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Steel for high-carbon low-aluminum low-oxygen cutting steel wires and vacuum induction smelting method thereof

The technology of vacuum induction melting and vacuum induction furnace is applied in the field of high-carbon, low-aluminum and low-oxygen cutting steel wire and its vacuum induction melting. The effect of broken wires, improved draw yield and final product properties

Active Publication Date: 2018-11-23
INST OF RES OF IRON & STEEL JIANGSU PROVINCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, domestic vacuum induction smelting manufacturers usually use alumina crucibles. If the normal smelting process is used to smelt the steel for cutting steel wires, it is very easy for the carbon in the molten steel to react with the alumina in the refractory material, resulting in Aluminum is added to molten steel, and even the composition exceeds the standard and is scrapped

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In this embodiment, the chemical composition of steel for high-carbon, low-aluminum, low-oxygen cutting steel wire includes: C0.9%, Si0.15%, Mn0.5%, Cr0.2%, Al0.0022%, O0.002%, N0 .0017%, S0.005%, P0.001%, and the balance is Fe and unavoidable impurity elements. The above-mentioned high-carbon, low-aluminum, low-oxygen cutting wire steel is smelted in a crucible made of alumina material in a vacuum induction furnace, including the materialization period, smelting period, refining period, and tapping and casting.

[0022] (1) Chemical material period: load pure iron, metal chromium, silicon and 0.1% carbon with the furnace; after evacuating to a vacuum level of the melting chamber ≤ 10Pa, start power transmission to heat the chemical material for the furnace material. The chemical material period is due to crucible The internal temperature is low, and the entire materialization period can be continuously evacuated, and the vacuum degree of the smelting chamber is control...

Embodiment 2

[0027] In this embodiment, the chemical composition of steel for high-carbon, low-aluminum, low-oxygen cutting steel wire includes: C0.91%, Si0.18%, Mn0.55%, Cr0.15%, Al0.0025%, O0.0015%, N0. 001%, S0.002%, P0.004%, and the balance is Fe and unavoidable impurity elements. The above-mentioned high-carbon, low-aluminum, low-oxygen cutting wire steel is smelted in a crucible made of alumina material in a vacuum induction furnace, including the materialization period, smelting period, refining period, and tapping and casting.

[0028] (1) Chemical material period: load pure iron, metal chromium, silicon and 0.1-0.2% carbon with the furnace; after evacuating to a vacuum degree of the smelting chamber ≤ 10Pa, start power transmission, heat chemical material to the furnace material, and chemical material period Due to the low temperature in the crucible, the entire materialization period can be continuously evacuated, and the vacuum degree of the melting chamber should be controlled ...

Embodiment 3

[0033] In this embodiment, the chemical composition of steel for high-carbon, low-aluminum, low-oxygen cutting steel wire includes: C0.92%, Si0.21%, Mn0.6%, Cr0.25%, Al0.0028%, O0.0013%, N0. 0.0012%, S0.003%, P0.005%, and the balance is Fe and unavoidable impurity elements. The above-mentioned high-carbon, low-aluminum, low-oxygen cutting wire steel is smelted in a crucible made of alumina material in a vacuum induction furnace, including the materialization period, smelting period, refining period, and tapping and casting.

[0034] (1) Chemical material period: load pure iron, metal chromium, silicon and 0.1-0.2% carbon with the furnace; after evacuating to a vacuum degree of the smelting chamber ≤ 10Pa, start power transmission, heat chemical material to the furnace material, and chemical material period Due to the low temperature in the crucible, the entire materialization period can be continuously evacuated, and the vacuum degree of the melting chamber should be controlle...

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Abstract

The invention discloses steel for high-carbon low-aluminum low-oxygen cutting steel wires and a vacuum induction smelting method thereof. The steel comprises the following chemical components in percentage by mass: 0.9-0.94% of C, 0.12-0.3% of Si, 0.3-0.65% of Mn, 0.1-0.3% of Cr, Al not more than 0.004%, O not more than 0.003%, N not more than 0.0025%, S not more than 0.01%, P not more than 0.01%,and the balance of Fe and inevitable impurity elements. Through control of the carbon feeding sequence and timing, the vacuum air cavity in different smelting phase and the low-temperature refining of 1540+-5 DEG C, the purpose of smelting the steel for the high-carbon low-aluminum low-oxygen cutting steel wires by an aluminum oxide crucible of a vacuum induction furnace is achieved.

Description

technical field [0001] The invention belongs to the field of vacuum induction smelting, and in particular relates to a high-carbon, low-aluminum, low-oxygen cutting wire steel and a vacuum induction smelting method thereof. Background technique [0002] Cutting steel wire, also known as cutting steel wire, is a special hard and brittle material. It is used for splitting. It is also a special steel wire coated with zinc and copper on the surface. It belongs to photovoltaic consumables and has a wide range of uses. It can be used to cut various high-precision hard and brittle products. , can act as an abrasive carrier for multi-wire saws. The cutting steel wire is a special steel wire, which combines excellent stability, uniformity, high precision, high strength and many other characteristics. [0003] Some specifications of cutting wire play an irreplaceable role in the production of modern industrial products. For example, the diameter of silicon wafer cutting wires on the...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/18C22C33/04
CPCC22C33/04C22C38/02C22C38/04C22C38/18
Inventor 胡显军成建强顾晔
Owner INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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