Neodymium Magnet (also known as “NdFeB”, “Neo” or “NIB” magnets), are strong permanent magnets made from an alloy of neodymium, iron & boron. Part of the Rare-Earth magnet family, they have the highest magnetic properties of all permanent magnets, so that they are called magneto Kings. Due to their high magnetic strength and relatively low-cost, they are widely used in electroacoustic field, electronic appliances, motor field, mechanical equipment, medical care and other industries.
Dongguan KENENG International Trading Co., Ltd is a professional neodymium magnet manufacturer or neodymium magnet factory, and it has 15 years experiences in magnets design, manufacturing , coating and export to all over the world, and has a complete and scientific quality management system from raw materials to output products. We can manufacture and customize a variety of neodymium magnets, such as neodymium disc magnet, neodymium ring magnet, neodymium cube magnet, neodymium countersunk magnet and so on. And we have won good reputation in this industry for our excellent and stable quality, prompt delivery and fast response.
How to Custom Neodymium Magnets
As a 15 years neodymium magnet manufacturer, we support customize make low temperature and high temperature resistant magnet assemblies. We support customize make general material and special material strong magnetic and soft magnetic.
If your needs are unique,we can provide custom neodymium magnets using our state-of-the-art equipment which allows for surface treatment and tight tolerances to create precisely the specialty neodymium magnets you need. Welcome to send drawings for inquiry.
Neodymium Magnet Application field
Electroacoustic field: speakers, receivers, microphones, alarms, stage audio, car audio, etc.
Electronic appliances: permanent magnet mechanism vacuum circuit breakers, magnetic latching relays, watt-hour meters, water meters, sound meters, reed switches, sensors, etc.
Motor field: VCM, CDDVD-ROM, generators, motors, servo motors, micro motors, motors, vibration motors, etc.
Mechanical equipment: magnetic separation, magnetic separator, magnetic crane, magnetic machinery, etc.
Healthcare: nuclear magnetic resonance apparatus, medical equipment, magnetic therapy health care products, magnetized fuel saver, etc.
Other industries: magnetized wax inhibitor, pipe descaler, magnetic fixture, automatic mahjong machine, magnetic lock, door and window magnet, luggage magnet, leather magnet, toy magnet, tool magnet, craft gift packaging, etc.
LORI announced three LGA3647-4U-A31, LGA3647-4U-A32 and LGA3647-A35 4U quiet lga3647 cooler designed for the Intel LGA3647 platform as well as Intel scalable and Xlon melt core processors.
Applicable to Intel LGA3647 LGA3647-4U-A31, LGA3647-4U-A32 and LGA3647-4U-A36 4U quiet CPU coolers are based on sizes of 140 mm, 120 mm and 92 mm respectively. Covers everything from high-performance workstations to compact 4U servers. LORI's high-quality fans make them unusually quiet, ideal for use in noise-sensitive environments.
Lori has introduced three lga 3647 cpu coolers for the Intel LGA3647 platform. These new intel tower lga 3647coolers are dedicated solutions for the Intel LGA3647 platform and are ideal for scalable Xeon cpus based on skylake-SP and Xeon-Phi architectures. Its contact surface with the processor is 70×56 mm, more than double that of the standard model to ensure optimal cooling in these large processors. This custom design allows for optimal heat flow from the CPU to the aluminum cpu cooler of the heat pipe and heat sink.
Lori LGA3647-A35 4u cpu cooler is small and ideal for 4U rack-mounted servers that need to run quietly. The 12cm and 9cm models use a dual fan configuration to ensure excellent lga3647 cpu cooler performance despite a smaller size and surface area. They come with pre-coated thermal adhesive to ensure optimum joint line thickness and save installation time. Your SecuFirm2 mounting system includes two sets of brackets for supporting square and narrow LGA3647 sockets.
The magnetic powder brake is magnetic, ensuring the working operation stability. It has always been used to adjust the stop and loading of the drive speed stop in industrial applications and can control torque tension without other equipment. The power magnetic powder brake will not cause equipment wear loss.
What Is The Magnetic Powder Brake
The magnetic powder brake, also known as magnetic particle brake, is based on the electromagnetic principle, transmitting torque by magnetic particle, which means that the brake operation can be managed and adjusted, to achieve excellent power transmission, no friction and no wear. It has the advantages of fast response speed, simple structure, no pollution, no noise, no impact vibration, energy-saving, etc. It has been widely used in papermaking, printing, plastic, rubber, textile, metallurgy, and other unwinding and winding tension control in coil industries.
Working Characteristics Of The Magnetic Powder Brake
The torque is increased. Even if the drive end and the driven end are not fully connected, the torque will rise to the set torque set by the current setting, and then accelerate at a certain torque. This function will greatly match the thermal capacity of the clutch, suitable for buffering start. If the starting current is controlled, the starting torque will also change rapidly. At the same time, due to use of the magnetic powder with advantages of heat-resistant and wear-resistant, the permissible connection power is large, and continuous slip can be used in the allowable continuous slip power range.
Winding And Unwinding Principle Of The Magnetic Powder Brake
Unwinding
The tension of the unwinding is controlled by the brake torque of the magnetic powder brake. As the continuous reduction of the winding diameter, the braking torque must be continuously reduced. The torque of the magnetic powder brake is automatically controlled by the tension controller so that the tension is constant.
Winding
The final winding speed is normally higher than the line speed of the material, so the magnetic powder clutch working in a slip state, the tension is controlled by the torque of the powder clutch. In order to keep the tension, The torque of the powder clutch brake must be increased or decreased according to the size of the web.
How To Lengthen The Service Life Of The Magnetic Powder Brake
In order to ensure the working quality of the magnetic powder brake, the high-quality magnetic powder must be adopted, which has the advantages of highly magnetic, high magnetic inductance strength, large transmission torque, etc.
The magnetic powder brake should not be operated in a humid environment, so as not to damage the magnetic powder. Relevant maintenance is required to ensure long service life.
The installation environment of the magnetic powder brake should be selected in a dry, ventilated environment, avoiding moisture and dust.
When the magnetic powder clutch and magnetic powder brake are applied to continuous sliding in the winding and unwinding process, the life of the magnetic powder will vary depending on the condition of the use and relative sliding speed, such as the high surface temperature, heavy load, damp, etc. However, when it is usually used under the allowable continuous slip power, the service life of the magnetic powder brake clutch can achieve about 5000 to 8000 hours when the torque is reduced at the rated current. If used at rated torque, since the magnetic powder brake and the magnetic powder clutch can be continuously sliding used, the service life can be extended. In addition, even if at the same slip power, when the sliding speed and the relative rotation speed continue to be in a high state, the lifetime of the magnetic powder is shortened, so it is recommended to set a smaller relative speed. Generally, relative to the allowable continuous slip power, if it can be used under relatively good conditions, it is also possible to lengthen the service life of the magnetic powder.
Summary
The magnetic powder brake is a multi-purpose and high-performance automatic control element, which adopts magnetic powder as working media, controlled through an exciting current to achieve the purpose of controlling braking or transmitting torque, widely applied for tension control of the unwinding and winding, dynamometer loading and braking of the transmission machinery.
Solventless lamination technology is an environmentally-friendly composite technology that has developed rapidly in recent years. It has the advantages of no solvent residues which has no pollution to the atmospheric environment, significantly reducing energy consumption, fast machine speed, etc. In the solvent-free lamination process, tension control is extremely important and must be very accurate. Tension control mainly includes the control for unwinding tension, film tension, auxiliary unwinding tension, winding tension, and winding taper.
The Application Of Tension Control In Solventless Lamination Machine
The tension of the solventless lamination machine is generally divided into four parts, including the first unwinding tension, the second unwinding tension, channel tension and winding tension. In the process of changing the roll diameter and production speed, solventless lamination has a requirement of constant tension. On the basis of ensuring the quality of the composite material, tension control of solventless lamination machine plays an extremely important role in improving the quality of the windings.
It is important to ensure that stable tension and winding integrity due to the frequent operations of starting and shutdown, acceleration and deceleration for solventless lamination equipment.
The floating roller has the function of absorbing kinetic energy. When the first unwinding tension is required to be constant, the second unwinding tension and the channel tension control adopt the low friction cylinder to control the swing rod tension control form to ensure the solvent-free. During the acceleration and deceleration, with the stable tension of the lamination machine, the membrane tension and relaxation caused by tension fluctuation are the smallest. If the first unwinding tension, the second rewinding tension and the channel tension are controlled by the bearing tension sensor, the first retraction unit harness, the second retraction unit harness, the coating harness, and the laminating harness are completely synchronized to ensure stability, acceleration and deceleration during the stretching process.
In addition, the flexibility of the guide roller rotation is an important factor in ensuring the stability of tension control during the acceleration and deceleration process. Under normal circumstances, the rotation of the guide roller is only synchronized with the moving movement of the film, so the ink on the film surface will not be scratched, which requires the static friction between the film surface and the guide rolls greater than the resistance of the roller. Therefore, the guide roller must be flexible with high assembly precision. The unwinding tension and channel tension of solventless laminator both have a requirement of constant tension. There are three winding methods, which include linear windings, hyperbolic windings, and parabolic windings.
The solvent-free adhesive is characterized by a solid content of 100%, low viscosity, low initial viscosity. If the composite intima is a stretched film such as PE film and CPP film, it is tried to use a hyperbolic winding method. When rolling up, the inner winding volume is relatively loose and the composite film is not wrinkled. The wrapped diameter is closely wound on the surface, with no bubbles on the surface.
Further, the winding pressure can also play a role of an auxiliary winding, and the air between the films is discharged, some of which have the effect of eliminating static electricity, which can increase the tightness and uniformity of the winding.
Key Points For Tension Control Of Solventless Lamination Machine
1. Generally speaking, the unwinding tension is based on the auxiliary unwinding tension. Increasing the main unwinding tension to match the auxiliary unwinding tension, making the composite film finally reach a flat straight state, the unwinding tension is the minimum tension without a wrinkle.
2. The tension of the film which is gluing, is slightly larger than the unwinding tension, which is used to tract the film, so that the corresponding coated steel roller does not require a large drive current.
3. The winding tension is slightly greater than the unwinding tension, the Initial viscosity of composite membrane which the winding tension needs to withstand, is only about 0.2 N / 15mm, and the winding taper is controlled within 20%, with the increase of coil diameter, the decreasing degree of tension is slower than dry lamination.
4. For the films of different materials, the tension in each part is different in the lamination process. Even the film has the same material and the tension is also very different depending on the different composite structures. For example, in the PET / PE structure, because PE is easy to stretch, its tension is substantially from 3N to 5 N. PET is contended with the shrinkage stress of P and its tension is relatively large, substantially 20N. But in the composite structure of PET/paper, since the stretchability of the paper is better, PET only requires the minimum tension, typically 5N.
Methods For Checking Whether The Tension Control Is Appropriate For Solventless Lamination Machine
Shut down the solventless machine, making a cut on the composite film with a blade at the winding position and the most ideal state is that the composite film remains flat. If the composite film is curled in a direction, which indicates the tension of the film is too large, the tension of the film should be appropriately reduced or increasing the tension of the film in another layer.
Summary
During solventless lamination, the requirements for tension control are higher than that of ordinary compounds. The solvent-free lamination machine tension control has high requirements, making the elongation of the two-layer material rolls as consistent as possible through accurate tension control to ensure that the two-layer coils don’t produce relative slip during the solventless laminating process. Accurate tension control is the premise of ensuring the quality of composite films.
AMD Zen4 family will be launching two brand new platforms next year, AM5 for Ryzen Raphael and SP5 for EPYC Genoa, both of which offering compatibility with the new Zen 4 core architecture. Now AMD cpu coolers for the upcoming platforms have started to be listed by vendors such as Lori Cooler who has provided industrial-grade cooling solutions for both families.
AMD launches EPYC SP5 and Ryzen AM5 Industrial CPU coolers compatible with Zen 4 Genoa and Zen 4 Raphael chips
Lori cooler is a Chinese cooling solutions provider and cpu cooler manufacturer and produce industrial-grade coolers for AMD and Intel CPUs. The cpu cooler manufacturer has listed down a total of nine CPU coolers, five for AM5 and four for SP5 sockets. Since these are industrial-grade cooling solutions, they don't look as fancy as consumer-grade CPU coolers but they do their job (which is cooling) pretty well. The cpu coolers are listed in both passive and active-cooled options since server environments are generally equipped with lots of airflow coming from the chassis.
The main discussion about this leak is that it lists down both AM5 and SP5 socket types which will be part of the upcoming AMD EPYC and Ryzen platforms. The first processors to hit the platforms are going to be the Raphael with Zen 4 (for AM5) and also Genoa with Zen 4 (for SP5). It looks like some of these cpu coolers were part of the 3D Renders that were leaked out in Gigabyte's docs last month.
AMD AM5 (LGA1718) Socket Details:
The AM5 LGA 1718 socket will have 1718 pins arrange in the LGA (Land Grid Array) format. As for TDP requirements, the AMD AM5 CPU platform will feature six different segments starting with the flagship 170W CPU class which is recommended for the liquid coolers (280mm or higher). It looks like it will be an aggressively clocked chip with higher voltages and with CPU overclocking support. This segment is followed by 120W TDP CPUs with a high performance air cooler recommended. Interestingly, the 45-105W variants are listed as SR1/SR2a/SR4 thermal segments, which means when running in a stock configuration they require standard heat sink cooling solutions and therefore don't need much else to keep them cool.
The AM5 coolers listed by the Lori cooler which is professional cpu cooler manufacturer have a maximum thermal dissipation power of 240W (active) and 210W (passive).
AMD AM5 1U-N1
Best AMD AM5 Passive 1U Server Vapor Chamber Cpu Cooler
AMD AM5 2U-N3
Lori Amd Am5 Narrow 2U Passive Server Cpu Vapor Chamber Cooler
All Lori AMD AM5 socket Cpu Coolers have been fully tested and validated by Lori to ensure the best quality and cooling performance, and also we have a stock, fast delivery, If you are looking for AMD AM5 cpu coolers? please contact Lori cooler to buy.
AMD SP5 (LGA6096) Socket Details:
The AMD SP5 LGA6096 socket will have 6096 pins arrange in the LGA (Land Grid Array) format. This will be the biggest cpu socket to date that AMD has ever designed with 2002 more pins than the existing LGA4094 socket. We’ve already listed the dimensions of this SP5 socket above so let's talk about its power ratings. It looks like the SP5 LGA 6096 socket will have a peak power of up to 700W, lasting only 1ms, the peak power at 10ms is rated at 440W while the PCC's peak power rating is 600W. If the cTDP is exceeded, then the EPYC chips featured on the AMD SP5 LGA 6096 socket will return to all these limits within 30ms.
The SP5 Cooler listed by the Lori cooler as follows.
AMD SP5 2U-K21
Amd Socket Sp5 Passive 2U Server Cpu Cooler
All Lori AMD SP5 socket Cpu Coolers have been fully tested and validated by Lori to ensure the best quality and cooling performance, and also we have a stock, fast delivery, If you are looking for AMD SP5 cpu coolers? please contact Lori cooler to buy.
All Lori AMD SP5 socket Cpu Coolers have been fully tested and validated by Lori to ensure the best quality and cooling performance, and also we have a stock, fast delivery, If you are looking for AMD SP5 cpu coolers? please contact Lori cooler to buy.
