CN111974964A - Ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy casting and preparation process thereof - Google Patents
Ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy casting and preparation process thereof Download PDFInfo
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- CN111974964A CN111974964A CN202010939844.8A CN202010939844A CN111974964A CN 111974964 A CN111974964 A CN 111974964A CN 202010939844 A CN202010939844 A CN 202010939844A CN 111974964 A CN111974964 A CN 111974964A
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- Prior art keywords
- semi
- solid
- template
- building template
- aluminum alloy
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Classifications
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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
- B22D17/007—Semi-solid pressure die casting
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention belongs to the technical field of building tools, and particularly relates to an ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy casting and a preparation process thereof. The ultrahigh-strength high-heat-conductivity aluminum alloy material is used as a material, semi-solid rheoforming equipment is used for pulping the aluminum-magnesium alloy material, and semi-solid die casting equipment is used for producing the building template. The aluminum-magnesium alloy material is integrally formed by adopting an integral semi-solid die-casting process, the rigidity of the template is ensured, the production efficiency of the template is improved by more than 50%, the mass of the template is reduced by 30% compared with that of the traditional steel template, and the template is convenient to mount, dismount and carry. The aluminum-magnesium alloy material and the concrete have the characteristic of no infiltration, so that the template and the concrete have good separability, and the convenience of use of the template is improved.
Description
Technical Field
The invention relates to a building construction tool, in particular to an ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy casting and a preparation process thereof.
Background
The building template is used for the whole grouting forming process of the building, and is required to be convenient to disassemble and carry besides good rigidity and strength. The traditional building template is manufactured by welding steel or aluminum alloy, the former has excellent strength and rigidity but large weight and is inconvenient to disassemble and carry, and the latter is convenient to assemble, disassemble and carry due to light weight. In recent years, aluminum alloy forms have received a great deal of attention and have been rapidly developed. The conventional aluminum alloy template adopts an aluminum alloy extruded section, and in order to make up for the difference of the rigidity of the aluminum alloy, a longitudinal reinforcing rib is usually designed in the extrusion direction to improve the rigidity of the template. However, due to the limitation of the extrusion process, the aluminum alloy extrusion die plate can only be provided with the reinforcing ribs in the longitudinal direction to improve the rigidity, and cannot be provided with the reinforcing ribs in the transverse direction, so that the rigidity of the aluminum alloy die plate still has great defects. In order to make up for the lack of transverse rigidity, a transverse reinforcing rib is generally welded on the aluminum alloy template to be improved, and the processing cost is greatly increased. In addition, the aluminum alloy template is easy to react with concrete slurry to cause die sticking, so the aluminum alloy template usually needs to be coated with paint on the surface to avoid die sticking, which causes great inconvenience in use and increases construction difficulty and cost.
Disclosure of Invention
The invention aims to simplify the manufacturing steps of the traditional building template, increase the convenience of using the template and overcome the defect that the traditional building template is stained with a mold, and provides an ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy non-stick mold building template and a manufacturing method thereof.
The purpose of the invention can be realized by the following technical scheme: the ultrahigh-strength high-heat-conductivity semi-solid extrusion casting aluminum alloy non-stick mold building template and the manufacturing method thereof are characterized in that ultrahigh-strength high-heat-conductivity aluminum alloy is used as a material, semi-solid rheological forming equipment is used for pulping an aluminum-magnesium alloy material, semi-solid die casting equipment is used for producing the building template, the aluminum-magnesium alloy material is integrally formed, and the material and concrete have the characteristic of non-stick with semi-solid die casting technology, so that the performance and the production efficiency of the building template are improved, and the cost of the building template is reduced.
The method specifically comprises the following steps:
1) designing the building template into an integrally formed building template;
2) pulping the aluminum-magnesium alloy material by using semi-solid rheoforming equipment, and prefabricating a semi-solid blank of the required building template;
3) and (3) producing the building template by using semi-solid state die casting equipment, and pressing the semi-solid state blank into the die by using the semi-solid state die casting equipment.
Preferably, the semi-solid pulping temperature in the pulping process in the step 2) is 500-650 ℃, electromagnetic stirring is adopted in the pulping process, and the stirring time is 120-300 seconds. The control of the pulping temperature and the electromagnetic stirring is very critical to the formation of semi-solid blanks. If the temperature is too high, a high temperature difference is formed, the outer portion is rapidly solidified, and the core portion is not solidified, failing to form a uniform semi-solid blank. If the temperature is too low, the solidification point is reached without stirring, and the billet cannot be formed.
Preferably, the temperature of the integrally formed building template mold in the step 3) is 200-300 ℃, and the pressing injection speed is 1-3 m/s.
Compared with the prior art, the invention has the following beneficial effects:
1. the ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy is integrally formed, so that the production and manufacturing cost is reduced, the mass is reduced by 30 percent compared with the traditional steel template, and the installation, the disassembly and the transportation are convenient.
2. The template is not stuck to the mold, and the aluminum-magnesium alloy material is adopted and has the characteristic of non-wetting with concrete, so that the template and the concrete have good separability, no coating is required to be used on the surface, and the convenience in use of the template is improved.
3. By adopting the integral semi-solid die-casting process, the transverse and longitudinal reinforcing ribs can be obtained at the same time, the rigidity of the template is ensured, and the production efficiency of the template is improved by more than 50%.
4. The whole semi-solid die casting process can ensure that the whole precision of the template reaches 1/2000-1/1000 and is improved by more than 5 times compared with the precision of a steel template 1/200, so that the mounting precision of the building material adopting the whole die casting process is improved, the surface roughness of the disassembled building template reaches 2.8-4.8 mu m, the surface roughness of the steel template is 50 mu m, the surface roughness is improved by more than 15 times, and the convenience of wall surface painting is improved.
Detailed Description
Example 1:
a preparation method of a semisolid extrusion casting aluminum alloy non-stick mold building template with ultrahigh strength and high heat conductivity comprises the following steps:
1) modifying the traditional building template design into an integrally formed building template design;
2) the ultrahigh-strength high-heat-conductivity aluminum alloy material is subjected to pulping by using semi-solid rheoforming equipment, a blank for manufacturing the building template is prefabricated, the semi-solid pulping temperature is 625 ℃, electromagnetic stirring is adopted in the pulping process, and the pulping time is 180 s.
3) And (3) producing the building template by adopting 4000T semi-solid state die casting equipment, wherein the temperature of the die is 250 ℃, and the injection speed is 2 m/s.
4) The building template prepared by the integral semi-solid die-casting process is tested, the integral precision reaches 1/1000, and the surface roughness of the building template reaches 2.8 mu m.
Example 2:
a preparation method of a semisolid extrusion casting aluminum alloy non-stick mold building template with ultrahigh strength and high heat conductivity comprises the following steps:
1) modifying the traditional building template design into an integrally formed building template design;
2) the ultrahigh-strength high-heat-conductivity aluminum alloy material is subjected to pulping by using semi-solid rheological forming equipment, a blank for manufacturing the building template is prefabricated, the semi-solid pulping temperature is 580 ℃, electromagnetic stirring is adopted in the pulping process, and the pulping time is 150 s.
3) And (3) producing the building template by adopting 4000T semi-solid state die casting equipment, wherein the temperature of the die is 250 ℃, and the injection speed is 2 m/s.
4) The building template prepared by the integral semi-solid die-casting process is tested, the integral precision reaches 1/1500, and the surface roughness of the building template reaches 3.2 mu m.
Example 3:
a preparation method of a semisolid extrusion casting aluminum alloy non-stick mold building template with ultrahigh strength and high heat conductivity comprises the following steps:
1) modifies the traditional building template design into the integrally formed building template design
2) The ultrahigh-strength high-heat-conductivity aluminum alloy material is subjected to pulping by using semi-solid rheoforming equipment, a blank for manufacturing the building template is prefabricated, the semi-solid pulping temperature is 640 ℃, electromagnetic stirring is adopted in the pulping process, and the pulping time is 240 s.
3) The 4000T semi-solid state die casting equipment is adopted for producing the building template, the temperature of the die is 230 ℃, and the injection speed is 2.5 m/s.
4) The building template prepared by the integral semi-solid die-casting process is tested, the integral precision reaches 1/1000, and the surface roughness of the building template reaches 3.2 mu m.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (4)
1. The utility model provides a but half solid state extrusion casting aluminum alloy of super high strength high heat conduction does not stick to mould building templates which characterized in that: the ultrahigh-strength high-heat-conductivity aluminum alloy is used as a material, semi-solid rheoforming equipment is used for pulping the aluminum-magnesium alloy material, and semi-solid die casting equipment is used for producing the building template.
2. The preparation process of the ultrahigh-strength high-thermal-conductivity semi-solid extrusion casting aluminum alloy non-stick mold building template as claimed in claim 1, is characterized in that: the method specifically comprises the following steps:
1) designing the building template into an integrally formed building template;
2) pulping the ultrahigh-strength high-heat-conductivity aluminum alloy by using semi-solid rheoforming equipment, and prefabricating a semi-solid blank of the required building template;
3) the semi-solid die casting equipment is adopted for producing the building template, and the semi-solid blank is pressed into the integrally formed building template die through the semi-solid die casting equipment.
3. The method of claim 2, wherein: step 2), the semi-solid pulping temperature in the pulping process is 650 ℃, electromagnetic stirring is adopted in the pulping process, and the stirring time is 120-300 seconds.
4. The method of claim 2, wherein: the temperature of the integrally formed building template mould in the step 3) is 200-300 ℃, and the pressing injection speed is 1-3 m/s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010939844.8A CN111974964A (en) | 2020-09-09 | 2020-09-09 | Ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy casting and preparation process thereof |
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| CN202010939844.8A CN111974964A (en) | 2020-09-09 | 2020-09-09 | Ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy casting and preparation process thereof |
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| CN111974964A true CN111974964A (en) | 2020-11-24 |
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| CN202010939844.8A Pending CN111974964A (en) | 2020-09-09 | 2020-09-09 | Ultrahigh-strength high-heat-conductivity semisolid extrusion casting aluminum alloy casting and preparation process thereof |
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Citations (8)
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|---|---|---|---|---|
| US20110291074A1 (en) * | 2010-06-01 | 2011-12-01 | Palo Alto Research Center Incorporated | Semi-Polar Nitride-Based Light Emitting Structure and Method of Forming Same |
| US9463439B2 (en) * | 2009-01-30 | 2016-10-11 | General Electric Company | Templated catalyst composition and associated method |
| CN108590163A (en) * | 2018-06-04 | 2018-09-28 | 曹海平 | A kind of integrated molding aluminum alloy building template |
| CN108796317A (en) * | 2018-06-25 | 2018-11-13 | 苏州慧驰轻合金精密成型科技有限公司 | Suitable for new-energy automobile can semi-solid squeeze casting aluminium alloy and preparation method |
| CN109396380A (en) * | 2018-11-20 | 2019-03-01 | 吴江市格瑞福金属制品有限公司 | A kind of method of semisolid pressure casting preparation high thermal conductivity baking tray |
| CN209482717U (en) * | 2019-01-14 | 2019-10-11 | 广西汉瑞金属科技有限公司 | A kind of support shuttering unit of building template support system |
| CN110343916A (en) * | 2019-08-19 | 2019-10-18 | 北京科技大学 | High thermal conductivity aluminium alloy suitable for rheo-diecasting and preparation method thereof and forming technology |
| CN209799357U (en) * | 2019-04-10 | 2019-12-17 | 广西汉瑞金属科技有限公司 | Novel stair box building template unit |
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2020
- 2020-09-09 CN CN202010939844.8A patent/CN111974964A/en active Pending
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| US9463439B2 (en) * | 2009-01-30 | 2016-10-11 | General Electric Company | Templated catalyst composition and associated method |
| US20110291074A1 (en) * | 2010-06-01 | 2011-12-01 | Palo Alto Research Center Incorporated | Semi-Polar Nitride-Based Light Emitting Structure and Method of Forming Same |
| CN108590163A (en) * | 2018-06-04 | 2018-09-28 | 曹海平 | A kind of integrated molding aluminum alloy building template |
| CN108796317A (en) * | 2018-06-25 | 2018-11-13 | 苏州慧驰轻合金精密成型科技有限公司 | Suitable for new-energy automobile can semi-solid squeeze casting aluminium alloy and preparation method |
| CN109396380A (en) * | 2018-11-20 | 2019-03-01 | 吴江市格瑞福金属制品有限公司 | A kind of method of semisolid pressure casting preparation high thermal conductivity baking tray |
| CN209482717U (en) * | 2019-01-14 | 2019-10-11 | 广西汉瑞金属科技有限公司 | A kind of support shuttering unit of building template support system |
| CN209799357U (en) * | 2019-04-10 | 2019-12-17 | 广西汉瑞金属科技有限公司 | Novel stair box building template unit |
| CN110343916A (en) * | 2019-08-19 | 2019-10-18 | 北京科技大学 | High thermal conductivity aluminium alloy suitable for rheo-diecasting and preparation method thereof and forming technology |
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