41results about How to "Reduce darkening" patented technology

The polyester-based resin composition of the present invention comprises a polyamide resin, a polyester resin containing an antimony compound and a compound selected from the group consisting of inorganic acid salts and hydroxides of group-1 or -2 metals of the periodic table and transition metals. In the polyester-based resin composition, the phosphorus atom concentration, the antimony atom concentration, and the blending ratio of the inorganic acid salt or hydroxide to the phosphorus compound are regulated so as to satisfy the specific relationships to effectively prevent the darkening due to the deposition of antimony metal, thereby providing the polyester-based resin composition having excellent gas barrier properties and a good appearance with minimized darkening.

The invention discloses a laser shock life-prolonging method of the tungsten electrode of a short-arc lamp. The method comprises: cleaning a workpiece with deionized water, blow-drying the workpiece with nitrogen, and placing the dried workpiece in a drying box at the temperature of 100 degrees centigrade to dry the workpiece for 10 minutes; covering the operating end face of the tungsten electrode with an absorption layer to adsorb laser energy in order to prevent the laser from damaging the surface of the tungsten electrode; installing the tungsten electrode on a workbench and applying a constraint layer to the absorption layer in order to constrain an increase in the shrck force of a laser shock wave; performing pre-impact life-prolonging treatment and impact life-prolonging treatment by using a laser beam with a pulse width of 3 to 40ns, a wavelength of 532 or 1064nm, laser energy of 0.5 to 20J, repetition frequency of 0.1 to 10Hz, a laser beam diameter of 0.5 1o 10mm; removing the absorption layer coating the operating end face of the tungsten electrode; cleaning the workpiece with deionized water and blow-drying the workpiece with dry nitrogen in order to assemble the short-arc lamp. The laser shock life-prolonging method is simple in technology, obvious in life-prolonging effect, high in efficiency, low in cost, and little in pollution.

A regression analysis is performed by using a pixel signal of K-th spectral response characteristic and a pixel signal of L-th spectral response characteristic as an explanation variable and an object variable, respectively in a plurality of pixel positions in a area in the vicinity of a pixel position in attention (8) and the pixel signal of the L-th spectral response characteristic is obtained (9). It is also possible to use pixel signals obtained by low-pass filtering the output signal of the imaging elements (7a to 7c) as the explanation variable and the object variable. By performing the aforementioned process, when performing interpolation of a lacking color in each pixel position of a set of pixel signals having one of the spectral response characteristics arranged on a 2-dimensional plane, it is possible to reduce generation of a false color.

The invention relates to an argon arc welding method of a silver-plated aluminum lug plate. The argon arc welding method includes the following steps: (1) sequentially placing an insulation heat-resisting base plate, a metal conducting plate and the silver-plated aluminum lug plate into the lower portion of a coil wire outlet head pressed to be flat from bottom to top, (2) tightly pressing the upper portion of the coil wire outlet head through a heavy object, (3) coating the electric conductive portions, except for the welding portion, of the silver-plated aluminum lug plate with heat conductive and insulation mud, (4) welding the coil wire outlet head and the periphery of the silver-plated aluminum lug plate together in an argon arc welding mode, and (5) rapidly removing the insulation mud, and covering the surface of the silver-plated aluminum lug plate with wet cloth. By means of the argon arc welding method, due to the fact that the electric conductive portions of the silver-plated aluminum lug plate are coated with the heat conductive and insulation mud before welding is carried out, the temperature of the electric conductive portions is accordingly low, blistering and blackening of a silver coating are reduced, the insulation mud is rapidly removed after welding is completed, then the surface of the silver-plated aluminum lug plate is covered with the wet cloth, and therefore heat radiation is guaranteed.

The invention discloses a process for wrapping the surface layer of solid wood moldings with modified PVC. The key points of the technical scheme include the following steps: Step 1: Use a plastic granulator to extrude and granulate the modified PVC composite material; Step 2: Put The modified PVC particles are put into the hopper of the extruder, and the solid wood lines are placed in the center of the mold. Under the high temperature heating of the extruder, the modified PVC particles change from solid to viscous fluid state. Next, enter the PVC viscous fluid into the mold; step 3: the extruder cools down to room temperature, the PVC viscous fluid is condensed into a solid state after cooling, and the modified PVC composite solid wood lines are obtained; the PVC composite material includes the following materials: polyvinyl chloride, Calcium carbonate, wood powder, foaming agent, paraffin wax, composite stabilizer, pigment, the combination strength of modified PVC composite material and solid wood lines in the present invention is relatively high, while the composite heat stabilizer improves thermal stability, the product is not easy to " Zinc burn" phenomenon.