Abstract: The present disclosure discloses a continuous stirring transmission mechanism for tempering furnace workpiece transmission, including a heat treatment furnace body and a furnace body support, the heat treatment furnace body is fixed to the furnace body support, the heat treatment furnace body includes a furnace body shell, a heat preservation and insulation system and a heating system, the heating system supplies heat to the heat treatment furnace body; the mechanism further includes a driving mechanism and continuous stirring rotating rod assemblies. The continuous stirring transmission mechanism is provide for tempering furnace workpiece transmission; the problems of non-uniform heating of metal workpieces in the tempering process can be solved, and a heat utilization rate is improved.

Abstract: An ultra-high strength spring steel including chemical components as follows: 0.45 to 0.5% of C, 0.15 to 0.35% of Si, 6.0 to 12.0% of Mn, 1.0-3.0% of Al, 0.30 to 0.50% of Cr, 0.10 to 0.25% of Mo, 0.10 to 0.50% of V, 0.025 to 0.04% of Nb, 0.005 to 0.015% of N, less than or equal to 0.03% of Pb, less than or equal to 0.03% of Sn, less than or equal to 0.03% of Zn, less than or equal to 0.03% of Sb, less than or equal to 0.03% of Bi, less than or equal to 15 ppm of O2, less than or equal to 15 ppm of H2, less than or equal to 0.02% of S, less than or equal to 0.02% of P, less than or equal to 0.2% of Cu, less than or equal to 0.35% of Ni, the balance is iron and inevitable impurities.

Abstract: A tunable distributed feedback (DFB) semiconductor laser based on a series mode or a series and parallel hybrid mode. A grating structure of the laser is a sampling Bragg grating based on the reconstruction-equivalent chirp technology. DFB lasers with different operating wavelengths based on the reconstruction-equivalent chirp technology are integrated together by a sampling series combination mode or a series/parallel hybrid mode, one of the lasers is selected to operate via a current, and the operating wavelength of the laser can be controlled by adjusting the current or the temperature, so that the continuous tuning of the operating wavelengths of the lasers can be realized. Various wavelength signals in parallel channels are coupled and then output from the same waveguide. An electrical isolation area (1-11) is adopted between lasers connected in series or lasers connected in series and connected in parallel to reduce the crosstalk between adjacent lasers.

Abstract: A tunable distributed feedback (DFB) semiconductor laser based on a series mode or a series and parallel hybrid mode. A grating structure of the laser is a sampling Bragg grating based on the reconstruction-equivalent chirp technology. DFB lasers with different operating wavelengths based on the reconstruction-equivalent chirp technology are integrated together by a sampling series combination mode or a series/parallel hybrid mode, one of the lasers is selected to operate via a current, and the operating wavelength of the laser can be controlled by adjusting the current or the temperature, so that the continuous tuning of the operating wavelengths of the lasers can be realized. Various wavelength signals in parallel channels are coupled and then output from the same waveguide. An electrical isolation area (1-11) is adopted between lasers connected in series or lasers connected in series and connected in parallel to reduce the crosstalk between adjacent lasers.