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HU NAN YUBANG MAGNETIC MATERIAL CO.,LTD
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NdFeB) with high thrust, low loss, small electrical time constant, fast response speed, etc., in lifting systems (elevators, mine hoisting systems), electronic manufacturing equipment (such as MEMS micro-manufacturing and micro-assembly systems, high-speed SMT Machines, micro-encapsulation platforms, high-speed and high-precision numerical control systems (such as high-speed machining centers, precision grinding machines) and other occasions have a wide range of application prospects and have...
【Office Partner Information Center】Magnetic sticky note, magnet plus MEMO paper function, changing shapes, you can put your logo design, can be adsorbed in the refrigerator or office partition, readily copy the important things, not afraid Lost, is a very popular advertising gift. Not the same is not the same, the new visual change of the magnetized photo frame, popular sync with you, pick up and drop the photo does not fall off, the corner edge design is sleek not to hurt the hand, adults and...
Abstract: The latest developments of permanent magnet drive technology in foreign countries are summarized. Application areas broaden, improve technical performance; there are some new technologies, new processes, new structure; application of advanced manufacturing technology and management, the magnetic pump more efficient, reliable and durable. Keywords: permanent magnet drive technology material structure application 1 Introduction: British 1940 Charles and Geoffrey Hwward for the first...
Release date: 2017-12-29 In 2017, the incidence of depression and the use of antidepressants were high, and about one-third of the patients did not work after receiving treatment. For them, transcranial magnetic stimulation (TMS) – with strong The magnets are non-invasively stimulating the treatment of brain cells - perhaps a viable option. In fact, TMS is not a new treatment, and the US Food and Drug Administration approved the therapy in 2008. One of the novelties is the growing evidence of...
Researchers at Temple University and the University of Maryland have discovered a new type of magnet that expands in volume when placed in a magnetic field and wastes as little heat as possible during energy harvesting. This new discovery has enormous potential for application and is expected to not only replace existing technologies but also create new ones. Hashi Dip Chopra, Head of Mechanical Engineering Department, Department of Materials Genomics and Quantum Devices, Temple University, and...
Multiferroicity refers to the orderly coexistence of ferroelectricity, ferromagnetism, and iron elasticity. The multi-ferric material and magnetoelectric coupling effect not only contains a wealth of basic physics problems, but also has important application prospects. It is a research hotspot in condensed matter physics and materials science in recent years. Multiferroic materials are divided into two major categories: composite materials and single-phase materials. The magnetoelectric...
Magnetic flap level gauge the correct use and maintenance methods: Magnetic flap level gauge from the body, the flip box (composed of small red and white magnetic flap), float, flange cover and other components for all types Liquid level measurement of the container. Magnetic flap level gauge can be used for high temperature, explosion-proof, anti-corrosion, food and beverage and other occasions, as a liquid level display or remote display and remote control. UHZ series magnetic flap level...
Atmospheric water ring pump is a pump products, in many industries have a very wide range of applications, but we all know? In fact, the atmosphere water pump is a series of atmospheric ejector water ring pump unit, water pump in front of the main reason for the series pump is to raise the ultimate vacuum, and to expand the use of the pump. Compared with other types of mechanical vacuum pumps, water ring vacuum pump has many advantages, including simple and compact structure, manufacturing...
Calculation of permanent magnet motor electromagnetic torque 1 Introduction In recent years, due to the excellent performance of the permanent magnet brushless DC motor and the continuous increase in market demand, more and more attention has been paid to the research of the permanent magnet brushless DC motor. The design of the permanent magnet brushless DC motor is a comprehensive design of the motor body and control system. It not only involves the basic theory of motor design, but also...
Recently, it was learned from CRRC Tangshan that all permanent magnet electric drive diesel locomotives independently developed by the company have completed all type tests and passed the acceptance test and will be put into use. The diesel locomotive has broken through a number of key technologies and has completely independent intellectual property rights, exploring more options for China's railway equipment to go global. Due to its small size, light weight, low output torque, high...
A sheet-like ferrite bead is an inductor using a ferrite. Therefore, when a large current is passed, special attention needs to be paid to the performance change due to magnetic saturation. Fig. 1 is an example of a change in impedance value when a current passes through a sheet-like ferrite bead. Fig.1 Example of DC overlap characteristics of chip ferrite beads For this reason, when a large current passes through the sheet-like ferrite bead, the impedance value decreases, so if it is used at a...
With the popularization of mobile phones, portable music players and portable game consoles, people are beginning to demand the design of these electronic devices to be more compact, high-performance, low energy consumption and low noise. Therefore, a large number of ultra-small capacitors, resistors, and EMI suppression filters are widely used in these small portable devices. The chip ferrite beads have a simple structure and are widely used for EMI noise suppression because of their small...
High temperature control valve is the working temperature is greater than 450 ℃ valve. Can be divided into 450 ~ 600 ℃, 600 ~ 700 ℃, 750 ℃ three categories. What are the main problems usually involved in high temperature control valve? Severe thermal expansion and contraction problems, so that the guide gap, the valve plate rotation due to expansion of the gap to reduce or even become an interference, and thus stuck. Under high temperature, the creep of the material leads to the decrease of the...
Maglev submersible pump it achieved a major breakthrough in the field of submersible pumps in the world, effectively solve the shortcomings of the traditional submersible pumps: such as low conversion efficiency, high power consumption, limited lift, bearing vulnerability, frequent maintenance. Widely used in industrial and mining enterprises for drainage, farmland irrigation and plateau, mountain water supply and other fields. Maglev Submersible Pump It unique patented technology has changed...
Nowadays consumers are demanding more and more in all aspects. Therefore, the merchants are constantly developing new materials, so now there is a magnet curtain on the market. In fact, it can also be called mosquito screen curtain. Not only can we avoid being bitten by mosquitoes during the summer, but magnet curtains are also used in many public places. Let's look at the types of magnet curtains and how to choose magnet curtains. Kind of magnet curtain 1, the magnet curtain is actually a very...
1, the thickness of the workpiece and the impact of surface quality Before use, should be based on the workpiece suction plate thickness according to the performance curve, to find out the percentage of the plate thickness and holding force shown. When the surface roughness Ra is less than 6.3μm, it means that there is no gap between the workpiece and the surface of the permanent magnet lifter, and the gravity may reach 100%. If the surface roughness Ra is greater than 6.3μm, or worse, the...
Submersible pump is the main equipment for deep well water. Use the entire unit dive into the water operations. The groundwater access to the surface, water is daily, mine rescue, industrial cooling, farm irrigation, submersible pump to improve the sea, ships loaded, but also for the fountain scene, hot water submersible pumps for hot spring bathing, but also for deep well Access to groundwater can also be used for water, reservoirs, drains and other water projects. Mainly used for farmland...
Recently, the reporter learned from the CSR Zhuzhou that the institute developed a new generation of "high-speed rail power" - high-speed train permanent magnet synchronous traction system, successfully passed the national railway testing and testing center ground test assessment. The successful development of this system indicates that China's high-speed rail power technology is expected to enter the "permanent-magnet era." The performance of the traction system, to a certain extent,...
First, the causes of cavitation Cavitation is caused by the liquid vaporization, the liquid molecules escape the liquid surface, a process of gas molecules, known as "vaporization." The degree of vaporization of liquid pressure and the size of the high and low temperature. Dissolved in the liquid gas, pressure and temperature changes will be released, the formation of cavitation. When the internal pressure of the liquid drops below the saturated vapor pressure of the liquid at the temperature,...
1 The basic concept of servo system 1.1 Nouns The word "servo" is derived from the Greek word "slave." People want to be a "servo" as a docile tool that can be manipulated to comply with the requirements of control signals. Before the signal comes, the rotor is stationary; when the signal comes, the rotor turns immediately; when the signal disappears, the rotor can stop on its own. Because of its "servo" performance, hence the name - servo system. 1.2 Definition Servo system - is an automatic...
Magnetic pump in the course of daily use recommended that the majority of users should do the following maintenance work: (1) Check the magnetic pump pipeline and the combination of loose phenomenon. Rotate the magnetic pump by hand to see if the magnetic pump is spirited. (2) If there is abnormal sound of magnetic pump should stop immediately check the reasons. (3) Unscrew the diversion screw plug of the magnetic pump body, and pour water (or slurry). (4) close the outlet valve and outlet...
Common cold water pump refers to the pump can be transported below 80 ° c temperature of the liquid pump called cold water pump, the temperature between 80 ° c to 120 ° c pump called the hot water pump. The difference between cold water pump and hot water pump: 1, cold water pump features: Common cold water pump seal packing or NBR mechanical seal, the most commonly used packing seal pump is IS single-stage single suction centrifugal pump The pump is also the earliest cold water pump products,...
Filter press pump installation points: 1. The import and export of pumps should be installed valves and rubber seismic section (pipe compensator) to facilitate overhaul. 2. In the pump installation order, first install the import and export pipelines, and then the anchor bolts to prevent the connecting pipe when the pump tensile stress, damage to the pump. 3. The outlet pipe is long or the filter press pump is installed at a high position. A check valve should be installed at the outlet of the...
Circulating pump refers to the device in the conveying reaction, absorption, separation, absorption liquid regeneration circulating fluid pump. Commonly used single-stage centrifugal pump. Circulating pump flow medium size, stable operating conditions, the pump flow changes smaller. 1, circulating pump works by rotating the inlet and outlet pressure difference, the water cycle. The pump used is called the circulation pump, for example, the hot water in the plumbing heating pipe is circulated by...