阅读说明：本技术 一种金属密度冶炼方法 (Metal density smelting method ) 是由 黄彩 黄靖 谭磊 黄颖 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种金属密度冶炼方法,方法的步骤中含有：S1：加热金属,使金属气化形成气态金属；S2：对气态金属进行压缩,并在压缩过程中保证气态金属始终为气态；S3：对压缩后的气态金属进行冷却,使气态金属变为固态金属；S4：对冷却后的固态金属进行淬火。本发明能够大幅提高金属的性能,譬如屈服强度等。(The invention discloses a metal density smelting method, which comprises the following steps: s1: heating the metal to vaporize the metal to form a gaseous metal; s2: compressing the gaseous metal and ensuring that the gaseous metal is always in a gaseous state in the compression process; s3: cooling the compressed gaseous metal to change the gaseous metal into solid metal; s4: and quenching the cooled solid metal. The invention can greatly improve the metal performance, such as yield strength and the like.)

1. A metal density smelting method is characterized by comprising the following steps:

s1: heating the metal to vaporize the metal to form a gaseous metal;

s2: compressing the gaseous metal and ensuring that the gaseous metal is always in a gaseous state in the compression process;

s3: cooling the compressed gaseous metal to change the gaseous metal into solid metal;

s4: and quenching the cooled solid metal.

2. The metal density smelting process of claim 1,

step S1 specifically includes: the metal is put into a vacuum melting furnace and heated to a temperature of more than 2750 ℃ to gasify the metal.

3. The metal density smelting process of claim 1,

in the compression process, the gaseous metal is ensured to be always in a gaseous state by continuously heating the gaseous metal.

4. The metal density smelting process of claim 1,

the metal is steel or copper or lithium.

5. The metal density smelting process of claim 1,

selecting a corresponding cooling temperature and a corresponding quenching temperature according to the volume of the gaseous metal compressed in the step S2 to achieve a corresponding required metal property; the metal properties include the yield strength of the metal.

6. The metal density smelting process of claim 5,

gaseous metals increase the yield strength of the metal by simultaneously reducing the volume after compression, increasing the cooling temperature, and increasing the quenching temperature.

7. The metal density smelting process of claim 5,

the metal is steel;

compressing 1 volume part of gaseous metal into 0.9-0.99 volume part of gaseous metal, cooling at 800-1200 ℃, quenching at 25-35 ℃, and obtaining metal with yield strength of at least 2000 MPa.

8. The metal density smelting process of claim 7,

the yield strength of the obtained metal is increased by at least 1000MPa for every 0.1 volume part of the volume of the gaseous metal, every 200 ℃ increase of the cooling temperature and every 10 ℃ increase of the quenching temperature.

9. The metal density smelting process of claim 5,

the metal is steel;

compressing 1 volume part of gaseous metal into 0.8-0.89 volume part of gaseous metal, cooling at 1000-1400 ℃, quenching at 35-45 ℃, and obtaining metal with yield strength of at least 3000 MPa.

10. The metal density smelting process of claim 5,

the metal is steel;

compressing 1 volume part of gaseous metal into 0.7-0.79 volume part of gaseous metal, cooling at 1200-1600 ℃, quenching at 45-55 ℃, and obtaining metal with yield strength of at least 4000 MPa.

Technical Field

The invention relates to a metal density smelting method.

Background

At present, in various smelting technologies in the prior art, smelting is basically carried out in a liquid state or a solid state of metal, which increases the performance of the metal to some extent, but the increase range is small, and the requirements of current social development, such as the yield strength of steel, cannot be met. The yield strength of single steel produced by Shanghai Bao steel is 1100 MPa at most, the yield strength of alloy materials of steel and titanium is 2200 MPa at most, although the yield strength of the alloy materials of steel is increased, titanium element needs to be added, the process is complex, and the cost is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a metal density smelting method which can greatly improve the properties of metal, such as yield strength and the like.

In order to solve the technical problems, the technical scheme of the invention is as follows: a metal density smelting method comprises the following steps:

s1: heating the metal to vaporize the metal to form a gaseous metal;

s2: compressing the gaseous metal and ensuring that the gaseous metal is always in a gaseous state in the compression process;

s3: cooling the compressed gaseous metal to change the gaseous metal into solid metal;

s4: and quenching the cooled solid metal.

Further, step S1 specifically includes: the metal is put into a vacuum melting furnace and heated to a temperature of more than 2750 ℃ to gasify the metal.

Further, in the compression process, the gaseous metal is ensured to be gaseous all the time by continuously heating the gaseous metal.

Further, the metal is steel or copper or lithium.

Further, the corresponding cooling temperature and the corresponding quenching temperature are selected according to the volume of the gaseous metal compressed in the step S2 to achieve the corresponding required metal performance; the metal properties include the yield strength of the metal.

Further, the gaseous metal increases the yield strength of the metal by simultaneously reducing the volume after compression, increasing the cooling temperature, and increasing the quenching temperature.

Further, the metal is steel;

compressing 1 volume part of gaseous metal into 0.9-0.99 volume part of gaseous metal, cooling at 800-1200 ℃, quenching at 25-35 ℃, and obtaining metal with yield strength of at least 2000 MPa.

Further, for every 0.1 volume part of the reduction of the volume of the gaseous metal, for every 200 ℃ increase of the cooling temperature, and for every 10 ℃ increase of the quenching temperature, the yield strength of the obtained metal is at least 1000 MPa.

Further, the metal is steel;

compressing 1 volume part of gaseous metal into 0.8-0.89 volume part of gaseous metal, cooling at 1000-1400 ℃, quenching at 35-45 ℃, and obtaining metal with yield strength of at least 3000 MPa.

Further, the metal is steel;

compressing 1 volume part of gaseous metal into 0.7-0.79 volume part of gaseous metal, cooling at 1200-1600 ℃, quenching at 45-55 ℃, and obtaining metal with yield strength of at least 4000 MPa.

After the technical scheme is adopted, the metal is heated to be gasified, the metal smelting state is locked in a gas state, and the defect that the smelting method in the solid state and the liquid state in the prior art cannot break through the metal performance is overcome; in addition, the invention obtains the condition of greatly compressing the volume of the gaseous metal in the gaseous state, and the metal in the gaseous state can be infinitely reduced in volume under strong pressure, so that the basis of infinitely expanding the metal performance is obtained, the cooled gaseous metal is solidified, which is a stable means after the metal performance breaks through the condition, and the metal performance, such as yield strength, melting point, boiling point, conductivity and the like, is finally greatly improved through the combination of the steps; in addition, in the present invention, if it is necessary to increase the yield strength of the metal, it is necessary to reduce the volume of the compressed gaseous metal during compression, and since the required recrystallization temperature of the metal increases due to the reduced volume of the compressed gaseous metal, it is necessary to increase the cooling ambient temperature and increase the quenching temperature to reach the required yield strength of the metal.

Detailed Description

The invention provides a metal density smelting method, and a person skilled in the art can appropriately improve process parameters by referring to the content in the text. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.

A metal density smelting method comprises the following steps:

s1: heating the metal to vaporize the metal to form a gaseous metal;

s2: compressing the gaseous metal and ensuring that the gaseous metal is always in a gaseous state in the compression process;

s3: cooling the compressed gaseous metal to change the gaseous metal into solid metal;

s4: and quenching the cooled solid metal.

Preferably, step S1 is specifically: the metal is put into a vacuum melting furnace and heated to a temperature of more than 2750 ℃ to gasify the metal.

Preferably, the gaseous metal is kept in the gaseous state at all times by continuing to increase the temperature of the gaseous metal during the compression process.

Preferably, the metal includes, but is not limited to, steel or copper or lithium or aluminum.

Preferably, the respective cooling temperature and the respective quenching temperature are selected to achieve the respective required metal properties in accordance with the volume of gaseous metal compressed in step S2; the metal properties include the yield strength of the metal.

Preferably, the gaseous metal increases the yield strength of the metal by simultaneously reducing the volume after compression, increasing the cooling temperature, and increasing the quenching temperature.

For example, when the metal is steel,

compressing 1 volume part of gaseous metal into 0.9-0.99 volume part of gaseous metal, cooling at 800-1200 ℃, quenching at 25-35 ℃, and obtaining metal with yield strength of at least 2000 MPa.

Preferably, for every 0.1 part by volume reduction in the volume of the gaseous metal, for every 200 ℃ increase in the cooling temperature, and for every 10 ℃ increase in the quenching temperature, the yield strength of the resulting metal is at least 1000MPa per increase.

Such as: the first method comprises the following steps: compressing 1 volume part of gaseous metal into 0.8-0.89 volume part of gaseous metal, cooling at 1000-1400 ℃, quenching at 35-45 ℃, and obtaining metal with yield strength of at least 3000 MPa.

And the second method comprises the following steps: compressing 1 volume part of gaseous metal into 0.7-0.79 volume part of gaseous metal, cooling at 1200-1600 ℃, quenching at 45-55 ℃, and obtaining metal with yield strength of at least 4000 MPa.

And the third is that: compressing 1 volume part of gaseous metal into 0.6-0.69 volume part of gaseous metal, cooling to 1400-1800 ℃, quenching to 55-65 ℃, and obtaining metal with yield strength of at least 5000 MPa.

The above is not limited to the first to third types.

In order that the present invention may be more clearly understood, the following detailed description of the present invention is given with reference to specific examples.

Example one

A metal density smelting method comprises the following steps:

s1: putting 1 cubic meter of steel into a vacuum melting furnace, heating to the temperature of more than 2750 ℃, and heating the steel to gasify the steel to form gaseous steel;

s2: compressing the gaseous steel to 0.9 cubic meter, and continuously heating the gaseous steel in the compression process to ensure that the gaseous steel is always gaseous;

s3: cooling the compressed gaseous steel at 1100 ℃ to change the gaseous steel into solid steel;

s4: quenching the cooled solid steel to obtain steel with required performance; wherein the quenching temperature is 30 ℃.

The obtained steel is detected, the yield strength is 2235 MPa, and the design requirement is met.

Example two

A metal density smelting method comprises the following steps:

s1: putting 1 cubic meter of steel into a vacuum melting furnace, heating to the temperature of more than 2750 ℃, and heating the steel to gasify the steel to form gaseous steel;

s2: compressing the gaseous steel to 0.8 cubic meter, and continuously heating the gaseous steel in the compression process to ensure that the gaseous steel is always gaseous;

s3: cooling the compressed gaseous steel at 1300 ℃ to change the gaseous steel into solid steel;

s4: quenching the cooled solid steel to obtain steel with required performance; wherein the quenching temperature is 40 ℃.

The obtained steel is detected, the yield strength is 3340 MPa, and the design requirements are met.

EXAMPLE III

A metal density smelting method comprises the following steps:

s1: putting 1 cubic meter of steel into a vacuum melting furnace, heating to the temperature of more than 2750 ℃, and heating the steel to gasify the steel to form gaseous steel;

s2: compressing the gaseous steel to 0.7 cubic meter, and continuously heating the gaseous steel in the compression process to ensure that the gaseous steel is always gaseous;

s3: cooling the compressed gaseous steel at 1500 ℃ to change the gaseous steel into solid steel;

s4: quenching the cooled solid steel to obtain steel with required performance; wherein the quenching temperature is 50 ℃.

The obtained steel is detected, the yield strength is 4250 MPa, and the design requirement is met.

Example four

A metal density smelting method comprises the following steps:

s1: putting 1 cubic meter of steel into a vacuum melting furnace, heating to the temperature of more than 2750 ℃, and heating the steel to gasify the steel to form gaseous steel;

s2: compressing the gaseous steel to 0.6 cubic meter, and continuously heating the gaseous steel in the compression process to ensure that the gaseous steel is always gaseous;

s3: cooling the compressed gaseous steel at 1700 ℃ to convert the gaseous steel into solid steel;

s4: quenching the cooled solid steel to obtain steel with required performance; wherein the quenching temperature is 60 ℃.

The obtained steel is detected, the yield strength is 5320 MPa, and the design requirement is met.

The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.