阅读说明：本技术 一种内温可控的盖板压铸工艺 (Cover plate die-casting process with controllable internal temperature ) 是由 李佩婷 于 2021-01-08 设计创作，主要内容包括：本发明公开了一种内温可控的盖板压铸工艺,包括以下步骤：铝块检测；铝锭熔化；压铸生产：将铝液灌注进模具中内进行压铸得到盖板毛坯,同时在压铸过程通过冷却液对模具进行温度控制,使压铸过程中铝液的温度为650℃,模具温度为180±20℃；压盖板检测；盖板清理和抛丸；清洗；气密检测。本发明一种内温可控的盖板压铸工艺,通过铝液注入内模,由冷却液注入集水管中,通过冷却液控制内模的温度,控制铝液固化成型的速度,提高盖板成型效率,保证盖板成型质量。(The invention discloses a die-casting process of a cover plate with controllable internal temperature, which comprises the following steps: detecting an aluminum block; melting an aluminum ingot; die casting production: pouring aluminum liquid into the die for die-casting to obtain a cover plate blank, and simultaneously controlling the temperature of the die by cooling liquid in the die-casting process to ensure that the temperature of the aluminum liquid is 650 ℃ and the temperature of the die is 180 +/-20 ℃; detecting a cover pressing plate; cleaning a cover plate and performing shot blasting; cleaning; and (6) detecting air tightness. According to the cover plate die-casting process with the controllable internal temperature, disclosed by the invention, the molten aluminum is injected into the inner mold, the cooling liquid is injected into the water collecting pipe, the temperature of the inner mold is controlled by the cooling liquid, the solidification and forming speed of the molten aluminum is controlled, the cover plate forming efficiency is improved, and the cover plate forming quality is ensured.)

1. The die-casting process of the cover plate with the controllable inner temperature is characterized by comprising the following steps of:

1) and (3) detecting an aluminum block: carrying out mechanical and chemical detection on the aluminum block to generate a self-detection report, a chemical analysis report and a mechanical performance report;

2) melting an aluminum ingot: according to the detection report of the aluminum block, putting the aluminum block into a high-temperature oven, and adjusting the proper temperature to melt the aluminum block into aluminum liquid;

3) die casting production: pouring aluminum liquid into the die for die-casting to obtain a cover plate blank, and simultaneously controlling the temperature of the die by cooling liquid in the die-casting process to ensure that the temperature of the aluminum liquid is 650 ℃ and the temperature of the die is 180 +/-20 ℃;

4) detecting a cover pressing plate: detecting the surface of the cover plate blank by a flaw detector, a hardness tester, a microscope and the like to obtain a cover plate blank detection report;

5) cleaning a cover plate and performing shot blasting: carrying out surface treatment on the detected cover plate blank through an electric tool, a manual tool and a shot blasting machine according to the cover plate blank detection report to obtain a rough machining cover plate;

6) cleaning: cleaning the surface of the rough-machined cover plate by using a medium-pressure ultrasonic cleaner to obtain a finish-machined cover plate;

7) and (3) air tightness detection: and carrying out air tightness detection on the finish machining cover plate through an air tightness detection machine to obtain the cover plate.

2. The die-casting process for the cover plate with the controllable internal temperature as claimed in claim 1, wherein in the step 2), the temperature of the high-temperature oven can be controlled to be 580-720 ℃ according to a detection report.

3. The die-casting process for the cover plate with the controllable inner temperature as claimed in claim 1, wherein in the step 3), the die-casting production comprises the following steps:

firstly, die assembly: buckling the movable mold frame and the fixed mold frame with each other to form an inner mold;

casting molten aluminum: injecting aluminum liquid into an aluminum liquid pipeline of the inner mold through the charging barrel;

injection: pressing the aluminum liquid into the mold from the aluminum liquid pipeline by using a hammer head;

fourthly, opening the mold: separating the movable mold frame from the fixed mold frame to obtain a cover plate blank;

material removing: ejecting the cover plate blank from the die by using a stripping column;

taking materials: and taking out the cover plate blank after the material is taken out from the inner die to finish the material taking.

4. The die-casting process for the cover plate with the controllable internal temperature as claimed in claim 3, wherein the cooling liquid injected from the outside during die assembly is injected through a water collecting pipe in the die, and the water collecting pipe is arranged in the die and used for controlling the temperature in the die and preventing the internal temperature of the die from being overheated and the aluminum liquid from being solidified.

5. The cover plate die-casting process with the controllable internal temperature as claimed in claim 3, wherein the injection is carried out by injecting molten aluminum into the die cavity through a hammer fixed in a die-casting machine.

6. The die-casting process of a cover plate with controllable internal temperature as claimed in claim 3, wherein the stripping column is an ejector pin arranged inside the die, and the cover plate is ejected when the die-casting of the die is completed.

Technical Field

The invention belongs to the technical field of cover plate machining, and particularly relates to a cover plate die-casting process with controllable internal temperature.

Background

With the development of economy and the improvement of social living standard, automobiles become common transportation tools for people to go out, wherein the automobile cover plate is an important component in three-in-one electric driving; the three-in-one electric drive simplifies external wiring among parts, and achieves the aims of light weight and cost saving on the whole; in order to adapt to a novel electric drive device, the cover plate is required to ensure the rigidity of the cover plate while meeting the requirement of light weight so as to achieve the function of protecting external wiring between internal parts. There is therefore a need for a solution to the above problems.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a cover plate die-casting temperature control process for ensuring the die-casting efficiency of a cover plate, ensuring the quality of the cover plate, and controlling the die-casting forming temperature of the cover plate.

In order to achieve the purpose, the invention provides a cover plate die-casting process with controllable internal temperature, which is characterized by comprising the following steps of:

1) and (3) detecting an aluminum block: carrying out mechanical and chemical detection on the aluminum block to generate a self-detection report, a chemical analysis report and a mechanical performance report;

2) melting an aluminum ingot: according to the detection report of the aluminum block, putting the aluminum block into a high-temperature oven, and adjusting the proper temperature to melt the aluminum block into aluminum liquid;

3) die casting production: pouring aluminum liquid into the die for die-casting to obtain a cover plate blank, and simultaneously controlling the temperature of the die by cooling liquid in the die-casting process to ensure that the temperature of the aluminum liquid is 650 ℃ and the temperature of the die is 180 +/-20 ℃;

4) detecting a cover pressing plate: detecting the surface of the cover plate blank by a flaw detector, a hardness tester, a microscope and the like to obtain a cover plate blank detection report;

5) cleaning a cover plate and performing shot blasting: carrying out surface treatment on the detected cover plate blank through an electric tool, a manual tool and a shot blasting machine according to the cover plate blank detection report to obtain a rough machining cover plate;

6) cleaning: cleaning the surface of the rough-machined cover plate by using a medium-pressure ultrasonic cleaner to obtain a finish-machined cover plate;

7) and (3) air tightness detection: and carrying out air tightness detection on the finish machining cover plate through an air tightness detection machine to obtain the cover plate.

In one example, in step 2), the temperature of the high-temperature oven can be controlled to be 580 ℃ -720 ℃ according to the detection report.

In one example, in step 3), the die-cast production comprises the steps of:

firstly, die assembly: buckling the movable mold frame and the fixed mold frame with each other to form an inner mold;

casting molten aluminum: injecting aluminum liquid into an aluminum liquid pipeline of the inner mold through the charging barrel;

injection: pressing the aluminum liquid into the mold from the aluminum liquid pipeline by using a hammer head;

fourthly, opening the mold: separating the movable mold frame from the fixed mold frame to obtain a cover plate blank;

material removing: ejecting the cover plate blank from the die by using a stripping column;

taking materials: and taking out the cover plate blank after the material is taken out from the inner die to finish the material taking.

In one example, the cooling liquid injected from the outside during the mold closing is injected through a water collecting pipe in the mold, and the water collecting pipe is arranged in the mold and used for controlling the temperature in the mold and preventing the temperature in the mold from being overheated and the aluminum liquid from being incapable of solidifying.

In one example, the injection is to inject the aluminum liquid into the interior of the mold cavity through a hammer head fixed in the die casting machine.

In one example, the stripper column is a thimble mounted inside the die to eject the cover plate when die casting of the die is completed.

The cover plate die-casting process with controllable internal temperature provided by the invention has the following beneficial effects that: the molten aluminum is injected into the inner mold, the cooling liquid is injected into the water collecting pipe, the temperature of the inner mold is controlled through the cooling liquid, the speed of molten aluminum solidification forming is controlled, the cover plate forming efficiency is improved, and the cover plate forming quality is guaranteed.

Detailed Description

The following detailed description is given by way of example in order to more clearly illustrate the overall concept of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used merely for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

The technical solution of the present invention is further explained by the following embodiments.

The cover plate die-casting temperature control process of the embodiment comprises the following steps:

1) and (3) detecting an aluminum block: carrying out mechanical and chemical detection on the aluminum block to generate a self-detection report, a chemical analysis report and a mechanical performance report;

2) melting an aluminum ingot: according to the detection report of the aluminum block, putting the aluminum block into a high-temperature oven, and adjusting the proper temperature to melt the aluminum block into aluminum liquid;

3) die casting production: pouring aluminum liquid into the die to perform die casting for 15S to obtain a cover plate blank, and simultaneously performing temperature control on the die through cooling liquid in the die casting process to ensure that the temperature of the aluminum liquid is 650 ℃ and the temperature of the die is 180 +/-20 ℃;

4) detecting a cover pressing plate: detecting the surface of the cover plate blank by a flaw detector, a hardness tester, a microscope and the like to obtain a cover plate blank detection report;

5) cleaning a cover plate and performing shot blasting: carrying out surface treatment on the detected cover plate blank through an electric tool, a manual tool and a shot blasting machine according to the cover plate blank detection report to obtain a rough machining cover plate;

6) cleaning: cleaning the surface of the rough-machined cover plate by using a medium-pressure ultrasonic cleaner to obtain a finish-machined cover plate;

7) and (3) air tightness detection: and carrying out air tightness detection on the finish machining cover plate through an air tightness detection machine to obtain the cover plate.

For the cover plate manufactured by the embodiment, the gravity of the part reaches 0.211KG, and the integral deformation of the cover plate is +/-0.5 mm. The water way is airtight and pressurized at 272kPa +/-2 kPa, the leakage amount reaches 1.5cc/min, and the surface cleanliness of the cover surface is that metal particles are less than or equal to 600 um.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.