The factory pays so much attention to the quality assurance of green laser pointer

The factory pays so much attention to the quality assurance of green laser pointer .
The emergence of the phenomenon of sensitized austenitic stainless steel can be again with the solution heat treatment to eliminate. Stabilizing treatment is designed for the austenitic stainless

steel containing stabilizer and a heat treatment process. The purpose of the stabilizer (Ti or Nb) in the austenitic stainless steel is carbon steel and Ti or Nb to form a stable TiC or NbC,

without the formation of Cr23C6, in order to prevent intergranular corrosion. Stabilizing treatment to the heating temperature is higher than Cr23C6 the solution temperature below the melting

temperature of TiC or NbC, generally in the 850 to 900 ℃, insulation 2 ~~ 4h. Stabilizing treatment can also be used to eliminate the tendency to intergranular corrosion of sensitized heating.

Knife-like corrosion causes. The mutual inspection should be done for green laser pointer .When the pulse width is too small, the pulse energy is very small, easily lead to incomplete penetration; sheet metal welding, the use of negative defocus amount, being away from the laser focus

in-depth welding pieces of internal heat concentrated, can easily lead to burn; the use of a coke and laser focus distance weldment some distance from the top-down input of the laser energy,

weldment and receives its power level, heat control, weld appearance, it should be using positive defocus amount . Orthogonal experiment, the defocus amount is fixed to a suitable value, the

welding current, pulse width and pulse frequency orthogonal experimental design. The pilot study has explored a range of welding current 80 ~ 84A, the pulse width range of 1.8 ~ 2.2ms pulse

frequency range of 18 ~ 22Hz. green laser pointer is obvious even in the distance in the dark night.Sometimes no preheating is needed for green laser pointer in the summer
Each of these factors determine the level of 3 values shown in Table 3. L9 (33) three factors and three levels orthogonal table arrangements for the test, the orthogonal experimental design is

shown in Table 4. Arrangements test in Table 4, label each specimen after welding, to prepare for the subsequent trials. Tensile test using the pulsed laser welding of thin stainless steel

products, used mainly consider its ability to withstand load, so the tensile strength as the main process parameters and Evaluation Standards. Will be orthogonal test sample per a norm welding test

plate welded to cut into two head of 60mm, the maximum tensile force in the tensile specimens of width 14mm, precision electronic tensile testing machine to test the pull off. When they use green

laser pointer for the star gazing.