【考案の詳細な説明】 本考案は効果的な冷却を行なえるようにした遠
心鋳造用金型に関するものである。[Detailed Description of the Invention] The present invention relates to a centrifugal casting mold that allows effective cooling.
第１図に従来の遠心鋳造装置の一例を示す。第
２図は第１図の正面図である。 FIG. 1 shows an example of a conventional centrifugal casting apparatus. FIG. 2 is a front view of FIG. 1.
１は金型、２はタイヤ部と呼ばれ、このタイヤ
部は金型１を支持すると共に、コロ５によつて金
型１に回転を与えるため、厚肉に補強されてい
る。６は軸受、７は駆動用のモーターであり、３
は砂型、４が製品となる部分である。８は金型１
の軸方向のタイヤ部２の移動を拘束するためのコ
ロである。９は端板で砂型の補強、溶湯の流れ出
し防止、保温効果などを有する。１０は溶湯を型
内に導くトイであり、１１が溶湯を入れたトリベ
である。１２は冷却用シヤワーパイプで、冷却水
Ｗを噴霧して金型の保護と共に外面からの一方向
凝固による外表面側の品質向上を狙つている。 1 is called a mold, and 2 is called a tire part. This tire part is thickly reinforced in order to support the mold 1 and give rotation to the mold 1 by the rollers 5. 6 is a bearing, 7 is a drive motor, and 3
is the sand mold, and 4 is the part that will become the product. 8 is mold 1
These are rollers for restraining the movement of the tire portion 2 in the axial direction. 9 is an end plate that has the function of reinforcing the sand mold, preventing molten metal from flowing out, and retaining heat. 10 is a toy for guiding the molten metal into the mold, and 11 is a ladle into which the molten metal is placed. Reference numeral 12 denotes a cooling shower pipe, which sprays cooling water W to protect the mold and improve the quality of the outer surface by unidirectional solidification from the outer surface.
上記装置の欠点として、タイヤ部２が高荷重を
支持するだけでなく高速回転を与えるために広
巾、厚肉となるため、タイヤ部２内部の製品の冷
却速度が他の部分に比し遅れ、この結果、この部
分に高温割れなどの鋳造欠陥が集中してくること
がいわれている。 A disadvantage of the above device is that the tire section 2 not only supports a high load but also has a wide and thick wall to provide high speed rotation, so the cooling rate of the product inside the tire section 2 is slower than that of other parts. As a result, it is said that casting defects such as hot cracking become concentrated in this area.
本考案はこの遠心鋳造金型のタイヤ部に集中す
る欠陥を防止することを目的とするもので、タイ
ヤ部に孔またはスリツトを設け、その部分に冷却
水を通過または浸入させることにより、タイヤ部
内部製品の凝固遅れの防止を計つたものである。 The purpose of this invention is to prevent defects that are concentrated in the tire part of this centrifugal casting mold.By providing holes or slits in the tire part and allowing cooling water to pass through or infiltrate the tire part. This is to prevent delays in solidification of internal products.
タイヤ部に孔を設ける場合、金型１とタイヤ部
２の接続部に、金型１の軸方向の貫通孔を設け、
この孔の中に冷却用配管から水を流すことによ
り、一様凝固を達成するものである。 When providing a hole in the tire part, a through hole in the axial direction of the mold 1 is provided at the connection part between the mold 1 and the tire part 2,
Uniform solidification is achieved by flowing water from cooling piping into these holes.
第３〜６図にこの具体例を示す。図中、第１図
と同符号のものは第１図と同一のものを示す。第
３図において１４がタイヤ部２と金型１の接続部
に設けた孔で、１３は冷却用配管の断面である。
孔は円周方向に複数個設ける。第４図は孔への水
の浸入を容易にするために、孔を円周方向にδ分
だけ傾斜させた場合を示す。第５図は同様に水の
浸入を容易にするため入口にガイド孔１５を設置
した場合であり、第６図はガイド孔１５の側から
みた正面図ある。 Specific examples of this are shown in FIGS. 3 to 6. In the figure, the same reference numerals as in FIG. 1 indicate the same parts as in FIG. 1. In FIG. 3, 14 is a hole provided at the connection between the tire part 2 and the mold 1, and 13 is a cross section of the cooling pipe.
A plurality of holes are provided in the circumferential direction. FIG. 4 shows a case where the holes are inclined by δ in the circumferential direction in order to facilitate the infiltration of water into the holes. Similarly, FIG. 5 shows a case where a guide hole 15 is installed at the entrance to facilitate water intrusion, and FIG. 6 is a front view seen from the guide hole 15 side.
一方、タイヤ部にスリツトを設ける場合は具体
例を第７図に示すように、タイヤ部円周方向に複
数本のスリツトを、金型のレベル付近までの深さ
で設け、このスリツト中に冷却シヤワーパイプ１
２からの冷却水を浸入させてタイヤ部の冷却を促
進させるものである。スリツト巾a1、リブ巾a2は
材質、寸法により適宜決定するが、リブの倒れを
防止するためにリブ間に冷却水の浸入のじやまに
ならないようなスペーサーを取り付けることも可
能である。 On the other hand, when providing slits in the tire part, as shown in Fig. 7, multiple slits are provided in the circumferential direction of the tire part at a depth close to the level of the mold. shower pipe 1
Cooling water from No. 2 is allowed to enter to promote cooling of the tire portion. The slit width a1 and the rib width a2 are determined as appropriate depending on the material and dimensions, but in order to prevent the ribs from collapsing, it is also possible to install a spacer between the ribs to prevent cooling water from entering.
例金型外径 1420mmφ金型肉厚 50mm砂型厚み 35mmタイヤ巾 500mmタイヤ高 215mmの遠心鋳造金型の、タイヤ部との接続部に孔径50
mmφ、孔の周方向のピツチ150mmの孔を、設け冷
却を行なつたところ、５分の凝固遅れが解消し、
鋳造欠陥の発生頻度が著しく低下した。Example Mold outer diameter 1420mmφ Mold wall thickness 50mm Sand mold thickness 35mm Tire width 500mm Tire height 215mm A centrifugal casting mold has a hole diameter of 50 at the connection part with the tire.
When holes with mmφ and circumferential pitch of 150 mm were installed and cooled, the 5-minute solidification delay was resolved.
The frequency of casting defects has decreased significantly.
また上記の寸法、材質の金型にスリツトを設け
る場合、強度、冷却水の浸入の容易さなどから、
スリツト巾a1リブ巾a2＝10〜30mm程度が適当で
あつた。 In addition, when creating slits in a mold with the above dimensions and materials, due to strength, ease of infiltration of cooling water, etc.
Slit width a1 rib width a2 = about 10 to 30 mm was appropriate.
第１図は従来の遠心鋳造装置の概略を示す一部
切欠き側面図であり、第２図は第１図の正面図で
ある。第３図、第４図、第５図、第６図、第７図
は本考案の遠心鋳造金型の具体例を示す縦断面図
および横断面図であり、１は金型、２はタイヤ
部、３は砂型、４は製品となる部分、５はコロ、
１３は冷却用配管、１４は孔、１５はガイド孔、
１６はスリツトである。 FIG. 1 is a partially cutaway side view schematically showing a conventional centrifugal casting apparatus, and FIG. 2 is a front view of FIG. 1. 3, 4, 5, 6, and 7 are longitudinal and cross-sectional views showing specific examples of the centrifugal casting mold of the present invention, where 1 is a mold, and 2 is a tire. part, 3 is the sand mold, 4 is the part that will become the product, 5 is the roller,
13 is a cooling pipe, 14 is a hole, 15 is a guide hole,
16 is a slit.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2356882UJPS58128754U (en) | 1982-02-23 | 1982-02-23 | Centrifugal casting mold |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2356882UJPS58128754U (en) | 1982-02-23 | 1982-02-23 | Centrifugal casting mold |
| Publication Number | Publication Date |
|---|---|
| JPS58128754U JPS58128754U (en) | 1983-08-31 |
| JPH0248118Y2true JPH0248118Y2 (en) | 1990-12-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2356882UGrantedJPS58128754U (en) | 1982-02-23 | 1982-02-23 | Centrifugal casting mold |
| Country | Link |
|---|---|
| JP (1) | JPS58128754U (en) |
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