30results about How to "Short rust removal time" patented technology

The invention provides a metal water-based rust removal antirust solution. The metal water-based rust removal antirust solution comprises raw materials including, by weight part, 2 to 6 parts of citric acid, 2 to 8 parts of lauryl sodium sulfate, 2 to 4 parts of tartaric acid, 1 to 5 parts of sodium citrate, 2 to 6 parts of polyaspartic acid, 0.4 to 1.2 parts of oxidized starch, 5 to 10 parts of cetyl-trimethyl ammonium bromide, 10 to 15 parts of polyoxyethylene fatty alcohol sodium sulfate, 1 to 2 parts of OP-10, 1 to 3 parts of chitosan, 2 to 8 parts of mesoporous silica, 10 to 20 parts of PEG200, 15 to 20 parts of propanediol butyl ether and 60 to 90 parts of water. The invention further provides a preparing method of the metal water-based rust removal antirust solution. The metal water-based rust removal antirust solution has multiple functions of rust removal, dirt removal, phosphatization, passivation and the like, a reaction is carried out at the normal temperature, the rust removal time is short, the antirust time is long, and corrosion to the metal is avoided.

The invention relates to the technical field of metal antirust and anticorrosion, and is a metal antirust agent, which is composed of the following raw materials in weight fractions: 25-30 diethylene glycol monobutyl ether, 17-25 phosphoric acid, 8-15 corrosion inhibitors, Surfactant 8-10, acrylate emulsion 2-5, deionized water 25-30; the invention has mild formula, strong derusting ability, short derusting time, friendly to the environment, and is mainly used for metal antirust and anticorrosion.

The invention provides an environment-friendly corrosion-prevention metal oil-rust removing agent and a preparation process thereof. The oil-rust removing agent is prepared from the following components in parts by weight: acetic anhydride, itaconic acid, 1,3-butylene glycol, oleic acid, nano-zirconia, 8-hydroxyquinoline, boric acid, caprolactam, nano-cerium oxide powder, disodium ethylene diamine tetraacetate, saponin powder, heterogeneous alcohol polyoxyethylene ether, matrine, methylisothiazolinone, thiourea, 3-amino-4-octanol, sodium citrate, deionized water and ethanol. The oil-rust removing agent provided by the invention has an integral oil-rust removing effect, the rust removing time is only 5-10 minutes, the surface of metal is bright and has no obvious rust trace after the rust removing treatment, obvious rust spot or rust trace is not generated after the metal which is subjected to oil-rust removal is placed at the room temperature for 1 month, and the metal is good in corrosion resistance, does not secondarily rust within 2 months and does not generate smoke, so that the oil-rust removing agent is safe to use, environmentally friendly and suitable for being popularized and used.

The invention discloses a preparation method of a metal rust removing liquid. The preparation method comprises steps as follows: sodium metasilicate, polyethylene glycol, polyvinyl alcohol, sodium citrate, lecithin and water are heated and mixed uniformly, and a first mixture is obtained; triethanolamine, ammonium molybdate, triethanolamine oleate, urea, sodium carboxymethylcellulose and water are taken and mixed uniformly, and a second mixture is obtained; etidronic acid is taken and added to the first mixture, an obtained mixture is heated under the inert gas shielding condition, the second mixture is added during stirring of the obtained mixture, stirring is continued after addition of the second mixture, then ethanediamine and acetic anhydride are dropwise added and mixed uniformly to reach the room temperature, and the metal rust removing liquid is obtained. The metal rust removing liquid is convenient to use, all that is required is to soak the metal requiring rust removal into the metal rust removing liquid, rust is removed thoroughly, the rust removing time is short, and the metal surface is not damaged after rust removal.

The invention provides a bearing derusting device. The bearing derusting device comprises a base, a driving assembly, a supporting assembly, a transmission assembly and an actuating assembly, whereinthe supporting assembly comprises a supporting plate and a supporting column; the supporting plate is mounted on the base; the supporting column is vertically fixed to the supporting plate and used for penetrating through a bearing; a plurality of fixing holes are formed in the supporting column; each fixing pin can penetrate through the corresponding fixing hole; the bearing can be limited between the fixing pins and the supporting plate through the fixing pins; the transmission assembly comprises a belt, a first bevel gear, a second bevel gear, a first belt wheel, a second belt wheel, a third belt wheel and a fourth belt wheel; the actuating assembly comprises a driving wheel and two turning wheels; the center of the driving wheel is fixed to the center of the third belt wheel through asecond transmission shaft; and the two turning wheels are fixed to the center of the third belt wheel and the fourth belt wheel through two third transmission shafts correspondingly. The problem thatin the prior art, the efficiency of manual bearing derusting is lower is solved, and the bearing derusting device has the effects of being simple in structure and low in energy consumption.

The invention provides a screwdriver for screwing rusty screws, belongs to the technical field of hardware, and solves the problems of large odor, long time and low efficiency when screwing rusty screws after spraying a rust remover. The screwdriver for screwing rusty screws comprises a shell with an open upper end, wherein a working space is defined in the shell, a power mechanism is installed inthe shell, discharging mechanisms are respectively provided at the left and right ends of the power mechanism, the two discharging mechanisms are symmetrically distributed left and right with respectto the center line of the power mechanism, and the end faces of the left and right sides of the shell are also distributed with limit mechanisms that control the start and stop of the discharging mechanisms. The screwdriver used for screwing rusty screws is more convenient, labor-saving and more efficient.

The invention discloses a hardware surface efficient rust remover. The hardware surface efficient rust remover comprises the following raw materials of, by weight, 10-20 parts of acetic anhydride, 5-15 parts of hydrochloric acid, 3-9 parts of 1,3-butanediol, 3-9 parts of oleic acid, 1-4 parts of nanometer zirconium dioxide, 5-10 parts of nano cerium oxide powder, 1-2 parts of sodium dodecyl sulfate, 6-12 parts of Chinese honeylocust fruit powder, 4-12 parts of alkylphenol ethoxylate, 3-9 parts of matrine, 1-5 parts of sodium citrate, 80-100 parts of deionized water and 10-30 parts of ethanol. A preparation method of the hardware surface efficient rust remover comprises the following steps that (1) all the raw materials are weighed; (2) a solution A is prepared; (3) a solution B is prepared; and (4) mixing and standing are conducted. The hardware surface efficient rust remover is good in rust removal effect, short in rust removal time and capable of removing oil contamination and rust on the surface of metal, and the corrosion phenomenon does not occur to the metal. After rust removal, the surface of hardware is bright and is free of rust marks, smoke is not produced, usage is safe, the environment-friendly effect is achieved, and the hardware surface efficient rust remover is suitable for wide usage and popularization.

The invention discloses rusty scraper knife recycling and machining equipment, which comprises a working box. A working cavity is fixedly formed in the working box, a feeding shaft and a transmissionshaft are rotationally arranged on the rear wall of the working cavity, a feeding belt pulley is arranged between the feeding shaft and the transmission shaft in a transmission connection mode, 22 clamping grooves are fixedly formed in the feeding belt pulley in an arrayed mode, scraper knives are inserted into the clamping grooves, and the scraper knives comprise first handles and second handles.The scraper knives are inserted into input grooves of the input belt pulley, a handle sleeve in the equipment automatically locks a handle, the scraper knives are driven to move into a derusting cavity, rust on the surfaces of blades of the scraper knives is cleared by a high-pressure water gun, and wastewater generated after derusting is filtered and then recycled into a water tank; and the scraper knives are dried by a brush capable of blowing air and then inserted into an output belt pulley, a worker takes the scraper knives down from the equipment, automatic derusting of the scraper knives is realized, the derusting time is greatly saved, and the derusting efficiency and quality of the scraper knives are improved by automatic derusting.

The invention provides a neutral oil and rust removal agent and a preparation method and application thereof, and relates to the technical field of oil and rust removal. The neutral oil and rust removing agent is prepared from fatty alcohol-polyoxyethylene ether, HEDP-4Na, citric acid, EDPA-2Na, sodium tripolyphosphate, potassium chloride, thiourea, formic acid and water. The neutral oil and rust remover disclosed by the invention has the characteristics of no corrosion to a metal body, high rust removal rate, short rust removal time and long rust prevention period in a rust removal process. The neutral oil and rust removing agent further has the advantages of being simple in preparation process and low in cost, and has good large-scale industrial production and use prospects.

The invention relates to a novel steel bar rust removal device. The device is characterized by comprising a first protective cylinder and a second protective cylinder arranged in the first protectivecylinder in a sleeved mode, wherein steel wire brushes are uniformly distributed on an inner wall of the second protective cylinder, notches are vertically and downwards formed on the same sides of the first protective cylinder and the second protective cylinder, a cylinder bottom is formed at a bottom end of the first protective cylinder, a plurality of return springs are vertically arranged in the circumferential direction of the cylinder bottom, a top end of the reset spring is fixedly connected with a bottom end of a cylinder wall of the second protective cylinder, a guide hole is vertically formed in the middle section of the cylinder wall, deviating from the notch side, of the first protective cylinder, a guide block extending out of the guide hole is horizontally and fixedly connected with the cylinder wall, deviating from the notch side, of the second protective cylinder, and a driving device for repeatedly shifting the guide block to enable the guide block to vertically reciprocate in the guide hole is arranged outside the cylinder wall, close to one side of the guide block, of the first protective cylinder. The device is advantaged in that on the premise that the construction progress is guaranteed, rust on surfaces of steel bars can be evenly removed, the rust removing effect is good, efficiency is high, and the labor burden of workers is relieved.