JPS625704B2 - - Google Patents
Info
- Publication number
- JPS625704B2 JPS625704B2 JP10894276A JP10894276A JPS625704B2 JP S625704 B2 JPS625704 B2 JP S625704B2 JP 10894276 A JP10894276 A JP 10894276A JP 10894276 A JP10894276 A JP 10894276A JP S625704 B2 JPS625704 B2 JP S625704B2
- Authority
- JP
- Japan
- Prior art keywords
- casting
- mold
- rear end
- slag
- stepped portion
- 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.)
- Expired
Links
- 238000005266 casting Methods 0.000 claims description 24
- 239000002893 slag Substances 0.000 claims description 11
- 238000009750 centrifugal casting Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 5
- 230000002950 deficient Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は遠心鋳造用金型に関するものである。
従来では遠心鋳造により鋳物を作るとき遠心力に
より鋳物後端にノロが集まり不良部分が形成さ
れ、そのため金型より取り出された鋳物の不良部
分を切除する必要がある。しかし鋳物後端のノロ
が混在している部分を切除すると鋳物の全体長さ
が短かくなり、溶湯を無駄に使用することにな
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a centrifugal casting mold.
Conventionally, when a casting is made by centrifugal casting, slag collects at the rear end of the casting due to centrifugal force, forming a defective part.Therefore, it is necessary to cut out the defective part of the casting taken out from the mold. However, if the part at the rear end of the casting where slag is mixed is removed, the overall length of the casting will be shortened, resulting in a waste of molten metal.
本発明は斯かる問題に対処すべく為されたもの
である。 The present invention has been made to address this problem.
このため本発明は、遠心鋳造用金型の鋳成形面
に隣接した金型後端側内面全周に、前記鋳物成形
面にテーパ面により連結されるとともに、内方に
突出して薄肉のノロを形成可能な適当長さの段部
を設け、かつ、この段部に隣接した金型後端側内
面全周に、ノロ止め用突出部を設けたものであ
る。 For this reason, the present invention provides a thin-walled slag that is connected to the casting surface by a tapered surface and protrudes inward on the entire inner circumference of the rear end side of the centrifugal casting mold adjacent to the casting surface. A step portion of an appropriate length that can be formed is provided, and a protrusion for preventing slag is provided around the entire inner circumference of the rear end side of the mold adjacent to the step portion.
以下本発明を実施の一例を示す図面に基づいて
説明する。図において１は遠心鋳造用金型であ
り、該金型１の鋳物成形面２に隣接する金型１の
後端側内面全周は内方に突出して適当長さの段部
３が形成されている。４は該段部３に隣接する金
型１の後端側内面全周に形成されたノロ止め用突
出部である。尚前記鋳物成形面２と段部３との間
はテーパー面５により連結されている。６は鋳
物、７は該鋳物６の後端部に集合したノロ、８は
金型１の中心線である。 The present invention will be described below based on drawings showing an example of implementation. In the figure, reference numeral 1 denotes a centrifugal casting mold, and the entire inner circumference of the rear end side of the mold 1 adjacent to the casting forming surface 2 of the mold 1 protrudes inward to form a stepped portion 3 of an appropriate length. ing. Reference numeral 4 designates a slag-stopping protrusion formed on the entire inner circumference of the rear end side of the mold 1 adjacent to the stepped portion 3. Note that the casting surface 2 and the stepped portion 3 are connected by a tapered surface 5. 6 is a casting, 7 is a slag gathered at the rear end of the casting 6, and 8 is a center line of the mold 1.
従つて斯かる構成の遠心鋳造用金型を用いて遠
心鋳造を行なうとき、遠心力によりノロ７は鋳物
成形面２を金型１後側端へ移動してテーパー面５
を越えて段部３側へ移動する。段部３の位置にお
いては鋳物成形部の深さよりも浅くなつており、
ノロ７のみが段部３の長さ方向全体に亘つて移動
し、前記突出部４によつてその移動が止められ
る。従つて鋳物６の後端部には従来のようにノロ
が混在することなく、ノロのみが厚さの薄い範囲
内で以つて鋳物６の後端部に形成される。以上の
ようにして作られた鋳物６は金型１から取り出さ
れた後その後端部のノロ７を切除することにより
製品となる。なお具体例として、たとえば鋳物成
形面２の内径が500mmの場合に、テーパ面５の角
度は30度、段部３の高さは鋳物成形面２より15
mm、段部３の長さは200mmとなる。このとき、ノ
ロ７の厚さは５mm程度となる。 Therefore, when centrifugal casting is performed using a centrifugal casting mold having such a configuration, centrifugal force causes the groove 7 to move the casting molding surface 2 toward the rear end of the mold 1, causing the tapered surface 5 to move.
, and move to the stepped portion 3 side. At the position of the step part 3, the depth is shallower than the depth of the casting molding part,
Only the groove 7 moves along the entire length of the stepped portion 3, and its movement is stopped by the protruding portion 4. Therefore, slag is not mixed at the rear end of the casting 6 as in the conventional case, and only slag is formed at the rear end of the casting 6 within a thin range. After the casting 6 made in the above manner is taken out from the mold 1, the groove 7 at the rear end is cut off to produce a product. As a specific example, if the inner diameter of the casting surface 2 is 500 mm, the angle of the tapered surface 5 is 30 degrees, and the height of the stepped portion 3 is 15 degrees above the casting surface 2.
mm, and the length of the stepped portion 3 is 200 mm. At this time, the thickness of the groove 7 is approximately 5 mm.
本発明遠心鋳造用金型は以上述べたように実施
し得るものであり、段部およびノロ止め用突出部
により、鋳物の後端部においてこの鋳物から分離
してノロのみを薄肉で集合させることができるた
め、従来のようにノロが混在している鋳物後端部
を切除する場合に比べて溶湯を有効に使用し得、
しかも金型自体の構成も特に複雑となることもな
い。 The centrifugal casting mold of the present invention can be implemented as described above, and the step part and the slag-stopping protrusion allow the slag to be separated from the casting at the rear end and collect only the slag in a thin wall. As a result, the molten metal can be used more effectively than when cutting off the rear end of the casting, which has slag mixed in, as in the past.
Moreover, the structure of the mold itself is not particularly complicated.
図面は本発明の実施の一例を示す断面図であ
る。
１……遠心鋳造用金型、２……鋳物成形面、３
……段部、４……突出部、５……テーパー面、６
……鋳物、７……ノロ、８……中心線。
The drawing is a sectional view showing an example of implementation of the present invention. 1...Centrifugal casting mold, 2...Casting molding surface, 3
...Stepped portion, 4...Protrusion, 5...Tapered surface, 6
...Casting, 7...Size, 8...Center line.
Claims (1)
後端側内面全周に、前記鋳物成形面にテーパ面に
より連結されるとともに、内方に突出して薄肉の
ノロを形成可能な適当長さの段部を設け、かつ、
この段部に隣接した金型後端側内面全周に、ノロ
止め用突出部を設けたことを特徴とする遠心鋳造
用金型。1. An appropriate length that is connected to the casting molding surface by a tapered surface and protrudes inward to form a thin slag around the entire inner circumference of the mold rear end side adjacent to the casting molding surface of the centrifugal casting mold. A stepped portion is provided, and
A centrifugal casting mold characterized in that a slag-stopping protrusion is provided on the entire inner circumference of the rear end side of the mold adjacent to the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10894276A JPS5333921A (en) | 1976-09-10 | 1976-09-10 | Metal mould for centrifugal casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10894276A JPS5333921A (en) | 1976-09-10 | 1976-09-10 | Metal mould for centrifugal casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5333921A JPS5333921A (en) | 1978-03-30 |
| JPS625704B2 true JPS625704B2 (en) | 1987-02-06 |
Family
ID=14497547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10894276A Granted JPS5333921A (en) | 1976-09-10 | 1976-09-10 | Metal mould for centrifugal casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5333921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147502U (en) * | 1988-03-31 | 1989-10-12 |
-
1976
- 1976-09-10 JP JP10894276A patent/JPS5333921A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147502U (en) * | 1988-03-31 | 1989-10-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5333921A (en) | 1978-03-30 |
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