WO2016208027A1 - 鋳造装置及び鋳造方法 - Google Patents
鋳造装置及び鋳造方法 Download PDFInfo
- Publication number
- WO2016208027A1 WO2016208027A1 PCT/JP2015/068309 JP2015068309W WO2016208027A1 WO 2016208027 A1 WO2016208027 A1 WO 2016208027A1 JP 2015068309 W JP2015068309 W JP 2015068309W WO 2016208027 A1 WO2016208027 A1 WO 2016208027A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casting
- refrigerant
- temperature
- core pin
- controller
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
Definitions
- the present invention relates to a casting apparatus and a casting method.
- the cast pin that forms the linerless cylinder bore has a hollow structure, a cooling pipe is inserted and arranged inside the cooling pipe, and an internal cooling water passage is provided at the center of the cooling pipe.
- a spiral cooling water passage made of a spiral groove is provided on the inner peripheral surface of the core pin facing the outer peripheral surface of the steel pipe, and the cooling water is supplied from the internal cooling water passage of the cooling pipe and cast when flowing through the spiral cooling water passage.
- Patent Document 1 A casting apparatus for cooling the punch pin is known (Patent Document 1).
- the above prior art has a problem that even if the surface temperature of the core pin can be made uniform by suppressing the stagnation of the flow of the cooling medium, the temperature of the core pin itself during casting varies every cycle. is there.
- the problem to be solved by the present invention is to provide a casting apparatus and a casting method capable of suppressing variations in the temperature of the core pin during casting for each cycle.
- the present invention relates to a casting apparatus that performs casting by supplying molten metal to a cavity formed in a casting mold in a state in which the casting pin is arranged in the casting mold, and the casting pin of the casting pin at a predetermined time at the end of one casting cycle.
- the above problem is solved by detecting the temperature and controlling the amount of cooling energy applied to the core pin during the next casting cycle in accordance with the detected temperature.
- the temperature of the casting pin is stabilized at the end of the casting cycle.
- the cooling energy applied to the casting pin in the next cycle according to this temperature, the casting pin during casting is controlled. It is possible to suppress the temperature of the punch pin from being varied every cycle.
- FIG. 4A It is a time chart which shows the casting method using the casting apparatus of FIG.3 and FIG.4. It is a figure which shows an example of the control table memorize
- FIG. 1 is a perspective view showing an example of a linerless cylinder block 4 (hereinafter also referred to as a cylinder block 4) to which a casting apparatus and method according to an embodiment of the present invention are applied.
- a linerless cylinder block 4 made of an aluminum alloy of a V-type 6-cylinder engine for automobiles.
- the cylinder block 4 as a cast product is provided with three cylinder bores 41 on each of the left and right sides.
- the casting apparatus and casting method of the present invention are not particularly limited to the form and specification of the cast product, and if the purpose is to suppress the formation of a cast hole due to temperature variation of the casting mold per cycle, the use thereof Is not limited.
- the cylinder bore 41 of the linerless cylinder block 4 since the liner is not inserted and the casting surface becomes the surface of the cylinder bore 41, the occurrence of a cast hole becomes a fatal quality defect.
- the casting apparatus and the casting method of the present invention will be described in an embodiment characterized by a core pin 3 for forming the cylinder block 4 of the linerless cylinder block 4.
- FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1 and shows that the casting mold 2 is clamped so that the core pin 3 is located at a portion corresponding to the cylinder bore 41 of the cylinder block 4.
- FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1 and is a cross-sectional view showing the entire casting mold 2.
- the casting mold 2 of the present embodiment is provided between the fixed mold 21, the movable mold 22 that moves forward and backward in the direction of the arrow X facing the fixed mold 21, and the fixed mold 21 and the movable mold 22, respectively.
- the upper die 23 and the lower die 24 are moved forward and backward in the direction. As shown in FIG.
- a cavity 25 is formed inside these casting molds, and the cavity 25 is not illustrated.
- the movable die 22 is opened in the X direction, the upper die 23 and the lower die 24 are moved back in the Z direction, and then the cylinder block 4 which is the product Is released.
- a casting method in which a molten metal such as molten aluminum is poured into a precise casting mold at high speed and high pressure to instantly cast a product is a mold casting method of an aluminum casting called pressure die casting (PDC).
- PDC pressure die casting
- the upper die 23 and the lower die 24 are both configured to be able to advance and retreat in the Z direction due to the shape of the cylinder block 4 of the present embodiment, depending on the shape of the cast product, that is, the cast product can be easily formed in the mold release process.
- a fixed casting mold may be used according to the shape.
- the core pin 3 is fixed to the movable die 22.
- FIG. 3 only three cast pins 3 are shown because the three-cylinder cylinder bore 41 on one side of the V-type six-cylinder engine is shown, but the actual movable die 22 has a number corresponding to the number of cylinder bores 41. A number of cast pins 3 are fixed.
- FIG. 4A is a diagram showing details of the core pin 3 of FIG. 3 and a main configuration other than the casting die 2 of the casting apparatus 1, and FIG. 4B is a partially broken perspective view showing an outline of the core pin 3. is there.
- the cast pin 3 of the present embodiment has an outer cylinder 31 and an inner cylinder 32.
- the outer cylinder 31 is formed in a bottomed cylinder shape having a bottom portion, an opening at the top portion, and a cylindrical side wall (a cylindrical shape slightly tapered in consideration of cutting), and an outer surface is cast.
- the outer surface of the pin 3 is configured.
- the inner cylinder 32 has a solid shape in which spiral grooves 33 having an equal pitch with respect to the axial direction are formed on the outer surface, and through-holes 34 penetrating the inside in the axial direction are formed.
- the inner cylinder 32 is inserted into the outer cylinder 31 as shown in FIG. 4B.
- One end (upper end in FIG. 4A, lower end in FIG.
- a through hole 34 penetrating the inner cylinder 32 is formed at the center of the solid inner cylinder 32 in the axial direction, and the tip (the lower end in FIG. 4A and the upper end in FIG. 4B) is branched into a plurality of through holes. ing. In the diagram shown in FIG. 4B, it is shown that there are four branches.
- the tip of the through hole 34 communicates with the space 38 provided between the bottom of the outer cylinder 31 and the tip of the inner cylinder 32 described above. Further, the base end (the upper end in FIG. 4A and the lower end in FIG. 4B) of the through hole 34 communicates with the refrigerant inlet 36 of the inner cylinder 32.
- the refrigerant when the refrigerant is supplied from the refrigerant inlet 36, the refrigerant flows down the through hole 34 and branches into a plurality at the tip and then reaches the space 38. And this refrigerant
- coolant flows through the spiral flow path 35 from the front-end
- the refrigerant that has reached the base end of the spiral flow path 35 flows out of the core pin 3 from the refrigerant outlet 37.
- the base end of the through-hole 34 is the coolant inlet 36 and the base end of the spiral channel 35 is the coolant outlet 37, and the coolant for cooling the outer cylinder 31 is the cast pin.
- the base end of the spiral flow path 35 is used as the refrigerant inlet 36 and the base end of the through hole 34 is used as the refrigerant outlet 37. It is good also as a structure which flows the refrigerant
- the cooling capability on the tip end side of the core pin 3 is higher than the cooling capability on the base end side
- the latter configuration In the configuration in which the coolant flows from the base end of the core pin 3 toward the tip, the cooling capability on the base end side of the core pin 3 is higher than the cooling capability on the tip side. Therefore, it is desirable to select appropriately according to the target casting product and casting mold structure.
- the former configuration is adopted because the temperature on the distal end side of the core pin 3 becomes higher than the temperature on the proximal end during casting.
- the pitch in the axial direction of the spiral groove 33 formed on the outer surface of the inner cylinder 32 is not equal, but instead the pitch on the distal end side is set to the proximal end. It is set smaller (narrower) than the side pitch.
- symbol is attached
- the pitch of the two spiral grooves 33 on the distal end side is formed narrower than the pitch of the three spiral grooves 33 on the proximal end side.
- the area of the refrigerant in contact with the outer cylinder 31 is larger on the distal end side, so that the cooling capacity on the distal end side of the core pin 3 can be made larger than the cooling capacity on the proximal end side.
- the temperature gradient along the axial direction of the extraction pin 3 can be made as close to zero as possible.
- the pitch of the spiral grooves 33 is narrowed, the pitch may be gradually narrowed from the proximal end side toward the distal end side.
- the sectional area of the spiral groove 33 on the distal end side of the core pin 3 is larger than the sectional area of the spiral groove 33 on the proximal end side. It may be set. Even in this case, since the area of the refrigerant in contact with the outer cylinder 31 is larger on the distal end side, the cooling capacity on the distal end side of the core pin 3 can be made larger than the cooling capacity on the proximal end side. The temperature gradient along the axial direction of 3 can be as close to zero as possible. In addition, when enlarging the cross-sectional area of the spiral groove 33, you may increase gradually from the base end side toward the front end side.
- FIG. 7B shows a cylinder block under the same conditions using the core pin 3 shown in FIG. 4A (the spiral groove 33 has an equal pitch) and the core pin 3 shown in FIG. 7A (the pitch of the spiral groove 33 is narrower toward the tip side).
- FIG. 7A shows the result of having measured the temperature of the casting pin 3 at the time of casting shaping
- molding 4 (sample number N 12) on the same conditions. From this result, as shown in FIG. 7A, it was confirmed that when the pitch of the spiral groove 33 is narrowed toward the tip side, it becomes lower by about 20 deg than that formed at an equal pitch. Therefore, if the configuration shown in FIG. 7A is adopted, it is possible to save energy of cooling energy by the cooling controller 12 described later, while shortening the cooling time of the casting process.
- the spiral groove 33 formed on the outer surface of the inner cylinder 32 is a double spiral groove 33A, 33B, and the through hole 34 formed in the center of the inner cylinder 32 is omitted.
- the base end of one of the double spiral grooves 33 ⁇ / b> A is a refrigerant inlet 36
- the tip of the other 33 ⁇ / b> B is a refrigerant outlet 37.
- the distal end of one side 33A of the double spiral groove and the proximal end of the other 33B are connected by the distal end of the inner cylinder 32 (lower end in FIG. 7C).
- the refrigerant flowing in from the refrigerant inlet 36 flows toward one end of the double spiral groove 33A as indicated by an arrow, reaches the other end 33B of the double spiral groove at the tip of the inner cylinder 32, and then The other 33B flows toward the base end of the inner cylinder 32 and flows out from the refrigerant outlet 37 to the outside.
- cooling energy can be applied to the outer cylinder 31 both in the forward path and in the return path of the refrigerant, which is efficient.
- the structure of the other than this is the same as the structure of the core pin 3 shown to FIG. 4A, the same code
- the casting apparatus 1 gives a temperature detector 11 that detects the temperature of the core pin 3 at a predetermined time at the end of one casting cycle, and gives cooling energy to the core pin 3.
- the cooling controller 12 controls the amount of cooling energy applied to the core pin 3 during the next casting cycle in accordance with the detected temperature detected by the temperature detector 11.
- the temperature detector 11 includes a temperature sensor such as a thermocouple as shown in FIG. 4A and is inserted into the outer cylinder 31 and the inner cylinder 32 in order to detect the temperature of the outer cylinder 31.
- the detection signal of the temperature detector 11 is read by the controller 17 at a predetermined time at the end of one casting cycle.
- This predetermined time is, in the N cycles of the casting process shown in FIG. 5 (A), if the period from t 2 when the exit pressure until t 0 when the next (N + 1) th cycle is started well, and more preferably it is between t 4 when completed the purge to be described later, from t 3 when the exit vacuum.
- the selection of the predetermined time is preferably a period during which the temperature of the core pin 3 is stable.
- FIG. 5 (D) showing the temperature profile of the core pin 3, the temperature change of the core pin 3 is changed. It can be said that the period between time t 2 to t 4 or time t 3 to t 4 with a small rate is preferable.
- the cooling controller 12 is a refrigerant pipe (circulation system) 13 that circulates refrigerant in the vicinity of the surface of the core pin 3, a refrigerant tank 131 and a circulation pump 14, and a temperature that adjusts the temperature of the refrigerant supplied to the core pin 3.
- An air pump 19 connected to one end of the valve 132 for supplying air; a circulation pump 14; a temperature regulator 15; a flow regulator 16; an electrically controlled three-way valve 132; and a controller 17 for controlling the air pump 19. It is configured.
- the refrigerant pipe 13 is provided between the refrigerant inlet 36 and the refrigerant outlet 37 of the core pin 3, and a refrigerant tank 131 is provided in the middle. Then, the refrigerant stored in the refrigerant tank 131 is sucked by the circulation pump 14 and guided to the refrigerant inlet 36, passes through the spiral flow path 35 of the above-described casting pin 3, and then returns from the refrigerant outlet 37 to the refrigerant tank 131. It is. Water or the like can be used as the refrigerant of this embodiment.
- the refrigerant tank 131 is provided in order to perform the air purge of the refrigerant pipe 13, but the refrigerant tank 131 may be omitted when the air purge is not performed.
- the temperature controller 15 may be an air-cooled or water-cooled heat exchange type temperature controller, and adjusts the refrigerant to a desired temperature by a command signal from the controller 17.
- the temperature regulator 15 can be omitted when the refrigerant naturally cools, such as when the refrigerant pipe 13 is sufficiently long or when the casting cycle interval is sufficiently long.
- the flow controller 16 can use a flow control valve or the like, and adjusts the flow rate of the refrigerant by a command signal from the controller 17.
- the supply and stop of the refrigerant can be controlled by turning on / off the circulation pump 14, or can be controlled by setting the flow rate of the flow rate regulator 16 to zero (the flow rate adjustment valve is fully closed). it can. Therefore, the supply and stop of the refrigerant, that is, the supply time of the refrigerant can be controlled by the circulation pump 14 or the flow rate regulator 16.
- the electrically controlled three-way valve 132 switches the valve so that the coolant is supplied to the casting pin 3 during the casting process, while the casting is finished and the casting process is started after the next cycle is started.
- the valve is switched so that air is supplied from the air pump 19 to the refrigerant inlet 36 of the extraction pin 3. That is, during the casting process, the valve on the air pump 19 side is closed and the valve on the refrigerant pipe 13 side is opened, while the valve on the flow rate regulator 16 side of the refrigerant pipe 13 is closed during the purge, and the valve on the air pump 19 side is closed. Is operated by a command signal from the controller 17 so as to open.
- the purge of the present embodiment is executed at the end of each cycle in order to prevent foreign matter from accumulating in the spiral flow path 35 of the core pin 3, but may be executed every plural cycles,
- the purge itself may be omitted by installing a filter or the like for removing foreign substances in the pipe 13.
- the purge is performed using air, but the purge medium is not limited to air, and may be an appropriate cleaning liquid.
- the controller 17 is configured by a computer including a ROM, a RAM, a CPU, an HDD, and the like.
- the controller 17 receives an operation signal from the casting controller 18 of the casting apparatus 1 and controls supply of the refrigerant in synchronization with the operation of the casting apparatus 1.
- Execute In a storage unit such as an HDD, a control table acquired in advance by experiments or computer simulations is stored, and in accordance with the detected temperature of the casting pin 3 detected by the temperature detector 11, the casting is performed during the next casting cycle.
- a control signal is output to the cooling controller 12, specifically, the circulation pump 14, the temperature controller 15, the flow controller 16, the electrically controlled three-way valve 132 and the air pump 19. To do.
- FIG. 6 is a diagram illustrating an example of a control table stored in the HDD of the controller 17.
- the illustrated control table shows an example in which the supply time of the refrigerant is controlled.
- the temperature detected by the temperature detector 11 is + ⁇ 1 to + ⁇ 5 ° C., which is lower than the target value (reference temperature), on the high temperature side. when - ⁇ 1 ⁇ - ⁇ 5 °C fluctuation on the side, the supply time of the refrigerant, respectively, + ⁇ 1 ⁇ + ⁇ 5 seconds for supply time of the refrigerant in the previous cycle, adding - ⁇ 1 ⁇ - ⁇ 5 seconds Is shown.
- a control table for similarly controlling the refrigerant supply amount may be stored.
- a control table for similarly controlling the temperature of the refrigerant may be stored.
- the control of the amount of cooling energy applied to the core pin 3 during the next casting cycle according to the detected temperature of the core pin 3 detected by the temperature detector 11 performed by the controller 17 is based on the detected temperature.
- the circulation pump 14 or the flow rate regulator 16 is controlled such that the higher the temperature, the longer the refrigerant supply time and / or the refrigerant flow rate. Further, the circulation pump 14 or the flow rate regulator 16 is controlled so that the refrigerant supply time is shortened and / or the refrigerant flow rate is decreased as the detected temperature is lower than the reference temperature.
- the temperature regulator 15 is controlled such that the temperature of the refrigerant becomes lower as the detected temperature is higher than the reference temperature, and the detected temperature.
- the temperature controller 15 is controlled so that the temperature of the refrigerant becomes higher as the temperature becomes lower than the reference temperature.
- FIG. 5 is a time chart showing a casting method using the casting apparatus 1 of the present embodiment, and shows only two cycles of the Nth cycle and the (N + 1) th cycle. The preceding and following cycles are repeated and will be omitted.
- FIG. 5A shows each process of casting by the casting apparatus 1, and a molten metal such as an aluminum alloy is injected into the cavity 25 of the casting mold 2 clamped as shown in FIG. 3 from time t 0 to t 1 . Is done. At time t 1 increases the injection pressure and the filling of the molten metal into the cavity 25 is completed, pressurized with a predetermined pressure for a predetermined time t 1 ⁇ t 2.
- FIG. 5B is a time chart showing the flow rate Q of the refrigerant supplied to the spiral flow path 35 of the core pin 3
- FIG. 5C is supplied to the spiral flow path 35 of the core pin 3.
- FIG. 5D is a time chart showing a profile of the detected temperature Tm of the core pin 3 detected by the temperature detector 11.
- the controller 17 stops the circulation pump 14 or sets the flow rate of the flow rate regulator 16 to zero until a molten metal such as an aluminum alloy is injected at the time t 0 to t 1 of the Nth cycle. Then, supply of the refrigerant to the core pin 3 is stopped. Further, the electrically controlled three-way valve 132 is set so that the refrigerant is supplied to the refrigerant inlet 36 of the casting pin 3 and the air pump 19 is stopped.
- the controller 17 sets at the same time when receiving from a cast controller 18 to the filling of the molten metal into the cavity 25 is completed at time t 1, the flow rate of either flow controller 16 operates the circulating pump 14 to a predetermined value Thus, the supply of the refrigerant to the core pin 3 is started. Since the supply time and flow rate of the refrigerant and the temperature of the refrigerant at this time are set based on the detected temperature Tm of the core pin 3 detected in the previous cycle as described above, the controller 17 performs control according to the detected temperature Tm. The signal is output to the circulation pump 14, the temperature controller 15, and the flow rate controller 16. In the example shown in FIG. 5B, it is assumed that the supply time of the refrigerant is t 1 to t 2 which is the same as the time of the pressurization step.
- the controller determines that the supply time of the refrigerant has timed up (time t 2 )
- the controller again stops the circulation pump 14 or sets the flow rate of the flow rate regulator 16 to zero, thereby supplying the casting pin 3 to the casting pin 3. Stop supplying refrigerant.
- This time in the casting mold 2, exit pressure depressurized to time t 3.
- the temperature of the core pin 3 is measured by the temperature detector 11.
- the timing of temperature detection as core pin 3 described above is not limited to this time t 3, it may be a time t 4.
- the detected temperature is T m1 (> reference temperature T 0 ) as shown in FIG.
- the controller 17 compares the detected temperature detected by the temperature detector 11 with the reference temperature and calculates the difference. Then, with reference to the control table shown in FIG. 6, an addition value of the refrigerant supply time corresponding to the calculated temperature difference is obtained. During the time t 3 to t 4 while the casting mold 2 is opened and the cast product is released, the controller 17 outputs a control signal to the electrically controlled three-way valve 132 and the flow rate regulator of the refrigerant pipe 13 The 16 side valve is closed and the air pump 19 side valve is opened. Further, a control signal is output from the controller 17 to the air pump 19 to operate the air pump 19.
- the controller 17 outputs a control signal to the electrically controlled three-way valve 132, opens the valve on the flow rate regulator 16 side of the refrigerant pipe 13, and closes the valve on the air pump 19 side.
- a control signal is output from the controller 17 to the air pump 19 to stop the air pump 19.
- the controller 17 activates the circulation pump 14 or the flow regulator at the same time as receiving from the casting controller 18 that the filling of the molten metal into the cavity 25 is completed at time t 1 .
- the supply of the refrigerant to the core pin 3 is started by setting the flow rate of 16 to a predetermined value.
- the temperature of the feed time and flow, as well as refrigerant in the refrigerant at this time, because it is set based on the temperature T m1 of the front of the N pins punching cast is detected at time t 3 of the cycle 3, the controller 17 it A corresponding control signal is output to the circulation pump 14, the temperature regulator 15, and the flow rate regulator 16.
- the correction range of the refrigerant supply time is indicated by a one-dot chain line, and the correction range of the refrigerant flow rate is indicated by a dotted line.
- the correction range of the refrigerant temperature in FIG. As described above, since the detected temperature T m1 detected in the Nth cycle is higher than the reference value T 0 , the refrigerant supply time in the (N + 1) th cycle is relatively short, and the refrigerant flow rate is relatively large. The temperature of the refrigerant is set to a relatively low temperature. Note that the supply time and flow rate of these refrigerants and the temperature of the refrigerant may be controlled either alone or in combination of at least two.
- the right figure of FIG. 8 is a histogram showing the temperature (vertical axis) of the core pin 3 when the cooling energy applied to the core pin 3 is controlled by the above-described procedure using the casting apparatus 1 of the present embodiment.
- the left figure of FIG. 8 is a histogram showing the temperature of the core pin when the cooling energy applied to the core pin 3 is not controlled by the above-described procedure using the same casting apparatus 1.
- n represents the number of samples
- X bar represents an average value
- s represents a standard deviation.
- the casting apparatus and the casting method of the present embodiment in the next cycle according to the temperature detected at the end t 2 to t 4 of the casting cycle in which the temperature of the core pin 3 is relatively stable. Since the cooling energy applied to the core pin 3 is controlled, it is possible to suppress the temperature of the core pin 3 during casting from being varied for each cycle.
- the responsiveness and accuracy are relatively higher than the refrigerant temperature, and the casting during casting is further performed. It is possible to suppress the temperature of the pin 3 from varying every cycle.
- the correction amount is large, and it is particularly effective when it cannot be controlled only by the supply time and flow rate of the refrigerant.
- the refrigerant filled in the spiral channel 35 of the core pin 3 is purged. It is possible to prevent the passage 35 from being clogged with foreign matter and inhibiting the circulation of the refrigerant. In particular, since the purge of the refrigerant is performed in parallel with the mold release step of casting, the manufacturing time is not prolonged.
- the core pin 3 is composed of the outer cylinder 31 and the inner cylinder 32, and the spiral groove 33 is formed on the outer surface of the inner cylinder 32, not the outer cylinder 31 in particular. Therefore, the workability of precise machining is improved, and the core pin 3 can be produced at a low cost.
- the outer cylinder 31 can be moved both in the forward and backward paths of the refrigerant. Since cooling energy can be provided, cooling efficiency becomes high.
- the axial pitch of the spiral groove 33 formed on the outer surface of the inner cylinder 32 of the core pin 3 is made smaller than the pitch on the base end side.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
11…温度検出器
12…冷却制御器
13…冷媒配管(循環系統)
131…冷媒タンク(循環系統)
132…三方弁
14…循環ポンプ(循環系統)
15…温度調節器
16…流量調節器
17…制御器
18…鋳造制御器
19…エアポンプ
2…鋳造型
21…固定型
22…可動型
23…上型
24…下型
25…キャビティ
3…鋳抜きピン
31…外筒
32…内筒
33…螺旋溝
34…貫通孔
35…螺旋状流路
36…冷媒入口
37…冷媒出口
38…空間
39…二重螺旋溝
4…ライナレスシリンダブロック
41…シリンダボア
Claims (12)
- 鋳造型に鋳抜きピンを配置した状態で、前記鋳造型の内部に形成されるキャビティに溶湯を供給して鋳造を行う鋳造装置において、
一の鋳造サイクルの終期の所定時間における前記鋳抜きピンの温度を検出する温度検出器と、
前記鋳抜きピンに冷却エネルギを付与するとともに、前記温度検出器により検出された検出温度に応じて、次の鋳造サイクル中に前記鋳抜きピンに付与する冷却エネルギ量を制御する冷却制御器と、を備える鋳造装置。 - 前記冷却制御器は、
前記鋳抜きピンの表面近傍に冷媒を循環する循環系統と、
前記鋳抜きピンに供給される冷媒の流量及び供給時間を調節する流量調節器と、
前記検出温度に応じて、前記流量調節器を制御して前記冷媒の流量又は供給時間を制御する制御器と、を含む請求項1に記載の鋳造装置。 - 前記制御器は、
前記検出温度が基準温度より高いほど、前記冷媒の供給時間が長くなるか及び/又は前記冷媒の流量が多くなるように、及び、
前記検出温度が基準温度より低いほど、前記冷媒の供給時間が短くなるか及び/又は前記冷媒の流量が少なくなるように、
前記流量調節器を制御する請求項2に記載の鋳造装置。 - 前記冷却制御器は、前記鋳抜きピンに供給される冷媒の温度を調節する温度調節器をさらに含み、
前記制御器は、前記検出温度に応じて前記温度調節器を制御し、前記鋳造サイクル中に前記鋳抜きピンに付与する冷却エネルギ量を制御する請求項2又は3に記載の鋳造装置。 - 前記冷却制御器は、前記一の鋳造を終了してから次の鋳造サイクルが開始されるまでの間に、前記循環系統に充填されている冷媒をパージする請求項2~4のいずれか一項に記載の鋳造装置。
- 前記鋳抜きピンは、
有底筒状に形成され、外面が前記鋳抜きピンの外面を構成する外筒と、
外面に螺旋溝が形成されるとともに、内部を軸方向に貫通する貫通孔が形成された中実状の内筒と、を有し、
前記内筒が前記外筒に挿入されることにより、前記外筒の内面と前記内筒の螺旋溝との間に冷媒が流れる螺旋状流路が形成されるとともに、当該螺旋状流路の一端と前記貫通孔の一端とが連通され、
前記貫通孔の他端が、前記冷媒の入口又は出口の一方とされ、前記螺旋状流路の他端が、前記冷媒の入口又は出口の他方とされている請求項1~5のいずれか一項に記載の鋳造装置。 - 前記鋳抜きピンは、
有底筒状に形成され、外面が前記鋳抜きピンの外面を構成する外筒と、
先端で連結する二重螺旋溝が外面に形成された、中実状の内筒と、を有し、
前記内筒が前記外筒に挿入されることにより、前記外筒の内面と前記内筒の二重螺旋溝との間に冷媒が流れる螺旋状流路が形成され、
前記螺旋状流路の一端が、前記冷媒の入口又は出口の一方とされ、前記螺旋状流路の他端が、前記冷媒の入口又は出口の他方とされている請求項1~5のいずれか一項に記載の鋳造装置。 - 前記鋳抜きピンの先端側ほど、前記螺旋状流路の軸方向の間隔が狭く又は前記螺旋状流路の断面積が大きく設定されている請求項6又は7に記載の鋳造装置。
- 鋳造型に鋳抜きピンを配置した状態で、前記鋳造型の内部に形成されるキャビティに溶湯を供給して鋳造を行う鋳造方法において、
一の鋳造サイクルの終期の所定時間における前記鋳抜きピンの温度を検出する工程と、
前記鋳抜きピンに冷却エネルギを付与するとともに、前記鋳抜きピンの温度を検出する工程で検出された検出温度に応じて、次の鋳造サイクル中に前記鋳抜きピンに付与する冷却エネルギ量を制御する工程と、を含む鋳造方法。 - 前記冷却エネルギ量を制御する工程は、
前記検出温度が基準温度より高いほど、前記鋳抜きピンに供給される冷媒の供給時間が長くなるか及び/又は前記冷媒の流量が多くなるように、及び、
前記検出温度が基準温度より低いほど、前記冷媒の供給時間が短くなるか及び/又は前記冷媒の流量が少なくなるように、
制御する請求項9に記載の鋳造方法。 - 前記冷却エネルギ量を制御する工程は、前記鋳抜きピンに供給される冷媒の温度を調節する工程を含み、
前記検出温度に応じて、前記鋳造サイクル中に前記鋳抜きピンに供給される冷媒の温度を調節する請求項9又は10に記載の鋳造方法。 - 前記一の鋳造を終了してから次の鋳造サイクルが開始されるまでの間に、前記鋳抜きピンに供給される冷媒をパージする工程をさらに含む請求項9~11のいずれか一項に記載の鋳造方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2017016224A MX364566B (es) | 2015-06-25 | 2015-06-25 | Dispositivo de fundicion y metodo de fundicion. |
US15/579,675 US10391548B2 (en) | 2015-06-25 | 2015-06-25 | Casting device and casting method |
PCT/JP2015/068309 WO2016208027A1 (ja) | 2015-06-25 | 2015-06-25 | 鋳造装置及び鋳造方法 |
JP2017524517A JP6512290B2 (ja) | 2015-06-25 | 2015-06-25 | 鋳造装置及び鋳造方法 |
KR1020187000234A KR101859354B1 (ko) | 2015-06-25 | 2015-06-25 | 주조 장치 및 주조 방법 |
CN201580081221.9A CN107735194B (zh) | 2015-06-25 | 2015-06-25 | 铸造装置和铸造方法 |
EP15896349.6A EP3315226B1 (en) | 2015-06-25 | 2015-06-25 | Casting device and casting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2015/068309 WO2016208027A1 (ja) | 2015-06-25 | 2015-06-25 | 鋳造装置及び鋳造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016208027A1 true WO2016208027A1 (ja) | 2016-12-29 |
Family
ID=57586353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/068309 WO2016208027A1 (ja) | 2015-06-25 | 2015-06-25 | 鋳造装置及び鋳造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US10391548B2 (ja) |
EP (1) | EP3315226B1 (ja) |
JP (1) | JP6512290B2 (ja) |
KR (1) | KR101859354B1 (ja) |
CN (1) | CN107735194B (ja) |
MX (1) | MX364566B (ja) |
WO (1) | WO2016208027A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3083464B1 (fr) * | 2018-07-03 | 2022-06-24 | Lethiguel | Procede et dispositif pour le controle de la temperature locale d'une piece lors de sa fabrication par moulage |
KR102222896B1 (ko) * | 2019-08-02 | 2021-03-03 | 권상철 | 연속 주조용 냉각튜브 어셈블리 및 이를 포함하는 연속 주조용 냉각 장치 |
CN113714482A (zh) * | 2021-08-25 | 2021-11-30 | 南通大学 | 一种具有曲面外形的铝合金压力铸造模具型芯及冷却方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH091313A (ja) * | 1995-06-15 | 1997-01-07 | Aichi Mach Ind Co Ltd | アルミ合金鋳造における鋳抜きピンおよびその温度制御方法 |
JP2005118864A (ja) * | 2003-10-20 | 2005-05-12 | Nissan Motor Co Ltd | 鋳造装置 |
JP2010064129A (ja) * | 2008-09-12 | 2010-03-25 | Nissan Motor Co Ltd | シリンダブロックの製造方法及び製造装置 |
JP2010155254A (ja) * | 2008-12-26 | 2010-07-15 | Nissan Motor Co Ltd | 鋳造装置及び鋳造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2643072C2 (de) * | 1976-09-24 | 1982-06-03 | Siemens AG, 1000 Berlin und 8000 München | Kühldose für Thyristoren |
EP0158898B1 (de) * | 1984-04-13 | 1990-06-06 | Hans Horst | Stranggiessvorrichtung und Verfahren zu deren Herstellung |
US5421397A (en) * | 1993-01-19 | 1995-06-06 | Hembree; Robert K. | Method of and system for casting engine blocks having defect free thin walls |
JP4028112B2 (ja) * | 1998-12-08 | 2007-12-26 | 本田技研工業株式会社 | 金型冷却方法および装置 |
US6435258B1 (en) * | 2000-04-26 | 2002-08-20 | Honda Giken Kogyo Kabushiki Kaisha | Method and apparatus for cooling mold |
JP3981832B2 (ja) * | 2003-06-25 | 2007-09-26 | トヨタ自動車株式会社 | シリンダブロックの鋳造方法 |
JP3963175B2 (ja) | 2004-03-19 | 2007-08-22 | 日産自動車株式会社 | 温度検出装置および温度検出用プログラム |
JP4286197B2 (ja) * | 2004-08-31 | 2009-06-24 | 愛知機械工業株式会社 | 冷却装置およびこれを備える内燃機関 |
JP4877057B2 (ja) * | 2007-05-07 | 2012-02-15 | 日産自動車株式会社 | 内燃機関の冷却系装置 |
JP5937377B2 (ja) * | 2012-02-22 | 2016-06-22 | 本田技研工業株式会社 | シリンダブロック鋳造装置 |
CN104203633B (zh) * | 2012-03-19 | 2017-03-29 | 日产自动车株式会社 | 电池温度调节装置 |
-
2015
- 2015-06-25 US US15/579,675 patent/US10391548B2/en active Active
- 2015-06-25 JP JP2017524517A patent/JP6512290B2/ja active Active
- 2015-06-25 CN CN201580081221.9A patent/CN107735194B/zh active Active
- 2015-06-25 MX MX2017016224A patent/MX364566B/es active IP Right Grant
- 2015-06-25 WO PCT/JP2015/068309 patent/WO2016208027A1/ja active Application Filing
- 2015-06-25 EP EP15896349.6A patent/EP3315226B1/en active Active
- 2015-06-25 KR KR1020187000234A patent/KR101859354B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH091313A (ja) * | 1995-06-15 | 1997-01-07 | Aichi Mach Ind Co Ltd | アルミ合金鋳造における鋳抜きピンおよびその温度制御方法 |
JP2005118864A (ja) * | 2003-10-20 | 2005-05-12 | Nissan Motor Co Ltd | 鋳造装置 |
JP2010064129A (ja) * | 2008-09-12 | 2010-03-25 | Nissan Motor Co Ltd | シリンダブロックの製造方法及び製造装置 |
JP2010155254A (ja) * | 2008-12-26 | 2010-07-15 | Nissan Motor Co Ltd | 鋳造装置及び鋳造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP6512290B2 (ja) | 2019-05-15 |
JPWO2016208027A1 (ja) | 2018-04-12 |
EP3315226A1 (en) | 2018-05-02 |
EP3315226A4 (en) | 2018-06-06 |
KR101859354B1 (ko) | 2018-05-18 |
EP3315226B1 (en) | 2020-03-18 |
CN107735194A (zh) | 2018-02-23 |
CN107735194B (zh) | 2020-10-20 |
US20180141110A1 (en) | 2018-05-24 |
MX364566B (es) | 2019-05-02 |
US10391548B2 (en) | 2019-08-27 |
KR20180005746A (ko) | 2018-01-16 |
MX2017016224A (es) | 2018-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100520561B1 (ko) | 다이케스팅 금형용 냉각장치 | |
EP1919686B1 (en) | Injection molding apparatus having separation type mold and controlling method thereof | |
CN100400202C (zh) | 铸造机 | |
WO2016208027A1 (ja) | 鋳造装置及び鋳造方法 | |
JP5136169B2 (ja) | 半溶融金属成形用金型 | |
JP2009255118A (ja) | 粗材冷却装置および方法 | |
KR101743944B1 (ko) | 금형 냉각 장치 | |
JP2009136902A (ja) | 車両用ホイールの加圧鋳造方法および装置並びに車両用ホイール素材 | |
JP2011240392A (ja) | 鋳造装置、金型構造体及び鋳造方法 | |
JP3462377B2 (ja) | ダイカスト鋳造方法及びダイカスト鋳造装置 | |
JP4508150B2 (ja) | 鋳造用金型及びその冷却方法 | |
JP5292352B2 (ja) | 射出装置及びダイカストマシン | |
JP2005271429A (ja) | 成形金型装置および成形方法 | |
JP2016203197A (ja) | 加圧ピン制御方法及び加圧ピン制御装置 | |
JP2019111551A (ja) | ダイカスト金型の冷却構造 | |
JP6348003B2 (ja) | 金型冷却方法及び金型冷却システム | |
JP6733456B2 (ja) | 加圧鋳造方法 | |
JPH06304732A (ja) | 射出スリーブの温度制御方法 | |
JP2009202196A (ja) | 金型冷却機構 | |
JP2020089895A (ja) | 鋳造方法及び鋳造システム | |
JPH1147883A (ja) | 金型温度制御装置 | |
JPH06304735A (ja) | 型温度上昇方法及び製品製造方法 | |
JPH01148451A (ja) | 低圧鋳造法における溶湯の加圧冷却制御方法 | |
JP2011156550A (ja) | ダイカストマシンおよびダイカスト鋳造方法 | |
JP2003164957A (ja) | 鋳造用金型の冷却方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15896349 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15579675 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2017/016224 Country of ref document: MX |
|
ENP | Entry into the national phase |
Ref document number: 2017524517 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20187000234 Country of ref document: KR Kind code of ref document: A |