Melting process of high-medium carbon steel free of normalizing and annealing

A carbon steel and normalizing technology, applied in the field of metal material processing, can solve problems such as high production cost, high processing requirements, and increase the complexity of the overall production process, so as to improve production efficiency, ensure mechanical properties, and reduce complexity Effect

Inactive Publication Date: 2018-07-17
ANHUI HUSN KEWAN SPECIAL CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the metallurgical industry, when high-carbon steel and medium-carbon steel are smelted, in order to ensure better structural properties and eliminate certain stress, the steel will be normalized and annealed, which will undoubtedly increase the production cost. Moreover, the complexity of the overall production process is increased, and in order to meet the steel structure with better cutting and processing capabilities, the requirements for subsequent processing are higher.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of smelting process of exempting normalizing and annealing of high and medium carbon steel, which comprises the following steps:

[0017] 1) Material preparation: clean and dry low-sulfur, phosphorus-free, dry, oil-free, and less-corroded steel scraps, and select appropriate grades of steel scraps according to the performance and composition requirements of each product and place them in the intermediate frequency furnace. , The deoxidizer is baked and guaranteed to be clean, and the alloy composition is clarified;

[0018] 2) Workpiece inspection: Before charging, check the furnace lining, power supply, water supply, mechanical system and equipment to ensure that the furnace is ready for opening;

[0019] 3) Charging: Add small materials and fusible materials (high and medium carbon steel materials) to the bottom of the intermediate frequency furnace (crucible), add large pieces of scrap steel and refractory materials to the middle of the intermediate frequency ...

Embodiment 2

[0025] A kind of smelting process of exempting normalizing and annealing of high and medium carbon steel, which comprises the following steps:

[0026] 1) Material preparation: clean and dry low-sulfur, phosphorus-free, dry, oil-free, and less-corroded steel scraps, and select appropriate grades of steel scraps according to the performance and composition requirements of each product and place them in the intermediate frequency furnace. , The deoxidizer is baked and guaranteed to be clean, and the alloy composition is clarified;

[0027] 2) Workpiece inspection: Before charging, check the furnace lining, power supply, water supply, mechanical system and equipment to ensure that the furnace is ready for opening;

[0028] 3) Charging: Add small materials and fusible materials (high and medium carbon steel materials) to the bottom of the intermediate frequency furnace (crucible), add large pieces of scrap steel and refractory materials to the middle of the intermediate frequency ...

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PUM

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Abstract

The invention discloses a melting process of high-medium carbon steel free of normalizing and annealing. The melting process comprises the following steps of material preparation, workpiece inspection, charging, melting, deoxidizing, and treatment and pouring. The melting process is simple in process, the normalizing and annealing processes in the high-medium carbon steel treatment process are omitted, the production efficiency is improved, and the production cost is reduced; and meanwhile, the process of the high-medium carbon steel by adding silicon steel sheets is guaranteed, the cutting and processing capability of a product is improved, and various mechanical properties of steel type are guaranteed, and the complexity of the production process is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of metal material processing, in particular to a smelting process for high and medium carbon steel without normalizing and annealing. Background technique [0002] In the metallurgical industry, when high-carbon steel and medium-carbon steel are smelted, in order to ensure better structural properties and eliminate certain stress, the steel will be normalized and annealed, which will undoubtedly increase the production cost. Moreover, the complexity of the overall production process is increased, and in order to meet the steel structure with better cutting and processing capabilities, the subsequent processing requirements are higher. Contents of the invention [0003] For this reason, the present invention proposes a smelting process free of normalizing and annealing for high and medium carbon steel, which omits the normalizing and annealing processes in the treatment process for high and high carbon stee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/06C21C5/52C21C7/06
CPCC21C5/5264C21C7/06C22C33/06Y02P10/20
Inventor 陈象青刘成铭沈雁周立明李勇宋连华叶世林徐爱民
Owner ANHUI HUSN KEWAN SPECIAL CASTING
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