It is learned from the Shanghai Institute of Ceramics, Chinese Academy of Sciences that the yttrium aluminum garnet and doped yttrium aluminum garnet ceramic planar waveguide developed by the Lijiang team as the gain medium of the laser amplifier have been verified by the HD pine team of China Academy of Engineering Physics Laser output at 327 megajoules single pulse at 100 Hz repetition rate. It is understood that this is the international maximum single-pulse energy output of the ceramic planar waveguide prepared by non-aqueous casting. Relevant achievements as the cover story recently published in the "China Optical Express", the American Optical Society official website also made a special report on this.
It is understood that the laser diode pump is the key to achieving high efficiency laser output. The use of planar waveguide materials as a gain medium laser has the advantages of high bulk laser power and fiber laser energy conversion efficiency.
Earlier, the Shanghai Silicate Research team in the international community for the first time using casting and ceramic sintering technology to overcome the shortcomings of single crystal bonding technology to achieve the integrated fabrication of planar waveguide structure of laser ceramics. At present, the linear transmittance of the fabricated planar waveguide ceramic has been higher than 84% at the working wavelength of 1064 nm (close to the theoretical transmittance) and the thickness of the core (waveguide layer) can be controlled at 200 to 300 μm.
HD pine said that the planar waveguide ceramic laser amplifier not only high output energy, high efficiency, and small size, can achieve the laser system, miniaturization, lightweight, high-energy all-solid-state laser in the next few years the main direction of development.
Description:
AWS E7018 Welding Electrodes is a iron powder low hydrogen type Carbon Steel Welding Electrodes.It can be used for all postion welding,small spatters, easy restrike arc, high welding efficiency, fine appearance and slag easy to remove.
Application:
Suitable for welding important medium carbon steel and low alloy steel, such as 16Mn steel, parts of ships fabricated by A,B,D,E grade steel as well as parts of boilers presssure vessels and pipes.
Attention:
a. Welding electrodes should be backed at the temperature of 350℃ for one hour before welding, and then use them when baking.
b. Before welding, the weld metal must be cleared away impurities, such as rust oil, moisture, etc.
c. Short arc and narrow weld bead are recommended in welding.
Packing:
2.5mm*300mm 2.5kgs/inner box, 8inner boxes/carton=20kgs
3.2mm*350mm 5.0kgs/inner box, 4inner boxes/carton=20kgs
4.0mm*400mm 5.0kgs/inner box, 4inner boxes/carton=20kgs
5.0mm*400mm 5.0kgs/inner box, 4inner boxes/carton=20kgs
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Dingzhou Jinlong Metal Production Co., Ltd. , https://www.weldingelectrodefactory.com