JPH0857587A - Method for directly forming half-solidified metal slurry - Google Patents

Abstract

PURPOSE: To suitably execute the production of a half-solidified metal slurry and the formation thereof by assembling a series of apparatus for producing the half-solidified metal slurry and plural working devices for supplying to the formation by receiving the distribution of the slurry with the number of working devices required for pompleting the forming processing amount. CONSTITUTION: A vessel 3 received with the half-solidified metal slurry is shifted to a taking-out position of a horizontal multi-joint type vessel taking-out robot 6 at the out of a pre-heating furnace 5 from the lower position of the half- solidified metal slurry continuous producing apparatus 2 by rotating a rotary plate 4, and transported to a conveying carriage 8 which can travel on a travelling rail 7 from the rotary plate 4 in the unmanned condition with a computer control. The conveying carriage 8 laying this vessel 3 is controlled in a conveying system with the process computer and travelled to the position of one set among six sets of die casting machines 10 or a water vessel 14 as buffer at the distributing position of the half-solidified metal slurry arranged to the surrounding of the travelling rail 7 to supply the half-solidified metal slurry in the vessel 3 to each distributing position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new metal working method for directly supplying a semi-solidified metal slurry to a working machine and forming it into a near net shape, and to industrialize it.

[0002]

2. Description of the Related Art A semi-solidified metal slurry obtained by cooling a molten metal (alloy) with stirring to form dendritic primary crystals into granules has improved fluidity and uniformity at the time of molding, and macro segregation It is known that the workability, the quality of products, and the like are improved, such as reduction.

In the industrialization of this method, until now, a semi-solidified metal slurry was once cooled and solidified into a billet-shaped or small ingot, which was cut into an amount commensurate with the product weight, and then a solid-liquid coexisting temperature. The processing method of reheating to the area and forming into a near net shape with a processing device is being carried out.

However, the process is long, and further, for example, when a continuously cast billet is used, a continuous casting device, a billet temporary yard, a billet cutting device, a reheating device, etc. are required, and the investment amount of the equipment is large. However, there are many problems such as an increase in heat dissipation, an increase in the installation area of the device, and the need for heat energy for reheating.

On the other hand, a so-called rheo processing method in which a semi-solid metal slurry is directly supplied to a processing apparatus and molded into a near net shape without being cooled and solidified has been known as an idea, but it has not been industrialized yet. . That is, there have been difficult problems in matching the processing capacities of the continuous production apparatus of semi-solidified metal slurry and the processing apparatus, handling of the semi-solidified metal slurry, process control method, and the like.

[0006]

DISCLOSURE OF THE INVENTION The present invention advantageously solves the above-mentioned problems in supplying a semi-solidified metal slurry directly to a processing apparatus to form a near net shape. It is an object of the present invention to propose a continuous direct semi-solidifying metal slurry forming method capable of suitably performing the forming.

[0007]

The summary of the present invention is as follows. A series of devices for continuously producing a semi-solidified metal slurry by cooling the molten metal while stirring, and a plurality of processing devices for receiving the distribution of the semi-solidified metal slurry for forming.
It is a direct forming method of a semi-solidified metal slurry, which is combined by the number of processing devices required to achieve a forming throughput corresponding to the production amount of the semi-solidified metal slurry.

In the method described in the paragraph (1), the balance between the production amount of the semi-solidified metal slurry and the molding treatment amount is lost,
A method for directly forming a semi-solidified metal slurry, wherein a buffer for accumulating an excess of the semi-solidified metal slurry is included in the system of the processing device when the production amount of the semi-solidified metal slurry becomes excessive as compared with the forming throughput.

[0009] The method for directly forming a semi-solidified metal slurry according to the item [1], wherein the buffer for accumulating the semi-solidified metal slurry is a water tank for cooling and solidifying the semi-solidified metal slurry.

[0010] The method for directly forming a semi-solidified metal slurry according to the item [1], wherein the mold filling weights of the plurality of processing devices are two or more.

[0011] or, the weight of the semi-solidified metal slurry distribution corresponds to the mold filling weight and the buffer supply weight of each processing apparatus, and the semi-solidified metal slurry weight distribution is , The semi-solidified metal slurry is continuously discharged from the semi-solidified metal slurry manufacturing apparatus through a discharge nozzle equipped with a flow rate control device, and the discharged semi-solidified metal slurry is intermittently moved for each weight to be distributed. Received one after another by a large number of circulating transport containers, and by these transport containers,
A method for directly forming a semi-solidified metal slurry, which comprises sequentially delivering and supplying to a plurality of processing devices and buffers respectively arranged in the circulation path.

[0012] In the method described in the above item 1 or 2, the semi-solidified metal slurry is successively transferred to a large number of transfer containers that are intermittently moved and circulated for each weight corresponding to the mold filling weight and the buffer supply weight of each processing apparatus. Upon receiving, the weight of the semi-solidified metal slurry received in the transport container is continuously measured, and when the respective weights to be distributed are reached, the discharge of the semi-solidified metal slurry from the discharge nozzle is temporarily stopped by the flow control device, A method for directly forming a semi-solidified metal slurry, characterized in that the operation of moving the transport container is repeatedly performed during this stop.

[0013] In the method described in the paragraph 1, or 2, when the mold filling weight and the buffer supply weight of each processing apparatus are different by two or more types, in distributing two or more different weights of the semi-solidified metal slurry, A semi-solid metal characterized by controlling the weight of the semi-solidified metal slurry received in each transport container and controlling the transport system of the transport container by a process computer to deliver and supply it to the corresponding processing equipment and buffer. Direct molding method of slurry.

In the method according to ,,,, or, the discharge rate of the semi-solidified metal slurry from the carry-out nozzle is calculated online from the continuous measurement information of the weight of the semi-solidified metal slurry received in the transport container, By the feedback system based on the calculated value, the flow rate control device controls the semi-solidified metal slurry to an appropriate discharge speed,
A method for directly molding a semi-solidified metal slurry, which comprises stably discharging the semi-solidified metal slurry.

[0015]

OPERATION Background of the invention and its operation will be described below. This invention combines a series of devices for continuously producing a semi-solidified metal slurry by stirring a molten metal under cooling and a plurality of processing devices for directly forming the semi-solidified metal slurry into a near net shape, thereby producing a semi-solidified metal. The essence is to match the amount of molding process with the amount of slurry produced so that the semi-solidified metal slurry can be directly molded.

[0016] This is because, in the research on the manufacturing technology of semi-solidified metal slurry by the inventors for many years, in order to continuously and stably manufacture the semi-solidified metal slurry by the semi-solidified metal slurry manufacturing apparatus, its manufacturing scale is However, there is a limit to reducing the discharge rate of the semi-solidified metal slurry, and therefore, there is a lower limit to the production amount of the semi-solidified metal slurry in a series of equipment for producing the semi-solidified metal slurry, and the normal processing It is necessary to avoid a shortage of the amount of semi-solidified metal slurry produced at a molding amount of one device to the lower limit of the production amount, and further, to stop the discharge of the semi-solidified metal slurry for a long time for stable operation. It depends on the experience.

The operation of the present invention will be described in detail below. As described above, in the present invention, in the direct forming of the semi-solidified metal slurry, the semi-solidified metal slurry produced from a series of devices for producing the semi-solidified metal slurry is distributed to a plurality of processing devices to form the semi-solidified metal slurry. The total amount of forming processing by a plurality of processing devices is balanced with respect to the amount of slurry produced, and the entire amount of the semi-solidified metal slurry produced is directly formed.

However, when the mold filling weight of the processing device is too small, or when some of the processing devices are stopped due to a trouble, the balance between the production amount of the semi-solidified metal slurry and the molding treatment amount is disturbed, The production amount of the semi-solidified metal slurry may be excessive. Therefore, it is important to be able to respond flexibly to such cases, and for that purpose it is often necessary to include a buffer in the processing equipment system, and the buffer should be a water tank for cooling and solidifying the semi-solidified metal slurry. Is preferred. The material cooled and solidified in this water tank can be advantageously used for the thixo process of reheating to a solid-liquid coexistence temperature range and molding.

Further, in the present invention, the near net shape is formed by a plurality of processing devices, but it is not necessary to limit the product weight or the mold filling weight to one kind.
There may be more than one kind, and by doing so, two or more kinds of products having different weights can be molded in the same operation.

Next, a more specific method for favorably performing the direct molding of such a semi-solidified metal slurry will be described.

The semi-solidified metal slurry is continuously discharged from the semi-solidified metal slurry manufacturing apparatus through a discharge nozzle equipped with a flow rate control unit, and the discharged semi-solidified metal slurry is filled with the mold filling weight of each processing apparatus. And a large number of, for example, cup-shaped transport containers that move and circulate intermittently for each weight distributed corresponding to the buffer supply weight, and the plurality of transport containers each provide a plurality of circulation paths. Sequential delivery to processing equipment and buffers. At that time, the weight of the semi-solidified metal slurry received in the transport container below the discharge nozzle is continuously measured, and the semi-solidified metal slurry is temporarily discharged from the discharge nozzle by the flow controller when the weight reaches the weight to be distributed. Stop and move the transport container during this stop,
Next, the operation of receiving the semi-solidified metal slurry again is repeatedly performed in the empty transport container that moves and circulates below the discharge nozzle.

Here, in order to continuously measure the weight of the semi-solidified metal slurry received in the transfer container, for example, the transfer container may be supported by a column and a load cell incorporated in the column may be used.

Further, when the distribution weights are different, that is, when the mold filling weight and the buffer supply weight of the respective processing apparatuses are different over two or more kinds, the weight of the semi-solidified metal slurry received in the respective transport containers is controlled, and The process computer controls the transfer system of the transfer container to deliver and supply it to the corresponding processing equipment and buffer.

Furthermore, in order to obtain good product quality and to stably discharge the semi-solidified metal slurry, it is important to adjust the discharged semi-solidified metal slurry to an appropriate solid phase ratio. The most effective means of adjusting the solid phase ratio is to control the discharge rate of the semi-solidified metal slurry and adjust the residence time of the molten metal supplied to the stirring / cooling tank of the semi-solidified metal slurry manufacturing apparatus in that tank. It is to be.

Therefore, the discharge rate from the discharge nozzle is calculated online from the information on the continuous measurement of the weight of the semi-solidified metal slurry received in the transport container, and the feedback system based on this calculation result is used by the flow controller to control the semi-solidified metal. Control the slurry to the proper discharge rate. Here, the proper discharging rate takes into consideration the temporary stop time of discharging the semi-solidified metal slurry.

Thus, according to the present invention, the production of the semi-solidified metal slurry having an appropriate solid fraction and the discharge thereof can be carried out without any trouble, and the production amount of the semi-solidified metal slurry and the direct molding by a plurality of processing devices. In addition to balancing the processing amount, it is possible to flexibly respond to cases such as when the mold filling weight (product weight) of multiple processing equipment is different, the molding processing amount decreases due to troubles, and the semi-solidified metal slurry becomes excessive. It becomes possible to continuously and directly perform the direct molding of the semi-solidified metal slurry into the near net shape without any trouble in supplying the semi-solidified metal slurry to the processing apparatus.

Next, a concrete example of matching the production amount of the semi-solidified metal slurry and the forming treatment amount of the present invention will be described.

The plant is a medium-sized FC system component such as an automobile whose production capacity is 480 pieces / h (weight per piece: 8 kg). This is a scale equivalent to 6 units of an average vertical die-casting machine (processing device) having a cycle time of 45 seconds / one piece.

The semi-solidified metal slurry discharged from one semi-solidified metal slurry producing apparatus is received in a transfer container having a heat retaining function and is not retained (if the retention time is long, the particle size of the semi-solidified metal slurry is increased). Considering the case of direct delivery to a die-casting machine, the time required to receive the discharged semi-solidified metal slurry per transport container
7.5 seconds. At present, the limit of the capacity of the transfer line including the practical robot is 7.5 seconds, and since it is within this limit, one die-casting machine plant is suitable for one semi-solidified metal slurry manufacturing device as one unit. ing.

A trial calculation of the production amount of the semi-solidified metal slurry and the forming treatment amount in this unit is as follows.
Max 2.27 liter automobile parts for mold filling (including biscuit part) in a vertical die casting machine,
When a continuous production is performed by a total of 6 die casting machines with a cycle time of 45 seconds per unit, the production amount in the semi-solidified metal slurry manufacturing device per unit time, the product production amount in the die casting machine, etc. are as follows. Is the street. However, the specific gravity of the semi-solidified metal slurry is 7,000 kg / m ³ , and the product yield is 50%.

Production amount of semi-solidified metal slurry [2.27 (l) x 6 (unit) x 60 (s)] / 45 (s) ≈ 18 (l / min)
= 126 (kg / min) --- 7.56 (t / h) ・ Product production quantity 60 (s) / 45 (s) x 6 (units) = 8 (units / min) --- 480 (units / h)・ Product production weight 126 (kg / min) x 0.5 = 63 (kg / min) --- 3.78 (t / h)

The appropriate scale (production amount) in the semi-solidified metal slurry manufacturing apparatus for continuously and stably producing and discharging the semi-solidified metal slurry is 15 l / min or more from the experience of many years of research. It is preferable that Further, the upper limit is determined by the number of processing devices to be installed, but there is a limit to the number of actually installed devices, and it is realistic that the number is 10 or less.
It becomes about 30 l / min.

Next, the method for directly forming a semi-solidified metal slurry according to the present invention will be described in order with reference to FIGS.

FIG. 1 is an explanatory view showing a direct forming mechanism of a semi-solidified metal slurry. In FIG. 1, the melt whose components have been adjusted is supplied to the melt holding furnace 1 from a ladle, a melting furnace or the like (not shown). The molten metal supplied to the molten metal holding furnace 1 is supplied to a semi-solidified metal slurry continuous production apparatus 2, where stirring is added under cooling to continuously produce a semi-solidified metal slurry to obtain a semi-solidified metal slurry having a predetermined solid phase ratio. Discharge the solidified metal slurry,
The semi-solidified metal slurry discharged in the preheating furnace 5 is received by the transport container 3 having a heat retaining function, which is located below the semi-solidified metal slurry continuous production apparatus 2.

Here, the container 3 is placed on the rotary plate 4 outside the preheating furnace 5 and enters the preheating furnace 5 by the rotation of the rotary plate 4 to be preheated and successively reach the position below the semi-solidified metal slurry continuous production apparatus 2. It is like this. The container 3 is preferably preheated to prevent the temperature of the semi-solidified metal slurry from decreasing.

Container 3 receiving this semi-solidified metal slurry
Is moved from the lower position of the semi-solidified metal slurry continuous production apparatus 2 to the take-out position of the horizontal articulated container take-out robot 6 outside the preheating furnace 5 by the rotation of the turn plate 4, and the take-out robot 6 moves the turn plate 4 from the turn plate 4. It is moved to a carrier truck 8 which can run unmanned on the traveling rail 7 by computer control. The transfer carriage 8 on which the container 3 containing the semi-solidified metal slurry is placed is controlled by a process computer, and the six die-cast machines 10 to which the semi-solidified metal slurry is distributed around the traveling rail 7 are distributed. One of them is moved to the position of the water tank 14 serving as a buffer, and here the semi-solidified metal slurry in the container 3 is supplied to the die cast machine 10 or the water tank 14 of the distribution destination by the horizontal articulated loading robot 9. . Then, in the die cast machine 10 supplied with the semi-solidified metal slurry, the near net shape is immediately formed.

The empty container 3 which has finished supplying the semi-solidified metal slurry to the die-casting machine 10 or the water tank 14 is loaded on the transfer carriage 8 again by the loading robot 9 and transferred to the position of the empty container return conveyor 12, where Then, the robot 11 is moved to the empty container returning conveyor 12 by the orthogonal type empty container returning robot 11. The transferred container 3 is
It moves on the empty container return conveyor 12 and is placed on the rotating plate 4 again by the orthogonal type empty container feeding robot 13, and it moves sequentially by the rotation of the rotating plate 4 and enters the preheating furnace 5 to be semi-solidified while being preheated. The semi-solidified metal slurry which reaches the lower position of the continuous metal slurry manufacturing apparatus 2 and is discharged again is received. Then, these series of operations are repeated under computer control.

FIG. 2 is an explanatory view of a series of devices for manufacturing and discharging the semi-solidified metal slurry and for receiving the carried-out semi-solidified metal slurry in a container.

In FIG. 2, the molten metal in the molten metal holding furnace 1 supplied from a ladle, a melting furnace or the like (not shown) is poured into the tundish 23 through the dipping nozzle 22 while the flow rate is adjusted by the sliding nozzle 21. To be done.
The molten metal poured into this tundish 23 flows into the stirring / cooling tank 24 of the semi-solidified metal slurry continuous production apparatus 2 and is stirred by the rotation of the stirrer 25 having a screw groove while being cooled and the semi-solidified metal is stirred. A discharge nozzle 27 having a high-frequency induction heating mechanism that becomes slurry and heats the nozzle itself while the flow rate is controlled by a flow rate control device 26 including a hydraulic cylinder and a sliding nozzle.
A semi-solidified metal slurry having a predetermined solid phase rate is discharged.

The discharged semi-solidified metal slurry is received in the container 3 located below the discharge nozzle 27 on the rotary plate 4 in the preheating furnace 5, while the load cell 29 is operated by the operation of the air cylinder 30. The built-in support 28 is pushed up to support the container 3, and the load cell 29 continuously measures the weight of the semi-solidified metal slurry 40 received by the container 3.

On the basis of the information on the continuous measurement of the weight, the semi-solidified metal slurry 40 received in the container 3 by the flow rate controller 26 is placed in one of the six die casting machines 10 or the water tank 14. The discharge of the semi-solidified metal slurry from the discharge nozzle 27 is temporarily stopped at the time when the weight to be distributed is reached. During this stop, the column 28 is pulled down by the operation of the air cylinder 30,
The support of the container 3 by 8 is removed, the rotary plate 4 is rotated, and the container 3 is moved so that another empty container 3 is located below the discharge nozzle 27.

Further, the discharge rate of the semi-solidified metal slurry from the discharge nozzle 27 is calculated online from the continuous measurement information of the weight of the semi-solidified metal slurry 40 received in the container 3, and the flow rate is calculated by the feedback system based on this calculated value. The controller 26 controls the discharge of the semi-solidified metal slurry from the discharge nozzle 27 to an appropriate discharge rate. Thus, it is possible to stably discharge the semi-solidified metal slurry having a predetermined solid phase rate. The appropriate discharge rate of the semi-solidified metal slurry also takes into consideration the temporary suspension time of the semi-solidified metal slurry discharge, as described above.

FIG. 3 is an explanatory view showing the development of a preheating furnace for preheating a container for transportation. The operation of placing the empty container 3 on the rotating plate 4 and taking out the container 3 containing the semi-solidified metal slurry from the rotating plate 4 through the preheating furnace 5 will be described with reference to FIG.

At the position A, the empty container 3 is placed on the rotating plate 4 by the empty container feeding robot 13 shown in FIG. The container 3 enters the preheating furnace 5 at a position adjacent to the direction of the arrow in the drawing and starts preheating by opening the partition plate 31 in synchronization with the rotation of the rotary plate 4. The container 3 sequentially moves as the rotation of the rotating plate 4 advances, and reaches the position B directly below the discharge nozzle 27 having a high-frequency heating coil for heating the nozzle itself on the outer periphery thereof. Here, when the semi-solidified metal slurry discharged from the discharge nozzle 27 is received and the semi-solidified metal slurry 40 reaches the distribution weight, the discharge of the semi-solidified metal slurry from the discharge nozzle 27 is temporarily stopped. During this stop, the rotation of the rotary plate 4 moves the container 3 to the adjacent position in the direction of the arrow in the drawing. The continuous measurement of the weight of the semi-solidified metal slurry 40 received in the container 3 is the same as in the case of FIG.

Here, the next empty container 3 moves to the position B and receives the semi-solidified metal slurry discharged again from the discharge nozzle 27.

Container 3 containing semi-solidified metal slurry 40
Further moves to the position C outside the preheating furnace 5 by opening the partition plate 32 in synchronization with the rotation of the rotary plate 4, and is transferred onto the transport carriage 8 by the container take-out robot 6 shown in FIG. .

FIG. 4 is an explanatory view of the carrier truck. In FIG. 4, the container 3 containing the semi-solidified metal slurry 40 enters the container holding box 33 of the carrier 8. This container holding box 33
Has a heat retaining function for preventing cooling of the semi-solidified metal slurry 40. On the other hand, the carrier vehicle 8 travels on the traveling rail 7 by the drive wheels 35 which are interlocked with the motor 34 operated by computer control.

FIG. 5 is an explanatory view of the vertical die casting machine. In FIG. 5, 36 is an injection cylinder, 37 is a plunger, 38 is a sleeve, and 39 is a mold. With these, a semi-solid metal slurry is formed into a near net shape, and the container 3 is loaded with the loading robot 9 shown in FIG. When the semi-solidified metal slurry is supplied to the sleeve 38 by means of the injection cylinder 36, the plunger 37 and the sleeve 38 in order to facilitate the supply work.
And tilt them together.

[0049]

EXAMPLES C: Using a series of apparatuses shown in FIGS. 1 to 5 as a raw material for a cast iron material containing 2.5 mass%, a continuous semi-solid metal slurry was produced according to the procedure described above, and its near net Direct molding into shape was performed.

Here, the molten metal holding temperature in the molten metal holding furnace 1:
1380 ° C., rotation speed of stirrer 25: 300 rpm, solid phase ratio of semi-solidified metal slurry to be discharged: 0.3, discharge nozzle 27
Discharge rate of semi-solidified metal slurry from: 18 l / min, preheating temperature of container 3 in preheating furnace 1300: 1300, and weight of semi-solidified metal slurry received in container 3 (distributed weight):
It was set to 15.9 kg. In the above, the time for temporarily stopping the discharge of the semi-solidified metal slurry when the container 3 is moved is 1
It was 2 seconds each time.

As a result, the continuous production of the semi-solidified metal slurry can be carried out without any trouble, and the continuous production of the semi-solidified metal slurry can be carried out at 8 pieces / minute by 6 die casting machines without directing it to the water tank of the buffer. The molded products could be subjected to the molding process described above, and the molded products were sent to the product conditioning process after the biscuit part was cut off in the usual process to be refined, and good quality products were obtained.

Although the above is the case of cast iron, the same treatment can be applied to other metals such as Cu alloy and Al alloy. Further, in the case of the low melting point alloy, the molten metal temperature and the preheating temperature of the container 3 are naturally lowered, but in the case of the Al alloy, the preheating temperature of the container 3 was about 600 ° C.

[0053]

According to the present invention, it is possible to realize a process in which a semi-solidified metal slurry is continuously and stably produced, and the semi-solidified metal slurry is directly supplied to a processing apparatus and molded.
This eliminates the need for a long process of solidifying the semi-solidified metal slurry into a billet, cutting it to a predetermined size, and then reheating it to a solid-liquid coexistence temperature range to form it, which requires a lot of investment for it. Can be reduced. Further, according to the present invention, it becomes possible to design a compact plant capable of manufacturing the material from the melting to the product in one place and in a short period of time.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a direct forming mechanism of a semi-solidified metal slurry.

FIG. 2 is an explanatory view of a series of devices for manufacturing and discharging a semi-solidified metal slurry and receiving the discharged semi-solidified metal slurry in a container.

FIG. 3 is an explanatory diagram in which a preheating furnace for preheating a container for transportation is developed.

FIG. 4 is an explanatory diagram of a carrier truck.

FIG. 5 is an explanatory diagram of a vertical die casting machine.

[Explanation of symbols]

 1 Molten Metal Holding Furnace 2 Semi-solid Metal Slurry Continuous Manufacturing Device 3 Container 4 Rotating Plate 5 Preheating Furnace 6 Extracting Robot 7 Traveling Rail 8 Transport Cart 9 Loading Robot 10 Vertical Die Casting Machine 11 Empty Container Return Robot 12 Empty Container Returning Conveyor 13 Empty Container loading robot 14 Water tank 21 Sliding nozzle 22 Immersion nozzle 23 Tundish 24 Stirring / cooling tank 25 Stirrer 26 Flow controller 27 Discharge nozzle 28 Strut 29 Load cell 30 Air cylinder 31 Partition plate 32 Partition plate 33 Container holding box 34 Motor 35 Drive Wheel 36 Injection cylinder 37 Plunger 38 Sleeve 39 Mold 40 Semi-solid metal slurry

Claims (8)

[Claims] 1. A semi-solidification apparatus comprising: a series of apparatuses for continuously manufacturing a semi-solidified metal slurry by cooling a molten metal while stirring; and a plurality of processing apparatuses for receiving the semi-solidified metal slurry to form the semi-solidified metal slurry. A direct forming method for a semi-solidified metal slurry, which is combined with the number of processing devices required to achieve a forming amount corresponding to the production amount of the metal slurry. 2. The method according to claim 1, wherein when the production amount of the semi-solidified metal slurry is out of balance with the molding treatment amount, and the production amount of the semi-solidified metal slurry becomes excessive as compared with the molding treatment amount, A method for directly forming a semi-solid metal slurry, characterized in that a buffer for accumulating an excess of the semi-solid metal slurry is included in a system of processing equipment. 3. The method for directly forming a semi-solidified metal slurry according to claim 2, wherein the buffer for accumulating the semi-solidified metal slurry is a water tank for water-cooling and solidifying the semi-solidified metal slurry. 4. The method according to claim 1, wherein
A direct molding method of a semi-solidified metal slurry in which the mold filling weights of a plurality of processing devices are two or more. 5. The method according to claim 1, 2 or 4, wherein the distribution weight of the semi-solidified metal slurry corresponds to the mold filling weight and the buffer supply weight of the respective processing equipment. The weight of the metal slurry is such that the semi-solid metal slurry is continuously discharged from the semi-solid metal slurry manufacturing apparatus through a discharge nozzle equipped with a flow rate control device, and the discharged semi-solid metal slurry is distributed respectively. Semi-solid metal, which receives one after another into a large number of transport containers that move and circulate intermittently, and sequentially delivers and supplies them to a plurality of processing devices and buffers that are respectively arranged in the circulation path by these transport containers. Direct molding method of slurry. 6. The method according to claim 1, 2, 4 or 5, wherein a large number of transfer containers are intermittently moved and circulated for each weight corresponding to a mold filling weight and a buffer supply weight of each processing apparatus. When receiving semi-solidified metal slurries one after another, the weight of the semi-solidified metal slurries received in the transfer container is continuously measured, and when the weight reaches the weight to be distributed, the flow control device discharges the semi-solidified metal slurries from the discharge nozzle. The method for directly forming a semi-solidified metal slurry is characterized in that the operation of temporarily stopping the operation and the operation of moving the transport container during the stop are repeated. 7. The method according to claim 1, 2, 4, 5 or 6, wherein when the mold filling weight and the buffer supply weight of each processing device are different by two or more types, two or more different weight semi-weights are used. When the solidified metal slurry is distributed, the weight of the semi-solidified metal slurry received in each transfer container is controlled, and the transfer system of the transfer container is controlled by the process computer, and delivered to the corresponding processing equipment and buffer. A method for directly forming a semi-solidified metal slurry, which comprises: 8. The method according to claim 1, 2, 4, 5, 6 or 7, wherein the semi-solidified metal slurry from the carry-out nozzle is on-line from the continuous measurement information of the weight of the semi-solidified metal slurry received by the transport container. The discharge speed of the semi-solidified metal slurry is controlled to an appropriate discharge speed by the flow rate controller by the feedback system based on this calculated value.
A method for directly molding a semi-solidified metal slurry, which comprises stably discharging the semi-solidified metal slurry.