3results about How to "Same density" patented technology

The invention relates to the technical field of spectral analysis, in particular to a spectral confocal measurement structure which comprises a light source, a Y-shaped optical fiber coupler, a dispersion lens and a spectrograph. Wherein the Y-type optical fiber coupler is provided with a common end, a first bifurcated end and a second bifurcated end, the first bifurcated end is connected with the light source, the second bifurcated end is connected with the spectrometer, and the common end is connected with the dispersion lens; the spectrometer comprises a collimating lens, a longitudinal dispersion grating, a cylindrical lens, a beam splitter prism, a first multi-frequency grating, a second multi-frequency grating and an area array detector, the collimating lens, the beam splitter prism and the second multi-frequency grating are sequentially arranged in the first direction, and the first multi-frequency grating, the beam splitter prism and the longitudinal dispersion grating are sequentially arranged in the third direction. And the cylindrical lens and the area array detector are sequentially arranged on a light path on one side, far away from the beam splitter prism, of the longitudinal dispersion grating. According to the invention, high luminous flux, high resolution and broadband measurement can be realized.

The application relates to the technical field of fireproof materials, in particular to a flame-retardant ABS composition and a preparation method thereof; the flame-retardant ABS composition comprises the following components in parts by weight: ABS particles 1000-1400 parts, polysiloxane 350-450 parts, dimethyl silicone oil 100-200 parts, a flame retardant 300-600 parts, inorganic fillers 100-300 parts, a crosslinking agent 5-40 parts, a coupling agent 2-20 parts, a catalyst 0.5-2 parts and an intumescent agent 1-2 parts; the ABS particles in the composition serve as the only hard aggregate, have high size consistency and the same density, and are not prone to sedimentation; the ABS particles are light and rigid, are not prone to brittle fracture after being extruded, and have flame-retardant properties; when being pushed to an ignition point, the ABS particles can cover the fire source together with the gel, so that the purpose of blocking combustion is achieved.

The present application relates to a polishing pad pouring mold, a polishing pad processing method and a polishing pad, wherein the polishing pad pouring mold comprises two pouring pieces, the two sides and the bottom side of each pouring piece are provided with a bonding strip, the bonding strips of the two pouring pieces are connected in opposite directions, so that an inner polishing pad forming groove is formed between the two pouring pieces, the top edge of each pouring piece is provided with a first inclined surface as a pouring point, and the polishing pad processing material can slide along the pouring point to fill the inner polishing pad forming groove; the processing method comprises the following steps: preparing a polishing pad processing material; heating the polishing pad pouring mold to 50-70 DEG C; pouring the polishing pad processing material into the inner polishing pad forming groove of the polishing pad pouring mold; and vulcanizing the polishing pad processing material in the polishing pad pouring mold to form a solid. Compared with the prior art, the present application can improve the density and the uniformity of the microsphere expansion ratio of the formed polyurethane cake body, and effectively improve the yield.