649results about How to "Seamless" patented technology

The invention relates to an urban inland inundation intelligent modeling and analysis method based on a GIS and an SWMM. The method comprises the following steps: constructing a simulation system based on the GIS and the SWMM; carrying out automatic preprocessing on the model data and automatically identifying topology errors; calculating a hydrological-hydrodynamic coupling model based on the SWMM by combining rainfall, calculating the amount of rainwater converged into a drainage pipe network system, simulating to obtain actual condition information in the drainage pipe network, and obtaining pipe point overflow data; performing surface water inundation analysis according to the pipe point overflow data, simulating the surface water to obtain the depth of the surface water, and distributing the surface water flow based on a window method; performing early warning analysis on waterlogging of surface water, comprehensively considering prediction of the surface water, automatically dividing waterlogging risk levels of different areas according to a calculation result of a hydrological-hydrodynamic coupling model and a result of surface water inundation analysis, and providing an early warning scheme for drainage waterlogging prevention emergency. The method has the advantages of being low in construction cost, high in model construction automation degree and accurate in analysisresult.

The invention discloses a high-iron special flame-resistant polyurethane waterproof coating and a preparation method thereof. The high-iron special flame-resistant polyurethane waterproof coating comprises an A component of an isocyanate group terminated polyurethane prepolymer and a B component of a dense cure-crosslinking agent. The prepared double-component high-strength flame-resistant polyurethane waterproof coating has tensile strength of 3.5-10MPa, at-break elongation of 450-600 percent and concrete interface boning strength greater than 2.5MPa and is used by uniformly mixing the A component and the B component according to a certain proportion and coating the mixture on a concrete waterproof plane to solidify into an integral waterproof coating with elasticity, firmness and durability. The coating is suitable for concrete ballast bridge floors and non-ballast bridge floors of high-iron passenger special line bridges and railway bridge culvert waterproof engineering and is suitable for the waterproofness of other buildings and constructions with higher requirements on waterproof performance.

The invention relates to the technical field of PCB (printed circuit board) plating, in particular to a copper plating solution for PCB blind holes, as well as a preparation method and a plating method of the copper plating solution. Each liter of the copper plating solution comprises the following components according to contents: 100-300g of copper sulfate pentahydrate, 50-200g of sulfuric acid, 30-100ppm of chlorine ions, 5-50g of brightener, 3-30g of carrier, 2-20g of leveling agent and the balance of deionized water, wherein the concentration ratio of the copper sulfate pentahydrate to the sulfuric acid is (1.5-2): 1. The plating method comprises the following steps: putting a PCB with blind holes into a plating bath with the copper plating solution; plating during air agitation to obtain a copper plating layer. The copper plating layer formed by the plating method has a hole-filling rate as high as 97% above, and is dense, smooth, voidless, seamless, low in surface sediment thickness, relatively good in malleability, good in gloss, high in toughness and low in internal stress.

The heat insulating mortar consists of earth polymer powder 48-54 wt%, regenerated polystyrene grain 5-8 wt%, flyash 28-30 wt%, latex powder 8-10 wt%, polypropylene fiber 0.20-0.35 wt%, and functional additive 3-4 wt%. The present invention adopts earth polymer powder to replace Portland cement as inorganic cementing material, and the heat insulating mortar has high strength, low shrinkage, high resistance to acid and alkali corrosion, environment friendship and other advantages.

The invention relates to a production process of steel stranded wires, and in particular relates to a production process of an extra-high strength steel stranded wire for a long-span transmission wire. A raw material with a diameter of theta9.0mm and a steel grade of 82B is utilized to produce a 37-strand hot galvanizing steel stranded wire with a total diameter of 20.16mm and a single-wire diameter of 2.88mm for the long-span transmission wire. The production process comprises the following steps of: (1) coiling the raw material, carrying out surface treatment, and drawing a high carbon steel wire rod of theta9.0mm to theta8.5mm; (2) carrying out heat treatment, acid-washing, phosphating, and surface treatment on a wire rod; (3) drawing a finished product: carrying out 13-pass drawing processing by using a high-power and multi-pass LT-11/650 type water tank wire-drawing machine, wherein a compression ratio is 12-18.6%; (4) inspecting, putting online, hot galvanizing, and winding by using a spool; and (5) inspecting, and twisting. The production process of the steel stranded wire is simple in realization mode, and all indexes of the produced extra-high strength hot galvanizing steel stranded wire meet the technical requirements of long-span projects.

The invention relates to a construction process for plugging and consolidating a concrete crack through chemical grouting, which belongs to the technical field of concrete consolidation engineering and in particular relates to a concrete crack plugging and consolidating method. The construction process for plugging and consolidating the concrete crack through the chemical grouting comprises the following steps of the first step, opening a V-shaped groove, which is 20 mm wide at the upper part and at least 20mm deep, along the concrete crack; the second step, flushing the V-shaped groove; the third step, plugging the V-shaped groove; the fourth step, drilling a grouting hole; the fifth step, mounting a grouting head; the sixth step, performing grouting; and the seventh step, removing the grouting head. The construction process for plugging and consolidating the concrete crack through the chemical grouting, provided by the invention, is advantaged in that the grouting process is simple and convenient, the operation of the process is convenient, the crack is closely plugged without a gap, the plugged concrete crack is durable and fatigue-proof and not prone to crack again, the concrete crack plugging effect is good, the concrete surface is completely dry, leakage and moist are avoided, the thickness of a plugging and finishing coating on the surface of the crack is uniform, no missed brushing, no base exposure, no peeling, no swelling and no crack are achieved. And moreover, the process causes no pollution to the environment.

The invention discloses an expansion pipe repairing device which comprises an expansion pipe, an upper expansion cone, a lower expansion cone and a force applying component. The expansion pipe is a hollow pipe column extending along an axis. The pipe column is provided with a first port and a second port which are opposite. Each of the upper expansion cone and the lower expansion cone is provided with a conical surface. The conical surface of the upper expansion cone and the conical surface of the lower expansion cone are respectively clamped to the first port and the second port of the expansion pipe. The force applying component can drive the upper expansion cone and the lower expansion cone to move towards each other long the axis of the expansion pipe. By the expansion pipe repairing device, primary and secondary repairing of a casing damage well can be performed efficiently.

The invention provides a composite polyurethane foam sheet produced by using hard foam wastes. The sheet is prepared from, by weight, 60-150 parts of isocyanate, 100 parts of a polyol compound, 0.1-2 parts of a catalyst, 1-5 parts of a foaming agent, and hard foam wastes accounting for 60-90% of the total mass of raw materials. The sheet has the advantages of high utilization rate of the hard foam wastes, low energy consumption in the production process, provision of a new way for repeated utilization of the hard foam wastes, energy and material saving, and no influences on environment.

The dry mixed polymer mortar consists of quartzite 60-65 wt%, cement 20-25 wt%, limestone powder 8-12 wt%, amylase 3-3.5 wt%, thixotropic bentonite lubricant 1-3 wt%, organic silicon compound 1.5-2.0wt%, hydrophobic agent 0.15-0.20 wt%, methyl cellulose 0.20-0.30 wt% and cellulose fiber 0.30-0.60 wt%. It is one kind of green furnishing and decorating material and has the features of light weight, high strength, high adhesion, being fireproof, etc.

The invention relates to a low-carbon water granite paint which comprises 30-60 parts of composition A, 10-30 parts of composition B, 15-30 parts of composition C and 0.2-1.2 parts of thickener D. Compared with natural stone, the low-carbon water granite paint has the following advantages: 1. light dead weight: the low-carbon water granite paint can not increase the load to buildings, can be applied to the basal plane of the external wall without the risk of shedding, and is very suitable for external thermal insulation; 2. strong simulation sensation: the low-carbon water granite paint can be compounded to simulate various types of granite without color difference; 3. the low-carbon water granite paint is free from the restrictions of the complex basal plane, can be easily used for construction, and can completely cover the wall without seams; 4. the pointing construction can sufficiently display the tactile sensation of the decoration design of the dry-hanging stone; and 5. the surface of the coating can be treated to enhance the pollution resistance and weather resistance, thereby reducing the maintenance. Compared with the traditional real stone paint, the low-carbon water granite paint has the following advantages: 1. material saving and light dead weight as compared with the real stone paint simulated granite; 2. simple construction: the low-carbon water granite paint can be sprayed by only a single gun, but the real stone paint simulated granite needs to be sprayed by multiple guns; 3. the effect of the low-carbon water granite paint is more similar to the natural stone than the real stone paint simulated granite; and 4. when the low-carbon water granite paint is used for large-area construction, people can not feel color difference of uneven color dots caused by using the real stone paint simulated granite.

The invention relates to an automatic optical fiber gyroscope winding machine and an optical fiber winding method. The optical fiber gyroscope winding machine comprises a rack, a take-up tray, a spindle system, a sub-spindle system, a foot pressing system, a guiding system, a forward moving base, a backward moving base, a front pay-off tray base and a rear pay-off tray base. The optical fiber winding method comprises the processes of preparing, hanging a rear pay-off tray, removing the rear pay-off tray, hanging a front pay-off tray, removing the front pay-off tray, winding and arranging optical fibers. According to the technical scheme, the winding machine and the winding method can eliminate the drawbacks in the prior art, achieves automatic optical fiber winding, has the characteristics of uniform winding arrangement, no gap and the like, and can greatly improve the operation efficiency.

The invention provides a virtual practice training system of mechanical equipment. The virtual practice training system comprises a virtual editing module, an I/O (Input/Output) input module, a recognition processing module and an operation management module, wherein the virtual editing module is used for editing the content of a virtual scene; the I/O input module comprises a VR (Virtual Reality) display device, a data glove, a sound acquisition device and a movement capturing device, and is used for feeding back operation data of people to be trained; the recognition processing module is used for acquiring data information, fed back through the I/O input module, of the people to be trained, and analyzing and processing the data information to obtain a score conclusion; and the operation management module is used for establishing an operation database aiming at the people to be trained by the formed data content. The invention further provides a method for carrying out practice training by utilizing the virtual practice training system of the mechanical equipment. By adopting the virtual practice training system and method, provided by the invention, the teaching difficulty of traditional practice training can be broken through, the investment cost can be reduced, and the practice training activity of the people to be trained is improved.

A high-temp and-strength pouring material with low content of cement for high-temp furnace bauxite as aggregate, alumina powder, calcium aluminate cement, silicon ash, sodium hexametaphosphate, fine fibres and water. Its service life is about 24-month at three-level oscillation wave station.

A chemical copper plating solution for micropore filling. 1 L of the chemical copper plating solution comprises 5-20 g of copper sulfate pentahydrate, 10-50 g of disodium ethylene diamine tetraacetate, 1.0-1.5 g of formaldehyde or glyoxylic acid, 0.001-0.02 g of mercapto heterocyclic compounds, 0.02-0.04 g of polyether with an average molecular weight of 3650, 1.5-3.5 g of NaOH, and the balance of distilled water; the mercapto heterocyclic compounds are 2-mercapto benzimidazole, 2- mercapto benzoxazole, 1-phenyl-5-mercapto-tetrazole or 2-mercapto benzothiazole. By simultaneously adding mercapto heterocyclic compounds and polyether with an average molecular weight of 3650 into the chemical copper plating solution, the invention realizes no cavity, no gap of micropores, and perfect chemicalcopper filling; the chemical copper plating solution is stable; and the deposited copper film has good quality.

The invention relates to a shell, an electronic device and a production method for the shell. The production method for the shell comprises the following steps of a, providing plate glass and carryingout hot bending on each edge of the plate glass, thereby obtaining a glass body comprising a plate part and bended edges; b, carrying out thinning processing on the plate part at the side wherein anouter surface of the plate part of the glass body is; and c, carrying out surface processing on the outer surface of the glass body, thereby obtaining the shell comprising a main body and a side wallpart, wherein the side wall part is thicker than the main body. According to the production method for the shell, the hot bending is carried out to obtain the glass body and the thinning processing iscarried out on the plate part of the glass body to obtain the shell of which side wall part is thicker than the main body, so the operation is simple, and the production cost is reduced. The shell isan integrated structure and is seamless. The appearance of the shell is glittering and translucent, and a visual effect is good. The side wall part is thicker than the main body, namely, the thickness difference exists between the side wall part and the main body, so the stereoscopic impression of the shell is high, and the aesthetic feeling and hand feeling of the shell are improved.

The invention belongs to the technical field of networks and discloses a sales management system for a network. Nine modules of home page, task calendar, sales system, personal customer, customer service system, financial system, common tools, system management and recycling station are set. Customer data has wide sources and high authenticity. System data mainly comes from a recruitment website,a user can register for the recruitment website by himself or herself through a mobile phone, a tablet computer, a PC and the like to be a system customer and also can become the system customer through the participation in a job fair, the manual entry by a salesperson and the like. The data obtained by the recruitment website and the job fair is more authentic. The system can view the informationof an enterprise customer from a third party through an interface, and the authenticity of the data is improved. The system has no redundant function and is seamlessly connected to the recruitment website. The system is specially developed for the recruitment website and has no other redundant function, and at the same time, the functions of consultant management, job management and the like which do not exist in a similar system are added.

The invention relates to a railway steel bridge surface protective system, which comprises an epoxy zinc-enriched erosion resistant coating, a polyurea elastomer waterproof layer, a connecting layer and a concrete protective layer, wherein, epoxy zinc-enriched materials comprise a composition A and a composition B; the composition A comprises epoxy resin, organic bentonite, zinc powder, additives, inhibitive pigment A, inhibitive pigment B and solvent; the composition B is 115 curing agent, 650 curing agent and solvent; a polyurea elastomer comprises a material A and a material B, wherein, the material A is semi-prepolymer and thinner, and the material B is amine-terminated polyether, amine chain extender, color paste and thinner. The invention also relates to a construction technique for the railway steel bridge surface protective system. By adoption of the construction technique, the antirust property is superior; waterproof coating has superior physicochemical mechanical property; the waterproof layer has no seam; no dead angle exists during the construction process; the construction technique is simple and convenient, and the construction efficiency is high; the anticorrosive and waterproof problems of a steel bridge surface are solved; the durability of a bridge is improved; and the maintenance period and the service life of the steel bridge surface are prolonged.

The invention relates to a method for producing a finished product or semi-finished product technological board by using waste materials. The method comprises the following technological steps of: preparing materials; collecting the waste materials; cutting and crushing or breaking the collected waste materials; screening crushed materials with qualified size by using a screening machine; heating and softening the crushed materials; allowing the materials to enter a defibrator and performing hot grinding to form fibriform pulp; performing gluing by using an environment-friendly adhesive, wherein the applying quantity is 30 to 40 percent; drying, wherein the drying degree is that the water content is equal to or less than 5 percent; prepressing to form blank boards; performing hot moulding by using a hot press; and performing postprocessing to form the finished product. By the method, various technological boards can be manufactured by using the waste materials such as offcut of various materials, wood shavings, sawed bran, branches, straws, rice straws and the like. The method has the advantages of forming at a time and discarding the traditional process of sawing, planing and chiseling during production so as to improve production efficiency along with simple process, low cost and environmental friendliness.

The invention discloses a rod-shaped suspension type composite insulator for railway. The rod-shaped suspension type composite insulator comprises a ceramic rod insulator body, fitting accessories and an external insulation umbrella skin sheath, wherein the fitting accessories are arranged at the two ends of the insulator body by adhesives, the external insulation umbrella skin sheath sleeves the ceramic rod insulator body and is overlapped with the fitting accessories, and the external insulation umbrella skin sheath comprises large umbrellas and small umbrellas and is formed according to a sequence that the large umbrella is arranged and then the small umbrella is arranged from top to bottom. The rod-shaped suspension type composite insulator has the advantages that the creep distance and the dry arcing distance are increased, the creep distance is increased by around 50%, the dry arcing distance is increased, the pollution flashover frequency is reduced, and the probability of a flashover accident occurring in the railway is reduced; an integral injection molding production process is used for production, an umbrella sleeve is attractive in appearance and is few in interface, a core rod and the sheath are bonded firmly without a gap, the rod-shaped suspension type composite insulator is high in internal insulation performance, and a phenomenon of interface breakdown is prevented.

The invention relates to a detection system and a method for monitoring fracture development of a coal pillar-free gob-side entry retaining floor. The method comprises the following steps of chiseling a floor drilling field at one side of the coal pillar-free gob-side entry retaining, drilling in a floor rock layer according to different angles, gradually butting transparent hollow pipe sections by a butting sealing system, and sending into each drilling hole; grouting and anchoring a gap between each drilling hole and the corresponding transparent hollow pipe, enabling a detection positioning assembly to record the fracture of the drilling surrounding rock according to different scales of a measuring tape, performing monitoring tasks on evolution of floor mining failure rule for multiple times in different mining phases until the data is stable, and then finishing the observation. The method has the advantages that the floor small-angle drilling hole, the floor medium-angle drilling hole, and the floor large-angle drilling hole extend from the drilling field to the floor of a to-be-mined coal layer and are distributed in parallel in a stereo way; by observing the fracture condition of adjacent drilling holes in the same time and the fracture condition of the same drilling hole in different coal mining phases, the development state of the plastic failure area of the floor and the development state of the failure area of the floor after the coal bed is mined are determined, so as to provide reliable data reference for safety construction.