93results about How to "High rotational strength" patented technology

The invention relates to an oven liner structure which comprises a liner casing used for defining a baking cavity as well as a heater arranged in the liner casing. The oven liner structure is characterized in that a left baffle, a right baffle and a rear baffle are respectively arranged on the left side, the right side and the rear side of the inner wall of the liner casing; a gap is formed between the middle of each of the left baffle, the right baffle and the rear baffle and the inner wall of the liner casing; the peripheries of the left baffle, the right baffle and the rear baffle are tightly clung onto the inner wall of the liner casing; a first hot air blower, a second hot air blower and a third hot air blower are respectively arranged between the left baffle and the inner wall of the liner casing, between the right baffle and the inner wall of the liner casing, and between the rear baffle and the inner wall of the liner casing; air inlets are formed in the middle part of each of the left baffle, the right baffle and the rear baffle; air outlets are formed on the left side and the right side of each of the left baffle, the right baffle and the rear baffle. The oven liner structure has the advantages that the rotation intensity of airflow in a liner can be increased, the disturbance is also increased, and the thermal field of the whole liner is relatively uniform.

The invention discloses a method for manufacturing a ceramic diamond composite grinding wheel, which is characterized by comprising the following steps of: by mass, mixing and pelletizing diamond, silicon carbide and a bonding agent, carrying out compression molding, drying, pre-burning and then sintering to obtain a joint unit; and placing the joint unit and a grinding wheel matrix into a die, pouring a polyimide composite material between the joint unit and the grinding wheel, carrying out pressing, then carrying out cooling and sintering to obtain the grinding wheel. According to the composite grinding wheel manufactured by the method disclosed by the invention, an integrated pressing sintering or embedding splicing mode is adopted; the polyimide composite material is used as a transition adhesive; and the integral grinding wheel is manufactured after carrying out secondary hot pressing and sintering. The chip accommodating and drainage space surface coverage rate of the ceramic diamond composite grinding wheel can reach 30 to 70 percent. The ceramic diamond composite grinding wheel has the following excellent grinding characteristics that the cutting depth is large; the grinding precision is high; in the forming and grinding process, the retentivity of a molded surface is good; the application range is wide; the grinding wheel can be used for dry grinding and has resistance to the high temperature of 350 DEG C and splicing units cannot fall off and blocks cannot fall off; and the grinding wheel has high revolving strength.

The invention relates to a ceramic bond and a preparation method thereof, and belongs to the technical field of grinding wheel bonds. The ceramic bond is prepared from, by weight, 20%-40% of borosilicate glass, 22%-43% of feldspar, 10%-35% of nepheline syenite, 5%-13% of clay, 2%-5% of lithium carbonate and 3%-13% of chromium sesquioxide. According to the ceramic bond, all the components are subjected to a synergistic effect within a limited dosage range, the firing temperature of the ceramic bond is lowered to be 1000 DEG C, high-temperature burning loss of ceramic microcrystal grinding materials is avoided, the revolving strength of a grinding wheel manufactured through the bond is improved, and the grinding linear velocity reaches 80 m/s maximally. The preparation method is easy and convenient to operate, easy to control and suitable for industrial application and popularization.

The invention discloses a spiral-flow type fluidized bed incinerator which comprises an incinerator body and a cyclone separator. The incinerator body is used for providing combustion space for a fluidized bed, and the cyclone separator is used for recycling insufficiently-combusted ingredients for secondary combustion. At least three layers of secondary air jet orifices are further formed in the walls of the incinerator body and located in a transition zone between a dense-phase zone and a lean-phase zone. The other ends of the secondary air jet orifices are communicated with a secondary air source. The secondary air jet orifices on the same layer are distributed in the walls of the incinerator body. The air flow is spiral so as to enhance transverse mixing of particles and air in the incinerator body and prolong the residence time of the particles in the incinerator body. High-speed secondary air is jetted into the lean-phase zone on the upper portion of an air distribution plate of the circulation fluidized bed incinerator body in a classified manner through wall type tangential firing, so that transverse mixing of particles and air is enhanced, temperature distribution in different areas in the dense-phase zone is more uniform, the combustion efficiency and the desulphurization efficiency are improved, NOx emissions are lowered, the heat transferring is enhanced, and the equipment size is reduced.

The invention relates to a method for purifying liquid steel in tundish by the composition of a rotary electromagnetic field and a tangential diversion and a device. The method is that the generating device of the rotary magnetic field generates the rotary electromagnetic force to drive steel water in a tundish rotary chamber to generate the rotary flow, which is characterized in that the vertical impact flow of a ladle nozzle is guided to horizontal tangential to flow into the rotary chamber to form the power of the rotary flow, then the power of the rotary flow is composed with the rotary electromagnetic force to allow the steel water in the rotary chamber to generate the symmetric rotary flow, and the centrifugal force is utilized to separate the non-metallic impurities from the steel water. The device is the tundish which contains the rotary chamber, which is characterized in that the rotary chamber is connected with a guide slot along the tangent, the ladle nozzle is arranged in the guide slot, and the outside of the rotary chamber is provided with a generating device of the fan-shaped rotary magnetic field. The invention adopts the composition of the rotary electromagnetic field and the tangential guide flow, thus enhancing the rotation intensity of the steel water, reducing the input power and the energy consumption of the generating device of the rotary magnetic field, eliminating the damage function of the ladle injection flow on the centrifugal separation of inclusions and improving the purification effect.

An oil baffle disclosed in an embodiment of the present invention includes an oil baffle body, the surface of the oil baffle body facing the rotor is an oil-gas separation surface, and an oil-gas separation surface arranged on the oil baffle body side guide vanes. For the oil baffle provided by the present invention, when the oil baffle rotates together with the rotor, the guide vanes located on the oil-air separation surface of the oil baffle body will rotate together with the oil baffle body, because the turbulence caused by the rotation of the guide vanes The function enhances the rotation strength of the refrigerant flow field and assists the gas circulation, thereby enhancing the separation effect of the oil-gas mixture, reducing the oil discharge of the compressor, and improving the overall performance of the compressor. The invention also discloses a compressor rotor assembly, a compressor and an air conditioner.

The aim of the invention is to provide a wide-flow multi-flow type high-efficiency gas-liquid separator. The wide-flow multi-flow type high-efficiency gas-liquid separator comprises an outer cylinderbody and an inner cylinder body, wherein the inner cylinder body extends into the inner part of the outer cylinder body, the lower end of the inner cylinder body remains outside the outer cylinder body, a first-stage impeller is mounted in the middle of the inner cylinder body, a second-stage impeller is mounted at the top of the inner cylinder body, a liquid discharge section is arranged on the inner cylinder body between the first-stage impeller and the second-stage impeller, a liquid discharge hole which is communicated with the inner space of the inner cylinder body and the inner space ofthe outer cylinder body is formed in the liquid discharge section, a separator liquid-phase extraction outlet is formed in the lower end of the outer cylinder body, a separator gas-phase extraction outlet is formed in the top of the outer cylinder body, and a separation chamber which causes the liquid phase to fall back is formed between the second-stage impeller and the separator gas-phase extraction outlet. The wide-flow multi-flow type high-efficiency gas-liquid separator disclosed by the invention comprehensively utilizes the centrifugal separation principle, the gravity separation principle and the inertial separation principle, is simple and compact in device structure, and can realize high-efficiency gas-liquid separation in a wide flow range and multi-flow pattern.

An automatic transmission comprising a plurality of planetary gears disposed between an input shaft and an output shaft and having a plurality of rotational elements, a plurality of frictional elements selectively engaged and released for controlling rotations and connections of the plurality of rotational elements in accordance with instructions so as to realize a plurality of gear positions, rotational speed detecting means for detecting a rotational speed of a predetermined one of the plurality of rotational elements, other than the input shaft and the output shaft, and frictional element release means for releasing all of the plurality of frictional elements when it is judged that the rotational speed of the predetermined one of the plurality of rotational elements is higher than a predetermined rotational speed.

An impeller of a blower is disposed with circular support plates that are made of a resin and rotate about an axis of rotation and a plurality of blades that are made of a resin. The blades are disposed on outer peripheral portions of the circular support plates so as to be parallel to an axis of rotation, and serrated shapes are formed on the blades by cutting out blade tips at plural places. Additionally, a step is formed in a blade face of each of the blades at a position a predetermined distance from the blade tip where the serrated shape is formed.

The invention discloses a high-speed cutting resin grinding wheel. The high-speed cutting resin grinding wheel comprises, by weight, 410-500 parts of CBN abrasive, 70-100 parts of white corundum powder, 96-110 parts of 34-40% of formaldehyde solution, 5-7 parts of boric acid, 2-6 parts of hexamethylene tetramine, 13-20 parts of aniline, 2-3 parts of potassium oxide, 90-100 parts of phenol, 3.6-4 parts of sodium fluosilicate and 0.6-1 part of pentaerythritol. The high-speed cutting resin grinding wheel is particularly suitable for high-speed cutting, and the grinding efficiency is high.

The invention discloses a high-thermal-reduction abrasive material resin grinding wheel. The high-thermal-reduction abrasive material resin grinding wheel is composed of, by weight, 430 to 500 parts of a CBN adhesive material, 70 to 100 parts of quartz sand, 10 to 17 parts of cerous nitrate, 40 to 50 parts of ethylene glycol, 10 to 14 parts of 25-28wt% ammonium hydroxide, 2 to 3 parts of hydrogen peroxide, 90 to 100 parts of phenol, 96 to 110 parts of a 35-40% formaldehyde solution, 5 to 7 parts of boric acid, 2 to 6 parts of hexamethylenetetramine, 13 to 20 parts of phenylamine, 10 to 13 parts of barium chloride, 13 to 20 parts of coke and 1 to 2 parts of sodium chloride. The coke is adopted for conducting thermal reduction on a cerium precursor, so that a high-strength reducing abrasive material is obtained, and the self-sharpening performance of the grinding wheel can be improved.

This invention shows a fossil oil serum coke burning device including the shell that consists of fuel pouring wall, flame outpouring wall and the side wall. There is a burning space inside the shell of which the side wall sets interval two or more tangential intakes. The fuel pouring wall sets at least three atomization burners of fossil oil serum coke and at least one oil burner together with at least a gas burner. The inside diameter of the burning space inside the shell is 1/4 to one time of the vertical distance between the inside wall of the flame outpouring wall and the inside wall of the fuel pouring wall.

The invention relates to a drainer based on a rotary draining core structure. The drainer includes a drainer body, a draining core, an annular lower disc and a soft rubber cover. The drainer body is a cylindrical structure provided with a hollow cavity, the draining core and the annular lower disc are disposed in the cavity of the drainer body from top to bottom, and the soft rubber cover plugs a drainer upper opening to cut off water. Compared with the prior art, the invention is a detachable novel drainer with a rotary draining core structure and a filtering function, realizes intelligent drainage of an unpowered device, and has the advantages of difficult oscillation, long service life, large filtration area, and small flow resistance, etc.

The invention discloses a vertical sand making machine. A vertical sand making shell is included. Main bolt holes are formed in the bottom of the vertical sand making shell, and a main hollow structure is arranged at the center in the vertical sand making shell. Two grinding discs are vertically arranged, the preliminary pressure application grinding function of large sand grains between the grinding angles is achieved under the action of gravity of the large sand grains, under the action of a spiral blade, the main function of pressure application grinding again is achieved, and accordingly the grinding efficiency is effectively improved. In addition, the device is provided with an annular array spiral spring compression abutting setting type control mechanism, and under elasticity of a spiral spring, the maximum rotation strength can be controlled so that the maximum extrusion strength can be controlled. In addition, the device is provided with a two-plane rotation sliding friction ball type rotation grinding disc limiting mechanism, the function of limiting of the rotation plane can be achieved, and the centrifuge phenomenon is prevented.

To accomplish the above object, this embodiment forms the coil connecting parts 34e on the vertical sections 34d of the commutator segments 34b so that the coil conductors 32a may be assembled axially. On the outer circumference of the coil connecting part 34e, this can form the commutator segments 34b in a body with the lock members 34f that prevent the coil conductor 32a from going out in the centrifugal direction from the coil connecting part 34e. Therefore, the rotating strength (the centrifugal strength) of coil conductors 32a can be improved in the coil connecting part 34e without any additional member for the lock member 34f and without increasing the number of manufacturing steps pertaining to the lock member 34f.

The invention belongs to the field of grinding wheels and manufacturing method thereof and particularly relates to a corrugated roller grinding wheel and a manufacturing method thereof. The grinding wheel is characterized in that raw material component and weight percentage of grinding parts are that 68-80% of grinding materials with granularity of 36 [mu]m-120 [mu]m; 8-15% of ceramic bond; and 10-15% of pore-forming materials. The manufacturing method comprises following steps of 1) mixing materials; 2) forming; 3) drying; 4) kiln placing; 5) sintering; and 6) blank drying and size processing. The grinding wheel is advantageous in that the grinding wheel is high in rotation strength, rigidity, structure uniformity, static balance performance, heat radiation performance, grinding performance, grinding efficiency and grinding precision.