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Cobalt-based cobalt-boron intermediate alloy and preparation method thereof

A master alloy, cobalt-based cobalt-boron technology, which is applied to non-ferrous-based special cobalt-based cobalt-boron master alloys, cobalt-based cobalt-boron master alloys and their preparation fields, to achieve the effects of saving electric energy, large pollution, and reducing costs

Active Publication Date: 2011-04-13
METALINK SPECIAL ALLOYS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it is difficult to add it directly during the smelting process, and only when it is added in an alloy state can there be a higher yield

Method used

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  • Cobalt-based cobalt-boron intermediate alloy and preparation method thereof
  • Cobalt-based cobalt-boron intermediate alloy and preparation method thereof
  • Cobalt-based cobalt-boron intermediate alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: The product quantity is 20kg level.

[0032] (1) Testing of raw materials used in smelting cobalt-boron master alloys:

[0033] a. Cobalt oxide Co 2 o 3 99.852%, Ni<0.01%, Si<0.016%, Al 0.014%, Fe 0.04%; C 0.01%, S 0.057%.

[0034] b. Boric anhydride: containing B 2 o 3 98.5%, sulfate 0.02%, heavy metal 0.005%, silicon and alkali metal 0.1%.

[0035] c. Aluminum particles: Al 99%, Fe 0.3%, Si 0.02%.

[0036] d. Aluminum-magnesium alloy: Al 39.65%, Mg 60.28%, Si 0.01%, S 0.014%, Fe 0.06%, C 0.009%.

[0037] e. Lime: CaO 81.49%, SiO 2 10%.

[0038] f. Fluorite: CaF 2 99.13%, SiO 2 0.62%, P 0.012%.

[0039] g. Sodium nitrate: NaNO 3 98.5%.

[0040] (2) Ingredients preset:

[0041] a. Refined product: Contains 80% Co, 18% B, and the rest is impurities.

[0042] b. The dosage of lime is 13% of the total amount of boric anhydride.

[0043] c. The dosage of fluorite is 8% of the total amount of boric anhydride.

[0044] d. The reducing agent is a...

Embodiment 2

[0060] Embodiment 2, product quantity is 50kg level

[0061] (1) Detection of main raw materials and auxiliary materials used in smelting cobalt-based cobalt-boron master alloys:

[0062] a. Cobalt oxide Co 2 o 3 99.767%, Ni<0.006%, Si<0.09%, Al 0.005%, Fe 0.10%; C 0.03%, S 0.002%.

[0063] b, boric anhydride (B 2 o 3 ): Contains B 2 o 3 98.5%, sulfate 0.02%, heavy metal 0.005%, silicon and alkali metal 0.10%.

[0064] c. Aluminum particles: Al 99%, Fe 0.3%, Si 0.02%.

[0065] d. Aluminum-magnesium alloy: Al 59.93%, Mg 39.84%, Si 0.03%, S 0.014%, Fe 0.31%, C 0.009%.

[0066] e. Lime: CaO 92%, SiO 2 5.0%.

[0067] f. Fluorite: CaF 2 99.13%, SiO 2 0.62%, P 0.012%.

[0068] g. Sodium nitrate: NaNO 3 98.5%.

[0069] (2) Ingredients preset:

[0070] a. Refining cobalt-boron master alloy products: containing 81% Co, 16% B, and the balance is impurities.

[0071] b. The dosage of lime: CaO accounts for 12% of the total amount of boric anhydride.

[0072] c. Fluorite...

Embodiment 3

[0089] Embodiment 3, product quantity is 70kg level

[0090] (1) Detection of main raw materials and auxiliary materials used in smelting cobalt-based cobalt-boron master alloys:

[0091] a. Cobalt oxide Co 2 o 3 99.836%, Ni<0.01%, Si<0.016%, Al 0.014%, Fe 0.048%; C 0.019%, S 0.057%.

[0092] b, boric anhydride (B 2 o 3 ): Contains B 2 o 3 98.5%, sulfate 0.02%, heavy metal 0.005%, silicon and alkali metal 0.10%.

[0093] c. Aluminum particles: Al 99%, Fe 0.3%, Si 0.02%.

[0094] d. Aluminum-magnesium alloy: Al 39.65%, Mg 60.28%, Si 0.01%, S 0.014%, Fe 0.06%, C 0.009%.

[0095] e. Lime: CaO 81.49%, SiO 2 10%.

[0096] f. Fluorite: Contains CaF 2 99.13%, SiO 2 0.62%, P 0.012%.

[0097] g. Sodium nitrate: containing NaNO 3 98.5%.

[0098] (2) Ingredients preset:

[0099] a. Refining cobalt-boron master alloy products: the product contains 80% Co, 19% B, and the balance is impurities.

[0100] b. The dosage of lime: CaO accounts for 13% of the total amount of bori...

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Abstract

The invention discloses a cobalt-based cobalt-boron intermediate alloy and a preparation method thereof, belonging to the technical field of cobalt-based alloy. The cobalt-based cobalt-boron intermediate alloy comprises the following components by weight percent: 76.49-81.50% of cobalt, 15.75-20.01% of boron, 0.31-0.84% of Fe, 1.0-1.76% of Al, 0.009-0.012% of C, 0.0034-0.006% of S, 0.025-0.029% of P, 0.70-0.77% of Si, and the balance of Mg. The invention has the advantages that an oxide of cobalt is directly taken as a raw material instead of metal Co, electricity is not used during smelting, and the electricity energy is saved; and an oxide of boron is taken as a raw material instead of metal boron powder, so that environmental pollution is not caused, the operation is easy and the alloy is easy to store.

Description

technical field [0001] The invention belongs to the technical field of cobalt-based alloys, and in particular provides a cobalt-based cobalt-boron master alloy and a preparation method thereof, which is a non-ferrous special cobalt-based cobalt-boron master alloy. technical background [0002] With the vigorous development of my country's metallurgical industry, the requirements for alloying agents-special alloys in the iron and steel metallurgical industry are getting higher and higher. In order to improve the quality of special master alloys and reduce raw material costs and smelting costs. The invention relates to a method for preparing special cobalt-based cobalt-boron master alloy by thermally reducing cobalt oxide and boron oxide by using metal aluminum and aluminum-magnesium alloy as reducing agent. The method equipment and process are simple and flexible. It satisfies the production of non-ferrous-based metal materials, cobalt-based amorphous materials and microcrys...

Claims

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Application Information

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IPC IPC(8): C22B5/04C22C1/00C22C1/03C22C19/07
Inventor 陈道华马步洋王浩冰蔡可金贾明赵锡群
Owner METALINK SPECIAL ALLOYS CORP
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