30results about How to "Valid link" patented technology

The invention discloses a preparation method and application of a high thermal and electrical conductivity adhesive. The heat transfer between a high-frequency, high-heat and high-density electronic chip and a heat sink is satisfied, and the reliability and the stability of the service of high-power electronic components are improved. A conductive filler used in the high thermal and electrical conductivity adhesive provided by the invention is nano-silver heat-reduced from flake silver powder and an organic silver complex. The high thermal and electrical conductivity adhesive is prepared fromthe following raw materials by mass percent: 65 to 75 wt% of flake silver, 13 to 22 wt% of organic silver complex, and 12 to 18 wt% of organic carrier. The preparation method and application of the high thermal and electrical conductivity adhesive disclosed by the invention have the advantages that an organic silver complex solution is adopted to effectively regulate and control the viscosity of aslurry, the microscopic interface defects caused by the flake silver as a 'framework' are overcome, the phonon transmission efficiency is improved, and a more efficient thermal conductivity path is constructed; on the other hand, during heat curing, the organic silver complex undergoes in-situ reduction sintering while resin is cured by heating, an effective link between a substrate and a chip can be achieved, and a high-thermal-conductivity structure can be constructed.

The invention discloses serial compounds with triptycene as a framework and in bridge connection with metalloporphyrin through pyrene tetrone and a preparation method therefor, and belongs to the photoelectric conversion material field. The compound molecular formula is C320H348N24M3. The structural formula is shown in the specification. Triptycene is subjected to nitration by utilization of concentrated nitric acid, and 2,6,14-trinitro-triptycene; after reduction, a reaction with propionic anhydride, p-toluenesulfonic acid and potassium nitrate is carried out, then sodium hydroxide is added, hydrolysis is carried out, and 2,6,14-triamino-3,7,15-trinitro-triptycene is prepared; after reduction of stannous chloride, ethanol and concentrated hydrochloric acid, 2,3,6,7,14,15-hexaamino triptycene hexachloro hydrochloride. 3,5-bis-tert-butyl benzaldehyde and pyrrole are reacted and porphyrin is prepared; porphyrin is reacted with cupric acetate and cupric nitrate solutions and nitro copper porphyrin is prepared; 4-amino-1,2,4-triazole is added, a reaction is carried out, and an amino substituted nitro copper porphyrin is prepared; after reduction, diamino copper porphyrin is prepared. 2,3,6,7,14,15-hexaamino triptycene hexachloro hydrochloride and 2,7-bis-tert-butyl pyrene-4,5,9,10- tetrone are reacted, and a compound 1 is prepared; the compound 1 is reacted with the diamino copper porphyrin, and a compound 2 is prepared; after metal removal, a reaction with a methanol solution of corresponding metal acetate is carried out, and the compound is prepared.

The invention discloses a suspension system with linkage of two vehicle axles, mainly comprising a double seat beam, a rubber spring system and the like, wherein the double seat beam is used for realizing linkage of a first vehicle axle and a second vehicle axle adjacent in a vehicle and is connected with a vehicle frame through the rubber spring system. The invention can solve a series of problems of the traditional suspension system and has good practicability and market potential.

The invention discloses a preparation method of a graphene-modified waste tire thermal cracking carbon black nano composite material, which mainly comprises the following steps: preparing graphene oxide, preparing a thermal cracking carbon black aqueous suspension, carrying out wet blending, acidification, purification and chemical modification on the graphene oxide and the thermal cracking carbonblack aqueous suspension, and finally, carrying out aftertreatment and high-temperature heat treatment to obtain the product. The ash content in pyrolytic carbon black of waste tires in the finally obtained product is greatly reduced; after chemical modification, graphene oxide forms chemical bonding on the surface of carbon black, the agglomeration problem caused by independent addition of graphene can be avoided in the use process, the graphene makes up for performance loss caused by independent use of pyrolytic carbon black, and the service life of the product is prolonged. According to the production process, the organic combination of a graphene production process and a cracked carbon black modification process is comprehensively utilized, so that the product performance is excellent, the production process is energy-saving, and the production process is suitable for large-scale production.

The invention discloses a wood preservative modification treatment method. The wood preservative modification treatment method is characterized in that wood is treated by using a chemical agent containing quercetin and oxalic acid, wherein the quercetin is grafted to the cell wall of the wood through the oxalic acid. The specific method comprises the steps that 5-20 parts of quercetin and 2-50 parts of oxalic acid are weighed and dissolved in 150-300 parts of absolute ethyl alcohol, 0.4-2 parts of p-toluenesulfonic acid is added, and the chemical agent for treating wood is formed; the wood tobe treated is soaked for 48-96 h at normal temperature and normal pressure; and the impregnated wood blocks are placed in the environment of 120 DEG C to be treated for 2-8 h. According to the method,effective chemical bond combination can be formed between quercetin and wood cell walls, the durability of wood is improved, the loss resistance of the wood is improved, the technical problem that quercetin serving as a botanical natural antibacterial component is difficult to fix and easy to lose in the wood is solved, and the application of quercetin in the technical field of wood preservationis expanded.

[Problem] To achieve an engine generator device in which effective utilization of containers is achieved by housing a generator functional unit, which itself houses an engine and a generator driven by said engine, in a longer generator container, and housing, in a shorter waste heat utilizing container, a heat converter and a boiler utilizing the heat discharged by the engine, wherein the two containers are effectively linked without the need for routing pipes or cables, which also saves space and makes for excellent maintainability even after assembly. [Solution] This container unit consists of a combination of: a longer generator container (20) which comprises a water-cooled engine (21) arranged in approximately the central position in the longitudinal direction of the container, and, on either side of the engine (21), a radiator (4) arranged on the 0f side of the container and a generator (22) arranged on the 40f side of the container, and which is provided with an engine exhaust gas outlet (21a) in approximately the central portion of the container directly above said engine; and a shorter waste heat utilizing container (1) comprising a muffler (2) arranged upright on the 20f side of the container, with an exhaust gas inlet (2a) in the top wall of the container, and comprising a boiler (4) which is disposed inside of the container space further towards the 0f side of the container than where the muffler stands upright and which generates steam by taking in exhaust gas of the engine (21) through the muffler (2). The longer generator container (20) and the shorter waste heat utilizing container (1) configure a combination unit in which longitudinal walls face one another and are aligned in parallel in the longitudinal direction, and the radiator (4) is arranged adjacent to the wall opposite of the wall facing the shorter waste heat utilizing container (1) and extends along said opposite wall.

The invention discloses a three-axle linked suspension system, which comprises a double-seat beam, a balance beam and a rubber spring system, wherein the double-seat beam realizes linkage of adjacent first axle and second axle in a vehicle; and the balance beam is connected with a third axle and the double-seat beam through the rubber spring system and realizes linkage between the third axle and the first axle and the second axle. The suspension system can solve a series of problems of the conventional suspension system and has high practicality and good market prospect.

The invention belongs to the technical field of special engineering plastic films and particularly relates to a polyimide composite film and a preparation method thereof. The polyimide composite filmcomprises a layer A and a layer B, wherein the layer A comprises polyimide resin and inorganic filler, and the layer B comprises polyimide resin and porous particles. The preparation method includes the steps of firstly, preparing a size-stable polyamide acid gel solution A; secondly, preparing low-density buffer type polyamide acid gel solution B; thirdly, subjecting the polyamide acid gel solution A to tape casting film forming to obtain a gel film A; fourthly, coating two sides of the gel film A with the polyamide acid gel solution B; fifthly, stretching, and performing imidization to obtain the polyimide composite film. The preparation method can satisfy the processing requirements of sputtering-method adhesive-free flexible copper clad laminates. The prepared polyimide composite filmis high in double-sided copper foil binding force, high in size stability, excellent in bending resistance and the like.

The invention relates to a fire fighting device, and discloses an extrusion type indoor fire hydrant. The extrusion type indoor fire hydrant comprises a hydrant body with an inner cavity, and the outer wall of the hydrant body is connected with a base and a connecting base. A valve clack capable of opening and closing an input channel is hinged to a port of the end, close to the inner cavity of the hydrant body, of the input channel. The outer wall of the hydrant body is further connected with a sleeve, and the sleeve and the base are arranged on the two opposite sides of the hydrant body correspondingly. The end, located outside the hydrant body, of the sleeve is in threaded connection with an adjusting bolt. The adjusting bolt stretches into the sleeve, and the front end of the adjustingbolt is provided with a first extrusion plate, an adjusting spring and a second extrusion plate, all of which are sequentially connected. The front portion of the adjusting bolt is provided with a rotation clamping block, and the rotation clamping block is clamped in a containing groove of the first extrusion plate. The face, away from the adjusting spring, of the second extrusion plate is connected with a transmission rod, and the two ends of the transmission rod are hinged to the second extrusion plate and the valve clack correspondingly. The extrusion type indoor fire hydrant achieves thepurposes that before an ignition source is extinguished, the input channel can be rapidly connected, water outflow can be rapidly stopped after the ignition source is extinguished, inner abrasion of the fire hydrant is reduced, and the service life is prolonged.

The invention relates to the field of organic polymer compounds, in particular to polytetrafluoroethylene resin for extruded tubes and a preparation method of the polytetrafluoroethylene resin, and has the main improvements that in the preparation process, polymerization reaction is carried out in two stages, namely polymerization is carried out at low pressure in the earlier stage and polymerization is carried out at high pressure in the later stage; and a modifier A and a modifier B are respectively added in the early stage and the later stage in the polymerization process. The transparent high-strength polytetrafluoroethylene dispersion resin obtained by the method is used for pasty push-extrusion processing of pipes, and the obtained product has the characteristics of straightness, smoothness, continuity, good transparency, good appearance, high strength and the like.

A smart card (100) which includes a non-volatile read/write memory (230), a resolve buffer (505), a processor (205) connected to the memory (230) and the resolve buffer (505), and an installer module (210) configured to cause the processor (205) to receive computer code having unresolved references into the memory (230), and further configured to cause the processor (205) to perform a method for resolving unresolved references. The method including steps for copying the contents of the memory (230) into the resolve buffer (505), detecting unresolved references in the computer code, determining the resolved reference for each of the detected unresolved references, updating the contents of the resolve buffer (505) with the resolved references, and replacing the contents of the memory (230) with the contents of the resolve buffer (505).

A record carrier of a read-only type has information in a track. The information is subdivided in addressable blocks and a number of blocks constitute an information unit. The information unit is the minimal unit for error correction according to a format for writable record carriers. On the read-only record carrier a linking area is provided between information units. This has the advantage that compatibility with recordable record carriers is improved.