35results about How to "Reduced conduction capacity" patented technology

The invention discloses a diamond reinforced metal-base composite material for electronic packaging and a preparation method thereof. The material comprises the following components by volume percent:30%-90% of diamond, 0.1%-5% of addition element and 10%-70% of metal substrate, wherein the addition element comprises one or more of Zr, Cr, Ti and B and the metal substrate comprises one metal of Ag, Cu and the like. The preparation method of the material comprises the following steps: mixing powder, pressing, infiltrating and pressing again. Owning to the adopted alloy element addition method,the wettability among phases is greatly improved. Therefore the material prepared by the method of the invention has better thermal conductivity, thermal expansion coefficient and mechanical properties compared with the former electronic packaging material and the adopted liquid phase infiltration method has the advantages of simple operation, low cost and capability of mass production.

The blood pressure and blood lipid- lowering capsule is prepared with three kinds of Chinese medicinal materials, including cassia seed, haw and lotus leaf, in certain weight proportion. The medicine has the functions of clearing away heat, promoting blood circulation, falling turbid and relaxing the bowels, and possesses determined curative effect on hyperlipemia. It has high safety, short disintegrating period, small dosage, raised patient's compliance and high clinical curative effect.

The invention relates to a kieselguhr composite decoration plate and a production process thereof, belonging to the field of building materials. In the invention, kieselguhr is used as a main material to prepare the kieselguhr composite decoration plate and a production process of the kieselguhr composite decoration plate is further provided. The decoration plate is made from the following raw materials: kieselguhr, polyvinyl chloride and processing auxiliaries. According to the invention, based on a series of good characteristics of kieselguhr, such as light weight, soft texture, multiple pores, sound insulation, heat resistance, acid resistance, large specific area, stable chemical property and the like, the produced kieselguhr composite decoration plate has the advantages of low sound,heat and electricity conductivity, zero formaldehyde, water tightness and flame retardance and the like and simultaneously can be nailed, sawed and planed and has other processing characteristics, and thus the kieselguhr composite decoration plate can be widely used for family indoor and outdoor decorations.

The invention discloses a technology for embedding metal into blue and white porcelain. The technology comprises the following steps: (1) sketching blue and white patterns and metal patterns on a manufactured porcelain body, digging ink mark slots along the ink marks of the metal patterns, then putting the porcelain body into a kiln and firing for the first time; (2) coloring the blue and white patterns, then putting the porcelain body into the kiln and firing for the second time; (3) enabling the bottom surfaces and the walls of the ink mark slots to be evenly coated with white vaseline, enabling the metal to be melted, pouring the melted metal into the ink mark slots, enabling the melted metal to be solidified, grinding and leveling; and (4) spraying clear glaze onto the porcelain body, then putting the porcelain body into the kiln and firing for the third time. According to the technology, the porcelain body is fired for three times, so that the blue and white patterns can fully present colors, and better metallic luster is realized; the metal and the porcelain are combined into a whole, so that the product not only has the freshness and beauty of the blue and white porcelain, but also is endowed with the grave and deep feeling of the metal; and therefore, the artistic value and the commercial value of the product are greatly improved.

The invention discloses an ionizing-radiation-proof and electromagnetic-radiation-proof protection garment, comprising a protection garment body, wherein the protection garment body comprises an outerlayer structure and an inner layer structure; the inner layer structure comprises a first water-proof permeable layer, a radiation-proof layer and a second water-proof permeable layer; the radiation-proof chemical fiber in the radiation-proof layer plays the role of preventing ionizing radiation and electromagnetic radiation; the silver fiber can eliminate the second radiation, the first waterproof permeable layer and the second waterproof permeable layer can prevent the moisture from entering, so that the effect of the radiation-proof layer is more lasting and the protection clothing is convenient to be cleaned; and the radiation-proof chemical fiber in the radiation-proof layer plays the role of preventing ionizing radiation and electromagnetic radiation. The gadolinium and lanthanum elements in the radiation-proof fiber can produce photoelectric effect with the particles in the radiation, and increase the ability of incident photon and the atomic boundary absorption of the irradiated substance, so it has the radiation shielding property. Barium titanate can effectively weaken the conductivity between the carboxyl iron particles, make it better meet the electromagnetic matchingcharacteristics, so that more frequency bands of electromagnetic waves can enter the interior and be attenuated.

The blood pressure and blood lipid- lowering capsule is prepared with three kinds of Chinese medicinal materials, including cassia seed, haw and lotus leaf, in certain weight proportion. The medicine has the functions of clearing away heat, promoting blood circulation, falling turbid and relaxing the bowels, and possesses determined curative effect on hyperlipemia. It has high safety, short disintegrating period, small dosage, raised patient's compliance and high clinical curative effect.

The invention discloses a diamond reinforced metal-base composite material for electronic packaging and a preparation method thereof. The material comprises the following components by volume percent: 30%-90% of diamond, 0.1%-5% of addition element and 10%-70% of metal substrate, wherein the addition element comprises one or more of Zr, Cr, Ti and B and the metal substrate comprises one metal of Ag, Cu and the like. The preparation method of the material comprises the following steps: mixing powder, pressing, infiltrating and pressing again. Owning to the adopted alloy element addition method, the wettability among phases is greatly improved. Therefore the material prepared by the method of the invention has better thermal conductivity, thermal expansion coefficient and mechanical properties compared with the former electronic packaging material and the adopted liquid phase infiltration method has the advantages of simple operation, low cost and capability of mass production.

The invention discloses an intelligent snow removal roof structure and relates to the technical field of intelligent buildings. The intelligent snow removal roof structure comprises a main body, wherein the main body is a right-angled trapezoid in cross-section and the inside of the main body is hollow, the upper slope of the main body is sloped from top to bottom from back to front, the top wallof the main body is provided with rotating holes that are round through holes, the number of the rotating holes is set according to the size of the main body, a rotating rod is provided inside the rotating holes, the rotating rod is a round rod with a smooth surface, the rotating rod extends from the inside of the rotating hole to the top of the main body, a set of fan blades are sleeved on the outer cylinder of the rotating rod, and each set of fan blades are left-and-right symmetrical triangular fan blades. In the invention, by providing a snow removal block, the triangles on the front and back sides of the snow removal block can break the ice that has solidified with water when the triangular blocks on the front and back sides of the snow removal block are in contact with snow piles inside a snow trough during the back and forth movement of the snow removal block inside the snow trough, thereby avoiding the situation that the snow is hard to remove when being solidified with water.

The invention relates to a fuel cell system, comprising a plurality of individual fuel cells (2) which are combined to form a fuel cell stack, and two current collectors (3) which adjoin the two individual fuel cells at the ends, an end plate (4) adjoining the current collectors in each case directly or with the interposition of an insulation plate (6), wherein a heat accumulator (5) is provided in an adjacent manner on at least one of the current collectors (3) on the side facing away from the individual fuel cells (2). Said heat accumulator can be arranged in a recess of the end plate (4) or of the optionally present insulation plate (6), and a compensation reservoir for a change in volume of the heat accumulator (5) may be provided.

The invention belongs to the technical field of material extraction, and particularly relates to a preparation method of a high purity and low density lipoprotein. Chylomicrons and very low density lipoproteins in blood plasma are centrifuged and removed according to different densities, remain blood plasma is extracted and added withpotassium bromide and the density is adjusted to 1.045g / mL, centrifugation is carried out again to obtain a normal low density lipoprotein located at the uppermost layer, and a phosphate buffer salt solution is used for dialyzing to reduce K+ concentration; and aresultof the K+ concentration of the low density lipoprotein before and after dialyzing measured by a full-automatic biochemical analyzer is compared with a result measured by an osmotic pressure analyzer, if the K+ concentration of the low density lipoprotein is dialyzed to be with no obvious differences with the osmotic pressure of the phosphate buffer salt solution, the potassium bromide is considered to be completely dialyzed, and then the high purity and low density lipoprotein is obtained. The preparation method of the high purity and low density lipoprotein can obtain the high purity and low density lipoprotein to meet of existing experimentalrequirements.

The invention relates to the technical field of highway facilities and particularly relates to an anti-noise sound insulation belt for a highway. The sound insulation belt comprises a first sound insulation belt body, a second sound insulation belt body, a plurality of groups of binding devices, an adjusting device, a support box, a plurality of positioning shafts, a connecting plate and an anti-skid pad, wherein an upper part of the support box is sheathed with a fixed plate, and the left part and the right part of the bottom end of the fixed plate are fixedly connected with a support pipe, clamping shafts are sleeved with the supporting pipe, the end, away from the supporting box, of each clamping shaft is fixedly connected with a limiting shaft, the circumferential outer wall of each limiting shaft is sleeved with a first spring, the end, away from the supporting box, of each limiting shaft is fixedly connected with a long plate, the end, close to the supporting box, of each long plate is fixedly connected with a transverse plate, and a top end of the support tube is provided with a guide tube, trigger plates are vertically and slidably connected into the guide pipe, chamfers are arranged on the right portion of the transverse plate, extension plates are arranged at the bottom ends of the trigger plates, an upper plate is arranged on the upper side of the fixing plate, and a bottom end of the upper plate is fixedly connected with the top ends of the trigger plates; the soundproof belt is convenient to mount and demount and high in practicability, and toppling of the soundproof belt is reduced.

The invention discloses a technology for embedding metal into blue and white porcelain. The technology comprises the following steps: (1) sketching blue and white patterns and metal patterns on a manufactured porcelain body, digging ink mark slots along the ink marks of the metal patterns, then putting the porcelain body into a kiln and firing for the first time; (2) coloring the blue and white patterns, then putting the porcelain body into the kiln and firing for the second time; (3) enabling the bottom surfaces and the walls of the ink mark slots to be evenly coated with white vaseline, enabling the metal to be melted, pouring the melted metal into the ink mark slots, enabling the melted metal to be solidified, grinding and leveling; and (4) spraying clear glaze onto the porcelain body, then putting the porcelain body into the kiln and firing for the third time. According to the technology, the porcelain body is fired for three times, so that the blue and white patterns can fully present colors, and better metallic luster is realized; the metal and the porcelain are combined into a whole, so that the product not only has the freshness and beauty of the blue and white porcelain, but also is endowed with the grave and deep feeling of the metal; and therefore, the artistic value and the commercial value of the product are greatly improved.

The invention relates to a chemical vapor deposition apparatus for a flat display comprising a reaction chamber for performing a deposition processing to a substrate, an air inlet tube for injecting processing air into the reaction chamber and an air supplying tube connected to the air inlet tube and for guiding the processing air flowing to the air supplying tube. In the chemical vapor deposition apparatus, a parasitic electric slurry generation prevention part is located in the air inlet tube and prevents the parasitic electric slurry from generating in the air supplying tube through increasing the pressure of the air supplying tube during the deposition processing.

The invention relates to a lead-free copper alloy wire material which is prepared from the following components in parts by weight: 0.2-0.8 part of tellurium, 0.01-0.06 part of microelements and 99.14-99.79 parts of copper. The microelements are composed of the following components in parts by weight: 0.004-0.015 part of phosphorus, 0.001-0.015 part of boron and 0.005-0.03 part of magnesium. The preparation method of the lead-free copper alloy wire is technically characterized by comprising the following steps: horizontal continuous casting of a wire blank, hot-shrinkage deformation by continuous extrusion, cold-shrinkage deformation by multi-disk pulling. The wire blank can directly enter the continuous extrusion machine to a thermally-deformed wire blank with corresponding size of the finished product without heating, and a multi-disk pulling machine is utilized to obtain the wire blank with the size of the finished product by primary processing without annealing in the middle. The invention overcomes the difficulties of high cracking tendency in cold working and high-temperature brittleness in hot working in the tellurium-containing copper master alloy cast wire blank.

The invention discloses a bamboo domestic architecture; it includes foundation, walls, floor and roof one by one from the bottom to the top. Said foundation is bamboo concrete or armored concrete structure, the wall and the floor components use bamboo component or bamboo and wood assembly, the perimeter of floor is supported by the wall, the bamboo component of said walls comprises of beam, bottom beam, wall pillar installed between the beam and the bottom beam as well as the wall surface which covers the outside of wall pillar. The bamboo component of said floor comprises of many floor joists and floor surface using bamboo as base material, the floor joist is placed on the beam and the floor surface is placed on the floor joist. The invention is a simple, low cost, small construction difficulties, short construction period, better environmental protection and bamboo domestic architecture.

The invention discloses a protective clothing for preventing ionizing radiation and electromagnetic radiation, which comprises a protective clothing body, the protective clothing body includes an outer layer structure and an inner layer structure, and the inner layer structure includes a first waterproof and breathable layer, and a radiation protection layer. layer, and the second waterproof and breathable layer; the anti-radiation chemical fiber in the radiation protection layer plays the role of preventing ionizing radiation and electromagnetic radiation, the silver fiber can eliminate the second radiation, and the first waterproof and breathable layer and the second waterproof and breathable layer can Prevent moisture from entering, make the effect of the radiation protection layer more durable and facilitate the cleaning of protective clothing; the gadolinium and lanthanum elements in the radiation protection fiber can have a photoelectric effect with the particles in the ray, and increase the incident photon capacity and irradiated substances The atomic boundary limit absorbs and has radiation shielding properties; barium titanate can effectively weaken the conductivity between carboxyl iron particles, so that it can better meet the electromagnetic matching characteristics, so that more frequency bands of electromagnetic waves can enter the interior and be attenuated .

The invention relates to a chemical vapor deposition apparatus for a flat display comprising a reaction chamber for performing a deposition processing to a substrate, an air inlet tube for injecting processing air into the reaction chamber and an air supplying tube connected to the air inlet tube and for guiding the processing air flowing to the air supplying tube. In the chemical vapor deposition apparatus, a parasitic electric slurry generation prevention part is located in the air inlet tube and prevents the parasitic electric slurry from generating in the air supplying tube through increasing the pressure of the air supplying tube during the deposition processing.

The invention discloses an engineering mold heat insulation board with good pressure resistance and heat resistance performance, which comprises a heat insulation board body. board, the fourth middle board and the heat insulation lower board, the bottom of the heat insulation upper board is connected to the top of the first middle board by building sealant, and one side of the bottom of the first middle board is connected to the second board by the building sealant. One side of the top of the middle plate is bonded and connected, and one side of the bottom of the second middle plate is bonded and connected to one side of the top of the third middle plate through building sealant. In the present invention, an asbestos board and a rock wool board are added to the heat insulation lower board. , Strengthen the connecting ribs and return-shaped grooves, and add ultra-fine glass wool, high-silica wool boards and vacuum insulation boards on the heat-insulating upper board, which greatly reduces the heat conduction performance and can effectively improve the heat-insulating lower board and insulation board. The heat resistance performance of the hot plate reduces the phenomenon of scalding during use.

The invention discloses a thermal interface material and a preparation method thereof, wherein the thermal interface material is used to transfer heat generated by a heat source to a radiator, and the thermal interface material includes a base material layer, a first contact layer, a second contact layer and doped material. The base material layer is made of a material with a positive thermal expansion coefficient or a material with a negative thermal expansion coefficient. The first contact layer covers one side of the base material layer and is in contact with the heat source; the second contact layer covers the other side of the base material layer and is in contact with the heat sink; The thermal expansion coefficient of the dopant material is opposite to that of the base material layer, and the concentration of the dopant material increases from the center plane of the base material layer to the first contact layer and the second contact layer respectively in preset gradients. In the present invention, the concentration of the dopant material is gradually increased in a predetermined gradient to ensure that the difference in thermal deformation between the organic matter and the heat-conducting particles in the thermal interface material is small, avoiding the peeling of the organic matter and the heat-conducting particles to form holes that lead to a decrease in thermal conductivity, and ensuring the stable performance of the thermal interface material.

Disclosed are a mixture and a cation conductor which are capable of transferring cations without humidification even in the temperature range not higher than the boiling point of water. Also disclosed is an electrochemical device such as a fuel cell which uses the mixture or cation conductor. The electrochemical device comprises a fuel electrode (12) and an oxygen electrode (13) arranged opposite to each other via an electrolyte membrane (11). The electrolyte membrane (11) contains a first compound composed of an imidazole derivative containing N having an unshared electron pair and a second compound composed of at least one compound selected from the group consisting of compounds having structures represented by the formulae below.