KR102097115B1 - Aluminum alloy manufacturing method - Google Patents

Abstract

The present invention relates to a method for manufacturing aluminum alloy, and more specifically, to the method for manufacturing aluminum alloy with improved productivity. The present invention includes: a melting step of manufacturing aluminum alloy by melting aluminum and additives; a molding step of injecting the aluminum alloy into a plurality of molds provided on a conveyor; a cooling step of cooling the aluminum alloy; and a discharging step of discharging the aluminum alloy.

Description

Aluminum alloy manufacturing method {ALUMINUM ALLOY MANUFACTURING METHOD}

The present invention relates to a method for manufacturing an aluminum alloy, and more particularly, to a method for manufacturing an aluminum alloy with improved productivity.

Aluminum has a light specific gravity of 2.7, good stretchability, and excellent corrosion resistance. It is also a very useful metal because it can be combined with various elements to create multiple alloys.

Aluminum alloy (aluminum alloy) is a light and high-strength alloy is widely used in aircraft parts, engine parts such as pistons, LNG tanks, automobile bodies, and the like. In recent years, high-strength aluminum alloys, heat-resistant aluminum alloys, and the like have been remarkably developed. The demand for these aluminum alloys is expected to increase mainly in the aircraft sector.

These aluminum alloys are generally produced by adding silicon, magnesium, courier, nickel, lithium, cadmium and the like to aluminum molten metal depending on the application.

The prior art registration patent No. 10-1281550 (hereinafter referred to as the prior art) relates to an eco-friendly manufacturing method of a zinc-aluminum-magnesium alloy plating ingot utilizing magnesium alloy scrap, and more specifically, 0.2 to 10% by weight of aluminum. , 0.5 to 10% by weight of magnesium, in the zinc-aluminum-magnesium alloy plating ingot production method for zinc-aluminum-magnesium alloy plating layer composed of the remaining zinc and impurities inevitably present, zinc-aluminum melting Preparing a metal; Adjusting the temperature of the zinc-aluminum molten metal to a minimum of 1 ° C. or higher and a maximum of 60 ° C. or higher than a melting point determined by the composition ratio of the zinc-aluminum molten metal; Placing the magnesium alloy in a mold mold in an amount calculated from the magnesium concentration of the zinc-aluminum-magnesium ingot to be produced; Injecting zinc-aluminum molten metal into the mold and then cooling it; Removing the zinc-aluminum-magnesium ingot from the mold; It is possible to easily manufacture ingots required for forming a zinc-aluminum-magnesium alloy hot-dip layer without using an inert gas, including, thereby reducing manufacturing costs and reducing global warming emissions.

However, this prior art has a problem in that productivity is lowered because the molten aluminum alloy has to be injected into a plurality of molds (molds) by transporting it to a ladle or the like.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an aluminum alloy manufacturing method with improved productivity by efficiently injecting molten aluminum alloy into a plurality of molds.

In addition, an object of the present invention is to provide an aluminum alloy manufacturing method that is easy to demold and transport.

The present invention for the purpose of solving the above problems has the following configuration and features.

A melting step of manufacturing aluminum alloy by melting aluminum and additives, a molding step of injecting the aluminum alloy into a plurality of molds provided on a conveyor, a cooling step of cooling the aluminum alloy, and a discharge step of discharging the aluminum alloy Includes.

In addition, the forming step includes a transfer step of transferring the aluminum alloy discharged from the heating furnace to the distribution and a distribution step of discharging the aluminum alloy to the mold, wherein the transfer step is formed on one side of the lower side of the heating furnace. It is performed through a transfer path connected to an outlet, and the dispensing step is performed by a distribution path connected to the other side of the transfer path and disposed above the mold to drop and insert the aluminum alloy into the mold. The furnace includes an accommodating part having one side connected to the outlet and a connecting part having one side connected to the accommodating part and the other side connected to the outlet, but a bottom having a connection higher than that of the accommodating part, and the cooling steps are respectively performed on the aluminum alloy. The first, intermediate and final cooling includes a first cooling step to a third cooling step, and the mold is detachable from the conveyor. Neunghage can be combined.

In addition, the discharging step is a demolding step in which the aluminum alloy disposed in the mold is moved to a conveyer provided at a lower side than the conveyor, while the upper open portion of the mold is disposed downward, and the loader grips the aluminum alloy. A gripping step for separating on a transporter, a loading step in which the stacker places the aluminum alloy on a stacking plate, wherein the stacking plate protrudes upward and is adjacent to each other by a plurality of seating protrusions spaced apart from each other and protrusion of the seating protrusions. It includes a fork groove formed between two seating projections, the seating projections have a predetermined length along one side of the loading plate, the aluminum alloy is the upper surface of the seating projections in a direction perpendicular to the longitudinal direction of the seating projections Seated on, the loading plate is further rotated means for rotating the loading plate to the lower It can hamhal.

The present invention having the above configuration and features includes a molding step of injecting molten aluminum alloy into a plurality of molds provided on a conveyor, thereby effectively injecting molten aluminum alloy into a plurality of molds to improve productivity. Have

In addition, the present invention has an effect that economic efficiency and productivity are improved by including a transfer step performed through a transfer path connected to an outlet formed at a lower side of the heating furnace.

In addition, the present invention is detachably coupled to the conveyor, and includes a discharging step in which the upper part of the opening in the formwork is disposed downward in the discharging step, thereby having the effect of easy demoulding.

In addition, the present invention has an effect that the handling of the aluminum alloy is easy because the loading plate on which the aluminum alloy is loaded in the discharge step includes a fork groove and a rotating means.

1 is a schematic flowchart of an aluminum alloy manufacturing method according to an embodiment of the present invention.
2 is a view for explaining the heating furnace.
3 is a view for explaining a transport path.
4 is a view for explaining a mold provided on a conveyor and a discharge path.
5 is a view for explaining a cooler through which a conveyor combined with a mold passes.
6 is a view for explaining a cooler through which a mold provided on a conveyor passes.
7 is a view for explaining that the portion of the mold opening by the transporter and the conveyor is directed downward.
8 is a view for explaining a stacker and a stacking plate.
9 is a view showing a further embodiment of the present invention.

The present invention can be applied to a variety of changes and can have a variety of forms, the implementation (態 樣, aspect) (or embodiments) will be described in detail in the text. However, it is not intended to limit the present invention to a specific disclosure form, it should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

The terminology used herein is only used to describe a specific embodiment (sun, 態 樣, aspect) (or embodiment), and is not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as ~ include ~ or ~ consist of ~ are intended to designate the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, actions, components, parts or combinations thereof are not excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

~ 1 ~, ~ 2 ~, etc. described in this specification will be referred to only to distinguish that they are different components, and are not limited to the order in which they are manufactured, and the names in the detailed description and claims of the invention It may not match.

Throughout the present specification, when a part is "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with another object in between. do. Also, “connecting” includes cases in which fluid or the like is connected to move.

Throughout the present specification, terms related to direction or position, the upper side, the upper side, the lower side, and the lower side are described based on the arrangement state of each component shown in the drawings. Specifically, the upper side (upper side) may mean the upper side (upper side) based on FIG. 2, and the lower side (lower side) may refer to the lower side (lower side) based on FIG. 2.

1 is a schematic flowchart of an aluminum alloy manufacturing method according to an embodiment of the present invention, and FIG. 2 is a view for explaining a heating furnace.

Hereinafter, a method of manufacturing an aluminum alloy according to an embodiment of the present invention will be referred to as a 'this method' for convenience of description.

1 and 2, the method includes a melting step (S1), a molding step (S2), a cooling step (S3) and a discharge step (S4).

The melting step (S1) is a step of manufacturing aluminum alloy by melting aluminum and additives. Melting step (S1) may be performed in the heating furnace (1).

The additive may be one or two or more of copper, nickel, magnesium, and cadmium, depending on the application.

The aluminum alloy melted by the heating furnace 1 may have a melting temperature set according to the type and amount of additives to be added.

3 is a view for explaining a transport path, and FIG. 4 is a view for explaining a mold provided on a conveyor and a discharge path.

1 to 4, the molding step (S2) is a step of injecting an aluminum alloy (melted aluminum alloy after the melting step (S1)) into a plurality of molds (2) provided on the conveyor (CB). . Although not shown, by coating the mold 2 prior to the forming step S2, the aluminum alloy (intermediate) can be easily demolded from the mold 2 in the discharge step S4 described later.

The molten aluminum alloy of the heating furnace 1 may be transported by a ladle or the like to inject the molten aluminum alloy into the mold 2 by tilting the ladle from the upper side of the mold 2, which will be described in more detail in the description below. , Aluminum side is provided on the other side of the transfer path 12 and the transfer path 12 is formed on the lower side of the heating furnace (1) and disposed on the upper side than the mold (2) aluminum alloy melted into the mold (2) The aluminum alloy (melted aluminum alloy) accommodated in the heating furnace 1 may be injected into the mold 2 by the distribution furnace 11 for dropping.

Conveyor (CB) may be of a variety of ways, such as roller conveyors, belt conveyors.

The mold 2 can be detachably coupled to the conveyor CB by bolting or the like. The mold 2 can move in the direction of the cooler 3 described later in the distribution furnace 11 described later according to the driving of the conveyor CB.

As described above, the method includes a molding step (S2) of injecting aluminum alloy into a plurality of molds 2 provided on a conveyor CB, so as to inject molten aluminum alloy into a plurality of molds 2 Without the need to transport the molten aluminum alloy to each of the plurality of molds 2, since the plurality of molds 2 move, the molten aluminum alloy can be efficiently injected into the plurality of molds 2, thereby improving productivity. There is an advantage.

1 to 4, the forming step (S2) may include a transfer step (S21) for transferring the aluminum alloy discharged from the heating furnace (1) to the distribution furnace (11). The transfer step (S21) may be performed through a transfer path 12, one side of which is connected to an outlet (not shown) formed at the lower side of the heating furnace 1.

In addition, the forming step (S2) may include a dispensing step (S22) for discharging the molten aluminum alloy to the mold (2). The dispensing step (S22) may be performed by a dispensing furnace (11) that is connected to the other side of the transfer path (12) and is disposed above the mold (2) to drop the aluminum alloy melted into the mold (2). .

The heating furnace 1 may include an opening and closing part (not shown) for selectively opening and closing the outlet (not shown). Since the opening / closing part (not shown) is obvious to a person skilled in the art, a more detailed description will be omitted.

In this way, the forming step (S2) in the present method includes a transfer step (S21) performed by the transfer path 12 and a distribution step (S22) performed by the discharge path 11, thereby heating the furnace 1 Without the process of tilting or carrying the molten aluminum alloy accommodated in the heating furnace 1 with a ladle or the like above the mold 2 and tilting the ladle, the molten aluminum of the heating furnace 1 is not required. Since the alloy can be injected into the mold 2, it has the advantage of simplifying the working process and improving manufacturing ease and economy.

Referring to Figure 3, the transfer path 12 has one side connected to the outlet 121 (not shown) connected to the receiving portion 121 and one side is connected to the receiving portion 121, the other side is the discharge path 11 and It may be connected to the bottom of the receiving portion 121 may include a connecting portion 122 higher than the bottom.

That is, when the height of the molten aluminum alloy accommodated in the receiving portion 121 is higher than the height of the connecting portion 122 connected to the other side of the receiving portion 121, it is moved to the discharge path 11 through the connecting portion 122. It is possible. Through this, when a small amount of molten aluminum alloy is unintentionally discharged through an outlet (not shown), the molten aluminum alloy is accommodated by the accommodating part 121 and is suppressed from being injected into the mold 2, so that the mold 2 ) And the connection part 122 is easy to maintain.

5 is a view for explaining a cooler through which a conveyor associated with the mold is passed, and FIG. 6 is a view for explaining a cooler through which the mold provided on the conveyor passes.

1, 5 and 6, the cooling step (S3) is a step of cooling the aluminum alloy. More specifically, the conveyor CB to which the mold 2 is detachably coupled may pass through the cooler 3 and the aluminum alloy injected into the mold 2 may be cooled by the cooler 3.

For example, the cooler 3 may include an injection unit (not shown) for spraying water to the aluminum alloy injected into the mold 2.

The cooling step (S3) may include a first cooling step (S31), a second cooling step (S32), and a third cooling step (S33) for first, intermediate, and final cooling of the aluminum alloy. The first cooling step (S31) is performed by the first injection unit (not shown), the second cooling step (S32) is performed by the second injection unit (not shown), and the third cooling step (S33) is It may be performed by a third injection unit (not shown). That is, the cooler 3 may include a first injection unit (not shown), a second injection unit (not shown), and a third injection unit (not shown).

7 is a view for explaining that the portion of the mold opening by the transporter and the conveyor is directed downward, and FIG. 8 is a view for explaining the stacker and the loading plate.

1, 7 and 8, the discharge step (S4) is a step of discharging the aluminum alloy. The aluminum alloy in the discharge step (S4) may be an intermediate material after the cooling step (S3).

In more detail, the discharge step (S4) is an aluminum alloy (intermediate) disposed in the mold 2 while the upper open part is disposed downward in the mold 2, the carrier provided at the bottom of the conveyor CB ( It may include a demolding step (S41) is moved to 41).

For example, the conveyor CB is a motor (not shown) that is connected to at least one of a pair of rotating parts CB1 and a pair of rotating parts CB1 rotating about parallel horizontal axes, respectively. A pair of rotating parts CB1 connected to the rotating parts CB1 may include a belt part CB2 rotating both axes. The pair of rotating parts CB1 rotate in the same direction, and the belt parts CB2 may be various things such as rollers or belts.

In this way, when the belt CB2 rotates the pair of rotating parts CB1 on both axes, when the mating surface 2 on the belt part CB2 is coupled to the lower side, the mold 2 is also opened at the upper side. The portion is turned downward, and the aluminum alloy disposed on the mold 2 may fall and be demolded from the mold 2. As mentioned above, the mold 2 can be painted to make demoulding easier.

In this way, in the conveyor CB to which the mold 2 is coupled, the belt part CB2 rotates with a pair of rotating parts CB1 as both axes, so that the aluminum alloy can be more easily demolded in a plurality of molds 2. It has the advantage of being able to.

In addition, as described above, the transporter 41 is provided below the conveyor (CB), the aluminum alloy (intermediate) separated from the mold 2 is loaded on the transporter 41, in the direction of the stacker 42 described later Aluminum alloy (intermediate material) can be carried. The transporter 41 may be, for example, a conveyor belt.

1, 7 and 8, the discharge step (S4) may include a gripping step (S42) in which the stacker 42 grips the aluminum alloy and separates it on the transporter 41.

Illustratively, the stacker 42 may include a pair of plates 421 that are bent or curved inward and face each other. In addition, the stacker 42 may include a spacer adjusting unit 422 that adjusts a separation distance of a pair of opposing plates 421, and a lifting unit 423 that lifts and lowers a pair of plates 421, one It may include a horizontal moving unit (not shown) for moving the pair of plates 421 in the horizontal direction.

Here, one of the pair of plates 421 facing each other may be in a direction toward the other. The lifting unit 423 may be, for example, lifting by a hydraulic cylinder. In addition, the separation portion 422 is illustratively a hydraulic cylinder (4221) and one end is coupled to the inner wall of any one of the pair of plates (421), the other end is a separation bar (4222) coupled to the hydraulic cylinder (4221) It may include. Exemplarily, the plate 421 has a bridge shaft (not shown) connecting the pair of protrusions (not shown) projecting inward at both points at the same height on the inner wall and the ends of the pair of protrusions (not shown). It may include, one end of the separation bar 4422 may be a through hole through which the bridge shaft (not shown) is formed.

That is, as long as the height of the other end of the separation bar 4222 coupled with the hydraulic cylinder 4221 by the hydraulic cylinder 4221 approaches the height and one end of the separation bar 4222 coupled with the inner wall of the plate 421, one The separation distance of the pair of plates 421 becomes large (hereinafter, the sound release state), and on the contrary, the height of the other end of the separation bar 4222 coupled with the hydraulic cylinder 4221 by the hydraulic cylinder 4221 and the inner wall of the plate 421 When the distance between the one end and the height of the separation bar 4222 combined with the distance increases, the separation distance of the pair of plates 421 becomes small, and the aluminum alloy (intermediate material) is gripped by the curved or bent portion at the bottom (hereinafter collected). State).

1, 7 and 8, the discharge step (S4) may include a loading step (S43) in which the stacker 42 places an aluminum alloy (intermediate material) on the loading plate 43.

As described above, by way of example, the pair of plates 421 of the stacker 42 is placed in an uncollected state after being horizontally moved by a horizontal moving part (not shown) after gripping the aluminum alloy on the carrier 41 Can be loaded on the loading plate 43.

At this time, the stacking plate 43 may include a fork groove 432 formed between two adjacent seating projections 431 by protrusions of the plurality of seating projections 431 and the seating projections 431 spaced apart from each other. have.

In addition, the seating projection 431 has a predetermined length along one side of the mounting plate 43, and in the discharge step (S4), the aluminum alloy is vertically aligned with the length of the seating projection 431 by the stacker 42. It may be seated on the upper surface of the seating projection (431).

At this time, the loading plate 43 may include rotating means 433 for rotating the loading plate 43 at the bottom. The rotating means 433 is a seat (4331) to which the loading plate 43 is seated and fixed, has a length in the vertical direction and passes through the center of the seat (4331) (not shown), the shaft (not shown) It may include a driving unit (not shown) to rotate.

In this way, the method moves the aluminum alloy (intermediate) in the discharge step (S4) in the direction of the stacker 42 through the transporter 41, and the stacker 42 grips the aluminum alloy and loads it on the stacker plate 43 However, the stacking plate 43 forms a fork groove 432, and the stacking plate 43 is rotated by the rotating means 433, so that there is an advantage in that it is easy to handle and transport the aluminum alloy by a forklift truck or the like.

9 is a view showing a further embodiment of the present invention.

1, 5 and 6, 9, as described above, the cooler 3 performing the cooling step (S3) was said to include an injection unit (not shown) for spraying water. At this time, the water sprayed by the injection part (not shown) can be exposed to water by exposing the aluminum alloy injected into the mold 2, the mold 2, a conveyor (CB), etc. and mechanical equipment placed at the work site. In order to suppress the outflow of water sprayed through the sand (not shown) may include a housing (H) for receiving the spray (not shown).

At this time, the above-described conveyor (CB) passes through the housing (H). That is, the mold (2) provided on the conveyor (CB) passes through the housing (H) of the cooler (3), it is to suppress the sprayed water from flowing out of the housing (H). In particular, since water corrodes machines and the like in the workshop, the configuration of the housing H can be said to be an essential component of the cooler 3.

However, it has been said that the cooler 3 may include an injection part (not shown) accommodated inside the housing H, and the injection part (not shown) may include a pipe, a pump, and a nozzle connected to a water tank. . In addition, the cooler 3 may include a recovery pipe connected to the pump or the like to recycle water introduced through a drain (not shown) and a drain (not shown) under the housing H to drain the sprayed water. You can.

Among the components of the cooler 3, a nozzle or the like needs to be installed on the upper side of the housing H, and the above-mentioned pipes, pumps, nozzles, and recovery pipes, etc. There is a need to open the upper side of the housing (H) for transport.

As a means for solving the above problem, the cooler 3 includes a housing H, but the housing H includes a main body H1 and a main body (H1) having an opening H11 and an internal space H12 on one side. It may include a cover (H2) coupled to H1) to cover the opening (H11).

The housing (H) maintains the shape even if an unexpected accident occurs during the arrangement and maintenance of mechanical equipment, etc., in the workplace where the method is performed, or protects an injection unit (not shown) accommodated inside. In order to be made of a metal material.

At this time, in the cooler 3, water, water vapor, etc. to be sprayed leaks between the gap between the main body H1 and the cover H2, and the thickness surface of the main body H1 and the cover H2 (thick surface where no waterproof layer is formed) is corroded. It may include a sealing coupling means (C) for coupling and sealing the main body (H1) and the cover (H2) to suppress the.

More specifically with reference to Figure 9, the sealing coupling means (C), the binding groove (C1) formed along the circumference of the main body (H1), the extension groove (C2) formed on the wall surface of the binding groove (C1), extension The entrance hole (C3) formed on the wall (H2) side of the groove (C2), provided along the circumference of the cover (H2) and inserted into the binding groove (C1), the binding projection (C4), the circumference of the cover (H2) It is provided along and is accommodated in the sealing member (C6) and the exit hole (C3) provided on the outer surface of the locking groove (C5), the binding protrusion (C4) formed in the position corresponding to the entrance hole (C3), forward and backward, and sheared in advance It includes a locking pin (C7) inserted into this locking groove (C5),

 The sealing member C6 includes a heating portion C61 that generates heat by an impact of a threshold or higher, and an expansion portion C62 provided outside the heating portion C61 to expand by heat.

In this way, by having the opening H11 of the housing H, accessibility to the internal space H12 is improved, so that work on the internal configuration, such as assembly, wiring, replacement, soldering, and the like, is easy. In addition, it is possible to fundamentally prevent the deterioration of the sealing performance due to taking the powder bonding form in order to equip the opening H11 by the sealing coupling means C without additional equipment, additional tools, and skilled techniques. It is possible to improve the bonding force and the holding force between the H1) and the cover H2.

(In the following description, for convenience of explanation, the upper, lower, left, and right sides will be described based on FIG. 9. The specification of these directions should not be interpreted as elements limiting the scope of the present invention. .)

Referring to FIG. 9, in more detail, first, the binding groove C1 is a groove formed along the circumference of the main body H1 on the end side of the main body H1, and the overall shape of the binding groove C1 is the main body. It follows the shape of (H1). The binding groove (C1) is formed by being recessed downward along the circumference of the body (H1) from the top.

And the extended groove (C2) is a groove formed on the wall surface (side wall of the drawing reference) of the binding groove (C1), also the overall shape (H1) of the extended groove (C2) follows the shape of the body (H1). The binding groove C1 and the extension groove C2 have a continuous groove structure along the circumference of the main body H1.

And the entrance hole (C3) is formed from the wall surface of the extension groove (C2) to the cover (H2) side. For example, the access hole C3 may be a through hole penetrating the upper wall surface adjacent to the cover H2 and the upper end of the main body H1 in the extension groove C2.

And the binding projection (C4) is provided to protrude downward from the bottom along the circumference of the cover (H2) is inserted into the binding groove (C1) when the coupling between the main body (H1) and the cover (H2).

And the locking groove (C5) is a groove recessed upward from the bottom of the cover (H2), similarly formed at a position corresponding to the exit hole (C3) along the perimeter of the cover (H2).

And the sealing member (C6) is provided on the outer surface of the binding projection (C5). The sealing member C6 includes a heat generating part C61 that generates heat by an impact of a threshold or higher, and an expansion part C62 provided outside the heat generating part C61 to expand by heat generation. In more detail, the heating unit C61 includes 50 parts by weight of water compared to 80 parts by weight of sodium acetate, and is accommodated in the heat conductor C63. The heating part C61 may be provided by dissolving sodium acetate in water in a supersaturated state.

The heat generating unit C61 is heated by the impact of a threshold or higher while being pressed by the lower wall of the cover H2 and the binding groove C1 during the coupling process between the cover H2 and the main body H1, and the heat generation temperature It is about 50 ~ 90 ℃.

The expanded part (C62) is characterized in that it further comprises 1 part by weight of polyol di (meth) acrylate and 13 parts by weight of hydrofluoric ether, relative to 100 parts by weight of cellulose ester.

In the above, cellulose ester is used as a thermoplastic polymer constituting the polymerizable monomer, and the glass transition temperature is 30 to 120 ° C., but the glass transition temperature is lowered to 55 ° C. by a crosslinking agent described later. The other composition of the expanded portion (C62) is based on 100 parts by weight of this cellulose ester.

Polyol di (meth) acrylate is added as a crosslinking agent, and the molecular weight between the crosslinking points is large, thereby increasing the viscosity of the expanded portion (C62) without deteriorating the foaming properties of the hydrofluoric ether without excessively increasing the crosslinking density of the polymer resin. In addition, the glass transition temperature of the expansion portion (C62) is lowered to enable foaming at a low temperature. If the polyol di (meth) acrylate is too small, the thickening effect is insignificant and can be easily torn during foaming. If excessive, the crosslinking density is too high to lower the foaming magnification. As a result of repeated experiments, the content showing optimal foaming properties was 4 parts by weight.

Hydrofluoric ether is added as a blowing agent, and the content is preferably 13 parts by weight. When the expansion portion (C62) is heated by the heating portion (C61), the thermoplastic polymer softens, and at the same time, the internal pressure of the blowing agent rises to expand the volume.

And the locking pin (C7) is accommodated in the access hole (C3) to move forward and backward (up and down based on the drawing), the front end is inserted into the locking groove (C5). The description of the specific matters in which the locking pin C7 is accommodated in the entrance hole C3 is omitted, and it is assumed that normal knowledge is followed.

The above-described sealing engagement means (C) largely provides two effects, one of which completely closes the gap occurring in the coupling portion between the main body (H1) and the cover (H2), and the other is the main body (H1) ) And improves the binding force between the cover (H2), the holding force and the shaking of the cover.

In summary, the operation and effects of the hermetic coupling means (C) with reference to FIG. 9, in the state of FIG. 9 [A], the heat generating part (C61) is an impact applied upon coupling between the main body (H1) and the cover (H2). As the heat is generated by the expansion, the expansion portion C62 is expanded, and thus the gap between the main body H1 and the cover H2 is filled as shown in FIG. 9 [B] to completely seal the gap. And in this process, the expansion portion (C62) is expanded to be filled in the extended groove (C2), so that the locking pin (C7) is advanced so that the locking pin (C7) is inserted into the locking groove (C5), the main body (H1) And a lock structure between the cover H2 and the cover H2.

The present invention described above with reference to the accompanying drawings can be variously modified and changed by a person skilled in the art, and such modifications and variations should be interpreted as being included in the scope of the present invention.

Furnace: 1 Distribution furnace: 11
Transport path: 12 Receptacle: 121
Connection: 122 Form: 2
Cooler: 3 Carrier: 41
Stacker: 42 Stacker: 43
Seating projection: 431 Fork groove: 432
Rotary means: 433 Conveyor: CB

Claims (4)

A melting step of manufacturing aluminum alloy by melting aluminum and additives;
A molding step of injecting the aluminum alloy into a plurality of molds provided on a conveyor;
A cooling step of cooling the aluminum alloy; And
A discharging step of discharging the aluminum alloy;
Including,
The cooling step is performed by a cooler,
The cooler includes a housing having an opening and an internal space on one side, a cover coupled to the main body to cover the opening, and a housing including a sealing coupling means for coupling and sealing the main body and the cover,
The sealing coupling means, a binding groove formed along the circumference of the main body, an extension groove formed on the wall surface of the binding groove, an entrance hole formed toward the cover side from the wall surface of the extension groove, provided along the circumference of the cover and the binding groove The binding protrusion inserted into the cover, the locking groove formed along the periphery of the cover and formed at a position corresponding to the entrance hole, the sealing member provided on the outer surface of the binding protrusion, and accommodated in the entrance hole to move back and forth and shear at the time of advancement It includes a locking pin inserted into the locking groove,
The sealing member includes a heat generating part that generates heat by an impact of a threshold value or more, and an expansion part that is provided outside the heat generating part to expand by heat generation,
The heating portion comprises 50 parts by weight of water compared to 80 parts by weight of sodium acetate,
Wherein the expanded portion is 100 parts by weight of cellulose ester, polyol di (meth) acrylate 1 parts by weight of hydrofluoric ether and 13 parts by weight of aluminum alloy manufacturing method characterized in that it further comprises.
The method according to claim 1,
The forming step includes a transfer step of transferring the aluminum alloy discharged from the heating furnace to the distribution path and a distribution step of discharging the aluminum alloy into the mold,
The transfer step is carried out through a transfer path, one side of which is connected to the outlet formed on the lower side of the heating furnace,
The dispensing step is performed by a dispensing furnace that is connected to the other side of the transfer path and is disposed above the mold to drop the aluminum alloy into the mold.
The transporting path includes a receiving portion connected to the outlet and a connecting portion connected to the receiving portion, and the other side connected to the outlet, but having a bottom higher than the receiving portion,
Each of the cooling steps includes a primary cooling step to a tertiary cooling step of first, intermediate, and final cooling of the aluminum alloy,
The mold is aluminum alloy manufacturing method characterized in that it is detachably coupled to the conveyor.
The method according to claim 1,
The discharging step is a demolding step in which the aluminum alloy disposed in the mold is moved to a conveyer provided at a lower side of the conveyor while the upper open portion of the mold is disposed downward, and the loader grips the aluminum alloy to move the conveyer. Gripping step for separating the phase, and the loading step of the stacker placing the aluminum alloy on the loading plate,
The loading plate includes a plurality of seating protrusions projecting upward and spaced apart from each other, and a fork groove formed between two adjacent seating protrusions by the protrusion of the seating protrusions,
The seating projection has a predetermined length along one side of the loading plate, the aluminum alloy is seated on the upper surface of the seating projection in a direction perpendicular to the longitudinal direction of the seating projection,
The loading plate further comprises a rotating means for rotating the loading plate at the bottom, characterized in that the aluminum alloy manufacturing method.
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