49results about How to "Improve the strength of resistance" patented technology

The invention belongs to the field of casting materials, and in particular relates to an oxygen-releasing quick curing patching material as well as a preparation method and application of the material in the field of quickly repairing pavements. The oxygen-releasing quick curing patching material provided by the invention consists of 60-95 parts of compact aggregate, 4-30 parts of thermoplastic resin bonder and1-10 parts of a thermal initiation latent curing agent which can induce the thermoplastic resin bonder to be quickly cured in a heated state, and 0.5-1 part of solid oxidant which is heated to release oxygen. The patching material in the heated state can release a small amount of oxygen and support combustion of heat release of combusting substances so as to provide heat required by curing the patching material, and therefore, the purposes of quick curing and repairing are realized.

The invention relates to an efficient, energy-saving and level-A1 fireproof composite thermal insulation material. The thermal insulation material is formed by mixing and stirring sepiolite, fibrous brucite, cement 425, an adhesive, a foaming agent, hydrophobic expanded perlite and polystyrene granules in different weights. The appearance of the thermal insulation material is of dry powder fibers in bulk. After the thermal insulation material is mixed and stirred with water, the thermal insulation material can be directly sprayed on the outer wall, inner wall and roof of a building or between stairs according to certain thickness. The thermal insulation material has the characteristics of thermal insulation, energy conservation, flame resistance, environmental friendliness and water prevention, and is simple and rapid to construct. Thus, the thermal insulation material provided by the invention is suitable for the thermal insulation of various house buildings, so as to achieve the efficient and energy-saving effect.

The invention discloses a multifunctional water collection tank of a high-order water-saving cooling tower. The multifunctional water collection tank comprises a water tank body, a connection flange, notch reinforcement ribs, an outwards protruded reinforcement rib, a bearing and lifting steel band and a transverse lifting rod, wherein the water tank body comprises a water collection tank body and an upper arc drainage side plate; the upper arc drainage side plate is arranged above one side wall of the water collection tank body; the bearing and lifting steel band covers the outer surface of the water collection tank body and is fixed by and covered with the notch reinforcement ribs; two ends of the transverse lifting rod are fixedly mounted at combination parts of the notch reinforcement ribs and the bearing and lifting steel band. The notch reinforcement ribs and the outwards protruded reinforcement rib are arranged on the outer side surface of the water tank body, so that demolding is facilitated, and the overall strength of the water tank body is improved; the bearing and lifting steel band and the notch reinforcement ribs are additionally arranged at the lifting position, so that the weight of the water collection tank is concentrated on the bearing and lifting steel band and the notch reinforcement ribs; the inner side surface of the upper arc drainage side plate is smooth, so that smoothing of air flow is guaranteed, and the problems in the prior art are ideally solved.

The invention belongs to the field of road construction, and in particular relates to a method for rushing to repair damaged road surfaces rapidly. The method for rushing to repair the damaged road surfaces rapidly comprises the following steps of: (1) placing an electric heating device to the pits of the damaged road surfaces; and (2) filling repairing materials into the pits of the damaged road surfaces, covering the electric heating device, meanwhile starting up the electric heating device, and heating for 50-70 minutes so as to enable the repairing materials to be heated up and cured, thereby repairing the damaged road surfaces. The repairing materials consist of 60-95 parts of dense aggregate, 4-30 parts of thermoplastic resin bonding agents as well as 1-10 parts of thermal initiation latent curing agents capable of inducing the thermoplastic resin bonding agents to be cured rapidly under the heating state. By utilizing the method, high-intensity road surface base materials can be formed within 50-70 minutes under the heating state, and the time for rushing to repair and curing is shortened greatly.

The invention provides a glass rib curtain wall system, which comprises a glass rib, as well as a vertical hanging connecting piece and a horizontal supporting piece, wherein the upper end of the glass rib is hung on an upper main body structure through an upper switchover piece, and the lower end of the glass rib is inserted into a caulking groove of a lower switchover piece fixed on a lower main body structure; a clearance is reserved between the lower end of the glass rib and the bottom of the caulking groove; the vertical hanging connecting piece extends in or parallel to the direction of a vertical joint of a glass panel, and the upper end of the vertical hanging connecting piece is fixed on the upper main body structure; and the horizontal supporting piece is embedded in the transverse joint of the glass panel used for forming a curtain wall, and is fixedly connected with the vertical hanging connecting piece or directly fixed on the side surface of the length direction of the glass rib. The glass rib curtain wall system can meet the requirements for a wide range glass rib curtain wall design, and the glass rib can be machined and assembled in a job shop, as long as bolts on the switchover pieces of fixed steels are hoisted and mounted on the main body structure on the spot.

The invention discloses a composite flame retarding reinforced plate which comprises a plate body. The plate body comprises a substrate. The upper surface and the lower surface of the substrate are respectively provided with a face plate and a back plate in a hot pressing composite mode. Faces, far away from the substrate, of the face plate and the back plate are fixedly connected with reinforcing plates. A flame retarding layer is wrapped on the outer wall of the plate body. The composite flame retarding reinforced plate is simple in structure, convenient to process, wide in application range, and suitable for market promotion. The faces, far away from the substrate, of the face plate and the back plate are fixedly connected with the reinforcing plates so that anti-impact strength is improved. The flame retarding layer is wrapped on the outer wall of the plate body so that flame retarding performance is improved.

The invention provides a flame-retardant low-release material layer-stranded optical cable and a preparation method thereof. The flame-retardant low-release material layer-stranded optical cable comprises a reinforcing structural member located in the center of the cable, a plurality of optical fiber units surround the reinforcing structural member along the edge of the reinforcing structural member, and the plurality of optical fiber units are wrapped by a metal composite belt. Gaps between the plurality of optical fiber units and the metal composite belt are filled with a cable core filler and a cable opening rope; the metal composite belt is wrapped by a flame-retardant belt, a foaming cushion layer is extruded outside the flame-retardant belt, and a flame-retardant sheath is extruded outside the foaming cushion layer. Nitrogen is filled into the sheath layer and the foaming cushion layer, so that an isolation layer is formed, flame retardance is carried out through a suffocation method, a magnesium-aluminum flame-retardant film with flame-retardant PE as a base material is attached to the surface of the flame-retardant belt developed in a matched mode, a water vapor layer can be formed after combustion is carried out, and therefore the flame-retardant performance is improved, flame-retardant materials are replaced with flame-retardant gas and moisture to reduce emission of released substances after combustion, the lateral pressure resistance and bending resistance of the product are improved, and the applicability of the product is improved.

The invention discloses a locomotive cabin self-cleaning decorating plate which comprises a plate body. An enhanced panel is arranged at the back of the plate body, enhanced beams are arranged between the enhanced panel and the plate body and are evenly distributed along the width direction of the plate body, bonding layers are filled in gaps among the enhanced beams, the plate body and the enhanced panel, and a nano self-cleaning layer is coated on the front surface of the panel. The locomotive cabin self-cleaning decorating plate is simple in manufacturing process, the enhanced panel can function in moisture protection, overall anti-shock strength can be improved by the aid of the enhanced beams arranged between the enhanced panel and the plate body, the locomotive cabin self-cleaning decorating plate is suitable for long-time use, and the nano self-cleaning layer has an obvious anti-staining effect.

The invention relates to the field of automobile part machining and discloses a cold pressing technology of an automobile shock absorber support lug. The cold pressing technology comprises the following steps: carrying out cutting and grinding on a steel plate used for manufacturing the support lug, preventing a die from being damaged, reducing stress and preventing impact cracks from occurring; further carrying out tempering treatment on a cut component twice so as to improve the resistance strength of the steel material, reduce the yield strength of the steel material, reduce the yield ratio of the cut component and facilitate one-step forming; and soaking the cut component in an absorbing solution and dragging freely moving electric charges together, form a net shape, so as to reduce an anisotropic coefficient in the plate surface of the steel plate and reduce great resistance brought by anisotropic difference; and increasing a clearance during pressing forming and increasing the power of a press, so that pressing forming is finished at a time, and the working efficiency is increased. Through one series of detail treatment methods, the obtained support lug has the advantages that the thickness is accurate and uniform, repeating conformity is great, the surface is smooth, scar-free and scratch-free, the inner part is free of cracks, and the service life of the die is prolonged.

Belonging to the technical field of plastic products, the invention discloses a glaze-imitating colored plastic glazed tile and a preparation method thereof. The glazed tile comprises an upper layer and a lower layer, the upper layer comprises the following raw materials by mass percentage: 65-75% of AS resin, 15-30% of an AS resin modifier, 2.5-3.5% of a coloring pigment I, and 0.5-5% of an assistant I; the lower layer comprises the following raw materials by mass percentage: 50-60% of PVC resin, 30-40% of nano-active CaCO3, 3.5-5% of an additive II, and 0-3.5% of a coloring pigment II; the AS resin modifier is at least one of ASA resin and acrylic ester; the coloring pigment I is a transparent pigment; and the nano-active CaCO3 crystalline form is a cubic crystal form. The glazed tile provided by the invention has good appearance effect and glaze-imitating effect, and the weatherability, impact resistance and environmental friendliness are all superior to clay glazed tiles in the prior art.

The invention relates to the field of automobile part machining and discloses a cold pressing technology of an automobile shock absorber support lug. The cold pressing technology comprises the following steps: carrying out cutting and grinding on a steel plate used for manufacturing the support lug, preventing a die from being damaged, reducing stress and preventing impact cracks from occurring; further carrying out tempering treatment on a cut component twice so as to improve the resistance strength of the steel material, reduce the yield strength of the steel material, reduce the yield ratio of the cut component and facilitate one-step forming; and soaking the cut component in an absorbing solution and dragging freely moving electric charges together, form a net shape, so as to reduce an anisotropic coefficient in the plate surface of the steel plate and reduce great resistance brought by anisotropic difference; and increasing a clearance during pressing forming and increasing the power of a press, so that pressing forming is finished at a time, and the working efficiency is increased. Through one series of detail treatment methods, the obtained support lug has the advantages that the thickness is accurate and uniform, repeating conformity is great, the surface is smooth, scar-free and scratch-free, the inner part is free of cracks, and the service life of the die is prolonged.