Mechanical off-type magneto, currently used in some tractor car starter, Taishan -18-type spray mist machine and some of the machines used in dynamic machines used on a large number. Magnetoelectric machine in use failure, some users are not very clear because of its working principle, although the total number of adjustments can not always be effective, discarded without buying new products are not uncommon, resulting in unnecessary waste. I. The basic working principle of magneto Magneto is the most basic working principle: the permanent magnet rotates in the iron core, the primary coil on the iron core induces the electromotive force (called the primary potential), and the current flows when the contact of the breaker is closed For the primary current), when the breaker contacts suddenly open, suddenly cut off the primary current, the secondary coil induces a very high electromotive force (referred to as the secondary potential), spark plug sparks. In order to obtain the strongest spark plug flashover, the maximum secondary potential should be obtained; in order to obtain the maximum secondary potential, the breaker contacts should be closed when the primary potential is zero and open when the primary potential is maximum. The moment of the primary potential is the point where the permanent magnet pole passes the neutral position 80 ° -100 ° and this angle is called the "bit angle" to ensure that the correct position of the breaker contacts relative to the correct cam mounting position , This requirement can be satisfied as long as the alignment mark is installed. For example, when assembling a C210 magneto, align the two opposite lines of the breaker base with the housing, and align the pointer on the breaker with the notch on the cam. When assembling a C244 magneto, Should be the size of the gear on the engraved line, the chassis and the breaker plate engraved alignment. As for the contacts of the breaker, it should be closed when the primary potential is zero, as long as the correct angle and the adjustment of the contact gap to the specified value can be met. Of course, to adjust the contact gap to the specified value is not only to meet this requirement, the appropriate contact gap can also make the contact open when the spark is not too large, to avoid premature contact ablation. Check the adjustment sequence 1. First check the rotor. Turn the rotor shaft by hand, when the magnetic commutation, the first feel like a compression spring resistance gradually increased to the neutral point will suddenly self-rotating, but the whole process should be frictionless friction stagnation. If so, the bearings may be over-worn or damaged, causing the stator and rotor to scratch each other. Check the contact status. Open the two contacts by hand or tool observation, if any dirt should be cleaned. If there is a slight ablation, can be "0" sandpaper folded, so that the two sand-facing outward, sandwiched between the contacts twitching back and forth polished. Such as severe ablation, the contact should be removed, polished with oil horsepower, or simply replace the new pieces. 3. Capacitor condition. This capacitor damage rate is not high, such as the need to check, you can Royal, multimeter high barrier repeatedly contact with the shell and the center electrode, such as each table are swing back "0", which indicates that the basic normal capacitance. It should be noted that the capacitor housing and the clamping plate and base often due to dirty rusty and poor contact, resulting in weak spark plug jump. Correctly adjusted. General instructions have adjusted the maximum contact gap 0.3mm. For the contact mounting plate has been removed and improperly installed magneto, only adjust the contact gap is not acceptable. This is because the magnetizing motor primary current, different from the automotive battery ignition coil constant battery voltage supply, only the magneto rotor pole and the stator pole in the polar exchange transition of a particular location, will produce the greatest Of the current, and only at this time disconnect the disconnect, the secondary coil will produce the strongest flashover voltage. In order to guarantee this kind of relation, engraved mark between the bottom of the contact mounting plate and the shell. However, the following situations encountered when the line position is uncertain: the bottom engraved unclear, the floor and the shell is not original, exchange floor for left and right spin magnetic motor modification. Use the following method can be roughly identified in the exchange of the polarity of a specific location: First, two backplane screws a little loose, and then turn the eccentric adjustment screw in the middle, hand slowly rotate the rotor and observe the shaft When the power-off cam is about to start the starting contact, the magnetic force is determined by the touch of hand to become the alternating point of gravity and be strictly fixed. At this point to observe the two contacts, such as just slightly open, you can fasten the two plate fixing screws, such as the two contacts are not open or open too large, the bottom plate can be rotated slightly so that the contact is slightly open and then tight solid. Finally check the maximum opening is in line with the provisions, such as the difference is too large, the eccentric screw can be slightly adjusted, and then repeat the contact opening time adjustment, you will get satisfactory results, that is, Test, sparking the distance in general more than 7mm. Three. Magneto precautions 1. When the engine work at high speed, should not use the ignition switch or button to turn off the engine, because the primary coil short-circuit, and the magneto can not immediately stop the rotation, the primary coil current generated Magnetic flux demagnetizes the magnetic axis. To protect the magneto, you should use the throttle first to reduce the engine speed, turn off the fuel tank switch so that the engine automatically stalls, or when the speed has been reduced, then use the ignition switch (or button) flameout. 2. In use should be regularly removed outside the magnet dust, oil and water, etc., and check the magnet motor in the engine on the fixed situation. 3. Regularly clean the breaker contacts, adjust the clearance if necessary, and periodically apply appropriate lubricant to the felt next to the cam. 4. Check magneto and spark plug wire fixing situation, do not allow the wire near the engine overheating part, not to use gasoline or diesel to scrub the insulated part of the wire. 5. After the magneto after any adjustment and partial disassembly, to check the ignition time is correct. 6. Do not disassemble the parts of the magneto often. Take special precautions on the magnetic axis during disassembly and do not allow impact and heating. After removing the magnetic shaft, in order to prevent the demagnetization of the magnetic pole, use the short iron to make the magnetic pole form the loop. 7. Replacing the magneto, pay attention to the relationship between the magnetic shaft, power cut, camshaft. The magnetic axis rotates in the direction of rotation to a neutral position of 80 ° -100 °. (Ie, the angle of position, which corresponds to the magnet pole leaving the shoe 2-3mm, if not correct, although all the magneto coils and mechanical parts are normal, the magneto may not give a complete spark), then the cam should be broken The electrical contact has just been opened. If this is not the case, release the contact plate fixing screw to adjust.
Powder carbon is Huahui Company's third series of products. The common produced varieties are 30x200mesh, 60x200mesh, 100x200mesh, <200mesh, <325mesh etc.
Powder activated carbon, which is grinded into suitable powder size with qualified activated carbon,is the third main products of HuaHui Company. Because of its powder state, better diffusivity, it can full touch to the reaction material. Meantime, it is applying to disposable recovery treatment of filling water and industrial waste water with its high efficient adsorption, moreover, also used for refining and decolorization of liquid. The types we manufacture through the year include HF-30x200, HF-60X200,HF-100X200,HF-325 etc.
Can be used as 1.Water Treatment Powder Carbon. 2.Rubbish Burning Powder Carbon. 3.Waste Water Treatment Powder Carbon.
| Main Technical Parameters of Powder Activated Carbon | ||
| Type | Mesh | Pass Rate(%) |
| HF-30×20 | 30-200 | >30mesh ≤3%,200mesh≤20% |
| >30Mesh≤3%,200Mesh pass rate≤20% | ||
| HF-60×200 | 60-200 | >60mesh≤5%,200mesh≤20% |
| >60 mesh ≤5%,200Mesh pass rate≤20% | ||
| HF-100×200 | 100-200 | 100-200mesh≥80% |
| 100-200mesh ≥80% | ||
| HF-200 | <200 | 200mesh≥90% |
| 200Mesh pass rate≥90% | ||
| HF-325 | <325 | 325mesh≥90% |
| 325Mesh pass rate≥90% | ||
Powder Activated Carbon
Powder Activated Carbon,Water Treatment Powder Carbon,Rubbish Burning Powder Carbon,Waste Water Treatment Powder Carbon
Ningxia Huahui Activated Carbon Company Limited , http://www.huahurcarbon-tr.com