58results about How to "Good rust resistance" patented technology

The invention discloses a novel environment-friendly efficient anticorrosive paint which takes ironmaking steel slag as raw material. Steel slag micro powder with a little armco magnetic iron is obtained by grinding, magnetic separating, drying, milling, classifying and secondly magnetic separating the steel slag, power surface is treated by powder surface conditioning agent, and the product is obtained after additive is added into the steel slag micro powder. The preparation method of the paint comprises the steps: grinding the ironmaking steel slag; magnetic separating, drying, milling, classifying and secondly magnetic separating the grinded steel slag; surface chemical modifying powder granules; adding the additive and the like. The invention transforms the ironmaking steel slag with no or less value into the anticorrosive paint which has high value, good anti-corrosive property, no heavy metal and low cost, thereby not only solving the serious pollution problem of anticorrosive paint such as red lead type lead chromium, and the like, but also having good anti-corrosive property and cost performance in the anticorrosive paints.

The invention discloses primer-topcoat paint used for steel structures and allowing painting on rusty surfaces. The primer-topcoat paint used for steel structures and allowing painting on rusty surfaces is prepared from raw materials in percentage by weight as follows: 55%-65% of an acrylic polymer emulsion, 0.1%-0.2% of a defoaming agent, 0.15%-0.25% of a base material wetting agent, 0.1%-0.3% of a wetting dispersant, 2%-20% of titanium dioxide, 5%-9% of zinc phosphate, 0.3%-0.5% of a flash-rust inhibitor, 3%-4% of dipropylene glycol mono butyl ether, 0.1%-0.2% of ammonium hydroxide, 0.4%-0.6% of a thickening agent, 0.05%-0.1% of a corrosion remover and 10%-20% of deionized water. The primer-topcoat paint used for steel structures and allowing painting on rusty surfaces adopts a reasonable formula and can be directly used on rusty steel, the same paint is required to be applied twice or above, flash rust and early rust cannot occur, and the paint is safe, environment-friendly and excellent in performance.

The invention relates to an energy-saving instantaneous variable-frequency electromagnetic water heater, which comprises a shell, a heating cylinder and a power supply control device. A water outlet and a water inlet communicated with a heat dissipation sheet are respectively arranged at the upper end and the lower end of the heating cylinder. A high-temperature resistance waterproof insulation coil electrically connected with the power supply control device is wound outside the heating cylinder. A spiral magnetic steel pipe is wound in the heating cylinder. A magnetic steel bar is arranged in the magnetic steel pipe. The energy-saving instantaneous variable-frequency electromagnetic water heater disclosed by the invention has the benefits that: the water heater has the advantages of high heat conversion efficiency, rapid heating speed, water and electricity separation, safety, reliability, low noise, no pollution, beautiful appearance, practicability, simple installation, convenience maintenance, steady working, long service life, low fault rate, maintenance-free, energy saving, emission reduction and low cost; the water heater can automatically work by setting temperatures according to user requirements; after being magnetized, water in the pipeline has the functions of removing and preventing scale, simultaneously, the water also has the good integrated functions of sterilizing, removing seaweeds, resisting corrosion, retarding corrosion and the like.