Major product "burst valve for nuclear power plant" product prototype passed the appraisal

[China Instrument Network Instrument R&D] On February 3, 2018, a major project of pressurized water reactors jointly developed by Shanghai Nuclear Engineering Research and Design Institute, Dalian Dagao Valve Co., Ltd. and China Institute of Engineering Physics, was used for nuclear power plants. "Bursting valve" product prototype passed the appraisal jointly organized by China Machinery Industry Federation and China General Machinery Industry Association.

The appraisal committee consists of 13 experts from China National Nuclear Corporation, China National Nuclear Power Corporation, the National Nuclear and Radiation Safety Center of the Ministry of Environmental Protection, Dalian University of Technology and Nanjing University of Science and Technology, including Academician Ye Qichen and Academician Cheng Yidong. The Ministry of Science and Technology, the Energy Bureau, and representatives of local governments, employers, R&D units, and related personnel attended expert product appraisal meetings.
The appraisal committee unanimously held that the prototype of the blast valve product developed was successful, with complete independent intellectual property rights, filling the gaps in the domestic market and occupying the leading international level, and can be promoted and applied at nuclear power plants.
China's first self-developed explosives valve and its series of the world's largest specifications (DN450) have many innovative features: the key components - cartridge drive device, can operate reliably under harsh environment conditions such as high temperature, high humidity, and high radiation of nuclear power; Established advanced methods for calculating ballistic trajectory for blasting valves and dynamic simulation analysis methods for complete machines and key components; independently developed blasting valve graphite sealing structure and piston dynamic sealing structure to ensure the realization of valve safety functions; and overcoming the forging of shear caps. Process to ensure shear cover material properties.
The achievement of scientific and technological achievements in the "burst valve for nuclear power plants" is a manifestation of the nation's overall strength, a model of deep integration of military and civilians, a breakthrough in the battle for the domestic nuclear power industry and a standard achievement in the autonomy of key equipment for nuclear power. It is also an advanced nuclear power system in China. "Going out" made a contribution.
(Original title: Significant special "burst valve for nuclear power plant" product prototype passed the appraisal)

ZXK50A.ZXK80 CNC Drilling And Milling Machine Center

ZXK50A, ZXK80A are widely used in military, automobile, railway, bridge,    rock drilling, locomotive, oil and other industries, focusing on  processing  large torque, heavy cutting and other parts

1.The series products are   patented technology  new products of R&D manufacturing  . on the basis of general CNC Drilling Machine  ,  realizes the function of automatic tool changing and spindle two level automatic shift . it also can be realized automatically  processing of large torque, heavy cutting, high efficiency . it also is preferred replacement products of drilling parts processing .


2. function characteristica of matchine                               

1)Well constructed with special casting ,with high-rigid structure . useing of  Vertical Machining Center lathe bed and a sliding seat , so it has high rigidity structure.


2)The guide rail and the work table are quenching and grinding, plastic pate matched with the guide rail lubrication, automatic Intermittent lubrication , feeding smoothly without crawling, keeping good accuracy.


3)Machine tool with three axes are the ball screw drive, connection mode for motor and screw is direct connection.


4)Can be equipped with  Guangzhou CNC system .model GSK980MDa, support  milling, boring, drilling cycle processing.


5)7 " widescreen color LCD ,operation is more easy                    


6)Spindle box full gear transmission shift, enhances the rigidity of the machine tool, strong cutting, tapping capacity: M30.


7)The machine can be configured 12 no mechanical hand disc knife library, you can also configure the 16 gear cam manipulator for knife library, can realize of the ATC function in automatic processing.


8)Three axis drive device are DA98 series digital servo by Guangzhou CNC Company produced.

Spindle servo is DAY3 series digital spindle servo by Guangzhou CNC Company produced


9)Automatic processing, one person can operate more machines, saveing manual labor.


10)Big torque ,high efficiency,high rigidity


11)Max Spindle torque 350NM

 

12)ZXK80 Max spindle torque 450NM,Big torque  high righdity   heavy cutting


II;

 

ZXK80picture

zxk50A



 

 

 

 

 


 

CNC Drilling And Milling Center

Drilling And Milling Machine Center,CNC Drilling Milling Machine,Mini Milling Machine,Vertical Milling Machine

NingXia DaHe Machine Tool (Group) Imp And Exp Co.,Ltd , https://www.nxdhjcmachine.com