CN112024844A - Die-casting forming method of amorphous alloy - Google Patents
Die-casting forming method of amorphous alloy Download PDFInfo
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- CN112024844A CN112024844A CN202010941782.4A CN202010941782A CN112024844A CN 112024844 A CN112024844 A CN 112024844A CN 202010941782 A CN202010941782 A CN 202010941782A CN 112024844 A CN112024844 A CN 112024844A
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- 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
- B22D17/14—Machines with evacuated die cavity
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- 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
- B22D17/32—Controlling equipment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/11—Making amorphous alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/003—Making ferrous alloys making amorphous alloys
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Abstract
The invention discloses a die-casting forming method of amorphous alloy, which is based on the quality and the component proportion of historical amorphous master alloy and the alloy melt pouring temperature training of the corresponding amorphous master alloy to generate an amorphous alloy heating model; outputting a corresponding alloy melt pouring temperature according to the recorded quality and component ratio of the amorphous master alloy based on the amorphous alloy heating model, and outputting a corresponding heating melting mode and a material injection working mode according to the alloy melt pouring temperature; placing the amorphous master alloy raw material in a crucible, realizing heating melting processing of the amorphous master alloy raw material based on a heating melting mode, and injecting an alloy melt into a charging bucket; realizing the pre-vacuum treatment of the material conveying pipe among the die casting die, the die casting die and the feeding barrel according to the material injection working mode; and opening and closing the isolating valve according to the material injection working mode, so that the alloy melt enters a die-casting die, and the casting temperature of the alloy melt is accurately controlled. The invention realizes the intelligent and accurate control of the pouring temperature and the die-casting process.
Description
Technical Field
The invention relates to the field of amorphous alloy processing, in particular to a die-casting forming method of an amorphous alloy.
Background
The new material industry development guidelines clearly indicate that amorphous alloys are the national development requirements and are an important direction for the development of new materials. The amorphous material has special properties due to the unique atomic structural characteristics, such as: the high-strength high-specific-strength high-elasticity high-dynamic fracture toughness, high wear resistance and high corrosion resistance are different from the traditional metal material in the aspects of preparation and processing, have no phase change from liquid state to solid state, have the characteristics of continuous viscosity change, small solidification shrinkage, high surface smoothness, easiness in forming and the like, and are very suitable for preparing complex and thin-wall parts by utilizing a die-casting forming method to replace steel and titanium alloy precise complex components formed by traditional mechanical processing. The method has important application in the fields of national defense and military industry, aerospace and aviation, transportation, petrochemical industry, biomedicine, precision machinery, consumer electronics, information and the like.
The key points influencing the die-casting forming of the amorphous alloy are as follows: the casting temperature is accurately controlled, heterogeneous nucleation is eliminated, the low-temperature amorphous phase precipitation is improved, the microstructure and the performance of the amorphous alloy are regulated and controlled, and surface defects and cracks are inhibited. However, in the prior art, the liquid level of the alloy melt fluctuates unevenly due to the magnetic stirring effect generated by the induction heating mode, so that the infrared thermometer cannot accurately measure the temperature of the alloy melt, on one hand, the temperature is low, the viscosity of the alloy melt is high, the fluidity is poor, and the mold filling capacity is low, on the other hand, the temperature is high, the melt is easy to absorb oxygen, a high-melting-point crystalline phase is separated out, the alloy strength is reduced, and the two phases can influence the molding of the amorphous alloy.
Disclosure of Invention
In order to solve the problems, the invention provides a die-casting forming method of amorphous alloy, which realizes the intelligent and accurate control of pouring temperature and die-casting process, thereby obtaining the amorphous alloy with complete filling, no crack, no defect and high strength.
In order to achieve the purpose, the invention adopts the technical scheme that:
a die-casting forming method of amorphous alloy comprises the following steps:
s1, training to generate an amorphous alloy heating model based on the quality and the component ratio of the historical amorphous master alloy and the alloy melt pouring temperature of the amorphous master alloy corresponding to the historical amorphous master alloy;
s2, outputting a corresponding alloy melt pouring temperature according to the recorded quality and component proportion of the amorphous master alloy based on the amorphous alloy heating model, and outputting a corresponding heating melting mode and a corresponding material injection working mode according to the alloy melt pouring temperature;
s3, placing the amorphous master alloy raw material in a crucible, realizing heating and melting processing of the amorphous master alloy raw material based on the heating and melting mode, and injecting the alloy melt into a charging basket;
s4, realizing the pre-vacuum treatment of the die-casting die, the feed delivery pipes between the die-casting die and the feeding barrel according to the material injection working mode, wherein an isolating valve is arranged between the feeding barrel and the feed delivery pipes;
and S5, opening and closing the isolating valve according to the material injection working mode, so that the alloy melt enters a die-casting die, the casting temperature of the alloy melt is accurately controlled, and meanwhile, secondary vacuum-pumping treatment is carried out on the die to obtain the amorphous alloy.
In step S1, the amorphous alloy heating model adopts a bayesian prediction model, the input items are the quality and the component ratio of the amorphous master alloy, and the output item is the alloy melt pouring temperature of the amorphous master alloy.
Further, in the step S2, a corresponding heating melting mode and a material injection operating mode are output based on a pre-trained BP neural network model according to the alloy melt pouring temperature.
Further, the material injection working mode comprises a working mode of a negative pressure pumping device of the die-casting die and a working mode of the isolating valve.
Further, the conveying pipe is horizontally arranged between the charging barrel and the die-casting die.
The invention has the following beneficial effects:
training to generate an amorphous alloy heating model based on the quality and the component ratio of the historical amorphous master alloy and the alloy melt pouring temperature of the corresponding amorphous master alloy; outputting a corresponding alloy melt pouring temperature according to the recorded quality and component ratio of the amorphous master alloy based on the amorphous alloy heating model, and outputting a corresponding heating melting mode and a corresponding material injection working mode according to the alloy melt pouring temperature; therefore, the intelligent and accurate control of the pouring temperature and the die casting process is realized, and the amorphous alloy with complete filling, no crack and defect and high strength can be obtained.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a die-casting method for an amorphous alloy, including the following steps:
s1, training to generate an amorphous alloy heating model based on the quality and the component ratio of the historical amorphous master alloy and the alloy melt pouring temperature of the amorphous master alloy corresponding to the historical amorphous master alloy;
s2, outputting a corresponding alloy melt pouring temperature according to the recorded quality and component proportion of the amorphous master alloy based on the amorphous alloy heating model, and outputting a corresponding heating melting mode and a corresponding material injection working mode according to the alloy melt pouring temperature;
s3, placing the amorphous master alloy raw material in a crucible, realizing heating and melting processing of the amorphous master alloy raw material based on the heating and melting mode, and injecting the alloy melt into a charging basket;
s4, realizing the pre-vacuum treatment of the die-casting die, the feed delivery pipes between the die-casting die and the feeding barrel according to the material injection working mode, wherein an isolating valve is arranged between the feeding barrel and the feed delivery pipes;
and S5, opening and closing the isolating valve according to the material injection working mode, so that the alloy melt enters a die-casting die, the casting temperature of the alloy melt is accurately controlled, and meanwhile, secondary vacuum-pumping treatment is carried out on the die to obtain the amorphous alloy.
In this embodiment, in the step S1, the amorphous alloy heating model adopts a bayesian prediction model, the input item is the quality and the component ratio of the amorphous master alloy, and the output item is the alloy melt pouring temperature of the amorphous master alloy.
In this embodiment, in the step S2, the corresponding heating and melting mode and the material injection operating mode are output based on the pre-trained BP neural network model according to the alloy melt pouring temperature.
In this embodiment, the material injection working mode includes a working mode of a negative pressure pumping device of the die casting mold and a working mode of the block valve, and intelligent regulation and control of the working modes of the negative pressure pumping device and the block valve are realized based on the working modes
In this embodiment, the feed delivery pipe is horizontally arranged between the charging barrel and the die-casting die.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (5)
1. A die-casting forming method of amorphous alloy is characterized in that: the method comprises the following steps:
s1, training to generate an amorphous alloy heating model based on the quality and the component ratio of the historical amorphous master alloy and the alloy melt pouring temperature of the amorphous master alloy corresponding to the historical amorphous master alloy;
s2, outputting a corresponding alloy melt pouring temperature according to the recorded quality and component proportion of the amorphous master alloy based on the amorphous alloy heating model, and outputting a corresponding heating melting mode and a corresponding material injection working mode according to the alloy melt pouring temperature;
s3, placing the amorphous master alloy raw material in a crucible, realizing heating and melting processing of the amorphous master alloy raw material based on the heating and melting mode, and injecting the alloy melt into a charging basket;
s4, realizing the pre-vacuum treatment of the die-casting die, the feed delivery pipes between the die-casting die and the feeding barrel according to the material injection working mode, wherein an isolating valve is arranged between the feeding barrel and the feed delivery pipes;
and S5, opening and closing the isolating valve according to the material injection working mode, enabling the alloy melt to enter a die-casting die, accurately controlling the casting temperature of the alloy melt, and simultaneously carrying out secondary vacuum-pumping treatment on the die-casting die to obtain the amorphous alloy.
2. The die-casting method of an amorphous alloy as claimed in claim 1, wherein: in the step S1, the amorphous alloy heating model adopts a bayesian prediction model, the input items are the mass and the component ratio of the amorphous master alloy, and the output item is the alloy melt pouring temperature of the amorphous master alloy.
3. The die-casting method of an amorphous alloy as claimed in claim 1, wherein: in the step S2, a corresponding heating melting mode and a material injection working mode are output based on a pre-trained BP neural network model according to the alloy melt pouring temperature.
4. The die-casting method of an amorphous alloy as claimed in claim 1, wherein: the material injection working mode comprises a working mode of negative pressure pumping equipment of the die-casting die and a working mode of the isolating valve.
5. The die-casting method of an amorphous alloy as claimed in claim 1, wherein: the conveying pipe is horizontally arranged between the charging barrel and the die-casting die.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039325A (en) * | 1974-09-24 | 1977-08-02 | Amax Inc. | Vacuum smelting process for producing ferromolybdenum |
| EP1036854A1 (en) * | 1998-07-08 | 2000-09-20 | Japan Science and Technology Corporation | Amorphous alloy having excellent bending strength and impact strength, and method for producing the same |
| EP1416061A1 (en) * | 2002-10-31 | 2004-05-06 | Howmet Research Corporation | Tantalum modified amorphous alloy |
| CN110295293A (en) * | 2019-06-28 | 2019-10-01 | 中国科学院金属研究所 | A kind of amorphous alloy component and preparation method thereof |
| CN110496949A (en) * | 2019-07-10 | 2019-11-26 | 中国科学院金属研究所 | A kind of method of squeeze forming of amorphous alloy |
| CN110530166A (en) * | 2018-05-25 | 2019-12-03 | 气体产品与化学公司 | The system and method for operating batch melting furnace |
-
2020
- 2020-09-09 CN CN202010941782.4A patent/CN112024844A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039325A (en) * | 1974-09-24 | 1977-08-02 | Amax Inc. | Vacuum smelting process for producing ferromolybdenum |
| EP1036854A1 (en) * | 1998-07-08 | 2000-09-20 | Japan Science and Technology Corporation | Amorphous alloy having excellent bending strength and impact strength, and method for producing the same |
| EP1416061A1 (en) * | 2002-10-31 | 2004-05-06 | Howmet Research Corporation | Tantalum modified amorphous alloy |
| CN110530166A (en) * | 2018-05-25 | 2019-12-03 | 气体产品与化学公司 | The system and method for operating batch melting furnace |
| CN110295293A (en) * | 2019-06-28 | 2019-10-01 | 中国科学院金属研究所 | A kind of amorphous alloy component and preparation method thereof |
| CN110496949A (en) * | 2019-07-10 | 2019-11-26 | 中国科学院金属研究所 | A kind of method of squeeze forming of amorphous alloy |
Non-Patent Citations (1)
| Title |
|---|
| 赵洋等: "《汽车动力系统节能减排新技术概论》", 30 November 2017, 江苏大学出版社 * |
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