60results about How to "No defects" patented technology

The invention discloses an inter-cluster data migration method and system, a server and a computer storage medium. The method is used for performing data migration between a first cluster and a second cluster, and the first cluster and the second cluster each comprise a main node and at least one sub node; the method comprises the steps that according to a data migration request, data is written by the sub nodes in the first cluster concurrently into a designated path of an intermediate storage system; the main node of the first cluster backs up a data sheet structure to a main node locally in a list file mode, and sends a sheet file to the main node in the second cluster so that the main node in the second cluster can synchronize the data sheet structure to the sub nodes in the second cluster; the sub nodes in the second cluster reads and stores data from the designated path of the intermediate storage system currently according to a data redistribution strategy of the second cluster, the data migration speed is increased, and the time needed by data migration is shortened.

The invention relates to a demoulding device for a barb injection-molded part. The demoulding device comprises a moving mould plate and a mould core, wherein a demoulding ejector rod is inserted into the moving mould plate and the mould core; sleeves are arranged between the demoulding ejector rod and the moving mould plate, and between the demoulding ejector rod and the mould core and fixedly connected with the moving mould plate; the sleeves are also provided with a spiral chute correspondingly matched with convex knobs on the two sides of the ejector rod, so that the moving mould plate forces an outward turning end embedded in a hook-shaped body of a product on the top of the demoulding ejector rod to be rotatably demoulded along with the demoulding ejector rod through the spiral chuteand the convex knobs; and the lower end of the demoulding ejector rod is rotatably connected with an ejector retainer plate. The demoulding ejector rod of the demoulding device rotatably moves upwards with small turning moment and stress on the chute is small, so that the demoulding device has the advantages of reducing friction force, reducing damage to the core structure and the mould core, greatly prolonging the service life of the barb molding structure and a mould and ensuring that the molding structure does not have the defects.

The invention relates to a sand lined metal mould casting brake shoe tool device and a production method thereof, and belongs to the field of sand lined metal mould casting. The sand lined metal mould casting brake shoe tool device comprises a lower casting piece and a gating system, wherein the lower casting piece and the gating system are both arranged on a mould board; the sand lined metal mould casting brake shoe tool device further comprises an upper casting piece, a single casting piece, a connection board, a loam core and a flow gate; the lower casting piece and the upper casting piece are both connected with the connection board to form the single casting piece; the loam core is arranged inside an iron mould and used for forming an inner cavity of the single casting piece, a sprue base and the lower part of a cross gate; the inner flow gate is arranged in an inner pouring gate; and one end of the flow gate is connected with the cross gate, and the other end of the flow gate is connected with the single casting piece. According to the invention, the lower casting piece and the upper casting piece are connected into a circle to form the single casting piece, the inner cavity of the single casting piece is formed by the loam core, and the production method of the sand lined metal mould casting brake shoe tool device has simple operation and high efficiency, so that the yield of the casting piece is increased, the production efficiency is improved, and the produced casting piece of the brake shoe is smooth and clean in surface and accurate in size.

The invention fixes a pair of carrying roller on the intake of the rolling machine to lead the mill bar between another pair of roller which is respectively up and down the machine also. With such a device, front of the mill bar can be rolled leaving few disfigurements though using no film on it.

Glass sheets according to the invention, have a coating provided on a surface thereof , wherein the coating comprises a first layer comprising an enamel precursor and a second layer comprising a resin. Such glass sheets may be heat treated and, before heat treatment, may be handled and ransported without damaging the coating, may be cut and ground without causing the coating to peel off or to be damaged at the borders of the cutting line, and offer a good resistance under running water avoiding the peeling off or destruction of the coating.

The invention relates to the technical field of wear-resistant materials, and discloses a low chromium cast grinding ball, and a manufacturing method thereof. The low chromium cast grinding ball comprises the following chemical components by weight: 2.10-3.60% of C, less than or equal to 1.50% of Si, less than or equal to 1.50% of Mn, less than or equal to 1.00% of Mo, 1.00-3.00% of Cr, less than or equal to 0.80% of Cu, less than or equal to 0.08% of S, less than or equal to 0.10% of P, and the balance being Fe. A formula provided by the invention is reasonable; and the manufacturing method is simple. The raw materials are kept at a constant temperature for 2-2.5 hours after being melted, so as to guarantee few inclusions and uniform distribution. The raw materials are easily available and common steel scrap, pig iron and stainless steel scrap are used as the raw materials and can be used circularly, so that energy can be effectively saved; molten iron is subjected to modified treatment, so that the toughness and strength of the cast grinding ball are increased and the service life of the cast grinding ball is prolonged; and no defect phenomenon appears in the manufacturing process.

Chemical mechanical polishing compositions and slurries comprising a film forming agent and at least one silane compound wherein the compositions are useful for polishing substrate features such as copper, tantalum, and tantalum nitride features.

The invention discloses an aluminum alloy warm precision die forging process, which relates to an aluminum alloy die forging process. Aiming at the problem that the current aluminum alloy isothermal precision die forging die temperature is not enough, the forging blank is too large to produce waste, the process is unstable, and it is easy to stick to the die. Step 1: Determine the size of the forging blank; Step 2: Heat the forging mold and the forging blank; Step 3: After the material temperature reaches, lift the forging blank from the pit furnace and put it into the No. 1 basket of the box furnace Inside, continue to keep warm; Step 4: Apply graphite lubrication on the mold, and then place the forging blank on the mold; Step 5: Forging. Step 6: Start the push-out button of the ejector rod, eject the formed part, use the material tongs to clamp the forging out, and place it on the table; Step 7: Use the angle grinder to clean the burr on the bottom of the forging, and place it on the table to cool down. The invention is used for isothermal precision die forging of aluminum alloy.

The invention relates to a preparation device and preparation method for an asphalt mixture trapezoidal beam test specimen; the device comprises a hydraulic system, a pressure control system, a counter force frame, and a test mold assembly; the counter force frame is erected at the upper part of a hydraulic jacking rod; the test mold assembly is arranged at the top of the hydraulic jacking rod and includes an upper press head, a lower press head and a test mold; the test mold has an inner cavity; the lower press head is located at the bottom of the inner cavity of the test mold; the upper press head presses the test mold from the upper part. The test mold assembly presses against the counter force frame in virtue of the jacking force of the hydraulic system so as to extrude and mold the test specimen. Rolling forming of the prior art is changed, only simply mixing static-pressure molding of trapezoidal beam test specimen-demolding cooling maintenance are required, the production cycle is short, and the molded test specimen has small error; and static pressure molding has no damage of high-frequency vibration during cutting of a specimen in the prior art on the test specimen.

The invention provides a lanthanum-aluminum phosphate composite material. The lanthanum-aluminum phosphate composite material comprises lanthanum phosphate and aluminum phosphate compounded with lanthanum phosphate. The composite material has specific phase composition and micro-structure, and lanthanum phosphate and aluminum phosphate are mutually doped and compounded and bonded through ionic bonds, so that the lanthanum-aluminum phosphate composite material which can be quickly cured and molded at low temperature and has excellent performance at high temperature is obtained. The phosphate composite material provided by the invention can be cured and formed at normal pressure and low temperature, so that the product can be formed without special high-temperature sintering by special equipment, complex high-temperature sintering is omitted in the forming process, and energy is saved. The composite material is excellent in high temperature resistance and good in ablation resistance, the surface of an ablated sample is complete at the ablation temperature of 2000 DEG C, melting does not happen, the preparation process is simple, and the preparation period is short.

The invention discloses a preparing method of architectural decorative microcrystalline glass-ceramic composite board, which comprises the following steps: 1) preparing ceramic base; 2) preparing mother glass board; 3) preparing composite board from the following schemes: (1) transmitting the moulded mother glass board on the bearing plate; cooling to do crack disposal; heating again to sinter into integral to obtain the crack sintered bulk; overlapping the crack glass sintered bulk on the ceramic base to obtain the product; (2) transmitting the moulded and cooled mother glass board on the bearing plate; heating again to do crack disposal; (3) overlapping the moulded and cooled mother glass board on the ceramic base directly; 4) polishing to obtain the product.

The invention discloses a hollow shaft machining method. A bar is machined into a hollow shaft, an annular step is arranged on the outer circle of the hollow shaft, a center through hole is formed in the hollow shaft, and a plurality of vertical through pin holes are formed in the outer circle of the hollow shaft. The hollow shaft machining method comprises following steps: the bar is machined, and the bar is machined into a semi-finished product with the step and the center through hole; the semi-finished product is stably treated so as to release machining stress; the stably-treated semi-finished product is subject to semifinishing; a drill mold for drilling the hollow shaft is adopted to fixedly clamp and drill the semi-finished product subject to semifinishing, and a semifinishing product with the step, the center through hole and multiple small holes is formed; the semifinishing product is subject to nitrogen treatment, and the semifinishing finished product subject to nitrogen treatment is subject to finishing, and the hollow shaft is formed. The hollow shaft machining method is low in machining cost, high in yield and short in machining period.

A process for increasing the oxygen content of vertical pulling monosilicon rod includes such steps as arranging the oxygen increaser made of quartz to the bottom of quartz crucible, adding monosilicon to said oxygen increaser, smelting monosilicon, and pulling. Its advantages are simple structure and high effect.

The invention relates to double-protein nutritious bread, a preparation method and a device. The method comprises the steps that soaked soybean is boiled in boiling water; the boiled soybean and milkare mixed in a certain proportion, and then fed into a colloid mill to be ground into soymilk paste; a certain proportion of bread powder, the soymilk, eggs, sugar and yeast are evenly mixed and prepared into dough, a certain proportion of shortening and salt are added when the dough is ready to form, and the dough is continuously stirred or kneaded evenly; the dough is statically placed for a predetermined time, after the dough goes slack, stirring and kneading are continuously conducted, the stirred or kneaded dough is placed in a mold for shaping, and then is placed in a wake-up oven for waking up for a predetermined time; and after the oven is preheated, the wake-up dough is placed in a baking tray and baked for a predetermined time at a set temperature, and is demolded and cooled to the room temperature. According to the preparation method, the double-protein bread with color, taste and nutrition balance can be obtained.

The invention discloses a defect monitoring device for flat enameled wire production and processing, and relates to the field of defect monitoring devices, and the defect monitoring device comprises a flat enameled wire defect monitoring machine body which is of a cylindrical structure. The middle part of the flat enameled wire defect monitoring machine body is provided with processing drain holes which are distributed along the length direction of the flat enameled wire defect monitoring machine body, and the processing drain holes penetrate through the two ends of the flat enameled wire defect monitoring machine body; when a flat enameled wire is drawn to move in the processing drain holes in the flat enameled wire defect monitoring machine body by a traction mechanism, a series of operations such as painting, drying, defect detection and paint make-up are completed, the integration is high, and the efficiency is high.

The invention relates to a marine microorganism adhesion-resistant olefin composite material and a preparation method thereof. The preparation method comprises the following steps: (1) weighing a copolymerized olefin material, an inorganic nano component and an olefin monomer with a cyclopentadiene structure, performing blending, and carrying out ultrasonic dispersion treatment to obtain a blend;and (2) adding the blend obtained in the step (1) and a catalyst into a reactor, mixing the substances uniformly, injecting the mxiture into a mold, and conducting polymerizing, curing and molding toobtain a target product. Compared with the prior art, the prepared olefin composite material has excellent mechanical properties like good wear resistance, high strength, high toughness and the like,and more importantly, adhesion of marine microorganisms can be effectively inhibited, and the olefin composite material has excellent marine corrosion resistance and is beneficial to application of the composite material in the field of ocean engineering.