477results about How to "Play a waterproof role" patented technology

The invention discloses an inorganic powder infiltration crystalline water-proof material which consists of 45 to 55 portions of 600#silicate cement, 20 to 25 portions of ultra-thin quartz sands, 25 to 30 portions of master batches, 1 to 5 portions of effective retarding water reducers and 1 to 5 portions of macromolecular tougheners and is manufactured by feeding the materials into a stirrer to be uniformly stirred. The inorganic powder infiltration crystalline water-proof material is characterized by having the advantages of secondary anti-permeability capacity, durable water-proof performance, high sticking performance, acid resistance and alkali matter resistance; besides, the inorganic powder infiltration crystalline water-proof material have the capacity of growing an insoluble crystal in the pores and the micro cracks of a concrete substrate to plug the pores and the micro cracks, thereby improving the anti-permeability capacity of the concrete and achieving the goals of anti-permeability and anti-leakage. The inorganic powder infiltration crystalline water-proof material can be broadly applied to the water-proof projects of railways, roads, ports and docks, culverts, dams and pools as well as large underground projects.

The invention belongs to the technical field of an energy-saving building material, and relates to high-performance cast-in-place foam concrete and a preparation method thereof. The high-performance cast-in-place foam concrete is prepared from the following raw materials in parts by weight: 100-520 parts of cement, 25-180 parts of admixture, 80-320 parts of lightweight aggregate, 0.8-6.4 parts of foaming agent, 75-300 parts of water, 1.6-12 parts of additive and 2-28 parts of modifier in a mixing manner. The foam concrete prepared by the preparation method is light in weight, high in strength, excellent in waterproofness, good in heat preservation effect, free of poison, durable and the same as a building in service life, and is suitable for casting internal and external wall bodies in place, roof and ground heat preservation and foundation pit backfill of a pier pavement and the like.

The invention provides a scumbling type polyurethane waterproof paint and a usage method thereof. The polyurethane waterproof paint comprises a seal primer, a polyurethane waterproof bottom surface paint and a polyurethane waterproof surface paint, wherein polyurethane waterproof bottom surface paint comprises an A1 component and a B1 component; the A1 component comprises 40-60 parts of polyether polyol, 13-28 parts of titanium dioxide, 13.9-19.9 parts of a filler, 2.1 parts of a coalescing agent and 10 parts of a solvent by weight; the B1 component comprises 40-60 parts of isocyanate and 0-20 parts of a solvent by weight; the polyurethane waterproof surface paint comprises an A2 component and a B2 component; the A2 component comprises 40-60 parts of polyether polyol, 22-37 parts of titanium dioxide, 6.5-12.5 parts of a filler, 2.5 parts of a coalescing agent and 8 parts of a solvent by weight; and the B2 component comprises 40-60 parts of isocyanate and 0-20 part of a solvent by weight.

The invention belongs to the field of an external wall insulation material of a building, and particularly relates to a high-performance foam concrete insulation board and a preparation method thereof. The high-performance foam concrete insulation board is prepared from the following raw materials in parts by weight: 45-250 parts of cement, 10-125 parts of admixture, 6-30 parts of foaming agent, 40-130 parts of water, 0.8-5.5 parts of additive, and 2-11 parts of modifier in a mixed casting manner. The insulation board provided by the invention is light in weight, high in strength and excellent in waterproofness.

This invention relates to a proton exchange membrane fuel cell plate, specifically, a manufacturing method of the flexible graphite material both-side trench plate used for fuel cell, 1) place the expanded graphite plate into dipping tank, vacuum impregnation, joining epoxy resin solution, the weight of the plate increased by 15-50%; drying the dipped plate in the 80~100degreeC; 2) once again place the epoxy resin drying plate into the dipping tank, vacuumed impregnation, then joining phenolic resin solution, the weight of the plate increased by 10-30%, drying the dipped plate in the 80~100degreeC; 3) then repress the drying plate with the plate repression machine, and place the repressed graphite plate on the both-side trench metal mold, pressing to form the shape, the pole plate of both surface having trench; 4) the formed plate processing ascending temperature and heat treatment to solid the resin. The advantages of the invention are: the pole plate having good plastic before molding, and material having good fluidity, and easy to mold for double-sided trench fuel cell pole plate.

The invention discloses a water suspension tunnel connector. The water suspension tunnel connector comprises two pipe sections in butt joint. Connector space is formed between the two pipe sections. The two pipe sections are connected through a damping structure and a sealing structure. The damping structure comprises a connecting sleeve arranged outside the two adjacent pipe sections in a sleeving manner, radial prestress inhaul cables connecting the two ends of the connecting sleeve with the two pipe sections, axial prestress inhaul cables located in the two pipe sections and coaxially arranged, and a tensioning device located between the two pipe sections and used for pulling the coaxial axial prestress inhaul cables. Compared with a traditional immersed tunnel connector, the water suspension tunnel connector is provided with the axial prestress inhaul cables and the radial prestress inhaul cables, vibration and deformation generated by the water suspension tunnel connector in the complex ocean environment can be avoided, and it is guaranteed that a GINA rubber water stop band cannot leak due to dislocation.

The invention discloses an outdoor power cabinet with waterproof and cooling functions. The outdoor power cabinet with the waterproof and cooling functions has a simple structure,when the outside temperature is too high,the heat of power equipment is too large,an airbag is heated and expanded,a second copper contact piece is promoted to contact a first copper contact piece,thereby turning on a circuit of a positive and negative rotation motor,blades are rotated,outside air is sucked into a cabinet body to cool the power equipment,when the humidity in the cabinet body is too large,a smectite powder bag absorbs water vapors to be expanded,so that a third copper contact piece abuts the first copper contact piece,the positive and negative rotation motor reversely rotates,the water vapors in the cabinet body are blown out,the functions of waterproofing and cooling of the cabinet body are achieved by a series of measures,and the cabinet has strong practicality.

The invention provides a waterproof structure of a liquid crystal display panel packing box. The waterproof structure comprises a first clamping portion and a second clamping portion. The first clamping portion is arranged on a base plate of the liquid crystal display panel packing box, at least one opening penetrating through the base plate is further arranged on the base plate, the first clamping portion is located between the opening and a lateral wall of the liquid crystal display panel packing box, the second clamping portion is arranged on a base face of a gasket of the liquid crystal display panel packing box, the position of the second clamping portion corresponds to that of the first clamping portion, and the second clamping portion is clamped with the first clamping portion when the gasket is placed on the base plate. The invention further provides the liquid crystal display panel packing box. The opening penetrating through the base plate and a clamping structure which mutually clamps are arranged on the base plate to lighten whole weight of the packing box, and a water vapor entering route is changed from a straight line to a folding line even though water vapor enters from the opening, accordingly the water vapor entering route is broken or prolonged to have waterproof functions.

The invention discloses a sealing structure between a motor shaft and a motor cover. The sealing structure comprises the motor shaft (2) and the motor cover (1); the motor cover (1) is provided with a shaft hole (13) which is coaxial with a bearing (6) and used for one end of the motor shaft (2) to extend out. The sealing structure is characterized in that the upper surface of the motor cover (1) is a circular lug (11) coaxial with the shaft hole (13) through integral forming; a concave circular groove (12) facilitating the outflow of liquid is formed between the bottom of the annular lug (11) and the upper surface of the motor cover (1); a housing (3) used for blocking water covers the circular lug (11). The sealing structure has the advantages that when a motor is arranged laterally, water on the motor can flow out of the circular groove along the motor cover and cannot enter the shaft hole of the motor cover; when the motor is straightly arranged, the housing has a waterproof function; besides, a sealing ring is formed outside the shaft hole, and an elastic retainer ring is sleeved outside the sealing ring, so that the sealing ring can be closely fitted with the motor shaft, the sealing property between the motor shaft and the motor cover is further improved and the water is prevented from entering the motor.

The invention relates to a wave-blocking concrete block. The wave-blocking concrete block is prepared from, by mass, 300-400 parts of 52.5 or 42.5 cement, 20-80 parts of mineral powder, 30-100 parts of nickel slag powder, 600-900 parts of nickel slag aggregate, 900-1200 parts of stones, 125-145 parts of water, 4-5 parts of a water reducing agent, 3-6 parts of an exciting agent, 20-30 parts of steel fibers, 2-5 parts of an infiltration crystalline waterproof agent and 2-5 parts of redispersible latex powder. The concrete surface is coated with a layer of two-component waterborne polyurethane coating or dipped with an organic silane solution after 28 days after casting of the wave-blocking concrete block. The durability problems of common wave-blocking concrete blocks which are not resistant to scour and salt tolerance are solved, meanwhile nickel slag is utilized, and the problems of resource waste and environmental pollution are solved to some degree.

The present invention discloses a non-cured rubber asphalt waterproof coating material, wherein the raw materials comprise, by weight, 25-35 parts of modified asphalt, 3-5 parts of styrene-butadiene rubber, 18-24 parts of methyl acrylate, 3-5 parts of a 120* solvent oil, 8-15 parts of regeneration glue powder, 23-26 parts of light calcium carbonate, 5-7 parts of carbon black, 4-9 parts of a rosin resin, 0.5-2.5 parts of an epoxy resin, 2-4 parts of calcium stearate, 3-5 parts of epoxyfuroic-oleic butyl, 2-3 parts of dihydroquinoline, 0.5-0.7 part of a light stabilizer 994, 0.6-0.8 part of phenyl salicylate, 0.5-1 part of PE-g-TS, 1-3 parts of diethylene triamine, 0.1-0.5 part of stearic acid, 0.05-0.1 part of zinc oxide, and 3-5 parts of vinyl triethoxysilane. The non-cured rubber asphalt waterproof coating material of the present invention has characteristics of good waterproof performance, good fire-retardant property, and high mechanical property.

The invention provides a resin waterproof zipper which comprises a zipper tape. A waterproof membrane is coated on the upper surface of the zipper tape, a plurality of teeth are respectively arranged at opposite edges of a left zipper tape and a right zipper tape and include upper zipper tooth portions and lower tooth portions, the upper tooth portions are configured on the upper surface of the zipper tape, and the lower tooth portions are configured on the lower surface of the zipper tape; each upper tooth portion comprises an upper fixing portion, a shoulder and a sharp and thin protruded extension portion, each upper fixing portion is fixed to the zipper tape, each shoulder is connected to the corresponding upper fixing portion, each protruded extension portion extends from the corresponding shoulder to the outer direction of the zipper tape, and the width of each protruded extension portion is gradually reduced towards the outer side direction of the zipper tape; each lower tooth portion comprises a lower fixing portion, a meshed head and a neck, each neck is connected between the corresponding lower fixing portion and the corresponding meshed head, each lower fixing portion is fixed onto the zipper tape, each neck and the corresponding meshed head are arranged on the side, which faces the outside of the zipper tape, of the corresponding lower fixing portion, and two side surfaces of each neck are recessed; each protruded extension portion is positioned in the middle of the corresponding meshed head; each neck is positioned in the middle of the corresponding shoulder. The resin waterproof zipper has the advantage that a waterproof effect of the zipper can be realized by the aid of the structures of the teeth, the waterproof membrane and a waterproof agent layer.

The invention discloses a hard phenolic foam composition, a sprayed hard phenolic foam coating, a preparation process and an application. The rigid phenolic foam composition is obtained by mixing composite phenolic resin and mixed acid in a mass ratio of 1-10:1. The above-mentioned hard phenolic foam composition is completely atomized and mixed uniformly at a pressure of 100-200kg and a temperature of 20-50°C, sprayed from a spray gun, and evenly sprayed on the wall to form a spray-coated hard phenolic foam Insulation. The obtained spraying hard phenolic foam coating can be applied to the field of waterproof, fireproof or thermal insulation materials.

The invention discloses a preparation method of a self-healing crack silicone cement waterproofing agent, which belongs to the technical field of waterproofing agent preparation. In the present invention, the prepared calcium silicate is used as a seed crystal, and then added to the organic silicon waterproof mixed slurry, concentrated by rotary evaporation, vacuum freeze-dried, supplemented with a complexing agent, and activated by mechanical grinding, thereby obtaining a self-healing crack silicone cement Preparation method of waterproofing agent. Examples prove that the operation of the present invention is simple and easy, and the water-repelling agent produced has a large amount of water reduction and a long plastic retention time. The hydrated cement particles undergo a hydration reaction to form dense hydration crystals to block the pores, capillaries and cracks of the concrete to achieve the purpose of waterproofing, and its self-repairing performance gradually increases the waterproofness over time.

The invention discloses dry-mixed plastering mortar and a preparation method thereof. The dry-mixed plastering mortar is prepared from the following components in parts by weight: 150 to 190 parts ofcement, 10 to 30 parts of fly ash, 100 to 140 parts of machine-made coarse sand, 370 to 390 parts of machine-made fine sand, 280 to 320 parts of river sand and 10 to 20 parts of an admixture. The preparation method comprises the following steps: drying river sand until the water content is lower than 0.5%, uniformly mixing the river sand, cement, fly ash, gypsum, machine-made coarse sand and machine-made fine sand, baking at 30-40 DEG C for 60-70 minutes, grinding for 10-20 minutes, finally adding an air entraining agent, a water reducing agent and an admixture, and uniformly mixing to obtainthe dry-mixed plastering mortar. The dry-mixed plastering mortar disclosed by the invention has the advantages of high bonding strength and good heat-conducting property; the preparation method disclosed by the invention has the advantages of simple steps and strong operability; and the prepared dry-mixed plastering mortar has the advantages of high bonding strength and good heat-conducting property.

The invention provides waterproof and moisture-permeable type polyurethane, which is prepared from the following raw materials in parts by mass: 110 to 150 parts of polyhydric alcohol, 45 to 60 partsof diisocyanate, 10 to 15 parts of fluorine-containing dihydric alcohol, 3 to 8 parts of fluorine-containing monohydric alcohol, 0.1 to 0.3 part of an organic metal catalyst, 7 to 10 parts of a hydrophilic chain extender, 5 to 8 parts of a neutralizer, 3 to 5 parts of a post-chain extender and 500 to 700 parts of water. According to the invention, polyhydric alcohol and diisocyanate are taken as main bodies, fluorine-containing dihydric alcohol is utilized to change the interface state of the material and improve the water resistance and moisture permeability, fluorine-containing monohydric alcohol is utilized to play a waterproof role in chain segments, and under the combined action of auxiliaries such as an organic metal catalyst, a hydrophilic chain extender and the like, the water resistance and moisture permeability are further improved. The embodiment shows that the polyurethane disclosed by the invention has the water pressure resistance of 78-88 KPa, the moisture permeability of 6.8-8.2 kg/m <2>/d and the air permeability of 5.7-6.3 mm/s.

The invention relates to the field of auto parts and specifically discloses a water-cooling injection mold. The water-cooling injection mold comprises a rack, a cooling pipe, a water tank, a mold bodyand a heat radiation mechanism. A water pump is fixed on the water tank. The mold body and the water tank are both fixed on the rack. The water tank is communicated with the cooling pipe. The heat radiation mechanism comprises a cylinder, a piston and a sink of the cylinder. The cylinder is fixed on the rack, the side wall of the cylinder is provided with a water outlet, and total water yield ofthe water outlet is greater than total water inflow of the cooling pipe. An air inlet check valve is fixed at the lower part of the cylinder. A spring is disposed inside the cylinder. The piston and the bottom of the cylinder are both fixed with a magnet. The piston is positioned above the air inlet check valve, and the piston is provided with an air outlet assembly. The air outlet assembly comprises an air outlet pipe and an air outlet check valve. The air outlet check valve is communicated with the cylinder. An air outlet end of the air outlet check valve is communicated with the cylinder. An air outlet end of the air outlet check valve is communicated with the air outlet pipe, and the upper part of the air outlet end is bent to be arch-shaped. The sink is communicated with a water inletend of the water pump. By the scheme, the quantity of water inlet pipes in a workshop which are communicated with the outside world can be reduced.

The invention discloses a method for constructing reinforced surrounding rock inside precast-segment tunnels. The method includes: embedding a precast formwork shell used for anchor rod construction in a precast reinforced concrete segment, drilling a hole in the surrounding rock via the precast formwork shell, and arranging one thrust piece at an end port of the precast formwork shell during the drilling process so as to reduce impact from transverse vibration of a drilling rod to the precast formwork shell; arranging one hollow grouting anchor rod in the hole drilled in the surrounding rock after the hole is drilled, arranging a grout stopping device on the hollow grouting anchor rod and connecting the same with a grouting joint pipe, and grouting the hole drilled on the surrounding rock to reinforce the same; after the grouting, taking down the grouting joint pipe, and arranging a detachable water stopping device at the end port of the precast formwork shell. The method has the advantages that a main structure of a tunnel and the anchor rod are tightly combined and form a bearing body commonly with the reinforced surrounding rock, influence from the construction to stability of the precast-segment tunnel is low, and the water stopping device is replaceable and good in waterproof effect.

The invention relates to an aluminum alloy van transportation semitrailer car and belongs to a semitrailer. The aluminum alloy van transportation semitrailer car is composed of a bottom plate, two side plates, a front plate, a top plate and a rear door plate installed on a rear door frame. The bottom plate comprises a first section bar, second section bars, third section bars, a fourth section bar and a fifth section bar, wherein the second section bars and the third section bars are symmetrical from left to right, and the fourth section bar and the fifth section bar are symmetrical from left to right. The second section bars and the third section bars are mutually connected, the second section bar on the far right side and the third section bar on the far left side are connected with the left side and the right side of the first section bar, the fourth section bar and the fifth section bar are respectively connected with the second section bar on the far left side and the third section bar on the far right side, the first, second, third, fourth and fifth section bars respectively comprises first, second, third, fourth and fifth flat plates and a plurality of first, second, third, fourth and fifth reinforcing ribs located below corresponding flat plates. The adjacent section bars are respectively connected through male and female plug-in connectors. The aluminum alloy van transportation semitrailer car is light in weight, free of rust and strong in bearing capacity and the service life of the car is promoted. Besides, the aluminum alloy van transportation semitrailer car is convenient to connect, large in strength of connecting portions and not prone to deformation, and the material can be recycled and reused.

The invention belongs to the field of shield tunnel shock absorption, and particularly discloses a self-resetting energy dissipation device for shield tunnel shock absorption. The device comprises steel core outer rings, waterproof gaskets, rubber gaskets and shape memory alloy rings, wherein the inner sides of the steel core outer rings are provided with inclination angles, and the outer sides ofthe steel core outer rings are provided with grooves; the waterproof gaskets are fixed in the grooves in the outer sides of the steel core outer rings, and the rubber gaskets attach to the outer sides of the waterproof gaskets and the steel core outer rings; the shape memory alloy rings are installed between the two steel core outer rings, and the surfaces of the shape memory alloy rings attach to the inclination angles at the inner sides of the steel core outer rings; and when external force is applied, the distance between the two steel core outer rings is compressed, the shape memory alloyrings deform due to extrusion of the steel core outer rings, expand outwards and generate restoring force at the same time, so that energy is dissipated, and the structure of the device is enabled toreset. The device has a good buffering effect, can dissipate energy, can also provide the restoring force, and plays a role in self-resetting after an earthquake, and thus the maintenance and replacement cost of a tunnel is reduced.

The invention discloses a bridge deck pavement surface layer structure and a maintenance construction method. The structure comprises a bridge deck concrete pavement layer and is characterized in that the bridge deck concrete pavement layer is coated with a bond waterproof layer with ester adhesives as primer, and a colloidal concrete pavement layer formed by blending a curing agent, polyurethane and aggregate is laid on the bond waterproof layer; and an anti-sliding layer is arranged on the colloidal concrete pavement layer. The structure has the beneficial effects that good integrality and waterproofness are achieved, it is ensured that a whole bridge deck is waterproof and free of water seepage, and therefore the waterproof effect is achieved; the good high-temperature-resisting performance is achieved; high wear resistance is achieved, and wear resistance of the structure is ten times that of common cement concrete; and good pressure resistance and the good bending resistance strength are achieved, the repeated effect of loads of a high-flow vehicle can be resisted, and it is ensured that the bridge deck is free of damage to grooves, cracks and the like. According to the construction method, the requirement for the construction environment condition is not high, no special construction tool is needed, no strict technological requirement is needed, and the engineering cost is relatively low.