Stainless Steel Precision Machining
Stainless steel materials have certain strength, corrosion resistance and toughness, so stainless steel parts are very suitable for many industrial occasions. Precision stainless steel machining parts occupy a large proportion in the stainless steel parts and CNC machining industries, and are used in almost all industries such as machinery, aerospace, equipment, construction, daily necessities, and automobiles. At present, in Precision Machining Parts, the most used stainless steels are 316, 304 and 303 and so on. Stainless steel 316 has the best corrosion resistance and the highest material and processing cost. Stainless steel 304 has moderate corrosion resistance and material and processing costs. Stainless steel 303 has lower corrosion resistance than 316 and 304, but the material and processing costs are also the lowest. . Of course, there are many other stainless steel materials, such as 201, 202, 302 and so on.
SCZY has more than 10 years experience in precision CNC machining. Especially in the processing of stainless steel 316, 304 and 303, we have very rich experience. Whether it is milling, turning or composite turning, our normal machining accuracy can reach ±0.01mm. If higher precision is required, we can cooperate with grinding Processing, up to ±0.002mm.
Stainless Steel Machining, CNC Stainless Steel, Stainless Steel Milling, Stainless Steel Turning, Metal Machining, CNC Metal, Metal CNC Shenzhen SCZY Technology Co.,Ltd , https://www.szsccasting.com
The relevant research results were published on the ACS Nano (DOI:10.1021/acsnano.7b01390).
The rapid development of flexible, miniaturized, and intelligent electronic products has promoted the progress of energy storage devices such as micro-supercapacitors. Traditional micro-nano processing technologies, such as wet lithography, are cumbersome to operate, complicated to process, and costly, and are not suitable for mass production. In addition, a micro-supercapacitor prepared with graphene oxide as a precursor also requires steps such as chemical reduction or thermal reduction. Therefore, the high-efficiency, low-cost, large-scale production of graphene micro-capacitor devices still faces many challenges.
The research team used UV-reduced graphene oxide technology to realize the efficient reduction of graphene oxide and the patterning of graphene micro-electrodes in one step, and mass-produced different configurations of micro-supercapacitors. Different from existing preparation technologies, such as wet lithography and spray printing, this technology has the advantages of simple operation flow, low cost, mild conditions, etc., and can efficiently build different configurations and integrated miniature power sources. The prepared capacitors exhibited high scan rate (200 V/s), energy density (7.7 mWh/cm3), and power density (312 W/cm3) in the ionic liquid. This work provides a new idea to simplify the preparation of graphene micro-supercapacitors in one step, and confirms that the electrochemical performance of the device can be significantly improved by regulating the infiltration performance of the interface between the membrane electrode and the electrolyte.
The above work was funded by the National Natural Science Foundation of China, the National Key R&D Program, the National Youth Talents Program, and the Natural Science Foundation of Liaoning Province.
(Original title: Dalian Institute of Photochemical Reduction of Graphene Microcapsule Supercapacitor Research Progress)
Researchers use reduced graphene oxide to make micro-supercapacitors
ã€Chinese Instrument Network Instrument Development】 Recently, Wu Zhongshuai, a researcher of the 2D Materials and Energy Device Research Group of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, used UV-reduced graphene oxide technology to realize the reduction of graphene oxide and graphene pattern in one step. Micro-electrodes were constructed and various configurations of micro-supercapacitors were prepared in batches.