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313results about How to "Simple composition" patented technology

Improved AHB-to-APB bus bridge and control method thereof

An improved APB bus bridge structurally comprises an AHB bus interface and an APB bus interface and further comprises an interface sequential conversion and control module, a control FIFO (First In First Out) module and a data FIFO module, wherein the interface sequential conversion and control module comprises a state machine, a data FIFO control logic unit and a control FIFO control logic unit and a register. A control method of the improved APB bus bridge comprises the following steps: generating a ready signal by the APB bus bridge; determining that the ready signal has a high level, and autonomously sending a transmission request by an AHB bus master; receiving and judging the transmission request by the APB bus bridge, wherein if the transmission request is effective, a control signal and data of the transmission request are stored in the corresponding FIFO modules respectively and the APB bus bridge does not distinguish read and write transmissions; and through state conversion and control of the state machine of the interface sequential conversion and control module, after finishing sequential matching conversion of the two buses, quickly carrying out reliable transmission operation. The improved APB bus bridge is applicable to sequential synchronous and asynchronous AHB-to-APB bus transmission and is compatible with a memory interface.
Owner:杭州中科微电子有限公司

Preparation method for marble ceramic tile with metallic luster sunken textures

The invention discloses a preparation method for a marble ceramic tile with metallic luster sunken textures. The method comprises the following steps: spraying a layer of ground coat on the surface of a ceramic bisque; printing the glaze slip with metallic luster after being sintered onto the ground coat; adopting an ink-jet printing technique for printing marble patterns on the positions except for the distribution position of the glaze slip with metallic luster after being sintered, and correspondingly forming marble pattern lines on the distribution position of the glaze slip; printing the ink-jet printing glaze with a sunken effect on the distribution position of the glaze slip with metallic luster after being sintered; spraying a layer of transparent glaze slip on the surface; putting the ceramic bisque coated with the transparent glaze slip into a kiln and sintering; and then softly polishing, thereby acquiring the marble ceramic tile with metallic luster sunken textures. According to the invention, safe and environment-friendly raw materials are adopted, and the ink-jet printing technique is smartly utilized to accurately align and prepare the marble ceramic tile with metallic luster sunken textures. The glaze slip with metallic luster after being sintered can further enhance the decorative effect of the marble ceramic tile.
Owner:广东协进陶瓷有限公司

Ceramic inkjet printing ink with adjustable penetration depth and method thereof

ActiveCN104761952ASimple compositionReduce anisotropyInksSolventInkjet printing
The invention discloses a ceramic inkjet printing ink with adjustable penetration depth and a method thereof. The ink is composed of a staining ink and an oil-penetration assisting ink, wherein the staining ink is composed of a leveling agent, a color development organic metal salt and a solvent; the color development organic metal salt is dissolved in the solvent and can be converted into colored metal oxide at high temperature; and the oil-penetration assisting ink is composed of a solvent and polysiloxane. The ink has simple composition, and has low penetration anisotropy on the billet or glaze. By compounding the oil-penetration assisting ink, the penetration depth of the staining ink can be conveniently regulated, so that the ceramic can be printed, fired and polished to obtain the ceramic decorative brick with delicate pattern and high stereo perception and has the stone-like tactile sensation and stereoscopic effect. By adopting the soluble organic metal salt as the color body, the ceramic inkjet printing ink can be stored for a long time, does not have the possibility of precipitation or nozzle head blockage, and has favorable inkjet printing performance. The ceramic inkjet printing ink is easy to prepare; and the raw materials can be directly purchased in the market or prepared by simple synthesis.
Owner:GUANGDONG DOWSTONE TECH

Tellurium containing alkane ammoxidation reaction catalyst

ActiveCN101306376AGood catalyst stabilitySimple compositionPhysical/chemical process catalystsPreparation by hydrocarbon ammoxidationChemistryHydrothermal synthesis
The invention relates to an oxidation reaction catalyst of telluriferous alkane ammonia, which comprises a silicon dioxide carrier and a combination which is calculated according to the atomic ratio and comprises the following general formula: MovaNbbTecDdOx, wherein D is at least one selected form Sn, Ti, Fe, Bi, Sb or W. The oxidation reaction catalyst mainly solves the problems that Te is easy to volatilize, the preparation technology is complex, the preparation environment is unstable, and the active component of the catalyst is easy to volatilize, thereby resulting in bad stability of the catalyst in the prior art; and the oxidation reaction catalyst better solves the problems through adopting the technical proposal that Mo-V-Nb-Te base is used as the main component, the hydrothermal synthesis method is adopted, the preparation environment is changed through adding reducing agent and acid during the preparation process, that is, firstly the solution of the corresponding salt or the corresponding oxide compound of Mo and Te is mixed with the solution of the corresponding salt or the corresponding oxide compound of V and Nb, then a specified volume of reducing agent and acid are added to adjust the pH value, and hydrothermal treatment is performed to the uniformly mixed solution. The catalyst has the advantages that the catalyst has good oxidation reduction stability, the reaction temperature is low, the reaction product is clean, and high yield coefficient can be kept for a long time, and the catalyst can be applied to the industrial production for the preparation of the unsaturated acid nitrile in the alkane ammonia oxidation reaction.
Owner:CHINA PETROLEUM & CHEM CORP +1
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