48results about How to "Corrosion effective" patented technology

The invention provides a method for removing a shielding layer in an anodized aluminum pore channel. Through selective adsorption reaction of gamma-chloropropyl trimethylsilane with a porous layer andthe shielding layer and subsequent alkaline corrosion reaction which can effectively corrode the shielding layer located at the bottom of the anodized film pore channel, the electrical conductivity of an anodized substrate is effectively improved.

The invention provides a composite material with high bonding force. A shielding layer at the bottom of an anodized film, an aluminum metal substrate is exposed, and then single-metal electroplating treatment is carried out, so that bonding of an anodized substrate and a coating is effectively improved.

The invention relates to a traceless spliced cable protective jacket and a preparation method thereof, which belong to the technical field of electric power facilities, and solves the problem of providing a cable protective jacket which is high in strength, good in toughness, good in flame retardance, corrosion resistance and long in service life and a preparation method of the cable protective jacket. The protective jacket consists of sections A and sections B which are alternately arranged, the length ratio of the section A to section B is (2 to 4): 1, the section A and the section B which are adjacent to each other are connected in a fusion manner, and the outer surfaces of the section A and the section B are coated with protective paint C. The protective jacket is good in flame retardance, good in toughness, high in strength, resistant to sunlight, excellent in anticorrosion performance, and capable of effectively preventing the corrosion of acid and alkali salts; moreover, the protective jacket has good high temperature resistance, can effectively protect the cable for a long time and can prevent the safety potential danger; by virtue of the detection in test, the tensile strength of the protective jacket is greater than 35MPa, the elongation at break is 850 percent or above, the flame-retardant grade can reach grade A, and after being stored at the high temperature or soaked for a long time in acid and alkali salts, the surface of the protective jacket has no change.

The invention provides a corrosion-increasing interface treatment agent and a preparation method thereof. Cationic exchange resins and fluoride compounds are used as corrosive agents to generate hydrofluoric acid in an aqueous solution to effectively corrode elements in materials and destroy The smoothness of the material interface can expand the effective surface area of ​​the interface and increase the adhesion of the material surface. Secondly, when the corrosion-increasing interface treatment agent is used, phosphate compounds, hydrochloride compounds, and nitrate compounds can form mixed acids, thereby avoiding the corrosion of a single acid of hydrofluoric acid and achieving a corrosion-increasing effect. The present invention also provides a corrosion-inhibiting interface treatment agent and a preparation method thereof, using cation exchange resin and fluoride compounds as corrosive agents to expand the effective surface area of ​​the interface and increase the interface adhesion; surfactant 1227, hexadecyl Trimethylammonium bromide and cetylpyridinium bromide can effectively block the corrosion and hydrogen penetration of hydrofluoric acid on the material surface, reduce the corrosion efficiency, and achieve the corrosion inhibition effect.