One Of High Level Materials Seamless Pure Calcium Cored Wire

An inner buckle solid core pure calcium cored wire, comprising: an outer strip steel and a solid core calcium wire; the inside of the outer strip steel is provided with a through hole, the calcium wire is a cylinder, and the outer circular surface of the calcium wire is connected with the inner surface of the through hole;The inner side of the outer strip steel is provided with a buckle joint part in the length direction, and the buckle seam part is bent into an inner buckle structure, and the inner buckle structure is positioned in the accommodating space. The outer rib is unreinforced, cylindrical, and maintains a high yield; 

1.A method for rapid determination of metal calcium content in seamless pure calcium cored wire. At room temperature and pressure, NH4Cl solution was used as the solubilizing reagent, high-purity magnesium metal or calcium metal was used as the standard, and the gas volume method and related devices were used to determine the volume of hydrogen produced by the standard sample of magnesium metal or calcium metal and the sample to be measured under the same experimental conditions, and the content of metal calcium in the calcium-iron cored wire was calculated by comparative method according to the gas equation of state. The method of the present invention is not only suitable for the determination of metal calcium in calcium-iron cored wire with different calcium content, but also suitable for the measurement of metal calcium in calcium-based cored wire such as aluminum-calcium cored wire with different calcium content, silica-calcium wire. The method of the present invention is simple to operate, the measurement is fast, the accuracy is high, and it is easy to promote.

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