The wire rope is a helical wire bundle made of steel wires with mechanical properties and geometric dimensions that meet the requirements. The wire rope is composed of steel wire, rope core and grease. A steel wire rope is a rope that is twisted into strands from multiple layers of steel wires, and then a certain number of strands are twisted into a spiral shape with the core as the center. In material handling machinery, it is used for lifting, traction, tensioning and carrying. The steel wire rope has high strength, light weight, stable work, not easy to break the whole rope suddenly, and reliable work. In 1834, European Olubert invented the world's first steel wire rope (smooth steel wire rope).
Wire ropes can be classified according to the material, surface condition, twisting method and purpose of the wire rope. Galvanized Wire Rope,Steel Wire Rope For Oil Field,Lifting Wire Rope,Traction Wire Rope Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaous.com
Graphene-based high-sensitivity sensor structure and performance Recently, Li Weiwei, a researcher from the Institute of Nanotechnology and Nano-Bionics of the Chinese Academy of Sciences, collaborated with researchers from the Institute of Physics of the Chinese Academy of Sciences to produce a graphene-based high-sensitivity nitric oxide gas sensor. Progress has been made. The researchers used micro-nano processing of graphene as an electrode to fabricate metal nanoparticle-modified and reduced graphene oxide sensing channels by means of AC electrophoresis. The role of gas molecules reduces the thickness of the Schottky barrier between graphene and metal particles, achieving high sensitivity detection performance from 1 ppb (1 part per billion) to 1 ppm (one millionth), for low power consumption At room temperature, NO high sensitivity breathing and environmental detection have potential application value. The device fabrication diagram and performance test are shown in the figure. The results of this work have been published in the ACS Nano (2011, 5 (9), pp 6955–6961). The research was funded by the National Fund Committee, the Ministry of Science and Technology, and the Suzhou Science and Technology Development Plan, and was supported by the Suzhou Nanotechnology Processing and Testing Platform.
Classified by material
1. Carbon steel wire rope is made by twisting high-quality carbon structural steel wire as raw material.
2. Stainless steel wire rope, manufactured and twisted with stainless steel wire as raw material.
Graphene is a two-dimensional nanostructure in the form of a honey honeycomb composed of a single layer of carbon atoms. It has a large specific surface area and good carrier conductivity. It is expected to be obtained in a highly sensitive, low-power room temperature biochemical sensor. widely used. However, due to the interaction between the sensing substance and graphene, such as adsorption, charge transfer and desorption, there are still a lot of work to be explored in terms of effective fabrication methods and performance optimization of the device. Nitric oxide (NO) gas is a harmful gas on the one hand, and an important biological function information transfer molecule on the other hand. Timely monitoring changes in NO concentration of exhaled gases can provide early warning of the onset of asthma and other lung diseases. However, current NO breathing gas testing instruments are bulky and expensive, and most of them are concentrated in large medical institutions and cannot be promoted to a wider extent.