JPS5930461A - Stack casting method using mold - Google Patents
Stack casting method using moldInfo
- Publication number
- JPS5930461A JPS5930461A JP14002982A JP14002982A JPS5930461A JP S5930461 A JPS5930461 A JP S5930461A JP 14002982 A JP14002982 A JP 14002982A JP 14002982 A JP14002982 A JP 14002982A JP S5930461 A JPS5930461 A JP S5930461A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molten metal
- product
- parts
- molds
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 21
- 239000004576 sand Substances 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 15
- 208000015943 Coeliac disease Diseases 0.000 description 6
- 238000009750 centrifugal casting Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 206010041235 Snoring Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/06—Centrifugal casting; Casting by using centrifugal force of solid or hollow bodies in moulds rotating around an axis arranged outside the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、いわゆる小物鋳造製品の鋳造方法に関するも
のである。鋳物製品のうち極小製品については、その鋳
造について問題点を有している。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for casting so-called small cast products. Among cast products, extremely small products have problems in casting.
即ち小物製品の場合、製品重量が小さいため、湯口、湯
道等の部分の割合が太き（、従って鋳型への場合３５％
前後であり、同一鋳型を積層して注湯するスタック方式
の場合でも５０％前後である。In other words, in the case of small products, since the product weight is small, the proportion of parts such as sprues and runners is thick (therefore, in the case of molds, 35%
Even in the case of a stack method in which the same molds are stacked and poured, the ratio is around 50%.
近時鋳造における溶解エネルギーは高騰の一途を辿りつ
つある状態であり、この製品歩留率の向１゜は鋳造品の
製造コストの低減を図る関係者にとって腐心すべき関心
事である。In recent years, melting energy in casting has been increasing rapidly, and the improvement in product yield rate is a matter of great concern to those concerned with reducing the manufacturing cost of cast products.
本発明はこの小物鋳造品の製品歩留率を大１＋に向」ニ
させるもので、以下図面により本発明による中央化を有
する円形小物鋳造品への実施例を説明すると、金型（１
）は中心部に円形中空部（２）を有する円形のものとし
、円周肉厚部に同形の製品室（３）が円周に沿う形で並
設されているものとする。そして表面中央部の中空部（
２）の外周部にテーパ一部を有する円形凸段部（４）を
有し、裏面中央部に同形の凹設部（５）を有しており、
且つ外周部沿いに表面に曲設状の外環座（６）を持つ貫
通孔（７）を有しており、且つその裏面部には貫通孔（
７）の周囲に凹設部を有して、（、いるものとする。第
３図はこの金型（１）の製品室（３）に砂型（８）を内
蔵したものを積層した状態を示しているが、各金型（１
）は中央の凸段部（４）および凹設部（５）によって噛
み合い、更に貫通孔（７）の周囲の外環座（６）および
凹設部が噛み合って組合され、砂型（８）は金型（１）
の製品室（３）から」二部を一部突出した状態で内蔵さ
れるが、その砂型（８）の突出寸法だけ各金型（１）の
間に間隙部（９）があるものとするが、その先端部の貫
通孔（７）の凸設外環座（６）のみはその部分の金型（
１）の間隙（９）を埋めているものとする。積層鋳型の
最−に段には蓋型θ０）があり、その中に配湯孔（ｌυ
を持つ配湯室０２）を形成する形の円形の砂枠（１３）
が内蔵されているものとし、最下段には積層鋳型の底部
を形成する円形の底板０４）があるものとする。The present invention aims to increase the product yield rate of small castings toward large 1+. Below, an example of a circular small casting with centralization according to the present invention will be explained with reference to the drawings.
) is circular with a circular hollow part (2) in the center, and product chambers (3) of the same shape are arranged in parallel along the circumference in the thick part of the circumference. And the hollow part in the center of the surface (
2) has a circular convex step part (4) with a partially tapered part on the outer periphery, and has a concave part (5) of the same shape in the center of the back surface,
In addition, it has a through hole (7) having a curved outer ring seat (6) on the surface along the outer periphery, and a through hole (7) on the back surface thereof.
7) with a recessed part around it. Figure 3 shows the state in which molds (1) with built-in sand molds (8) are stacked in the product chamber (3). Although each mold (1
) are engaged by the central convex step (4) and concave part (5), and the outer ring seat (6) and concave part around the through hole (7) are engaged and combined, and the sand mold (8) is assembled. Mold (1)
The product chamber (3) is built in with the second part partially protruding, but there is a gap (9) between each mold (1) by the protruding dimension of the sand mold (8). However, only the convex outer annular seat (6) of the through hole (7) at the tip of the mold (
It is assumed that the gap (9) in 1) is filled. There is a lid type θ0) at the top stage of the laminated mold, and there is a molten metal distribution hole (lυ
A circular sand frame (13) that forms a hot water distribution room (02) with
It is assumed that there is a circular bottom plate 04) that forms the bottom of the laminated mold at the lowest stage.
そしてこの蓋型（１０）および砂枠０３）並びに底板０
→には金型（１）の貫通孔（７）と同位置に貫通孔があ
り、それらの貫通孔を貫通した丸棒の上部に設けられた
穴へ打ち込まれたくさび（１５）により締付けられるも
のとする。This lid mold (10), sand frame 03) and bottom plate 0
→ has a through hole at the same position as the through hole (7) of the mold (1), and is tightened by a wedge (15) driven into the hole provided at the top of the round bar that passes through these through holes. shall be taken as a thing.
砂型（８）は、シェル型・ゴールドボックス型等の乾燥
砂型とし、第４図〜第６図に示子如く表面の中心に凸段
部ｆａｌを持つ凹設部（ｂｌを有しているものである。The sand mold (8) is a dry sand mold of shell type, gold box type, etc., and has a recessed part (bl) with a convex step part fal in the center of the surface as shown in Figures 4 to 6. It is.
そして凸段部ｆａ）の中心には貫通する湯道（Ｃ）かあ
るが、この湯道ｆｃ）は中途から太くなって湯溜りｔｄ
ｌとなって裏面に開口しているものとし、また凸段部（
ａ）の先端には温順（ｅ）が設けられているものとする
。この砂型（８）を各金型（１）の製品室（３）番こ内
蔵し、蓋型００）に注入カップ（１６）から金属溶湯を
注入するのであるが、その場合注入された溶湯は配湯室
θ２）に充満し、配湯孔（１１）から各金型（１）の製
品室（３）に流下して配湯され、ついで砂型（８）の湯
道（ＣＩから湯溜り（・」）を経て温順ｆｅ）から凹設
部（ｂ）へ注入されて順次製品を形成するものである。There is a runner (C) that passes through the center of the convex step fa), but this runner fc) becomes thicker in the middle and forms a pool td.
1 and is open on the back side, and the convex step part (
It is assumed that the tip of a) is provided with a gentle temperature (e). This sand mold (8) is built into the product chamber (3) of each mold (1), and molten metal is poured into the lid mold (00) from the pouring cup (16). The hot water fills the hot water distribution chamber θ2), flows down from the hot water distribution hole (11) to the product chamber (3) of each mold (1), and is then distributed from the runner (CI) of the sand mold (8) to the hot water pool ( The product is sequentially injected into the concave portion (b) through the warm temperature fe).
そしてその際、発生ずるガスは製品室（３）の外周部の
金型（１）の間隙部（９）から外部へ放出されるので、
金型（］）内にガスが閉じ込められて製品のピンホール
の原因となる湯溜り（ｄｉ・配湯室θ２）および注入力
・ンプ（１６）に充満されるが、第１７図〜第１８図に
示す太い湯口棒（ａ）および湯道（ｈ＋を有する従来方
式の鋳造法と比較して大ｌｊに製品歩留率が大となるの
である。At that time, the gas generated is released to the outside from the gap (9) of the mold (1) at the outer periphery of the product chamber (3).
Gas is trapped in the mold () and fills the hot water reservoir (di/distribution chamber θ2) and injection force pump (16), which causes pinholes in the product. Compared to the conventional casting method which has a thick sprue rod (a) and a runner (h+) shown in the figure, the product yield rate increases by a large lj.
第７図は第３図を参照として説明すると、第３図の積層
鋳型に駆動モーター（１７）の回転を伝達するようにし
て積層鋳型を回転せしめる本発明の実施方式を示してい
るが、図中０８）は積層鋳型、（１９）は傾斜台、■０
）はベルト、Ｈは回転ローラー、（２１ま振止めローラ
ー、０匈は注入箱である。この場合、積層鋳型（１８）
内における溶湯の注入過程よりみて縦型の遠心鋳造機に
よる回転が好ましいが、この場合番こは積層鋳型（１８
）の長さが直径よりもかなり犬となるので、これを縦型
で回転させることは危険なので傾斜式の遠心鋳造機構に
より回転を与えることが好ましい。この鋳型（１８）へ
の注湯は鋳型（１８）を低速回転させながら注入箱（ハ
）を経由して蓋型（１０）の配湯室０２）へ行うが、注
入された金属溶湯は遠心力を与えられて配湯室θ２）の
外壁に押し付けられ、その部分に設けられている配湯孔
（１１）から各製品室（３）へ送られる。そして各金型
（１）の砂型（８）の凹設部ｔｂ］へ順次注入されて製
品を形成するのである。この場合の金属溶湯の量は各金
型（１）の砂型（８）の湯道（ＣＩ・湯溜りｆｄｌ・温
順（ｅｌおよび製品となる凹設部ｔｂ＋を充満させ、更
に配湯室（１２）の外壁へ若干の残湯が残る程度の量を
もって定量とし、鋳型（１８）の回転速度は金属溶湯を
配湯室（Ｉ２）の外壁に押し付け、更に注湯による発生
ガスを外部に放出するにたる遠心力を生みだすだけのも
のでよく、また必要な回転時間は溶湯が凝固するまでの
時間である。特に回転速度に殺することなく、しかも配
湯室０２）の溶湯がト一部の金型（」）へ流下注入され
て、減少するに従って順次溶湯を配湯室θ２）の外壁附
近の配湯孔（１１）に送り、最後には残湯か配湯室θ２
）外壁へ押し付けられて残るのみで、配湯室（１２）は
殆んど空間になるまでの遠心力を生じる程度に鋳型の回
転を調整することが必要である。実験の結果では、直径
２００％の金型を製品重量０．０４ Ｋｙ Ｘ ８個と
して２０段積層して長さ４００％・総重量５０Ｋｇの鋳
型にして傾斜角６０度に設定し、６００ ｒＪ）、ｍ、
で回転せしめて約２０秒間に７．５ Ｋｑの溶湯を注湯
し、注湯後約２分後に回転を止めた場合に、はぼ前記の
要件に適合し、配湯室θ２）は中空となり各鋳型（１）
の製品は完成された。そして遠心力によるガスの放出効
果も抜群であった。FIG. 7 will be explained with reference to FIG. 3. It shows an implementation method of the present invention in which the laminated mold shown in FIG. 3 is rotated by transmitting the rotation of the drive motor (17) to the laminated mold. Middle 08) is a laminated mold, (19) is a slope, ■0
) is a belt, H is a rotating roller, (21 is a steady roller, and 0 is an injection box. In this case, the laminated mold (18)
Rotation by a vertical centrifugal casting machine is preferable in view of the molten metal injection process in the mold, but in this case the casting machine is a laminated mold (18
) is much longer than the diameter, so it is dangerous to rotate it vertically, so it is preferable to apply rotation using an inclined centrifugal casting mechanism. Molten metal is poured into the mold (18) while rotating the mold (18) at a low speed via the pouring box (c) into the distribution chamber 02) of the lid mold (10), but the poured molten metal is centrifuged. A force is applied to the melt and it is pressed against the outer wall of the hot water distribution chamber θ2), and is sent to each product chamber (3) through the hot water distribution hole (11) provided in that portion. Then, it is sequentially poured into the concave portion tb of the sand mold (8) of each mold (1) to form a product. In this case, the amount of molten metal is enough to fill the runners (CI, sump fdl, temps (el) of the sand mold (8) of each mold (1) and the concave part tb+ that will become the product, and further fill the molten metal channel (12 ), and the rotational speed of the mold (18) is such that the molten metal is pressed against the outer wall of the distribution chamber (I2), and the gas generated by pouring is released to the outside. The required rotation time is the time required for the molten metal to solidify.In particular, it does not affect the rotation speed, and the molten metal in the distribution chamber 02) is The molten metal is injected into the mold (''), and as it decreases, the molten metal is sent to the distribution hole (11) near the outer wall of the distribution chamber θ2), and finally the remaining molten metal is poured into the distribution chamber θ2).
) It is necessary to adjust the rotation of the mold to such an extent that the centrifugal force is generated so that the dispensing chamber (12) becomes almost a space only by being pressed against the outer wall. According to the results of the experiment, a mold with a diameter of 200% and a product weight of 0.04 Ky x 8 pieces were stacked in 20 stages to form a mold with a length of 400% and a total weight of 50 kg, set at an inclination angle of 60 degrees, and 600 rJ) ,m,
If 7.5 Kq of molten metal is poured in about 20 seconds by rotating at Each mold (1)
The product has been completed. The gas release effect due to centrifugal force was also outstanding.
第８図は本発明の他の実施例を示すもので、金型（１）
は円周肉厚部に製品室（３）を並設し、中心部に円形中
空部（２）を有するものであるが、その製品室（３）と
中空部（２）の隔壁（ハ）に温順孔に）を設け、製品室
（３）および温順孔に）内に砂型（８）を内蔵した金型
（」）を積層した鋳型に駆動モーター（１７）の回転を
伝達する方式である。砂型（８）は第９図〜第１Ｉ図に
示す如く表面の中心に凸段部ｆａ＋を持つ凹設部ｔｂ）
を有している一部突出状の円形のもので、金型（１）の
製品室（３）および温順孔（Ｚ９）に嵌り込む形状のも
のとする。そして突出部の裏面には湯道ｆｃｌと湯溜り
（ｄ）を何しているものとする。この砂型（８）を内蔵
した金型（１）を積層した鋳型を第１２図に示す如く横
型の遠心鋳造機にセットし、駆動モーター０７）の回転
を伝達しながら、注入箱（ハ）から金属溶湯を鋳型（１
８）内の中空部（２）へ注湯するのである。その場合注
湯された溶湯は鋳型（１８）の回転によって遠心力を与
えられ、中空を充満して製品を形成するのである。そし
て順次全金型（１）の温順孔に）から砂型（８）内に注
入されるのであるが、最終的には各金型（すの中空部（
２）より若干小さい上板Ｇ２時の中空部から残湯がオー
バーフローされるものとし、従って鋳型（１８）内の残
湯は金型（１）の中空部（２）と」二板（ハ）の中空部
の寸法差の厚みだけ隔壁（２喧の内周に貼り付いた形で
凝固（＝Ｊ着することになるのである。FIG. 8 shows another embodiment of the present invention, in which the mold (1)
The product chamber (3) is arranged side by side in the circumferential thick part and has a circular hollow part (2) in the center, but the partition wall (c) between the product chamber (3) and the hollow part (2) is In this method, the rotation of the drive motor (17) is transmitted to the molds, which are stacked with a mold ('') with a built-in sand mold (8) inside the product chamber (3) and the temperature hole). . As shown in Figures 9 to 1I, the sand mold (8) has a concave part tb with a convex stepped part fa+ at the center of the surface.
It has a partially protruding circular shape and has a shape that fits into the product chamber (3) and temperature-prone hole (Z9) of the mold (1). It is assumed that there are a runner fcl and a hot water reservoir (d) on the back side of the protrusion. The mold in which the mold (1) containing the sand mold (8) is stacked is set in a horizontal centrifugal casting machine as shown in Fig. 12, and while transmitting the rotation of the drive motor 07), the casting box (c) is Molten metal into a mold (1
8) into the hollow part (2) inside. In this case, the poured molten metal is subjected to centrifugal force by the rotation of the mold (18), filling the hollow space and forming a product. It is then injected into the sand mold (8) through the warm-temperature holes of all the molds (1), but ultimately it is poured into the hollow part of each mold (
2) The remaining metal will overflow from the hollow part of the upper plate G2, which is slightly smaller than that of the upper plate G2, and therefore the remaining metal in the mold (18) will be mixed with the hollow part (2) of the mold (1) and the second plate (c). It will solidify (= J-bond) by sticking to the inner periphery of the partition wall (two walls) by the thickness of the difference in the dimensions of the hollow part.
第１３図は製品室（３）へ砂型を使用せず製品室（３）
と中空部（２）との隔壁Ｈの温順孔０句だけに砂型（８
）を使用する実施例である。金型（］、）は中心部に円
形中空部（２）を有し円周肉厚部に製品室（３）を並設
するか、製品室（３）は前述の実施例と異なり底部を有
する円形孔である。砂型（８）は第１４図〜第１６図に
示す如く隔譬Ｑ復の温順孔（２つに収まる形状で、裏面
部に湯道（ｃ）と湯溜り＋ｃｌ）を有するものとし、金
型（１）の温順孔（２ツにセットしたときに製品室（３
）の底部と砂型（８）の裏面部が水平に同一線」―にな
るものとする。この金型（＋＋を図の如く積層して横型
遠心鋳造機構にセットして回転させながら中空部（２）
に金属溶湯を注入するのである。この場合注入された溶
湯は鋳型の回転によって遠心力を与えられて隔壁（ハ）
方向に押しやられ、その部分にある温順孔０５）内の砂
型（８）の湯道（ｃｌから製品室（３）内に充鎮されて
製品を形成する効果は第１２図の場合と全く同じである
。そして鋳型内の残湯は各金型（１）の中空部（２）と
上板の中空部の寸法差の厚みだけ最終的に凝固１７１゛
着することになるのである。Figure 13 shows the product room (3) without using a sand mold.
A sand mold (8
). The mold (],) has a circular hollow part (2) in the center and a product chamber (3) arranged side by side in the thick part of the circumference, or the product chamber (3) has a bottom part unlike the above-mentioned embodiment. It has a circular hole. As shown in Figures 14 to 16, the sand mold (8) shall have a 2-way hole (with a shape that fits in two, a runner (c) and a pool + cl) on the back side, and the mold (1) Temperature hole (when set to 2, the product chamber (3)
) and the back of the sand mold (8) shall be in the same horizontal line. This mold (++) is stacked as shown in the figure, set in a horizontal centrifugal casting mechanism, and rotated to form the hollow part (2).
The molten metal is injected into the molten metal. In this case, the injected molten metal is given centrifugal force by the rotation of the mold, and the molten metal is exposed to the partition wall (c).
The effect of filling the product chamber (3) from the runner (cl) of the sand mold (8) in the warm hole 05) in that part to form the product is exactly the same as in the case of Fig. 12. The residual metal in the mold will eventually solidify by a thickness equal to the dimensional difference between the hollow part (2) of each mold (1) and the hollow part of the upper plate.
以上中央孔を有する製品への本発明の実施例を述べたが
、孔部を有しない製品への本発明の実施例については第
４図〜第６図および第９図〜第Ｈ図に示す中央孔を有す
る砂型の場合の凸段部（ａ）がなく凹設部（ｂｌのみの
砂型を積層する形状として各砂型の凹設部を湯道で」−
下に連結する実施方法でいいのである。The embodiments of the present invention applied to products having a central hole have been described above, but the embodiments of the present invention applied to products without holes are shown in FIGS. 4 to 6 and 9 to H. In the case of a sand mold with a central hole, there is no convex step (a) and there is only a concave part (bl), and the concave part of each sand mold is stacked with a runner.
An implementation method that connects them below is fine.
以上の如く本発明を実施することにより、小物製品を効
率よく鋳造することができるが、例えば本発明はカーク
ーラーの部品である中央孔のあるカバープレートの鋳造
に最適である。カバープレートの場合、単重０．０４
Ｋｒと鋳造品として（ま極小品であるものか多い一反面
その材質はＦＣ３０以」二と比較的高品質を求められて
いる。従来カバープレートは第１７図に示す如く普通タ
イプの生砂型で太い湯口棒（ａ）から太い湯道（ｂ）の
周囲に多数個の製品（Ｃ）を取る方法か、或は第１８図
に示す如く太い湯口棒（ａ）と湯道ｆｂ）をもって多数
個取りの生砂型を積層する普通タイプのスタック方式に
よっていたか、何れの方式の場合も太い湯口棒（ａ）と
湯道ｆｉ＋が煩いして、その歩留率は３５％〜５０％程
度であり、また何れの場合でも大量の生砂を使用するた
め良品を得るための砂処理の管理に少な（ない労力と費
用を要している現状である。By implementing the present invention as described above, small products can be cast efficiently. For example, the present invention is most suitable for casting cover plates with a central hole, which are parts of car coolers. For cover plate, unit weight 0.04
As Kr and cast products (many of them are extremely small products, on the other hand, the material is required to be relatively high quality, FC30 or higher).Conventionally, cover plates are of a normal type green sand mold as shown in Figure 17. The method is to take a large number of products (C) from a thick sprue rod (a) around a thick runner (b), or to take a large number of products (C) from a thick sprue rod (a) and a runner fb) as shown in Fig. The normal type stacking method of stacking green sand molds was used, but in both methods, the thick sprue rod (a) and runner FI+ were cumbersome, and the yield rate was about 35% to 50%. In addition, in both cases, a large amount of raw sand is used, so managing the sand treatment to obtain good quality products requires little labor and cost.
また、第［８図によるスタック方式をシェル鋳型により
実施している例もあるが、この場合は寸法精度のいい良
品は得られるものの高価なシェル砂型を鋳型全体に使用
するので、高価なものとなるが、本発明の場合はシェル
砂型を使用するとしても製品の周囲部分だけの少量使用
なのでコスト」二の大きな問題にはならないのである。In addition, there are examples in which the stack method shown in Figure 8 is implemented using a shell mold, but in this case, although a good product with good dimensional accuracy can be obtained, an expensive shell sand mold is used for the entire mold, so it is not expensive. However, in the case of the present invention, even if a shell sand mold is used, it is only used in small quantities around the product, so it does not pose a major problem in terms of cost.
本発明の実施テストはこのカバープレートによっている
が、従来第１７置方式により鋳造していた関係で製品の
型崩れ、ピンホール等の不良品の発生が多く、そのため
機械加工による不良部分の削り捨でのため鋳造品の一部
品種につき単重００４に７の規格品のところを単重０．
０７ Ｋｇと大きく鋳造していたが、本発明による実施
テストでは前記のとおり彫型０．０４ Ｋｑとして良品
を得たのである。The practical test of the present invention was carried out using this cover plate, but since conventional casting was performed using the 17th casting method, there were many defects such as deformation of the product and pinholes, so the defective parts were removed by machining. Therefore, for some types of cast products, the unit weight is 0.04 to 7 standard products.
Although the mold was cast in a large size of 0.07 Kg, in tests conducted according to the present invention, a good product was obtained with a mold weight of 0.04 Kq as described above.
それはシェル砂型による寸法精度の良い鋳造品が得られ
たことと、ガス放出効率が良いためにカス残留であるピ
ンホールの無い製品を得ることが出来たことによるので
ある。This is because a cast product with good dimensional accuracy can be obtained using a shell sand mold, and because the gas release efficiency is good, a product without pinholes, which are residual residue, can be obtained.
本発明は以上述べた如く小物製品の鋳造法として従来方
式のものよりも優れた手法であるが、その効果をまとめ
ると次の通りである。製品歩留率が良好で特に遠心鋳造
機にセットする場合は９０％程度となり、而かも煩はし
い砂処理が必要でなく作業環境を損はない。また一度に
大量の製品の鋳造が可能であり、しかも寸法精度がよく
カス抜きも良好なので均一な高品質の小物製品が得られ
る。更に注入溶湯が金型の内面に接触しない実施か法を
選べば溶湯の温度ドロップも少く、同時に金型の寿命も
長いなと、製品の総合コストの低減・品質の安定・作業
環境の改善等の効果が期待出来るのである。As described above, the present invention is a method superior to conventional methods as a casting method for small products, and its effects can be summarized as follows. The product yield rate is good, especially around 90% when set in a centrifugal casting machine, and there is no need for troublesome sand treatment, which does not harm the working environment. In addition, it is possible to cast a large number of products at once, and the dimensional accuracy is good and waste removal is also good, so small products of uniform high quality can be obtained. Furthermore, if you choose a method that does not allow the molten metal to come into contact with the inner surface of the mold, there will be less temperature drop in the molten metal, and at the same time, the life of the mold will be longer, reducing the overall cost of the product, stabilizing quality, and improving the working environment. The effects can be expected.
第１図は本発明の実施による鋳型の平面図、第２図はそ
の断面図、第３図はその鋳型を積層した状態を示す断面
図、第４図は砂型の表面図、第５図はその断面図、第６
図はその裏面図、第７図は本発明の他の実施態様を示す
一部断面図、第８図は本発明の異った実施態様による積
層鋳型の一部断面図、第９図はその砂型の表面図、第１
０図はその断面図、第１１図はその裏面図、第１２図は
第８図の積層鋳型を横型遠心鋳造機にセットシた状態を
示を一部断面図、第１３図は本発明の他の実施態様によ
る積層鋳型の一部断面図、第１４図はその砂型の表面図
、第１５図はその断面図、第１６図はその裏面図、第１
７図〜第１８図は従来の鋳造方式による鋳型の断面図で
ある。
符号の説明
（１）・・・金型 （２）・・・中空部 （３）・・・
製品室 （４）・・・凸段部 （５）・・・凹設部 （
６）・・・貫通孔の外環座 （７）・・・貫通孔 （８
）・・・砂型 （９）・・・間隙部 θ０）・・・蓋型
（１１）・・・配湯孔 ０２）・・・配湯室 （１３
）・・・砂枠 ０４）・・・底板 （Ｊ５）・・・（さ
び （Ｉ６）・・・注入カップ （１７）・・・駆動モ
ーター （］８）・・・積層鋳型 （１９）・・・傾斜
台 （イ）・・・ベルＩ−（２］）・・・回転ローラー
（２鼾・・振ＩＪ：、めローラー （ハ）・・・注入
箱 （２→・・、・隔壁 に）・・・温順孔 に）・・
・１−板 ｔａ）・・・砂型の凸段部ｔｂ＋・・・凹設
部 （Ｃ）・・・湯道 （ｄｉ・・・湯溜り ｔｅ＋・
・・揚収（ａ）・・・従来方式の湯口棒 ｔｈ＋・・・
その湯道 （Ｃ）・・その製品。
特許出願人
道広正己
之−４図 オ引図 オｅ図オフ角
才２ａ
才ｑ洲 オＩｏＺ オフ１■オ１２囮
ム）
才１４図 ）Ｘ＋５ＧＡ’ｆ１６図才１７目Fig. 1 is a plan view of a mold according to the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a sectional view showing the stacked state of the molds, Fig. 4 is a surface view of the sand mold, and Fig. 5 is a sectional view of the mold. Its cross-sectional view, No. 6
7 is a partial sectional view showing another embodiment of the present invention, FIG. 8 is a partial sectional view of a laminated mold according to a different embodiment of the present invention, and FIG. 9 is a partial sectional view of the laminated mold according to a different embodiment of the present invention. Sand mold surface diagram, 1st
Fig. 0 is a sectional view thereof, Fig. 11 is a rear view thereof, Fig. 12 is a partial sectional view showing the laminated mold of Fig. 8 set in a horizontal centrifugal casting machine, and Fig. 13 is a cross-sectional view of the laminated mold of Fig. 8. FIG. 14 is a surface view of the sand mold, FIG. 15 is a sectional view thereof, FIG. 16 is a back view thereof, and FIG.
7 to 18 are cross-sectional views of molds according to the conventional casting method. Explanation of symbols (1)...Mold (2)...Hollow part (3)...
Product chamber (4)...Convex step part (5)...Concave part (
6)... Outer ring seat of the through hole (7)... Through hole (8
)...sand mold (9)...gap θ0)...lid mold (11)...molten metal distribution hole 02)...molten metal distribution room (13)...
)...Sand frame 04)...Bottom plate (J5)...(Rust (I6)...Injection cup (17)...Drive motor (]8)...Laminated mold (19)...・Inclination table (A)...Bell I-(2])...Rotating roller (2 snore...Winging IJ:, Me roller (C)...Injection box (2→..., to the bulkhead) ...to Onshunko)...
・1-Plate ta)... Convex step part of sand mold tb+... Concave part (C)... Runway (di... Hot water pool te+)
・・Recovery (a) ・・Conventional sprue rod th+・・・・
The hot water path (C)...the product. Patent application Masamiyuki Michihiro - 4 drawings O drawing drawings
Claims (4)
鋳型の各製品室内に金属溶湯が注湯されるようにしたこ
とを特徴とす゛る金型を使用したスタック鋳造法。(1) A stack casting method using a mold characterized in that molds each having product chambers arranged side by side on the outer periphery are stacked, and molten metal is poured into each product chamber of the laminated mold.
た金属溶湯が各金型の製品室内の砂型に順次流下して注
湯されるようにした特許請求の範囲第１項記載の金型を
使用したスタック鋳造法。(2) The molten metal poured into the lid-shaped dispensing chamber of the first stage of the laminated mold is sequentially poured into the sand mold in the product chamber of each mold. Stack casting method using the described mold.
した特許請求の範囲第２項記載の金型を使用したスタッ
ク鋳造法。(3) A stack casting method using the mold according to claim 2, in which the rotation of the drive motor is transmitted to the stacked mold.
けた積層鋳型にノ駆動モーターの回転を伝達しながら該
積層鋳型の中空部に注入した涌 金子溶湯が、上記湯堰孔から各金型の製品室内に順次注
湯されるようにした特許請求の範囲第１項記載の金型を
使用したスタック鋳造法。(4) The Wakuganeko molten metal injected into the hollow part of the laminated mold while transmitting the rotation of the drive motor to the laminated mold with hot water weir holes provided in the central hollow part of each mold and the partition wall of the product chamber is A stack casting method using the mold according to claim 1, wherein the metal is sequentially poured from the weir hole into the product chamber of each mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14002982A JPS5930461A (en) | 1982-08-11 | 1982-08-11 | Stack casting method using mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14002982A JPS5930461A (en) | 1982-08-11 | 1982-08-11 | Stack casting method using mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5930461A true JPS5930461A (en) | 1984-02-18 |
Family
ID=15259293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14002982A Pending JPS5930461A (en) | 1982-08-11 | 1982-08-11 | Stack casting method using mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5930461A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0441729U (en) * | 1990-08-07 | 1992-04-09 | ||
| WO2009014412A1 (en) * | 2007-07-25 | 2009-01-29 | Enrique Alvarado Murillo | Method and mould for stratified moulding with metalostatic pressure compensation |
| CN103909222A (en) * | 2014-03-17 | 2014-07-09 | 洛阳古城机械有限公司 | Method of reducing casting defects of automobile brake caliper stand |
| CN105215283A (en) * | 2015-10-16 | 2016-01-06 | 重庆市航丰机械有限公司 | Single-column type disc cast combination die |
| CN106077491A (en) * | 2016-08-09 | 2016-11-09 | 长沙金龙铸造实业有限公司 | A kind of casting moulding system and production method |
| CN108044039A (en) * | 2017-12-26 | 2018-05-18 | 无锡市蠡湖铸业有限公司 | It is stacked running gate system |
-
1982
- 1982-08-11 JP JP14002982A patent/JPS5930461A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0441729U (en) * | 1990-08-07 | 1992-04-09 | ||
| WO2009014412A1 (en) * | 2007-07-25 | 2009-01-29 | Enrique Alvarado Murillo | Method and mould for stratified moulding with metalostatic pressure compensation |
| CN103909222A (en) * | 2014-03-17 | 2014-07-09 | 洛阳古城机械有限公司 | Method of reducing casting defects of automobile brake caliper stand |
| CN105215283A (en) * | 2015-10-16 | 2016-01-06 | 重庆市航丰机械有限公司 | Single-column type disc cast combination die |
| CN106077491A (en) * | 2016-08-09 | 2016-11-09 | 长沙金龙铸造实业有限公司 | A kind of casting moulding system and production method |
| CN108044039A (en) * | 2017-12-26 | 2018-05-18 | 无锡市蠡湖铸业有限公司 | It is stacked running gate system |
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