CN219511918U - Minimum casting wall thickness test device of magnesium lithium alloy sand mould - Google Patents
Minimum casting wall thickness test device of magnesium lithium alloy sand mould Download PDFInfo
- Publication number
- CN219511918U CN219511918U CN202320222595.XU CN202320222595U CN219511918U CN 219511918 U CN219511918 U CN 219511918U CN 202320222595 U CN202320222595 U CN 202320222595U CN 219511918 U CN219511918 U CN 219511918U
- Authority
- CN
- China
- Prior art keywords
- wall thickness
- casting
- lithium alloy
- magnesium
- pouring
- 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.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a device for testing the minimum casting wall thickness of a magnesium-lithium alloy sand mould, which comprises a sand box, wherein a pouring system and a plurality of sample moulds communicated with the pouring system are arranged in the sand box, the pouring system comprises a pouring cup, a sprue and a runner, the pouring cup is communicated with the runner through the sprue, and the plurality of sample moulds are respectively communicated with the runner. The magnesium-lithium alloy sand casting obtained by the method can cast minimum wall thickness data, and can well guide the design of the sand magnesium-lithium alloy sand casting and the design of the casting process.
Description
Technical Field
The utility model relates to the field of casting technology, in particular to a magnesium-lithium alloy sand mould minimum casting wall thickness test device.
Background
The magnesium alloy is an alloy which is based on magnesium and added with other elements. The method is characterized in that: has a low density (1.8 g/cm) 3 Left and right), high strength, large elastic modulus, good heat dissipation, good shock absorption, larger impact load bearing capacity than aluminum alloy, and good corrosion resistance to organic matters and alkali. The main alloy elements are aluminum, zinc, manganese, cerium, thorium, a small amount of zirconium or cadmium, etc. The most widely used is magnesium aluminum alloy, followed by magnesium manganese alloy and magnesium zinc zirconium alloy. The method is mainly used for the industrial departments of aviation, aerospace, transportation, chemical industry, rocket and the like.
The Mg-Li alloy belongs to an ultra-light metal material, the density of the Mg-Li alloy is only 1/2 of that of an aluminum alloy, the density of the Mg-Li alloy is 3/4 of that of a traditional magnesium alloy, and the Mg-Li alloy has the characteristics of low density, specific strength, specific rigidity, higher specific elastic modulus and the like, and has good casting performance and cutting processability. The magnesium-lithium alloy belongs to an emerging ultra-light metal material, is gradually applied to aviation, aerospace, military industry and 3C product industry in recent years, is currently used for processing deformed materials, is rarely used for casting production, is rarely disclosed in the casting process condition, and does not find the minimum castable wall thickness parameter of a magnesium-lithium alloy casting during sand casting, including the minimum castable wall thickness parameter of the magnesium-lithium alloy during casting production in the modes of normal pressure, low pressure and the like.
The minimum castable wall thickness parameter of the cast alloy is one of the basic data for the structural design of the casting and is also an important parameter for the design of the casting process. The minimum wall thickness parameter of common alloy castings is summarized through long-term, large-scale and large-scale production practice, and no test method for determining the minimum wall thickness of castings in actual production, especially no report on the determination method of the minimum castable wall thickness when magnesium-lithium alloy is used for producing sand castings, is found.
Therefore, how to provide a method for casting a minimum castable wall thickness of a magnesium-lithium alloy sand casting is a problem which needs to be solved by the person skilled in the art.
Disclosure of Invention
In order to solve the technical problems in the background art, the utility model provides a magnesium-lithium alloy sand mould minimum casting wall thickness test device, and provides a test scheme for determining the minimum wall thickness during the design of magnesium-lithium alloy castings and the design of casting technology.
The technical scheme of the utility model is as follows: the utility model relates to a magnesium-lithium alloy sand mould minimum casting wall thickness test device, which is characterized in that: the device for testing the minimum casting wall thickness of the magnesium-lithium alloy sand mould comprises a sand box, wherein a pouring system and a plurality of sample molds communicated with the pouring system are arranged in the sand box, the pouring system comprises a pouring cup, a sprue and a runner, the pouring cup is communicated with the runner through the sprue, and the plurality of sample molds are respectively communicated with the runner.
Further, the number of sample molds is 4, and the sample molds are uniformly distributed on the cross gate.
Further, the length×width×height= (100 to 200) × (20 to 40) × (2/3/4/5) mm of the 4 sample molds.
Further, a first vent hole is formed in each sample mold.
Further, a second exhaust hole is formed in the cross gate.
Further, a sprue nest seat is arranged between the sprue and the cross gate.
Further, the flask size is: length x width x height (up/down) = (400-500) × (260-400) × (50-150)/(30-60) mm.
Further, the casting system includes dimensions of: a pouring cup with phi 40-phi 100mm, a sprue with phi 20-phi 40mm, a pouring nest with SR (15-25) mm and a runner with a cross section of wide x high= (10-30) x (8-20) mm.
The magnesium-lithium alloy sand mould minimum casting wall thickness test device provided by the utility model has the following advantages:
1) The utility model provides a test device and a judgment method for determining the minimum castable wall thickness of a casting during sand casting of a magnesium-lithium alloy, which are particularly useful for judging the minimum castable wall thickness of the magnesium-lithium alloy under conventional production conditions and process parameters.
2) The utility model provides a test scheme which is easy to implement, convenient to analyze and capable of drawing conclusions of the minimum wall thickness of castings with different sizes and structures. The magnesium-lithium alloy sand casting obtained by the method can cast minimum wall thickness data, and can well guide the design of the sand magnesium-lithium alloy sand casting and the design of the casting process.
3) The minimum wall thickness test device for the magnesium-lithium alloy sand casting castings is suitable for the magnesium-lithium alloy sand castings with different sizes and structures, provides important parameter basis for the design of the magnesium-lithium alloy sand casting and the design of casting technology, provides relevant parameter ranges, is convenient to adjust for different product structures, sizes and production conditions, can be popularized and used, and has important significance for the sand casting production of magnesium-lithium alloy.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a cross-sectional view A-A of fig. 1.
The reference numerals are explained as follows:
1. a sand box; 2. a sample mold; 3. a first exhaust hole; 4. a pouring cup; 5. a cross gate; 6. a second exhaust hole; 7. a sprue; 8. and a pouring gate nest seat.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and to specific embodiments:
referring to fig. 1 and 2, the structure of the concrete embodiment of the utility model comprises a sand box 1, wherein a pouring system and a plurality of sample molds 2 communicated with the pouring system are arranged in the sand box 1, the pouring system comprises a pouring cup 4, a sprue 7, a sprue nest 8 and a runner 5, the pouring cup 4 is communicated with the runner 5 through the sprue 7 and the sprue nest 8, and the plurality of sample molds 2 are respectively communicated with the runner 5. In the preferred embodiment, the number of sample molds 2 is 4, the sample molds 2 are uniformly distributed on the runner 5, and the length x width x height= (100-200) × (20-40) × (2/3/4/5) mm of the 4 sample molds 2. Each sample mold 2 is provided with a first vent hole 3. The runner 5 is provided with a second vent hole 6.
The sand box size is: length x width x height (up/down) = (400-500) × (260-400) × (50-150)/(30-60) mm.
The casting system comprises the following dimensions: a pouring cup with phi 40-phi 100mm, a sprue with phi 20-phi 40mm, a pouring nest with SR (15-25) mm and a runner with a cross section of wide x high= (10-30) x (8-20) mm.
The test data analysis and judgment principle is as follows: when the sample casting is complete and the corners are clear, casting production can be carried out on the casting with the wall thickness; when the length of the sample casting is less than 1/2 of that of the model sample, casting production of the casting with the wall thickness cannot be performed; when the sample casting length exceeds 1/2 of the model sample but is not fully filled, or the sample casting length is complete but the corners are not clear, the wall thickness is considered to be the minimum castable wall thickness of the magnesium-lithium alloy sand casting.
The following is a specific application example of the present utility model.
Example 1
A magnesium lithium alloy sand mold minimum casting wall thickness test device, comprising: sample structure and size, casting system, casting structure and size, casting process, data analysis and judgment principle.
The pouring system, the casting mould structure and the casting process are basic contents, and can be properly adjusted according to the technical requirements and parameters in the utility model by referring to the actual practice of the enterprise.
The number of the samples is 4, the width is 20mm, the thickness is 2mm, 3mm, 4mm and 5mm respectively, and the lengths of the samples are adjusted according to the size and the structure of the casting. The test sample of this example was 100mm long for small castings. And (3) manufacturing a die by adopting aluminum alloy, wherein the roughness of the working surface of the die is 1.6-3.2.
The casting process comprises the following steps: green sand (strictly controlling moisture), manual molding, sand hardness of more than or equal to 80, manual air hole pricking, and box clamping for fastening upper and lower casting molds; the casting temperature is the same as or slightly higher than the normal production; the casting speed is the same as that of normal production; parameters such as draft angle, fillet and the like are selected according to the requirements of the conventional casting process.
Unpacking and measuring: and pouring the casting mould for 10 minutes, pouring the casting mould, cooling the casting, taking out and measuring the size of the casting.
Data analysis and evaluation principle: measuring the lengths of the castings of the samples with different wall thicknesses, if the castings of the samples with certain thickness are completely molded and the corners are clear, the castings with the wall thicknesses can be cast by using the existing technological parameters; if the casting length of a sample with a certain thickness is less than 50mm, the casting with the wall thickness cannot be cast by the existing technological parameters; if the length of the cast casting cast by a sample with a certain wall thickness is more than 50mm but less than 100mm, or the length of the cast casting cast by the sample reaches 100mm, but the sample is not full in filling, the corners are not clear, the wall thickness is considered to be the minimum castable wall thickness under the prior technological parameters.
Example 2
A magnesium lithium alloy sand mold minimum casting wall thickness test device, comprising: sample structure and size, casting system, casting structure and size, casting process, data analysis and judgment principle.
The pouring system, the casting mould structure and the casting process are basic contents, and can be properly adjusted according to the technical requirements and parameters in the utility model by referring to the actual practice of the enterprise.
The number of the samples is 4, the width is 30mm, the thickness is 2mm, 3mm, 4mm and 5mm respectively, and the lengths of the samples are adjusted according to the size and the structure of the casting. The length of the sample is 150mm for the medium-sized casting. And (3) manufacturing a die by adopting aluminum alloy, wherein the roughness of the working surface of the die is 1.6-3.2.
The casting process comprises the following steps: green sand (strictly controlling moisture), manual molding, sand hardness not less than 90, manual air hole pricking, and box clamping for fastening upper and lower casting molds. The casting temperature is the same as or slightly higher than the normal production; the casting speed is the same as that of normal production; parameters such as draft angle, fillet and the like are selected according to the requirements of the conventional casting process.
Unpacking and measuring: and pouring the casting mould for 10 minutes, pouring the casting mould, cooling the casting, taking out and measuring the size of the casting.
Data analysis and evaluation principle: measuring the lengths of the castings of the samples with different wall thicknesses, if the castings of the samples with certain thickness are completely molded and the corners are clear, the castings with the wall thicknesses can be cast by using the existing technological parameters; if the casting length of a cast sample with a certain thickness is less than 75mm, the casting with the wall thickness cannot be cast by the existing technological parameters; if the length of the cast casting cast by the sample with a certain wall thickness is more than 75mm but less than 150mm, or the length of the cast casting cast by the sample reaches 150mm, but the sample is not full in filling, the corners are not clear, the wall thickness is considered to be the minimum castable wall thickness under the prior technological parameters.
Example 3
A magnesium lithium alloy sand mold minimum casting wall thickness test device, comprising: sample structure and size, casting system, casting structure and size, casting process, data analysis and judgment principle.
The pouring system, the casting mould structure and the casting process are basic contents, and can be properly adjusted according to the technical requirements and parameters in the utility model by referring to the actual practice of the enterprise.
The number of the samples is 4, the width is 40mm, the thickness is 2mm, 3mm, 4mm and 5mm respectively, and the lengths of the samples are adjusted according to the size and the structure of the casting. The sample of this example was 200 for a large casting, with a length of 200. And (3) manufacturing a die by adopting aluminum alloy, wherein the roughness of the working surface of the die is 1.6-3.2.
The casting process comprises the following steps: green sand (strictly controlling moisture), machine molding, sand mold hardness not less than 95, hand or machine air hole pricking, and box clamping to fasten the upper and lower casting mold. The casting temperature is the same as or slightly higher than the normal production; the casting speed is the same as that of normal production; parameters such as draft angle, fillet and the like are selected according to the requirements of the conventional casting process.
Unpacking and measuring: and pouring the casting mould for 15 minutes, pouring the casting mould, cooling the casting, taking out and measuring the size of the casting.
Data analysis and evaluation principle: measuring the lengths of samples with different wall thicknesses, if the castings of the samples with certain thickness are completely molded, and the corners of the samples are clear, the castings with the wall thicknesses can be cast by using the existing technological parameters; if the casting length of a sample with a certain thickness is less than 100mm, the casting with the wall thickness cannot be cast by the existing technological parameters; if the length of the cast casting cast by a sample with a certain wall thickness is more than 100mm but less than 200mm, or the length of the cast casting cast by the sample reaches 200mm, but the sample is not full in filling, the corners are not clear, the wall thickness is considered to be the minimum castable wall thickness under the prior technological parameters.
The technical matters not specifically described in the foregoing embodiments are the same as those in the prior art.
The present utility model is not limited to the above-described embodiments, and the present utility model can be implemented with the above-described advantageous effects.
The above is only a specific embodiment disclosed in the present utility model, but the scope of the present utility model is not limited thereto, and the scope of the present utility model should be defined by the claims.
Claims (8)
1. A magnesium lithium alloy sand mould minimum casting wall thickness test device which is characterized in that: the device for testing the wall thickness of the magnesium-lithium alloy sand mould during minimum casting comprises a sand box, wherein a pouring system and a plurality of sample molds communicated with the pouring system are arranged in the sand box, the pouring system comprises a pouring cup, a sprue and a runner, the pouring cup is communicated with the runner through the sprue, and the plurality of sample molds are respectively communicated with the runner.
2. The magnesium lithium alloy sand mold minimum casting wall thickness test device according to claim 1, wherein: the number of the sample molds is 4, and the sample molds are uniformly distributed on the cross gate.
3. The magnesium lithium alloy sand mold minimum casting wall thickness test device according to claim 2, wherein: the length x width x height= (100 to 200) × (20 to 40) × (2/3/4/5) mm for 4 sample molds.
4. A magnesium lithium alloy sand mold minimum casting wall thickness test apparatus according to claim 3, wherein: each sample die is provided with a first exhaust hole.
5. The magnesium lithium alloy sand mold minimum casting wall thickness test device according to claim 4, wherein: and a second exhaust hole is formed in the transverse pouring channel.
6. A magnesium lithium alloy sand mould minimum casting wall thickness test apparatus according to any one of claims 1 to 5, wherein: and a sprue nest seat is arranged between the sprue and the cross gate.
7. The magnesium lithium alloy sand mold minimum casting wall thickness test device according to claim 6, wherein: the sand box has the following dimensions: length x width x height= (400-500) × (260-400) × (50-150)/(30-60) mm.
8. The magnesium lithium alloy sand mold minimum casting wall thickness test device according to claim 6, wherein: the casting system comprises the following components: a pouring cup with phi 40-phi 100mm, a sprue with phi 20-phi 40mm, a pouring nest with SR 15-25 mm and a runner with a cross section of width multiplied by height multiplied by (10-30) multiplied by (8-20) mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320222595.XU CN219511918U (en) | 2023-02-15 | 2023-02-15 | Minimum casting wall thickness test device of magnesium lithium alloy sand mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320222595.XU CN219511918U (en) | 2023-02-15 | 2023-02-15 | Minimum casting wall thickness test device of magnesium lithium alloy sand mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219511918U true CN219511918U (en) | 2023-08-11 |
Family
ID=87529543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320222595.XU Active CN219511918U (en) | 2023-02-15 | 2023-02-15 | Minimum casting wall thickness test device of magnesium lithium alloy sand mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219511918U (en) |
-
2023
- 2023-02-15 CN CN202320222595.XU patent/CN219511918U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109648065B (en) | Method for evaluating recrystallization forming tendency of single crystal superalloy | |
| CN103920849B (en) | The casting method of Diesel Engine Cylinder Block Castings | |
| CN103826776B (en) | Mold method for designing and mold | |
| CN110961585B (en) | Casting process of ingot mold | |
| CN107716872A (en) | A kind of casting method of large-scale working ways | |
| CN103084541A (en) | Forming technology of air cylinder cover casting | |
| CN211437992U (en) | Sand casting cold core mould | |
| CN219511918U (en) | Minimum casting wall thickness test device of magnesium lithium alloy sand mould | |
| CN1120064C (en) | Vacuum sealed chill casting process of making glass mold of dot type graphite cast iron | |
| CN116448032A (en) | Method for testing minimum casting wall thickness of magnesium-lithium alloy sand mould | |
| ITRM940560A1 (en) | METHOD OF LOWERING IN NON-RECOVERABLE MODELS USING SAND WITH SPECIFIC THERMAL PROPERTIES | |
| CN113385639A (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 | |
| CN113042685B (en) | 3DP sand mold casting process suitable for ZL205A aluminum alloy complex thin-wall component | |
| CN209918861U (en) | Composite graphite chill | |
| Rajkumar et al. | Influence of parameters on the smart productivity of modern metal casting process: an overview | |
| CN208680491U (en) | A kind of low pressure casting die of automobile cylinder cover | |
| CN102861871A (en) | Vacuum evaporative mold casting process of dry-type cylinder block | |
| CN110918891A (en) | Aluminum alloy thin wall spare water-cooling metal shell mould casting device | |
| CN206981716U (en) | Multifunctional metal-type casting sample horizontal combination mould | |
| CN114855041A (en) | Die-casting magnesium alloy containing rare earth and forming process thereof | |
| CN215931460U (en) | Adjustable die for laboratory metal forming | |
| CN215845532U (en) | Sand box assembly for manufacturing single-casting sample rod sand mold | |
| CN208133253U (en) | A kind of mold processing case of good heat-insulation effect | |
| CN116638061B (en) | Die casting size deformation control method for new energy automobile | |
| CN216828534U (en) | Sand core mould for casting automobile clamp body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |