CN110952009A - Preparation method of alloy casting - Google Patents
Preparation method of alloy casting Download PDFInfo
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- CN110952009A CN110952009A CN201911311518.6A CN201911311518A CN110952009A CN 110952009 A CN110952009 A CN 110952009A CN 201911311518 A CN201911311518 A CN 201911311518A CN 110952009 A CN110952009 A CN 110952009A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
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Abstract
A method for preparing an alloy casting comprises the steps of drawing a three-dimensional structure of the casting, designing a casting pouring system, completing the forming, adding an anti-cracking rib at the joint of a thin wall and a thick wall, preparing a casting silica sol formwork, smelting ZL210A alloy, pouring the smelted alloy into the casting silica sol formwork at low pressure to obtain the casting, annealing and heat treating the casting, and then carrying out solution treatment to remove the anti-cracking rib. According to the invention, the anti-cracking ribs are added at the joints of the thin and thick walls, so that the module coefficient of the casting is changed to a certain extent, the heat dissipation performance of the position is improved, the solidification of the molten metal at the joints of the thin and thick walls is facilitated, and the anti-cracking ribs can also protect the casting in the heat treatment process and reduce the interference of external stress; zr, B and V can reduce casting thermal stress and improve the comprehensive mechanical property of ZL210A alloy; the thermal stress of the casting can be effectively eliminated, and the hot cracking defect of the interface of the thin and thick walls of the casting in the solution treatment process is avoided.
Description
Technical Field
The invention relates to a preparation method of an alloy casting, which is suitable for solving the problem that a hot cracking defect occurs in the solution treatment process of the casting made of ZL210A alloy.
Background
In the present stage, newly developed high-strength high-quality aluminum alloys are based on Al-Cu alloy, and are developed by adding alloy elements such as Mn, Cd and the like and other trace elements, for Al-Cu cast alloys, the solubility of Cu in α -Al solid solution is higher, the solubility is about 5.65% at a eutectic point of 548 ℃, the solubility is reduced along with the reduction of temperature, and the strength of the alloy can be improved by aging strengthening.
The ZL210A alloy is a high-strength Al-Cu-Mn series casting alloy which is newly developed in China, has excellent comprehensive mechanical properties such as high strength, good plasticity, easy cutting processing and surface treatment and the like, is widely applied to stressed structural members of airplanes at present, and has good effect. But the alloy castings have thermal cracking defects existing in Al-Cu alloy, particularly for castings with large thickness difference, huge thermal stress exists in the casting process at the corners of thin and thick walls, and the castings are easy to have thermal cracking defects at the positions after solution treatment. The hot cracking defects of the ZL210A alloy casting after solution treatment directly cause the casting to be scrapped and cause irreparable loss, and the ZL210A alloy casting is limited by the influence of the material and inevitably has great casting thermal stress. The design and development of high-strength aluminum alloy castings are severely limited by the occurrence of the problem, so that a novel and reasonable method for solving the problem of the hot cracking defect in the solution treatment process of ZL210A alloy is urgently needed at the present stage.
Disclosure of Invention
To overcome the problems in the prior art, the invention aims to provide a preparation method of an alloy casting.
In order to achieve the purpose, the invention adopts the technical scheme that:
a preparation method of an alloy casting comprises the following steps:
step 1: drawing a three-dimensional structure of the casting;
step 2: designing a casting pouring system, completing the assembly, and adding anti-cracking ribs at the joint of the thin wall and the thick wall;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: the preparation method comprises the following steps of (1) mixing ZL210A alloy, wherein the ZL210A alloy contains Zr, B and V elements;
and 5: smelting the ZL210A alloy in the step 4;
step 6: pouring the fused alloy into the silica sol formwork of the casting in the step 3 at low pressure to obtain a casting;
and 7: annealing the casting in the step 6;
and 8: carrying out heat treatment on the casting in the step 7, and then carrying out solid solution treatment;
and step 9: and removing the anti-cracking ribs.
The further improvement of the invention is that in the step 2, the contact part of the anti-cracking rib and the casting is subjected to smooth treatment.
The further improvement of the invention is that in the step 3, the ZL210A alloy comprises, by mass, 4.5-5.1% of Cu, 0.35-0.80% of Mn, 0.07-0.25% of Cd, 0.15-0.35% of Ti, 0.05-0.15% of Zr, 0.005-0.06% of B, 0.05-0.30% of V, less than or equal to 0.2% of Si, less than or equal to 0.05% of Mg, less than or equal to 0.15% of Fe, less than or equal to 0.6% of the total sum of impurities, and the balance of Al.
The further improvement of the invention is that in the step 7, the specific conditions of the annealing treatment are as follows: the furnace temperature is lower than 100 ℃, the temperature is increased to 300 ℃, the temperature is kept for 2h, the temperature is cooled to 155 ℃ along with the furnace, and the furnace is taken out and air-cooled.
In a further development of the invention, in step 8, the heat treatment is in particular a T5 heat treatment.
The invention is further improved in that in the step 8, the cooling temperature of the solution treatment is 80-85 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1) increase the crack control muscle in thin thick wall handing-over department, changed the module coefficient of foundry goods to a certain extent, improved the thermal diffusivity of this position, be favorable to the solidification of thin thick wall junction molten metal, secondly the crack control muscle also can protect the foundry goods in heat treatment process, reduces the interference of external stress.
2) On the basis of the original enterprise standard, by taking the distribution ratio of the chemical components of ZL205A alloy as a reference, Zr, B and V elements are taken as non-spontaneous cores of molten metal during crystallization, the Zr, B and V elements have the function of refining aluminum alloy grains, and from the viewpoint of changing the chemical components of ZL210A alloy, the microstructure of the ZL210A alloy is refined, so that not only can the casting thermal stress be reduced, but also the comprehensive mechanical property of the ZL210A alloy is improved.
3) The stress relief annealing process of the ZL210A alloy casting can effectively eliminate the thermal stress of the casting and avoid the hot cracking defect of the interface of the thin and thick walls of the casting in the process of solution treatment.
Furthermore, the water bath cooling temperature of the casting after the solution treatment is properly adjusted to 80-85 ℃, so that the thermal stress of the casting during the water bath cooling can be weakened, and the possibility of secondary hot cracking of the casting is reduced.
Detailed Description
The present invention will be described in further detail with reference to examples.
In order to promote the high-strength ZL210A alloy to be better applied to the fields of aerospace and important civil industry, the problem of hot cracking in the solution treatment process of ZL210A alloy castings is solved, and finally the production efficiency and the process yield of the castings are improved. From the aspects of a process scheme, the design of ZL210A alloy components and an annealing process for developing castings, a method for solving the hot cracking defect in the solution treatment process of ZL210A alloy castings is designed. Firstly, anti-cracking ribs are added at hot cracking parts, and secondly, the component proportion of ZL210A alloy is slightly adjusted on the basis of not changing the component requirement of ZL210A alloy by comparing the chemical component requirements of more mature ZL205A and ZL210A alloy materials; thirdly, an annealing process method of the ZL210A alloy casting is provided, and the casting thermal stress of the ZL210A alloy casting is eliminated at the lowest cost. From the angle of the process scheme, the anti-cracking ribs are added at the joints of the thin and thick walls so as to change the casting modulus at the position; secondly, by taking the more mature component proportion of ZL205A alloy in design and application as a reference, the proportion of alloy elements is slightly adjusted on the basis of meeting the component requirement of ZL210A alloy, the casting thermal stress of a casting is reduced by refining ZL210A alloy crystal grains, and the novel annealing process method before the solution treatment of the ZL210A alloy is invented on the basis of not influencing the mechanical property of the ZL210A alloy, so that the casting thermal stress of the ZL210A alloy is further eliminated.
The composition of the alloy ZL210A of the present invention is shown in Table 1.
TABLE 1 ZL210A alloy composition requirements
Example 1
Taking a casting with the size of 450 multiplied by 300 multiplied by 100mm as an example, the material is ZL210A, the sizes of the thin wall and the thick wall are respectively 7mm and 26mm, the proportion is close to 1:4, and the specific steps of the realization are as follows:
step 1: drawing a casting three-dimension;
step 2: designing a casting pouring system, completing the shaping, adding anti-cracking ribs at the joint of the thin wall and the thick wall, and ensuring that the size is as follows: the end face of 1 multiplied by 15 multiplied by 50mm and 1 multiplied by 15mm contacts with the casting, the height is 15mm, and the contact part of the anti-cracking rib and the casting needs to be smoothly processed;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: completing the alloy batching of the ZL210A casting, adding appropriate amount of Zr, B and V refined grain elements, and specifically, the distribution ratio is shown in Table 2;
and 5: finishing the smelting of the alloy in the step 4;
step 6: pouring the casting silica sol mould shell in the step 4 at low pressure;
and 7: cleaning the formwork on the surface of the casting in the step 6, cutting off a casting head, and polishing burrs on the surface of the casting, wherein anti-cracking ribs are reserved;
and 8: and (3) annealing the casting in the step (7), wherein the annealing process comprises the following steps: feeding the furnace at a temperature lower than 100 ℃, heating to 300 ℃, preserving heat for 2 hours, cooling to 155 ℃ along with the furnace, discharging and air cooling;
and step 9: carrying out T5 heat treatment on the casting in the step 8, wherein the water bath cooling temperature of the solution treatment is 85 ℃;
step 10: polishing to remove anti-cracking ribs;
step 11: and (3) carrying out X-ray and fluorescence detection on the casting in the step (10), and detecting a casting chemical component sample and a mechanical property test bar.
According to the method, the chemical composition adjustment and the stress relief annealing treatment are carried out on the casting, the composition results are shown in table 2, after the casting is subjected to T5 heat treatment, no hot cracking defect is found in rays and fluorescence, and the chemical composition and the mechanical property of the casting meet the technical index requirements after being detected.
TABLE 2 ZL210A alloy composition distribution ratio and test results
Example 2
Taking a casting with the size of 230 multiplied by 270 multiplied by 180mm as an example, the material is ZL210A, the sizes of the thin wall and the thick wall are respectively 5mm and 15mm, and the ratio is 1:3, and the method comprises the following specific steps:
step 1: drawing a casting three-dimension;
step 2: designing a casting pouring system, completing the shaping, adding anti-cracking ribs at the joint of the thin wall and the thick wall, and ensuring that the size is as follows: the end face of 1 × 15 × 50mm and 1 × 15mm contacts with the casting, and the contact part with the casting needs to be smoothly treated;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: completing the alloy batching of the ZL210A casting, adding appropriate amount of Zr, B and V refined grain elements, and specifically, the distribution ratio is shown in Table 3;
and 5: finishing the smelting of the alloy in the step 4;
step 6: pouring the casting silica sol mould shell in the step 4 at low pressure;
and 7: cleaning the formwork on the surface of the casting in the step 6, cutting off a casting head, and polishing burrs on the surface of the casting, wherein anti-cracking ribs are reserved;
and 8: and (3) annealing the casting in the step (7), wherein the annealing process comprises the following steps: feeding the furnace at a temperature lower than 100 ℃, heating to 300 ℃, preserving heat for 2 hours, cooling to 155 ℃ along with the furnace, discharging and air cooling;
and step 9: carrying out T5 heat treatment on the casting in the step 8, wherein the water bath cooling temperature of the solution treatment is 85 ℃;
step 10: polishing to remove anti-cracking ribs;
step 11: and (3) carrying out X-ray and fluorescence detection on the casting in the step (10), and detecting a casting chemical component sample and a mechanical property test bar.
According to the method, the chemical composition adjustment and the stress relief annealing treatment are carried out on the casting, the composition results are shown in table 3, after the casting is subjected to T5 heat treatment, no hot cracking defect is found in rays and fluorescence, and the chemical composition and the mechanical property of the casting meet the technical index requirements after being detected.
TABLE 3 ZL210A alloy composition distribution ratio and test results
Example 3
Taking a casting with the size of 682 x 368 x 260mm as an example, the material is ZL210A, the sizes of the thin wall and the thick wall are respectively 4.5mm and 13mm, the ratio is close to 1:3, and the specific steps of the realization are as follows:
step 1: drawing a casting three-dimension;
step 2: designing a casting pouring system, completing the shaping, adding anti-cracking ribs at the joint of the thin wall and the thick wall, and ensuring that the size is as follows: the end face of 1 × 15 × 50mm and 1 × 15mm contacts with the casting, and the contact part with the casting needs to be smoothly treated;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: completing the alloy batching of the ZL210A casting, adding appropriate amount of Zr, B and V refined grain elements, and specifically, the distribution ratio is shown in Table 4;
and 5: finishing the smelting of the alloy in the step 4;
step 6: pouring the casting silica sol mould shell in the step 4 at low pressure;
and 7: cleaning the formwork on the surface of the casting in the step 6, cutting off a casting head, and polishing burrs on the surface of the casting, wherein anti-cracking ribs are reserved;
and 8: and (3) annealing the casting in the step (7), wherein the annealing process comprises the following steps: feeding the furnace at a temperature lower than 100 ℃, heating to 300 ℃, preserving heat for 2 hours, cooling to 155 ℃ along with the furnace, discharging and air cooling;
and step 9: carrying out T5 heat treatment on the casting in the step 8, wherein the water bath cooling temperature of the solution treatment is 80 ℃;
step 10: polishing to remove anti-cracking ribs;
step 11: and (3) carrying out X-ray and fluorescence detection on the casting in the step (10), and detecting a casting chemical component sample and a mechanical property test bar.
According to the method, the chemical composition adjustment and the stress relief annealing treatment are carried out on the casting, the composition results are shown in table 4, after the casting is subjected to T5 heat treatment, no hot cracking defect is found in rays and fluorescence, and the chemical composition and the mechanical property of the casting meet the technical index requirements after being detected.
TABLE 4 ZL210A alloy composition distribution ratio and test results
Example 4
Taking a casting with the size of 450 multiplied by 300 multiplied by 100mm as an example, the material is ZL210A, the sizes of the thin wall and the thick wall are respectively 7mm and 26mm, the proportion is close to 1:4, and the specific steps of the realization are as follows:
step 1: drawing a casting three-dimension;
step 2: designing a casting pouring system, completing the shaping, adding anti-cracking ribs at the joint of the thin wall and the thick wall, and ensuring that the size is as follows: the end face of 1 multiplied by 15 multiplied by 50mm and 1 multiplied by 15mm contacts with the casting, the height is 15mm, and the contact part of the anti-cracking rib and the casting needs to be smoothly processed;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: completing the alloy batching of the ZL210A casting, adding appropriate amount of Zr, B and V refined grain elements, and specifically, the distribution ratio is shown in Table 5;
and 5: finishing the smelting of the alloy in the step 4;
step 6: pouring the casting silica sol mould shell in the step 4 at low pressure;
and 7: cleaning the formwork on the surface of the casting in the step 6, cutting off a casting head, and polishing burrs on the surface of the casting, wherein anti-cracking ribs are reserved;
and 8: and (3) annealing the casting in the step (7), wherein the annealing process comprises the following steps: feeding the furnace at a temperature lower than 100 ℃, heating to 300 ℃, preserving heat for 2 hours, cooling to 155 ℃ along with the furnace, discharging and air cooling;
and step 9: carrying out T5 heat treatment on the casting in the step 8, wherein the water bath cooling temperature of the solution treatment is 80 ℃;
step 10: polishing to remove anti-cracking ribs;
step 11: and (3) carrying out X-ray and fluorescence detection on the casting in the step (10), and detecting a casting chemical component sample and a mechanical property test bar.
TABLE 5 ZL210A alloy composition distribution ratio and test results
Example 5
Taking a casting with the size of 450 multiplied by 300 multiplied by 100mm as an example, the material is ZL210A, the sizes of the thin wall and the thick wall are respectively 7mm and 26mm, the proportion is close to 1:4, and the specific steps of the realization are as follows:
step 1: drawing a casting three-dimension;
step 2: designing a casting pouring system, completing the shaping, adding anti-cracking ribs at the joint of the thin wall and the thick wall, and ensuring that the size is as follows: the end face of 1 multiplied by 15 multiplied by 50mm and 1 multiplied by 15mm contacts with the casting, the height is 15mm, and the contact part of the anti-cracking rib and the casting needs to be smoothly processed;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: completing the alloy batching of the ZL210A casting, adding appropriate amount of Zr, B and V refined grain elements, and specifically, the distribution ratio is shown in Table 6;
and 5: finishing the smelting of the alloy in the step 4;
step 6: pouring the casting silica sol mould shell in the step 4 at low pressure;
and 7: cleaning the formwork on the surface of the casting in the step 6, cutting off a casting head, and polishing burrs on the surface of the casting, wherein anti-cracking ribs are reserved;
and 8: and (3) annealing the casting in the step (7), wherein the annealing process comprises the following steps: feeding the furnace at a temperature lower than 100 ℃, heating to 300 ℃, preserving heat for 2 hours, cooling to 155 ℃ along with the furnace, discharging and air cooling;
and step 9: carrying out T5 heat treatment on the casting in the step 8, wherein the water bath cooling temperature of the solution treatment is 80 ℃;
step 10: polishing to remove anti-cracking ribs;
step 11: and (3) carrying out X-ray and fluorescence detection on the casting in the step (10), and detecting a casting chemical component sample and a mechanical property test bar.
TABLE 6 ZL210A alloy composition distribution ratio and test results
Example 6
Taking a casting with the size of 450 multiplied by 300 multiplied by 100mm as an example, the material is ZL210A, the sizes of the thin wall and the thick wall are respectively 7mm and 26mm, the proportion is close to 1:4, and the specific steps of the realization are as follows:
step 1: drawing a casting three-dimension;
step 2: designing a casting pouring system, completing the shaping, adding anti-cracking ribs at the joint of the thin wall and the thick wall, and ensuring that the size is as follows: the end face of 1 multiplied by 15 multiplied by 50mm and 1 multiplied by 15mm contacts with the casting, the height is 15mm, and the contact part of the anti-cracking rib and the casting needs to be smoothly processed;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: completing the alloy batching of the ZL210A casting, adding appropriate amount of Zr, B and V refined grain elements, and specifically, the distribution ratio is shown in Table 7;
and 5: finishing the smelting of the alloy in the step 4;
step 6: pouring the casting silica sol mould shell in the step 4 at low pressure;
and 7: cleaning the formwork on the surface of the casting in the step 6, cutting off a casting head, and polishing burrs on the surface of the casting, wherein anti-cracking ribs are reserved;
and 8: and (3) annealing the casting in the step (7), wherein the annealing process comprises the following steps: feeding the furnace at a temperature lower than 100 ℃, heating to 300 ℃, preserving heat for 2 hours, cooling to 155 ℃ along with the furnace, discharging and air cooling;
and step 9: carrying out T5 heat treatment on the casting in the step 8, wherein the water bath cooling temperature of the solution treatment is 80 ℃;
step 10: polishing to remove anti-cracking ribs;
step 11: and (3) carrying out X-ray and fluorescence detection on the casting in the step (10), and detecting a casting chemical component sample and a mechanical property test bar.
TABLE 7 ZL210A alloy composition ratio and detection result
Claims (6)
1. The preparation method of the alloy casting is characterized by comprising the following steps of:
step 1: drawing a three-dimensional structure of the casting;
step 2: designing a casting pouring system, completing the assembly, and adding anti-cracking ribs at the joint of the thin wall and the thick wall;
and step 3: preparing a casting silica sol mould shell;
and 4, step 4: the preparation method comprises the following steps of (1) mixing ZL210A alloy, wherein the ZL210A alloy contains Zr, B and V elements;
and 5: smelting the ZL210A alloy in the step 4;
step 6: pouring the fused alloy into the silica sol formwork of the casting in the step 3 at low pressure to obtain a casting;
and 7: annealing the casting in the step 6;
and 8: carrying out heat treatment on the casting in the step 7, and then carrying out solid solution treatment;
and step 9: and removing the anti-cracking ribs.
2. The method for preparing an alloy casting according to claim 1, wherein in the step 2, the contact part of the anti-cracking rib and the casting is subjected to smoothing treatment.
3. The method for preparing an alloy casting according to claim 1, wherein in the step 3, the ZL210A alloy comprises, by mass, 4.5-5.1% of Cu, 0.35-0.80% of Mn, 0.07-0.25% of Cd, 0.15-0.35% of Ti, 0.05-0.15% of Zr, 0.005-0.06% of B, 0.05-0.30% of V, less than or equal to 0.2% of Si, less than or equal to 0.05% of Mg, less than or equal to 0.15% of Fe, less than or equal to 0.6% of the total impurities, and the balance of Al.
4. A method for preparing an alloy casting according to claim 1, wherein in step 7, the specific conditions of the annealing treatment are as follows: the furnace temperature is lower than 100 ℃, the temperature is increased to 300 ℃, the temperature is kept for 2h, the temperature is cooled to 155 ℃ along with the furnace, and the furnace is taken out and air-cooled.
5. A method of making an alloy casting according to claim 1 wherein in step 8 the heat treatment is specifically a T5 heat treatment.
6. A method of making an alloy casting according to claim 1 wherein the cooling temperature of the solution treatment in step 8 is 80-85 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496264A (en) * | 2020-11-30 | 2021-03-16 | 北京航星机器制造有限公司 | Preparation method of resin sand casting without shock channel defect |
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|---|---|---|---|---|
| EP0564814A2 (en) * | 1992-02-28 | 1993-10-13 | Ykk Corporation | Compacted and consolidated material of a high-strength, heat-resistant aluminum-based alloy and process for producing the same |
| CN102002617A (en) * | 2010-12-10 | 2011-04-06 | 河北立中有色金属集团有限公司 | Cast aluminum alloy for automobile and preparation method thereof |
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2019
- 2019-12-18 CN CN201911311518.6A patent/CN110952009A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0564814A2 (en) * | 1992-02-28 | 1993-10-13 | Ykk Corporation | Compacted and consolidated material of a high-strength, heat-resistant aluminum-based alloy and process for producing the same |
| CN102002617A (en) * | 2010-12-10 | 2011-04-06 | 河北立中有色金属集团有限公司 | Cast aluminum alloy for automobile and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 周中波等: ""低压铸造ZL210A合金铸件流线缺陷研究"", 《特种铸造及有色合金》 * |
| 郭潇群等: ""铸造浇注系统辅助设计平台的研究与开发"", 《特种铸造及有色合金》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496264A (en) * | 2020-11-30 | 2021-03-16 | 北京航星机器制造有限公司 | Preparation method of resin sand casting without shock channel defect |
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Application publication date: 20200403 |