The use of sintered NdFeb permanent magnet material (2)

Sintered NdFeb permanent magnet material, because of its excellent magnetic properties and cost-effective, is widely used in a variety of fields, today take you to understand the use of sintered NdFeb permanent magnet material. 1.Lock the door Neodymium magnets are used in public, commercial and residential buildings to create magnetic door locks. A countersunk or can-shaped magnet embedded in the door surface is used to attract another wall-mounted magnet or steel plate. The strong neodymium magnets easily support the weight of the door, and the leverage provided by the door means the magnets can be easily detached. 2. Motors and generators Electric motors rely on a combination of electromagnets and permanent magnets (usually neodymium magnets) to convert electrical energy into mechanical energy. A generator, by contrast, converts mechanical energy into electricity by moving a conductor in a magnetic field. Step 3: Jewelry Small magnets are used to make jewelry and to make jewelry buckles. Countersunk neodymium magnets have opposite poles on the countersunk surface, providing a firm fixation, and since neodymium is the strongest magnetic material in the world, a magnet as small as 5 mm in diameter is effective. 4. Bearing Magnetic bearings use the concept of magneti

Use of sintered NdFeb permanent magnet material (1)

Sintered NdFeb permanent magnet material, because of its excellent magnetic properties and cost-effective, is widely used in a variety of fields, today take you to understand the use of sintered NdFeb permanent magnet material. 1. Audio equipment such as microphones, pickups, earphones and speakers. Permanent magnets are used in speakers along with current-carrying coils, which convert electrical energy into mechanical energy and move the speaker cone, which in turn changes the pressure of the surrounding air to produce sound. The microphone works in reverse; The diaphragm is connected to a coil located inside the permanent magnet, and when the sound moves the diaphragm, so does the coil. As the coil moves through the magnetic field generated by the permanent magnet, it produces an electrical signal that has the signature of the original sound. 2. False teeth Tiny neodymium magnets can be used for accessories in corrective devices or to hold dentures together where several teeth are missing. Because of their strength, even tiny neodymium magnets work, and they have higher corrosion resistance when coated. 3. Magnetic coupling pump The magnetically coupled pump consists of a motor drive shaft and a motor drive shaft with a strong magnet ring attached, and a second smaller magnet ring connected to another shaft, which is connected to an impeller located within the larger magnet ring. When the motor turns the drive shaft and one set of magnets, the resulting magnetic

Basic knowledge of sintered NdFeb permanent magnet

Sintered Ndfeb permanent magnet material is an alloy magnet composed of neodymium, iron, boron and other trace elements (Dy, Al, Nb, Ga, Mo, Co, etc.). Its manufacturing through powder metallurgy process will be melted alloy ingot powder orientation in the magnetic field and molding, forming the embryo body in inert gas or vacuum sintering to densify, so the sintered Ndfeb has high magnetic energy product and coercivity, and cost-effective, and has good mechanical characteristics of the "contemporary magnetic king" said. Sintered Neodymium Magnets is also called rare earth permanent magnet, the main component is rare earth metals. Rare earth metals belong to the strategic reserve resources in our country. The storage of rare earth in our country accounts for more than 90% of the world, which is mainly distributed in the Inner Mongolia Baitou Baiyun deposit Hubei, Jiangxi Ganzhou region, Sichuan and guizhou regions. Nowadays 70% of the magnetic material is produced in our country, which sintered ndFeb material was also produced in our country. Application fields of sintered NdFeb: Sintered NdFeb is mainly used in all kinds of DC motor, brushless motor, stepper motor, servo motor, permanent magnet motor, automobile motor, motorcycle motor, electric tool motor, household appliance motor, office equipment motor, elevator pull motor, oil pump, water pump, digital camera, vibration motor, monitoring equipment, speaker sound, instruments, generators, wind power generation, sports equipment , massage equipment, electronics industry, hardware and plastic, p

How are sintered NdFeB magnets produced?

Sintered Nd-Fe-B permanent magnets are produced by powder metallurgy. There are three major process links in raw material production - blank processing - surface treatment, and each link is subdivided into several small links. Sintered NdFeB permanent magnetic material is a permanent magnetic material based on the intermetallic compound Nd2Fe14B. Its main components are Nd, Fe and B. In order to obtain different properties, neodymium in the material can be partially replaced by dysprosium (Dy), praseodymium (Pr) and other rare earth metals, and iron can be partially replaced by cobalt (Co), aluminum (A) and other metals. Nd2Fe14B compound, with tetragonal crystal structure, high saturation magnetization and uniaxial anisotropy field, is the main source of permanent magnetic properties of Nd-Fe-B permanent magnetic materials. The raw material ratio of sintered NdFeB is very important, which relates to whether the product quality and magnetic properties can meet customer requirements. Different ratios affect the brand of permanent magnetic materials. The relative density of sintered NdFeB powder compacts is relatively high, the contact between particles is mechanical contact, and the bonding strength is low. In order to further improve the density, improve the contact property between powder particles, increase the strength, and make the magnet have the microstructure characteristics of high permanent magnetic properties, it is necessary to heat the compacts to the temperature below the basic phase melting point of the powder, and conduct heat treatment for a period of time. This process is called sintering. After the sintered magnet is quenched at high temperature, the grain boundary phase distribution is uneven and the grain boundary is not

About the classification of magnets

There are many types of magnets, which are generally divided into two categories: permanent magnet and soft magnetic. The magnets we call generally refer to permanent magnet magnets, and permanent magnet magnets are divided into two category metal alloy magnets M cobalt magnets (SMCO) and aluminum nickel cobalt magnets (Alnico) ferrite. Nd-Fe-B Magnets: It is currently a magnetic function that is found to be highly found. It is called the magnetic king. It has a very high magnetic function and its large magnetic energy accumulation (BHMAX) is more than 10 times. Its mechanical processing function is also quite good. High working temperature can reach 200 ° C. Moreover, its texture, stable function, and good cost performance, so it uses extremely wide use. However, because of its strong chemical activity, it is necessary to deal with its appearance. (Such as plating ZN, Ni, electrophoretic, passivation, etc.). Oxygen Magnet: Its main raw materials include Bafe12O19 and SRFE12O19. It is made through ceramic craftsmanship. The texture is relatively hard and it is crispy data. Because the iron oxygen magnets have good temperature resistance, low price, and moderate function, it has become become it. Use a wide range of permanent magnets. Alnico magnet: a alloy composed of aluminum, nickel, cobalt, iron, and other trace metal elements. The casting process can be processed and produced into different scale and shape, and the processability is very good. The cast aluminum nickel cobalt permanent magnetic magnetic coefficient, the operating temperature can be as high as 600 ° C. Aluminum nickel cobalt permanent magnet products are widely used in various instrument and other use areas.

Applications of neodymium magnets in electric motors

The use of neodymium magnets in electric motors has increased considerably, especially due to the growing demand that exists with the growing market share in the global automotive market. Forecasts dictates that by 2030, the number of electric cars is expected to swell to 250 million, a massive growth in a relatively short time. To describe the importance of Neodymium in EV vehicles, it is first important to describe why? To start off, electric vehicle motors performs best when they are small and light, compared to traditional motors. Neodymium magnets are important due to flexibility of sizes that does not affect the general requirement of magnetic power. What I mean by this is that size could be specifically cut without losing magnetic pull force. As Neodymium Magnet is the strongest magnetic assembly in the world, it is imperative that the best quality of magnet be used to create innovative mechanic functions. Secondly, how does Neodymium work in EV Motors? Neodymium magnets act as the immutable stator in a traditional electric motor. The rotors act as a moving electromagnetic coupling that pulls the pods along the inside of the tube. It provides the rejection power to create a circular or linear motion. Therefore, it is the perfect finished good to use in such as the high-performance motors found in electric vehicles, the use of which has increased rapidly. Due to necessary requirements regarding high temper

Insights on the Neodymium Magnet Global Market 2022 and beyond.

Neodymium magnet is a strong type of magnet that is composed of neodymium, boron, iron, and various transition metals. These magnets have high strength and are very lightweight due to the fact they are used in many applications in consumer electronics, industrial fixtures, and the automotive industry. Neodymium magnets have a wide range of applications from hard disk drives, speakers, headphones, anti-lock brake sensors, MRI scanners, light fixtures etc. The growing demand for neodymium magnets through various end-user industries such as automotives, consumer electronics, healthcare, and others are projected to drive the growth of the market in the next 5 years. Growing demand through the innovation of consumer electronics- converged devices such as smart TVs, smart houses, smartphones, and digital setup boxes such as shutter control through platform connection will be a major growth driver for the neodymium magnet market. Moreover, as experienced through the global pandemic of Covid-19 in the medical field, the rising demand for MRI scanners in the healthcare industry is expected to increase the demand for neodymium magnets in the future. This is due to MRI scanners requiring high-powered magnetic activity to capture high-quality images therefore require the highest strength and grade of neodymium magnets. Furthermore, rising demand for renewable energy due to current global energy crisis from both natural and fossil fuel has brought forth growing installations of wind turbines across various countries with projections to increase which will further drive the overall market growth.

Permanent Magnet Motor Market Size to double in the next 10 years.

With the global permanent magnet motor market valued at USD 45 billion in 2021, rising demand of Electric Vehicle are increasingly driving the demand in the automotive market. With growing market share of automotive companies choosing to move away from the traditional use of fossil fuel which effects our environmental imprint, the growth of the permanent magnet motor industry seeks to allow for the market and the industry to move away by providing better performance and cost-saving methods when it comes to moving away from the traditional method of the automotive industry. Therefore, neodymium plays an important role when it comes to the permanent motor market, as they are the strongest and most versatile magnets in the world which provide durability and performance required and utilized by PM engines. Neodymium magnets are the perfect magnet as they do not require consistent electrical energy to keep their electric field stable. This is due to the nanocomposite in magnets to provide long-lasting performance while not diminishing engine size. Examples of long-lasting magnet engines can be seen used in forklifts, robots, blower drives, railroad switchers and commercial applications. According to Precedence Research, the global permanent magnet motor market size is expected to be worth around USD$ 89.6 billion by 2030, poised to grow at a CAGR (Compound annual growth rate) of 7.95% from 2022 to 2030. The compound annual growth rate is important as it is the rate of return that is required for an investment to grow from its starting balance to its end balance with profits reinvested at the end