WO2006134841A1 - 発泡性混合物の管理方法 - Google Patents
発泡性混合物の管理方法 Download PDFInfo
- Publication number
- WO2006134841A1 WO2006134841A1 PCT/JP2006/311620 JP2006311620W WO2006134841A1 WO 2006134841 A1 WO2006134841 A1 WO 2006134841A1 JP 2006311620 W JP2006311620 W JP 2006311620W WO 2006134841 A1 WO2006134841 A1 WO 2006134841A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- foamable mixture
- mixture
- viscosity
- measured
- moisture
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/14—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
- B22C19/04—Controlling devices specially designed for moulding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
Definitions
- the present invention relates to a method for managing a foamable mixture. More specifically, a foamable mixture obtained by mixing and stirring particulate aggregate, a water-soluble binder, and water is filled into a heated mold cavity by a press-fitting method, for example, a saddle type, such as a main mold or a medium mold.
- the present invention relates to a method for managing a foamable mixture for producing the foamable mixture in a predetermined normal state when molding a child or the like.
- a vertical molding apparatus for molding this type of vertical mold for example, a cylinder extending in the vertical direction, a plunger disposed in the cylinder to be movable up and down, and a lower end opening of the cylinder are opened and closed.
- a gate is provided so that it can be moved up and down to constitute a means for press-fitting fluid sand into a mold, and an opening is provided in the middle of the cylinder, and a mixer for obtaining fluid sand is connected to this opening (See JP-A-55-54241).
- a gate is also provided in the middle stage of the cylinder, or the level of the cylinder, the lower gate, or the plunger is changed, so that the cylinder is pressed into the mold. It is possible to change the amount of fluid sand that is introduced.
- the foamable mixture which is a vertical material using a water-soluble binder as a binder, deteriorates the fluidity of the mixture when the water content is too low.
- the present invention is a state of the foamable mixture before being press-fitted into the mold. It is an object of the present invention to provide a method for managing an effervescent mixture capable of producing a uniform mold strength by monitoring and managing the above and stabilizing the filling property at the time of molding.
- the method for managing a foamable mixture of the present invention is a method in which a foamable mixture obtained by mixing and stirring particulate aggregate, a water-soluble binder and water is pressed into a heated mold cavity.
- a foaming mixture management method for managing the foamable mixture in a predetermined normal state when filling and forming a mold comprising: (a) measuring the temperature of the foamable mixture; b) determining the reference value of the characteristic factor indicating the property characteristics of the foamable mixture based on the measured temperature; A step of measuring a state of a characteristic factor indicating a mixing state of the foamable mixture, and (d) a step of determining whether the measured state value is within the range of the reference value, and (e) the determination.
- the foamable mixture is in a normal state or the foamable mixture It is characterized in that it comprises a step of determining whether to adjust the compound.
- the method for managing the foamable mixture of the present invention includes a method in which a foamable mixture obtained by mixing and stirring particulate aggregate, a water-soluble binder, and water is pressed into a heated mold cavity.
- a foaming mixture management method for managing the foamable mixture to a predetermined normal state when filling and forming a mold comprising: (a) measuring the temperature of the foamable mixture; b) determining a reference value of moisture and viscosity indicating the property characteristics of the foamable mixture based on the measured temperature from the relationship between the property characteristics of the foamable mixture obtained in advance; (c) measuring the moisture indicating the mixing state of the foamable mixture; (d) determining whether the measured moisture is within the range of the moisture reference value; When the measured moisture is within the range of the moisture reference value, the foamability A step of measuring a viscosity indicating a mixed state of the compound, (f) a step of determining whether the measured viscosity is within a range of the viscosity reference value,
- the mold strength can be uniformly produced by stabilizing the filling property at the time of molding.
- a vertical molding apparatus used in the present invention has two upward cylinders 2 and 2 installed on a surface plate-like machine base 1, and the machine base Four guide rods 3 and 3 are erected at the four corners of 1, respectively.
- an elevating frame 4 mounted on the four guide rods 3 and 3 so as to be slidable and elevable is installed on the lower surface.
- the lower mold 6 of the horizontal split mold 5 is attached to the upper surface of the plate.
- the upper mold 7 of the horizontal split mold 5 is supported directly above the lower mold 6 by four support mechanisms 8 and 8 mounted on the guide rod 3 above the lower mold 6. Arranged.
- a ceiling frame 9 extending in the left-right direction is installed between the upper ends of the four guide rods 3 and 3, and a function as a stirring tank is provided at a right position in the lower part of the ceiling frame 9.
- a mixture storage means 10 having a function as a press-fitting cylinder is arranged so as to be movable to the left side through the first traveling carriage 11, and the mixture storage means 10 forms a rectangular parallelepiped and penetrates vertically.
- a hollow rectangular parallelepiped 12 having a hollow, and a bottom plate 14 which is fixed to the lower end of the hollow rectangular parallelepiped 12 to close the lower end opening of the hollow rectangular parallelepiped 12 and through which a plurality of injection holes 13, 13 are injected.
- the bottom plate 14 has a water-cooled structure at the top and a heat insulating material at the bottom.
- the particulate aggregate put into the mixture storage means 10 a water-soluble binder that is soluble at room temperature, and water are mixed and stirred for foaming.
- a blade mechanism 15 is installed.
- the particulate aggregate can be, for example, cinnabar.
- the water-soluble binder as the binder for the particulate aggregate can be polyvinyl alcohol.
- the stirring blade 16 is connected to the output shaft of the motor 17 via the transmission mechanism 18, and the motor 17 is a contraction of the downward cylinder 19 mounted on the ceiling frame 9.
- the support member 20 is lifted and lowered by the extension operation, and the support member 20 is further provided with a cover 21 for closing the upper end opening of the mixture storage means 10. The cover 21 is moved up and down by the contraction operation of the cylinder 19.
- the mixing Plug means 22 for closing the injection holes 13, 13 of the compound storage means 10 is provided in the plug means 22, a plurality of plugs 23, 23 that can enter and exit the injection holes 13, 13 are support plates 24. It is attached to the upper end of the piston rod of the upward cylinder 25 via the plug, and the plugs 23 and 23 are moved up and down by the expansion and contraction operation of the cylinder 25. The cylinder 25 is interposed via the support members 26 and 26. And mounted on the ceiling frame 9. The injection holes 13 and 13 can also be cleaned by inserting a plurality of the plugs 23 and 23 into the injection holes 13 and 13.
- a vertical extrusion mechanism 31 that extrudes the vertical mold from the upper mold 7 is disposed at the left position in the lower part of the ceiling frame 9 so as to be movable to the right side via the second traveling carriage 32.
- a plurality of vertical extrusion pins 33, 33 are attached to the lower end of the piston rod of the downward cylinder 35 via the extrusion plate 34, and the vertical extrusion pin 33 33 are moved up and down by the expansion and contraction operation of the cylinder 35.
- the foamable mixture in view of the importance of managing the foamable mixture in order to produce a mold having a predetermined quality, the foamable mixture is heated using the mold forming apparatus.
- the mold forming apparatus When forming the vertical mold by filling the mold cavity with the press-fitting method, the state of the foamable mixture before press-fitting into the mold is monitored and managed.
- the property properties of the foamable mixture obtained beforehand (influence on the moisture, viscosity, sand type and particle size, binder type and amount) Based on the measured temperature, the standard value of the characteristic factor indicating the property characteristic of the foamable mixture is determined.
- the characteristic factor can be, for example, moisture or viscosity.
- the measured state value (the value of moisture or viscosity) is within the range of the reference value (for example, the reference value Determine whether the force is within the upper limit, the value and the lower limit, the value.
- the foamable mixture is in a normal state or the foamable mixture is adjusted. If it is determined by forceful judgment that the foamable mixture is in a normal state, that is, the measured state value is within the range of the reference value, the foamable mixture is pressed into a heated mold cavity by a press-fitting method. Fill to make a bowl. On the other hand, when the foamable mixture is adjusted, that is, when it is determined that the measured state value is not within the range of the reference value, the viscosity and Z or moisture components are adjusted and then the state of the foamable mixture is monitored again. To continue.
- step Sl the temperature T of the foamable mixture is measured by temperature measuring means (step Sl).
- the foamable mixture is stirred and foamed by mixing the particulate aggregate, water-soluble binder and water charged in the mixture storage means by a stirring blade mechanism.
- the particulate aggregate for example, dredged sand, alumina sand, olivine sand, chromite sand, zircon sand, clay sand or various artificial aggregates can be used.
- the water-soluble binder as a binder of particulate aggregate, poly Bulle alcohols, such as poly Bulle alcohols or derivatives thereof up to 95 mol 0/0 also saponification degree 80 mol 0/0 force, and / Or pregelatinized starch, dextrin or derivative thereof, saponin, saccharide, etc.
- the water-soluble binder contains, for example, 0.3 wt% to 10 wt% by weight with respect to the particulate aggregate.
- the water is water other than alkaline water. Water is, for example, 2 to 10% with respect to the particulate aggregate and the water-soluble binder.
- the temperature measuring means is not particularly limited, but a contact type or non-contact type temperature measuring means, for example, a thermocouple type temperature sensor or the like is used as a contact type temperature detector.
- a temperature sensor using a laser, infrared (thermograph), or ultrasonic wave can be used as a non-contact type temperature detector.
- step S2 (b) In the present embodiment, which shows the property characteristics of the foamable mixture based on the temperature measured in advance from the relationship between the property characteristics of the foamable mixture obtained in (b). Determine the reference values Ws and Vs of moisture and viscosity that affect the quality of molding (step S2).
- the degree of moisture, viscosity, etc., the fluidity and bubble ratio of the mixture change.
- the filling quality during molding and the vertical molding quality such as vertical molding strength are improved. Because of the difference, correlations such as temperature, moisture, and viscosity have been experimentally obtained in advance as the relationship of the property characteristics of the foamable mixture.
- step S3 the moisture V indicating the mixing state of the foamable mixture is measured by moisture measuring means.
- the moisture measurement means is not particularly limited! /, however, for example, a moisture detector using an electrical resistance measurement method or a microwave measurement method, or a foamable mixture obtained by sampling one part By heating at this location, it is possible to use a heating loss measuring instrument that evaporates the moisture and measures the moisture from the weight loss.
- step S4 it is determined whether or not the measured moisture W is within the range of the moisture reference value Ws (step S4).
- the water content W of the foamable mixture is within the range between the upper limit threshold value Wsuth and the lower limit value Wsdth which are within the range of the reference value Ws of the water content.
- the upper threshold value, the value Wsut h, and the lower threshold value Wsdth can be set in advance by experiments.
- step S 5 When the measured moisture W is in the range of the moisture reference value Ws, the viscosity W indicating the mixing state of the foamable mixture is measured by a viscosity measuring means (step S 5 ).
- the viscosity measuring means is not particularly limited! /, However, a viscosity measuring means using a probe press-fitting method, a probe rotation method, a probe press-fitting and rotation method, or an apparent viscosity measurement method is used. Can do.
- a probe press-fitting method a spherical or cylindrical part (which may be an integral force separate body) is provided at the tip of a rod-shaped probe, and the tip of the probe is made of a foamable mixture.
- a viscosity detector that relatively measures the viscosity of the foamable mixture by measuring the load (resistance force) during press-fitting into the inside can be obtained.
- a spherical or cylindrical part (this part may be an integral force separate body) is attached to the tip of the rod-shaped probe.
- a viscosity detector that rotates the tip of the probe while being pressed into the foamable mixture, measures the load (resistance force Z torque) generated in the probe, and relatively measures the viscosity of the foamable mixture; can do.
- a disc-shaped or fan-shaped part (this part is not necessarily an integral force separate body) is provided at the tip of the rod-shaped probe, and the tip of the probe After being pressed into the foamable mixture, it can be rotated to measure the load (torque) generated in the probe, thereby providing a viscosity detector that relatively measures the viscosity of the foamable mixture.
- the foamable mixture is placed in a cylindrical body having an opening with a constant diameter, and a constant pressure is applied to the foamable mixture, so that the foamable mixture is removed from the opening.
- a viscosity detector that relatively measures the apparent viscosity according to the flow rate can be obtained.
- viscosity measurement means are non-Newtonian fluids, so it is recommended to use probe press-fitting, rotary, or press-and-rotation type viscosity detectors (viscosity measurement means).
- probe press-fitting, rotary, or press-and-rotation type viscosity detectors (viscosity measurement means).
- the viscosity of the foamable mixture is within a range between the upper limit threshold and the lower limit threshold of the reference value that is the range of the reference value of the viscosity.
- step S7 When the measured viscosity V is within the range of the viscosity reference value Vs, it is determined that the foamable mixture is in a normal state (step S7), and molding is started. .
- step S4 if the measured moisture W is not within the range of the moisture reference value Ws (threshold values Wsdth, Wsuth), the insufficient amount of water is removed. After replenishing (adding), the foamable mixture is stirred again and kneaded (kneaded) (step S8).
- step S6 when the measured viscosity V is not within the range of the viscosity reference value Vs (threshold values Vsdth, Vsuth), a predetermined viscosity is obtained. Thus, the foamable mixture is stirred again and kneaded (kneaded) (step S9).
- the temperature, viscosity and moisture of the foamable mixture are measured by installing the temperature sensor, the viscosity detector and the moisture detector inside or outside the mixture storage means. ,measure.
- the temperature and the like are measured by collecting the foamable mixture from the mixture storage means by a batch method, or mounting the measurement means on the mixture storage means. Can be carried out continuously.
- the viscosity and the quantity of moisture vary depending on the type of the particulate aggregate and the type of the water-soluble binder, so it is difficult to specify the optimum range.
- the reference value of viscosity is 0.5 to 5 Pa's
- the reference value of moisture is 2 to: LOwt%.
- silica sand is used as the particulate aggregate, polybutal alcohol (JP—05 made by Nippon Vinegar's Poval), starch (dextrin NSD—made by L-Sushi), and citrate as the water-soluble binder. (Manufactured by Fuso-i Gakugaku) was used.
- the water content was 2.5 to 7 wt%. Molding was performed after confirming that these values were well within the standard value range (viscosity threshold 1.5 and moisture threshold 2.5). Thus, it was found that the filling property at the time of molding can be stabilized by the management method in this example.
- the mixture storage means 10 is filled with, for example, silica sand as a particulate aggregate or a water-soluble binder. Of polyvinyl alcohol and water. Then, the upper end opening of the mixture storage means 10 is closed with the cover 21.
- the cylinder 19 of the stirring blade mechanism 15 is contracted to raise the stirring blade 16 and the cover 21. Then, according to the procedure described above, after confirming that the properties of the foamable mixture are managed in the normal state by the temperature sensor D1, the viscosity detector D2 and the moisture detector D3 provided in the mixture storage means 10, the stopper is plugged.
- the cylinder 25 of the means 22 is contracted, the plugs 23 and 23 are extracted from the injection holes 13 and 13 and the injection holes 13 and 13 are opened.
- the vertical extrusion mechanism 31 is moved to the left side via the second traveling carriage 32 and the mixture storage means 10 is moved to the left side via the first traveling carriage 11, respectively, so that the mixture storage means 10 is heated horizontally.
- the cylinders 2 and 2 are extended and the lower mold 6 is lifted through the raising / lowering frame 4 to move the upper mold 7 on the lower mold 6 and the upper mold. 7. Place the mixture storage means 10 on the 7 in order, and contact the lower surface of the mixture storage means 10 with the upper surface of the upper mold 7.
- the cylinder 30 of the pressing mechanism 27 is extended to lower the piston 29, and the air between the piston 29 and the mixture is exhausted through the exhaust hole 28 while the piston 29 is being lowered.
- the upper end openings of the exhaust holes 28, 28 are closed by valve means (not shown), the mixture in the mixture storage means 10 is pressed, and the mixture is pressed into the cavity of the horizontal mold 5. Fill. Note that the mixture filled in the horizontal split mold 5 evaporates and solidifies due to the heat of the horizontal split mold 5.
- the cylinder 30 is contracted to raise the piston 29, and then the vertical extrusion mechanism 31 is moved through the second traveling carriage 32 and the mixture storage means 10 Are respectively moved to the right side through the first traveling carriage 11, and the vertical extrusion mechanism 31 is returned directly above the horizontal split mold 5 and the mixture storage means 10 is returned directly below the stirring blade mechanism 15.
- the cylinder 35 of the vertical extrusion mechanism 31 is extended to insert the vertical extrusion pins 33 and 33 into the upper mold 7, and the cylinders 2 and 2 are contracted to lower the lower mold 6. Then, the vertical mold is separated from the upper mold 7, and then the vertical mold 6 is pushed up by the vertical mold extruding mechanism (not shown). On the other hand, the required amount of dredged sand, polyvinyl alcohol and water is added to the mixture storage means 10 returned to just below the stirring blade mechanism 15 for the next dredging molding.
- the mixture in the mixture storage means 10 is removed from the pin of the pressing mechanism 27.
- This is not limited to this, but the same effect can be obtained by the press-fitting method that presses in with compressed air as shown in Fig. 4.
- the compressed air may be supplied to the upper surface of the mixture in the mixture storage means 10 when the mixture is pressed into the horizontal split mold 5.
- the stirring mechanism and the mechanism for press-fitting compressed air may be integrated.
- FIG. 1 is a partially cutaway front view of a forging apparatus according to the present invention.
- FIG. 2 is a diagram for explaining the operation of the forging apparatus shown in FIG.
- FIG. 3 is a flowchart according to one embodiment of the present invention.
- FIG. 4 is a partially cutaway front view of another forging apparatus according to the present invention.
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- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020087000953A KR101051494B1 (ko) | 2005-06-15 | 2006-06-09 | 발포성 혼합물의 관리방법 |
AU2006258744A AU2006258744A1 (en) | 2005-06-15 | 2006-06-09 | Method of controlling foaming mixture |
US11/921,956 US7766543B2 (en) | 2005-06-15 | 2006-06-09 | Method for controlling an expandable mixture |
JP2007521265A JP4238932B2 (ja) | 2005-06-15 | 2006-06-09 | 発泡性混合物の管理方法 |
EP06766532A EP1897633B1 (en) | 2005-06-15 | 2006-06-09 | Method of controlling foaming mixture |
CN2006800295783A CN101242919B (zh) | 2005-06-15 | 2006-06-09 | 发泡性混合物的控制方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005174520 | 2005-06-15 | ||
JP2005-174520 | 2005-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006134841A1 true WO2006134841A1 (ja) | 2006-12-21 |
Family
ID=37532204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/311620 WO2006134841A1 (ja) | 2005-06-15 | 2006-06-09 | 発泡性混合物の管理方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7766543B2 (ja) |
EP (1) | EP1897633B1 (ja) |
JP (1) | JP4238932B2 (ja) |
KR (1) | KR101051494B1 (ja) |
CN (1) | CN101242919B (ja) |
AU (1) | AU2006258744A1 (ja) |
WO (1) | WO2006134841A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014002578A1 (ja) * | 2012-06-25 | 2014-01-03 | 新東工業株式会社 | 発泡混練物の造型装置及び発泡混練物の造型方法 |
WO2018211785A1 (ja) * | 2017-05-19 | 2018-11-22 | 新東工業株式会社 | 鋳型造型装置及び鋳型造型方法 |
JP2021146376A (ja) * | 2020-03-19 | 2021-09-27 | 新東工業株式会社 | 鋳型造型方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5958966B2 (ja) * | 2013-03-25 | 2016-08-02 | トヨタ自動車株式会社 | 造型装置および造型方法 |
JP6558858B2 (ja) * | 2016-04-08 | 2019-08-14 | 新東工業株式会社 | 混練機構、造型装置及び発泡混合物の製造方法 |
JP6470243B2 (ja) * | 2016-10-31 | 2019-02-13 | トヨタ自動車株式会社 | 中子造形装置及び中子造形方法 |
CN107186947A (zh) * | 2017-05-26 | 2017-09-22 | 太仓巨洲塑料科技有限公司 | 一种高精准性智能化可调式板机及其工作方法 |
CN107088985A (zh) * | 2017-05-26 | 2017-08-25 | 太仓巨洲塑料科技有限公司 | 一种高精度智能化可移动式发泡成型设备及其工作方法 |
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2006
- 2006-06-09 US US11/921,956 patent/US7766543B2/en active Active
- 2006-06-09 CN CN2006800295783A patent/CN101242919B/zh active Active
- 2006-06-09 KR KR1020087000953A patent/KR101051494B1/ko active IP Right Grant
- 2006-06-09 WO PCT/JP2006/311620 patent/WO2006134841A1/ja active Application Filing
- 2006-06-09 JP JP2007521265A patent/JP4238932B2/ja active Active
- 2006-06-09 AU AU2006258744A patent/AU2006258744A1/en not_active Abandoned
- 2006-06-09 EP EP06766532A patent/EP1897633B1/en active Active
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WO2014002578A1 (ja) * | 2012-06-25 | 2014-01-03 | 新東工業株式会社 | 発泡混練物の造型装置及び発泡混練物の造型方法 |
JP2014004611A (ja) * | 2012-06-25 | 2014-01-16 | Sintokogio Ltd | 発泡混練物の造型装置及び発泡混練物の造型方法 |
KR20150009598A (ko) * | 2012-06-25 | 2015-01-26 | 신토고교 가부시키가이샤 | 발포 혼련물의 조형 장치 및 발포 혼련물의 조형 방법 |
KR101602093B1 (ko) | 2012-06-25 | 2016-03-09 | 신토고교 가부시키가이샤 | 발포 혼련물의 조형 장치 및 발포 혼련물의 조형 방법 |
US9962868B2 (en) | 2012-06-25 | 2018-05-08 | Sintokogio, Ltd. | Device for forming foamed kneaded material and method for forming foamed kneaded material |
WO2018211785A1 (ja) * | 2017-05-19 | 2018-11-22 | 新東工業株式会社 | 鋳型造型装置及び鋳型造型方法 |
JP2018192512A (ja) * | 2017-05-19 | 2018-12-06 | 新東工業株式会社 | 鋳型造型装置及び鋳型造型方法 |
US11554411B2 (en) | 2017-05-19 | 2023-01-17 | Sintokogio, Ltd. | Casting mold making apparatus and mold making method |
JP2021146376A (ja) * | 2020-03-19 | 2021-09-27 | 新東工業株式会社 | 鋳型造型方法 |
JP7230871B2 (ja) | 2020-03-19 | 2023-03-01 | 新東工業株式会社 | 鋳型造型方法 |
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KR20080021781A (ko) | 2008-03-07 |
JP4238932B2 (ja) | 2009-03-18 |
JPWO2006134841A1 (ja) | 2009-01-08 |
AU2006258744A1 (en) | 2006-12-21 |
CN101242919A (zh) | 2008-08-13 |
CN101242919B (zh) | 2010-12-22 |
KR101051494B1 (ko) | 2011-07-22 |
US7766543B2 (en) | 2010-08-03 |
US20090092171A1 (en) | 2009-04-09 |
EP1897633A1 (en) | 2008-03-12 |
EP1897633A4 (en) | 2009-07-22 |
EP1897633B1 (en) | 2011-08-17 |
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