40results about How to "Not easy to cause corrosion" patented technology

The invention relates to a niobium-containing compound catalyst for efficiently converting carbohydrates into 5-hydroxymethyl furfural, which has high activity and selectivity for preparing hydroxymethyl furfural (HMF) by dehydrolyzing saccharides and is an ideal catalyst for preparing HMF. When the reaction is performed under moderate conditions, the target product HMF can have a high yield. The catalyst is environment-friendly, is easy to separate and recycle, can be reused, is convenient and practical to operate, and can not corrode the equipment, thereby being an ideal solid acid catalyst for preparing HMF, and having significant industrial application meanings.

The invention provides a metal surface modification method through emulsion jet, belonging to the processing technology of metal material surface. The metal surface modification method mainly comprises the following steps: preparing an emulsion which can produce effective cavitation bubbles and jet effect; immersing a component to be processed in the emulsion; adjusting a jet nozzle, a jet pressure and a distance between the jet nozzle and the processed metal; carrying out jet processing on the metal surface in the emulsion medium; taking the emulsion as a medium for producing cavitation jet; and forming the metal surface modification method through emulsion jet, thus improving fatigue strength of a test piece by 56% and 11% respectively. The metal surface modification method through emulsion jet of the invention has the advantages of generating the effective cavitation bubbles and improving processing efficiency of the metal surface, generating no corrosion for the metal surface, polluting no environment, having low cost, being not easy to damage the metal surface, having low investment cost and use cost, good use effects and being easy to be promoted and applied; in addition, residual emulsion does not corrode the metal surface.

The invention discloses a method for preparing 5-hydroxymethylfurfural by hydrothermally decomposing wood fibers, which comprises the following steps: drying and pulverizing wood fibers to 40-120 meshes, soaking with water, treating with an ultrasonic apparatus for 5-20 minutes, mixing with a catalyst and a solvent, and stirring to carry out hydrolysis reaction at 170-250 DEG C for 30-150 minutes; after the reaction finishes, cooling and filtering; extracting the water phase with an organic solvent, merging the extraction liquid and the organic phase, and removing the solvent to obtain the 5-hydroxymethylfurfural. The invention has the advantages of cheap and accessible raw material and abundant sources, can solve the problem of raw material sources of 5-hydroxymethylfurfural, relieves the environmental pollution from stacked waste wood fibers, and enhances the wood fiber hydrolysis efficiency by using ultrasonic processing.

The invention discloses an absorptive heat exchanger unit which comprises a hot water type absorptive heat pump unit, a water-water heat exchanger and a primary side pipeline and a secondary side pipeline. The primary side pipeline sequentially passes a generator of the heat pump unit and the water-water heat exchanger from water supply to water return. The heat exchanger unit further comprises a heat supply network heater, and the primary side pipeline has to pass the heat supply network heater before entering the generator. Compared with the prior art, the absorptive heat exchanger unit has the advantages that the heat supply network heater can heat the primary side pipeline before the primary side pipeline enters the heat exchanger pump unit, heat compensation is realized, water supply temperature of the primary side pipeline can be further increased, temperature difference between supply and return of primary-side hot water is increased, and initial investment and operation cost of the absorptive heat exchanger unit can be reduced.

The invention belongs to the field of metal surface treatment, and relates to a treatment method for corrosion resistance of metal surfaces. The treatment method comprises the following steps of (1) performing polishing; (2) performing alkaline degreasing; (3) performing cleaning; (4) performing drying; (5) performing activation; and (6) performing inactivation. According to the method disclosed by the invention, an inactivation film which is high in binding force, good in corrosion resistance, good in color uniformity and good in glossiness is generated on the metal surfaces through a chemical reaction, so that the effect of corrosion resistance for metal is achieved, and further the use deadline of the metal is prolonged.

The invention provides a high-speed wire rod stacking steel detection method, which utilizes double proximity switches for stacking steel detection. The design cost is low, the signal is more stable, and unnecessary failures caused by false signals are avoided. Because it is installed on the top, the weight, sleeve and access opening are not easy to cause corrosion, which ensures the long-term stability of the set of devices, and is economical and practical.

The invention discloses a polymer-modified soybean-based plate adhesive. The polymer-modified soybean-based plate adhesive is prepared from, by weight, 0.8-2 parts of polyurethane, 1-2 parts of dodecenylsuccinic acid, 0.4-1 part of oleic diethanolamide, 2-4 parts of polyvinyl alcohol, 170-200 parts of defatted soybean powder, 0.3-0.4 part of ferric chloride, 0.1-0.2 part of ferrous chloride, 0.8-1 part of epoxy chloropropane, 2-3 parts of N-hydroxymethyl acrylamide, 16-20 parts of styrene, 0.1-0.2 part of potassium persulfate, 3-4 parts of hemicellulase, 10-19 parts of poly diphenyl methane diisocyanate, 60-70 parts of 20-30% hydrochloric acid solution, 0.3-1 part of resorcinol, 2-4 parts of neutral dinonyl-naphthalenesulfonic aci barium salt, 2-3 parts of pectin and the like. The polymer-modified soybean-based plate adhesive has the advantages of being not likely to cause equipment corrosion, long in shelf life, free of formaldehyde, low in residual monomer content, environmentally friendly, good in water resistance and the like.

The application of the present invention discloses a tile pointing device, which includes a caulking gun, a positioning device and a flattening device. The positioning device is a pair of positioning plates. The positioning plates include a backing plate and a connecting plate connected to the end of the backing plate. The backing plate It is perpendicular to the connecting plate, the height of the backing plate is not more than 2mm, and the thickness of the backing plate is not more than 0.5 mm; The material port, the exhaust port and the vacuum pump, the discharge nozzle of the caulking gun is fixed in the material inlet, the exhaust port is provided with an exhaust one-way valve, and the exhaust nozzle of the vacuum pump is connected with the exhaust one-way valve. The invention can fit the shape of the tile joints for jointing, can discharge the air bubbles in the jointing agent, and can make the jointing agent fully contact with the edges of the tiles, so as to ensure the quality of the tile joints and enhance the ceramic tile joints. It is not easy to cause corrosion of masonry block materials and water leakage of building walls or floors.

The invention discloses a soybean-based bone glue plate adhesive, which is composed of the following raw materials in parts by weight: calcium lactobionate 1-2, coconut acid diethanolamide 0.7-1, bone glue 6-8, naphthene Acid soap 0.6‑1, diphenylsilanediol 3‑4, zinc dibutyldithiocarbamate 1‑2, polyvinyl alcohol 2‑4, defatted soybean flour 170‑200, ferric chloride 0.3‑0.4, Ferrous Chloride 0.1‑0.2, Epichlorohydrin 0.8‑1, N‑Methylol Acrylamide 2‑3, Styrene 16‑20, Potassium Persulfate 0.1‑0.2, Hemicellulase 3‑4, Polymerase Phenylmethane diisocyanate 10-19, 20-30% hydrochloric acid solution 60-70, isothiazolinone 0.1-0.2, trinonylphenyl phosphite 0.8-1. The invention has the characteristics of not easy to cause equipment corrosion, long storage period, no formaldehyde, low residual monomer content, good water resistance and the like.

The invention discloses a sound insulating soybean-based plate adhesive. The sound insulating soybean-based plate adhesive is prepared from, by weight, 0.7-2 parts of 2-benzimidazol-y-yl disulphide, 0.1-0.2 part of dibutyl phthalate, 2-4 parts of polyvinyl alcohol, 170-200 parts of degreased soybean meal, 0.3-0.4 part of ferric chloride, 0.1-0.2 part of ferrous chloride, 0.8-1 part of epoxy chloropropane, 2-3 parts of N-hydroxymethyl acrylamide, 16-20 parts of styrene, 0.1-0.2 part of potassium persulfate, 3-4 parts of hemicellulase, 10-19 parts of poly(diphenyl methane diisocyanate), 60-70 parts of 20-30% hydrochloric acid solution, 3-4 parts of scolecite powder, 0.8-1 part of sodium alkyl benzene sulfonate, 0.4-1 part of trimethylolpropane, 1-2 part of carbon nano tubes and 0.8-1 part of hexamethylphosphoramide. The sound insulating soybean-based plate adhesive has the advantages of being not prone to cause equipment corrosion, long in working life and deposit term, free of formaldehyde, low in residual monomer content, good in water tolerance and the like.

The invention discloses a fireproof soybean-based plate adhesive. The fireproof soybean-based plate adhesive is prepared from, by weight, 3-4 parts of zinc hydroxystannate, 2-4 parts of polyvinyl alcohol, 170-200 parts of defatted soybean powder, 0.3-0.4 part of ferric chloride, 0.1-0.2 part of ferrous chloride, 0.8-1 part of epoxy chloropropane, 2-3 parts of N-hydroxymethyl acrylamide, 16-20 parts of styrene, 0.1-0.2 part of potassium persulfate, 3-4 parts of hemicellulase, 10-19 parts of poly diphenylmethane 4,4'-diisocyanate, 60-70 parts of a hydrochloric acid solution with the concentration of 20-30%, 1-2 parts of deca-brominated diphenyl ether, 0.6-1 part of polyphthalamide, 2-3 parts of diacetone alcohol, 0.7-1 part of triethanolamine borate and the like. The styrene copolymerization modified soybean-based adhesive has the advantages of being not likely to cause corrosion of equipment, long in shelf and storage period, free of formaldehyde, low in content of residual monomers, high in environment friendliness and water resistance and the like.

The invention discloses quick-drying plant protein board adhesive. The quick-drying plant protein board adhesive comprises the following raw materials in parts by weight: 0.4-1 part of zinc hydroxystannate, 0.5-1 part of oleic diethanolamide, 1-2 parts of inositol hexaphosphate, 0.4-1 part of polyglycerol fatty acid ester, 1-2 parts of citric acid, 2-4 parts of polyvinyl alcohol, 170-200 parts of defatted soybean powder, 0.3-0.4 part of ferric chloride, 0.1-0.2 part of ferrous chloride, 0.8-1 part of epoxy chloropropane, 2-3 parts of N-hydroxymethyl acrylamide, 16-20 parts of phenylethylene, 0.1-0.2 part of potassium peroxodisulfate, 3-4 parts of hemicellulase, 10-19 parts of polydiphenyl methane diisocyanate, 60-70 parts of a hydrochloric solution with the concentration of 20-30%, 2-3 parts of tetrabutyl titanate, 0.6-1 part of saturated octadecanoylamide, 1-2 parts of cellulose propionate and the like. The quick-drying plant protein board adhesive has the characteristics of being unlikely to cause equipment corrosion, relatively long in pot and storage life, free of formaldehyde, low in residual monomer content, good in water resistance and the like.

The invention relates to a negative-pressure fuel coal coupled biomass gasification power generation system and an electrical energy conversion method. Existing fuel coal coupled biomass gasificationpower generation system has the problems that a feeding system is unstable and often causes blocking and fuel gas backflow, large-area slag build-up often happens in the gasifier hearth and causes shutdown, the measures for controlling tar precipitation in gas are insufficient and consequently the tar stains the inner wall and the heated surface of a conveying pipeline and the heat exchange is influenced. The negative-pressure fuel coal coupled biomass gasification power generation system comprises: a feeding device (1), wherein the feeding device is connected with a gasifier system (2) through a pipeline; the gasifier system is connected with an ash treatment device (3) through a pipeline; the ash treatment device is connected with a gas cooling device (4) through a pipeline; the gas cooling device is connected with a gas conveying device (5) through a pipeline; the gas conveying device is connected with a gas burning device (6) through a pipeline; the gas burning device is connectedwith a fuel coal boiler (7). The invention is applied to a negative-pressure fuel coal coupled biomass gasification power generation system.

The invention relates to a positive-pressure coal firing/biomass gasification coupled power generation system as well as a method for electric energy conversion. At present, a coal firing/biomass gasification coupled power generation system has the problems that a feeding system is instable and is liable to cause accidents such as blocking and flue gas returning, a hearth of a gasifier is liable to cause large-scope slag forming, which causes shutdown of the furnace, measures for controlling tar separation in flue gas is insufficient, which causes bad influence on heat exchange due to contamination of the inner wall and heated surfaces of a transporting pipeline due to the tar. The system includes a feeding apparatus (1) which is connected to a gasifier system (2) through a pipeline; the gasifier system is respectively connected to an ash treatment device (3) and a fuel gas cooling device (4) through pipelines; the ash treatment device and the fuel gas cooling device are connected through a pipeline; the fuel gas cooling device is connected to a fuel gas transporting device (5); the fuel gas transporting device is connected to a fuel gas firing device (6) through a pipeline; and the fuel gas firing device is connected to a coal-fired boiler (7). The method is used for the positive-pressure coal firing/biomass gasification coupled power generation system.

The invention discloses a rubber-powder-containing soybean-base board adhesive which is prepared from the following raw materials in parts by weight: 0.1-0.3 part of hexamethylcyclotrisiloxane, 1-2 parts of waste rubber powder, 2-4 parts of polyvinyl alcohol, 170-200 parts of defatted soybean flour, 0.3-0.4 part of ferric chloride, 0.1-0.2 part of ferrous chloride, 0.8-1 part of epoxy chloropropane, 2-3 parts of N-hydroxymethyl acrylamide, 16-20 parts of styrene, 0.1-0.2 part of potassium persulfate, 3-4 parts of hemicellulase, 10-19 parts of polydiphenylmethane diisocyanate, 60-70 parts of 20-30% hydrochloric acid solution, 2-3 parts of aluminum tripolyphosphate, 0.1-0.2 part of phytate, 1-2 parts of saturated octadecacarbamide, 2-3 parts of phosphorus tetrahydroxymethylsulfate, 0.3-1 part of octyl isothiazolinone and the like. The rubber-powder-containing soybean-base board adhesive can not easily cause equipment corrosion, and has the characteristics of long shelf life and storage period, no formaldehyde, low residual monomer content, favorable water resistance and the like.

The invention provides a machinery component which comprises a magnesium alloy first component, a metal second component connected with the magnesium alloy component at the clearance and an electrolyze insulation filler which is injected between the first component and the second component. The invention also provides a machinery and a method for installing the machinery component.

The invention discloses a damp-heat-resistant soybean-based board adhesive. The adhesive is prepared from, by weight, 2-3 parts of polymaleic anhydride, 2-4 parts of polyvinyl alcohol, 170-200 parts of defatted soybean powder, 0.3-0.4 part of ferric chloride, 0.1-0.2 part of ferrous chloride, 0.8-1 part of epoxy chloropropane, 2-3 parts of N-hydroxymethyl acrylamide, 16-20 parts of styrene, 0.1-0.2 part of potassium persulfate, 3-4 parts of hemicellulase, 10-19 parts of 4,4'-diphenylmethane diisocyanate, 60-70 parts of 20-30% hydrochloric acid solution, 0.6-1 part of ammonium alcohol ether sulphate, 2-4 parts of palm wax, 0.6-1 part of 2,2-dimethylolpropionic acid, 0.01-0.02 part of stannous octoate, 0.01-0.02 part of divinyl benzene, 4-6 parts of zirconium oxychloride octahydrate and the like. The adhesive has the advantages that equipment is not likely to be corroded, pot-life storage life is long, the adhesive is free of formaldehyde, the residual monomer content is low, and water resistance is good.

Provided are a cable with a terminal formed therein and a wire harness, in which a high anti-corrosion performance is easily achieved even when the thickness of a resin material constituting a resin covering part covering an electric connection part between a terminal fitting and a cable conductor is made small. The cable 1 with the terminal formed therein is characterized by electrically connecting a terminal fitting (5) and an electric wire (2) which covers the outer periphery of the conductor with the insulating coating layer (4) at the electric connection part, and having a resin coating part (7) which is made of a resin material and coats the electric connection part, wherein the resin coating part (7) is provided with a first coating layer (8) and a second coating layer (9),the firstcoating layer (8) is provided in a region that coats at least a part of the terminal fitting (5) so as to be in contact with the surface of the terminal fitting (5), the second coating layer (9) coats at least a part of the first coating layer (8), and the first coating layer (8) has a recessed portion that is coated with the second coating layer (9).