CN111842790A - Casting process of planet wheel carrier - Google Patents
Casting process of planet wheel carrier Download PDFInfo
- Publication number
- CN111842790A CN111842790A CN201910347399.3A CN201910347399A CN111842790A CN 111842790 A CN111842790 A CN 111842790A CN 201910347399 A CN201910347399 A CN 201910347399A CN 111842790 A CN111842790 A CN 111842790A
- Authority
- CN
- China
- Prior art keywords
- sand
- casting
- planet carrier
- filling
- planet
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a casting process of a planet carrier, which comprises the following steps: manufacturing a foam planet gear carrier model by using a die casting machine; uniformly filling molding sand into the inner surface, the outer surface and each part of the planetary carrier model; pouring molten steel with the temperature of 1570-; a uniform and continuous casting mode is adopted in the casting operation process; after the casting is finished for 2.5 to 4 hours, moving the sand box to a molding sand treatment inlet; and (4) carrying out burr polishing and hot test shaping on the planet wheel carrier, finishing post-treatment, and warehousing after the final product is qualified through optical inspection. The forging method improves the utilization rate of steel, improves the casting precision, has high structural strength and improves the production efficiency.
Description
Technical Field
The invention relates to the field of casting, in particular to a casting process of a planet carrier.
Background
The planet wheel carrier is used as one of important parts in a planet wheel transmission system, and is applied to automobiles, fans and the like; in the prior art, the planet gear carrier can be damaged after being used for a long time, and once the planet gear carrier is damaged, the damage to the transmission system is avoided, the potential safety hazard to the whole transmission system is caused, and the defects of low utilization rate of raw materials, high production cost and insufficient structural strength in the casting of the conventional automobile planet gear carrier are overcome.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a casting process of a planet carrier, and the forging method improves the utilization rate of steel, improves the casting precision, has high structural strength and improves the production efficiency.
In order to achieve the purpose, the invention provides a casting process of a planet carrier, which comprises the following steps:
s10: molding: manufacturing a foam planet gear carrier model by using a die casting machine;
s20: filling sand and molding: laying bottom sand in a sand box, placing the sand box on a vibration workbench, compacting the bottom sand, then placing the planet carrier model in the step S10 into the sand box, dividing the planet carrier model into sand filling, vibrating while filling the sand to ensure the sand filling to be compact, and uniformly filling the sand into the inner surface, the outer surface and each part of the planet carrier model;
s30: pouring: pouring molten steel with the temperature of 1570-; a uniform and continuous casting mode is adopted in the casting operation process;
s40: cooling treatment: after the casting is finished for 2.5-4 hours, moving the sand box to a molding sand treatment inlet, pouring out the molding sand and the planet carrier product together, lifting and moving the planet carrier product to a specified place for natural cooling, cutting off a casting head of the cooled planet carrier casting, cleaning a surface coating layer, and then putting the casting head into a shot blasting machine for surface shot blasting until the surface is clean;
S50: and (4) checking: and (5) performing burr polishing and hot-test shaping on the planet carrier in the step S40, finishing post-processing, and warehousing after optical inspection is qualified.
Preferably, in the step S30, in the smelting of the molten steel, after the temperature is reached, the spectral elements of the molten steel are analyzed and adjusted to meet the requirements.
Preferably, in step S30, the temperature of the molten steel is 1650 ℃.
Preferably, in step S40, the time for pouring the molten steel in the carrier model is 3.5 hours.
Due to the adoption of the technical scheme, the invention has the following advantages: the forging method improves the utilization rate of steel, improves the casting precision, has high structural strength and improves the production efficiency.
Detailed Description
The present invention is further described below.
Example 1
The invention provides a casting process of a planet carrier, which comprises the following steps: s10: molding: manufacturing a foam planet gear carrier model by using a die casting machine; s20: filling sand and molding: laying bottom sand in a sand box, placing the sand box on a vibration workbench, compacting the bottom sand, then placing the planet carrier model in the step S10 into the sand box, dividing the planet carrier model into sand filling, vibrating while filling the sand to ensure the sand filling to be compact, and uniformly filling the sand into the inner surface, the outer surface and each part of the planet carrier model; s30: pouring: pouring molten steel with the temperature of 1570 ℃ into a finished product model in a sand box along a pouring channel, and finishing replacement of the foam planet carrier by the metal planet carrier after the model is vaporized and disappears; a uniform and continuous casting mode is adopted in the casting operation process; s40: cooling treatment: after the casting is finished for 2.5 hours, moving the sand box to a molding sand treatment inlet, pouring out the molding sand and the planet carrier product together, lifting and moving the planet carrier product to a specified place for natural cooling, cutting off a casting head of the cooled planet carrier casting, cleaning a surface coating layer, and then putting the planet carrier casting into a shot blasting machine for surface shot blasting until the surface is clean; s50: and (4) checking: and (5) performing burr polishing and hot-test shaping on the planet carrier in the step S40, finishing post-processing, and warehousing after optical inspection is qualified.
Example 2
The invention provides a casting process of a planet carrier, which comprises the following steps: s10: molding: manufacturing a foam planet gear carrier model by using a die casting machine; s20: filling sand and molding: laying bottom sand in a sand box, placing the sand box on a vibration workbench, compacting the bottom sand, then placing the planet carrier model in the step S10 into the sand box, dividing the planet carrier model into sand filling, vibrating while filling the sand to ensure the sand filling to be compact, and uniformly filling the sand into the inner surface, the outer surface and each part of the planet carrier model; s30: pouring: pouring molten steel with the temperature of 1700 ℃ into a finished product model in a sand box along a pouring channel, and vaporizing and disappearing the model to finish the replacement of the foam planet carrier by the metal planet carrier; a uniform and continuous casting mode is adopted in the casting operation process; cooling treatment: s40: after the casting is finished for 4 hours, moving the sand box to a molding sand treatment inlet, pouring out the molding sand and the planet carrier product together, lifting and moving the planet carrier product to a specified place for natural cooling, cutting off a casting head of the cooled planet carrier casting, cleaning a surface coating layer, and then putting the planet carrier casting into a shot blasting machine for surface shot blasting until the surface is clean; and (4) checking: s50: and (5) performing burr polishing and hot-test shaping on the planet carrier in the step S40, finishing post-processing, and warehousing after optical inspection is qualified.
Example 3
The invention provides a casting process of a planet carrier, which comprises the following steps: s10: molding: manufacturing a foam planet gear carrier model by using a die casting machine; s20: filling sand and molding: laying bottom sand in a sand box, placing the sand box on a vibration workbench, compacting the bottom sand, then placing the planet carrier model in the step S10 into the sand box, dividing the planet carrier model into sand filling, vibrating while filling the sand to ensure the sand filling to be compact, and uniformly filling the sand into the inner surface, the outer surface and each part of the planet carrier model; s30: pouring: pouring molten steel with the temperature of 1650 ℃ into a finished product model in a sand box along a pouring channel, and vaporizing and disappearing the model to finish the replacement of the foam planet carrier by the metal planet carrier; a uniform and continuous casting mode is adopted in the casting operation process; s40: cooling treatment: after pouring is completed for 3.5 hours, moving the sand box to a molding sand treatment inlet, pouring out the molding sand and the planet carrier product together, lifting and moving the planet carrier product to a specified place for natural cooling, cutting off a casting head of the cooled planet carrier casting, cleaning a surface coating layer, and then putting the planet carrier casting into a shot blasting machine for surface shot blasting until the surface is clean; s50: and (4) checking: and (5) performing burr polishing and hot-test shaping on the planet carrier in the step S40, finishing post-processing, and warehousing after optical inspection is qualified.
Due to the adoption of the technical scheme, the invention has the following advantages: the forging method improves the utilization rate of steel, improves the casting precision, has high structural strength and improves the production efficiency.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (4)
1. The casting process of the planet carrier is characterized by comprising the following steps:
s10: molding: manufacturing a foam planet gear carrier model by using a die casting machine;
s20: filling sand and molding: laying bottom sand in a sand box, placing the sand box on a vibration workbench, compacting the bottom sand, then placing the planet carrier model in the step S10 into the sand box, dividing the planet carrier model into sand filling, vibrating while filling the sand to ensure the sand filling to be compact, and uniformly filling the sand into the inner surface, the outer surface and each part of the planet carrier model;
s30: pouring: pouring molten steel with the temperature of 1570-; a uniform and continuous casting mode is adopted in the casting operation process;
S40: cooling treatment: after the casting is finished for 2.5-4 hours, moving the sand box to a molding sand treatment inlet, pouring out the molding sand and the planet carrier product together, lifting and moving the planet carrier product to a specified place for natural cooling, cutting off a casting head of the cooled planet carrier casting, cleaning a surface coating layer, and then putting the casting head into a shot blasting machine for surface shot blasting until the surface is clean;
s50: and (4) checking: and (5) performing burr polishing and hot-test shaping on the planet carrier in the step S40, finishing post-processing, and warehousing after optical inspection is qualified.
2. The casting process of the planetary carrier according to claim 1, wherein in the step S30, in the smelting of the molten steel, after the temperature is reached, the spectral elements of the molten steel are analyzed and adjusted to meet the requirements.
3. A casting process of a planetary carrier according to claim 1, wherein in step S30, the temperature of the molten steel is 1650 ℃.
4. A casting process of a planetary carrier according to claim 1, wherein in step S40, the molten steel is poured into the planetary carrier model for a period of 3.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347399.3A CN111842790A (en) | 2019-04-28 | 2019-04-28 | Casting process of planet wheel carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347399.3A CN111842790A (en) | 2019-04-28 | 2019-04-28 | Casting process of planet wheel carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111842790A true CN111842790A (en) | 2020-10-30 |
Family
ID=72964904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910347399.3A Pending CN111842790A (en) | 2019-04-28 | 2019-04-28 | Casting process of planet wheel carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111842790A (en) |
-
2019
- 2019-04-28 CN CN201910347399.3A patent/CN111842790A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201030 |
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| WD01 | Invention patent application deemed withdrawn after publication |