Specification:
| Description | Sintered Rare Earth Magnets | |
| Material | Neodymium-Iron-Boron | |
| Working Temperature | Grade | Max.Operating Temperatures |
| N35-N52 | 80°C (176°F) | |
| 33M- 48M | 100°C (212°F) | |
| 33H-48H | 120°C (248°F) | |
| 30SH-45SH | 150°C (302°F) | |
| 30UH-40UH | 180°C (356°F) | |
| 28EH-38EH | 200°C (392°F) | |
| 28AH-35AH | 220°C (428°F) | |
| Magnet Shape | Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more.Customized shapes for Rare Earth Magnets are available. | |
| Magnet Coating | Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more. | |
| Technology Advantage | Depending on advanced R&D center, Quality control team and professional machining technicians, we can surpass our competitors in the stability of quality and superiority of property. | |
| Delivery Advantage | The lead time must be 3-5 days quicker than industry average because of more flexible machine process control. | |
| Price Advantage | The price is 5-8% cheaper than industry average because of an excellent and efficient management system. | |
| Application | Rare Earth Magnets are widely used in many fields, such as motors, sensors, microphones, wind turbines, wind generators, VCMs in hard disk drives, printer, switchboard, loudspeakers, magnetic separation, magnetic hooks, magnetic holder, magnetic chuck, common daily use, and so on. | |
| Best Magnets Technology offers excellent selection of magnetic assembly, magnetic tool and magnetic equipment for home use, office use, industrial use, computer use and so on.Both our office and factory are located in Ningbo which is very developed city and very big seaport. We provides you an extensive range of magnetic assembly, magnetic tool and magnetic equipment.Containing our excellent original design, every product is elaborately produced by our factory.When you use them, you feel so comfortable and wonderful.These tools and assemblies are widely used in your daily life by helping you clean scrap iron and other debris, lift up heavy items and fix objects firmly.And they even have more functions you've never thought of. We appreciate your enquiry and we will give you incomparably good product and services. Welcome to be our distributor.The high quality of our products and the considerate after-sale service will make your business more and more prosperous. If you want to purchase magnetic assembly, magnetic tool and magnetic equipment, please feel free to contact us. | ||
Manufacturing Process:
1.The raw materials are burdened according to Nd2Fe14b.
2.The burdened materials are melted at a high temperature to form an alloy (or stip casting) in a vaccum induction furnace.
3.The alloy (or strip casting) is pulverized into small particles that are several microns in size.
4.The particles are placed in a magnetic field and pressed into any desired shape.
5.The products heat treated at a temperature of 1,000ºC or higher in sintering furnace.And then aging the magnets to adjust the properties.
6.The magnets are tested their magnetic properties.
7.The magnets are machined to the desired size and shape including surface treatment.
8.Visual inspection at last.
Physical Properties:
| Temp.Coeff.of Br | -0.09~-0.11%/ºC |
| Density | 7.5~7.6g/cm3 |
| Vickers hardness | 600Hv |
| Tensile Strength | 8.0kg/mm2 |
| Specific Heat | 0.12kCal/(kg,ºC) |
| Young's.Modulus | 1.6x1011N/m2 |
| Poisson's.Ratio | 0.24 |
| Curie Temperature | 310-340ºC |
| Temp.Coeff.of Hc | 0.5~-0.60%/ºC |
| Electrical Resistivity | 114 µ Ω.cm |
| Flexural Strength | 25kg/mm |
| Coeff.of Thermal Expansion | /4x10-6/ ºC |
| Thermal Conductivity | 7.7kcal (m.h.ºC) |
| Rigidity | 0.64N/m2 |
| Compressibility | 9.8x10-12m2/N |
| Relative Recoil Permeability | 1.05 |
Surface Treatment:
| Coating | Zn | Double Ni | NiCuNi | Electroless Ni | Epoxy |
| Colour | White | Silver | Silver | Silver | Black |
| Thickness | 8-15 | 15-20 | 15-30 | 10-20 | 10-30 |
| Pressure Cooker Test (120 C,2atm,100%RH) | >15hr | >24hr | >48hr | >24hr | >24hr |
| Salt Spray Test    (5% NaCI,35ºC,1.2atm)  | >24hr | >24hr | >48hr | >72hr | >100hr |
Our Neodymium Magnets Advantage:
1.High performance
 Our neodymium magnet for variable frequency compressor,motor, rotor...
2.High consistency
 Our neodymium,(Br) and (Hcj) are much higher .The consistency of the surface magnetic field and magnetic flux can be controlled at +/-0.05%
3. High working Temperature
 Our neodymium magnet can satisfy the working temperature requirements with excellent temperature resistance. can be in most application.
Magnet Tips:
Magnets are shipped with plastic spacers in between them in order to make them easier to handle if a magnet attaches to another magnet they can be very difficult to separate.Magnets need to be handled with care because even though they cook like are actually very brittle and can break if they're mishandled.If a magnet is allowed to slip out of your hand and snap into a surface or onto another magnet it can break very easily.In order to remove a magnet from a stack of magnets, firmly grip the magnets,and then slide the top magnet off of the stack .Do not stop moving the magnet away from the stack until you can no longer feel the magnets pulling on each other.
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Antioxiant With Three Functional Groups
Chemical name:1,3,5-Tris(3,5-di-tert-butyl-4-hydroxy benzyl)-s-triazine-2,4,6-(1H,3H,5H)trione
Physical Properties: White Crystalline Powder Assay: ≥98% Melting range: 218-224℃ Ash: ≤0.006% Light Transmittance:425nm≥95% ,500nm≥97% Volatiles: ≤0.5%
Introduction: The product is soluble in solvents like acetone,chloroform and amide, and insoluble in alkane and alcohols. Flash point:289.4℃kindling point:302℃.
Applications:The product is a kind of tri-function group phenolic antioxidant, without pollution and coloring up. Dependent on high molecular weight and melting point, it has low volatility, low transferring,and good water extraction resistance, white equips plastics with resistance to thermo-oxidation and light-oxidant. AT-3114 suits for PE,PP,PS,ABS,nylon,PVC,PU,cellulose and synthetic rubber, especially effective for polyolefin.When used with UV absorbent and phosphite ester,a synergistic effect can be reached, thus enhancing the thermo-stability and light stability.
This product can be used to contact food polyolefin products(contact fatty and non-fatty foods).The photo-thermal stability can be further improved by synergism with UV absorber or phosphates.It can prevent the aging of the polymer by heat and oxidation, and also has anti-light property. It is mainly used as an antioxidant for polypropylene and polyethylene, which has the functions of heat and light stabilization. There are synergistic effects with photostabilizers and adjuvant antioxidants. The product is low in toxicity. POLYOLEFIN products available for food exposure at a dosage not exceeding 15 % of the main materials.
Antioxiant With Three Functional Groups
Antioxiant With Three Functional Groups,Polyethylene Additive,High Melting Point Antioxidant
Tianjin Xindafeng Import & Export Trade Co., Ltd. Tangshan KeAo chemical additives Co., Ltd. , http://www.tskaantioxidant.com