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8results about How to "Does not affect mechanical properties" patented technology
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A bridge pot bearing and control system based on system transformation
ActiveCN116122137Bclose contactrich design methodClimate change adaptationBridge structural detailsFixed bearingControl system
This invention discloses a bridge pot bearing and control system based on system conversion. A first bearing body and a second bearing body are stacked from top to bottom. The first bearing body has a first mounting plate, and an adjustment component is installed below the first mounting plate. The second bearing body has a second mounting plate, and a test component is installed on the second mounting plate. The test component connects with the adjustment component. While performing pressure testing, the test component, in conjunction with the adjustment component, enables the conversion between three states: fixed pot bearing, unidirectional movable pot bearing, and bidirectional movable pot bearing. This invention monitors the stress on the bearing in real time, calculates the bridge shear force based on the reaction force, and derives the bridge shear force amplification factor under dynamic loads, thus improving bridge design methods and making bridge design safer and more reliable. It can realize the functions of a fixed bearing, a unidirectional movable bearing, or a bidirectional movable bearing, and achieve mutual conversion between bearing types.
Owner:CHANGAN UNIV
A plating process for forming a titanium coating on PEEK material
This invention relates to a coating process for forming a titanium coating on PEEK material, comprising: S1, modifying the PEEK material by electron beam enhanced plasma cleaning, and bombarding the PEEK material surface with argon ions; S2, bombarding the PEEK material surface treated in S1 with metal ions, wherein charged metal ions generated by an ionization source are accelerated and bombarded on the PEEK material surface by a high negative bias voltage; S3, depositing a titanium coating on the PEEK material surface treated in S2, using titanium as the target material. This process can obtain a metal film layer with strong adhesion, dense coating, and biocompatibility on medical PEEK material. The deposited coating can maintain the low elastic modulus matching characteristics of the PEEK material surface and the porous structure of 3D printed PEEK. The deposition temperature is controlled below 100℃, which does not affect the mechanical properties of the material.
Owner:DABO MEDICAL TECH CO LTD
Gradient-structure hard alloy ball tooth suitable for dry rock breaking and preparation method
PendingCN122007423AImprove mechanical propertiesImprove toughnessAdditive manufacturing apparatusConstructionsHard metalAlloy
The invention provides a hard alloy ball tooth of a gradient structure suitable for dry rock breaking and a preparation method, the hard alloy ball tooth is of an N-layer gradient structure, and raw materials of the gradient structure comprise WC powder, Co powder and graphene powder; in the N-layer gradient structure, the volume fraction of the WC powder and the volume fraction of the graphene powder are equal or increased layer by layer from the inner layer to the outer layer, and the volume fraction of the Co powder is equal or decreased layer by layer from the inner layer to the outer layer; in the outermost layer of the N-layer gradient structure, the volume fraction of the WC powder and the volume fraction of the graphene powder are both larger than the volume fraction of the Co powder; and the thickness of each layer in the N layers of gradient structures is greater than or equal to 0.1 mm. According to the hard alloy ball tooth, the mechanical property of the hard alloy ball tooth is improved, the hard alloy ball tooth has high hardness and high toughness, the hard alloy ball tooth is endowed with more excellent heat dissipation performance, the rock breaking efficiency is improved to a great extent, and the service life of a product is prolonged to a great extent.
Owner:XIAN RES INST OF CHINA COAL TECH & ENG GRP CORP
Propylene / alpha-olefin copolymer as well as preparation method and application thereof
PendingCN121758661ADoes not affect mechanical propertiesLow sealing temperaturePolymer sciencePolyolefin
The invention discloses a propylene / alpha-olefin copolymer as well as a preparation method and application thereof. The weight-average molecular weight of the propylene / alpha-olefin copolymer is 100,000 to 300,000, and the melting temperature Tm of the propylene / alpha-olefin copolymer is 80 to 120 DEG C; the propylene / alpha-olefin copolymer is subjected to a rheological test by using a parallel plate rheometer in an oscillation shear mode, and an obtained fitting formula is as follows: Lg (eta *) = k * Lg omega + b. When the propylene / alpha-olefin copolymer material provided by the invention is used for a polyolefin cast film, the sealing temperature can be effectively reduced, the heat sealability is enhanced, and meanwhile, the mechanical properties of the material are not influenced.
Owner:WANHUA CHEM GRP CO LTD
Bottom die supporting structure between structural sections
ActiveCN224092389Upromote rapid formationSimple structural designBreakwatersClimate change adaptationClassical mechanicsStringer
Owner:THE SECOND ENG COMPANY OF CCCC FOURTH HARBOR ENG
A conductive composite material prepared using a high shear field polymer incompatible system, its preparation method, and its applications.
ActiveCN117209890BImprove conductivityImprove utilization efficiencyMicro devicesElectronic communication
The application provides a conductive composite material prepared by using a high shear field polymer incompatible system and a preparation method and application thereof, and belongs to the field of advanced material technology.The polymer-based conductive composite material is prepared by micro-injection molding processing and is prepared from a conductive filler and an incompatible resin system.The composite material can realize a substantial improvement in the conductive performance by adding a small amount of the conductive filler, can be used as an electronic material, and will not affect the mechanical performance and processing performance of the composite material.Meanwhile, the micro-injection molding processing technology can obtain a conductive functional micro device with higher precision and smaller size, and meets more use requirements.The polymer-based conductive composite material can be widely used in the fields of micro devices, micro-electro-mechanical systems, electronic communication, automobiles, aerospace, etc., and has a wide application prospect.
Owner:SICHUAN UNIV
Antistatic polyethylene open master batch and preparation method thereof
The invention relates to the technical field of material processing, in particular to an antistatic polyethylene open master batch and a preparation method thereof. The antistatic polyethylene opening master batch comprises the following components in parts by weight: 40-60 parts of polyethylene matrix resin, 4.8-6.5 parts of a plant oil-based amide opening agent, 15-25 parts of a functional antistatic agent and 0.5-1.5 parts of other auxiliaries. The preparation method of the functional antistatic agent comprises the following steps: premixing the ethylene-1-octylene copolymer, the itaconic acid and the initiator, extruding through a double-screw extruder to obtain POE-g-ITA, premixing the POE-g-ITA and the polyethylene glycol monostearate again, and extruding through the double-screw extruder to obtain the functional antistatic agent. The prepared antistatic polyethylene opening master batch is used for preparing a polyethylene film, and has stable and good opening property and antistatic property under the condition of ensuring the mechanical property and good appearance.
Owner:JIANGXI SHUNLI NEW MATERIAL CO LTD
A tooling for changing shaft pins
This utility model relates to a tooling for replacing axle pins, including a tooling base, a traveling mechanism, a lifting mechanism, a telescopic mechanism, a counterweight mechanism, a jack support, and a clamp. The lifting mechanism drives the furniture to rise and fall, the telescopic mechanism drives the furniture to move left and right, the jack support can adjust the angle of the jack, and the counterweight mechanism consists of a counterweight box welded to the tail of the telescopic mechanism. A counterweight block smaller than the size of the counterweight box is placed inside the counterweight box. This technical solution is used to replace the current method of using gas cutting to remove axle pins and using a sledgehammer to install axle pins in the replacement of axle pins in mechanical equipment.
Owner:SDIC ZHONGMEI TONGMEI JINGTANG PORT CO LTD