CN116921650A - Rotary pouring filling method for barrel-shaped die-casting - Google Patents
Rotary pouring filling method for barrel-shaped die-casting Download PDFInfo
- Publication number
- CN116921650A CN116921650A CN202311124275.1A CN202311124275A CN116921650A CN 116921650 A CN116921650 A CN 116921650A CN 202311124275 A CN202311124275 A CN 202311124275A CN 116921650 A CN116921650 A CN 116921650A
- Authority
- CN
- China
- Prior art keywords
- sprue
- casting
- pouring
- rotary
- barrel
- 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
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004512 die casting Methods 0.000 title claims abstract description 21
- 238000005266 casting Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a rotary pouring filling method of a barrel-shaped die-casting piece, wherein a rotary pouring assembly is arranged at a pouring inlet of a die, the rotary pouring assembly comprises a material cake, the material cake is communicated with a cross runner, the cross runner is communicated with a sprue set, the sprue set comprises a plurality of rotary sprue, the rotation direction of each sprue is consistent, and each sprue is communicated with an inner pouring inlet; the temperature of the aluminum liquid reaches 660 ℃, the aluminum liquid enters the casting feeding assembly from the material cake, then the aluminum liquid enters each rotary sprue through the transverse runner, and enters the barrel casting through the inner gate, the aluminum liquid is filled in the barrel casting in a spiral mode, and gas in the die is extruded. According to the invention, the internal pouring gate is designed to be at an angle smaller than 90 degrees with the sprue, and then the die cavity is filled in a rotary pouring manner, so that the problem of difficult filling of the cylinder-shaped die-casting can be solved, and the external and internal quality of the cylinder-shaped die-casting can be improved to a great extent.
Description
Technical Field
The invention belongs to the technical field of die casting aluminum alloy machinery, and mainly relates to a rotary casting filling method for improving the internal quality of barrel-shaped die casting castings.
Background
When a casting system is selected, a die casting generally obtains higher gate speed for reducing pressure loss of a runner, shortens filling time, reduces air mixing into metal liquid, generally designs an inner gate to be perpendicular to a straight runner, as shown in fig. 1, or designs an included angle between the inner gate and the straight runner to be more than 90 degrees, then obtains better internal quality in a straight-line casting mode, and obtains better internal quality at the fastest speed, when the inner gate and the straight runner are more than or equal to 90 degrees, aluminum liquid is in countercurrent at two sides of the edge of the inner gate, and if aluminum alloy liquid is in countercurrent at the inner gate in the aluminum liquid filling process, air holes are formed at the junction of the inner gate on a product.
When the cylinder molding die-casting adopts a common linear casting scheme, gas in a die cavity is discharged to a product exhaust end rapidly, the gas collides with each other in the rapid exhaust process, an ideal exhaust route is separated, the final gas discharge direction is uncontrolled, part of the gas is remained in the die cavity and the product, the product is loose, the internal air holes are out of tolerance, and the internal quality cannot meet the requirements. Based on the conditions that the temperature of the aluminum liquid is 660 ℃, the speed of a punch is 3m/s, the speed of an inner gate is 45m/s, and the casting pressure is 80MPa, particle tracking simulation is carried out, and the phenomenon that gas is impacted at the water tail part of a product and then flows back into the product to form coiled gas is found, so that quality defects such as gas shrinkage holes and the like in the product are extremely easy to form.
Because of product defects there are the following hidden hazards: 1. the product is bad in modeling, and under the condition of acute angles and the like, the safety operation of staff can be influenced. 2. The product is inside to have the shrinkage cavity, can not satisfy the requirement, leads to foundry goods cooling effect to reduce, produces inside leakage even, and the motor can't normally work.
Disclosure of Invention
The invention aims to solve the problems and provide a rotary pouring filling method for a barrel-shaped die-casting.
The aim of the invention is achieved by the following technical scheme:
the rotary pouring assembly comprises a material cake, wherein the material cake is communicated with a cross runner, the cross runner is communicated with a sprue group, the sprue group comprises a plurality of rotary sprue, the rotation direction of each sprue is consistent, and each sprue is communicated with an in-gate;
the temperature of the aluminum liquid reaches 660 ℃, the aluminum liquid enters the casting feeding assembly from the material cake, then the aluminum liquid enters each rotary sprue through the transverse runner, and enters the barrel casting through the inner gate, the aluminum liquid is filled in the barrel casting in a spiral mode, and gas in the die is extruded.
The invention further improves that: the rotation angle of each sprue is 45-50 degrees.
The invention further improves that: the included angle between each sprue and the corresponding in-gate is smaller than 90 degrees.
The invention further improves that: the die casting pressure was 80MPa, and the speed of the molten aluminum entering the in-gate was 45m/s.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the internal pouring gate is designed to be at an angle smaller than 90 degrees with the sprue, and then the die cavity is filled in a rotary pouring manner, so that the problem of difficult filling of the cylinder-shaped die-casting can be solved, and the external and internal quality of the cylinder-shaped die-casting can be improved to a great extent.
2. When the barrel molding die casting adopts a casting scheme vertical to the end face of the product, the rejection rate of the die casting process is about 40 percent, and when the rotary casting scheme is adopted, the rejection rate of the die casting process is reduced to 5 percent.
Drawings
FIG. 1 is a schematic view of a prior art casting structure;
FIG. 2 is a schematic view of a rotary runner assembly according to the present invention;
FIG. 3 is a schematic view of a part of the structure of the invention in casting;
reference numerals in the drawings: 1-material cake, 2-cross gate, 3-straight gate, 4-in gate and 5-barrel casting.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all 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 and description of components and processes known to those of ordinary skill in the art, which are not relevant to the present invention, have been omitted for clarity. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
As shown in fig. 2 and 3, a rotary pouring assembly is arranged at a pouring inlet of a die, the rotary pouring assembly comprises a material cake 1, the material cake 1 is communicated with a cross runner 2, the cross runner 2 is communicated with a sprue group, the sprue group comprises a plurality of rotary sprue 3, the rotation direction of each sprue 3 is consistent, the rotation angle of each sprue is 45-50 degrees, the optimal angle is 49 degrees, and an aluminum alloy liquid is rotationally filled into a product according to the direction of a pouring inlet of rotary pouring; each sprue 3 is communicated with the corresponding sprue 4, the included angle between each sprue and the corresponding sprue is smaller than 90 degrees, the optimal angle is 80 degrees, gas can be stably extruded out of the die cavity, gas residues in the die cavity are reduced, and gas residues in castings due to gas mutual collision and turbulence are reduced.
The temperature of the aluminum liquid reaches 660 ℃, the aluminum liquid enters the casting assembly from the material cake 1, then the aluminum liquid enters each rotary sprue 3 through the sprue 2, and then enters the barrel casting 5 through the inner gate 4, the aluminum liquid is filled in the barrel casting in a spiral mode, and the gas in the die is extruded. Based on the conditions that the temperature of the aluminum liquid is 660 ℃, the speed of a punch is 3m/s, the speed of an inner gate is 45m/s, and the casting pressure is 80MPa, particle tracking simulation is carried out, the phenomenon that partial gas at the tail part of the product water is stably discharged out of a die cavity according to rotation can be found, and the phenomenon can greatly reduce quality defects such as gas shrinkage holes in the product.
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. Furthermore, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, method and steps described in the specification. Those 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, apparatuses, means, methods, or steps.
Claims (4)
1. A rotary pouring filling method for a barrel-shaped die-casting part is characterized in that a rotary pouring assembly is arranged at a pouring inlet of a die, and the rotary pouring assembly is characterized in that: the rotary type pouring assembly comprises a material cake (1), wherein the material cake (1) is communicated with a cross runner (2), the cross runner (2) is communicated with a sprue group, the sprue group comprises a plurality of rotary type sprue (3), the rotation direction of each sprue (3) is consistent, and each sprue (3) is communicated with an in-gate (4);
the temperature of the aluminum liquid reaches 660 ℃, the aluminum liquid enters the pouring assembly from the material cake (1), then the aluminum liquid enters each rotary straight pouring gate (3) through the transverse pouring gate (2), the aluminum liquid enters the barrel casting (5) through the inner pouring gate (4), the aluminum liquid is filled in the barrel casting in a spiral mode, and gas in the die is extruded.
2. The rotary pouring filling method for the barrel-shaped die-casting according to claim 1, wherein the method comprises the following steps: the rotation angle of each sprue (3) is 45-50 degrees.
3. The rotary pouring filling method for the barrel-shaped die-casting according to claim 1, wherein the method comprises the following steps: the included angle between each sprue (3) and the corresponding in-gate (4) is smaller than 90 degrees.
4. The rotary pouring filling method for the barrel-shaped die-casting according to claim 1, wherein the method comprises the following steps: the die casting pressure is 80MPa, and the speed of the molten aluminum entering the inner pouring gate (4) is 45m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311124275.1A CN116921650A (en) | 2023-09-01 | 2023-09-01 | Rotary pouring filling method for barrel-shaped die-casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311124275.1A CN116921650A (en) | 2023-09-01 | 2023-09-01 | Rotary pouring filling method for barrel-shaped die-casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116921650A true CN116921650A (en) | 2023-10-24 |
Family
ID=88386235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311124275.1A Pending CN116921650A (en) | 2023-09-01 | 2023-09-01 | Rotary pouring filling method for barrel-shaped die-casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116921650A (en) |
-
2023
- 2023-09-01 CN CN202311124275.1A patent/CN116921650A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105945255B (en) | Thin-wall part die casting and die-cast formation equipment | |
| CN104190899A (en) | Low-pressure casting mold of melt spinning wheel and process thereof | |
| CN105855506B (en) | The expects pipe component and injection mold device of the anti-volume gas of die casting machine | |
| CN104275461A (en) | Die-casting die for thin-wall shell of electric connector, design method and thin-wall shell | |
| CN108672673A (en) | A kind of double punch injection structures of die casting machine | |
| CN105750523A (en) | Aluminum alloy high-pressure casting mold | |
| CN201841251U (en) | Four cylinder engine die-casting gate, gate runner structure | |
| CN203459625U (en) | Sand mould structure with integrally-formed screw compressor shell | |
| CN106031946A (en) | Manufacturing process for aluminum alloy bus wheel hub by gravity compression casting | |
| CN109570923A (en) | A kind of processing technology of automobile engine exhaust system heat shield mounting hole | |
| CN106623856B (en) | A kind of method and apparatus improving extrusion casint Piston Casting quality | |
| CN101564757B (en) | Combined knockout core structural investment pattern die bundling core | |
| CN104325085A (en) | Gating system with multistage split transverse runners | |
| CN220679325U (en) | Rotary casting component | |
| CN116921650A (en) | Rotary pouring filling method for barrel-shaped die-casting | |
| CN103372638A (en) | Zinc-alloy USB (universal serial bus) thin-walled workpiece die-casting die structure | |
| CN211661053U (en) | Aluminum alloy die-casting die | |
| CN208728649U (en) | A kind of double formed punch injection structures of die casting machine | |
| CN110355344A (en) | A kind of thin-walled pack alloy structural member running gate system | |
| CN201552280U (en) | Pouring die reducing for shrinkage porosity and shrinkage cavity inside ingot | |
| CN101885057A (en) | Oblique pouring device for casting | |
| CN106890978A (en) | The mould two pieces low pressure casting die of hybrid power engine cylinder cap one and its casting method | |
| CN106111941A (en) | The cast auxiliary mould that a kind of aluminum alloy die-casting die is special | |
| CN105081261A (en) | Pressure casting method for aluminum alloy casting | |
| CN205393499U (en) | Alloying metal frame die casting does not have mould structure of thimble seal |
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 |