Model NO.: L500-5N42
Trademark: XL-magnet
Origin: China, Guangdong
HS Code: 85051110
Product DescriptionProduct name :Â Â Â Â Â Â Â Â Â Â Â Â Â permanent neodymium magnet (NdFe B)
Direction of magnetisation :Â Through the thickness or through diameter
Max working temp.:Â Â Â Â Â Â Â Â Under 80 Degree C
Specification: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16x3.5x5mm
HS code: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 850511
Coating:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Nickel
Density: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7.5g/cm3
Tensile Strength:Â Â Â Â Â Â Â Â Â Â Â Â 8.0kg/mm2
Original: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â China
Mangets Application
Office Automation -   Personal computers, Copiers, printers
Electrical energy -     flywheels, wind power station
Science and research - ESR(electron spin resonance), magnetic levitation, photon generation
Medicine -            dental materials, imaging
Industry -             industrial robots, FA (factory automation), Recycling
Audio-visua products - televisions, DVD(digital videl disc), CD(compact disc), headphone stereo
                     Transportation - small motors, sensors, Automobiles, EV(electric vehicles), hybrid cars
Telecommunications -  mobile communication, PHS(personal handy-phone system)
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 vacuum induction furance.
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 are heat treated at a temperature of 1,000ºC higher in a sintering furnace. And then aging the magnets to adjust the properties.
6. The magnets are tested their magnetic properties.
7.The manets are machined to the desired size and shape including surface treatment.
8.Visual inspection at last.
Characteristics of Surface Treatment
| Performance | Zn | Double Ni | NiCuNi | Electroless Ni | Epoxy |
| Colour | White | Silver | Silver | Silver | Black |
| Thickness (M) | 8-15 | 15-20 | 15-30 | 10-20 | 10-30 |
| Pressure Cooker Test (120C,2atm,100% RH) | >15hr | >24hr | >48hr | >24hr | >24hr |
| Salt Spray Test     (5% NaCl,30ºC,1.2atm) | >24hr | >24hr | >48hr | >72hr | >100hr |
Material Detail
HS Code: Â Â Â Â Â Â Â 850511
Material: Â Â Â Â Â Â Â Neodymium Iron Boron, also call NdFeb
Advantage: Â Â Â Â Â Strong magnet power
Disadvantage: Â Â higher cost
Size: Â Â Â Â Â Â Â Â Â Â Â from 0.1mm to 200mm, depend on detail dimension
Shape: Â Â Â Â Â Â Â Â Â Round, Rectangle, Ring, arc, other special
Grade Choose: Â Â Â N33,N35,N38,N40,N42,N45,N48, N50,N52,M,H,SH,HU,EH,AH
Surface Coating:Â Nickel, Zinc, Copper, expoxy, PVC, etc
Quality Control: Â ISO2008.9001, QA team
Magnet Life: Â Â Â Â Permament under good condition
Physical Properties:
Temp.Coeff.of Br:              -0.09~-0.11%/°C
Density: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7.5~7.6g/cm3
Vickers hardness:Â Â Â Â Â Â Â Â Â Â Â Â Â Â 600Hv
Tensile Strength: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8.0kg/mm3
Specific Heat:                  0.12kCal/(kg, °C)
Youg's.Modulus: Â Â Â Â Â Â Â Â Â Â 1.6x1011N/m2
Poisson's.Ratio:Â Â Â Â Â Â Â Â Â 0.24
Curie Temperature:            310-340°C
Temp.Coeff.of Hc:          0.5~-0.60%/°C
Electrical Resistivity:             114 µ Ω . cm
Flexural Strength: Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25kg/mm
Coeff.of Thermal Expansion: 4x10-6/°C
Thermal Conductivity:       7.7kcal(m.h.°C)
Rigidity: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.64N/m2
Compressibility: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9.8x10-12m2/N
Relative Recoil Permeability: Â Â Â Â 1.05
Packing & Shipment
1.Normal packing in Polybag + inner white box +brown master carton
2.Also packing in foam or wooden case as client's request.3.Shipment via Express, Air, Ocean.
3.Shipment via Express, Air, Ocean.
Quality Control
Remarks
1.we has 10 years experience in producing magnet and we can produce magnet according to your own      specifications or designs.
2. we own a professional team to ensure high quality products , and strict managment to ensure timely  delivery and perfect after-sales service.
3.Regarding the cost, we would like to offer the best competitive price for our clients.
4.Samples are always available.
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A dye is a colored substance which has an affinity for the substrate it is applied. Dyes and other materials to make fiber coloring substances, natural and synthetic sub-two categories. Dyes are colored substance. But not necessarily colored substance is a dye. Because they absorb certain wavelengths of light more than others. In contrast to dyes, pigments are insoluble, and has no affinity for the substrate. Some dyes can be precipitated with an inert salt to produce a lake Pigment, and based on the use of which may be aluminum lake, calcium lake or barium lake pigments of salt.
Dye was able to make sure the color attached to the fiber material, and easy to fall off, change color. Typically dye dissolved in water, a part of the dye Mordant dye can require adhesion to the fibers. Archaeological data show that staining technique in India and the Middle East for over five thousand years of history. Then dyes or minerals come from plants and animals, rarely treated.
Dyes are usually applied in an aqueous solution, and may require a mordant to improve the fastness of the dye on the fiber.
Dyes
Natural Dyes, Fabric Dyes, Reactive Dyes
Dynasty Chemicals (NingBo) Co., Ltd. , http://www.dychemco.com