Following the completion and development of CC 10kA high temperature superconducting current lead prototypes in the International Thermonuclear Experimental Reactor Project (ITER) completed by the Institute of Plasma Physics, Chinese Academy of Sciences, January 2015, June 26 to July. On the 13th, the ITER large-scale superconducting feeder system procurement package undertaken by the plasma chamber was re-informed: The TF 68kA high-temperature superconducting current-conducting lead prototype successfully passed full-current 68kA steady state and 75kA overcurrent operation. The test results show that the 50K helium cooling flow requirement of the high temperature superconducting current leads is approximately 0.068g/s/kA, which is better than the ITER design requirement of 0.071g/s/kA; the 5K terminal resistance is less than 0.2+/-0.1 nanoohms , better than the design requirements of 2 nanoohms. The successful testing and performance verification of the TF 68kA high-temperature superconducting current-conducting lead prototype symbolizes that Plasma has mastered a complete set of core technologies for the design, development, manufacture, and testing of this super-current high-temperature superconducting current-carrying lead, and it is also a large current. The production shaping of the high-temperature superconducting current leads has paved the way. Dr. Seungje.Lee from the ITER organization in France and Professor Y.Yang from the University of Southampton in the United Kingdom participated in the field test. In addition, for the first time in this test, two real-time test systems were simultaneously set up at ITER and the University of Southampton so that current lead experts from ITER and Southampton University can all participate in and witness the 68kA and 75kA power supply of the plasma remotely. Test work. High-temperature superconducting current leads are one of the core components of the ITER large-scale superconducting magnet feeder system (FEEDER) procurement package. It covers complex system projects such as superconductivity, low temperature, vacuum, mechanical process, measurement and control, and power supply. The ITER TF 68kA high-temperature superconducting current leads are designed by one of the chambers and are processed by the company. Its design involves multi-disciplinary knowledge, needs to meet the requirements of deep cryogenic, high vacuum, high voltage insulation, low heat load, low superconducting joint resistance and other aspects of work requirements, large design and calculation challenges, complex manufacturing processes, high quality level requirements (ITER quality level Level 1 parts). The R&D team successfully solved key technical issues such as precise temperature-controlled vacuum brazing, multi-temperature gradient welding of superconducting materials, electron beam welding of heterogeneous performance materials, machining of complex heat exchangers and long-stroke thin-walled sleeves, and precision assembly. Under the full site quality testimony of ITER International and its commissioned third-party BV company, the technical and quality control personnel in the first-class office and the company focused on controlling the quality of each process, completing the manufacturing and assembly of components for nearly a year. In mid-June, the low temperature superconductivity test hall was transported to the low temperature electrical performance test preparation. Under the leadership of the concern and support, the one-chamber scientific and technical personnel researched day and night, relied on the cooperation of the related engineering and technical personnel of the cryogenic, meteorological, two-compartment, eight-compartment, ITER magnet department to overcome various difficulties and complete the CODAC interlock system. Integrate and debug multiple systems such as traditional CODAC, fast control, and quench protection system. Using the CTB SBB prototype housing of the ITER TF superconducting feeder as the vacuum and cryogenic vessel of the TF current lead prototype, provides a real operating environment similar to ITER, allowing the vacuum vessel to reach a level of 1E-5Pa during the experiment. The temperature is lower than 90K. It took three weeks to implement a total of eight major test items for TF high temperature superconducting current lead prototypes and 21 test subprojects, making this round of low temperature performance experiments successful. The first-hand experimental data obtained will provide an important reference for the operation of high-temperature superconducting current leads. This test is also the first 75kA current of the 80kA power supply aluminum busbar bridge for more than one hour of power testing. During the high-current test, the temperature rise of the busbar is within the design range, which lays the foundation for the next step in the test of the ITER series. The long-term stable operation of the cryogenic system during the test also made an important contribution to the stable electrification of the TF prototype. In recent years, Plasma has successively completed 13 pairs of EAST 14kA high-temperature superconducting current leads, ITER 10kA, 52kA, and 68kA high-temperature superconducting current lead test pieces, and Russian National Nuclear Research Institute batched 12kA and 6kA high-temperature superconducting current leads. The development task of the strong magnetic field of 16.5kA high-temperature superconducting current leads and CC 10kA high-temperature superconducting current-conducting current lead prototypes marks that the institute has mastered a whole set of core technologies for the design, R&D, manufacture and testing of ultra-large current capacity high-temperature superconducting current leads. .
Double
layer roof Roll Forming Machine
Double Layer Roof Roll Forming Machine is a
kind of machine that can make two different types of roof sheet. It has the
advantage of saving space,easy operation. And especially Double layer roof roll
forming machine is welcomed by the customer with limited area and
site operation problems. In addition, the machine can be made according to
customer`s design, fully meet customer`s demand.
Description
of Double layer roof roll forming machine:
Thickness
of material: 0.3-0.8mm
Main
structure:350H
steel
Wall
plate: 16mm
Diameter
of shaft: Ф70 solid
Chain:
P=25.4
Bear:
6210
Electric
motor power: 4KW
Reducer:
5# cycloid reducer
Roller:
9-11rows
Forming
speed: 8-12m/min
Material
of Rollers: Carbon Structural Steel Hard chromium Plating on the surface
Cutting
type: Hydraulic shearing
Motor:
380V, 50HZ/3 phase
Electrical
part:CHINT,Delixi
Hydraulic
motor: 3KW
Tail
cutting material: Delta PLC-14ES
Size
of machine: 5.8m*1.4m*1.4m
Warranty: 12 months
limited warranty
Delivery: 30 days after receipt of advance
payment
Package:
Plastic packing and nude in the container
Payment
Term: T/T, L/C, Trade assurance
FAQ:
1. Q:
Are you a manufacturer?
A:Yes, we
are manufacture with roll forming machine factory.
2. Q: How
should I do if I would like to order my target machine?
A: Just
send us your design drawing if you have. Or tell us your design idea. We
arrange our engineer to drawing it for your confirmation.
3. Can you
use other brand of spare parts for me if i want?
A: No
problem if you want to pay the money.
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