Bimetallic thermometer aging

Bimetallic thermometer aging 4 wuutphs aluminum alloy power bimetallic thermometer conductor at AA8030 series aluminum alloy material, the use of special type roller pressure molding line twisted production technology and advanced technology of the new material such as annealing treatment power bimetallic thermometer. Alloy power bimetallic thermometer make up for the deficiency of the past pure aluminum bimetal thermometer, although there is no improve the conductivity of the bimetallic thermometer, but flexural performance, creep resistance and corrosion resistance are greatly improved, can guarantee the bimetallic thermometer in a long time to keep continuous stable performance when overload and overheat, the AA - 8030 series aluminium alloy conductor, can significantly improve the conductivity of the aluminum bimetal thermometer, resistance to high temperature, at the same time solve the pure aluminium conductor [ 1] , creep, and other issues. The conductivity of the aluminum alloy is the most commonly used benchmark material copper IACS 61. 8%, carrying capacity is 79% of the copper is better than that of pure aluminium standards. But under the same volume, the weight of the aluminum alloy is about a third of the copper. Therefore, the same load flow when the weight of the aluminum alloy bimetallic thermometer is about half of the copper. Aluminum bimetal thermometer is used instead of copper, can reduce the bimetallic thermometer weight, lower installation costs, reduce equipment wear and bimetallic thermometer, make installation work more easily. Bimetallic thermometer aging aluminium alloy with good bending properties, its unique alloy formula, processing technology, to improve the flexibility. Aluminium alloy flexibility is 30% higher than copper, 40% lower than copper elasticity. General copper bending radius is 10 ~ 20 times the outer diameter of the aluminum alloy bimetallic thermometer was only seven times the outer diameter, bending radius easier to terminal connection. ( 5] Bimetallic thermometer aging aluminum alloy conductor is rare earth is added in the pure aluminium, magnesium, copper, iron and other elements, after emerging conductor material alloy process. As is known to all, add a variety of other alloying elements in aluminum, conductive performance will decline, and by process control, can make the conductivity back to close to the level of pure aluminum, make its have the similar pure aluminum and carrying capacity. The practice proved: at room temperature under the condition of copper and aluminum bimetal thermometer bent 90 degrees, stress release, aluminum bimetal thermometer rebound Angle for 60% of copper. For aluminum bimetal thermometer have no memory, so a rebound performance is better than that of copper core bimetallic thermometer, terminal connector in the installation process is easy to compress, increase its close degree, improve the stability of the connection. Electrochemical corrosion: refers to the consists of metal and medium after primary element, formed the corrosion of metal process, when connected to the metal of the two different electrode potential, and there is water or other electrolytes, creates an electric current between two metal form a galvanic cell, one of the metal in the positive potential, another is in the negative potential, in the negative potential of the metal is constantly to ion state via the electrolyte to metal accumulation in a positive potential. Making the metal loss gradually in the negative potential, form the electrochemical corrosion. The difference between the two metal electrode potential is larger, the electrochemical corrosion is strong. The higher the temperature, the corrosion of metals is also more serious.