CN115026258B - Die casting method for preventing die explosion - Google Patents
Die casting method for preventing die explosion Download PDFInfo
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- CN115026258B CN115026258B CN202210800383.5A CN202210800383A CN115026258B CN 115026258 B CN115026258 B CN 115026258B CN 202210800383 A CN202210800383 A CN 202210800383A CN 115026258 B CN115026258 B CN 115026258B
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- Prior art keywords
- die
- cooling plate
- cooling
- water
- profiling
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- 238000004512 die casting Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004880 explosion Methods 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 235000014347 soups Nutrition 0.000 claims abstract description 14
- 239000000498 cooling water Substances 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009172 bursting Effects 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
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003754 machining 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
- 230000000630 rising effect Effects 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
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 application relates to a die casting method for preventing die explosion, which comprises the steps of die casting a die in place; pouring materials for a soup machine; delay waiting for injection; the electromagnetic valve receives the injection signal; the electromagnetic valve is powered on to open water supply; the cooling plate begins to cool, and the specific steps are as follows: the method comprises the steps that a profiling cooling plate is adopted during cooling, the profiling cooling plate is arranged in front of a pouring sleeve of a die casting die and is inlaid on a die core of a fixed die, a relay on a cooling water valve is given out by a shot signal under the control of a shot signal, 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 shot of the profiling cooling plate, the water supply time is 35-40 seconds, and the temperature of the profiling cooling plate is reduced to 520 ℃; and waiting for die opening. The application 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 due to the cooling solidification temperature of the material cake, and the water consumption is saved.
Description
Technical Field
The application belongs to the technical field of die-casting aluminum alloy machining, and mainly relates to a die-casting method for preventing die explosion.
Background
With the progress of the social development technology, the requirements of people on the next-generation tool of the automobile are also increasing, so that with the rising of the sales of the automobile, the production beats of the die casting of aluminum alloy automobile parts are also becoming stricter, and the beats of the die casting products are required to be optimized continuously to meet the market requirements.
However, because the inherent condition of aluminum alloy die casting, such as its melting temperature is 580 ~ 740 ℃, and the temperature is higher, must set up sufficient stay mould time after the injection is finished in the die casting production process and make it fully cool down solidification, can take out, if the cooling time is insufficient can appear bursting the material phenomenon generally, bursting the risk that the material crushed the mould is great, so this has become one of the difficulties of optimizing die casting beat yet, and the runner receives aluminium liquid high temperature impact and die cavity pressure impact often to appear sticking aluminium in the long-time production process in with the material sleeve mouth junction, lead to die opening drawing deformation stock cake, influence automatic get a die casting island placement precision, also influence production efficiency.
In the face of such difficulty, the cooling plate with cooling is usually adopted in the existing die casting technology to solve, the structure of the cooling plate is usually processed by adopting a whole steel plate according to the structure of an actual product, two water channels with the diameter of 10mm are processed vertically, one water channel with the diameter of 10mm is transversely arranged, two water channels with the diameter of 10mm are additionally arranged, the two water channels with the diameter of 45 degrees are plugged by using M10 headless screws, the right side of the lower end of the cooling plate is connected with water inlet, and water is discharged from the left side, so that a circulating water channel is formed, and after injection, the effect of cooling is achieved by rapid exchange of the heat of the material cake position of the product.
At present, the cooling plate structure is simpler, the middle processing water route after the molding is processed 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 single, because the cooling plate still bears the hot erosion, the hot wear that bring along with it after the pressure impact from the aluminium liquid is poured into in the die cavity into, and cold and hot fatigue that the mould self cooling brought still, so the problem that the cooling plate can often appear cracking and leak.
Disclosure of Invention
The application aims to provide a die casting method for preventing die explosion, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present application provides the following technical solutions: a die casting method for preventing die explosion is characterized in that after a die casting machine is assembled in place, a signal is transmitted to a soup feeder, the soup feeder starts to pour, a shooting rod starts to shoot after aluminum liquid in a soup ladle of the soup feeder is completely poured out in a delayed manner, a solenoid valve for shooting the shot signal to a water seat is shot at any time, the solenoid valve receives the shot signal to be electrified and is opened to supply cooling water, a cooling plate starts to cool, and the die can be opened after cooling is completed; the method is characterized in that: the specific steps of cooling are as follows:
the profiling cooling plate is arranged in front of the pouring sleeve of the die casting die and is inlaid on the die core of the fixed die, the relay on the cooling water valve is controlled by the injection signal, 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 when the profiling cooling plate is injected, the water supply time is 35-40 seconds, and the temperature of the profiling cooling plate is reduced to 520 ℃.
The application further improves that: the profiling cooling plate adopts a built-in profiling direct cooling stainless steel pipe waterway to separate a water channel from the plate body.
The application further improves that: the cooling water pipe is 10mm away from the plate surface.
The application further improves that: the processing technology of the profiling cooling plate is as follows: according to actual hammer head size and runner molding the plate body of processing profile modeling cooling plate in advance, the plate body material uses H13 type material, the U type groove of 11mm width is opened according to specific molding to the plate body back side, the U type groove is used for installing the independent water pipe of stainless steel, the pipe body is apart from the face 10mm, water pipe diameter 10mm, wall thickness 1mm, place 5 iron poles spacing on the pipe body, iron pole diameter 10mm, the material uses H13 type material, at last with aluminium liquid casting seal, profile modeling cooling plate adopts leading screw locking structure, use M16 screw locking.
Compared with the prior art, the application has the beneficial effects that:
the application improves the service life of the cooling plate, does not crack or leak water, 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, and after injection is accurately controlled, the cooling efficiency is improved due to the cooling solidification temperature of the material cake, and meanwhile, the water consumption is also saved.
Drawings
FIG. 1 is a schematic structural view of a contoured cooling plate;
FIG. 2 is a schematic view of a water pipe;
reference numerals in the drawings: 1-plate body, 2-U type groove, 3-water pipe, 4-iron column, 5-front screw, 6-stainless steel joint.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The embodiment provides a technical scheme: a die casting method for preventing die explosion comprises the following steps: after the die casting machine is assembled in place, transmitting a signal to the soup feeder, starting pouring the soup feeder, delaying the injection rod to start injection after aluminum liquid in a soup ladle of the soup feeder is completely poured out, injecting injection signals at any time to an electromagnetic valve on a water seat, opening the electromagnetic valve to supply cooling water after receiving the injection signals, starting cooling by a cooling plate, and opening the die after cooling is finished; the specific steps of cooling are as follows:
the profiling cooling plate is arranged before the pouring gate sleeve of the die casting die, is inlaid on the die core of the fixed die, is controlled by injection signals, gives out a relay on a cooling water valve at the injection signals, and is powered on to open the water valve to supply water to the profiling cooling plate, so that the temperature of a material cake is accurately controlled when the profiling cooling plate is injected, the water supply time is 35-40 seconds, the temperature of the profiling cooling plate is reduced to 520 ℃, a water channel is separated from a plate body by adopting a built-in profiling direct cooling stainless steel water channel, and the cooling water pipe is 10mm away from the plate surface.
Compared with the prior art that the water channel is separated from the plate body by adopting a water channel with a built-in profiling direct cooling stainless steel pipe, the water channel is required to be considered for the cooling plate structure of the prior art, the wall thickness safety distance of the water channel of the plate body is required to be more than or equal to 20mm, the cooling efficiency is reduced due to the fact that the heat transfer distance is increased during cooling, the inner water channel is protected by the stainless steel pipe, and even if the plate body profile is subjected to hot erosion and hot abrasion caused by pressure impact and hot and cold fatigue caused by self cooling of a die when the aluminum liquid is injected into a die cavity, the water channel in the plate body is not damaged due to cracking, so that the problem that the cooling water is exposed due to the cracking of the plate body is solved.
The processing technology of the profiling cooling plate is as follows: according to actual hammer head size and runner molding the plate body 1 of processing profile modeling cooling plate in advance, the plate body material uses H13 model material, the plate body back side is according to the U type groove 2 of specific molding open 11mm width, U type groove 2 is used for installing the independent water pipe 3 of stainless steel, the body is apart from the face 10mm, water pipe 3 diameter 10mm, wall thickness 1mm, the effect of being convenient for heat exchange plays quick cooling, the welding of the both ends head of water pipe 3 stainless steel connects 6, place 5 iron studs 4 spacing on the body, iron studs 4 diameter 10mm (specifically select according to the water pipe diameter), the material uses H13 model material, it is closed to cast with the molten aluminum at last, profile modeling cooling plate adopts leading screw 5 locking structure, use M16 screw locking, this structure makes things convenient for quick detach and changes on the machine.
The application solves the problem that cooling water is exposed due to cracking of the cold plate in the existing production process, thereby prolonging the service life of the cold plate, reducing the failure rate of the die, improving the production efficiency and saving the production cost. The current experiment proves that the profiling cooling plate is used, the temperature of a measured feeding port is about 520 ℃ in actual production, the difference between the measured feeding port and the measured temperature of the cooling plate is about 520 ℃ in the prior art, and the measured feeding port and the measured temperature of the cooling plate are small, in the actual service life test, the service life of the novel cooling plate is 8 ten thousand times improved in the service life of the cooling plate which is 10 ten thousand times of plate bodies and is not subjected to water leakage comparison although cracks appear, the novel 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 exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects 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. Furthermore, 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 expressly 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 … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (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 should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A die casting method for preventing die explosion comprises the following steps: after the die casting machine is assembled in place, transmitting a signal to the soup feeder, pouring the soup from the soup feeder, delaying the injection rod to wait for the molten aluminum in a soup ladle of the soup feeder to be completely poured out, starting injection, and opening a die after the electromagnetic valve receives the injection signal to obtain electricity to open the electromagnetic valve to supply water for cooling along with the electromagnetic valve on the water seat, wherein the cooling plate starts to cool and the electromagnetic valve can be opened after cooling is finished; the method is characterized in that: the specific steps of cooling are as follows:
the profiling cooling plate is arranged in front of the pouring sleeve of the die casting die and is inlaid on the die core of the fixed die, the relay on the cooling water valve is controlled by the injection signal, 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 when the profiling cooling plate is injected, the water supply time is 35-40 seconds, and the temperature of the profiling cooling plate is reduced to 520 ℃.
2. The die casting method for preventing die explosion according to claim 1, wherein: the profiling cooling plate adopts a built-in profiling stainless steel pipe waterway to separate a water channel from the plate body.
3. A die casting method for preventing die explosion according to claim 2, wherein: the waterway distance between the built-in profiling stainless steel pipe and the plate surface is 10mm.
4. A die casting method for preventing die explosion according to claim 2, wherein: the processing technology of the profiling cooling plate is as follows: according to actual hammer head size and runner molding the plate body of processing profile modeling cooling plate in advance, the plate body material uses H13 model material, the back of plate body is according to the U type groove of concrete molding open 11mm width, U type groove is used for installing built-in profile modeling stainless steel pipe water route, the body is apart from the face 10mm, the water pipe diameter 10mm, wall thickness 1mm places 5 iron poles spacing on the body, iron pole diameter 10mm, the material in built-in profile modeling stainless steel pipe water route uses H13 model material, seal with the aluminium liquid casting at last, 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115026258A CN115026258A (en) | 2022-09-09 |
| CN115026258B true CN115026258B (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210800383.5A Active CN115026258B (en) | 2022-07-08 | 2022-07-08 | Die casting method for preventing die explosion |
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| CN115026258A (en) | 2022-09-09 |
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