阅读说明：本技术 一种提高金属材料散热性能的方法 (Method for improving heat dissipation performance of metal material ) 是由 刘政明 黄惠明 于 2021-07-06 设计创作，主要内容包括：本发明公开了一种提高金属材料散热性能的方法,包括以下步骤：根据使用需求选取合适的金属成品工件,然后将金属成品工件放置在加工炉内部,本发明的有益效果是：通过对金属成品工件进行的高温真空加压处理,可以使金属成品工件内部的晶体组织达到或接近平衡状态,而二次加热冷却,可以使金属成品工件内部的晶体进行细化,从而对金属成品工件内部晶体的排列结构进行优化和强化,可以使金属成品工件具有更好的散热效果,从而降低金属成品工件热疲劳的现象,通过循环加热保温处理,可以提高金属成品工件的韧性,从而使得金属成品工件具有更好的使用效果以及更高的使用寿命,而且处理完的成品工件不会改变原来的颜色,同时还可以提高其外壁的光滑度。(The invention discloses a method for improving the heat dissipation performance of a metal material, which comprises the following steps: the method has the beneficial effects that a proper metal finished workpiece is selected according to the use requirement, and then the metal finished workpiece is placed in the processing furnace, and the method has the following beneficial effects: through the high-temperature vacuum pressurization treatment to the metal finished product workpiece, the crystal structure inside the metal finished product workpiece can reach or approach a balanced state, and secondary heating and cooling can be realized, the crystal inside the metal finished product workpiece can be refined, the arrangement structure of the crystal inside the metal finished product workpiece is optimized and strengthened, the metal finished product workpiece can have a better heat dissipation effect, the phenomenon of thermal fatigue of the metal finished product workpiece is reduced, through cyclic heating and heat preservation treatment, the toughness of the metal finished product workpiece can be improved, the metal finished product workpiece can have a better use effect and a longer service life, the original color of the treated finished product workpiece cannot be changed, and meanwhile, the smoothness of the outer wall of the treated finished product workpiece can be improved.)

1. A method for improving the heat dissipation performance of a metal material is characterized by comprising the following steps:

s1, selecting a proper metal finished workpiece according to use requirements, placing the metal finished workpiece in a processing furnace, vacuumizing the processing furnace, heating the processing furnace to a preset temperature after the interior of the processing furnace is in a vacuum state, performing heat preservation treatment, pressurizing the interior of the processing furnace in the heat preservation treatment process, opening the processing furnace after heat preservation is finished, and standing for 24 hours to slowly cool the metal finished workpiece to room temperature;

s2, taking the cooled metal finished workpiece out of the processing furnace, then heating the metal finished workpiece to a certain temperature again, and cooling at room temperature;

s3, placing the finished metal workpiece processed by the S2 in the processing furnace again, heating to 830 +/-10 ℃, preserving heat for 4 hours, and then cooling again at room temperature;

s4, placing the cooled metal finished workpiece in a heating furnace, heating to 200 +/-10 ℃, preserving heat at 200 ℃, cooling, heating the metal finished workpiece to 250 +/-10 ℃ for the second time after cooling, preserving heat at 250 ℃, cooling for the second time, heating the metal finished workpiece to 300 +/-10 ℃ again after cooling, preserving heat at 300 ℃, and cooling again.

2. The method of claim 1, wherein the step of increasing the heat dissipation of the metal material comprises: the heating temperature of the processing furnace in the step S1 is 950 +/-10 ℃.

3. The method of claim 1, wherein the step of increasing the heat dissipation of the metal material comprises: the time of the heat-retaining process in the step S1 varies depending on the size of the finished metal workpiece.

4. The method of claim 1, wherein the step of increasing the heat dissipation of the metal material comprises: the pressure to be pressurized into the processing furnace in the step S1 is 8.5-9.5 MPa.

5. The method of claim 1, wherein the step of increasing the heat dissipation of the metal material comprises: the temperature for heating the metal finished workpiece in the step S2 is 750 +/-10 ℃.

6. The method of claim 1, wherein the step of increasing the heat dissipation of the metal material comprises: and in the step S4, the heat preservation time of the metal finished workpiece is 90 minutes.

Technical Field

The invention relates to the technical field of metal finished workpieces, in particular to a method for improving the heat dissipation performance of a metal material.

Background

The metal finished workpiece is a substance with the properties of luster, high ductility, easy electric conduction, heat conduction and the like, most of the elements of the metal finished workpiece exist in the nature in a combined state, because the chemical properties of most of the metal finished workpieces are more active, only a very few of the metal finished workpieces such as gold, silver and the like exist in a free state, the metal finished workpieces widely exist in the nature, are widely applied in life, are substances which are very important and most applied in modern industry, and in the field of turning, the workpieces such as turning tool bits and the like need to bear higher impact force and heat when in use, so that the workpieces have higher hardness and quick heat dissipation capability.

The existing metal finished workpiece is not refined in the crystal inside the metal finished workpiece during manufacturing, so that crystal particles inside the metal finished workpiece are rough, hardness, toughness and heat dissipation effects of the metal finished workpiece are poor, and when a machined part manufactured by the metal finished workpiece is used, the phenomena of overheating fatigue, insufficient toughness and hardness and fracture of the metal finished workpiece easily occur, so that the service life of the workpiece is influenced.

Disclosure of Invention

The present invention is directed to a method for improving heat dissipation of a metal material, so as to solve the problems of the background art.

In order to achieve the above object, the present invention provides a method for improving heat dissipation performance of a metal material, which comprises the following steps:

s1, selecting a proper metal finished workpiece according to use requirements, placing the metal finished workpiece in a processing furnace, vacuumizing the processing furnace, heating the processing furnace to a preset temperature after the interior of the processing furnace is in a vacuum state, performing heat preservation treatment, pressurizing the interior of the processing furnace in the heat preservation treatment process, opening the processing furnace after heat preservation is finished, and standing for 24 hours to slowly cool the metal finished workpiece to room temperature;

s2, taking the cooled metal finished workpiece out of the processing furnace, then heating the metal finished workpiece to a certain temperature again, and cooling at room temperature;

s3, placing the finished metal workpiece processed by the S2 in the processing furnace again, heating to 830 +/-10 ℃, preserving heat for 4 hours, and then cooling again at room temperature;

s4, placing the cooled metal finished workpiece in a heating furnace, heating to 200 +/-10 ℃, preserving heat at 200 ℃, cooling, heating the metal finished workpiece to 250 +/-10 ℃ for the second time after cooling, preserving heat at 250 ℃, cooling for the second time, heating the metal finished workpiece to 300 +/-10 ℃ again after cooling, preserving heat at 300 ℃, and cooling again.

Preferably, the heating temperature of the processing furnace in the step S1 is 950 ± 10 ℃.

Preferably, the time for the heat-preserving process in the step S1 is changed according to the size of the finished metal workpiece.

Preferably, the pressure applied to the processing furnace in the step S1 is 8.5 to 9.5 mpa.

Preferably, the temperature for heating the metal product workpiece in the step S2 is 750 ± 10 ℃.

Preferably, the heat preservation time of the metal product workpiece in the step S4 is 90 minutes.

Compared with the prior art, the invention has the beneficial effects that: through the high-temperature vacuum pressurization treatment on the finished metal workpiece, the crystal structure inside the finished metal workpiece can reach or approach a balanced state, and secondary heating and cooling are performed, crystals inside the finished metal workpiece can be refined, the arrangement structure of the crystals inside the finished metal workpiece is optimized and strengthened, the finished metal workpiece can have a better heat dissipation effect, the phenomenon of thermal fatigue of the finished metal workpiece is reduced, the hardness of the finished metal workpiece can be improved through heating, oil immersion and cooling, the toughness of the finished metal workpiece can be improved through cyclic heating and heat preservation treatment, the finished metal workpiece can have a better use effect and a longer service life, the original color of the finished metal workpiece cannot be changed, and meanwhile, the smoothness of the outer wall of the finished metal workpiece can be improved.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that: a method for improving the heat dissipation performance of a metal material comprises the following steps:

s1, selecting a proper metal finished workpiece according to use requirements, placing the metal finished workpiece in a processing furnace, vacuumizing the processing furnace, heating the processing furnace to a preset temperature after the interior of the processing furnace is in a vacuum state, performing heat preservation treatment, pressurizing the interior of the processing furnace in the heat preservation treatment process, opening the processing furnace after heat preservation is finished, and standing for 24 hours to slowly cool the metal finished workpiece to room temperature;

s2, taking the cooled metal finished workpiece out of the processing furnace, then heating the metal finished workpiece to a certain temperature again, and cooling at room temperature;

s3, placing the finished metal workpiece processed by the S2 in the processing furnace again, heating to 830 +/-10 ℃, preserving heat for 4 hours, and then cooling again at room temperature;

s4, placing the cooled metal finished workpiece in a heating furnace, heating to 200 +/-10 ℃, preserving heat at 200 ℃, cooling, heating the metal finished workpiece to 250 +/-10 ℃ for the second time after cooling, preserving heat at 250 ℃, cooling for the second time, heating the metal finished workpiece to 300 +/-10 ℃ again after cooling, preserving heat at 300 ℃, and cooling again.

Wherein the heating temperature of the processing furnace in the step S1 is 950 +/-10 ℃.

Wherein the time of the heat-preserving process in the step S1 is changed according to the size of the finished metal workpiece.

Wherein the pressure applied to the processing furnace in the step S1 is 8.5-9.5 MPa.

Wherein the temperature for heating the metal finished workpiece in the step S2 is 750 +/-10 ℃.

Wherein, the heat preservation time of the metal finished workpiece in the step S4 is 90 minutes.

Embodiment 1, a method for improving heat dissipation performance of a metal material, comprising the steps of:

s1, selecting a proper metal finished workpiece according to use requirements, placing the metal finished workpiece in a processing furnace, vacuumizing the processing furnace, heating the processing furnace to 950 +/-10 ℃ after the interior of the processing furnace is in a vacuum state, performing heat preservation according to the size of the metal finished workpiece, pressurizing the interior of the processing furnace in the heat preservation process, wherein the pressurizing pressure is 8.5-9.5 MPa, so that the crystal structure in the metal finished workpiece reaches or approaches a balanced state, opening the processing furnace after heat preservation is finished, and standing for 24 hours to slowly cool the metal finished workpiece to room temperature;

s2, taking the cooled metal finished workpiece out of the processing furnace, then heating the metal finished workpiece to 750 +/-10 ℃ again, and cooling at room temperature to enable crystals in the metal finished workpiece to be finer;

s3, placing the finished metal workpiece processed by the S2 in the processing furnace again, heating to 830 +/-10 ℃, preserving heat for 4 hours, and then cooling again at room temperature;

s4, placing the cooled metal finished product workpiece in a heating furnace, heating to 200 +/-10 ℃, preserving heat for 90 minutes at the temperature of 200 ℃, then cooling, heating the metal finished product workpiece to 250 +/-10 ℃ for the second time after cooling, preserving heat for 90 minutes at the temperature of 250 ℃, then cooling for the second time, heating the metal finished product workpiece to 300 +/-10 ℃ again after cooling for the second time, preserving heat for 90 minutes at the temperature of 300 ℃, and then cooling again.

Embodiment 2, a method for improving heat dissipation performance of a metal material, comprising the steps of:

s1, selecting a proper metal finished workpiece according to use requirements, placing the metal finished workpiece in a processing furnace, vacuumizing the processing furnace, heating the processing furnace to 950 +/-10 ℃ after the interior of the processing furnace is in a vacuum state, performing heat preservation according to the size of the metal finished workpiece, pressurizing the interior of the processing furnace in the heat preservation process, wherein the pressurizing pressure is 8.5-9.5 MPa, so that the crystal structure in the metal finished workpiece reaches or approaches a balanced state, opening the processing furnace after heat preservation is finished, and standing for 24 hours to slowly cool the metal finished workpiece to room temperature;

s2, taking the cooled metal finished workpiece out of the processing furnace, then heating the metal finished workpiece to 750 +/-10 ℃ again, and cooling at room temperature to enable crystals in the metal finished workpiece to be finer;

s3, placing the finished metal workpiece processed by the S2 in the processing furnace again, heating to 830 +/-10 ℃, preserving heat for 4 hours, and then cooling again at room temperature;

s4, placing the cooled metal finished product workpiece in a heating furnace, heating to 200 +/-10 ℃, preserving heat for 90 minutes at the temperature of 200 ℃, then cooling, heating the metal finished product workpiece to 250 +/-10 ℃ for the second time after cooling, preserving heat for 90 minutes at the temperature of 250 ℃, then cooling for the second time, heating the metal finished product workpiece to 300 +/-10 ℃ again after cooling for the second time, preserving heat for 90 minutes at the temperature of 300 ℃, and then cooling again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.