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Vanadium nitride alloy production technology

A vanadium nitride alloy and production process technology, applied in the field of metallurgy, can solve problems such as power consumption, energy consumption, environmental pollution, etc., and achieve the effects of reducing power consumption, production process control, and high production efficiency

Inactive Publication Date: 2015-06-10
西峡县中嘉合金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above technical solutions, solvent heat treatment is required, the solvent waste liquid pollutes the environment, calcination requires additional power consumption, and the excess oxygen-free organic nitrogen compounds need to be recovered, which increases the process steps and further consumes energy, which is not conducive to energy conservation and environmental protection.
There is currently no self-propagating technology applied to the production of vanadium nitride

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A vanadium nitride alloy production process, the steps are:

[0012] (1) Crush the ferrovanadium and combustion accelerant into 100 meshes, and mix them in a ratio of 20:1;

[0013] (2) Put the mixed raw materials in step (1) into the reactor, vacuumize to -0.1 MPa, then fill the reactor with nitrogen to a pressure of 0.3 MPa, and seal the reactor;

[0014] (3) Use the electronic ignition device to ignite the material and nitrogen for self-propagating reaction. During the reaction process, the pressure in the kettle is monitored through the pressure valve. When the pressure is lower than 0.2 MPa, nitrogen is introduced, and when the pressure is higher than 0.3 MPa, the pressure reducing valve is opened to maintain The pressure inside the kettle is between 0.2 and 0.3 MPa;

[0015] (4) It takes about 3 hours from the start of the reaction to the time when the reaction kettle is released. After the pressure in the reactor no longer changes, gradually reduce the pressure...

Embodiment 2

[0021] A vanadium nitride alloy production process, the steps are:

[0022] (1) Grinding ferrovanadium and combustion accelerant into 150 mesh and mixing them in a ratio of 20:1;

[0023] (2) Put the mixed raw materials in step (1) into the reactor, vacuumize to -0.1 MPa, then fill the reactor with nitrogen to a pressure of 0.3 MPa, and seal the reactor;

[0024] (3) Use the electronic ignition device to ignite the material and nitrogen for self-propagating reaction. During the reaction process, the pressure in the kettle is monitored through the pressure valve. When the pressure is lower than 0.2 MPa, nitrogen is introduced, and when the pressure is higher than 0.3 MPa, the pressure reducing valve is opened to maintain The pressure inside the kettle is between 0.2 and 0.3 MPa;

[0025] (4) It takes about 2.5 hours from the beginning of the reaction to the time when the pressure in the reactor is no longer changed, then gradually reduce the pressure in the reactor to normal p...

Embodiment 3

[0031] A vanadium nitride alloy production process, the steps are:

[0032] (1) Crush the ferrovanadium and combustion accelerant into 200 meshes, and mix them at a ratio of 20:1;

[0033] (2) Put the mixed raw materials in step (1) into the reactor, vacuumize to -0.1 MPa, then fill the reactor with nitrogen to a pressure of 0.3 MPa, and seal the reactor;

[0034] (3) Use the electronic ignition device to ignite the material and nitrogen for self-propagating reaction. During the reaction process, the pressure in the kettle is monitored through the pressure valve. When the pressure is lower than 0.2 MPa, nitrogen is introduced, and when the pressure is higher than 0.3 MPa, the pressure reducing valve is opened to maintain The pressure inside the kettle is between 0.2 and 0.3 MPa;

[0035] (4) It takes about 2 hours from the start of the reaction to the time when the reaction kettle is released. After the pressure in the reactor no longer changes, gradually reduce the pressur...

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PUM

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Abstract

The invention discloses a vanadium nitride alloy production technology which comprises the following steps: (1) crushing vanadium iron and combustion improver into 100-200 meshes, and mixing according to a ratio of 20:1; (2) placing the raw materials mixed in the step (1) in a reaction kettle, vacuumizing to -0.1 mPa, then filling nitrogen gas to 0.3 mPa, and closing the reaction kettle; (3) igniting the materials through an electronic ignition device to perform self-propagating reaction with the nitrogen gas, monitoring the pressure in the kettle through a pressure valve in the reaction process, and keeping the pressure in the kettle at 0.2-0.3 mPa; and (4) ensuring that the time from the start of the reaction to discharge is about 2-3 hours, gradually decreasing the pressure in the kettle to normal pressure after the pressure in the kettle does not change any more, then cooling to 200 DEG C, and discharging from the reaction kettle. Further, the combustion improver in the step (1) is Mg powder. According to the invention, the vanadium nitride alloy production technology is energy-saving and environment-friendly, and greatly lowers the consumption of electric energy; the waste gas is the excessive nitrogen gas in the reaction kettle, dose not pollute the environment and can be directly exhausted; and the production process is easy to control and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a vanadium nitride alloy production process. Background technique [0002] Vanadium nitride, also known as vanadium nitrogen alloy, is a new alloy additive that can replace ferrovanadium for the production of microalloyed steel. The addition of vanadium nitride to steel can improve the comprehensive mechanical properties of steel such as strength, toughness, ductility and thermal fatigue resistance, and make the steel have good weldability. When the same strength is achieved, the addition of vanadium nitride saves 30-40% of the amount of vanadium added, thereby reducing the cost. Vanadium nitrogen alloys can be used in structural steel, tool steel, pipe steel, steel bars and cast iron. The application of vanadium-nitrogen alloys in high-strength low-alloy steels can effectively micro-alloy vanadium and nitrogen at the same time, promote the precipitation of carbon, vanad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/00C22C27/02
Inventor 石民安石文安石拓张冠运
Owner 西峡县中嘉合金材料有限公司