Xiu Jianjun

TL;DR: In this article, the utility model provides an automatic device of adding of refining furnace ladle covering agent, including covering agent storage tank, conveyer pipe, funnel, funnel support and funnel rotating electrical machines during constitutes.

TL;DR: In this article, a method for deep desulfurization in the bearing steel smelting process is proposed, which comprises the steps of 1, pre-desulfurisation of molten iron, wherein after pre-de sulfurization is completed, the content of S in the molten iron is not larger than 0.015; 2, converter smeltering, wherein the tapping temperature of a converter is not smaller than 1,650 DEG C, the oxygen content is not higher than 400 ppm, and the content S in S at the converter end point is not

TL;DR: In this article, a smelting method of steel for high-strength atmospheric corrosion-resistant bolts is described, which is more sufficient by adjusting the formula and optimizing design of the deoxidation alloying process, the alloy yield is increased, the molten steel has gooddesulfurization capability and good inclusion adsorption capability by controlling composition of refining slag, so that the number of inclusions in finished molten steel is reduced, and cleanliness of the molten steels is greatly reduced, the influence of the inclusions on the fatigue life of the material is reduced

TL;DR: In this paper, a device and method for preventing electrodes from being connected and placed into a refining furnace mistakenly, and belongs to the technical field of steelmaking refining furnace equipment is described.