56results about How to "To achieve the purpose of rust prevention" patented technology

The invention relates to a metal surface rust protection solution which is prepared by following raw materials of sodium benzoate, sodium nitrite, a high polymer composite enhanced active agent, ethylenediamine tetraacetic acid, sodium tripolyphosphate, dipotassium benzene, polyethylene glycol, urea, glycerol and water. By using the rust protection solution, erosion resistance of a metal surface can be improved, a moist insulation property and an air insulation property of a protective layer are improved, and therefore the metal surface is enabled to have a reliable and longstanding rust protection effect. In addition, the rust protection solution has a function of providing excellent rust protection for metal materials and metal products, is reusable, without liquid waste discharging, without acid mist which can cause pollution to the environment, safe and reliable, and easy to operate, can not burn the skin in use, and causes no stimulation and no harm to human bodies.

The invention provides an epoxy anticorrosion decoration paint. The epoxy anticorrosion decoration paint is characterized by being prepared by mixing a component A and a component B according to the weight ratio of 4:1, wherein the component A contains 30-50% of low molecular weight epoxy resin, 5-10% of zinc phosphate, 5-10% of packing, 5-10% of aluminium triphosphate, 20-30% of iron oxide red, 0.2-0.5% of tetra-n-propyl zirconate, 0.1-0.3% of silane coupling agent and 5-20% of butyl cellosolve, and the component B contains 30-50% of amino-terminated epoxy-amine affixture, 0.1-0.5% of penetrant, 0.1-0.5% of phytic acid, 30-48% of ethanol and 30-48% of n-butyl alcohol. The paint has excellent corrosion resistance, strong base material adhesion, good flexibility and shock resistance, high solid content, low viscosity, strong tolerance to environment humidity and strong construction adaptability.

The invention belongs to the technical field of a metal anti-corrosion coating, and particularly relates to a rust transforming agent and a preparation method thereof, a water-based iron rust conversion coating and a preparation method thereof. The rust transforming agent comprises a step of synthesizing 2-hydroxypropyl 3,4,5-trihydroxybenzoic acid by taking a gallic acid, 1,2-propylene glycol and a p-toluenesulfonic acid as initial raw materials, wherein the rust transforming agent contains 18.5-26.7% of gallic acid, 66.6-74% of 1,2-propylene glycol, and 6.6-7.5% of p-toluenesulfonic acid; the water-based iron rust conversion coating is prepared from a vinylidene chloride composite polymer emulsion, ethylene glycol butyl ether, filling slurry prepared in the step (1) and the rust transforming agent. The prepared rust transforming agent disclosed by the invention is good in water tolerance, strong in stability, and good in matching property with a water paint and an oil paint.

The invention discloses an environment-friendly water-based antirust liquid formula. The formula includes, by weight, 10-20 parts of phytic acid, 10-15 parts of konjac glucomannan, 3-12 parts of a-D-glucose pentaacetate, 0.5-5.5 parts of carboxymethyl cellulose, 2-5 parts of sodium alginate, 5-15 parts of sebacic acid, 1-5 parts of triethanolamine, 30-80 parts of deionized water and 1-2 parts of antioxidant. An antirust liquid preparing method is simple, the antirust effect is good, good rust prevention can be achieved at low concentration, no toxin exists, the antirust liquid is harmless to the human body and the environment, and the environment-friendly water-based antirust liquid formula can be applied to rust prevention in high-temperature and high-humidity environments for ethyl HT300 cast iron of hot-rolled steel plates and cold-rolled steel plates.

The invention relates to a mine hydraulic cylinder capable of achieving hydraulic medium replacement under pressure. The hydraulic cylinder is provided with a cylinder body (2), a piston (3) located in the cylinder body (2) and a piston rod, wherein the piston rod is connected with the piston (3) into a whole and stretches out of the cylinder body (2). The space inside the cylinder body (2) is divided into a rodless cavity part and a rod cavity part. The rodless cavity part is provided with a rodless cavity control liquid connector (8), and the rod cavity part is provided with a rod cavity control liquid connector (7). A liquid supply pipeline is connected with the rod cavity part through the rod cavity control liquid connector. The piston rod is further provided with a rodless cavity liquid discharge port (5) communicated with a rodless cavity, and a rod cavity liquid discharge port (6) communicated with a rod cavity. The invention further provides a replacement method for a hydraulic medium of the hydraulic cylinder. By means of the technical scheme, working media in the rod cavity part and the rodless cavity part can be replaced under pressure, the purpose of replacing stagnant water in the hydraulic cylinder is achieved, and thus corrosion of the hydraulic cylinder is prevented or slowed down.

The invention discloses an electric automation reinforcing steel bar straightening machine, which comprises a workbench and a collection box, wherein the front part of the upper end of the workbench is fixedly provided with a straightening device, a rust removal device and an oil coating device; the straightening device, the rust removal device and the oil coating device are arranged in sequence from left to right; a position, which is positioned behind the straightening device, of the upper end of the workbench is provided with a first driving mechanism; a position, which is positioned behindthe rust removal device, of the upper end of the workbench is provided with a second driving mechanism; the right rear corner of the workbench is fixedly provided with an electronic control box; thelower end of the workbench is fixedly provided with a supporting frame; the upper end of the workbench is provided with a blanking groove which is vertically through; and an opening on the upper end of the collection box is positioned just below the blanking groove. The electric automation reinforcing steel bar straightening machine disclosed by the invention combines working procedures, includingreinforcing steel bar straightening, reinforcing steel bar rust removal, reinforcing steel bar straightening rust prevention and the like, into a whole, working efficiency can be greatly improved, better economic benefits can be brought, and the electric automation reinforcing steel bar straightening machine is suitable to be popularized and utilized.

The invention discloses a composite antirust paint. The composite antirust paint comprises components in parts by weight as follows: 30-50 parts of styrene acrylic emulsion, 10-20 parts of formaldehyde resin, 10-20 parts of talcum powder, 3-5 parts of zinc oxide, 3-5 parts of barium sulfate, 10-20 parts of titanium dioxide, 1-3 parts of sodium benzenesulfonate, 5-8 parts of ethylene glycol, 1-3 parts of polyacrylamide and 60-100 parts of water. Compared with a prior art, the composite antirust paint provided by the invention is the composite antirust paint for permeable rust; mainly using composite resin with strong permeability as a main film forming matter and being assisted by other auxiliary agents, the coated composite antirust paint penetrates into a rust layer to isolate the rust from outer media so as to achieve the antirust purpose. The composite antirust paint provided by the invention has the advantages of good antirust effect, simple preparation process and cheap price.

The invention relates to a paddy field wheeled tractor which comprises a power system assembly, a walking system assembly, a transmission system assembly, a covering part assembly, a steering system assembly, a hydraulic system assembly and a rear working device. The transmission system assembly serves as the basis of the whole tractor. The power system assembly, the walking system assembly, the covering part assembly, the steering system assembly, the hydraulic system assembly and the rear working device are directly or indirectly connected with the transmission system assembly. By optimizingthe structural layout, the front wheel steering angle is increased, the turning radius of the whole machine is reduced, the ground clearance of the whole machine is increased, and the mass of the whole machine is reduced, so that the tractor has good trafficability in a paddy field, and the requirements of the national IV emission standard are met.

The invention provides a twisted bar surface rust prevention method. The twisted bar is subjected to vapor bath treatment to generate a protective layer on the twisted bar surface. The twisted bar on-line rust prevention method can obtain the twisted bar with favorable surface gloss, and can satisfy the requirements for continuous production of twisted bars.

The invention relates to a gas-resistance antirust pearl cotton and a preparation method thereof, belonging to the technical field of polymer materials. The pearl cotton includes the following raw materials in parts by weight: 80-100 parts of LDPE resin particles, 0.5-1 part of modified attapulgite, 0.5-1 part of talcum powder, 0.2-0.4 parts of foaming agent, and 0.002 parts of color masterbatch. ~0.005 parts, 0.2~0.5 parts of monoglyceride, 8~10 parts of nitrogen flame retardant, 6~12 parts of 4-(N,N-di-n-butyl)-aminomethylmorpholine, 1~ 2 servings. On the basis of maintaining the advantages of traditional pearl cotton, the product of the present invention adds a nitrogen-based flame retardant, so that the product of the present invention has a good flame-retardant effect. Morpholine is a gas-phase corrosion inhibitor, which has a good gas-phase anti-rust function, so that the purpose of anti-rust can be achieved without additional anti-rust packaging materials during metal transportation, saving manpower and material resources.

The invention relates to preparation methods of an organic oxime rust transforming agent and an aqueous iron rust transforming undercoat. The organic oxime rust transforming agent is prepared from the following raw materials in percentage by weight: 27%-35% of methanol, 0.7%-1.0% of Mg, 8.5%-12.7% of methylbenzene, 0.83%-1.75% of gallic acid, 11.3%-15.7% of N,N-dimethylformamide, 12.0%-17.5% of formaldehyde, 3.6%-5.8% of hydroxylamine hydrochloride and 20.1%-25.4% of deionized water. The aqueous iron rust transforming undercoat is prepared from the following raw materials in percentage by weight: 30%-60% of vinylidene chloride composite macromolecular emulsion, 1.5%-3.0% of butyl cellosolve, 1.0%-4.0% of a rust transforming agent and the balance of pigment filling slurry. The organic oxime rust transforming agent and the aqueous iron rust transforming undercoat are good in transforming property and can react chemically with iron rust to generate stable complexes, so that the iron dust is effectively sealed and isolated from external substances, thus achieving a rust prevention purpose.

The invention belongs to the technical field of coatings and particularly relates to a solvent-free railway screw spike antirust corrosion-resistant coating and a preparation method thereof. The preparation method includes following steps: (1) successively feeding raw materials into a high-speed dispersing machine for dispersion, wherein the raw materials includes, by mass, 100 parts of epoxy resin, 30-40 parts of glycidyl ether, 0.5-1 part of polyaniline and 1-2 parts of gas-phase white carbon black; (2) successively adding 300-400 parts by mass of aluminium tripolyphosphate, 0.1-1 part by mass of diphenyl guanidine chromate and 3-5 parts by mass of nano calcium carbonate into the dispersed raw materials and performing dispersion continuously to obtain an A component raw mixture; (3) grinding the A component raw mixture on a sand mill and discharging an obtained material; and (4) heating 100 parts by mass of a modified aromatic amine and adding 4-6 parts by mass of salicylic acid, maintaining the temperature and mixing and stirring the mixture for one hour to obtain a B component raw mixture; and (5) mixing the grinded A component raw mixture and the obtained B component raw material mixture with stirring uniformly to obtain a finished product of the coating.