59results about How to "High compression resilience" patented technology

The invention relates to the field of sealing, in particular to a sealing element and a compression type packer provided with the sealing element. The sealing element comprises a sealing body, wherein the sealing body comprises a through hole, a sealing surface, an inner side stress surface and an axial stress surface; the through hole penetrates through the sealing body; the sealing surface is formed on the outer surface; the inner side stress surface is formed on the inner surface, is near the end part of the sealing element and is arranged in a way of surrounding the through hole; the inner side stress surface gradually contracts from outside to inside, so that the inner side stress surface is integrally in a reducing shape; the axial stress surface is formed on the side wall; and when the axial stress surface is axially extruded, and the inner side stress surface is outwards extruded, the outer surface is radially projected, so that the sealing surface formed on the outer surface is driven to be radially projected for sealing. According to the sealing element provided by the invention, the axial stress surface and the inner side stress surface can be extruded to deform at the same time, so that the deformation capability of the sealing element is improved; and the problem of sealing incapability due to insufficient deformation of the sealing element is effectively prevented.

A kapok fibre wadding with high insulating performance and light weight is proportionally prepared from natural kapok fibres, the fibres with low fusing point, and chemical fibres with high compressional resilience through mixing, opening, netting and adhering.

The invention discloses a graphene conductive elastomer which comprises an elastic base body and graphene three-dimensional network structures. Holes are formed in the elastic base body, the communication rate between the holes is 30%-80%, the holes are filled with the graphene three-dimensional network structures, and at least part of graphene in the graphene three-dimensional network structuresis intrinsic graphene or reduced graphene oxide. The invention also discloses a preparation method of the graphene conductive elastomer. The invention also discloses a sensor.

The invention relates to a pre- preoxidated string, aramid fiber or mixed fiber strengthened rubber sealing compound material and its producing technique. The components comprises of : 1, strengthened fiber, 2. enlarged-volume fiber, 3. flexible sticker, 4. filling material, 5. assistant; the mass ratios of each component are: strengthened fiber 10%-36%, enlarged-volume fiber 40-65%, flexible sticker 10-23%, filling material 9.6-21%, assistant 1.6-4.7%. The strengthened fiber is the mixture of pre- preoxidated fiber and aramid fiber or, assistant is accelerant, activator, vulcanizing agent and antioxidant, the technique of the compound material is : plasticate the flexible sticker, mixing the strengthened fiber, inorganic filling material having been prepared, the enlarged-volums fiber and assistant, press into slices, sulfurate to acquire the product. The material has solved the problems such as the unsatisfying range of temperature of the present material NAFC, high productive cost, bad antitensile stress and aging, it is a new NAFC resistant to high temperature, with low cost.

The invention relates to the sealing field, in particular to a sealing element and a compression packer with the sealing element. A sealing element, comprising a sealing body, the sealing body includes: a through hole penetrating through the sealing body; a sealing surface, formed on the outer surface; an inner force bearing surface, formed on the inner surface and close to the end of the sealing body, and the inner side is stressed The surface is arranged around the through hole, and the inner force-bearing surface shrinks gradually from outside to inside so that the inner force-bearing surface is in a shrinking shape as a whole; and the axial force-bearing surface is formed on the side wall; when the axial force-bearing surface is axially squeezed When the inner force-bearing surface is pressed outward, the outer surface protrudes radially to drive the sealing surface formed on the outer surface to protrude radially for sealing. According to the sealing element of the present invention, since the axial force-bearing surface and the inner force-bearing surface can be simultaneously squeezed and deformed, the deformation capacity of the sealing element is increased, and the problem that the sealing element cannot be sealed due to insufficient deformation is effectively prevented.

The invention discloses a floating mechanism of a reactor. The floating mechanism comprises a rack plate, two horizontal rods are parallelly arranged below the rack plate in the front-back direction,and each horizontal rod is provided with two slide sleeves; a connection rod is welded between each front slide sleeve and the corresponding rear slide sleeve, screws are matched between the slide sleeves and the horizontal rods, and first connection rods are hinged between the rack plate and the slide sleeves; the horizontal rods are provided with first slide sleeves, rings for fixing are weldedto the upper and lower ends of the first slide sleeves, floating barrels are assembled between the rings of the front and rear sides, and first screws are assembled between the rings and the floatingbarrels; second screws are assembled between the first slide sleeves and the horizontal rods, and holes for reaction equipment to be installed in vertically run through the top of the rack plate. According to the floating mechanism of the reactor, the supporting height of the rack plate can be flexibly adjusted.

The invention relates to a silicon rubber / polyurethane rubber composite hydraulic sealing gasket and a preparation method thereof. The silicon rubber / polyurethane rubber composite hydraulic sealing gasket is prepared from methylvinylsiloxane rubber, polyether based polyurethane rubber, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, diphenyl silanediol, hexamethyldisilazane, gas-phase white carbon black, modified wollastonite and the like. The methylvinylsiloxane rubber, which has the advantages of excellent heat resistance, excellent freezing resistance, excellent ozone resistance, excellent atmospheric aging resistance and small permanent compression set, and the polyurethane rubber with favorable mechanical properties are compounded and blended, so that the respective advantages are displayed, thereby enhancing the sealing property of the sealing material; and in the blending process, the organically / inorganically modified wollastonite is added to obviously improve the dispersity of the wollastonite in the rubber, thereby enhancing the mechanical strength, oil resistance, wear resistance, high temperature resistance and other properties of the sealing material.