58results about How to "High Mohs hardness" patented technology

The invention relates to a pipeline for conveying petroleum, natural gas and the like and a manufacturing method thereof, and belongs to the field of special pipelines for conveying oil and gas. The oil and gas pipeline provided by the invention has three scientific and technological innovations; two groups of strengthening annular bodies are welded on the large flanges at the two ends of the pipeline; a plurality of groups of strengthening steel bar plates and overall strengthening steel circular pipe fittings are combined and welded symmetrically, and the non-deformable mechanical strength of the overall pipeline is increased. The microcrystalline glass lining has the advantage of 8-level Mohs strength, and the highest quality index can be performed comprehensively and creatively by adjusting the formula and the ratio of the microcrystalline and amorphous glass lining enamel according to the requirements on the specific physicochemical performances of different structural parts of each oil and gas pipeline engineering and each pipeline. By applying an openable and closeable extra long horizontal electric heating furnace and an intelligent temperature control instrument, and combining a new process of rotating while heating, the extra large and extra long integrated large microcrystalline glass-lined pipeline which has high glass-lined layer quality, and is smooth in circulation, durable, non-corrosive, wear-resistant, high in seismic resistance, and safe in operation is developed. The large microcrystalline glass-lined pipeline can comprehensively replace various current pipelines by virtue of comprehensive strong advantages.

The invention provides a vitrified tile and a preparation method of the vitrified tile and belongs to the technical field of ceramic. The vitrified tile provided by the invention is prepared from the following raw materials: Linyi porcelain stone, Mengyin feldspar, pyrophyllite, Zhucheng soil, quartz, alumina, Laiyang soil, soapstone, diopside and fat clay. All raw materials can take synergistic effect under the action of high temperature, the firing temperature can be reduced to some extent, the firing cycle is shortened, and the processing property and the physical and chemical properties of the product are qualitatively improved in comparison with a conventional process.

The invention relates to the field of building materials, aiming at providing colored antistatic and anticorrosive paint and a using method thereof. The paint is prepared from the following componentsby mass percent: 5-15% of a lithium silicate solution, 0.5-3% of a glucose solution, 3-10% of inorganic toner, 0.6-1% of a surfactant, 5-10% of ethanol, 15-35% of alumina sol, 5-12% of a silver ammonia solution, 0.5-6% of conductive powder, 0.1-0.5% of a brightener, 1.5-4% of a silane coupling agent and the balance of distilled water. The colored antistatic and anticorrosive paint is prepared from water-based materials, is simple and convenient to construct, and can be directly applied to the surface of a terrace in a way of roller coating or spraying for construction; the terrace treated byusing the colored antistatic and anticorrosive paint has the characteristics of being high in hardness, wear resistance and gloss, antistatic, and the like, and is especially excellent in antistatic property; furthermore, a variety of colors are available for adjustment and selection. The surface gloss of the terrace becomes more durable after the terrace is used for a longer time, and the terraceshows waxing luster.

Method for producing an immobilisation element (1) for immobilising a body part of a patient on a supporting surface, wherein the immobilisation element (1) comprises a sheet (8) of thermoplastic material for receiving the body part to be immobilised, and at least one profile (3) for fixing the immobilisation element (1) to the supporting surface, wherein the profile (3) comprises a first fixing means for fixing the profile (3) to the sheet (8), wherein the fixing means comprises a groove (9) delimited by a first contact surface (6) and a second contact surface (7) opposite the first contact surface (6), wherein the groove (9) receives the sheet (8) so that the first and the second contact surfaces (6, 7) lie along the sheet (8), and wherein at least one of the first contact surface (6) and the second contact surface (7) is provided with at least one protrusion (10), wherein the protrusion (10) penetrates the sheet (8) of thermoplastic material in the thickness direction of the sheet (8) in order to anchor the sheet (8) of thermoplastic material in the groove (9).

The invention provides a background wall brick preparing method. The background wall brick preparing method comprises the following steps: 1, forming a green body and drying the green body to obtain the dry green body; 2, applying ground coat enamel on the surface of the dry green body to obtain a first green brick; 3, inkjet printing the ground coat enamel of the first green brick to obtain a second green brick; 4, drying the second green brick to obtain a third green brick; 5, applying cover glaze on the inkjet-printed side of the third green brick to obtain a fourth green brick; 6, drying the fourth green brick to obtain a fifth green brick; 7, roasting the fifth green brick at high temperature to obtain a sixth green brick; 8, polishing the sixth green brick to obtain the background wall brick. The background wall brick is large in moh hardness and breaking strength and low in water absorption. The invention further provides a background wall preparing method, and the background wall is good in link and attractive and elegant in appearance.