Preparation method of boron-antimony alloy roller material

A technology of antimony alloy and roll, which is applied in the field of preparation of boron-antimony alloy roll materials, can solve problems such as poor thermal fatigue performance, poor casting performance, and shortened life, and achieve strong thermal crack resistance, good toughness, and reduced production costs. Effect

Inactive Publication Date: 2015-04-01
WUHU JINLONG MOLD FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems of poor wear resistance, poor casting performance, poor thermal fatigue performance, shortened service life and high cost of existing rolls existing in the prior art, the invention provides a method for preparing boron-antimony alloy roll material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A boron-antimony alloy roll material, the mass ratio is as follows,

[0031] C 1.5%

[0032] Si 0.5%

[0033] Mn 0.2%

[0034] Al 0.6%

[0035] Cr 5%

[0036] Mo 5%

[0037] S 0.2%

[0038] B 0.2%

[0039] Ni 8%

[0040] Ti 0.1%

[0041] Fe 78.7%.

[0042] Boron: Boron can form high-hardness iron-boron compounds with iron, which is beneficial to improve the wear resistance of rolls, but too much addition will obviously increase the brittleness of rolls, so the boron content is controlled at 0.01%-0.2%.

[0043] Aluminum: Aluminum is a non-carbide and boride forming element. It is mainly dissolved in the matrix to improve the high-temperature hardness and high-temperature wear resistance of the matrix. Aluminum also has good high-temperature oxidation resistance, especially the addition of aluminum, which promotes the transformation of the matrix structure of the as-cast roll Forming pearlite and ferrite, reducing the as-cast hardness of the roll, which is cond...

Embodiment 2

[0053] A boron-antimony alloy roll material, the mass ratio is as follows,

[0054] C 1.8%

[0055] Si 3%

[0056] Mn 1.6%

[0057] Al 0.8%

[0058] Cr 2%

[0059] Mo 9%

[0060] S 0.1%

[0061] B 0.01%

[0062] Ni 3%

[0063] Ti 0.15%

[0064] Rare earth elements 0.005%

[0065] Fe 78.535%.

[0066] A kind of preparation method of boron-antimony alloy roll material based on above-mentioned formula, its steps are as follows:

[0067] (A) Weigh the materials in the above mass ratio, first mix and heat Fe, Cr, Ti, Mn, Mo, Ni, and S to melt, and after the molten steel is dissolved, remove slag, desulfurize, and deoxidize;

[0068] (B) Then add C, B, Si and Ti, and then raise the temperature of molten steel to 1605-1615°C;

[0069] (C) Al alloying is then added, and the composition is adjusted before the furnace to pass the furnace, and the molten steel temperature is 1635-1650°C;

[0070] (D) Casting into rolls when the molten steel temperature is 1405-1430°C;

[00...

Embodiment 3

[0075] A boron-antimony alloy roll material, the mass ratio is as follows,

[0076] C 1.6%

[0077] Si 2%

[0078] Mn 0.5%

[0079] Al 0.6%

[0080] Cr 3%

[0081] Mo 7%

[0082] S 0.15%

[0083] B 0.08%

[0084] Ni 5%

[0085] Ti 0.1%

[0086] Fe 79.97%

[0087] A kind of preparation method of boron-antimony alloy roll material based on above-mentioned formula, its steps are as follows:

[0088] (A) Weigh the materials in the above mass ratio, first mix and heat Fe, Cr, Ti, Mn, Mo, Ni, and S to melt, and after the molten steel is dissolved, remove slag, desulfurize, and deoxidize;

[0089] (B) Then add C, B, Si and Ti, and then raise the temperature of molten steel to 1605-1615°C;

[0090] (C) Al alloying is then added, and the composition is adjusted before the furnace to pass the furnace, and the molten steel temperature is 1635-1650°C;

[0091] (D) Casting into rolls when the molten steel temperature is 1405-1430°C;

[0092] (E) After rough machining, the roll...

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PUM

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Abstract

The invention discloses a preparation method of a boron-antimony alloy roller material, and belongs to the technical field of roller material production. The boron-antimony alloy roller material comprises the following constituents according to the mass ratio: 1.5-1.8% of C, 0.5-3% of Si, 0.2-1.6% of Mn, 0.6-0.8% of Al, 2-5% of Cr, 5-9% of Mo, 0.1-0.2% of S, 0.01-0.2% of B, 3-8% of Ni, 0.1-0.15% of Ti, and the balance of Fe. Boron can be utilized with iron to form a high-rigidity iron-boron compound, so as to facilitate improvement of the roller abrasive resistance; aluminum is non-carbide and utilized with boride to form an element which is mainly dissolved in a matrix, so as to improve the high-temperature rigidity and the high-temperature wear resistance of the matrix; aluminum is good in high-temperature oxidation resistance, so as to facilitate improvement of the processability of the as-cast condition roller; the as-cast condition roller is not required to be annealed, but can be quickly cut and machined; the prepared boron-antimony alloy roller material is good in abrasive resistance, casting property and thermal fatigue property, long in service life and low in cost.

Description

technical field [0001] The invention relates to the field of roll material production, in particular to a method for preparing a boron-antimony alloy roll material. Background technique [0002] The roller is the central part of the wire rod machine, and it is the main tool for making the gadolinium-made parts and making the metal plastically deformed. The roll has a large working load, bears a lot of gadolinium pressure and torsional moment, and has a strong impact load and a large inertial force; in addition, the working environment of the roll is harsh, it has to withstand high temperature, and there is cooling water, It is working under the combination of cold and heat, and the wear is serious. Steel rolls have high tensile strength and toughness, and are widely used in blanking mills or blooming mills with high rolling temperature and heavy rolling load, and can also be used as backup rolls. According to its chemical composition and heat treatment process, the alloy c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04C21D6/00B23P15/00B21B27/00
Inventor 李大志
Owner WUHU JINLONG MOLD FORGING
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