KR102464566B1 - Reactor manufacturing method improvement system - Google Patents

Abstract

An object of the present invention is to provide a reactor manufacturing method improvement system which comprises: a wax pattern injection unit which forms a wax tree (112) by injecting wax for manufacturing a reactor (10); a shell building unit in which shell casting sand for forming a shell (122) is injected so as to surround an outer surface of the wax tree (112) formed by a wax pattern injection device; a dewaxing unit which heats, melts, and removes the wax tree (112) inside the shell (122) formed by the shell building unit; an injection unit which injects liquid metal (LM, 135) into the inner space of the shell (122) from which the wax tree (112) is removed by the dewaxing unit; a shell knock-off unit which removes the shell (122) from an outer surface of a reactor tree (145) formed by hardening the liquid metal (LM, 135) injected into the shell (122) by the injection unit; and a cut-off unit which separates the reactor (10) from the reactor tree (145) to form an individual reactor (10). Accordingly, material cost and processing time can be drastically reduced.

Description

Reactor manufacturing method improvement system

The present invention relates to a system for improving a method for manufacturing a reactor, and more particularly, to a system for improving a method for manufacturing a reactor capable of reducing raw material and processing time by manufacturing a reactor using a precision casting method (lost wax method) will be.

Reactors are used in various fields, and among them, the Reactor is used as a major key component in the device (Emission Blade) that converts carbon dioxide and methane into hydrogen and carbon monoxide (syngas).

In the past, there is a problem in that raw materials are directly processed by CNC, which takes a lot of raw materials and increases processing time a lot. If a reactor is manufactured by directly processing raw materials with CNC, raw materials are inevitably wasted, and a lot of work time is inevitably required due to the delay in CNC machining time.

On the other hand, the Reactor is made of Hastelloy X, and the handling and machinability of the material is quite difficult, so it has to be machined several times with a minimum amount of machining.

Korean Patent Publication No. 10-1997-0705157 (published on September 06, 1997) Korean Patent Publication No. 10-2000-0070419 (published on November 25, 2000)

An object of the present invention is to manufacture a reactor using the precision casting method (lost wax method) to solve the problem that the raw material is directly processed by CNC, and the raw material is consumed and the processing time is increased. This is to provide a system for improving the reactor manufacturing method that can reduce the cost and processing time.

According to the present invention, a wax pattern injection unit for forming a wax tree 112 by injecting wax for manufacturing the reactor 10; a shell building unit in which a shell casting sand for forming a shell 122 is injected so as to surround the outer surface of the wax tree 112 molded by the wax pattern injection device; a dewax unit for removing the wax tree 112 by heating and melting the inside of the shell 122 molded by the shell building unit; an injection unit for injecting a liquid metal (LM) 135 into the inner space of the shell 122 from which the wax tree 112 is removed by the dewax unit; a shell knock-off unit for removing the shell 122 from the outer surface of the reactor tree 145 formed by curing the liquid metal (LM) 135 injected into the shell 122 by the injection unit; A reactor manufacturing method improvement system is provided, including a cut-off unit that separates the reactor 10 from the reactor tree 145 to form an individual reactor 10 .

The wax pattern injection unit includes: a wax injection box 110 having a wax tree forming chamber (WTC) for forming a wax tree 112; and a wax injection device for injecting liquid wax into the wax tree forming chamber (WTC) inside the wax injection box 110 .

The wax injection box includes a first divided injection box body 1112 having a first half-half chamber forming groove 1114 penetrating into the inside, and a second half-half chamber forming groove ( A second divided injection box body 1122 having 1124), a first half-cut injection hole forming groove 1116 communicating with the first half-half chamber forming groove 1114 from the upper end of the first divided injection box, and the It is characterized in that it includes a second half-cut injection hole forming groove 1126 communicating with the second half-half chamber forming groove 1124 at the upper end of the second divided injection box.

A coolant circulation passage (CWP) is provided inside the first divided injection box body 1112 and the inside of the second divided injection box body 1122 forming the wax injection box, and the coolant circulation passage (CWP) includes a hose and The wax injected into the wax tree chamber inside the wax injection box is connected to the external cooling water supply circulator through the same connecting pipe, and the inside of the first divided injection box body 1112 and the second divided injection box body 1122 When hardening by cooling the high-temperature liquid wax by the coolant circulating inside the

The cylinder rod of the first box forming cylinder 1132 and the cylinder of the second box forming cylinder 1142 are respectively on the outer surface of the first divided injection box body 1112 and the outer surface of the second divided injection box body 1122 . When the rod is connected and the cylinder rod of the first box forming cylinder 1132 and the cylinder rod of the second box forming cylinder 1142 advance, the first divided injection box body 1112 and the second injection box body face each other The inner surfaces are pressed in close contact with each other to form a wax injection box, and the first half-half chamber forming groove 1114 and the second half-half chamber forming groove 1124 meet to form a wax injection box inside the wax injection box. A wax tree forming chamber (WTC) is formed inside, and the first half-half injection hole forming groove 1116 and the second half-half chamber forming groove 1124 meet to form a wax injection hole (WIH) communicating with the wax tree chamber. to form

The shell building unit, the first shell building divided body 1222; a second shell building split body 1224 disposed at a position facing the first shell building split body 1222; and a molding sand injection device for injecting molding sand into the shell building chamber 1220SBC between the first shell building divided body 1222 and the second shell building divided body 1224 .

The first shell building divided body 1222 and the second shell building divided body 1224 are disposed to face each other, and a first half-cut shell building groove 1222HG is formed on the inner surface of the first shell building divided body 1222 . ) is provided, and a second half-cut shell building groove 1224HG is provided on the inner surface of the second shell building divided body 1224 .

A first half-cut molding sand injection groove communicating with the first half-cut shell building groove 1222HG from the upper end of the first shell building divided body 1222, and a second half-cut shell from the upper end of the second shell building divided body 1224 It characterized in that it includes a second half-cut molding sand injection groove (1224SIG) communicating with the building groove (1224HG).

The first shell building divided body 1222 and the second injection box body are advanced in the opposite direction to each other, and the inner surfaces are pressed into close contact with each other to form a shell building mold 1220, and inside the shell building mold 1220, the The first half-cut shell building groove 1222HG and the second half-cut shell building groove 1224HG meet to form a shell building chamber 1220SBC inside the shell building frame 1220, the first half-cut molding sand injection groove, and the second The half-cut shell building grooves 1224HG meet to form a molding sand injection hole communicating with the shell building chamber 1220SBC.

An air circulation passage (AIP) is provided in the inside of the first shell building divided body 1222 and the inside of the second shell building divided body 1224 forming the shell building frame 1220, and the air circulation passage (AIP) is connected to the external cooling air circulation device through a connecting pipe such as a hose, and the molding sand injected into the shell building chamber 1220SBC inside the shell building frame 1220 is mixed with the inside of the first shell building split body 1222 It is characterized in that the molding sand is rapidly bound by the binder by the cooling air circulating inside the second shell building divided body 1224 and hardened.

The dewax unit includes a heating furnace 1232 for accommodating a wax tree shell assembly (WTSA) containing a wax tree 112 inside the shell; A heating device 1234 for applying heat to the inside of the heating furnace 1232 to melt and remove the wax tree contained in the shell at a high temperature, and at the same time heat the shell formed by binding the molding sand to maintain the fixing state of the molding sand. It is characterized in that it contains;

The shell knock-off unit is a shell 122 from the outer surface of the reactor tree 145 formed by curing the liquid metal (LM) 135 injected into the reactor tree forming space (RTC) inside the shell 122 . It is characterized in that it is composed of a vibrating device or a shell peeling device for removal.

The shell peeling device includes a water spray box 1242 accommodating the reactor tree shell assembly therein, and a plurality of water nozzles 1244 installed in the water spray box 1242, and the water nozzle 1244 has a spray hole. (1244EH) is characterized in that it is equipped.

The cut-off unit may include a gripper part for gripping the reactor tree; and a cutter unit that cuts the reactors in the reactor tree to make individual reactors.

The gripper unit may include a pair of grippers 1252 disposed at positions facing each other on the gripper frame; and a pair of grip operation cylinders 1254 each having a cylinder rod connected to the gripper 1252 .

The cutter portion includes a cutter frame 1262 supported on the gripper frame; a cutter 1264 rotating at a high speed by rotation of a motor shaft of a cutter driving motor mounted on the cutter frame 1262; It characterized in that it comprises a cutter driving motor and a cutter moving device (1266) for advancing the cutter (1264) toward the reactor tree in the cutter frame (1262).

The cutter moving device 1266 is composed of a cutter moving cylinder in which the cylinder rod is connected to the cutter driving motor through connecting means such as brackets and bolts.

The present invention manufactures a reactor cast by the precision casting method (lost wax method), and since the product manufactured by the precision casting method is cast within 1 mm based on the product after processing, the material cost and processing time can be drastically reduced, and the tool The number of wear and tear can also be reduced. In addition, it can play an important role in mass-producing the same product and guaranteeing the same quality, which has the effect of realizing significant cost savings.

1 is a real photo of a reactor formed by conventional CNC machining;
2 is a real photograph of a reactor precision-cast by the reactor manufacturing method improvement system of the present invention;
3 is a view schematically showing a process of precision casting a reactor by the reactor manufacturing method improvement system of the present invention;
4 is a side view showing the structure of a wax injection box, which is a main part of the present invention;
5 is a side view showing a state in which the first divided injection box body and the second divided injection box are in close contact to form the wax injection box of FIG. 4;
Figure 6 is a side view of the wax tree molded by the wax injection box of Figure 5;
7 is a side view showing the structure of a first shell building divided body and a second shell building divided body for forming a shell building formwork according to the present invention;
8 is a side view showing a state in which the split body of the first shell building and the split body of the second shell building shown in FIG. 7 are in close contact to form a shell building frame;
9 is a side view schematically showing the process of supplying the molding sand to the inside of the shell building frame shown in FIG. 8 by a hopper and a damper;
10 is a side view of the wax tree shell assembly molded by the shell building mold of FIG. 9;
11 is a side view showing a process of removing wax by putting the wax tree shell assembly of FIG. 10 into a heating furnace;
12 is a side view showing a state in which a reactor tree is formed by injecting and curing liquid metal in a state in which wax is removed from the wax tree shell assembly of FIG. 11;
13 is a side view showing a state in which the molding sand outer frame surrounds the reactor tree formed in FIG. 12;
14 is a side view schematically showing the process of removing the molding sand outer frame surrounding the reactor tree by injecting the reactor tree and the molding sand outer frame of FIG. 13 into the water spray box and spraying water with the water nozzle;
15 is a side view of a reactor tree shaped in accordance with the present invention;
Fig. 16 is a side view schematically showing the state before cutting the reactor with a cutter in the reactor tree of Fig. 15;
17 is a side view schematically showing a process of individualizing a reactor by cutting the reactor with a cutter in the reactor tree of FIG. 15 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The objects, features and advantages of the present invention will be more readily understood by referring to the accompanying drawings and the following detailed description. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component is directly connected to, or may be connected to, the other component, but there is another component between each component. It should be understood that elements may be “connected,” “coupled,” or “connected.”

In addition, specific structural or functional descriptions in the present invention are only exemplified for the purpose of describing embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms and may be implemented in the present specification or application It should not be construed as being limited to the embodiments described in .

2 is a real photograph of a reactor precision cast by the reactor manufacturing method improvement system of the present invention, FIG. 3 is a view schematically showing a process of precision casting a reactor by the reactor manufacturing method improvement system of the present invention, FIG. 4 is this A side view showing the structure of the wax injection box, which is a main part of the invention, FIG. 5 is a side view showing a state in which the first divided injection box body and the second divided injection box are in close contact to form the wax injection box of FIG. 4 , FIG. 6 is FIG. A side view of a wax tree molded by a wax injection box of A side view showing a state in which the split body of the first shell building and the split body of the second shell building shown in 7 are in close contact to form a shell building mold, FIG. 9 is a shell building mold shown in FIG. A side view schematically showing the supply process by A side view showing the process, FIG. 12 is a side view showing a state in which a reactor tree is formed by injecting and hardening liquid metal in a state in which wax is removed from the wax tree shell assembly of FIG. 11, and FIG. 13 is an external shape of the reactor tree formed in FIG. A side view showing a state that the frame is wrapped, FIG. 14 is a schematic view of the process of removing the molding sand outer frame surrounding the reactor tree by injecting the reactor tree and the molding sand outer frame of FIG. 13 into the water spray box and spraying water with the water nozzle Fig. 15 is a side view of a reactor tree molded by the present invention, Fig. 16 is a side view schematically showing the state before cutting the reactor with a cutter in the reactor tree of Fig. 15, Fig. 17 is the reactor tree of Fig. 15 It is a side view schematically showing the process of individualizing the reactor by cutting the reactor with a cutter.

Referring to the drawings, the reactor manufacturing method improvement system according to the present invention comprises: a wax pattern injection unit that forms a wax tree 112 by injecting wax (WAX) for manufacturing the reactor 10; a shell building unit in which a shell casting sand for forming a shell 122 is injected so as to surround the outer surface of the wax tree 112 molded by the wax pattern injection device; a dewax unit for removing the wax tree 112 by heating and melting the inside of the shell 122 molded by the shell building unit; an injection unit for injecting a liquid metal (LM) 135 into the reactor tree forming space (RTC), which is the inner space of the shell 122 from which the wax tree 112 is removed by the dewax unit; a shell knock-off unit for removing the shell 122 from the outer surface of the reactor tree 145 formed by curing the liquid metal (LM) 135 injected into the shell 122 by the injection unit; and a cut-off unit that separates the reactor (10) from the reactor tree (145) to form an individual reactor (10).

The wax pattern injection unit includes a wax injection box 110 having a wax tree molding chamber (WTC) for forming the wax tree 112 therein, and a wax tree molding chamber (WTC) inside the wax injection box 110 . ) includes a wax injection device for injecting liquid wax into the

The wax injection device and the wax tree forming chamber (WTC) inside the wax injection box 110 are configured to communicate with each other through a wax supply connector, and a wax supply tank in which liquid wax is filled on the wax supply connector. is disposed, the wax is injected into the wax tree forming chamber (WTC) inside the wax injection box 110 through the wax supply connection pipe from the wax supply tank at a constant pressure by the operation of the wax injection device to be filled with wax.

The shell building unit includes a shell building booth in which the wax tree 112 molded in the wax tree forming chamber (WTC) inside the wax injection box 110 is accommodated, and the wax tree ( The outer surface of the wax tree 112 is configured to form a shell 122 that is a casting outer frame by supplying and curing the outer surface of the wax tree 112 .

The dewax unit is a unit for removing the wax tree 112 by heating and melting it inside the shell 122 molded by the shell building unit. The dewax unit includes a heating device 1234 for externally heating the shell 122 surrounding the wax tree 112 . When the shell 122 is heated from the outside by the heating device 1234 , heat is transferred from the shell 122 to the wax tree 112 , and the wax tree 112 is melted by the heat, the shell 122 . A wax drain hole is provided in the lower portion of the shell 122 so that wax melting inside the shell 122 can be drained from the wax drain hole on the bottom surface of the shell 122 and removed. In this way, the reactor tree forming space (RTC) for forming the reactor tree 145 inside the shell 122 is secured.

The injection unit injects a high-temperature liquid metal (LM) 135 into the inner space of the shell 122 from which the wax tree 112 is removed by the dewax unit, that is, the reactor tree forming space (RTC). is a device that The injection unit includes an injection furnace 132 for injecting a high-temperature liquid metal (LM) 135 into the inner wax tree forming space of the shell 122, and an injection furnace 132 by rotating the injection furnace 132 in a frame. ) from the supply opening of the upper end to the high-temperature liquid metal (LM) 135 is injected into the reactor tree forming space (RTC) inside the shell 122 includes an injection furnace rotating device.

At this time, the injection furnace 132 is rotatably coupled to the support frame via a hinge, and the injection furnace rotation device has a motor shaft connected to the hinge shaft of the hinge connecting the support frame and the injection furnace. Connecting means such as a connector It may be composed of a rotation drive motor connected as a medium.

When the motor shaft of the rotation driving motor rotates clockwise in a state in which the high-temperature liquid metal (LM) is filled in the injection furnace, the hinge shaft constituting the hinge rotates clockwise while the support frame is used as a reference for the injection furnace. It can be rotated so that the upper opening of the shell is inclined to the reactor tree forming space opened to the upper end of the shell, so that the high-temperature liquid metal (LM) (liquid metal (LM) for forming the reactor tree) is injected in the injection furnace, and rotates When the motor shaft of the drive motor rotates counterclockwise, the hinge shaft constituting the hinge rotates counterclockwise, and the upper opening of the injection furnace with respect to the support frame is opened to the upper end of the shell into the reactor tree forming space. The injection of the high-temperature liquid metal (LM) in the injection furnace is stopped while rotating to stand up again in a tilted state.

The shell knock-off unit is a shell enclosing the outer surface of the reactor tree 145 in a state in which the liquid metal (LM) 135 injected into the shell 122 by the injection unit is hardened to form the reactor tree 145 . (122) is a device to remove. Since the shell 122 is formed by curing the molding sand 141, the shell 122 is removed from the reactor tree 145 by peeling the shell 122 from the reactor tree 145 by a separate vibrating device or peeling device. ) to reveal

The cut-off unit is a device for separating the reactor 10 from the reactor tree 145 to form an individual reactor 10 . The cut-off unit may include a cutting device equipped with a high-speed rotating circular cutter 1264, and the reactor 10 individually in the reactor tree 145 by the high-speed rotating circular cutter 1264 by driving the cutting device. By cutting them, it is possible to make individual reactors 10 . Preferably, the cut surfaces of the cut reactors 10 are polished by a grinder and the surface of the reactor 10 is also polished by the reactor 10 to increase the precision of the reactor 10 .

When describing the process of molding the reactor 10 by the precision casting method according to the present invention having the above configuration, a wax injection process, a wax tree 112 assembly molding process, and a shell 122 building process as an outer frame , a dewax/burnout process for removing wax from the inside of the shell 122, a liquid metal (LM) 135 injection process (Metal pouring), a liquid metal (LM) 135 hardening and a shell removal process (Shell knokc) -off), a process (Cut-off) of cutting the reactor 10 from the reactor tree 145 to form an individual reactor 10 is performed.

The wax pattern injection unit includes: a wax injection box 110 having a wax tree forming chamber (WTC) for forming a wax tree 112; and a wax injection device for injecting liquid wax into the wax tree forming chamber (WTC) inside the wax injection box 110 .

The wax injection box includes a first divided injection box body 1112 having a first half-half chamber forming groove 1114 penetrating into the inside, and a second half-half chamber forming groove ( A second divided injection box body 1122 having 1124), a first half-cut injection hole forming groove 1116 communicating with the first half-half chamber forming groove 1114 from the upper end of the first divided injection box, and the A second half-cut injection hole forming groove 1126 communicating with the second half-half chamber forming groove 1124 from the upper end of the second divided injection box is included.

The cylinder rod of the first box forming cylinder 1132 and the cylinder of the second box forming cylinder 1142 are respectively on the outer surface of the first divided injection box body 1112 and the outer surface of the second divided injection box body 1122 . When the rod is connected and the cylinder rod of the first box forming cylinder 1132 and the cylinder rod of the second box forming cylinder 1142 advance, the first divided injection box body 1112 and the second injection box body face each other The inner surfaces are pressed in close contact with each other to form a wax injection box, and the first half-half chamber forming groove 1114 and the second half-half chamber forming groove 1124 meet to form a wax injection box inside the wax injection box. A wax tree forming chamber (WTC) is formed inside, and the first half-half injection hole forming groove 1116 and the second half-half chamber forming groove 1124 meet to form a wax injection hole (WIH) communicating with the wax tree chamber. to form

In a state in which the wax injection box is formed, wax is injected into the wax tree chamber inside the wax injection box through the wax injection hole WIH. At this time, the wax is a liquid wax having a certain temperature, and the high-temperature liquid wax is injected into the wax tree chamber inside the wax injection box through a wax injector.

At this time, a wax injection device is used. The wax injection device is connected to the wax injection hole (WIH) of the wax injection box via a wax injection tube, and the wax injection tube draws wax with a constant pressure like a compressor to inject the wax into the wax injection hole (WIH). Since the wax injection device is connected, the high-temperature liquid wax passes through the wax injection hole (WIH) of the wax injection box through the wax injection tube by the operation of the wax injection device to the wax tree chamber inside the wax injection box. can be injected. Of course, the wax injection device may be connected to the wax storage tank through a wax supply connection pipe (not shown) to draw high-temperature liquid wax filled in the wax storage tank to be injected into the wax tree chamber inside the wax injection box.

The wax injected into the wax tree chamber inside the wax injection box is cured to form a solid wax tree. At this time, a cooling water circulation passage (CWP) is provided in the inside of the first divided injection box body 1112 and the inside of the second divided injection box body 1122 forming the wax injection box, and a hose is provided in the cooling water circulation passage (CWP). It is connected to the external cooling water supply circulator through a connecting pipe such as, and the wax injected into the wax tree chamber inside the wax injection box is transferred to the inside of the first divided injection box body 1112 and the second divided injection box body 1122. ), the hot liquid wax is cooled and hardened by the cooling water circulating inside.

In this way, the wax injected into the wax tree chamber inside the wax injection box is cooled by cooling water circulating in the inside of the first divided injection box body 1112 and the inside of the second divided injection box body 1122 . In the case of hardening, the curing time of the high-temperature liquid wax injected into the wax tree chamber inside the wax injection box is accelerated, so that the entire reactor manufacturing process time can be shortened, and furthermore, the productivity of the reactor is increased.

Meanwhile, the cylinder rod of the first box forming cylinder 1132 and the cylinder rod of the second box forming cylinder 1142 are reversed after the wax tree in a solid shape cured in the wax tree chamber inside the wax injection box is molded. Then, the first divided injection box body 1112 and the second injection box body move backward in a direction away from each other, and in this state, the solid wax tree can be removed from the wax injection box.

Since the cylinder rod of the first box forming cylinder 1132 and the cylinder rod of the second box forming cylinder 1142 only need to move backward in a state where a solid wax tree is made in the wax tree chamber inside the wax injection box, the wax It has the effect of easily and quickly removing the tree from the wax injection box.

The shell building unit, the first shell building divided body 1222; a second shell building split body 1224 disposed at a position facing the first shell building split body 1222; and a molding sand injection device for injecting the molding sand into the shell building chamber 1220SBC between the first shell building divided body 1222 and the second shell building divided body 1224 .

In the present invention, the first shell building divided body 1222 and the second shell building divided body 1224 are disposed at positions facing each other, and the inner surface of the first shell building divided body 1222 has a first half-cut shell building groove. 1222HG is provided, and a second half-cut shell building groove 1224HG is provided on the inner surface of the second shell building divided body 1224 .

In addition, the present invention provides a first half-cut molding sand injection groove communicating with the first half-cut shell building groove 1222HG from the upper end of the first shell building divided body 1222, and the second shell building divided body 1224 from the upper end of the body 1224. It is characterized in that it includes a second half-cut molding sand injection groove (1224SIG) communicating with the second half-cut shell building groove (1224HG).

The first shell building divided body 1222 and the second injection box body are advanced in the opposite direction to each other, and the inner surfaces are pressed into close contact with each other to form a shell building mold 1220, and inside the shell building mold 1220, the The one-half shell building groove 1222HG and the second half-half shell building groove 1224HG meet to form a shell building chamber 1220SBC inside the shell building frame 1220, the first half-cut molding sand injection groove, and the second half-section The shell building grooves 1224HG meet to form a molding sand injection hole communicating with the shell building chamber 1220SBC.

In a state in which the shell building mold 1220 is formed, the molding sand is injected into the shell building chamber 1220SBC inside the shell building mold 1220 through the molding sand injection hole. At this time, the molding sand is injected into the shell building chamber 1220SBC inside the shell building mold 1220 through the molding sand injector.

At this time, a molding sand injection device is used. A molding sand supply hopper (HOP) is disposed above the shell building frame 1220, and a damper (DP) is installed in a supply sleeve of the molding sand supply hopper (HOP), and when the damper (DP) is opened, the molding sand The molding sand falls from the supply sleeve of the supply hopper (HOP), passes through the molding sand injection hole of the shell building mold 1220, and is filled into the shell building chamber 1220SBC inside the shell building mold 1220.

The molding sand injected into the shell building chamber 1220SBC inside the shell building mold 1220 is hardened to form a shell that is a solid-shaped molding sand outer frame. The molding sand may be fixed by a binder to form a shell in which the molding sand is hardened.

At this time, an air circulation passage (AIP) is provided in the interior of the first shell building divided body 1222 and the second shell building divided body 1224 forming the shell building frame 1220, and the air circulation passage (AIP) ) is connected to the external cooling air circulation device through a connecting pipe such as a hose, and the molding sand injected into the shell building chamber 1220SBC inside the shell building frame 1220 is applied to the inside of the first shell building split body 1222. And the second shell building divided body 1224 by the cooling air circulating inside the molding sand is fastened by the binder so that it hardens.

In this way, the molding sand injected into the shell building chamber 1220SBC inside the shell building frame 1220 is injected into the cooling air that circulates in the inside of the first shell building divided body 1222 and the second shell building divided body 1224. In the case where the molding sand is quickly hardened in a state in which the molding sand is combined with a binder by cooling by and, furthermore, there is an effect of increasing the productivity of the reactor.

On the other hand, after the shell, which is an external frame hardened in the shell building chamber (1220SBC) inside the shell building frame 1220, is molded, the cylinder rod of the first shell building cylinder and the cylinder rod of the second shelving cylinder move backward, The first shell building divided body 1222 and the second shell building divided body 1224 move backward in a direction away from each other, and in this state, the shell, which is a solid external frame, can be removed from the shell building frame 1220. .

In the shell building chamber 1220SBC inside the shell building frame 1220, the cylinder rod of the first shell building cylinder and the cylinder rod of the second shell building cylinder only need to move backward in the state where the shell with the molding sand hardened is made, so the shell building There is an effect that the shell can be removed more easily and quickly from the mold 1220.

The dewax unit includes a heating furnace 1232 for accommodating a wax tree shell assembly (WTSA) containing a wax tree 112 inside the shell; A heating device 1234 for applying heat to the inside of the heating furnace 1232 to melt and remove the wax tree contained in the shell at a high temperature, and at the same time heat the shell formed by binding the molding sand to maintain the fixing state of the molding sand. includes ;

The heating device 1234 may be configured as a heater built into the wall itself of the heating furnace 1232 or a burner disposed inside the heating furnace 1232 . In the present invention, an embodiment in which a burner is disposed inside the heating furnace 1232 is illustrated.

When the wax tree shell assembly (WTSA) injected into the heating furnace 1232 (ie, the wax tree contained inside the shell) is heated to a high temperature by the heating device 1234, the wax tree shell assembly (WTSA) The wax inside the shell is melted by high-temperature heating and removed while falling out from the inside of the shell, leaving a reactor tree molding space (RTC) inside the shell.

The shell knock-off unit is a shell 122 from the outer surface of the reactor tree 145 formed by curing the liquid metal (LM) 135 injected into the reactor tree forming space (RTC) inside the shell 122 . It consists of a vibrating device or a shell peeling device for removal.

The molding sand shell surrounds the outer surface of the reactor tree by being molded in the reactor tree forming space inside the shell, and what the molding sand shell wraps around the reactor tree can be called a reactor tree shell assembly, and the vibrating device is a gripper 1252 It may include a vibration frame for gripping the reactor tree shell assembly by a vibration generator, and a vibration generator for applying vibration to the vibration frame.

Alternatively, the shell peeling device includes a water spray box 1242 accommodating the reactor tree shell assembly therein, and a plurality of water nozzles 1244 installed in the water spray box 1242 .

The water nozzle 1244 is connected to an external water dispenser through a connecting pipe such as a hose, and water supplied at a constant pressure from the water dispenser is supplied through a plurality of water nozzles 1244 outside the shell of the reactor tree shell assembly. As the molding sand, which forms a shell by water while being sprayed onto the surface, is released from the state fixed by the binder, the molding sand flows down from the reactor tree, so that only the reactor tree remains in the reactor tree shell assembly. The water nozzle 1244 is provided with a spray hole 1244EH, and is configured to spray water at a predetermined pressure through the spray hole 1244EH.

In the present invention, an embodiment in which a shell peeling device is employed to remove the shell from the outer surface of the reactor tree is shown, and when the shell is removed by flowing down from the outer surface of the reactor tree by the shell peeling device, the casting sand reactor tree Since it is cleanly removed from the outer surface of the reactor, it can be expected that the reactor tree can be easily trimmed, while further increasing the efficiency in the subsequent reactor separation operation.

The cut-off unit includes: a gripper part gripping the reactor tree; a cutter part making individual reactors by cutting a reactor from the reactor tree.

The gripper unit includes a pair of grippers 1252 disposed at positions facing each other on the gripper frame; a pair of grip operation cylinders 1254 each having a cylinder rod connected to the gripper 1252 .

When the cylinder rods of the pair of grip operation cylinders 1254 advance while the reactor tree is disposed on the gripper frame, the pair of grippers 1252 grip the reactor tree and stably fix it.

The cutter portion includes a cutter frame 1262 supported on the gripper frame; a cutter driving motor mounted on the cutter frame 1262; a cutter 1264 rotating at a high speed by rotation of a motor shaft of the cutter driving motor; The cutter frame 1262 includes a cutter driving motor and a cutter moving device 1266 for advancing the cutter 1264 toward the reactor tree.

The cutter 1264 is connected to the motor shaft of the cutter driving motor via a rotational force transmitting means and rotates at a high speed in the cutter frame 1262 . At this time, the cutter 1264 is composed of a belt-shaped cutter 1264, and the rotational force transmitting means includes a driving pulley coaxially coupled to the motor shaft of the cutter driving motor, and a follower rotatably coupled to the cutter frame 1262 . It includes a pulley, and the belt-shaped cutter 1264 may be configured as a closed-loop belt-shaped cutter 1264 passing through the outer peripheral surfaces of the driving pulley and the driven pulley.

In a state in which the band-shaped cutter 1264 rotates at high speed, the cutter driving motor and the cutter 1264 are moved from the cutter frame 1262 toward the tree by the cutter moving device 1266. to cut out individual reactors. At this time, since the configuration for rotating the belt-shaped cutter 1264 at high speed is a known configuration, a further detailed description thereof will be omitted.

At this time, when the cutter 1264 is composed of the circular cutter 1264, the center of the cutter 1264 is coaxially coupled to the motor shaft of the cutter driving motor, and the cutter driving motor is mounted on the cutting moving frame, and the cutting movement The frame may be coupled to the support frame so as to be moved forward and backward by a cutting moving means, and the cutting transferring means may be composed of a cutting moving cylinder in which a cylinder rod is connected to the cutting moving frame. In this case, in a state in which the circular cutter 1264 rotates at high speed by the rotation of the motor shaft of the cutter driving motor, the cylinder rod of the moving cylinder advances to cut the reactor in the reactor tree by the circular cutter 1264 rotating at high speed. do.

On the other hand, the cutter moving device 1266 is composed of a cutter moving cylinder in which the cylinder rod is connected to the cutter driving motor through connecting means such as brackets and bolts.

When the cylinder rod of the cutter moving cylinder advances, the cutter drive motor and the cutter 1264 advance toward the reactor tree in the cutter frame 1262, and a plurality of reactors are cut out from the reactor tree by the cutter 1264 rotating at high speed. They form individual reactors.

Therefore, since a plurality of reactors can be automatically separated by the high-speed rotating cutter 1264 in the reactor tree, the process of manufacturing the reactor is an automated process, which has the effect of increasing the productivity of the reactor. .

Therefore, the present invention is to manufacture the reactor 10 cast by the precision casting method (Lost Wax method), and since the product manufactured by the precision casting method is cast within 1 mm based on the processed product, material cost and processing time are dramatically reduced can be reduced, and the number of tool wear can also be reduced. In addition, it can play an important role in mass-producing the same product and guaranteeing the same quality, which has the effect of realizing significant cost savings.

The precision casting method (lost wax method) makes a model with wax, etc. and assembles it based on the casting method, which is called a tree. This tree is coated with fireproofing agent and sand, and after it is repeated several times, it is put into a pressure vessel and melted with high pressure to create a space inside and use it as a mold for casting.

It is a representative method of precision casting and can be applied to all materials from special heat-resistant alloys to aluminum alloys. It is suitable for complex shape products of aircraft, nuclear reactors, machines, and automobiles from very small products to several tens of kg, and cost reduction is possible through mass production and automation.

According to the present invention, unnecessary processing of the external appearance of the parts is minimized and the processing time is shortened by processing the internal precision processing part as an emphasis, and the usage of Hastelloy X, a raw material, can also be reduced.

If the design is changed to enable the precision casting method from the existing raw material, round bar material, and the casting mold for lost wax is developed, it is not necessary to rough the outer shell during roughing-middle-finishing-finishing. The use of cutting tools can be reduced.

As shown in FIG. 1, the outer shell processing can be omitted through precision casting as in FIG.

In the above, specific embodiments of the present invention have been described above. However, the spirit and scope of the present invention is not limited to these specific embodiments, and various modifications and variations are possible within the scope that does not change the gist of the present invention. Anyone who has it will understand.

Therefore, since the embodiments described above are provided to fully inform those of ordinary skill in the art to which the present invention pertains the scope of the invention, it should be understood that they are exemplary in all respects and not limiting, The invention is only defined by the scope of the claims.

10. Reactor 110. Wax Injection Box
112. Wax Tree 122. Shell
132. Injection Vessel 142. Reactor Tree
1112. First split injection box body 1114. First half-section chamber forming groove
1116. First half injection hole forming groove 1122. Second split injection box body
1124. Second half-section chamber forming groove 1126. Second half-section injection hole forming groove
1132. Box 1 forming cylinder 1142. Box 2 forming cylinder
WTC. Wax Tree Forming Chamber WIH. wax injection hole
CWP. Coolant circulation passage RTC. Reactor Tree Forming Space
1220. Shell building frame 1220SBC. shell building chamber
1222. 1st Shell Building Split Body 1222HG. Section 1 Shell Building Home
1222 SIG. 1st half molding sand injection groove 1224. 2nd shell building split body
1224 HG. Section 2 Shell Building Home 1224SIG. Section 2 Molding Sand Injection Groove
AIP. Air circulation passage WTSA. wax tree shell assembly
1232. Heating furnace 1234. Heating device
1242. Water spray box 1244. Water nozzle
1244EH. Spray hole 1252. Gripper
1254. Grip Actuating Cylinder 1262. Cutter Frame
1264. Cutter 1266. Cutter mover

Claims (6)

a wax pattern injection unit for forming a wax tree 112 by injecting wax for manufacturing the reactor 10;
a shell building unit in which a shell casting sand for forming a shell 122 is injected so as to surround the outer surface of the wax tree 112 molded by the wax pattern injection device;
a dewax unit for removing the wax tree 112 by heating and melting the inside of the shell 122 molded by the shell building unit;
an injection unit for injecting a liquid metal (LM) 135 into the reactor tree molding space (RCT), which is the inner space of the shell 122 from which the wax tree 112 is removed by the dewax unit;
a shell knock-off unit for removing the shell 122 from the outer surface of the reactor tree 145 formed by curing the liquid metal (LM) 135 injected into the shell 122 by the injection unit;
a cut-off unit that separates the reactor (10) from the reactor tree (145) to form an individual reactor (10);
The wax pattern injection unit,
a wax injection box 110 having a wax tree forming chamber (WTC) for forming a wax tree 112 ;
a wax injection device for injecting liquid wax into the wax tree forming chamber (WTC) inside the wax injection box 110;
The shell building unit is
The first shell building divided body 1222;
a second shell building split body 1224 disposed at a position facing the first shell building split body 1222;
A molding sand injection device for injecting the molding sand into the shell building chamber (1220SBC) between the first shell building divided body 1222 and the second shell building divided body 1224;
The dewax unit includes a heating furnace 1232 for accommodating a wax tree shell assembly (WTSA) containing a wax tree 112 inside the shell;
A heating device 1234 for applying heat to the inside of the heating furnace 1232 to melt and remove the wax tree contained in the shell at a high temperature, and at the same time heat the shell formed by binding the molding sand to maintain the fixing state of the molding sand. including;
The shell building unit, the first shell building divided body 1222; a second shell building split body 1224 disposed at a position facing the first shell building split body 1222; A molding sand injection device for injecting the molding sand into the shell building chamber (1220SBC) between the first shell building divided body 1222 and the second shell building divided body 1224;
The first shell building divided body 1222 and the second shell building divided body 1224 are disposed to face each other, and a first half-cut shell building groove 1222HG is formed on the inner surface of the first shell building divided body 1222 . ) is provided, and a second half-cut shell building groove (1224HG) is provided on the inner surface of the second shell building divided body 1224,
A first half-cut molding sand injection groove communicating with the first half-cut shell building groove 1222HG from the upper end of the first shell building divided body 1222, and a second half-cut shell from the upper end of the second shell building divided body 1224 Including a second half-cut molding sand injection groove (1224SIG) communicating with the building groove (1224HG),
The first shell building divided body 1222 and the second injection box body are advanced in the opposite direction to each other, and the inner surfaces are pressed into close contact with each other to form a shell building mold 1220, and inside the shell building mold 1220, the The first half-cut shell building groove 1222HG and the second half-cut shell building groove 1224HG meet to form a shell building chamber 1220SBC inside the shell building frame 1220, the first half-cut molding sand injection groove, and the second The half-cut shell building grooves (1224HG) meet to form a molding sand injection hole communicating with the shell building chamber (1220SBC),
An air circulation passage (AIP) is provided in the inside of the first shell building divided body 1222 and the inside of the second shell building divided body 1224 forming the shell building frame 1220, and the air circulation passage (AIP) is connected to the external cooling air circulation device through a connecting pipe such as a hose, and the molding sand injected into the shell building chamber 1220SBC inside the shell building frame 1220 is mixed with the inside of the first shell building split body 1222 By the cooling air circulating inside the second shell building divided body 1224, the molding sand is quickly bound and hardened by the binder,
The dewax unit includes a heating furnace 1232 for accommodating a wax tree shell assembly (WTSA) containing a wax tree 112 inside the shell; A heating device 1234 for applying heat to the inside of the heating furnace 1232 to melt and remove the wax tree contained in the shell at a high temperature, and at the same time heat the shell formed by binding the molding sand to maintain the fixing state of the molding sand. including;
The shell knock-off unit is a shell 122 from the outer surface of the reactor tree 145 formed by curing the liquid metal (LM) 135 injected into the reactor tree forming space (RTC) inside the shell 122 . It consists of a shell peeling device to remove,
The shell peeling device includes a water spray box 1242 accommodating the reactor tree shell assembly therein, and a plurality of water nozzles 1244 installed in the water spray box 1242, and the water nozzle 1244 has a spray hole. (1244EH) Reactor manufacturing method improvement system, characterized in that it is provided.
delete delete delete delete According to claim 1,
The cut-off unit is
a gripper part for gripping the reactor tree;
and a cutter unit that cuts the reactor from the reactor tree to make individual reactors.

Images