N52 Permanent Magnet Disk Black Epoxy

Model NO.: D30x5
Delivery: 15-29 Days
Advantage: Standard Producing Process Strict Quality Checking
Tolorance: Big Size 0.1 Small Size 0.03/0.05
Trademark: shine
Transport Package: Suitable for Sea or Air Delivery
Specification: customized
Origin: China Zhejiang
HS Code: 8505119000
 China Countersink Sintering NdFeB Ring  Speed Sensor  Magnet   Anti Corrosion Meter Nickle, Zinc



Advantages


1 Standard row material and Advanced Recipe 

2 Standard producing process and strict quality checking

3 Trained working staff 

4 Manufacturing experience 20 years
 
 
 5  Competitive price,stable quality,quick delivery,good service  

  
  Detailed specifications:

1.Size: Customized .

2.Grade:All kind of grade with N35 - N52, 35M - 50M, 35H - 48H, 30SH - 45SH, 
                                               28UH - 40UH, 30EH - 35EH, 30AH - 33AH.

3.Material:Rare earth Neodymium iron boron magnet

4.Performance: High , high coercivity, low temperature coefficient .

5.Coating:Black Nickel, Zinc, Blue Zinc, NiCuNi, NiCuNi+Epoxy,Gold, etc.

6.Application:Motor assemblies, Automobile,Wind generator,MRI,Speaker,
Sound Equipment Earphone microphone ,Sensor, Scanner, Camera Lens, 
Embedded Object,Magnetic separators, linear actuators, assemblies, servo 
motors, DC motors (automotive starters), computer rigid disc drives, 
 
 7.Certificates:  ISO9001:2000,ROHS    




About Neodymium Iron Boron Magnets


    Collectively known as Neodymium Iron Boron magnets,it is alloy of the  Lanthanide 

group of  elements  that  Composed  by   neodymium,  iron,  boronand  a  few  transition

metals like Dysprosium,   Gallium .etc,  Through  these  melting ,pressing,  sintering,

machining, Coating, magnetizing processes,  to form those what we called  block,  bar,

Cubic, cylinder, ring,arc shapes.


   
  NdFeB magnets are available in sintered as well as bonded forms.  The bonded form

need almost no machining yet tolerance is small,  The flux of the bonded form  is up to 

10 MGOe  while sintered form available to reach 52 MGOe. The sintered form usually 

requires some finishing operations in order to suit mechanical tolerances.



  Plating NdFeB is a difficult process, coating,acidification,passivation each process 

should be acidity soft and temperature friendly . Zinc, Nickel, NiCuNi  and  Epoxy  

plating providegood corrosion resistance  and nice appearance for NdFeB magnets.
 
 
 
  All Sintered NdFeB magnets are anisotropic that can only be magnetized in the

orientation direction. Bonded magnet is isotropic and can be magnetized in any 

direction  magnetizing range is from 1koe-100koe which depend on magnets' 

size, grade and what the magnets for. 


 
   As the most advanced commercialized permanent magnet materials, NdFeB magnets 

are available in a number of different grades that span a wide range of properties and

application requirements. 
 


NdFeb Magnet Chart

     
Grade Br  
(MT)		 Hcb 
(KA/m)		 Hcj
(KA/m)		 Bh
(MGOe)		 TW 
ºC
N-35 1170-1120         876 955 33-36 80
N-38 1220-1250         876 955 36-39 80
N-40 1250-1280         876 955 38-41 80
N-42 1280-1320         876 955 40-43 80
N-45 1320-1380         876 955 43-46 80
N-48 1380-1420         876 955 46-49 80
N-50 1400-1450         828 876 48-51 80
N-52 1430-1480         828 876 50-53 80
33  M 1130-1180         836 1114 31-34 100
35  M 1170-1220         868 1114 33-36 100
38  M 1220-1250         899 1114 36-39 100
40  M 1250-1280         907 1114 38-41 100
42  M 1280-1320         907 1114 40-43 100
45  M 1320-1380         907 1114 43-46 100
48  M 1360-1430         907 1114 46-49 100
50  M 1400-1450         907 1114 48-51 100
33  H 1130-1180         836 1353 31-34 120
35  H 1170-1220         868 1353 33-36 120
38  H 1220-1250         899 1353 36-39 120
40  H 1250-1280         907 1353 38-41 120
42  H 1280-1320         907 1353 40-43 120
45  H 1320-1380         907 1353 43-46 120
46  H 1330-1380         907 1274 44-47 120
48  H 1370-1430         907 1274 46-49 120
30SH 1080-1130         804 1592 28-31 150
33SH 1130-1170         820 1592 31-34 150
35SH 1170-1220         860 1592 33-36 150
38SH 1220-1250         907 1592 36-39 150
40SH 1250-1280         907 1592 38-41 150
42SH 1280-1320         907 1592 40-43 150
42SH 1310-1350         907 1592 42-45 150
45SH 1320-1380         907 1592 43-46 150
28UH 1020-1080         764 1990 26-29 180
30UH 1080-1130         804 1990 28-31 180
33UH 1130-1170         852 1990 31-34 180
35UH 1180-1220         860 1990 33-36 180
38UH 1220-1250         907 1990 36-39 180
40UH 1240-1280         907 1990 38-41 180
28EH 1040-1090         780 2388 26-29 200
30EH 1080-1130         812 2388 28-31 200
33EH 1130-1170         812 2388 31-34 200
35EH 1170-1220         860 2388 33-36 200
38EH 1220-1250         860 2388 36-39 200
30 AH 1080-1130         812 2785 28-31 240
33 AH 1130-1170         812 2785 31-34 240




Testing



 
Plating Color Plating Thickness  Working Temprature SST Test PCT  Test
NiCuNi Bright 15-35um ≥200 ≥96hr 48hr
Zinc platinum like /blue  5-15um ≥160 ≥48hr  
Epoxy black 15-35um ≥120 ≥96hr 24hr

 

Washed suspensions of Escherichia coli were exposed to different concentrations of chlorine dioxide at various temperatures. Platings of the mixtures to evaluate the numbers of surviving cells were made after 5–300 sec of contact. Survival data were best fitted by a reaction model that is first order with respect to cell concentration and to exposure time. Bactericidal rates were found to increase markedly with both increased disinfectant concentrations and increased temperatures. Activation energies at each concentration of chlorine dioxide are reported.

The Oil & Gas Industry Disinfection

Chlorine Dioxide Generator For Oil Gas, Oilfield Injection Water Treatment, Cooling Water Sterilization, Mining Water Disinfection

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