80results about How to "Low construction environment requirements" patented technology

The invention discloses a construction method for an H-type steel stiff column with a cross fracture surface. The construction method includes the steps of measuring and positioning, inspecting and checking before hoisting the H-type steel stiff column, hoisting the H-type steel stiff column in place, fixing the H-type steel stiff column temporarily, correcting the H-type steel stiff column, fixing the H-type steel stiff column, welding H-type steel stiff column and the like. The axis and perpendicularity of section steel column installation can be controlled accurately, structural construction is high in precision, construction quality is reliable, and the construction method is suitable for installation and construction of the H-type steel stiff columns with the cross fracture surfaces in a high-rise building, a super high-rise building, a long-span structure and a common structure.

The invention discloses a UV imitated super abrasion resistant floor paint which consists of component A and component B, when in use, the weight ratio of the component A and the component B is equal to 10:1 to 10:3, and the proportion is uniformly mixed. The formula of the floor paint consists of following components by weight portion, wherein, component A: 45-70 portions of polyisocyanate resin, 20-30 portions of butyl acetate, 10-30 portions of cyclohexanone; component B: 20-40 portions of alkyd resin, 0.1-30 portions of aldehyde ketone resin liquid, 0.1-10 portions of the cyclohexanone, 1-2 portions of defoamer, 5-10 portions of anti-settling agent, 5-65 portions of abrasion resistant addition agent A, 5-65 portions of abrasion resistant addition agent B, and 0.5-2 portions of levelling agent. Compared with the prior art, the invention has following advantages: 1. excellent abrasion resistance; 2. good slip resistance and contamination resistance properties of a painted surface, as well as good chemical resistance property; 3. free from the use of a specialized UV coating light curing tool during usage and construction, forming the pitted surface paint film of the UV imitated floor paint, with convenient construction and low requirements on construction environment; 4. good painted surface decoration effect, being similar to the UV floor paint, with greater cost competitive advantage on market.

The invention discloses a bucket positioning method, which is applied to an excavator and comprises the following steps of: specifying a positive direction by adopting a right hand rule and establishing an excavator kinematics model; C; calculating a movable arm fulcrum coordinate according to the coordinate of the antenna phase center in the geographic coordinate system and the position vector ofthe antenna phase center measured by the RTK in the geographic coordinate system; C; calculating the rotating angle of the movable arm according to the excavator mechanical parameters and the movablearm inclination angle; C; calculating a bucket rod rotation angle according to the bucket rod inclination angle and the movable arm rotation angle; C; calculating the bucket rotation angle accordingto the bucket inclination angle, t, the movable arm rotation angle and the bucket rod rotation angle; A; and calculating the position of the shovel tip by establishing a DH matrix model according to the coordinates of the movable arm fulcrum. The method can solve the problem that the excavator is difficult to accurately calculate and position the bucket.

The invention belongs to the technical field of waterproof coatings, and in particular relates to a rapid macromolecule machine-sprayable demulsification solidification filming waterproof coating and a preparation method thereof. The rapid macromolecule machine-sprayable demulsification solidification filming waterproof coating consists of a component A and a component B, wherein the component A consists of the following components in percentage by weight: 25-35% of macromolecule, 20-40% of water, 1-5% of an emulsifying agent, 20-50% of rubber latex and 0-5% of packing; the component B consists of the following components in percentage by weight: 30-40% of a demulsification agent and 60-70% of water. The waterproof coating can be rapidly demulsified and dehydrated to form a coating waterproof protecting layer which is excellent in waterproof property, after the coating is sprayed, the coated layer is dried into a film, the high elasticity, the low temperature flexibility and the aging resistance of a rubber material are maintained, and the coating has the advantages of high puncture force resistance, water permeation prevention, temperature resistance, freezing resistance, chemical corrosion resistance, cracking resistance and the like.

The invention provides an ultra-low temperature resistant and high-strength rubber asphalt waterproof material and a preparation and construction method thereof. The ultra-low temperature resistant and high-strength rubber asphalt waterproof material is composed of anionic emulsified asphalt, rubber emulsion, plasticizer and additives, the weight parts of the anionic emulsified asphalt is 60-40, and the weight parts of the rubber emulsion is 40 ~60, the parts by weight of the plasticizer are 0.1~10, the parts by weight of the additives are 3~7; the glass transition temperature of the rubber emulsion is lower than -20°C; the plasticizer is o Phthalate esters and/or phthalates; the material does not break at a low temperature of -40°C to -50°C after being cured into a film.

The invention provides an anticorrosive material for metallic equipment. The material comprises a rubber-asphalt anticorrosive coating material and an organic acid type curing agent, wherein the organic acid type curing agent consists of one or more of citric acid type curing agent, sorbic acid, amino naphthalene disulfonic acid and tartaric acid, and an anti-rusting agent is added in the rubber-asphalt anticorrosive coating material and is prepared from one or more of zinc phosphate, modified zinc phosphate and zinc molybdate, a surfactant, a wetting agent, a dispersing agent and deionized water. According to the anticorrosive material for the metallic equipment and the preparation and construction methods thereof, the anti-rusting agent is innovatively added in the anticorrosive material for the metallic equipment, so that the anticorrosive material for the metallic equipment, prepared by using the anti-rusting agent, has more excellent corrosion resistance while guaranteeing environmental friendliness; meanwhile, the weather resistance is very excellent, and the service life of the metallic equipment is greatly prolonged; the organic acid type curing agent, of which the corrosiveness to metal can be neglected, is used innovatively, and the required curing performance can be effectively guaranteed by the organic acid type curing agent.

The invention provides an inclined pile vertical anchor rod supporting structure for foundation pit supporting and a construction method thereof. The supporting structure comprises inclined slope protection piles, pile top beams and anchor rods. A row of the inclined slope protection piles are arranged on the edges of a foundation pit, and the bottoms of the inclined slope protection piles extend into the lower soil layer of the bottom of the foundation pit. The supporting structure is characterized in that the anchor rods comprise vertical pre-stress anchor rod bodies arranged in the stable soil layer between every two adjacent inclined slope protection piles and inserted and anchored in the stable soil layer from the ground between every two adjacent inclined slope protection piles, and the pile top beams are in rigid connection with the tops of the inclined slope protection piles and in flexible connection with the upper portions of the vertical pre-stress anchor rod bodies. The supporting structure and the construction method are particularly applied to the adjacent existing building foundation pits with limited underground space, and have the outstanding advantages of supporting the adjacent existing building deep foundation pits, and being good in supporting effect, convenient to construct, simple in working procedure and low in cost.

The invention provides a transverse moving flat car of a portal crane and a transverse moving method, and solves the problems of reassembly, prolonging of the construction period and increment of the cost in transverse movement of the portal crane from one set of operation rails to the other set of operation rails or even multiple sets of operation rails. The transverse moving flat car of the portal crane comprises a connecting beam, two walking mechanisms, two jacking systems, a rail bracket and a walking mechanism traction device; the two walking mechanisms are positioned at two ends of the connecting beam, and are connected through the walking mechanism traction device; the walking mechanisms can linearly move back and forth along portal crane operation guide rails; the two jacking mechanisms are positioned on the inner sides of the two walking mechanisms; one ends of the jacking mechanisms are arranged on the rail bracket; the rail bracket is matched with transverse moving flat car operation guide rails; the portal crane operation guide rails are arranged below the rail bracket; and the other ends are contacted with the connecting beam.

The invention discloses a paint for packing anti-counterfeit paper and a preparation technique thereof. The paint comprises the following components with mass proportion: 8 to 12 portions of cellulose acetate butyrate resin, 6 to 8 portions of additive resin and 82 to 90 portions of solvent. The invention has good reappearance effect of holographic patterns, clear holographic pattern details and strong radial visual effect, thus reappearing that the anti-counterfeit patterns on a holographic plate transfer onto the paper and achieving the anti-counterfeit purpose; the printing application range is wide, so various printing modes and techniques can be used; and the paint is easy to construct and has low requirements to the construction machinery and construction environment and belongs to the general-purpose product.

The invention belongs to the technical field of buildings and particularly relates to a waterproof structure used for an abutted seam position of a 3D printed building. The waterproof structure used for the abutted seam position of the 3D printed building comprises a T-shaped waterproof buckle embedded into an abutted seam of an outer wall. The T-shaped waterproof buckle comprises a top cover plate and a clamping strip. The top cover plate covers a wall seam, and the clamping strip is clamped inside the seam. Elastic seal paste is filled between the T-shaped waterproof buckle and a wall body for caulking. The outer side of the T-shaped waterproof buckle is further covered with a waterproof coiled material. According to the provided waterproof structure used for the abutted seam position of the 3D printed building, in the construction process of the 3D printed building, the waterproof problem in the abutted seam position between a roofing board and an outer wall plate. All the members can be subjected to industrialized batch production. The requirement of a construction environment is low. The technical threshold of constructors can be reduced through an assembly-type construction mode. The waterproof structure used for the abutted seam position of the 3D printed building has positive significance to the construction, use and popularization of the 3D printed building.

The invention relates to the technical field of coating preparation, in particular to a special anticorrosive coating for a steel structure and a preparation method thereof. The invention relates to aspecial water-based acrylic acid modified alkyd anticorrosive coating for a steel structure. The special water-based acrylic acid modified alkyd anticorrosive coating is prepared from water-based acrylic acid modified alkyd resin, a dispersing agent, deionized water, an anti-settling aid, pigment, filler, an antirust base material, a leveling aid, a defoaming agent, an anti-flash-rust agent and athickening agent. The anticorrosive paint combines the advantages of alkyd resin paint and acrylic resin paint, has excellent drying speed, water resistance, weather resistance and corrosion resistance, can be used for construction under severe conditions of low temperature and high humidity, and has favorable adhesive force and corrosion resistance for substrates with a small amount of oil stains and rust on the surfaces.

The invention relates to a polyurethane plastic material, which is prepared from the following raw materials by mass: 35-55wt% of polyether polyol; 7-15wt% of isocyanate; 10-20wt% of a plasticizer; 15-25wt% of an inorganic filler; 1-3.0wt% of a colorant; 0.5-2.0wt% of a wetting dispersant; 0.1-3.0wt% of an antioxidant; 1-5wt% of oxazolidine; and 0.1-2wt% phosphoric acid. The invention also discloses a preparation method of the polyurethane plastic material, and the method comprises the following steps of: (1) adding polyether polyol and additives into a reaction kettle, performing dehydratinguntil the water content of the system is lower than 0.05%, and conducting cooling; (2) adding isocyanate, carrying out reaction for 2-3h, and carrying out dehydration and cooling; (3) adding oxazolidine and phosphoric acid; and (4) uniformly mixing the product with water and a catalyst, and conducting flattening and curing to obtain the polyurethane plastic material. The polyurethane plastic material prepared according to the invention has a stable micropore structure and unshrinkable foam pores, is convenient to construct and has low requirements on construction conditions.

The invention discloses a water-based steel structural anti-corrosive coating. The water-based steel structural anti-corrosive coating is prepared from, carbon titanium modified acrylic resin, dispersing agent, wetting agent, pigment, filler, anti-foaming agent, anti-flash-rust agent, anti-sinking agent, coalescing agent, thickening agent, pH adjusting agent, fungicide, and de-ionized water. The water-based steel structural anti-corrosive coating can carry out construction along with rust, and has low requirement on construction environment, thus the coating labor intensity is largely reduced; especially, the coating has super-strong scratching self-repair ability, and the heavy anti-corrosive field needs not use the zinc-enriched primer, thus the environmental protection property and reliability of the heavy corrosion prevention are greatly increased. The water-based coating is applied to the heavy corrosion prevention, and the construction simplicity and corrosion prevention are better than the existed oily coating. The coating has very strong weather resistance, and can realize the long-term protection under the condition of thin coating thickness.

The invention discloses a steel bridge floor pavement structure containing polyurethane modified polymers. The steel bridge floor pavement structure comprises a steel bridge floor, wherein an interlayer is laid on the steel bridge floor through a bonding layer; a wearing layer is laid on the interlayer; the bonding layer is made of special glue for bi-component polyurethane modified resin, and is 1-2 mm thick; the interlayer is made of bi-component high-thixotropic polyurethane modified polymer gravel, and is 6-7 mm thick; the wearing layer is made of bi-component polyurethane modified polymer gravel, and is 2-3 mm thick; the materials of the bonding layer, the interlayer and the wearing layer are all solidified at normal temperature.

The invention discloses an anti-corrosion structure for a chimney. The anti-corrosion structure comprises a first coat (2), an adhesive layer (3) and a titanium plate layer (4) which are arranged in sequence, wherein a chimney base (1) is coated with the first coat (2), and the titanium plate layer (4) adheres to the first coat (2) through the adhesive layer (3). The invention further discloses a construction method of the anti-corrosion structure for the chimney. The method comprises the steps of cleaning the chimney base, coating the cleaned chimney base with the first coat material, applying adhesive and sticking a titanium plate after the first coat material on the chimney base is solidified, and conducting inspection and repair. According to the method, the lapped titanium plate is directly stuck onto the structural layer of a chimney by means of the titanium plate adhesive. The method has the advantages that construction period is short, the requirement for the site construction environment is low, and the problem that titanium plate welding quality is poor due to poor construction site welding environment is solved.

The invention discloses a preparation method of solvent-free elastic metallic paint producing high thermal radiation. The preparation method comprises the following steps of 1, preparing an elastic weather-resistant resin, composite cellulose acetate butyrate slurry, and a yellowing-resistant elastic curing agent, 2, respectively preparing a component A comprising the elastic weather-resistant resin, a fluorocarbon resin, the composite cellulose acetate butyrate slurry, a wetting dispersant, an ultraviolet light absorber, a light stabilizer, a nano-titanium aldehyde powder, a directional alignment assistant, aluminum powder, a leveling agent and an active toughening agent, and a component B comprising the yellowing-resistant elastic curing agent and an HDI tripolymer, and 3, mixing the component A and the component B according to the ratio of 1: 1, and carrying out uniform dispersion to obtain the solvent-free elastic metallic paint. The solvent-free elastic metallic paint has characteristics of excellent elasticity, excellent stain resistance, high/low temperature deformation resistance, good color retention, good gloss retention, low-temperature film formation and environmental protection, has good heat-insulating properties and water resistance, can cover external wall tiny-cracks produced by deformation, and solves the problem that the existing metallic paint for an external wall crazes easily, has poor color retention and gloss retention, and poor high/low temperature deformation resistance.

The invention relates to the technical field of building materials, and especially relates to a phosphorus and magnesium anchoring glue and a preparation method thereof. The glue comprises, by weight,80-120 parts of dead-burned magnesia, 80-120 parts of ammonium dihydrogen phosphate and 10-20 parts of water. The preparation method includes the following steps: S1, taking 80-120 parts of the dead-burned magnesia and 40-60 parts of ammonium dihydrogen phosphate, and performing dry mixing until uniformity in order to obtain a dry material mixture; S2, adding 10-20 parts of the water to the dry material mixture, and performing stirring and mixing until uniformity in order to obtain a wet material mixture; and S3, adding 40-60 parts of the ammonium dihydrogen phosphate to the wet material mixture, and performing stirring and mixing until uniformity in order to obtain the phosphorus and magnesium anchoring glue. The phosphorus and magnesium anchoring glue has can firmly bond to steel and other metals, has an excellent reinforcement performance, no special requirements for anchoring or fixing parts, very low creep and shrinkage and good resistance to acid and groundwater corrosion, is suitable for rapidly anchoring post-anchor bolts (reinforcements) and anchor poles of concrete structures, and has excellent application prospects in the fields of rapid repairing, first-aid repairing and reinforcement.

The invention relates to a welding slag splashing prevention coating and a preparation method thereof. The welding slag splashing prevention coating is a single-component coating, and is prepared by taking organic silicon resin as a binder, taking aluminum tripolyphosphate, zinc phosphate, mica powder, feldspar powder, mica iron oxide red, mica iron oxide ash and other inorganic matters as high temperature resistant anticorrosive pigments and fillers, and supplementing other functional additives. In allusion to the problem that welding slag ash generated in the metal welding process scatters,the attractive appearance of equipment is affected after cooling, and corrosion of a metal base body can be accelerated, organic silicon resin is adopted as a coating system film-forming base material, and the advantages of good temperature resistance and low surface energy of an organic silicon material are utilized to perform high-temperature protection on the metal base material, so that splashes cannot be attached to the surface of metal; strong inorganic antirust pigments and fillers are introduced into the coating system, so that the anticorrosive performance of the coating can be enhanced, a base material is subjected to corrosion protection, and the requirement of the base material on a construction environment is reduced. The preparation method is simple and convenient to construct, and can be widely applied to the fields of ships, bridges, maritime work equipment construction and the like.