CN110541561B - Magnesium-aluminum alloy building template and forming method thereof - Google Patents
Magnesium-aluminum alloy building template and forming method thereof Download PDFInfo
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- CN110541561B CN110541561B CN201910780290.9A CN201910780290A CN110541561B CN 110541561 B CN110541561 B CN 110541561B CN 201910780290 A CN201910780290 A CN 201910780290A CN 110541561 B CN110541561 B CN 110541561B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 62
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004512 die casting Methods 0.000 claims abstract description 45
- 238000007493 shaping process Methods 0.000 claims abstract description 38
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000000243 solution Substances 0.000 claims abstract description 9
- 238000004381 surface treatment Methods 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000002791 soaking Methods 0.000 claims description 10
- 239000011344 liquid material Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 230000003064 anti-oxidating effect Effects 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910018125 Al-Si Inorganic materials 0.000 claims description 2
- 229910018520 Al—Si Inorganic materials 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 229910019142 PO4 Inorganic materials 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 3
- 239000010452 phosphate Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000009489 vacuum treatment Methods 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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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
- B22D17/14—Machines with evacuated die cavity
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/06—Forming boards or similar elements the form surface being of metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a magnesium-aluminum alloy building template and a forming method thereof, wherein the magnesium-aluminum alloy building template is formed by adopting the following operation steps: s1: assembling, namely mounting the template mould on a die casting machine; s2: preparing materials, namely adding magnesium-aluminum alloy liquid and granules into a die cavity of a cold die casting machine; s3: injecting materials; s4: die casting; s5: shaping; s6: and (6) surface treatment. Compared with the traditional aluminum alloy template, the weight of the produced building template is reduced by 35-45%, vacuum treatment is carried out during material injection, the compactness of the internal structure of the template can be further increased through pressure forming, the structural strength of the template is increased, the surface of the template is passivated by using a phosphate solution and then is sprayed, the oxidation resistance of the building template is effectively improved, the adhesive force is increased, the friction resistance and the falling and smashing resistance are realized, the service life is prolonged, the adhesive force of the putty for the building wall and the wall is greatly increased through forming a net structure on the surface of the template, the subsequent treatment on the wall is facilitated, and the labor cost is reduced.
Description
Technical Field
The invention belongs to the technical field of magnesium-aluminum alloy casting, and particularly relates to an aluminum alloy building template and a forming method thereof.
Background
When the traditional building template is produced, the method mainly comprises the following steps of placing a die on a high-pressure or low-pressure die casting machine, melting magnesium alloy materials to 678-685-degree liquid through a quantitative furnace, injecting the magnesium alloy liquid into a die cavity through a material guide pipe of a quantitative pump, exhausting, deslagging, vacuumizing, injecting and molding by adopting the die casting machine. The building template produced by the method has few air holes in the interior, otherwise the use strength of the building template is influenced, the produced building template has a plane grid structure, the grid depth is 0.5-1MM, otherwise the formed building surface is also a smooth plane, and the putty coating treatment on the wall body in the later period is not facilitated.
Disclosure of Invention
The invention aims to provide a magnesium-aluminum alloy building template and a forming method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a magnesium-aluminum alloy building templates, includes the panel, the back edge integration of panel is equipped with the hem, the back of panel still integration is equipped with indulges strengthening rib and violently strengthening rib, the front of panel is equipped with the net face.
Preferably, the folded edge is provided with through holes at equal intervals.
Preferably, the transverse strengthening ribs are provided with bolt holes.
A magnesium-aluminum alloy building template forming method comprises the following operation steps:
s1: assembling, namely installing a template die on a die casting machine, connecting the template die with a vacuumizing device, a die temperature machine, a cooler, a constant delivery pump and a cold die casting machine, and preheating the template die by the die temperature machine;
s2: preparing materials, namely adding a magnesium-aluminum alloy liquid material into a cold type die casting machine for heating, preventing oxygen from entering by utilizing protective gas, replacing air in the cold type die casting machine, and then starting to heat, wherein the temperature control process is as follows:
a. preheating, raising the temperature to 400-450 ℃ at the temperature raising speed of 8-10 ℃/min, and preserving the temperature for 8-10 minutes;
b. melting, increasing the temperature to 678-685 ℃ at the temperature-increasing speed of 6-8 ℃/min, and preserving the temperature for later use;
s3: injecting materials, starting vacuumizing equipment in advance, vacuumizing the interior of a template die to avoid forming oxides in the magnesium-aluminum alloy molten liquid, adjusting the injection filling of a cold die casting machine within 3 seconds, injecting the magnesium-aluminum alloy molten liquid with the injection speed of 5-10m/s, and injecting the specified amount of the magnesium-aluminum alloy molten liquid into a die cavity preheated by 220 degrees and 250 degrees under the monitoring of a quantitative pump;
s4: die-casting, namely adjusting the working injection specific pressure of the die-casting machine to 85-160 MPa/cubic centimeter, the injection speed to 5-10m/s, and the pressure maintaining time to be 0.1-5s, after the die-casting is finished, taking out the building template by using a mechanical arm, cooling the die by using a cooling release agent, and preparing the next die after the die is cooled for 5 seconds;
s5: shaping, namely placing the building template into a shaping mold, pressurizing and shaping by utilizing a shaping and modulating oil press at the pressure of 60-120MPa for 1-3s, and after pressurizing and shaping, placing the building template into a cooling tank for cooling and shaping, and keeping the flatness after shaping;
s6: and (2) surface treatment, namely removing water gaps and burrs by using a CNC (computer numerical control), soaking by using a treating agent, passivating the building template, forming a layer of chemical protective film on the surface of the building template, spraying a layer of anti-oxidation paint with the thickness of 50-80 microns, and drying.
Preferably, the preheating temperature of the template mold in the step S1 is 180-.
Preferably, in the step S2, the magnesium-aluminum alloy liquid material is selected from AZ (Mg-Al-Zn-Mn), AM (Mg-Al-Mn), AS (Mg-Al-Si), and AE (Mg-Al-RE) series.
Preferably, the treating agent in the step S6 is a passivation solution with the concentration of 35-40%, the temperature of the treating agent is 45-60 ℃, and the soaking treatment is adopted for 2-5 minutes.
The invention has the technical effects and advantages that:
compared with the traditional aluminum alloy template, the building template produced by adopting the magnesium-aluminum alloy as the raw material has the advantages that the weight is reduced by 30-45%, the vacuum treatment is carried out during material injection, bubbles in the template structure are effectively avoided, the compactness of the internal structure of the template can be further increased through the pressurization and shaping, the structural strength of the template is increased, the surface of the template is passivated by using a phosphate solution, the oxidation resistance of the building template is effectively improved, the service life is prolonged, the adhesive force of putty and a wall body is greatly increased through the formation of a net-shaped structure on the surface of the template, the subsequent treatment of the wall surface is facilitated, and the labor cost is reduced.
Drawings
FIG. 1 is a schematic view of the back side structure of a magnesium aluminum alloy building panel;
FIG. 2 is a schematic view of the cross-sectional structure F-F in FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure G-G of FIG. 1;
FIG. 4 is a schematic front view of a magnesium aluminum alloy building template;
FIG. 5 is a schematic front side view of a magnesium aluminum alloy building panel;
FIG. 6 is a schematic view of the right side of a magnesium aluminum alloy building panel;
FIG. 7 is a schematic structural view of a first embodiment of a grid surface of a magnesium-aluminum alloy building template;
FIG. 8 is a schematic structural view of a second embodiment of a grid surface of a magnesium-aluminum alloy building template;
FIG. 9 is a schematic structural view of a third embodiment of a grid surface of a magnesium-aluminum alloy building template;
FIG. 10 is a schematic view of a fourth embodiment of a grid surface of a magnesium-aluminum alloy building template;
fig. 11 is a flow chart of a forming process of the magnesium-aluminum alloy building template.
In the figure: 1 folded edge, 2 bolt holes, 3 longitudinal reinforcing ribs, 4 transverse reinforcing ribs, 5 through holes and 6 grid surfaces.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-11, the magnesium-aluminum alloy building template comprises a panel, wherein a folded edge 1 is integrally arranged at the edge of the back surface of the panel, a longitudinal reinforcing rib 3 and a transverse reinforcing rib 4 are also integrally arranged on the back surface of the panel, and a grid surface 6 is arranged on the front surface of the panel.
The folded edge 1 is provided with through holes 5 at equal intervals.
The transverse strengthening ribs 4 are provided with bolt holes 2.
Example 1
A magnesium-aluminum alloy building template forming method comprises the following operation steps:
s1: assembling, namely installing a template die on a die casting machine, connecting the template die with a vacuumizing device, a die temperature machine, a cooler, a constant delivery pump and a cold die casting machine, and preheating the template die by the die temperature machine;
s2: preparing materials, namely adding a magnesium-aluminum alloy liquid material into a cold type die casting machine for heating, preventing oxygen from entering by utilizing protective gas, replacing air in the cold type die casting machine, and then starting to heat, wherein the temperature control process is as follows:
a. preheating, raising the temperature to 400 ℃ at the temperature raising speed of 8 ℃/min, and keeping the temperature for 8 minutes;
b. melting, increasing the temperature to 678 ℃ at the temperature rising speed of 6 ℃/min, and keeping the temperature for later use;
s3: injecting materials, starting vacuumizing equipment in advance, vacuumizing the interior of a template die to avoid forming oxides in the magnesium-aluminum alloy molten liquid, adjusting the injection filling of a cold die casting machine within 3 seconds, injecting the magnesium-aluminum alloy molten liquid with the injection speed of 5m/s, and injecting a specified amount of the magnesium-aluminum alloy molten liquid into a die cavity preheated to 220 ℃ under the monitoring of a quantitative pump;
s4: die-casting, namely adjusting the working injection specific pressure of a die-casting machine to 85 MPa/cubic centimeter, the injection speed to 5m/s and the pressure maintaining time to be 0.1s, taking out the building template by using a mechanical arm after die-casting is finished, cooling the die by using a cooling release agent, and preparing the next die after the die is cooled for 5 seconds;
s5: shaping, namely placing the building template into a shaping mold, performing pressure shaping by using a shaping and modulating oil press at the pressure of 60MPa for 1s, and after the pressure shaping, placing the building template into a cooling tank for cooling shaping, and keeping the flatness after the pressure shaping;
s6: and (3) surface treatment, namely firstly removing water gaps and burrs by using a CNC (computer numerical control), then soaking by using a treating agent, passivating the building template, forming a layer of chemical protective film on the surface of the building template, then spraying a layer of anti-oxidation paint with the thickness of 50um, and drying.
In step S1, the preheating temperature of the template mold is 180 ℃, and the front template mold is provided with a grid for forming a corresponding grid with a depth of 0.5MM on the surface of the molded template.
In the step S2, the magnesium-aluminum alloy liquid material is selected from AZ (Mg-Al-Zn-Mn) series.
In the step S6, the treating agent is a passivating solution with the concentration of 35%, the temperature of the treating agent is 45 ℃, and the soaking treatment is adopted, wherein the treating time is 2 minutes.
Example 2
A magnesium-aluminum alloy building template forming method comprises the following operation steps:
s1: assembling, namely installing a template die on a die casting machine, connecting the template die with a vacuumizing device, a die temperature machine, a cooler, a constant delivery pump and a cold die casting machine, and preheating the template die by the die temperature machine;
s2: preparing materials, namely adding a magnesium-aluminum alloy liquid material into a cold type die casting machine for heating, preventing oxygen from entering by utilizing protective gas, replacing air in the cold type die casting machine, and then starting to heat, wherein the temperature control process is as follows:
a. preheating, namely raising the temperature to 425 ℃ at the temperature rise speed of 9 ℃/min, and keeping the temperature for 9 minutes;
b. melting, heating to 681 deg.C at a temperature rise rate of 7 deg.C/min, and keeping the temperature;
s3: injecting materials, starting vacuumizing equipment in advance, vacuumizing the interior of a template die to avoid forming oxides in the magnesium-aluminum alloy molten liquid, adjusting the injection filling of a cold die casting machine within 3 seconds, injecting the magnesium-aluminum alloy molten liquid with the injection speed of 7m/s, and injecting a specified amount of the magnesium-aluminum alloy molten liquid into a die cavity preheated to 235 ℃ under the monitoring of a quantitative pump;
s4: die-casting, namely adjusting the working injection specific pressure of a die-casting machine to be 120 MPa/cubic centimeter, the injection speed to be 8m/s and the pressure maintaining time to be 3s, taking out the building template by using a mechanical arm after die-casting is finished, cooling the die by using a cooling release agent, and preparing the next die after the die is cooled for 5 seconds;
s5: shaping, namely placing the building template into a shaping mold, pressurizing and shaping by utilizing a shaping modulation oil press at the pressure of 90MPa for 2s, and after pressurizing and shaping, placing the building template into a cooling tank for cooling and shaping, and keeping the flatness after the shaping;
s6: and (3) surface treatment, namely firstly removing water gaps and burrs by using a CNC (computer numerical control), then soaking by using a treating agent, passivating the building template, forming a layer of chemical protective film on the surface of the building template, then spraying a layer of anti-oxidation paint with the thickness of 65um, and drying.
In step S1, the preheating temperature of the template mold is 210 ℃, and the front template mold is provided with a grid for forming a corresponding grid with a depth of 0.7MM on the surface of the molded template.
In the step S2, the magnesium-aluminum alloy liquid material is selected from the AM (Mg-Al-Mn) series.
In the step S6, the treating agent is a passivating solution with the concentration of 35-40%, the temperature of the treating agent is 45-60 ℃, and the soaking treatment is adopted for 2-5 minutes.
Example 3
A magnesium-aluminum alloy building template forming method comprises the following operation steps:
s1: assembling, namely installing a template die on a die casting machine, connecting the template die with a vacuumizing device, a die temperature machine, a cooler, a constant delivery pump and a cold die casting machine, and preheating the template die by the die temperature machine;
s2: preparing materials, namely adding a magnesium-aluminum alloy liquid material into a cold type die casting machine for heating, preventing oxygen from entering by utilizing protective gas, replacing air in the cold type die casting machine, and then starting to heat, wherein the temperature control process is as follows:
a. preheating, namely raising the temperature to 450 ℃ at the temperature rise speed of 10 ℃/min, and keeping the temperature for 10 minutes;
b. melting, increasing the temperature to 685 ℃ at the heating rate of 8 ℃/min, and keeping the temperature for later use;
s3: injecting materials, namely starting vacuumizing equipment in advance, vacuumizing the interior of a template die to prevent oxides from forming in the magnesium-aluminum alloy molten liquid, adjusting the injection filling of a cold die casting machine within 3 seconds, injecting the molten magnesium-aluminum alloy into a die cavity preheated to 250 ℃ under the monitoring of a quantitative pump at an injection speed of 10m/s, and injecting a specified amount of the magnesium-aluminum alloy molten liquid;
s4: die-casting, namely adjusting the working injection specific pressure of a die-casting machine to 160 MPa/cubic centimeter, the injection speed to 10m/s and the pressure maintaining time to 5s, taking out the building template by using a mechanical arm after die-casting is finished, cooling the die by using a cooling release agent, and preparing the next die after the die is cooled for 5 s;
s5: shaping, namely placing the building template into a shaping mold, performing pressure shaping by using a shaping and modulating oil press at the pressure of 120MPa for 3s, and after the pressure shaping, placing the building template into a cooling tank for cooling shaping, and keeping the flatness after the pressure shaping;
s6: and (3) surface treatment, namely firstly removing water gaps and burrs by using a CNC (computer numerical control), then soaking by using a treating agent, passivating the building template, forming a layer of chemical protective film on the surface of the building template, then spraying a layer of anti-oxidation paint with the thickness of 80um, and drying.
In step S1, the preheating temperature of the template mold is 240 ℃, and the front template mold is provided with a grid for forming a corresponding grid with a depth of 1MM on the surface of the molded template.
In the step S2, the selected magnesium-aluminum alloy is an AE (Mg-Al-RE) series.
In the step S6, the treating agent is a passivating solution with the concentration of 40%, the temperature of the treating agent is 60 ℃, and the soaking treatment is adopted, and the treating time is 5 minutes.
As shown in fig. 1-6, the magnesium-aluminum alloy building template produced by the invention has the length of 1200mm, the width of 400mm and the maximum thickness of 65mm, the thickness of the template material is 3.5-3.8mm, holes are arranged on the side edge of the magnesium-aluminum alloy building template, reinforcing ribs are arranged in the inner cavity of the magnesium-aluminum alloy building template, and the front surface of the magnesium-aluminum alloy building template is provided with grids of 10mm × 10mm × 1 mm.
Compared with the traditional aluminum alloy template, the building template produced by adopting the magnesium-aluminum alloy as the raw material has the advantages that the weight is reduced by 30-45%, the vacuum treatment is carried out during material injection, bubbles in the template structure are effectively avoided, the compactness of the internal structure of the template can be further increased through the pressurization and shaping, the structural strength of the template is increased, the surface of the template is passivated by using a phosphate solution, the oxidation resistance of the building template is effectively improved, the service life is prolonged, the adhesive force of putty and a wall body is greatly increased through the formation of a net-shaped structure on the surface of the template, and the subsequent treatment of the wall surface is facilitated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. Magnesium aluminum alloy building templates, including the panel, its characterized in that: the edge of the back of the panel is integrally provided with a folded edge (1), the back of the panel is also integrally provided with a longitudinal reinforcing rib (3) and a transverse reinforcing rib (4), and the front of the panel is provided with a grid surface (6);
through holes (5) are arranged on the folded edge (1) at equal intervals;
the transverse strengthening ribs (4) are provided with bolt holes (2);
the forming method of the magnesium-aluminum alloy building template comprises the following operation steps:
s1: assembling, namely installing a template die on a die casting machine, connecting the template die with a vacuumizing device, a die temperature machine, a cooler, a constant delivery pump and a cold die casting machine, and preheating the template die by the die temperature machine;
s2: preparing materials, namely adding a magnesium-aluminum alloy liquid material into a cold type die casting machine for heating, preventing oxygen from entering by utilizing protective gas, replacing air in the cold type die casting machine, and then starting to heat, wherein the temperature control process is as follows:
a. preheating, raising the temperature to 400-450 ℃ at a temperature-raising speed of 8-10 ℃/min, and preserving the heat for 8-10 minutes;
b. melting, increasing the temperature to 678-685 ℃ at the temperature-increasing speed of 6-8 ℃/min, and preserving the temperature for later use;
s3: injecting materials, starting vacuumizing equipment in advance, vacuumizing the interior of a template die to avoid forming oxides in the magnesium-aluminum alloy molten liquid, adjusting the injection filling of a cold die casting machine within 3 seconds, injecting the magnesium-aluminum alloy molten liquid with the injection speed of 5-10m/s, and injecting the specified amount of the magnesium-aluminum alloy molten liquid into a die cavity preheated by 220 degrees and 250 degrees under the monitoring of a quantitative pump;
s4: die-casting, namely adjusting the working injection specific pressure of the die-casting machine to 85-160 MPa/cubic centimeter, the injection speed to 5-10m/s, and the pressure maintaining time to be 0.1-5s, after the die-casting is finished, taking out the building template by using a mechanical arm, cooling the die by using a cooling release agent, and preparing the next die after the die is cooled for 5 seconds;
s5: shaping, namely placing the building template into a shaping mold, pressurizing and shaping by utilizing a shaping and modulating oil press at the pressure of 60-120MPa for 1-3s, and after pressurizing and shaping, placing the building template into a cooling tank for cooling and shaping, and keeping the flatness after shaping;
s6: and (2) surface treatment, namely removing water gaps and burrs by using a CNC (computer numerical control), soaking by using a treating agent, passivating the building template, forming a layer of chemical protective film on the surface of the building template, spraying a layer of anti-oxidation paint with the thickness of 50-80 microns, and drying.
2. The magnesium aluminum alloy building template of claim 1, wherein: the preheating temperature of the template mold in the step S1 is 180-240 ℃, and the grid is arranged on the front template mold and is used for forming a corresponding grid with the depth of 0.5-1MM on the surface of the molded template.
3. The magnesium aluminum alloy building template of claim 1, wherein: in the step S2, the magnesium-aluminum alloy liquid material is selected from one or more of AZ (Mg-Al-Zn-Mn), AM (Mg-Al-Mn), AS (Mg-Al-Si) and AE (Mg-Al-RE) series.
4. The magnesium aluminum alloy building template of claim 1, wherein: in the step S6, the treating agent is a passivating solution with the concentration of 35-40%, the temperature of the treating agent is 45-60 ℃, and the soaking treatment is adopted for 2-5 minutes.
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| CN111335624A (en) * | 2020-04-03 | 2020-06-26 | 福建省闽发铝业股份有限公司 | Magnesium-aluminum alloy building template and forming method thereof |
| CN111979460A (en) * | 2020-07-15 | 2020-11-24 | 湖南云轮科技有限公司 | High-toughness magnesium alloy material building template and preparation method thereof |
| CN112589065B (en) * | 2020-12-23 | 2022-02-11 | 宁波勋辉电器有限公司 | Manufacturing method of magnesium alloy top cover of automobile central controller |
| CN112589396B (en) * | 2020-12-23 | 2022-12-06 | 宁波勋辉电器有限公司 | Manufacturing method of magnesium alloy display screen backboard for vehicle |
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| CN204081466U (en) * | 2014-07-30 | 2015-01-07 | 莆田市荔城区永顺金属制品有限公司 | A kind of aluminum alloy building template |
| CN104878374A (en) * | 2015-06-25 | 2015-09-02 | 潘应生 | Aluminum alloy low chromium passivation solution and preparation method of passivation solution |
| CN108277369A (en) * | 2018-02-09 | 2018-07-13 | 兰州理工大学 | A kind of high duralumin, hard alumin ium alloy processing technology of lightweight |
| CN208347298U (en) * | 2018-06-04 | 2019-01-08 | 曹海平 | It is integrally formed aluminum alloy building template unit |
| CN210828311U (en) * | 2019-08-22 | 2020-06-23 | 广东文达镁业科技股份有限公司 | Magnesium-aluminum alloy building template |
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