JPS6434540A - Method for discharging exhaust gas or lost-wax pattern - Google Patents
Method for discharging exhaust gas or lost-wax patternInfo
- Publication number
- JPS6434540A JPS6434540A JP62188851A JP18885187A JPS6434540A JP S6434540 A JPS6434540 A JP S6434540A JP 62188851 A JP62188851 A JP 62188851A JP 18885187 A JP18885187 A JP 18885187A JP S6434540 A JPS6434540 A JP S6434540A
- Authority
- JP
- Japan
- Prior art keywords
- lost
- wax pattern
- gas
- exhaust gas
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007599 discharging Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000004576 sand Substances 0.000 abstract 4
- 239000004793 Polystyrene Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229920002223 polystyrene Polymers 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE:To rapidly and efficiently discharge generated exhaust gas into back sand and to surely prevent residual defect and carbon pickup by forming gas vent hole on coating surface at outer peripheral part of a lost-wax pattern. CONSTITUTION:The lost-wax pattern 1 formed into the prescribed shape with foam polystyrene, etc., is buried into back sand 4 to form the mold 5. At the time of casting, molten metal 6 is poured into the mold 5 under reduced pressure condition in the back sand 4. The lost-wax pattern 1 disappears with heat of the molten metal 6 poured in the mold 5 and a product having the same shape of the lost-wax pattern 1 is cast. Further, as the gas vent member 2 having the same material as the lost-wax pattern 1 also loses when the lost-wax pattern 1 loses, the gas vent hole 7 is formed on the coating layer 3 at the part fitting the gas vent member 2. Then, the exhaust gas of the polystyrene gas, etc., generated when the lost-wax pattern 1 disappears, is rapidly discharged into the back sand 4 from the gas exhaust hole 7 and the discharge of the exhaust gas is efficiently executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62188851A JPS6434540A (en) | 1987-07-30 | 1987-07-30 | Method for discharging exhaust gas or lost-wax pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62188851A JPS6434540A (en) | 1987-07-30 | 1987-07-30 | Method for discharging exhaust gas or lost-wax pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6434540A true JPS6434540A (en) | 1989-02-06 |
Family
ID=16230950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62188851A Pending JPS6434540A (en) | 1987-07-30 | 1987-07-30 | Method for discharging exhaust gas or lost-wax pattern |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6434540A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0763417A1 (en) * | 1995-09-13 | 1997-03-19 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus for determining thickness values and shapes of laminate layers of product |
| KR100615833B1 (en) * | 2004-08-31 | 2006-08-25 | 박영구 | Manufacturing method of precision casting mold |
-
1987
- 1987-07-30 JP JP62188851A patent/JPS6434540A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0763417A1 (en) * | 1995-09-13 | 1997-03-19 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus for determining thickness values and shapes of laminate layers of product |
| KR100615833B1 (en) * | 2004-08-31 | 2006-08-25 | 박영구 | Manufacturing method of precision casting mold |
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