JPS5533828A - Casting method of pipe made of lead - Google Patents
Casting method of pipe made of leadInfo
- Publication number
- JPS5533828A JPS5533828A JP10558478A JP10558478A JPS5533828A JP S5533828 A JPS5533828 A JP S5533828A JP 10558478 A JP10558478 A JP 10558478A JP 10558478 A JP10558478 A JP 10558478A JP S5533828 A JPS5533828 A JP S5533828A
- Authority
- JP
- Japan
- Prior art keywords
- upper mold
- steel wires
- core
- molten metal
- cavity
- 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
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE: To make parting of steel wires easy and finish the inner side of pipe to high accuracy by disposing the steel wires which become the inside diameter core in pipe casting in the cavity part of split patterns, flowing molten metal of Pb-Sb alloy of the specific composition through the sprue of the upper mold into the cavity and letting the molten metal freeze and cool.
CONSTITUTION: The inside diameter core 12 consisting of piano wires 13 and 14 screwed by screw parts 15, 16 is disposed in the recessed groove 4 in the lower mold 3 of split patterns 1 and both ends thereof are protruded to outside the molds and are supported by sub-brackets 9, 10. Next, an upper mold 2 is superposed to complete the casting mold, after which the molten metal of the Pb alloy containing 6 to 8% of Sb is flowed through the sprue 11 of the upper mold 2 into the cavity 5 and is let to freeze and cool. Next, the upper mold 2 is removed and the pipe inserted with the inside diametral core 12 is taken out. The screw part 17 of both piano wires is disconnected, and the inside diametral core 12 is pulled by pulling the both ends on the outer side. This method makes pulling of the steel wires easy owing to the volume increase at the freezing of the alloy and the hardness and thermal conductivity of the steel wires.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10558478A JPS5533828A (en) | 1978-08-31 | 1978-08-31 | Casting method of pipe made of lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10558478A JPS5533828A (en) | 1978-08-31 | 1978-08-31 | Casting method of pipe made of lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5533828A true JPS5533828A (en) | 1980-03-10 |
Family
ID=14411541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10558478A Pending JPS5533828A (en) | 1978-08-31 | 1978-08-31 | Casting method of pipe made of lead |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5533828A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154768A (en) * | 1987-11-06 | 1992-10-13 | Nippon Steel Chemical Co., Ltd. | Solar heat-shielding paint composition and coated structure having the paint layer |
| US5540998A (en) * | 1991-02-08 | 1996-07-30 | Nippon Steel Chemical Co. Ltd. | Solar heat-shielding coating composition and coated structure |
| JP2002105385A (en) * | 2000-09-28 | 2002-04-10 | Nisshin Sangyo:Kk | Application type thermally insulative material |
-
1978
- 1978-08-31 JP JP10558478A patent/JPS5533828A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154768A (en) * | 1987-11-06 | 1992-10-13 | Nippon Steel Chemical Co., Ltd. | Solar heat-shielding paint composition and coated structure having the paint layer |
| US5540998A (en) * | 1991-02-08 | 1996-07-30 | Nippon Steel Chemical Co. Ltd. | Solar heat-shielding coating composition and coated structure |
| JP2002105385A (en) * | 2000-09-28 | 2002-04-10 | Nisshin Sangyo:Kk | Application type thermally insulative material |
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