6results about How to "Small creep" patented technology

The invention discloses a high-strength and high-wear-resistance cast aluminum alloy material and a preparation method thereof, and belongs to the technical field of motors for new energy automobiles. The cast aluminum alloy material is prepared from the following components in parts by weight: 0.2 to 0.5 weight percent of Si, 0.7 to 1.0 weight percent of Cu, 0.2 to 0.5 weight percent of IIA group elements and the balance of Al and inevitable impurities. The cast aluminum alloy material can reduce the alloy cracking tendency in the casting process, so that the yield strength and the tensile strength of a cast aluminum rotor made of the alloy material are improved, the cast aluminum rotor can stably run when running at the high rotating speed of 23000 rpm or above, and the running safety of the cast aluminum rotor is improved.

The application provides a low-temperature laminated co-extrusion adhesive film and a preparation method and a photovoltaic module, and relates to the technical field of photovoltaic devices.The low-temperature laminated co-extrusion adhesive film comprises a laminated EVA film layer and a TPO film layer, and the EVA film layer and the TPO film layer are fused at the interface part; the content of vinyl acetate in the EVA film layer is 15-40%, and the crosslinking degree of EVA is not less than 65%; the raw material for forming the TPO film layer comprises an ethylene-alpha olefin copolymer; the melt index of the ethylene-alpha olefin copolymer is 0.5-10 g / 10 min, and the melting point is 50-115 DEG C; the light transmittance of the low-temperature laminated co-extrusion adhesive film for light with a wavelength of 380-1100 nm is greater than 88%. The low-temperature laminated co-extrusion adhesive film provided by the application not only can realize low-temperature crosslinking, but also has high bonding performance with a base material and long-term anti-creep performance.

The utility model discloses a mounting side plate. According to the scheme, the side plate comprises a first limiting hole and a second limiting hole which are formed in the plate surface of a side plate body, and the side plate body is made of nylon materials. The side plate body provided by the utility model is made of the fiber-reinforced semi-aromatic nylon, has high chemical resistance, high temperature resistance, high strength, high rigidity, high dimensional stability, scratch resistance and low creep property.

The application discloses a high-temperature-resistant and high-rigidity oil tank valve body sealing gasket skeleton material and a preparation method thereof, and belongs to the technical field of automobile fuel system component manufacturing. The skeleton material comprises the following raw materials in parts by weight: 70-80 parts of polyphthalamide resin, 13-15 parts of glass fiber, 12-14 parts of carbon fiber, 2-3 parts of ethanol aqueous solution containing KH-550, 3-6 parts of modifier, 0.5-1 part of antioxidant and 0.4-0.8 part of lubricant. The modifier has a molecular structure comprising a fluoralkyl chain, a long alkyl chain, a sulfonyl group and a benzene ring. The application cooperatively enhances the glass fiber and the carbon fiber, and combines the special modifier, so that the high-temperature resistance, the impact resistance, the dimensional stability and the fuel swelling resistance of the material are significantly improved, the problems of insufficient mechanical property and poor medium resistance of the existing polyphthalamide material are solved, and the application is suitable for the high-demand automobile oil tank valve body sealing gasket.

The present disclosure relates to a vibration absorber and a vehicle, the vibration absorber comprising: a mounting disc configured to be mounted on a drive shaft; a rubber main spring connected around an outer periphery of the mounting disc; a first mass ring embedded in the rubber main spring; a second mass ring connected to an outer periphery of the rubber main spring, and the first mass ring and the second mass ring are coaxially arranged with the mounting disc respectively; and a reinforcing member embedded in the rubber main spring, the reinforcing member comprising a first reinforcing member arranged between the mounting disc and the first mass ring, and a second reinforcing member arranged between the first mass ring and the second mass ring, and the reinforcing member is in contact with the rubber main spring. The first mass ring and the second mass ring can enable the vibration absorber to attenuate vibrations at two torsional vibration frequencies. The reinforcing member arranged in the rubber main spring can reduce the creep of the rubber main spring during operation of the vibration absorber, not only ensuring the dynamic balance of the vibration absorber, but also ensuring the strength of the rubber main spring, so that it is not easy to be damaged when bearing larger vibrations, thereby improving the service life of the rubber main spring.

This disclosure relates to a display device, including a display panel, a protective layer on the display panel, and a first adhesive layer between the display panel and the protective layer. The first adhesive layer may contain 0.05 wt% to 1 wt% of a silane coupling agent, and the first adhesive layer may have 20% or less creep at 60°C.