JP2019115915A5 - - Google Patents
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- JP2019115915A5 JP2019115915A5 JP2017250524A JP2017250524A JP2019115915A5 JP 2019115915 A5 JP2019115915 A5 JP 2019115915A5 JP 2017250524 A JP2017250524 A JP 2017250524A JP 2017250524 A JP2017250524 A JP 2017250524A JP 2019115915 A5 JP2019115915 A5 JP 2019115915A5
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molten metal
- sprue bush
- decrease
- aluminum
- 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.)
- Granted
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- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000005266 casting Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
アルミニウム製部材を鋳造法により製造するために、低圧鋳造機が用いられる。低圧鋳造機は、一般に、金型と、この金型の入り口に設けられた湯口ブッシュに連通して設けられたストークと、溶湯が保持される坩堝とを備える。鋳造工程において、坩堝内の溶湯が加圧されることにより、溶湯はストーク、次いで湯口ブッシュを通じて金型内に供給充填され、冷却されて固化した後に金型から取り出され、次の溶湯が供給される。この一連の作業の過程で、その内側が溶湯に曝される湯口ブッシュは、アルミニウム溶湯との反応によりその一部が消失する、いわゆる溶損が発生する場合がある。溶損が発生すると、アルミニウム製部材に鉄分が解け出しコンタミネーションとなり、アルミニウム製部材の強度低下などを招き、アルミニウム製部材の製造歩留まりの低下を招く場合がある。また、溶損が生じた湯口ブッシュは新品に交換されるが、湯口ブッシュは交換した後、使用温度条件に安定するまでの保守時間が長く、その間鋳造機の作動を止めなければならず、計画的な生産ができないため生産性の低下を招く。
A low pressure casting machine is used to manufacture aluminum members by a casting method. The low-pressure casting machine generally includes a mold, a stalk provided in communication with a sprue bush provided at the entrance of the mold, and a crucible in which the molten metal is held. In the casting step, the molten metal in the crucible is pressurized, the molten metal stalk, then fed filled into the mold through the hot water inlet bushing is removed from the mold after solidification are cooled, supply the following melt Will be done. In the process of this series of operations, a part of the sprue bush whose inside is exposed to the molten metal may disappear due to the reaction with the molten aluminum, so-called melting damage may occur. When melting loss occurs, iron is dissolved in the aluminum member and becomes contamination, which may lead to a decrease in the strength of the aluminum member and a decrease in the manufacturing yield of the aluminum member. In addition, the sprue bush that has been melted is replaced with a new one, but after the sprue bush is replaced, the maintenance time until it stabilizes at the operating temperature condition is long, and the operation of the casting machine must be stopped during that time. It causes a decrease in productivity because it cannot be produced in a standard manner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017250524A JP6956625B2 (en) | 2017-12-27 | 2017-12-27 | Low pressure casting machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017250524A JP6956625B2 (en) | 2017-12-27 | 2017-12-27 | Low pressure casting machine |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2019115915A JP2019115915A (en) | 2019-07-18 |
JP2019115915A5 true JP2019115915A5 (en) | 2020-11-12 |
JP6956625B2 JP6956625B2 (en) | 2021-11-02 |
Family
ID=67304896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017250524A Active JP6956625B2 (en) | 2017-12-27 | 2017-12-27 | Low pressure casting machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6956625B2 (en) |
-
2017
- 2017-12-27 JP JP2017250524A patent/JP6956625B2/en active Active
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