JPS6060390A - Molding material for casting hollow tubular section and casting hollow tubular section casting method using said molding material - Google Patents
Molding material for casting hollow tubular section and casting hollow tubular section casting method using said molding materialInfo
- Publication number
- JPS6060390A JPS6060390A JP58166742A JP16674283A JPS6060390A JP S6060390 A JPS6060390 A JP S6060390A JP 58166742 A JP58166742 A JP 58166742A JP 16674283 A JP16674283 A JP 16674283A JP S6060390 A JPS6060390 A JP S6060390A
- Authority
- JP
- Japan
- Prior art keywords
- casting
- hollow tubular
- tube
- molding material
- tubular section
- 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
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は鋳物中空管状部の成形材及びその成形材を用い
た鋳物中空管状部鋳造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molding material for hollow tubular castings and a method for casting hollow tubular castings using the molding material.
従来鋳物の肉厚部に所望の形状を有する中空部を形成す
る場合、第１図に示すように可撓性を有する撓み管２を
鋳型１内へ挿通し、ケレンと称さ−１−−−＋
れる固定用治具３により撓み管２を定位置に支持し、注
湯口４から金属を溶解してなるＷＩ３ｉＩを注湯した後
撓み管２を抜きとるようにした中空管状部鋳造法が知ら
れている。固定用冶具３を用いるのは、撓み管２内体が
本来可撓性を有しその形状を所望の形状に保ち得ないか
らである。Conventionally, when forming a hollow part having a desired shape in a thick part of a casting, a flexible flexible tube 2 is inserted into a mold 1 as shown in FIG. + A hollow tubular part casting method is known in which the flexible tube 2 is supported in a fixed position by a fixing jig 3, and the flexible tube 2 is pulled out after pouring WI3iI made of melted metal from the pouring spout 4. It is being The fixing jig 3 is used because the inner body of the flexible tube 2 is inherently flexible and cannot be kept in a desired shape.
しかしながら、上述した従来の鋳造法では固定用冶具３
が鋳ぐるまれてしまい、鋳造後撓み管２を抜き取った後
に固定用冶具３と鋳造金属との間にＷＡ間が生じる虞れ
があり、鋳物の使用中にその中空部を通過する空気や水
がその隙間から外部へ漏れ出る可能性があるという欠点
があった。However, in the conventional casting method described above, the fixing jig 3
If the flexible tube 2 is removed after casting, there is a risk that a WA gap will be created between the fixing jig 3 and the cast metal, and air or water passing through the hollow part during use of the casting may occur. There was a drawback that there was a possibility of leakage to the outside through the gap.
また、第１図に破線で示すように注湯時に溶解金属の浮
力によって、撓み管２の固定用冶具３で固定されない部
分が変動し所定の形状に保持し得ないという欠点があっ
た。In addition, as shown by the broken line in FIG. 1, the portion of the flexible tube 2 that is not fixed by the fixing jig 3 fluctuates due to the buoyancy of the molten metal during pouring, making it impossible to maintain it in a predetermined shape.
本発明は従来の鋳造法の欠点に鑑み、固定用冶具を用い
る必要のない成形材及びその成形材を用いた所定の形状
の中空管状部を有する鋳物を得ることができる鋳物中空
管状部鋳造法の提供を目的２−
とする。In view of the drawbacks of conventional casting methods, the present invention provides a molded material that does not require the use of a fixing jig, and a method for casting a hollow tubular part using the molded material, which makes it possible to obtain a casting having a hollow tubular part of a predetermined shape. Purpose 2- is to provide the following.
かかる目的の本発明の要旨とするところは、所定形状に
形成された塑性を有する管体と咳管体外周に配置した撓
み管からなる鋳物中空管状部の成形材及び所定形状に形
成された塑性を有する管体と咳管体外周に配置した撓み
管とからなる成形材を鋳型内に挿通し、前記管体内へ冷
却水を通しながら溶湯を鋳型内へ注湯した後、管体及び
撓み管を抜き取ることを特徴とする成形材を用いた鋳物
中空管状部鋳造法に存する。The gist of the present invention for such purpose is to provide a molded material for a cast hollow tubular part consisting of a tubular body having plasticity formed into a predetermined shape and a flexible tube arranged around the outer periphery of the cough tube body, and a plasticity tube formed into a predetermined shape. A molded material consisting of a tubular body having a diameter and a flexible tube placed around the outer periphery of the cough tube body is inserted into the mold, and after pouring the molten metal into the mold while passing cooling water into the tube body, the tube body and flexible tube are inserted into the mold. The present invention relates to a method for casting a hollow tubular part using a molded material, which is characterized by extracting.
以下に本発明の実施例を第２図乃至第５図を参照して説
明する。Embodiments of the present invention will be described below with reference to FIGS. 2 to 5.
図中１０は成形材であり、該成形材１０は鋼管の如（塑
性を有する材質をもって形成した管体１１と、コイル状
に連続成形された撓み管１２とからなるものである。In the figure, numeral 10 denotes a molded material, and the molded material 10 consists of a tubular body 11 made of a material having plasticity, such as a steel pipe, and a flexible tube 12 continuously formed into a coil shape.
撓み管１２は可撓性を有するため一定の形状に保持する
ことは困難であるが、その中空部に管体１１を備えてい
るため、撓み管１２の形状は管体１１の形状に対応して
所定の形状に保持される。Since the flexible tube 12 is flexible, it is difficult to maintain it in a fixed shape, but since the tube body 11 is provided in the hollow part, the shape of the flexible tube 12 corresponds to the shape of the tube body 11. and held in a predetermined shape.
したがって、第２図に示すように管体１１の形状を直管
状とした場合には、撓み管１２も管体１１に対応して直
管状に保持されることになる。Therefore, when the shape of the tube 11 is made into a straight tube as shown in FIG. 2, the flexible tube 12 is also held in a straight tube shape corresponding to the tube 11.
また、第３図に示すように成形材１０′の管体１１′を
曲管状となした場合には、撓み管１２′も曲管状に保持
されることになる。Further, when the tube body 11' of the molded material 10' is formed into a curved tube shape as shown in FIG. 3, the flexible tube 12' is also held in a curved tube shape.
尚、撓み管１２．１２′はコイル状のものに限定される
ものではなく、図示してないが外表面に螺旋溝を有する
螺旋管や帯状材を螺旋状に巻回し中空筒状に形成したも
のでもよい。Incidentally, the flexible tube 12, 12' is not limited to a coil-shaped one, but may be a spiral tube having a spiral groove on the outer surface or a band-shaped material spirally wound to form a hollow cylindrical shape (not shown). It can be anything.
次に前記成形材１０′を用いて中空管状部ξ有する鋳物
を鋳造する方法を説明する。Next, a method of casting a casting having a hollow tubular portion ξ using the molded material 10' will be explained.
第４図に示すように、鋳型１３内に所定の曲管状に形成
された成形材１０′を挿通し、その一方の端部に給水ホ
ース１４を、他方の端部に排水ホース１５をそれぞれ接
続する。As shown in FIG. 4, a molded material 10' formed into a predetermined curved tube shape is inserted into the mold 13, and a water supply hose 14 is connected to one end of the molded material 10', and a drainage hose 15 is connected to the other end of the molded material 10'. do.
次に給水ホース１４から成形材１０′の管体１１′内へ
冷却水を給水するとともに、鋳型１３の注湯口１６から
溶湯を注湯する。Next, cooling water is supplied from the water supply hose 14 into the pipe body 11' of the molded material 10', and molten metal is poured from the pouring port 16 of the mold 13.
管体１１′内へ給水する理由は、撓み管１２−ａ −
及び管体１１′が注湯に伴って高温にさらされて軟化し
、溶湯の浮力によりその形状が変化してしまうことを防
止するためである。The reason for supplying water into the pipe body 11' is to prevent the flexible pipe 12-a- and the pipe body 11' from being exposed to high temperatures and softening due to pouring of molten metal, and from changing their shape due to the buoyancy of the molten metal. This is to do so.
鋳型１３内への注湯完了後、撓み管１２′及び管体１１
′を鋳型１３から抜き取り脱型することによって内部に
中空管状部１８を有する鋳物１７を鋳造するものである
。After pouring the metal into the mold 13, the flexible pipe 12' and the pipe body 11
By extracting the mold 13 from the mold 13 and removing the mold, a casting 17 having a hollow tubular part 18 inside is cast.
以上の説明から明らかなように本発明の鋳物の中空管状
部の成形材は、塑性を有する管体の外周に撓み管を配置
してなるものであるから、管体を所定形状に形成するこ
とによって撓み管も所定の形状に保持されることになり
、鋳物中空管状部を有する鋳物の鋳造に際し、従来の如
く固定用冶具を用いる必要がない利点がある。As is clear from the above description, the molded material for the hollow tubular part of the casting of the present invention is made by arranging a flexible tube around the outer periphery of a tubular body having plasticity, and therefore it is not necessary to form the tubular body into a predetermined shape. As a result, the flexible tube is also held in a predetermined shape, and there is an advantage that there is no need to use a fixing jig as in the past when casting a casting having a hollow tubular part.
また、本発明の鋳物中空管状部の鋳造法によれば、成形
材の固定のために固定用冶具を用いないので、鋳造され
た鋳物の内部に従来の鋳物の如き隙間を生ずることがな
く、したがって、中空管状部に空気や水を通した際にも
その漏出のおそれは全く無い。Furthermore, according to the casting method of the hollow tubular part of the present invention, no fixing jig is used to fix the molded material, so there is no gap created inside the cast product unlike in conventional castings. Therefore, even when air or water is passed through the hollow tubular part, there is no risk of leakage.
４−
さらに、塑性変形させた管体によって所定の形状に撓み
管を保持するものであるから、鋳型内への注湯時におけ
る成形材の位置ずれもなく、中空管状部を高精度に仕上
げることが可能となったものである。4- Furthermore, since the flexible tube is held in a predetermined shape by the plastically deformed tube body, there is no displacement of the molded material during pouring into the mold, and the hollow tubular part can be finished with high precision. is now possible.
第１図は従来の鋳物中空管状部を鋳造する方法を示す断
面図、第２図は本発明の成形材の一実施例を示す断面図
、第３図は同上の他の実施例を示す断面図、第４図は本
発明の鋳造法の一実施例を示す断面図、第５図は第４図
に示す方法で鋳造した鋳物の断面図である。
１０．１０”・・・・・・成形材、１１．１１−・・・
・・・管体、１２．１２−・・・・・・撓み管、１３・
・・・・・鋳型、１７・・・・・・鋳物、１８・・・・
・・中空管状部。
特 許 出 願 人
三協オイルレス工業株式会社Fig. 1 is a sectional view showing a conventional method for casting a hollow tubular part, Fig. 2 is a sectional view showing an embodiment of the molded material of the present invention, and Fig. 3 is a sectional view showing another embodiment of the same. 4 are cross-sectional views showing an embodiment of the casting method of the present invention, and FIG. 5 is a cross-sectional view of a casting cast by the method shown in FIG. 4. 10.10"...Molding material, 11.11-...
...Pipe body, 12.12-...Flexible pipe, 13.
...mold, 17...casting, 18...
...Hollow tubular part. Patent application Hitosankyo Oilless Industry Co., Ltd.
Claims (1)
外周に配置した撓み管とからなる鋳物中空管状部の成形
材。 ■ 所定形状に形成された塑性を有する管体と咳管体外
周に配置した撓み管とからなる成形材を鋳型内に挿通し
、前記管体内へ冷却水を通しながら溶湯を注湯した後管
体及び撓み管を抜き取ることを特徴とする成形材を用い
た鋳物中空管状部鋳造法。(1) A molded material for a cast hollow tubular part consisting of a tubular body having plasticity formed into a predetermined shape and a flexible tube arranged around the outer periphery of the tubular body. ■ A molded material consisting of a plastic tube formed into a predetermined shape and a flexible tube placed around the outer periphery of the tube is inserted into the mold, and the molten metal is poured into the tube while cooling water is passed through the tube. A method for casting a hollow tubular part using a molded material, characterized in that the body and flexible tube are extracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58166742A JPS6060390A (en) | 1983-09-12 | 1983-09-12 | Molding material for casting hollow tubular section and casting hollow tubular section casting method using said molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58166742A JPS6060390A (en) | 1983-09-12 | 1983-09-12 | Molding material for casting hollow tubular section and casting hollow tubular section casting method using said molding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6060390A true JPS6060390A (en) | 1985-04-06 |
| JPS6154993B2 JPS6154993B2 (en) | 1986-11-26 |
Family
ID=15836904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58166742A Granted JPS6060390A (en) | 1983-09-12 | 1983-09-12 | Molding material for casting hollow tubular section and casting hollow tubular section casting method using said molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6060390A (en) |
-
1983
- 1983-09-12 JP JP58166742A patent/JPS6060390A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6154993B2 (en) | 1986-11-26 |
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