151results about How to "No penetration" patented technology

The invention provides high-strength and high-corrosion-resistance cast aluminum alloy and a pressure casting preparation method thereof. The alloy is prepared from, by a certain weight percent, Si, Mg, Fe, Mg, Zn, Sr, Cu, M and the balance Al, wherein M is at least one element of Ti, Zr and V, or the element RE is added in M. After the high-strength and high-corrosion-resistance cast aluminum alloy is subjected to pressure casting, the room temperature tensile strength sigma b of alloy not subjected to heat treatment is larger than or equal to 315 MPa, the room temperature ductility sigma of the alloy not subjected to heat treatment is larger than or equal to 3.0%, and good corrosion resistance is achieved; and the alloy can be applied to automobile parts without ageing or solid solution heat treatment, and the requirement for light automobile development is met.

The invention provides high-strength high-corrosion-resistance cast aluminum alloy and a gravity casting manufacturing method of the high-strength high-corrosion-resistance cast aluminum alloy. The alloy is composed of Si, Mg, Fe, Mg, Zn, Sr, Cu, M and the balance Al according to certain weight percentages, wherein the M is at least one of Ti, Zr and V or the RE element is added to the M. The cast aluminum alloy has the excellent cast performance and good mechanical property. The tensile strength, the yield strength and elongation are improved, good corrosion resistance is achieved, the aluminum alloy can be applied to automobile parts without solid solution heat treatment, and the requirement of low-weight development of automobiles is met.

The invention relates to a halogen-free non-cleaning soldering flux for a lead-free solder wire, and belongs to the soldering flux field. According to the weight ratio, the invention comprises the following elements that: 4 to 18 wt percent of organic acid active agent, 10 to 30 wt percent of organic solvent, 1 to 6 wt percent of pasting agent, 0.2 to 3wt percent of stabilizer, 0.5 to 5wt percent of thixotropic agent, 0.5 to 4wt percent of surface active agent, 0.5 to 5wt percent of rust inhibition, and the rest comprises colophony. The invention includes no halogen, the speculummetal has no breakthrough after being welded, the insulation resistance is high, and the soldering performance is good, the problem of the potential solder joint short circuit caused by the soldering flux of the prior welding wire that the colophony content is too high, the smoke is large and the derelict is easy to be flaked away is solved, the invention is smooth and has no absorption of moisture under normal temperature, no cleaning is required after being welded, and the welding requirement of normal product can be met.

The invention discloses a water-based paint remover applied to zipper production and a preparation method thereof, and belongs to the technical field of paint cleaning. The water-based paint remover is characterized by consisting of the following components in parts by mass: 20-30 parts of a main solvent, 25-35 parts of a cosolvent, 10-20 parts of an activating agent, 3-5 parts of an emulsifying agent, 8-10 parts of a penetrating agent, and 20-25 parts of deionized water, wherein the main solvent is one of or a combination of two or more of the solvents including N-methyl-2-pyrrolidone, butylcellosolve, propylene carbonate, dimethyl sulfoxide, benzaldehyde, and methyl methacrylate; the cosolvent is one of or a combination of two or more of the solvents including Y-butyrrolactone, benzyl alcohol, ethanol, and propanetriol; and the activating agent is one of formic acid, acetic acid, oxalic acid and salicylic acid. The water-based paint remover disclosed by the invention can remove paint on a zipper paint spraying pot and a zipper head at a normal temperature, is noncorrosive to equipment, does not pollute the environment and generate wastewater, and can be used repeatedly.

The invention which provides a nylon film material for a polymer lithium ion battery, which aims at providing a nylon of stable thermal property, superior longitudinal and transverse mechanical property, good compatibility of multilayer compositing, synchronous flow and consistent extension, and a manufacturing method of the nylon. The infill of nylon resin comprises enhanced graft POE or EPDM thermal-plastic elastomer and graft copolymer K-MAH, wherein the additive amount of the enhanced graft POE or the EPDM thermalplastic elastomer and the graft copolymer K-MAH at least accounts for 8-12 wt% of the total amount. The infill of nylon resin also comprises Kresin epoxy resin, N-butyl benzsulfamide, silane surface treating agent, silane-treated nano calcium carbonate and glass fiber. The additive amount of the glass fiber accounts for 30-35 wt% of the total amount. The copolymer (EVA) of ethylene-vinyl acetate is also added, wherein the additive amount of the EVA accounts for 10-16 wt% of the total amount. The problems of the excessive extension of BOPA (biaxially oriented polyamide) in the molding process, and layering, and bubbles appearing at the corners and folded edges in heat-sealing layer contraction when the contraction force is greater than the bonding intensity between a BOPA layer and a Al layer can be mainly solved.

The invention discloses a halogen-free flame-retardant POE (Polyolefin Elastomer) compound material and a preparation method thereof. The halogen-free flame-retardant POE compound material is prepared from the following components in parts by weight: 100 parts of POE resin, 70-140 parts of halogen-free compound retardant, 5-30 parts of modifier, 3-10 parts of lubricating dispersing agent and 0.1-0.6 parts of anti-oxidant. The preparation method comprises the following steps of: putting the POE resin, the halogen-free retardant, the modifying agent, the lubricating dispersing agent and the anti-oxidant into a high-speed mixing machine for mixing till the materials are heated to 65-75 DEG C through frication heat generated by mixing, discharging and cooling; and feeding a cooled mixed material into a double-screw extruder for melting and extruding, cooling an extruded bar stock with a water groove, and drawing into a granulating machine for granulating to obtain the halogen-free frame-retardant POE compound material. The elongation rate of the halogen-free flame-retardant POE compound material is over 600 percent, the oxygen index is over 30 percent, the liquidity of a melt is high, and the heat ageing resistance is high.

The invention relates to an improved flexible cloth collision processing method which is characterized by establishing a quad bounding box tree according to the spatial relation for the triangular meshes of the cloth, and using an AABB bounding box; at a rough detection stage, by combining the quad bounding box tree, eliminating the regions which impossibly intersect with each other further by an improved continuous vector cone method than by a conventional method; at an accurate detection stage, implementing a set of reasonable primitive detection strategy on the primitives which possibly intersect with each other within a step length, and adding penetration detection and processing in the detection process for improving the accuracy as far as possible and ensuring no penetration; and on the collision response mode, processing by an impulse compensation model and a contact surface mechanical model. The method comprises the following steps: (1) establishing a quad bounding box tree according to the spatial relation for the triangular meshes of the cloth; (2) by combining the quad bounding box tree, eliminating the regions which impossibly intersect with each other by an improved continuous vector cone method; (3) implementing a primitive detection strategy on the primitive pairs which possibly intersect with each other in a step length, and adding penetration detection and processing in the detection strategy; and (4) for the detected collision pairs, computing the collision response by adopting a combined mode of an impulse compensation model and a contact surface mechanical model.

The invention provides a heat-resisting cast aluminum alloy with high elongation and a pressure casting preparation method thereof. The alloy comprises, by weight percent, 9.0%-12.0% of Si, 0.05-0.4%of Cu, 0.02-0.05% of Mg, 0.05-0.1% of Sc, 0.3-0.5% of M, and the balance Al and inevitable impurities, wherein M is at least one element of Ti, Zr and V. After pressure casting is conducted on the heat-resisting cast aluminum alloy with high elongation, the yield strength of the pressure casting alloy reaches 169MPa at the room temperature, the elongation reaches 10.0%, the extension strength reaches 190MPa at the high temperature of 200 DEG C, the high temperature elongation reaches 14.0%, the room temperature and heat-resisting performance are excellent, the alloy can be applied to automobile parts without solid solution heat treatment, and the need of automobile lightweight development is met.

The invention discloses a casting technology of a wear-resistant and low-porosity steel casting. The casting technology takes silica sand, bentonite, an additive and water as molding materials, and comprises the steps of preparing a casting mould by mixing the molding materials; drying the prepared casting mould with hot air at the temperature of 130-140 DEG C; injecting the dissolved metallic solution into the casting mould, and pouring a semi-finished product; carrying out heat treatment on the semi-finished product, polishing and machining to obtain the finished product; checking and putting into a storage. After the casting technology is adopted, the wear resistance and the toughness of the casting are greatly improved, the pores in the casting are reduced, and the service life of the casting is prolonged; furthermore, the casting technology is simple in operation and low in cost.

The invention discloses a production method and a device for a colored filter. The production method is as follows: four heat transfer films with color layers are respectively obtained; one heat transfer film is adhered on the surface of a substrate of a colored filter, a rectangular laser beam is adopted to instantaneously irradiate the corresponding position of the heat transfer film according to the arrangement positions of picture elements, so that the color layer of the heat transfer film is transferred onto the surface of the substrate, the irradiation positions are adjusted, and the steps are repeated to realize the transfer of all the picture element units with the same color; the heat transfer film is replaced, the steps are repeated so that the four colors are transferred, thereby obtaining the needed colored filter. During the whole process of the invention, the relative position of the substrate does not change, which solves the problem that the prior method needs a high-precision contraposition, and can control the size of picture element patterns through the size of light spots of the laser; at the same time, the method is applicable to the production of flexible colored filters.

The invention provides a high-elongation-rate heat-resistant aluminum alloy suitable for gravity casting and a preparation method thereof. The alloy comprises the following elements of, by weight, 9.0-12.0% of Si, 0.05-0.4% of Cu, 0.02-0.05% of Mg, 0.05-0.1% of Sc, 0.6-0.8% of M and and the balance Al and inevitable Fe impurities, wherein the M comprises at least two elements of Ti, Zr and V. After gravity casting of the high-elongation-rate heat-resistant aluminum alloy suitable for gravity casting, room-temperature yield strength of the as-cast alloy can reach 143-152MPa, the elongation ratecan reach 8.0%-12.0%, high-temperature tensile strength at 200 DEG C can reach 158-170MPa, the high-temperature elongation rate can reach 10.0%-20.0%, the room-temperature yield strength and heat resistance are excellent, the alloy can be applied to automobile parts without solid solution heat treatment, so that the requirements of light-weight development of automobiles can be met.

The invention relates to the technical field of papermaking, in particular to a method for making a low basis weight manila board from wood fiber. The method comprises the steps of: A. dissolution, i.e. dispersing wood fiber and conducting dissolution treatment to obtain a wood fiber slurry; B. beating, i.e. conducting beating treatment on the wood fiber slurry subjected to dissolution treatment; C. coarse screening, i.e. conducting coarse screening treatment on the wood fiber slurry subjected to beating treatment; D. purification, i.e. mixing the wood fiber slurry subjected to coarse screening treatment with an MW slurry, then carrying out fine screening, slag removal, concentration and heat dispersion treatment, thus obtaining a core layer slurry for making coated white board paper; E. papermaking, i.e. processing a surface layer slurry, a lining slurry, a bottom slurry and the core layer slurry prepared by step D to obtain the low basis weight manila board. The method provided by the invention can effectively improve the bulkness of finished paper, reduces the paper basis weight exceeding problem, at the same time avoids the penetration point problem of thick and large wood fiber in finished paper, and greatly reduces the production cost.

The invention discloses a bowlder-imitated artificial stone plate and a manufacturing method thereof. The artificial stone plate comprises the following components in percentage by mass: 28-30% of unsaturated polyester resin, 40-65% of aluminum hydroxide, 5-30% of shells crushed into objects with diameters of 1-5 cm, 0.02-0.04% of cobalt naphthenate, 0.03-0.05% of methyl ethyl ketone peroxide and 1-2% of pigment paste. The bowlder-imitated artificial stone plate disclosed by the invention has the advantages that: the bowlder-imitated artificial stone plate is environmental-friendly, non-toxic and non-radiative; products are diversiform in color, bright in color and translucent; and the bowlder-imitated artificial stone plate can be produced according to various needs of customers, so that the stone plate is agile and changeable and convenient to decorate and collocate, thereby creating colorful life spaces. Compared with ceramic tiles, the product is light in weight and can be arbitrarily cut and processed; and the bowlder-imitated artificial stone plate has various thicknesses, so that the applicable range of the stone plate is wider than that of ceramic tiles in decoration. The production method disclosed by the invention is simple in process and safe and convenient in production, and a produced artificial stone plate has a smooth and non-porous surface, and a situation that dirt infiltrates into the plate does not occur in the process of application, so that the application of the artificial stone plate is cleaner and more sanitary.

The invention relates to a coupling agent modified silicon dioxide doped cycloaliphatic epoxy resin LED packaging adhesive. The adhesive is characterized in that: it is composed of component A and component B that are mixed in a ratio of 1: (0.9-1) for construction. Specifically, the component A consists of cycloaliphatic epoxy resin, an active diluent, a transparent blue-violet purple dye color paste, a defoaming agent and a softening agent. The component B consists of a curing agent, an accelerator, a silane coupling agent modified nano-ultraviolet absorbent, polyol and an antioxidant. The nano-silicon dioxide doped cycloaliphatic epoxy resin LED packaging adhesive provided in the invention has the advantages of good ageing resistance, strong binding power, fast curing, low viscosity and moisture absorption, so that employment of organosilicone with a high cost can be avoided. Meanwhile, the defects of high moisture absorption, poor ultraviolet resistance and low shortwave transmittance and the like of existing bisphenol A type epoxy resin can be overcome. The LED packaging adhesive provided in the invention is more suitable to be used as a high-end LED packaging adhesive, a high power LED packaging adhesive or an ultraviolet light-based white light and blue light LED packaging adhesive.

The invention discloses a roof greening method by using callisia repens, in particular to a growing method for planting callisia repens on roof. The procedures of the method are as follows: first, a water-resistant system, a drainage system and a root resistant layer are arranged on the roof and a matrix layer is paved on the roof; second, grass seeds of the callisia repens is planted on the matrix layer by using any one method of offshoots, broadcasting sowing method, cottage or greensward transplanting and paving method; third, root fixing water is watered and N fertilizer is fertilized once every fifteen days, and lawn is formed within one to two months. As an effective measure for solving the influence of urban development on the entironment and raising the urban afforestation rate, the invention uses the callisia repens on the roof greening, which has a resultful effect on the heat resistance, virescence and disaster prevention of room surface.

The invention relates to a receiving element (4) for mounting pouch cells, has a base body. The receiving element comprises a base body (5). With respect to an object of receiving the pouch cells securely and cost-effectively in a frame or housing, the receiving element is characterized in that the base body (5) is formed as a profile having a contact surface (5a) for contact against a sealing seam (2) of a pouch cell.

The invention discloses a solvent-free polyurethane dispersoid with particle size controllable and a waterborne polyurethane coating liquid, and particularly relates to the technical field of dispersoids and coating liquids; the average particle size of the solvent-free polyurethane dispersoid is 400-1500 [mu]m, and the solid content of the solvent-free polyurethane dispersoid is 10%-45%; the solvent-free polyurethane dispersoid can be made into the waterborne polyurethane coating liquid with the solid content of 9%-25%, and the waterborne polyurethane coating liquid is composed of the raw materials in parts by weight: 100 parts of the solvent-free polyurethane dispersoid, 0.1-3 parts of a thickening agent, 0.1-4 parts of a wetting agent, 0.1-5 parts of a defoaming agent and the balance being water. The invention aims to control the particle size of the waterborne polyurethane dispersoid particles, so that the waterborne polyurethane dispersoid is only coated on the outer surface of gloves and does not permeate into a glove fabric, and the gloves have good flexibility. The waterborne polyurethane coating liquid provided by the invention can ensure smooth film formation, is environment-friendly, and is non-toxic even after long-term use.

The invention discloses an artificial stone plate and a manufacture method of the artificial stone plate. A recipe of the artificial stone plate consists of the following ingredients in percentage by mass: 28 percent to 30 percent of unsaturated polyester resin, 40 percent to 65 percent of aluminium hydroxide, 5 to 30 percent of shells crushed into shells with the grain diameter being 1 to 5cm, 0.02 percent to 0.04 percent of cobalt naphthenate, 0.03 percent to 0.05 percent of methyl ethyl ketone peroxide and 1 percent to 2 percent of pigment paste. The artificial stone plate and the manufacture method have the advantages that 1, the shell plate has the effects that the environment is protected, and the toxicity and the radiation are avoided; 2, the artificial plate has uniform density from the inside to the outside and is solid and integral, the surface is smooth, no fine hole exists, the germ propagation is effectively avoided, and the cleaning is easy; 3, the color is gorgeous, the free matching of the color of the shell plate can be realized, and the effect is incomparable with the single performance of the natural rock; 4, the shell plate can be processed in a seamless split joint manner, and the shell plate can be easily bent to be made into various shapes; and 5, the invention also provides the manufacture method of the artificial stone, which has the advantages that the process is simple, and the manufacture is safe and convenient.

The invention discloses a impermeable, sustainable and safe multi-layer pipeline which is used for transporting gaseous fuel for stove equipped with a combustor and other appliance, such as liquefied petroleum gas (LPG), natural gas (NG) and hydrogen-methane mixture fuel. The thermoplastic layered pipeline comprises an innermost layer, a middle layer and an outer layer, at least one of which comprises polyester and polyethylene terephthalate to fully prevent penetration. The polyester is used as performance [blocking] layer. The performance PET layer is preferably constructed as snake-shaped / corrugated cylindrical structure. The other inner layer, the middle layer and the outer layer of the gaseous fuel pipeline are thermoplastic polymer in various combination forms, and have better structure or bonding layer. The performance blocking layer can also be composed of single-layer or combined copolyester, EVOH or nylon, so as to reduce the penetration to the minimum which can be neglected, but not zero realized by using PET. The pipeline of the invention, known as 'SST', provides pollution (penetration) pipelines used at present, and reduces discharge of the greenhouse gas, therefore the problem that non-polluting alternatives for global warming exist for a long term is solved.

The invention discloses a process for casting seal rainproof complex flanges. The complex flanges comprise first flanges and second flanges. Each first flange and the corresponding second flange are butted to each other in the left-right direction, each first flange comprises a first flange body and a protective cover, at least four first fixing holes are uniformly formed in each first flange body, at least four oil filler holes are further uniformly formed in each first flange body, first lugs are further respectively uniformly arranged on the surface of each first flange body, and first grooves are further respectively uniformly formed in the surface of each first flange body; each second flange comprises a second flange body, at least four second fixing holes are uniformly formed in each second flange body, second lugs are further respectively uniformly arranged on each second flange body, and second grooves are further respectively uniformly formed in each second flange body. The process has the advantages that the process is simple and feasible, the seal rainproof complex flanges cast by the aid of the process are low in casting cost, simple in structure, high in connectivity and good in sealing performance, lubrication can be facilitated when the seal rainproof complex flanges are used, rainproof effects can be realized, the service lives of the seal rainproof complex flanges can be prolonged, and the cost can be reduced.

The invention discloses an urban rainwater pipeline system capable of effectively supplementing underground water. The urban rainwater pipeline system includes a plurality of rainwater openings, filtering screens, rainwater connecting pipes and manholes which are quantitatively corresponding to the rainwater openings respectively, municipal rainwater pipes and filtering layers; each rainwater opening is provided with a first channel which is communicated with two ends of the rainwater opening; and each rainwater connecting pipe is provided with a second channel which is communicated with two ends of the rainwater connecting pipe; each municipal rainwater is provided with a third channel which is communicated with two ends of the municipal rainwater; the manholes are provided with cavities; the rainwater openings are connected with the rainwater connecting pipes; the first channels and the second channels are connected together so as to form channels which are communicated with the rainwater openings and the rainwater connecting pipes; the rainwater connecting pipes are connected with the manholes; the second channels are communicated with the cavities of the manholes; the manholes are connected with the municipal rainwater pipes; the cavities of the manholes are communicated with the third channels of the municipal rainwater pipes; the municipal rainwater pipes are provided with water seepage holes which are communicated with the interiors and the exteriors of the pipe walls of the municipal rainwater pipes; the exteriors of the municipal rainwater pipes are provided with the filtering layers; the filtering layers completely cover the water seepage holes; and the filtering screens are arranged at end portions of the rainwater connecting pipes, wherein the end portions of the rainwater connecting pipes are adjacent to the rainwater openings.

The invention relates to a modified nano zinc oxide doped cycloaliphatic epoxy resin light-emitting diode (LED) packaging adhesive. The modified nano zinc oxide doped cycloaliphatic epoxy resin LED packaging adhesive is characterized by being composed of a component A and a component B, the component A and the component B are mixed according to the ratio of 1: (0.9-1.0), and then the packaging adhesive is used for construction. The component A is composed of a cycloaliphatic epoxy resin, a reactive diluent, transparent royal purple dye color paste, an antifoaming agent and a softening agent, and the component B is composed of a curing agent, an accelerating agent, a silane coupling agent modified nano ultraviolet absorption agent, polyatomic alcohol and an antioxidant. The modified nano zinc oxide doped cycloaliphatic epoxy resin LED packaging adhesive is high in transparency, good in ultraviolet aging resistance performance, high in adhesive power, rapid in solidification and low in viscosity; and according to the packaging adhesive, high-cost organosilicone isn't used, defects that existing bisphenol A epoxy resins are high in moisture absorption, poor in ultraviolet resistance performance and low in short-wave transmissivity are overcome, and the modified nano zinc oxide doped cycloaliphatic epoxy resin LED packaging adhesive can be used as a high-end LED packaging adhesive, a high-power LED packaging adhesive or an LED packaging adhesive based on white light and blue light of ultraviolet light.

The invention relates to novel modified nanometer titanium dioxide doping alicyclic epoxy resin LED (light emitting diode) encapsulation glue, which is characterized in that the encapsulation glue consists of ingredients A and ingredients B, and the ingredients A and the ingredients B are used for construction after being mixed according to a proportion being 1:(0.9-1.0), wherein the ingredients A consist of alicyclic epoxy resin, reactive diluents, transparent blue purple dye color paste, defoaming agents and softness increase agents, and the ingredients B consist of curing agents, accelerants, silane coupling agent modified nanometer ultraviolet absorption agents, polyalcohol and antioxidants. The nanometer titanium dioxide doping alicyclic epoxy resin LED glue with good ultraviolet ageing resistance performance, high bonding force, fast curing and low viscosity and moisture absorption is provided, the adoption of high-cost organic silicon is avoided, meanwhile, the defects of high moisture absorption, poor ultraviolet resistance, low shortwave transmittance and the like of the existing bisphenol A type epoxy resin are overcome, and the LED encapsulation glue is more suitable for being used as high-grade LED encapsulation glue, high-power LED encapsulation glue or LED encapsulation glue based on white light and blue light of ultraviolet light.

The invention discloses a medical digital ink-jet printing paper. The medical digital ink-jet printing paper comprises a printing base paper of which both surfaces are coated with sprayed films. The surfaces of the printing base paper are coated with coatings. The printing base paper comprises a raw paper as an interlayer and the polyethylene sprayed films coated on the surfaces of the raw paper. The polyethylene sprayed film comprises, by weight, polyethylene, dicumyl peroxide and TiO2. The coating comprises, by weight, nanoscale SiO2, nanoscale TiO2, nanoscale Al2O3, PVA, polyacrylate, a stabilizer and mercaptobenzimidazole. The medical digital ink-jet printing paper has the advantages that in production, environmental pollution is small; in use, ink-jet printing does not produce harmful gas such as ozone; and the medical digital ink-jet printing paper can be naturally degraded and can produce small environmental pollution.

The invention provides light-colored melanin sunscreen cream and a preparation method thereof. The sunscreen cream is a cross-linked product of a polydopamine oligomer and a hydrophilic polymer with sulfydryl, amino or boric acid; the polydopamine oligomer has a molecular weight of 2k-8k, and the hydrophilic polymer with sulfydryl, amine or boric acid is a multi-arm boric acid PEG or a multi-arm sulfydryl PEG. The gelation pH value of the sunscreen cream is 7-9, the gelatinization temperature is room temperature, and the gelation time is 5s-300s. The preparation method comprises the following steps: step 1, carrying out oxidative self-polymerization of dopamine hydrochloride in alkaline and air; step 2, separating an intermediate oligomer by means of dialysis; and step 3, mixing and cross-linking the oligomer obtained in the step 2 with the hydrophilic polymer with sulfydryl, amino or boric acid to obtain the sunscreen cream. The light-colored melanin sunscreen cream provided by the invention has ultraviolet absorption and low visible light absorption functions, has good skin retention ability, can be mechanically erased by towel, has good biological stability, has no skin penetration, and has good free radical scavenging ability.

The invention provides a durable concrete colored tile and a preparation method thereof. The durable concrete colored tile comprises the following raw materials in parts by mass: 40 to 80 parts of cement, 20 to 60 parts of modified fly ash, 10 to 30 parts of modified calcium carbonate, 20 to 60 parts of fine sand, 10 to 40 parts of stone chips, 18 to 55 parts of water, 4 to 16 parts of a polymer emulsion, 1 to 6 parts of fiber, 0.1 to 1 part of a water reducing agent, 1 to 5 parts of color tile paint and 1 to 5 parts of a sealant. The durable concrete colored tile provided by the invention hasgood mechanical properties and impermeability, has high bearing capacity after freezing, does not generate color-fading and color-losing phenomenons in 5 years, and is free of cracks on a coating.

A moisture-proof cupboard features that its main body is made of the basic plates which may be metallic plates, plastic plates, and concrete slabs, and the artificial marble plates are attached to the visual surfaces of main body for making it more beautiful.

The invention discloses a general all-weather source-free safe caution lamp with an equipotential electric transmission and distributing line. The left side of a lamp body is connected with a left electric transmission wire hook and the right side of the lamp body is connected with a right electric transmission wire hook. The left electric transmission hook and the right electric transmission hook are respectively in a form that a forward opening is connected with the electric transmission and distribution line in a hung mode and a backward opening is connected with the electric transmission and distribution line. A locking mechanism which can be adjustable vertically and fixes each hook with the electric transmission and distributing line is arranged below each hook opening. The lamp body comprises a lamp tube. A solar panel is installed on the lamp tube and is connected with a storage battery through a circuit. The solar panel and the storage battery are connected with a light-emitting diode (LED) lamp bead through a circuit. The general all-weather source-free safe caution lamp with the equipotential electric transmission and distributing line is reasonable in structure. Under the conditions that illumination intensity is weakened at dusk and night falls, alarming flashing light can be emitted so that various travelling vehicles under the electric transmission line spanning a road are reminded or cautioned to keep off the electric transmission line. The general all-weather source-free safe caution lamp with the equipotential electric transmission and distributing line is mainly used for external force prevention of the electric transmission line of an electric system.

The invention relates to an ultraviolet-resistant nano titanium dioxide doped cycloaliphatic epoxy resin LED (light emitting diode) packaging glue which is characterized by comprising a component A and a component B, wherein the components A and B are mixed according to the proportion of 1: (0.9-1.0) and then used for construction; the component A comprises cycloaliphatic epoxy resin, a reactive diluent, a transparent bluish violet dye color paste, a defoaming agent and a flexibility agent; and the component B comprises a curing agent, an accelerating agent, a nano ultraviolet absorbing agent, polylol and an antioxidant. The ultraviolet-resistant nano titanium dioxide doped cycloaliphatic epoxy resin LED packaging glue has the characteristics of high transparency, good ultraviolet ageing resistance, strong binding power and low moisture absorption, avoids adopting organic silicon with high cost, overcomes the defects of high moisture absorption, poor ultraviolet resistance, low short wave transmissivity and the like of the traditional bisphenol A epoxy resin, and is more suitable for being used as an ultraviolet-based white light and blue light LED packaging glue. The ultraviolet-resistant nano titanium dioxide doped cycloaliphatic epoxy resin LED packaging glue has the advantages of good performance, low cost and simple process, and is suitable for industrial massive production.