HuiJie Steel Pipe
manufacturing High precision cylinder tubes and shaft,The steel tubing wide
application for
telescopic cylinders,Hydraulic cylinders,pneumatic cylinders and
shafts.The raw materials from seamless and
welded hot rolled tubes by cold drawn or cold rolled process and stress
relieved and annealed, The inner surface
roughness after honed and
skiving roller burnish.
The
honed steel tubes are produced according to the technical standard of
CDS EN10305-1/DIN2391 cold drawn precision steel
tubes
CDW EN10305-2/DIN2393/DIN2394 Cold drawn welded
precision steel tubes
DOM ASTM A513 welded drawn over mandrel steel
tubing
The normal
steel grade:E355 S355J2,CK45/AISI1045,CK35/AISI1035
The max
cylinders tubes,shaft tubes,roller bush can reach OD329mm,length 12000mm
Hydraulic Cylinder Tubes,Hydraulic Cylinder Pipes,Seamless Hydraulic Cylinder Pipes,Seamless Steel Hydraulic Cylinder Tubes Ningbo Huijie Steel Pipe Manufacturing Co.,Ltd , https://www.hjbearingtube.com
Harmonic power standard sources are widely used at all levels of measurement technology institutions, power system relay protection teams, and electric power research institutes. As a type of measurement standard equipment, the harmonic power standard source can be used to verify pointer-type indicating instruments, AC sampling transmitters, relay protection equipment of power plant substations, and meter verification. Currently, there are not many special equipments for harmonic standard power source calibration, and the coverage of parameters is incomplete, and a large number of equipments are needed to complete the calibration work.
In order to meet the actual calibration requirements, the “Harmonic Power Standard Source Calibration Device†and “Single-Phase Harmonic Power Analyzer†developed in this project have a measurement function that can cover all parameters of the object to be calibrated, further improving single and three-phase Harmonic power standard source pass-through system has effectively improved the measurement level in this field.
(Original title: A National AQSIQ Scientific Research Project Undertakes Acceptance by Fujian Province Metrology Institute)
Fujian Metrology Institute undertakes the successful inspection of the project and can be used to verify the energy meter
[China Instrument Network Instrument R&D] Recently, the AQSIQ scientific and technological project “Development of harmonic power standard source calibration device based on virtual instrument technology†undertaken by the Fujian Provincial Institute of Metrology (hereinafter referred to as “Fujian Province Metrology Instituteâ€) (No.: 2014QK019) Through acceptance, the developed prototype has reached the domestic leading level of similar equipment.