Stargazers use usa green laser pointer to point at the stars

Laser surface engineering of laser surface engineering is the use of laser surface system performance surface layer technology, including laser melting and amorphization. Laser alloying and cladding, laser vapor infiltration, laser hardening, laser texture and other technology. The amorphous structure of the laser amorphization laser amorphous metal material with excellent performance, such as high strength toughness, high corrosion resistance, good electrical and magnetic properties. Compared with the amorphous, laser surface amorphization is an efficient and easy to control the feasibility of the amorphous layer formed in the shape of complex products on the surface of the constituency or area, to extend the practical application of the field of amorphous materials ; also expand the range of formation of the amorphous alloy system.  green laser pointer    also plays a significant role in exhibiting.
The laser rapidly solidified amorphous A key question is the preparation of large surface area of the amorphous structure. Tsinghua University, Zhongmin Lin et al. Laser pretreatment technology, new ways to explore a large area laser amorphization. Production and application of the laser amorphization laser amorphization domestic steel service life from about a year increased to more than two years. 2.2 laser alloying and cladding alloying and cladding and melting laser alloying and laser cladding of the notable features are: the constituency, on the matrix is less thermal damage to the workpiece distortion. Has been used in the repair of cold roll, marine engines, large seated valves for steam turbine long blade anti-erosion layer manufacturing and super alloy blades in jet engine manufacturing and repair applications is alloy with plasma spraying similar, but using performance to improve to 1-5 times. The production requirement of    green laser pointer      contains a lot of information.
The latest development is the preparation of compound gradient thermal barrier coatings. Thermal barrier coatings (TBCS) (main ingredient MCRAIY + ZRO), the main purpose is to blast furnace high temperature fuel nozzle, the jet engine blades (operating temperature from 930 degrees to 1430 degrees) and a variety of high-temperature measurement of first-class. The existing preparation methods such as ion plating and physical vapor deposition method. The existing problem is prone to large cracks, holes, combined with unsound, physical vapor method: The process is particularly complex, so the use of plasma deposition and laser hybrid process or to use the laser once melting process for the the TBCS preparation of a new technology ways. The mixed metal powder and ceramic powder (ZRO) disposable laser cladding. Stargazers use usa green laser pointer to point at the stars.
Laser heating and melting the status of ceramics and the alloy melt is non-wetting and different density characteristics, the system had a dense crack-free coating with a hierarchical structure. Laser remelting condensate on plasma sprayed thermal barrier coating densification treatment, but also ideal thermal barrier coating design requirements of the columnar organization structure. 2.3 Infiltration laser vapor laser vapor infiltration is essentially the use of the laser gas alloying process, mainly infiltration N-, C, B, or permeation, which is characterized by constituency infiltration, and an overall heating and laser heat treatment additive effect. Mainly used: the surface of light metals such as aluminum, titanium alloys such as titanium and Ti-15Mo alloy substrate by laser melting of the substrate through the nitrogen flow. Helium coating of the substrate surface alloying of TIN dendritic microstructure hardness up to 1000HV.     green laser pointer       can serve as an assistant to observe the stars.
2.4 laser hardening (1) laser transformation hardening) of laser transformation hardening is the use of the workpiece under the laser, through the self-quenching, access to tissue hardening. China's industrial examples of successful application, such as various types of engine cylinder (cylinder), laser hardening and increased life expectancy of 1 to 3 times; long pump barrel laser hardening technology, service life is increased by 1. (2) laser shock hardening) Laser shock hardening and laser phase transformation hardening, it is the use of the power density of 100 to 1012 watts per square centimeter of the high-energy laser beam in a very short period of time (~ 100ns), irradiated metal surface, so that the surface to produce the explosive vaporization of atoms escaping from the surface, resulting in kinetic energy of the pulse toward the formation of a large shock wave of material internal and dissemination of material microstructure and stress state is changed, so that hardened.     green laser pointer       is equipped with key ring.