阅读说明：本技术 一种检测模具、测量方法及测量装置 (Detection mold, measurement method and measurement device ) 是由 夏焕雄 刘检华 高丰 朱雪东 刘恒著 黄求安 于 2021-01-18 设计创作，主要内容包括：本发明提供一种检测模具、测量方法及测量装置,涉及铸造技术领域,所述检测模具包括：模具本体；加热模块,设置于所述模具本体上,用于加热所述模具本体内所存储材料的温度；冷却模块,设置于所述模具本体上,用于降低所述模具本体内所存储材料的温度；压力调节模块,与所述模具本体的内部腔体连通,通过所述压力调节模块,控制所述内部腔体的压力变化；至少一个温度采集模块,设置于所述内部腔体中,用于采集所述内部腔体中所存储材料的温度。本发明的方案可以检测材料在不同压力下的凝固点,从而控制材料的凝固成型工艺,提高成型质量。(The invention provides a detection mold, a measurement method and a measurement device, which relate to the technical field of casting, and the detection mold comprises: a mold body; the heating module is arranged on the die body and used for heating the temperature of the material stored in the die body; the cooling module is arranged on the die body and used for reducing the temperature of the material stored in the die body; the pressure adjusting module is communicated with the inner cavity of the die body and used for controlling the pressure change of the inner cavity; at least one temperature acquisition module disposed in the internal cavity for acquiring a temperature of a material stored in the internal cavity. The scheme of the invention can detect the solidifying points of the material under different pressures, thereby controlling the solidifying and forming process of the material and improving the forming quality.)

1. An inspection die, comprising:

a mold body;

the cooling module is arranged on the die body and used for reducing the temperature of the material stored in the die body;

the heating module is arranged on the die body and used for increasing the temperature of the material stored in the die body;

the pressure adjusting module is communicated with the inner cavity of the die body and used for controlling the pressure change of the inner cavity;

and the temperature acquisition module is arranged in the internal cavity and is used for acquiring the temperature of the material stored in the internal cavity.

2. The inspection die of claim 1, wherein the die body comprises:

the riser is covered with a flange cover and covers the upper end face of the die body, and the hollow cavity is communicated with the inner cavity;

the flange cover is provided with a first through hole; and a gas pipeline of the pressure regulating module closes the first through hole and is communicated with the interior of the die body through the first through hole.

3. The detection mold according to claim 2, wherein a second through hole is formed in the flange cover, and a connecting line is arranged on the second through hole in a penetrating manner and extends to the inner cavity; the temperature acquisition module is arranged in the inner cavity and is fixedly connected with the connecting wire.

4. The inspection mold as claimed in claim 1, wherein the cooling module is disposed on the mold body and covers the heating module.

5. The inspection tool of claim 1, further comprising:

and the data analysis and control module is arranged outside the die body, is respectively connected with the temperature acquisition module and the pressure regulation module, and is used for acquiring the temperature acquired by the temperature acquisition module and outputting a pressure regulation signal to the pressure regulation module.

6. A method of measuring freezing point using the inspection mold according to any one of claims 1 to 5, comprising:

after a material to be detected is injected into an inner cavity of the die body, inputting a first pressure adjusting signal to the pressure adjusting module, so that the pressure adjusting module controls the pressure of the inner cavity to be a first pressure value;

inputting a first cooling control signal to the cooling module to start the cooling module, and reducing the temperature of the material to be measured until the material is solidified;

acquiring first temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and according to the first temperature data, obtaining the freezing point of the material to be detected under the first pressure value.

7. The method of claim 6, wherein obtaining the freezing point of the material under test at the first pressure value based on the first temperature data comprises:

extracting enthalpy change characteristics of the material to be detected according to the first temperature data;

and acquiring the freezing point of the material to be detected under the first pressure value according to the enthalpy change characteristic.

8. The measurement method according to claim 6, further comprising:

and inputting a first heating control signal to the heating module to start the heating module, and raising the temperature of the solidified material to be detected until the material to be detected is melted into liquid.

9. The measuring method according to claim 8, wherein inputting a first heating control signal to the heating module to activate the heating module, and increasing the temperature of the solidified material to be measured until the material to be measured is melted into a liquid, further comprises:

inputting a second pressure adjusting signal to the pressure adjusting module, so that the pressure adjusting module controls the pressure of the internal cavity to be a second pressure value;

inputting a second cooling control signal to the cooling module to start the cooling module, and reducing the temperature of the material to be measured until the material is solidified;

acquiring second temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and obtaining the freezing point of the material to be detected under the second pressure value according to the second temperature data.

10. A measuring device, comprising:

the pressure adjusting module is used for inputting a first pressure adjusting signal to the pressure adjusting module after a material to be detected is injected into an inner cavity of the die body, so that the pressure adjusting module controls the pressure of the inner cavity to be a first pressure value;

the cooling control module is used for inputting a first cooling control signal to the cooling module to start the cooling module, so that the temperature of the material to be measured is reduced until the material to be measured is solidified;

the temperature acquisition module is used for acquiring first temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and the obtaining result module is used for obtaining the freezing point of the material to be tested under the first pressure value according to the first temperature data.

Technical Field

The invention belongs to the technical field of casting, and particularly relates to a detection mold, a measurement method and a measurement device.

Background

The solidification point is one of the most basic parameters of a material, and refers to the temperature of a crystal substance when the crystal substance is solidified, different crystals have different solidification points, and the influence on the solidification process is very important, and almost all researches on the solidification process and equipment are related to the parameter. The clear understanding of the solidification point and the change law of the material is a key step for improving the solidification quality of the casting. On the other hand, the change of the solidification point of the material is influenced by a plurality of factors such as impurities dissolved in the material, and the most significant factor is the pressure, so that a data relation between the solidification point and the pressure of the material measured by the detection mold is needed.

Disclosure of Invention

The embodiment of the invention aims to provide a detection die, a measurement method and a measurement device, so as to solve the problem of data relation between the pressure and the freezing point of a material in the prior art.

In order to achieve the above object, an embodiment of the present invention provides a detection mold, including:

a mold body;

the cooling module is arranged on the die body and used for reducing the temperature of the material stored in the die body;

the heating module is arranged on the die body and used for increasing the temperature of the material stored in the die body;

the pressure adjusting module is communicated with the inner cavity of the die body and used for controlling the pressure change of the inner cavity;

and the temperature acquisition module is arranged in the internal cavity and is used for acquiring the temperature of the material stored in the internal cavity.

Optionally, the die body comprises:

the riser is covered with a flange cover and covers the upper end face of the die body, and the hollow cavity is communicated with the inner cavity;

the flange cover is provided with a first through hole; and a gas pipeline of the pressure regulating module closes the first through hole and is communicated with the interior of the die body through the first through hole.

Optionally, a second through hole is formed in the flange cover, and a connecting line penetrates through the second through hole and extends to the inner cavity; the temperature acquisition module is arranged in the inner cavity and is fixedly connected with the connecting wire.

Optionally, the cooling module is disposed on the mold body and covers the heating module.

Optionally, the detection mold further includes:

and the data analysis and control module is arranged outside the die body, is respectively connected with the temperature acquisition module and the pressure regulation module, and is used for acquiring the temperature acquired by the temperature acquisition module and outputting a pressure regulation signal to the pressure regulation module.

The embodiment of the invention also provides a method for measuring the freezing point by adopting the detection mould, which comprises the following steps:

after a material to be detected is injected into an inner cavity of the die body, inputting a first pressure adjusting signal to a pressure adjusting module, so that the pressure adjusting module controls the pressure of the inner cavity to be a first pressure value;

inputting a first cooling control signal to a cooling module to start the cooling module, and reducing the temperature of the material to be measured until the material is solidified;

acquiring first temperature data of a temperature acquisition module in the solidification process of the material to be detected;

and according to the first temperature data, obtaining the freezing point of the material to be detected under the first pressure value.

Optionally, obtaining a freezing point of the material to be tested at the first pressure value according to the first temperature data includes:

extracting enthalpy change characteristics of the material to be detected according to the first temperature data;

and acquiring the freezing point of the material to be detected under the first pressure value according to the enthalpy change characteristic.

Optionally, the measurement method further comprises:

and inputting a first heating control signal to the heating module to start the heating module, and raising the temperature of the solidified material to be detected until the material to be detected is melted into liquid.

Optionally, inputting a first heating control signal to the heating module to start the heating module, and increasing the temperature of the solidified material to be measured until the material to be measured is melted into a liquid, further comprising:

inputting a second pressure adjusting signal to the pressure adjusting module, so that the pressure adjusting module controls the pressure of the internal cavity to be a second pressure value;

inputting a second cooling control signal to the cooling module to start the cooling module, and reducing the temperature of the material to be measured until the material is solidified;

acquiring second temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and obtaining the freezing point of the material to be detected under the second pressure value according to the second temperature data.

An embodiment of the present invention further provides a measurement apparatus, including:

the pressure adjusting module is used for inputting a first pressure adjusting signal to the pressure adjusting module after a material to be detected is injected into an inner cavity of the die body, so that the pressure adjusting module controls the pressure of the inner cavity to be a first pressure value;

the cooling control module is used for inputting a first cooling control signal to the cooling module to start the cooling module, so that the temperature of the material to be measured is reduced until the material to be measured is solidified;

the temperature acquisition module is used for acquiring first temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and the obtaining result module is used for obtaining the freezing point of the material to be tested under the first pressure value according to the first temperature data.

The technical scheme of the invention at least has the following beneficial effects:

in the above scheme, the detection mold utilizes the pressure regulating module to control the pressure of the inner cavity of the mold body and controls the cooling module to reduce the temperature of the material stored in the mold body, the material is solidified from liquid to solid, and the temperature collecting module collects the temperature of the material in the solidification process, so that the solidification point of the material under the current pressure is obtained according to the temperature; after the material is completely solidified, the cooling module is closed, the heating module is controlled to raise the temperature of the material stored in the die body, the material is made to be molten into liquid again, the pressure adjusting module is controlled to change the pressure, and the temperature acquisition module acquires the temperature, so that the solidifying points of the material under different pressures are obtained, the solidifying and forming process of the material is controlled, and the forming quality is improved.

Drawings

FIG. 1 is a schematic structural diagram of a detection mold according to an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of a detection mold according to an embodiment of the present invention;

FIG. 3 is a third schematic structural diagram of a detection mold according to an embodiment of the present invention;

FIG. 4 is a fourth schematic structural diagram of a detection mold according to an embodiment of the present invention;

FIG. 5 is a flow chart of a measurement method according to an embodiment of the present invention;

fig. 6 is a schematic view of a measuring apparatus according to an embodiment of the present invention.

1-a mould body; 11-an internal cavity; 12-a central control cavity; 13-a riser; 14-a flange cover; 15-a first via; 16-a second via; 2-a cooling module; 3-heating the module; 4-a pressure regulation module; 5-a temperature acquisition module; 6-data analysis and control module.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The embodiment of the invention provides a detection die, a measurement method and a measurement device aiming at the problem of data relation between the pressure and the freezing point of a material in the prior art.

As shown in fig. 1 to 2, an embodiment of the present invention provides an inspection mold, including:

a mold body 1;

the cooling module 2 is arranged on the die body 1 and used for reducing the temperature of the material stored in the die body 1;

the heating module 3 is arranged on the die body 1 and used for increasing the temperature of the material stored in the die body 1;

the pressure adjusting module 4 is communicated with the inner cavity 11 of the die body 1, and the pressure change of the inner cavity 11 is controlled through the pressure adjusting module 4;

and the temperature acquisition module 5 is arranged in the internal cavity 11 and is used for acquiring the temperature of the material stored in the internal cavity 11.

In this embodiment of the present invention, the pressure regulating module 4 is used to control the pressure of the internal cavity 11 of the mold body 1, and the cooling module 2 is used to reduce the temperature of the material stored in the mold body 1, the material is solidified from liquid to solid, and the temperature collecting module 5 collects the temperature of the material in the solidification process, so as to obtain the solidification point of the material under the current pressure according to the temperature; after the material is completely solidified, the cooling module 2 is closed, the heating module 3 is controlled to raise the temperature of the material, so that the material is re-melted to liquid, the pressure regulating module 4 is controlled to change the pressure, and the temperature collecting module 5 collects the temperature, so that the solidifying points of the material under different pressures are obtained, the solidifying and forming process of the material is controlled, and the forming quality is improved.

Optionally, the cooling module 2 is a water cooling device, the water cooling device comprises a cooling pipeline and a water pump, the cooling pipeline is arranged on the die body 1, cooling water is introduced into the cooling pipeline, and the cooling water circularly flows in the cooling pipeline through the water pump, so that the temperature of the material stored in the die body 1 is reduced.

Optionally, the heating module 3 includes a heating wire, and the heating wire is wrapped on the mold body 1.

It should be noted that the material may be solidified from a liquid to a solid or may be melted from a solid to a liquid by controlling the temperature through the cooling module 2 and the heating module 3.

Optionally, the temperature acquisition module 5 is a temperature sensor.

It should be noted that the number of the temperature acquisition modules 5 is not particularly limited, and the placement position of the temperature acquisition modules 5 is also not particularly limited, and preferably, the temperature acquisition modules 5 are completely placed in the material.

As shown in fig. 3 to 4, in an alternative embodiment of the present invention, the mold body 1 includes:

a riser 13 with a hollow cavity 12, wherein the riser 13 is covered with a flange cover 14, the riser 13 covers the upper end face of the mold body 1, and the hollow cavity 12 is communicated with the internal cavity 11;

wherein, a first through hole 15 is arranged on the flange cover 14; the gas pipeline of the pressure regulating module 4 closes the first through hole 15 and is communicated with the interior of the die body 1 through the first through hole 15.

It should be noted that, here, the pressure adjusting module 4 includes an air compressor and a control valve, pressure change of the internal cavity 11 of the mold body 1 is realized by the air compressor, and a gas pipeline of the pressure adjusting module 4, which is communicated with the first through hole 15, is closed by the control valve, so as to ensure the sealing performance of the mold body 1.

Furthermore, a second through hole 16 is formed in the flange cover 14, and a connecting line penetrates through the second through hole 16 and extends to the internal cavity 11; the temperature acquisition module 5 is arranged in the inner cavity 11 and is fixedly connected with the connecting wire.

It should be noted that a sealing ring may be disposed at the second through hole 16, or the second through hole 16 is sealed by using a sealant, so as to ensure the sealing performance of the mold body 1, thereby achieving the purpose of controlling the pressure of the internal cavity 11 of the mold body 1.

Preferably, the cooling module 2 is disposed on the mold body 1 and covers the heating module 3.

It should be noted that the heating module 3 is attached to the outer wall of the mold body 1, and the cooling module 2 covers the heating module 3.

It should be further noted that, on the contrary, if the cooling module 2 is attached to the outer wall of the mold body 1, the heating module 3 covers the cooling module 2, which may cause the heating efficiency of the heating module 3 to be reduced, and the solid material may not be completely melted, so that the data acquired by the temperature acquisition module 5 is inaccurate.

In an optional embodiment of the present invention, the detecting mold further includes:

and the data analysis and control module 6 is arranged outside the die body 1, is respectively connected with the temperature acquisition module 5 and the pressure regulation module 4, and is used for acquiring the temperature acquired by the temperature acquisition module 5 and outputting a pressure regulation signal to the pressure regulation module 4.

It should be noted that, through the data analysis and control module 6 can obtain the temperature change data of the whole solidification process of the material under different pressures, and draw the temperature change curve of the solidification process along with the pressure change, according to the enthalpy change characteristic of the temperature curve during solidification, the solidification point of the material is analyzed, so that the solidification rule of the material is mastered, and the solidification molding quality is improved.

It should be noted that the data analysis and control module 6 may also output control signals to the cooling module 2 and the heating module 3 to control the temperature of the material stored in the mold body 1.

As shown in fig. 5, another embodiment of the present invention further provides a method for measuring freezing point using the inspection mold as described above, including:

step S51, after a material to be detected is injected into the inner cavity of the die body, a first pressure adjusting signal is input into the pressure adjusting module, so that the pressure adjusting module controls the pressure of the inner cavity to be a first pressure value;

step S52, inputting a first cooling adjustment signal to a cooling module to start the cooling module, and reducing the temperature of the material to be measured until the material is solidified;

step S53, acquiring first temperature data acquired by a temperature acquisition module in the solidification process of the material to be detected;

and step S54, obtaining the solidifying point of the material to be detected under the first pressure value according to the first temperature data.

In this embodiment of the present invention, the pressure of the internal cavity is controlled to be a first pressure value by the pressure adjusting module, after a first cooling adjusting signal is input to the cooling module, the cooling module is started to reduce the temperature of the material to be measured until the material is solidified to a solid, and meanwhile, the temperature collecting module is used to collect first temperature data to obtain a solidification point of the material to be measured at the first pressure value.

Optionally, the material to be tested is a molten explosive.

Specifically, in step S54, obtaining the solidifying point of the material to be tested at the first pressure value according to the first temperature data includes:

extracting enthalpy change characteristics of the material to be detected according to the first temperature data;

and acquiring the freezing point of the material to be detected under the first pressure value according to the enthalpy change characteristic.

In this embodiment of the present invention, the first temperature data is temperature change data of the material to be detected in the whole solidification process at the first pressure value, a temperature change curve of the solidification process is drawn according to the first temperature data, and enthalpy change characteristics in the temperature change curve are extracted, so as to obtain a solidification point of the material to be detected.

In an optional embodiment of the present invention, the measurement method further includes:

and inputting a first heating adjusting signal to the heating module to start the heating module, and raising the temperature of the solidified material to be detected until the material to be detected is melted into liquid.

It should be noted that, by raising the temperature with the heating module, the state of the material to be measured is reversible and can be fused to the liquid by fixing. And when the material to be measured is completely solidified to be solid, closing the cooling module, controlling the heating module, raising the temperature to enable the material to be measured to be melted from the solid to the liquid, and preparing to start the next measurement.

Further, inputting a first heating adjustment signal to the heating module to start the heating module, and raising the temperature of the solidified material to be detected until the material to be detected is melted into liquid, the method further comprises the following steps:

inputting a second pressure adjusting signal to the pressure adjusting module, so that the pressure adjusting module controls the pressure of the internal cavity to be a second pressure value;

inputting a second cooling adjustment signal to the cooling module to start the cooling module, and reducing the temperature of the material to be measured until the material is solidified;

acquiring second temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and obtaining the freezing point of the material to be detected under the second pressure value according to the second temperature data.

It should be noted that after the material to be measured recovers to liquid again, the control process is repeated, through the pressure adjusting module, the control the pressure of the inner cavity is the second pressure value, and the control the cooling module restarts the cooling module, so that the temperature of the material to be measured is reduced until the material to be measured is solidified to a solid, and meanwhile, the temperature acquisition module is utilized to acquire the second temperature data in the solidification process, so as to obtain the solidification point of the material to be measured under the second pressure value.

Through cooling module with heating module control temperature, the material to be measured can be solidified to the solid by liquid, also can be by fixed melting to liquid to obtain the freezing point of material to be measured under different pressures.

As shown in fig. 6, another embodiment of the present invention also provides a measuring apparatus, including:

the pressure adjusting module 61 is used for inputting a first pressure adjusting signal to the pressure adjusting module after the material to be detected is injected into the inner cavity of the die body, so that the pressure adjusting module controls the pressure of the inner cavity to be a first pressure value;

the cooling control module 62 is configured to input a first cooling adjustment signal to the cooling module, so that the cooling module is started, and the temperature of the material to be measured is reduced until the material to be measured is solidified;

the temperature acquisition module 63 is used for acquiring first temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and an obtaining result module 64, configured to obtain a freezing point of the material to be tested at the first pressure value according to the first temperature data.

In this embodiment of the present invention, the measuring device may control the state of the material to be measured, so as to realize repeated measurement, thereby obtaining the freezing points of the material to be measured under different pressures.

Specifically, the result obtaining module 64 is specifically configured to:

extracting enthalpy change characteristics of the material to be detected according to the first temperature data;

and acquiring the freezing point of the material to be detected under the first pressure value according to the enthalpy change characteristic.

In an optional embodiment of the present invention, the measuring apparatus further includes:

and the heating control module is used for inputting a first heating adjusting signal to the heating module to start the heating module, so that the temperature of the solidified material to be detected is increased until the material to be detected is melted into liquid.

In an optional embodiment of the present invention, the measuring apparatus is further configured to:

inputting a second pressure adjusting signal to the pressure adjusting module, so that the pressure adjusting module controls the pressure of the internal cavity to be a second pressure value;

inputting a second cooling adjustment signal to the cooling module to start the cooling module, and reducing the temperature of the material to be measured until the material is solidified;

acquiring second temperature data acquired by the temperature acquisition module in the solidification process of the material to be detected;

and obtaining the freezing point of the material to be detected under the second pressure value according to the second temperature data.

It should be noted that the measuring apparatus is an apparatus capable of executing the measuring method, and all embodiments of the measuring method are applicable to the apparatus and can achieve the same or similar beneficial effects.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.