Production method of vanadium nitrogen alloy

A technology of vanadium nitrogen alloy and production method, applied in the field of metal additives, can solve the problems of unstable product quality, large fluctuation of product quality, difficult control of high temperature, etc., and achieve the effects of avoiding product failure, stable product quality and cost saving.

Inactive Publication Date: 2017-05-31
HUNAN HONGYUAN RARE METAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes an improved method for producing Vanadium (V) oxynitride(NbON2) compound that contains greater amount of vanadic acid compared to existing methods due to its increased specific gravity and volume capacity at room temperatures. Additionally, this new composition also includes certain elements like molybdenum or tungsten instead of vanadinite, resulting in better performance characteristics such as strength retention over aggressiveness testing environments. Overall, these technical improvements lead to lower manufacturing costs while ensuring consistently good results on products made from them.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the manufacturing of vanadic acid-based steels with improved properties while reducing costs due to increased yields or stability during storage over long periods without requiring expensive specialized facilities.

Method used

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  • Production method of vanadium nitrogen alloy

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Experimental program
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Effect test

Embodiment 1

[0019] A production method of vanadium nitrogen alloy, the steps of the method are as follows:

[0020] a) Stir and mix the powdered vanadium-containing compound, carbonaceous reducing agent, binder and fluoride mineralizer evenly, and press to form a regular mixed billet, wherein the weight ratio of each component is:

[0021] The vanadium-containing compound uses 139 parts of vanadium pentoxide; the carbonaceous reducing agent uses 44 parts of graphite powder; the binder uses 14 parts of dextrin aqueous solution; the fluoride mineralizer uses 5 parts of sodium fluoride;

[0022] b) Put the obtained mixed blank into a heat-resistant stainless steel container under the protection of nitrogen atmosphere for carbonization reaction pretreatment to obtain a pretreated product, wherein the temperature of the carbonization reaction in the heat-resistant stainless steel container is kept at 590 ° C, and the carbonization reaction time is 3 hours;

[0023] c) Put the pretreated product

Embodiment 2

[0029] A production method of vanadium nitrogen alloy, the steps of the method are as follows:

[0030] a) Stir and mix the powdered vanadium-containing compound, carbonaceous reducing agent, binder and fluoride mineralizer evenly, and press to form a regular mixed billet, wherein the weight ratio of each component is:

[0031] The vanadium-containing compound uses 145 parts of ammonium metavanadate; the carbonaceous reducing agent uses 49 parts of carbon black powder; the binder uses 19 parts of starch aqueous solution; the fluoride mineralizer uses 1 part of potassium fluoride;

[0032] b) Put the obtained mixed blank into a heat-resistant stainless steel container under the protection of nitrogen atmosphere for carbonization reaction pretreatment to obtain a pretreated product, wherein the temperature of the carbonization reaction in the heat-resistant stainless steel container is kept at 775°C, and the carbonization reaction time is 9 hours;

[0033] c) Put the pretreated pr

Embodiment 3

[0039] A production method of vanadium nitrogen alloy, the steps of the method are as follows:

[0040] a) Stir and mix the powdered vanadium-containing compound, carbonaceous reducing agent, binder and fluoride mineralizer evenly, and press to form a regular mixed billet, wherein the weight ratio of each component is:

[0041] The vanadium-containing compound adopts 142 parts of vanadium pentoxide; the carbonaceous reducing agent adopts 47 parts of a mixture of graphite powder and carbon black powder; the binder adopts 16 parts of dextrin aqueous solution; the fluoride mineralizer adopts 4 parts of sodium fluoride;

[0042] b) Put the obtained mixed blank into a heat-resistant stainless steel container protected by a nitrogen atmosphere for carbonization reaction pretreatment to obtain a pretreated product, wherein the temperature of the carbonization reaction in the heat-resistant stainless steel container is kept at 650°C, and the carbonization reaction time is 5 hours;

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Abstract

The invention discloses a production method of a vanadium-nitrogen alloy, which comprises the following steps of: uniformly stirring and mixing a powdery vanadium-containing compound, a carbon reducing agent, a binder and a fluoride mineralizer; and performing compression moulding to obtain a regular mixture blank, wherein 138-146 parts of vanadium-containing compound, 43-49 parts of carbon reducing agent, 13-20 parts of binder and 1-5 parts of fluoride mineralizer by weight are mixed; putting the obtained mixture blank into a heat-resistant stainless steel container under the protection of nitrogen atmosphere and performing carbonization reaction pretreatment to obtain a pretreated product; putting the pretreated product into a resistance sintering furnace under the protection of argon or nitrogen atmosphere and performing further carbonization reaction treatment to obtain a treated product; putting the treated product into a nitriding furnace in nitrogen atmosphere and performing nitriding reaction treatment; and cooling and discharging to obtain a product of vanadium-nitrogen alloy. The method disclosed by the invention has a simple structure and short reaction time, and realizes high apparent density, stable quality and high nitrogen content of the product.

Description

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Claims

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Application Information

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Owner HUNAN HONGYUAN RARE METAL MATERIALS
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