Yes. Please contact us ASAP if you have any problems after you get the goods.     Yes.The samples can be sent to you for checking quality.     Somesamples might be provided for free, some will charge for you.     Please kindly contact with us for details.     According to your requirements, quantity and the production lead time on goods. Â
I. High & Low voltage cabinets installation of power plant
1. 10KV high voltage switch cabinet installation of power plant
2. 0.4KV low voltage switch cabinet installation of power plant
3. Installation of generator protection system, synchronization system, transformer protection, H.V. motor protection, circuit protection in a power plant.
II. Electrical configuration testing items of power plant
1. Vacuum circuit breaker insulation resistance measurement, each phase circuit resistance measurement and AC voltage withstand tests of 10KV H.V. switch cabinet.
2. DC resistance measurement of CT and PT, polarity test, ratio test, AC voltage withstand tests in 10KV H.V. switch cabinet.
3. AC voltage withstand tests for whole 10KV H.V. switch cabinet.
4. AC resonant test for 10KV H.V. electric cable.
5. DC resistance measurement of generator stator and rotor.
6. Generator stator coil insulation resistance measurement and DC voltage withstand tests.
7. Generator rotor insulation resistance measurement.
8. Generator rotor AC impedance and power loss tests.
9. No-load characteristic test of generator
10. Generator checking phase sequence (fist checking phase and second checking phase separately).
11. Generator short circuit characteristic test.
12. Measurement of residual voltage of stator after automatic magnetic blow-out and switch opening of generator.
13. Generator shaft voltage measurement.
14. Generator simulate synchronization.
15. All of the second circuit checking, measuring, switch tripping & closing tests, protection fixed value setting, protecting the STG trip test and magnetic blow-out tripping test for Steam Turbine and generator.
III.Electrical problem troubleshooting in power plant
Problem Description: a coal mine`s 35KV H.T. switchgear OC protection tripped suddenly in He`nan Province, it caused sudden power lost of mine fan and endanger miner safety.
Auto-reclosing via switchgears` automatic reclosing function, through analysis, the reason is a set of 3000KW generator failure. Specific reason is: When the turbo-generator was running normally, exciting voltage lost suddenly, leading phase operation happened, the generator absorbed reactive power and lead to becoming motor running. Generator protection and power plant connecting line protection did not launch. After the generator absorbed a certain value of reactive power, the 35KV H.T. switchgear`s OC protection tripped.
Investigation: generator and power plant connecting line protection setting fixed value exceed the protection fixed value of 35KV switchgear side, it lead to nearby protection did not launch and override trip when generator failure.
Electrical Cabinet Care,10Kv Electrical Cabinet Care,0.4Kv Electrical Cabinet Care,Electric Governing Reconstructing Shandong Qingneng Power Co., Ltd. , http://www.qnpturbines.com
WHY CHOOSE JOERYFUN PRODUCTS?
We can not only produce standardized milling tools, but also design new types of products based on clients' requirements.Â
All our products are made by Axis grinding machines and end mills are inspected by Zoller machines.
Our marketing and service network is spreading all over the world and the quality of products has won unanimously favorableÂ
appraisal from numerous customers.
Product Description
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TYPE
Material
MG grain size
CO
Flexural strengthÂ
HRC45
YG10XÂ
0.7um
10%
3320N/mm2
HRC55
YL10.2 &WF25
0.6umÂ
10%
4000N/mm2Â
HRC60
K44 &K40
0.5um
12%
4300N/mm2
HRC65
H10F
0.5um
10%
4300N/mm2
Coating Type
Hardness(HV)
Thickness(UM)
Oxidation Temp.(ºC)
Friction Coefficient
Color
AlTin
3200
2.5-3
900
0.3
Black
Tialn
2800
2.5-3
800
0.3
Violet
TiSin
3600
3
1000
0.45
Copper
Naco
42(GPA)
3
1200
0.4
Bule
Specifications of Flat End Mill (mm)
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Cutting
Flute
Shank
A.O.L
Flute
d
l
D
L
F
 1.0×2.5×4D×50L×4F
1
2.5
4
50
4F
 1.5×3.75×4D×50L×4F
1.5
3.75
4
50
4F
 2.0×5.0×4D×50L×4F
2.0
5.0
4
50
4F
 2.5×6.25×4D×50L×4F
2.5
6.25
4
50
4F
 3.0×7.5×4D×50L×4F
3.0
7.5
4
50
4F
 3.5×8.75×4D×50L×4F
3.5
8.75
4
50
4F
 4.0×10×4D×50L×4F
4.0
10
4
50
4F
 5.0×12.5×5D×50L×4F
5.0
12.5
5
50
4F
 5.0×12.5×6D×50L×4F
5.0
12.5
6
50
4F
 6.0×15×6D×50L×4F
6.0
15
6
50
4F
 8.0×20×8D×60L×4F
8.0
20
8
60
4F
 10.0×25×10D×75L×4F
10.0
25
10
75
4F
 12.0×30×12D×75L×4F
12.0
30
12
75
4F
 14.0×35×14D×100L×4F
14.0
35
14
100
4F
 16.0×40×16D×100L×4F
16.0
40
16
100
4F
 18.0×45×18D×100L×4F
18.0
45
18
100
4F
 20.0×50×20D×100L×4F
20.0
50
20
100
4F
 
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    We are the professional manufacturer with more than 10 years experiences in this fields.
Q2. Which CNC machines do you use?
    We use German 'WALTER', Australian 'ANCA' grinding machine.
    Swiss PLATIT coating machine and technology.
    Zoller cutting tool measuring and inspecting machine to guarantee the precision of cutting tools is 100%      passed.
Q3. Can you provide ODM / OEM services?
     Yes, your logo or brand can by lasering or imprinted on the products.
Q4. Can you customize according to our requirements?
    Yes, we have a design team whom will help you design based on your drawing.
Q5. Can we be your distributor on our country?
     Yes, you can contact us for this matter.
Q6. Can I get some discount if I order more?
    Yes.The more you buy the more you save.
Q7. Do you offer after-sale service?
Q8. Do you provide samples?
Q9. When will you ship the goods?
Q10. Do you have stocks?
       Yes, we have a large inventory standard products which can meet market various requirements.
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Joeryfun HRC 55 Tungsten Carbide Milling Cutter
Numerical Control: CNC
Diameter: 1-20mm, Customized
Logo: Imprinting or Lasering
Trademark: JOERYFUN
Transport Package: Each Into a Palstic Tube, 10 Tubes / Group.
Specification: HRC55, 50-65 OEM
Origin: Changzhou, Jiangsu of China
HS Code: 8207709000
WELCOME TO JOERYFUN
Changzhou Joeryfun Precision Tools Manufacturing Co., Ltd. is located in Xixiashu Industrial Zone, Changzhou City, Jiangsu Province, China. Our company is equipped with advanced production lines for carbide tools.
Tungsten carbide 4 flutes square flat end mills for mold workingÂ
Raw Material and Coating Type:FAQ
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Q1. Are you manufacturer or trading company ?