CN112676539A - New energy automobile motor casing water channel processing technology - Google Patents
New energy automobile motor casing water channel processing technology Download PDFInfo
- Publication number
- CN112676539A CN112676539A CN202011619496.2A CN202011619496A CN112676539A CN 112676539 A CN112676539 A CN 112676539A CN 202011619496 A CN202011619496 A CN 202011619496A CN 112676539 A CN112676539 A CN 112676539A
- Authority
- CN
- China
- Prior art keywords
- coating
- sand core
- core
- sand
- dip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a new energy automobile motor casing water channel processing technology, which is characterized in that on the basis of the original core making technology, a sand core dip-coating process is added after a core repairing process: mixing the alcohol-based coating and ethanol according to a ratio of 1: 1 by using a stirring tool to form a coating, stirring for 5-10min, and measuring the baume degree of the coating by using a baume degree specific gravity meter, wherein the baume degree range value is 10-15 Be; immersing the qualified sand core after core trimming into the coating, wherein the immersion height is below a riser parting surface; taking out the sand core, observing the surface of the sand core by eye to ensure that the sand core has no missing coating, and the coating is uniform and has no accumulation and sagging; measuring the thickness of the coating by using a coating thickness measuring rule, namely measuring any point of the dip-coated outer wall part, wherein the thickness of the coating is less than or equal to 250 mu m; and transferring the qualified dip-coating of the sand core into a constant temperature and humidity room for storage. According to the invention, the alcohol-based coating is dip-coated on the surface of the sand core, so that the direct contact between the sand core and the aluminum liquid is avoided, the water channel cavity is smooth and clean after sand shaking, no sand core residue exists, the risk of cutter breakage during processing is reduced, and the cooling safety coefficient of the motor is improved.
Description
Technical Field
The invention relates to a processing technology of a water channel of a motor shell of a new energy automobile.
Background
Because the cooling water channel in the middle of the motor shell is in a back-off angle, normal mold stripping cannot be carried out, and therefore the sand core needs to be preset for low-pressure casting production. Because the temperature of aluminum liquid for casting the motor shell is high, the aluminum liquid can erode the sand core and infiltrate into the sand core, so that sand sticking to the side wall of the water channel cavity of the product is caused. On one hand, frequent cutter breakage during machining can be caused, on the other hand, the cleanliness of a product can be influenced, a cooling channel of the motor is blocked, and the motor is burnt and even safety accidents occur.
Disclosure of Invention
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
The invention aims to provide a processing technology of a water channel of a motor shell of a new energy automobile, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a new energy automobile motor casing water channel processing technology comprises the following processing steps:
A. setting the temperature of the die: temperature of the upper die: at temperature of 120 ℃ and 170 ℃, and the lower mold temperature: 190 ℃ at 150 ℃;
B. die assembly: the pressure of a core box pressing oil cylinder is as follows: 170 +/-20 bar;
C. sand shooting: shooting sand into the die cavity, wherein the sand shooting pressure is as follows: 5 +/-1 bar, sand shooting time: 1-2 s;
D. blowing air into the mold cavity, wherein the blowing pressure is as follows: 2-4bar, air blowing time: 25 ± 5s, air temperature: 150 ℃ and 200 ℃;
E. exhausting: exhaust by exhaust valve, exhaust valve exhaust time: 2 +/-1 s, natural exhaust time of the core box: 1-2 s;
F. opening the mold, and taking out the sand core;
G. core repairing: the surface of the sand core is visually observed to have no obvious strain, looseness, defects or deformation, and a parting line file is adopted to scrape the surface of the sand core;
H. dip-coating of the sand core:
a. mixing the alcohol-based coating and ethanol according to a ratio of 1: 1 by using a stirring tool to form a coating, and stirring for 5-10 min;
b. immersing the qualified sand core after core trimming into the coating, wherein the immersion height is below a riser parting surface;
c. taking out the sand core, observing the surface of the sand core by eye to ensure that the sand core has no missing coating, and the coating is uniform and has no accumulation and sagging;
d. measuring the thickness of the coating by using a coating thickness measuring rule, namely measuring any point of the dip-coated outer wall part, wherein the thickness of the coating is less than or equal to 250 mu m;
e. and transferring the qualified dip-coating of the sand core into a constant temperature and humidity room for storage.
The invention is further improved in that: the baume degree of the coating is measured by using the baume degree specific gravity, and the range value of the baume degree is 10-15 Be.
The invention has the beneficial effects that: the invention has the advantages of high casting utilization rate, easy sequential solidification, less internal defects, less gas and sundries involved, capability of using sand cores, easy realization of automation, capability of performing multiple operations and multiple procedures, and wide application range of casting materials.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Elements and features described in one embodiment of the invention may be combined with elements and features shown in one or more other embodiments. It should be noted that the illustration omits illustration and description of components and processes not relevant to the present invention that are known to those of ordinary skill in the art for clarity purposes. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
In order to make the technical advantages of the embodiments more apparent, a full and detailed description of the present disclosure will be given below.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "transmitting" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the two components can be connected mechanically or electrically, directly or through an intermediate medium, or the two components can be communicated with each other. The transmission may be of gas pressure or of electrical data information. The specific meaning of the above terms in the present invention can be understood in terms of specific situations by those of ordinary skill in the art.
The following will describe in detail the embodiments, in which the features can be combined with each other.
The implementation scheme provided by the implementation method is a new energy automobile motor shell water channel processing technology, and the processing steps are as follows: setting the temperature of the die: temperature of the upper die: at temperature of 120 ℃ and 170 ℃, and the lower mold temperature: 190 ℃ at 150 ℃; die assembly: the pressure of a core box pressing oil cylinder is as follows: 170 +/-20 bar; sand shooting: shooting sand into the die cavity, wherein the sand shooting pressure is as follows: 5 +/-1 bar, sand shooting time: 1-2 s; blowing air into the mold cavity, wherein the blowing pressure is as follows: 2-4bar, air blowing time: 25 ± 5s, air temperature: 150 ℃ and 200 ℃; exhausting: exhaust by exhaust valve, exhaust valve exhaust time: 2 +/-1 s, natural exhaust time of the core box: 1-2 s; opening the mold, and taking out the sand core; core repairing: the surface of the sand core is visually observed to have no obvious strain, looseness, defects or deformation, and a parting line file is adopted to scrape the surface of the sand core; dip-coating of the sand core: mixing the alcohol-based coating and ethanol according to a ratio of 1: 1 by using a stirring tool to form a coating, stirring for 5-10min, and measuring the baume degree of the coating by using a baume degree specific gravity meter, wherein the baume degree range value is 10-15 Be; immersing the qualified sand core after core trimming into the coating, wherein the immersion height is below a riser parting surface; taking out the sand core, observing the surface of the sand core by eye to ensure that the sand core has no missing coating, and the coating is uniform and has no accumulation and sagging; measuring the thickness of the coating by using a coating thickness measuring rule, namely measuring any point of the dip-coated outer wall part, wherein the thickness of the coating is less than or equal to 250 mu m; and transferring the qualified dip-coating of the sand core into a constant temperature and humidity room for storage.
According to the invention, the alcohol-based coating is dip-coated on the surface of the sand core, so that the direct contact between the sand core and the aluminum liquid is avoided, the water channel cavity is smooth and clean after sand shaking, no sand core residue exists, the risk of cutter breakage during processing is reduced, and the cooling safety coefficient of the motor is improved.
Finally, it should be noted that: although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, devices, means, methods, or steps.
Claims (2)
1. A new energy automobile motor casing water course processing technology is characterized in that: the processing steps are as follows:
A. setting the temperature of the die: temperature of the upper die: at temperature of 120 ℃ and 170 ℃, and the lower mold temperature: 190 ℃ at 150 ℃;
B. die assembly: the pressure of a core box pressing oil cylinder is as follows: 170 +/-20 bar;
C. sand shooting: shooting sand into the die cavity, wherein the sand shooting pressure is as follows: 5 +/-1 bar, sand shooting time: 1-2 s;
D. blowing air into the mold cavity, wherein the blowing pressure is as follows: 2-4bar, air blowing time: 25 ± 5s, air temperature: 150 ℃ and 200 ℃;
E. exhausting: exhaust by exhaust valve, exhaust valve exhaust time: 2 +/-1 s, natural exhaust time of the core box: 1-2 s;
F. opening the mold, and taking out the sand core;
G. core repairing: the surface of the sand core is visually observed to have no obvious strain, looseness, defects or deformation, and a parting line file is adopted to scrape the surface of the sand core;
H. dip-coating of the sand core:
a. mixing the alcohol-based coating and ethanol according to a ratio of 1: 1 by using a stirring tool to form a coating, and stirring for 5-10 min;
b. immersing the qualified sand core after core trimming into the coating, wherein the immersion height is below a riser parting surface;
c. taking out the sand core, observing the surface of the sand core by eye to ensure that the sand core has no missing coating, and the coating is uniform and has no accumulation and sagging;
d. measuring the thickness of the coating by using a coating thickness measuring rule, namely measuring any point of the dip-coated outer wall part, wherein the thickness of the coating is less than or equal to 250 mu m;
e. and transferring the qualified dip-coating of the sand core into a constant temperature and humidity room for storage.
2. The processing technology of the water channel of the motor casing of the new energy automobile as claimed in claim 1, wherein: the baume degree of the coating is measured by using the baume degree specific gravity, and the range value of the baume degree is 10-15 Be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011619496.2A CN112676539A (en) | 2020-12-31 | 2020-12-31 | New energy automobile motor casing water channel processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011619496.2A CN112676539A (en) | 2020-12-31 | 2020-12-31 | New energy automobile motor casing water channel processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112676539A true CN112676539A (en) | 2021-04-20 |
Family
ID=75453737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011619496.2A Pending CN112676539A (en) | 2020-12-31 | 2020-12-31 | New energy automobile motor casing water channel processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112676539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226687A (en) * | 2021-12-23 | 2022-03-25 | 江苏文灿压铸有限公司 | Preparation method of new energy automobile auxiliary frame formed by split type sand core |
| CN114226687B (en) * | 2021-12-23 | 2024-04-26 | 江苏文灿压铸有限公司 | Preparation method of split type sand core formed auxiliary frame of new energy automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002000370A1 (en) * | 2000-06-13 | 2002-01-03 | Shengyi Qin | A process and an apparatus of mold-making or core-making |
| CN106077499A (en) * | 2016-08-15 | 2016-11-09 | 合肥江淮铸造有限责任公司 | A kind of bell housing core dipping process |
| CN108543917A (en) * | 2018-05-14 | 2018-09-18 | 南阳飞龙汽车零部件有限公司 | A method of solving heat resisting steel product cavity defect |
| CN108746504A (en) * | 2018-04-24 | 2018-11-06 | 上柴动力海安有限公司 | A kind of diesel engine cylinder cover dip-coating stoving process |
-
2020
- 2020-12-31 CN CN202011619496.2A patent/CN112676539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002000370A1 (en) * | 2000-06-13 | 2002-01-03 | Shengyi Qin | A process and an apparatus of mold-making or core-making |
| CN106077499A (en) * | 2016-08-15 | 2016-11-09 | 合肥江淮铸造有限责任公司 | A kind of bell housing core dipping process |
| CN108746504A (en) * | 2018-04-24 | 2018-11-06 | 上柴动力海安有限公司 | A kind of diesel engine cylinder cover dip-coating stoving process |
| CN108543917A (en) * | 2018-05-14 | 2018-09-18 | 南阳飞龙汽车零部件有限公司 | A method of solving heat resisting steel product cavity defect |
Non-Patent Citations (2)
| Title |
|---|
| 卢宝胜;: "气缸体铸件的组芯立浇工艺", 现代铸铁, no. 04 * |
| 田海永;张坤;赵群宪;陈贵强;孔凡超;: "发动机缸体油道芯的冷芯盒工艺", 现代铸铁, no. 05, pages 87 - 90 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226687A (en) * | 2021-12-23 | 2022-03-25 | 江苏文灿压铸有限公司 | Preparation method of new energy automobile auxiliary frame formed by split type sand core |
| CN114226687B (en) * | 2021-12-23 | 2024-04-26 | 江苏文灿压铸有限公司 | Preparation method of split type sand core formed auxiliary frame of new energy automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102717029B (en) | Casting method for large thin-wall shell aluminium alloy casting | |
| CN113070453B (en) | Casting method of gear box casting | |
| CN103028698A (en) | Precise casting method of fired mold | |
| CN109894575B (en) | Investment casting core production process for turbocharger volute and pump parts | |
| CN109570923A (en) | A kind of processing technology of automobile engine exhaust system heat shield mounting hole | |
| CN110270676B (en) | Aluminum-silicon alloy casting process | |
| CN106670385A (en) | V-method model casting process for casting household appliance base | |
| CN113385639B (en) | Design method of variable wall thickness sand mold structure for controlling microstructure of casting in targeted manner and variable wall thickness sand mold structure | |
| CN112676539A (en) | New energy automobile motor casing water channel processing technology | |
| CN107486543A (en) | A kind of full form casting process of case of transmission | |
| CN109434072B (en) | Casting process of gear box body of remote controller of valve of gas and fuel oil delivery pipeline | |
| CN111182752B (en) | Radiator case for magnetic suspension train and casting method thereof | |
| CN103949584B (en) | The sand mould casting method of the 22nd grade of stator blade is pressed in H level combination circulation steam turbine | |
| CN104741577A (en) | Technology for producing aluminum copper alloy castings through metal-mould low pressure casting | |
| CN104550740A (en) | Method for casting large thin-wall rotation body high strength aluminum alloy casting | |
| CN102218503A (en) | Use method of ice core during precision casting | |
| CN105014012A (en) | Lost foam manufacturing technology | |
| CN110039003A (en) | A kind of manufacturing method of large size martensitic stain less steel casting | |
| CN113130912B (en) | Lead pipe of lead-acid storage battery and manufacturing method | |
| CN215966252U (en) | Air-cooled mould for low-pressure casting of aluminum hub | |
| CN113787177A (en) | Casting method of large-cylinder-diameter marine low-speed diesel engine bearing seat steel casting | |
| CN110508750B (en) | Casting method of workpiece with partition plate in elongated hole | |
| CN203437613U (en) | Mold for centrifugally casting flange | |
| CN105014051A (en) | Casting production process for machine tool shell | |
| CN113020544A (en) | Preparation method of ceramic core for titanium alloy cast characters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |