CN115026258A - Die casting method for preventing die from exploding - Google Patents
Die casting method for preventing die from exploding Download PDFInfo
- Publication number
- CN115026258A CN115026258A CN202210800383.5A CN202210800383A CN115026258A CN 115026258 A CN115026258 A CN 115026258A CN 202210800383 A CN202210800383 A CN 202210800383A CN 115026258 A CN115026258 A CN 115026258A
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- die
- cooling
- cooling plate
- water
- profiling
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Links
- 238000004512 die casting Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 235000014347 soups Nutrition 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims 1
- 239000008400 supply water Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B22D17/2218—Cooling or heating equipment for dies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to a die-casting method for preventing a die from being exploded, wherein a die-casting machine is matched in place; pouring materials by a feeding machine; delaying for waiting for injection; the electromagnetic valve receives the injection signal; the electromagnetic valve is electrified to open the water supply; the cooling plate starts to cool, and the specific steps are as follows: during cooling, a profiling cooling plate is adopted, is arranged in front of a sprue bush of a die-casting die and is embedded on a fixed die core, and is controlled by an injection signal, an injection signal is sent to a relay on a cooling water valve, the relay is electrified to open the water valve, so that water is supplied to the profiling cooling plate, the temperature of the profiling cooling plate is accurately controlled at the material cake position during injection, the water supply time is 35-40 s, and the temperature of the profiling cooling plate is reduced to 520 ℃; and waiting for opening the die. The invention prolongs the service life of the cooling plate, reduces the failure rate of the die, improves the production efficiency and saves the production cost; the profiling cooling plate adopts indirect water supply, and after injection is accurately controlled, the cooling efficiency is improved by the cooling solidification temperature of the material cake, and the water consumption is saved.
Description
Technical Field
The invention belongs to the technical field of die-casting aluminum alloy machining, and mainly relates to a die-casting method for preventing die blasting.
Background
Along with the progress of social development technology, people have more and more requirements on the automobile, which is a generation of tools, so that along with the increase of automobile sales, the production cycle of die casting of aluminum alloy automobile parts is more and more strict, and the cycle of die casting products needs to be continuously optimized to meet the market requirements.
However, because the inherent conditions of aluminum alloy die casting are, for example, the melting temperature is 580-740 ℃, the temperature is high, sufficient die remaining time needs to be set after the injection is finished in the die casting production process to enable the aluminum alloy die to be fully cooled and solidified, and the aluminum alloy die can be taken out.
In the face of such difficulty, adopt the refrigerated cooling plate to solve in the current die-casting technology usually, this kind of cooling plate structure adopts monoblock steel sheet to process out the molding according to actual product structure usually, through processing two vertical diameter 10mm water courses, horizontal diameter 10mm water course, plus two slant 45 diameter 10mm water courses, and use M10 headless screw shutoff, cooling plate lower extreme right side connects into water, the left side is gone out, form the circulation water route, realize pressing and penetrate the back, the thermal quick exchange in product cake position obtains the refrigerated effect of cooling.
At present, the cooling plate structure is comparatively simple, processes the water route in the middle of after processing out the molding by the monoblock steel sheet to guarantee the cooling effect, the water route is shorter apart from runner surface distance usually, consequently leads to the wall thickness comparatively thin, because the cooling plate still needs to bear the hot erosion that comes from following after the pressure impact that aluminium liquid pours into the die cavity, the hot wearing and tearing that bring, cold and hot fatigue that mould self cooling brought in addition, so the cooling plate can often appear the problem that the fracture leaked.
Disclosure of Invention
The invention aims to provide a die-casting method for preventing a die from being exploded so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a die-casting method for preventing die explosion includes the steps that after a die-casting machine is assembled in place, a signal is transmitted to a soup feeding machine, the soup feeding machine starts pouring, a jet rod delays to start jetting after aluminum liquid in a soup ladle of the soup feeding machine is completely poured, the jetting signal is jetted to an electromagnetic valve on a water seat at any time, the electromagnetic valve receives the jetting signal to be electrified and opened to supply cooling water, a cooling plate starts to cool, and die opening can be carried out after cooling is finished; the method is characterized in that: the cooling method comprises the following specific steps:
and during cooling, a profiling cooling plate is adopted, is arranged in front of a sprue bush of the die-casting die and is embedded on the die core of the fixed die, is controlled by an injection signal, and is sent to a relay on a cooling water valve when the injection signal is sent out, the relay is electrified to open the water valve, so that water is supplied to the profiling cooling plate, the temperature of the profiling cooling plate is accurately controlled to the position of the material cake during injection, the water supply time is 35-40 s, and the temperature of the profiling cooling plate is reduced to 520 ℃.
The invention is further improved in that: the profiling cooling plate adopts a built-in profiling direct cooling stainless steel pipe water channel to separate the water channel from the plate body.
The invention is further improved in that: the distance between the cooling water pipe and the plate surface is 10 mm.
The invention is further improved in that: the machining process of the profiling cooling plate comprises the following steps: according to actual tup size and the board body of watering molding processing in advance out the profile modeling cooling plate, the board body material uses H13 type section bar, the U type groove of 11mm width is opened according to concrete molding in the board body dorsal part, U type groove is used for installing the independent water pipe of stainless steel, the body is apart from face 10mm, water pipe diameter 10mm, wall thickness 1mm, it is spacing to place 5 iron prop on the body, iron prop diameter 10mm, the material uses H13 type section bar, it is sealed with aluminium liquid casting at last, the profile modeling cooling plate adopts leading screw locking structure, use M16 screw locking.
Compared with the prior art, the invention has the beneficial effects that:
the invention prolongs the service life of the cooling plate, avoids cracking and water leakage, improves the cooling effect, reduces the failure rate of the die, improves the production efficiency and saves the production cost; the profiling cooling plate adopts indirect water supply, the cooling efficiency is improved by accurately controlling the temperature of cooling and solidifying the material cakes after injection, and the water consumption is also saved.
Drawings
FIG. 1 is a schematic structural view of a contoured cooling plate;
FIG. 2 is a schematic structural view of a water pipe;
reference numbers in the figures: 1-plate body, 2-U-shaped groove, 3-water pipe, 4-iron column, 5-preposed screw and 6-stainless steel joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The embodiment provides a technical scheme: a die-casting method for preventing die material explosion comprises the following steps: after a die casting machine is matched with a die in place, transmitting a signal to a soup feeding machine, pouring materials into the soup feeding machine, starting injection after an injection rod delays to wait for aluminum liquid in a soup ladle of the soup feeding machine to be completely poured, injecting an injection signal to an electromagnetic valve on a water seat at any time, opening the electromagnetic valve to supply cooling water after the electromagnetic valve receives the injection signal to obtain electricity, cooling a cooling plate, and opening the die after cooling is finished; the cooling method comprises the following specific steps:
during cooling, a profiling cooling plate is adopted, the profiling cooling plate is arranged in front of a sprue bush of a die-casting die and is embedded on a die core of a fixed die, through injection signal control, an injection signal is given to a relay on a cooling water valve, the relay is electrified to open the water valve, water is supplied to the profiling cooling plate, the temperature of a material cake is accurately controlled during injection by the profiling cooling plate, the water supply time is 35-40 s, the temperature of the profiling cooling plate is reduced to 520 ℃, the profiling cooling plate adopts a built-in profiling direct-cooling stainless steel pipe water channel to separate the water channel from a plate body, and the distance between the cooling water pipe and the plate surface is 10 mm.
The invention is different from the process of directly processing the water channel in the direct cooling plate in the traditional process, the profiling cooling plate adopts the built-in profiling direct cooling stainless steel pipe water channel to separate the water channel from the plate body, compared with the prior art that the cooling plate structure needs to consider the problem of the safe distance of the wall thickness of the water channel of the plate body, the distance between the water channel and the plate surface is usually required to be more than or equal to 20mm, the cooling efficiency is reduced due to the increase of the heat transfer distance during cooling, the profiling cooling plate structure in the invention ensures that the cooling water pipe can be optimized to the position 10mm away from the plate surface, the inner water channel is protected by the stainless steel water pipe, even if the plate body section bar bears pressure impact when molten aluminum is injected into the cavity, thermal erosion and thermal abrasion caused by the pressure impact and cold and hot fatigue caused by cooling of the die, the plate body inner water channel cannot be damaged due to cracking, and the problem that cooling water is exposed due to cracking of the plate body is solved.
The machining process of the profiling cooling plate comprises the following steps: according to actual tup size and water the molding and process plate body 1 of profile modeling cooling plate in advance, plate body material uses H13 type material, the U type groove 2 of 11mm width is opened according to concrete molding in the plate body dorsal part, U type groove 2 is used for installing the independent water pipe 3 of stainless steel, the body is apart from face 10mm, 3 diameters of water pipe 10mm, wall thickness 1mm, be convenient for heat exchange plays rapid cooling's effect, water pipe 3's both ends welding stainless steel joint 6, it is spacing to place 5 iron prop 4 on the body, 4 diameters of iron prop 10mm (specifically select according to the water pipe diameter), the material uses H13 type material, seal with aluminium liquid casting at last, the profile modeling cooling plate adopts leading 5 locking structures of screw, use M16 screw locking, this structure makes things convenient for quick detach change on the machine.
The invention solves the problem that the cold plate is cracked to cause the cooling water to be exposed in the existing production process, thereby prolonging the service life of the cooling plate, simultaneously reducing the failure rate of the die, improving the production efficiency and saving the production cost. At present, experiments prove that the profiling cooling plate is used, the temperature of a material inlet is measured to be about 520 ℃ in actual production, the difference between the measured temperature and the measured temperature of the cooling plate used before is about 520 ℃, in the actual service life test, the service life of the new cooling plate is 10 ten thousand times, although cracking occurs, the water leakage is not caused, the water leakage service life of the cooling plate 2 ten thousand times before is improved by 8 ten thousand times, the new cooling plate adopts indirect water supply, the temperature of cooling and solidification of a material cake after injection is accurately controlled, the cooling efficiency is improved, and the water consumption is also saved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A die-casting method for preventing die material explosion comprises the following steps: after a die casting machine is matched with a die in place, transmitting a signal to a soup feeding machine, pouring materials into the soup feeding machine, starting injection after an injection rod delays for waiting until aluminum liquid in a soup ladle of the soup feeding machine is completely poured out, injecting an injection signal at any time to an electromagnetic valve on a water seat, receiving the injection signal by the electromagnetic valve, turning on the electromagnetic valve to supply water for cooling, starting cooling by a cooling plate, and opening the die after cooling is finished; the method is characterized in that: the cooling method comprises the following specific steps:
and during cooling, a profiling cooling plate is adopted, is arranged in front of a sprue bush of the die-casting die and is embedded on the die core of the fixed die, is controlled by an injection signal, and is sent to a relay on a cooling water valve when the injection signal is sent out, the relay is electrified to open the water valve, so that water is supplied to the profiling cooling plate, the temperature of the profiling cooling plate is accurately controlled to the position of the material cake during injection, the water supply time is 35-40 s, and the temperature of the profiling cooling plate is reduced to 520 ℃.
2. The die-casting method for preventing die popping as claimed in claim 1, wherein: the profiling cooling plate adopts a built-in profiling direct cooling stainless steel pipe water channel to separate the water channel from the plate body.
3. The die-casting method for preventing die popping as claimed in claim 1, wherein: the distance between the cooling water pipe and the plate surface is 10 mm.
4. The die-casting method for preventing die popping as claimed in claim 1, wherein: the machining process of the profiling cooling plate comprises the following steps: according to actual tup size and water the plate body of molding pre-processing out the profile modeling cooling plate, the plate body material uses H13 type material, the U type groove of 11mm width is opened according to concrete molding in the plate body dorsal part, U type groove is used for installing the independent water pipe of stainless steel, the body is apart from face 10mm, water pipe diameter 10mm, wall thickness 1mm, it is spacing to place 5 iron prop on the body, iron prop diameter 10mm, the material uses H13 type material, seal with aluminium liquid casting at last, the profile modeling cooling plate adopts leading screw locking structure, use M16 screw locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210800383.5A CN115026258B (en) | 2022-07-08 | 2022-07-08 | Die casting method for preventing die explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210800383.5A CN115026258B (en) | 2022-07-08 | 2022-07-08 | Die casting method for preventing die explosion |
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| Publication Number | Publication Date |
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| CN115026258A true CN115026258A (en) | 2022-09-09 |
| CN115026258B CN115026258B (en) | 2023-10-24 |
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|---|---|---|---|---|
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| CN112404395A (en) * | 2020-10-10 | 2021-02-26 | 浙江华朔科技股份有限公司 | Cooling method of new energy automobile motor shell die-casting die |
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2022
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| CN115026258B (en) | 2023-10-24 |
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