[ China Instrument Network Instrument Development ] On October 10, 2018, the “Global Geodetic Benchmark Dynamic Correction and Service†project in the field of Earth observation and navigation technology of the National 863 Program successfully passed the acceptance inspection organized by the Ministry of Science and Technology.
The project is aimed at non-autonomous benchmark parameter determination, non-multiple technology fusion, and static situational regional benchmarks in the geodetic benchmark based on single GPS technology. It has been developed for the global dynamic geocentric coordinate reference frame maintenance and elevation benchmark modernization. The technical research of the year, the construction of a three-dimensional variation inversion model of the Earth's centroid combined with seafloor pressure and GNSS uniform monitoring, land site distribution equilibrium evaluation model, global plate motion model, global frame point nonlinear change motion model, etc. The model solves the technical problems of dynamic global reference system parameter determination, multi-technology and multi-data source fusion, global dynamic geocentric coordinate frame refinement, global benchmark linear and nonlinear dynamic maintenance, big data solution, etc. Framework fusion processing software and geocentric coordinate reference framework distributed data management software prototype.
Through the implementation of this project, China has formed an independent and independent global framework dynamic construction and maintenance theory and method system. Most of the project technical methods have reached the world advanced level, and the relevant results are equivalent to the same products in the world, in order to meet the national economic construction, national defense construction, science. The research and the modernization of the surveying and mapping industry have provided technical support for the urgent need for high-precision dynamic benchmarks, providing a unified benchmark framework for the implementation of the National “Belt and Road†initiative. The project results have an important role in building and maintaining the Beidou global benchmark with Chinese characteristics. It can promote the development of Beidou related industries and has broad application prospects. Some of the results have been successfully used in national benchmarks, major projects and provincial local benchmark establishment and maintenance. .
(Original title: China's own centimeter-level geocentric coordinate reference frame provides a benchmark framework for the “Belt and Roadâ€)
Solenoid Armature makes an very important role in complete Solenoid Valve compared to other solenoid valve parts, so the quality of the armature directly related to the life of complete solenoid valve. Hereby, let me introduce how we control armature quality from character of raw material and how we produce during production.
We also called solenoid armature as solenoid valve armature, solenoid valve stem, solenoid valve core, solenoid Plunger Tube Assembly, solenoid armature tube assembly, Solenoid Armature Assembly, Electromagnetic Valve armature, etc, but all in all, the solenoid armature looks like an opener and closer even like a head in the solenoid valve.
The armature can be divided into four parts roughly, they are fixed core(who with or without shading ring depending on DC or AC voltage type), plunger tube and tube base(has option of stainless steel and brass), mobile plunger(installed with inner and outer spring, top and bottom seal).
The fixed core and movable plunger are made of high magnetic stainless iron, such as 430FR, has good performance of attraction and rust-proof. During production, we doing inspection after each procedure.
The plunger tube is made of H62 brass or seamless 304 stainless steel, the wall thickness from 0.20mm to 2.5mm available. All raw material is inspected before put them into our warehouse.
The plunger tube base is made of H59 brass or 304 stainless steel, with high performance, also we inspected each lot before put them in warehouse.
According to application requirement, choose suitable welding to connect each part, such as laser soldering, argon-arc welding, silver soldering.
The seal can be NBR, Viton, EPDM, Silicon, Teflon, etc. All can be customized as your requirement.
Except this,we also sale for Auto Drain Valve , Air Suspension Valve ,solenoid armature assembly, Forged Brass Valve .
Welcome your any inquiry, we can produce as per your requirements.