AIS is a new type of navigation aid system. With AIS, ship drivers can know the navigation of other ships in the waters, greatly reducing the dependence on the visual judgment of the ferry crew. Especially in the bad weather conditions such as foggy weather, dark nights, heavy rain and snow, etc., "Clairvoyance" has the function of "seeing eye". Under the condition that the line of sight is not clear enough, the ship can also grasp the navigation status of the water in time through AIS and reduce the collision. The possibility of an accident.
In order to better protect the safety of life and property of ships and crews, Ningbo Maritime Safety Administration has worked hard to implement the “people's livelihood maritime affairs†and determined that 59 ships have a great impact on society, safety and environmental protection. The key vessels engaged in public welfare transportation have become the first free installation of AIS. The beneficiary of the device.
According to reports, the installation of the first batch of AIS free subsidy equipment will last for one month. Ningbo Maritime Bureau will come to the bow of each ship together with Ningbo ship inspection agency and equipment installation company to provide one-stop free installation, commissioning and The inspection service, the method of using the driver's equipment of each ship by hand, allows the Huimin policy to be implemented.
Heat Treated Steel Bar And Tube
HEAT TREATED STEEL BAR AND TUBE
Heat treated steel bar is produced by heating and cooling in different temperature based on the steel grades to improve the steel bar mechanical properties or machinability for various industrial applications. Heat treated steel bar includes annealed steel bars, Normalized Steel Bar, quenched and temper qt steel bar.
Annealed Steel Bar has better ductility and lower hardness, which can be easier to be machined. The annealing processing is usually widely used for steel grade with higher carbon content above 0.5%. However, some low carbon steel also requires to do annealing for special usage such as 20CrMnTi gear steel. For some special material such as 20CrMnTi gear steel and GCr15 such bearing steel, spheroidizing annealing is often required.
Normalized steel bar sometime is also one kind of annealing processing. It mainly changes the grain to remove the impurities in steel and improves the strength and hardness. For some hot rolled steel bars, to keep the basic mechanical properties, normalizing is often used.
Quenching and Tempering, abbreviated as Q&T is a king of processing that strengthen or harden steel bars by heating the materials and then cooling in water, oil or other liquid medium, that rapidly the change from austenite to perlite to get the proper properties for various usage. The quenched & tempered steel bar materials are usually with carbon from 0.30% - 0.60%, it is widely used as merchant bars in components of various machines.
Our advantages on producing heat treated steel bars:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Wide range of Cold Drawn Steel Bar sizes: from 10mm to 150mm
3) Different cold drawing medias powder or oil to get different surface
4) Straightening machines to get better straightness up to 0.5mm/m
5) Grinding and polishing machines to get better roughness upto 0.4um
6) Heat treating furnaces to adjust the mechanical properties
7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
8) Multiple packages to avoid broken packages and anti-rusty
Astm A193,Round Steel Tubing,Heat Treated Steel Tube,Heat Treated Steel Bar And Tube
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