357results about How to "Intensity effect" patented technology

The invention relates to a prefabricated reinforced concrete hollow template internally provided with cross holes and a molding and forming device of the prefabricated reinforced concrete hollow template. The hollow template is internally provided with longitudinal through holes with round cross sections along the length direction and latitudinal through holes with square cross sections along the width direction, wherein the longitudinal through holes are arrayed parallel one another, the latitudinal through holes are also arrayed parallel one another, and the diameter of each longitudinal through hole is less than the length of the side of each latitudinal through hole. Two large surfaces of the hollow template are flat surfaces formed by molding. A casting mold of the molding and forming device is of a vertical type and provided with one or more mold cavities; each mold cavity is surrounded by a front face plate, a rear face plate, a left side plate and a right side plate; a core tube frame or upper side plate capable of fixing a vertical core tube is arranged on the upper part or above each mold cavity; and the left side plate, the right side plate and the upper side plate are provided with a plurality of horizontal holes and vertical holes respectively. Each surface of the hollow template processed by using the molding and forming device is flat without being polished and subjected to similar treatment. The hollow template is high in strength and good in quality, can be directly used for the construction of a load-bearing wall with few procedures in a short time and can ensure that the load-bearing wall is not easy to shrink and crack.

The invention relates to a preparation method of an easily dyed polyester fiber with high hydrophilicity. The preparation method comprises the following steps: performing esterification by stages, wherein dihydric alcohols, polyhydric alcohols and polyethylene glycol macromolecules are mixed according to a certain mole ratio, in the first esterification stage, acid is slightly excess to ensure that parts with low capability of participating in esterification reaction in the polyhydric alcohols fully react and are grafted into polyester molecular chains, and in the second esterification stage, the dihydric alcohols are replenished to control the terminal carboxyl group of copolyester; and then performing condensation polymerization to prepare the easily dyed polyester with high hydrophilicity. The preparation method has the advantages that the easily dyed polyester fiber with high hydrophilicity is finally prepared by carrying out melt spinning on easily dyed polyester with high hydrophilicity; polyhydric active sites in the fiber, ether bonds in flexible chain polyethylene glycol and sulfonate groups in binary acid have strong adsorption functions and can endow the fiber with good moisture absorption property and dyeing property; the easily dyed polyester fiber with high hydrophilicity can be widely used for preparing moisture absorbing and sweat releasing antistatic fibers made into fabrics next to the skin; the easily dyed polyester fiber with high hydrophilicity has an obvious modification effect and is especially suitable for the melt direct spinning process.

The present invention is ceramic sintering fluxing agent, and belongs to the field of building material technology. The method of the present invention is that the first level fluxing agent capable of generating solid solution of lower smelting point is used in fluxing the second level fluxing agent capable of generating solid solution of higher smelting point, the second level fluxing agent is used in fluxing the third level fluxing agent, and so on to complete the sintering of the material at relatively low temperature and lowered power consumption. The ceramic sintering fluxing agent of the present invention is a composite fluxing agent comprising B2O3, K2O+Na2O and CaF2 separately as the first level, the second level and the third level fluxing agent, or comprising Bi2O3, PbO and CaF2, or comprising V2O5, Bi2O3 and LiF+AlF3. It is added into sintering process in the amount of 0.01-0.5 % to lower the sintering temperature by 100 -170 deg.c.

The invention relates to a preparation technique for a molecular sieve coating material, in particular to a preparation method for a molecular sieve coating material on a porous silicon carbide ceramic surface. Porous silicon carbide ceramic is used as a carrier, solid raw materials such as silicon blocks, quartz, silicon-aluminum composite oxide sintered powder with adjustable silicon-aluminum atomic ratio and the like are used as a silicon source or a silicon-aluminum source, and the raw materials are synthesized through in-situ hydrothermal reaction. The porous silicon carbide ceramic surface is provided with microporous structures. The use of the solid silicon source or silicon-aluminum source can enable the release speed of the silicon source or silicon-aluminum source for the growth of crystal nucleus to be controllable. Thereby, the prepared molecular sieve coating is evenly loaded on the surface of the silicon carbide ceramic carrier, the silicon-to-aluminum ratio can be accurately controlled, and the composite material formed by the molecular sieve and the porous silicon carbide ceramic has unique microporous / macroporous structures; and the chemical bonding between the molecular sieve and the porous silicon carbide ceramic is realized and the interfacial bonding strength is high. The invention has the advantages that the technology of the method is simple, the operation is convenient, the complex equipment is not required, the preparation cost is low and the method is more suitable for industrialized mass production.

The invention relates to a preparation method of a molecular sieve coating material on the surface of porous silicon carbide ceramic with the surface rich in silicon, and the molecular sieve coating material is prepared by using the porous silicon carbide ceramic with the surface rich in silicon as a carrier; using solid materials, such as silicon blocks, quartz, sliicon-alumininm composite oxide sintering powder with adjustable sliicon-alumininm atomic ratio, and the like as a silicon source or a sliicon-alumininm source, and adopting a in situ hydrothermally synthesizing method. Molecular sieve crystals preferentially nucleate on the surface of the porous silicon carbide ceramic due to a surface silicon layer of the porous silicon carbide ceramic, the solid silicon source or the sliicon-alumininm source are used so that the release speed of the silicon source or sliicon-alumininm source for the growth of crystal nucleus is controllable. Therefore, prepared molecular sieve coating is uniformly loaded on the surface of the silicon carbide ceramic carrier; the composite material formed by a molecular sieve and the porous silicon carbide ceramic has a unique micropore / macropore structure; chemical combination is realized between the molecular sieve and the porous silicon carbide ceramic, and the molecular sieve and the porous silicon carbide ceramic have high interface combination strength. The preparation method has simple technology, convenient operation without complex equipment and low manufacturing cost and is more suitable for industrialized and mass production.

The invention discloses a fodder feeding system for culturing aquatic organisms in baskets on a water surface. The fodder feeding system comprises a rectangular aquaculture pond, and is characterized in that a plurality of rectangular aquaculture unit blocks capable of floating in water are arranged in the aquaculture pond, a plurality of aquaculture baskets are longitudinally and transversely uniformly arranged in each aquaculture unit block, overhead rails which are higher than the water surface are arranged in the middle of the aquaculture pond along the width direction of the aquaculture pond, a rectangular support capable of moving along the overhead rails back and forth is arranged on the overhead rails, a plurality of feeding machines are arranged in the rectangular support, the quantity of the feeding machines is identical to the quantity of rows of the aquaculture baskets in each aquaculture unit block, and shifting mechanisms for shifting the integral aquaculture unit blocks along the length direction of the aquaculture pond back and forth are arranged on two sides of the aquaculture pond, and can drag the aquaculture unit blocks to be slowly shifted while the feeding machines feed fodder into the aquaculture baskets column by column. The fodder feeding system has the advantage that the fodder feeding system is suitable for accurately, quickly, efficiently and conveniently feeding the fodder into the aquaculture baskets on the large-area water surface.

The invention provides a manufacturing method of a ceramic sheet with an infiltration layer. The manufacturing method comprises the following steps: A, sending an unfired brick, with thickness not more than 6.5mm, of a ceramic sheet to a kiln and performing first firing at 600-1050 DEG C; B, applying organic infiltrated glaze ink and organic infiltration aid ink to the green body subjected to first firing; C, carrying out second firing at 1150-1250 DEG C; and D, carrying out polishing and edging to obtain the ceramic sheet product. The ceramic sheet manufactured by adopting the method has the beneficial effects that an infiltration layer formed by infiltrated glaze ink has certain thickness and infiltrates into a precoat, so that the decorative patterns are resistant to wear, thus solving the problems in the prior art that printed decoration layers formed by conventional ink-jet printing do not have a stereoscopic sense of layering and are not resistant to wear.

The invention relates to a novel concrete cracking resisting waterproofing agent and particularly relates to an aluminum-slag-powder concrete cracking resisting waterproofing agent which is prepared from aluminum slag powder, steel slag powder, mineral slag, fly ash and a small amount of admixture, wherein the aluminum slag powder, the steel slag powder, the mineral slag and the fly ash serve as the raw materials. The aluminum slag powder accounts for 0.3-0.7%, the steel slag powder accounts for 10-30%, the mineral slag accounts for 20-70%, the fly ash accounts for 5-20% and the admixture accounts for 1-3%, wherein the total percent by weight of the components is 100%. The concrete cracking resisting waterproofing agent is low in construction cost and can be used to maintain easily, and the mixing amount of components of the concrete cracking resisting waterproofing agent is easy to control.

The invention discloses a fan impeller which comprises an impeller cover and an impeller dish, wherein the impeller cover and the impeller dish are connected together through vanes and the impeller dish is provided with a plurality of openings which are arranged uniformly and used for reducing the weight of the impeller dish. Compared with the prior art, the openings which are arranged uniformly on the impeller dish can effectively reduce the weight of the impeller dish, so that the power of a motor can be reduced to achieve the purpose of energy saving, meanwhile, the strength of the impeller dish cannot be affected due to the thickness of the impeller dish is not changed, if the number and size of the openings can be under effective control.

A centrally-mounted drive system of an electric bicycle comprises a chain wheel, a motor, a middle shaft and a reduction box, wherein the chain wheel has a disc-shaped structure; a concave circular mounting part is arranged in the middle position of the chain wheel; a housing of the reduction box is arranged in the concave mounting part and matched with the chain wheel; a reducing mechanism in the reduction box is a composite dual-overrun clutch, wherein the inner ring of an outer clutch and the outer ring of an inner clutch share the same component which serves as the output end of a hybrid power source; and the inner ring of the outer clutch is coaxially fixed to the chain wheel. The centrally-mounted drive system of the electric bicycle employs coaxial mounting, coaxial output and single-stage helical gear parallel transmission manners and successfully avoids great change of a frame caused by lift mounting; the single-stage reducing mechanism is employed to realize coaxial output; the volume of the motor is effectively reduced, which has little influence on the appearance of the entire bicycle; and viewed from the angle of the appearance of the entire bicycle, the similarity of the electric bicycle to the bicycle is very high.

The invention discloses a glass tube molding mold, device and method. The mold is installed at a discharge port of a molten glass material supply device and comprises an inner mold body, and the inner mold body is installed at the discharge port of the material supply device and comprises a connecting rod and a molding part; the molding part comprises a molding surface, the molding surface is the surface, facing the discharge port, of the molding part and is a spherical surface or conical surface or curved surface which protrudes towards the connecting rod, and at least one material groove is formed in the molding surface in a concaved mode and extends to the bottom of the molding surface from the corresponding joints. In the manufacturing technology, molten glass flows to the molding surface of the inner mold body through flow channel clearances formed in the discharge port, the molding surface guides the molten glass to be diffused in a curved surface mode to form a tube in the initial stage that the molten glass is converted from the flow state to the solidified state, inner ribs are formed by the molten glass flowing along the material grooves on the inner side of the tube, and then the glass tube is driven by a traction device to rotate, so that the inner ribs are in a spiral shape. Accordingly, the production problems in the prior art are solved, and the glass tube with the spiral ribs on the inner wall is produced.