101results about How to "Guaranteed diffusion" patented technology

The invention discloses a high-protection pouring bus duct which comprises a bus duct body, a lower shell, a heat dissipation assembly, first damping assemblies and second damping assemblies. Bus bares are arranged in the bus duct at equal intervals, cavities are evenly distributed in the bus duct, the cavities of the bus duct are located between the adjacent bus bars, and a protection plate is arranged on the outer surface of the bus duct. An upper shell is arranged at the upper end of the lower shell, and the outer surface of the protection plate is slidably connected with the inner wall surfaces of the upper shell and the lower shell; the heat dissipation assembly is arranged in the cavity of the bus duct; the first damping assemblies are arranged at the bottom end of the protection plate and the upper end of the bottom plate of the lower shell respectively; and the second damping assemblies are symmetrically arranged at the lower surface of the protection plate and the upper surface of the bottom plate of the lower shell. The high-protection pouring bus duct has the advantages that the high-protection pouring bus duct is extremely high in anti-vibration performance and good inheat dissipation performance, the aging rate can be decreased, the service life can be prolonged, flame-retardant and damp-proof effects can be realized, the practical performance can be improved, andthe high-protection pouring bus duct is convenient to use.

The invention discloses a tissue homogenizing mechanism based large-heat-input gas electrical vertical welding gas shielded flux cored wire. The tissue homogenizing mechanism based large-heat-input gas electrical vertical welding gas shielded flux cored wire comprises flux-cored wire skin and powder, wherein the flux-cored wire skin adopts a cold-rolled thin steel strip, the powder accounts for 15-25% of total mass of the flux-cored wire, and the powder consists of the following components in percentage by mass: 1-3% of one or two of titanium dioxide or rutile, 2-6% of feldspar, 1-4% of sodiumsilicate, 1-4% of lithium oxide, 4-10% of low-carbon ferromanganese iron, 4-8% of ferrosilicon, 1-5% of aluminium powder, 2-5% of ferro-molybdenum, 2-6% of nickel powder, 4-8% of rare-earth silicon,0.05-0.1% of boron powder, and the balance of reduced iron powder. The structure homogenizing mechanism based large-heat-input gas electrical vertical welding gas shielded flux cored wire can be applied to large-heat-input gas electrical vertical welding of 100 kJ/cm or more for a medium-thickness steel plate, meets large-heat-input gas electrical vertical welding of the steel-grade structural steel medium-thickness plate of 690 MPa or lower, and can reach maximum welding heat input of 300 kJ/cm.