside the lock, the brass wire at the end of the magnetic beads is not aligned with the four holes on the movable plate (or is not concentric). When a pulling force acts on the locked locks At this time, the lock slams the bump on the movable plate. Although the movable plate is subjected to the force to move toward the fixed plate at this time, the brass wire is not aligned with the hole on the movable plate, that is to say yellow. The copper wire will resist the movable plate and can limit the movable plate to move toward the fixed plate, so the lock cannot be opened;
When the appropriate key is attached to the key slot outside the lock, the magnetic beads inside the lock will be attracted by the magnetic beads inside the lock (must be opposite magnetic poles inside and outside), making the four yellow inside the lock. The copper wire is driven by the magnetic beads, which are respectively aligned with the holes in the movable plate. When a pulling force acts on the locked lock plate, the protruding pieces on the movable plate are squeezed, and the force of the lock spring is overcome. , move to the fixed plate, because at this time the four brass wire can enter the hole in the movable plate, the movable plate can move a certain distance to the fixed plate, and the lock can be opened. In order for the brass wire to smoothly enter the hole in the movable plate, the end of the brass wire is pointed. When the lock lever is aligned with the lock hole, the lock lever is pulled by the inner spring of the lock and pulls the lock lever into the lock hole. At the same time, the movable plate is also returned to the original position by the force of the spring, so that the lock is closed.
2, open the general magnetic padlock, not very precise, when hard to pull the padlock beam, while hitting the lock body with hardwood, you can disturb the magnetic interaction, it is possible to make the brass wire tip in the hole of the movable plate , and make the lock open. Because this type of lock body is cast aluminum, it is not very strong in itself, and it is easy to knock the lock body or internal components badly, and it is hoped that attention will be paid to the strength of the knocking.
Occasionally, the magnetic polarity in the four keys is used to test the polarity, which is directly absorbed in the key slot outside the lock, and can also be opened. In the above operation, it is easy to suck together, not easy to separate, or sometimes even though the four magnetic beads are tested and the polarity is sucked in the key slot, sometimes the lock lock can't be unlocked. Do not worry, it may be appropriate to slightly change the magnetic beads. Position, and then active activity lock, you can open can also be used a strong magnet, such as the magnet on the horn, close to the key slot outside the lock, along the longitudinal movement back and forth while pulling the lock beam, you can open.
Second, magnetic door lock
1. The basic structure of the magnetic lock (including the magnetic drawer lock) and the “Ten†marble lock is very similar. The basic structure is also composed of a lock cylinder (plunger) and a lock cylinder housing (lock cylinder). The pinball lock has a pinball chamber, and the magnetic lock has a “magnetic bead room†(the magnetic bead room is what I call it); the pinhole on the pinball lock cylinder is a through hole (the pinball can be seen from the key hole), and the magnetic lock cylinder The magnetic beads on the holes are blind holes (the magnetic beads cannot be seen from the keyhole of the magnetic lock), and the depth of the blind hole on the magnetic cylinder core is shorter than the height of the magnetic beads, and part of the magnetic beads is not inserted when the proper key is not inserted. Can enter the blind hole in the lock cylinder, and the other part is exposed outside the lock cylinder, which is in the hole of the lock cylinder. This is the state of the magnetic lock;
The pinball lock is a pin tumbler, the magnetic lock is a magnetic ball tumbler, the tumbler locks the upper and lower beads, the magnetic lock also has upper and lower magnetic beads; the tumbler lock uses the spring force of the spring to control the tumbler to keep the locking ball in the static state, and the magnetic lock The two magnetic beads in each magnetic ball room are of the same polarity. Repulsion of the same sex is the magnetic force pushing the lower magnetic beads into the blind hole of the lock cylinder to maintain the locking state of the locking static state.
The ball lock is inserted into the keyhole using a suitable key, and the ball is directly contacted with the ball to overcome the elastic force of the spring to unlock all the ball latches. The magnetic lock is to use a suitable magnetic key to use the magnetic beads in the key and the magnetic beads in the lock. The repulsive force pushes out all the magnetic beads in the blind hole of the lock cylinder in a non-contact manner, releasing the locking action of each magnetic bead and unlocking; the position of the tampine in each “10†lock head of the same model is fixed (eg, Each row of beads differ by 90°), but the length of each ball is different, and the height of the used key tooth is the same. The position of the magnetic ball tumbler inside each magnetic lock of the same type is different, but each The lengths of the magnetic beads are the same, the polarity of the beads in each bead room is different, and the position and polarity of the magnetic beads on the key to open the lock correspond.
2, open and sell the magnetic open tool, can be used appropriate (size and size) of the magnetic lock unlock tool to try open. There are several (4-5) rotatable rings on the pole of the special tool. Several beads are embedded in the ring. The rotation ring also changes the spatial position and polarity of the magnetic beads. Turn the ring on the tool. Open the test tool by opening the insertion tool, once it corresponds to the position and polarity of each magnetic bead in the magnetic lock. The general magnetic lock seems to have only three or four magnetic beads. It is not very precise, and it is sometimes easy to try it out with a power tool. Some good quality magnetic door locks are sometimes difficult to unlock with a work tool.
KSNFJ is a factory ready-mix powder that has undergone strict quality control to facilitate on-site construction. It contains a selection of metallic mineral aggregate materials and specialty Portland cement, as well as special additives to promote construction performance. Specially made materials ensure gradation and free from impurities, which aggregate shows good conductivity and wear resistance.
KSNFJ for the need to improve the wear resistance, resistance of the concrete surface, in particular, sparks, antistatic areas. For example: flammable warehouse, chemical plants, petrochemical plants, dangerous products workshop, gas stations, liquefied gas stations, hangars, textiles, electronics, paper, printing and other long-term electrostatic regions.
Product Advantages:
1. To make the ground extremely hard, wear and impact resistance
2. With the concrete surface to form a monolithic bond
3. Fireworks conductive static
4. Anti-all kinds of oil, grease erosion
5. Easy to construct
Material properties:
Wear resistance: The KSNFJ-treated concrete floor exhibits at least three times more wear resistance than the untreated concrete floor.
Electrical properties: KSNFJ shows good electrical conductivity to dissipate static electricity. KSNFJ can be grounded in the traditional way with specific requirements. Due to the ductility of metallic materials in the ground so that the impact of metal collision with a high degree of fireworks.
Surface resistance: 1.0×105 ~1.0×108Ω
Compressive strength: Using the same amount of water as the actual construction, KSNFJ test block 28 days standard compressive strength of 90Mpa.
Storage: KSNFJ and Curing Agent intact packaging stored at room temperature and dry environment, the storage period of six months.
Health and Safety: The cement powder contained in KSNFJ will adversely affect the skin during normal use. When the product is mixed with dampness, the released alkali will damage the skin, irritate the eyes and respiratory system, avoid inhalation of its powder, and avoid skin and eye contact. Wear suitable gloves and eye protection. Once touched the skin, wash with water. Once you reach your eyes, immediately wash with plenty of water and seek medical treatment.
Basic material characteristics
≤3.1
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Performance
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Compressive strength (3 days)
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≥40Mpa
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Compressive strength (28 days)
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≥90Mpa
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Bending strength (28 days)
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≥13.5Mpa
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Non burning, do not explode, not flammable
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Fire class
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A1 level
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Wear resistance(750g/500r)
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≤0.03g/ãŽ2
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Hardness (Mohs)
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≥7
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Surface strength (indentation diameter mm)
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Oil resistance oil seepage
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＜0.3mm
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High temperature
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+200℃
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Freezing type
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-40 ℃ (Freeze-thaw 25 times after the
specimen without cracks, corner off defects,
the rate of strength loss
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Bond strength(28days)
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≥2.0Mpa
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Skid resistance
(wet and dry friction coefficient)
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≥0.5
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Air cleanliness
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N7 ~ N9 level
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Green No harmful radioactive, no harmful volatiles, no pollution
Non-Flammable Ground Hardener
Non-Flammable Ground Hardener,Non-Flammable Carborundum Floor,Anti-Static Carborundum Floor
Jiangmen Kasole Building Materials Co., LTD. , https://www.kasole-paint.com