Low-cost and high-quality formula of smelting Q345B steel and preparation method of formula

A Q345B, high-quality technology, applied in the formulation of low-cost and high-quality smelting Q345B steel and its preparation field, can solve the problems of billet segregation and high cost, and achieve the effects of reducing smelting cost, improving strength, improving quality and output

Active Publication Date: 2016-10-26
河北中重冷轧材料有限公司
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Benefits of technology

This new technology involves replacing some parts (Mn) with another material called Titanium or Al). By adding this second component instead of just one more piece compared to regular stainless steels, it can make up for any reduction in costs associated with producing stronger materials like manganes while maintaining their properties such as ductility. Additionally, these alloys are less likely to crack during production due to its lower density than normal steels making them ideal candidates for use in applications that require higher tensile stress levels. Overall, this innovative process improves the performance and yield of certain types of specialty products made from castings containing specific grades of ferrite-based iron oxide magnets.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the quality or efficiency of producing certain types of materials such as quaternary steels from lower carbon alloys like q345. Existing methods have limitations due to their expensive raw materials and poor process controllers.

Method used

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Embodiment Construction

[0009] A low-cost and high-quality formula for smelting Q345B steel. The raw materials are iron ore, silicon-manganese alloy Si15Mn65, titanium-iron alloy 50TiFe, and aluminum alloy Al99, wherein the weight of silicon-manganese alloy Si15Mn65 added per ton of Q345B steel is 6.6kg-9.6kg; The quality of titanium-iron alloy 50TiFe added to Q345B steel is 0.6kg-0.9kg per ton; the quality of aluminum alloy Al99 added to Q345B steel is 1.69kg.

[0010] The preparation method of the above-mentioned low-cost and high-quality smelted Q345B steel uses titanium alloy and aluminum alloy to replace part of the Mn to strengthen the grains to increase the strength and reduce the segregation caused by the high-Mn steel. Add silicon-manganese alloy Si15Mn65, titanium-iron alloy 50TiFe, and aluminum alloy Al99 in the feeding method of strength and strength, and add all the alloys when the steel is tapped to 1 / 2. The ingredients are guaranteed to meet the national standard GB / T1591-2008.

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Abstract

The invention relates to a low-cost and high-quality formula of smelting Q345B steel and a preparation method of the formula. Raw materials comprise iron ores, silicon-manganese alloys Si15Mn65, ferrotitanium alloys 50TiFe and aluminum alloys Al99. 6.6kg-9.6kg of silicon-manganese alloys Si15Mn65 are added into each ton of Q345B steel, 0.6kg-0.9kg of ferrotitanium alloys 50TiFe are added into each ton of Q345B steel, and 1.69kg of aluminum alloys Al99 are added into each ton of Q345B steel. The titanium alloys and the aluminum alloys are used for replacing parts of Mn reinforced crystal grains to improve strength, segregation caused by high Mn steel is decreased, smelting cost is reduced, cast billet quality is ensured, and the quality and the yield of the Q345B steel are greatly improved.

Description

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Claims

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Application Information

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Owner 河北中重冷轧材料有限公司
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