JPS63278611A - Manufacture of special-shaped pipe by hot extrusion - Google Patents
Manufacture of special-shaped pipe by hot extrusionInfo
- Publication number
- JPS63278611A JPS63278611A JP10982287A JP10982287A JPS63278611A JP S63278611 A JPS63278611 A JP S63278611A JP 10982287 A JP10982287 A JP 10982287A JP 10982287 A JP10982287 A JP 10982287A JP S63278611 A JPS63278611 A JP S63278611A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- billet
- holes
- hot extrusion
- rod material
- 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
- 238000001192 hot extrusion Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Landscapes
- Extrusion Of Metal (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、長さ方向に平行に複数の孔を有する金属管、
あるいは偏芯した孔を有する金属管などの異形管を熱間
押出加工により製造する方法に関するものである。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a metal tube having a plurality of holes parallel to its length,
Alternatively, the present invention relates to a method of manufacturing a deformed tube such as a metal tube having an eccentric hole by hot extrusion.
第３図（ａ）に示すような長さ方向に平行に複数の孔を
有する異形管は、複数の液体や気体を送る場合などに使
用される。従来このような異形管を製造するには、丸棒
をドリル穿孔し、さらに、必要に応じて冷間引抜加工し
て細径にする方法があるが、丸棒に平行に穿孔すること
が困難であり、さらに、長尺材の製造ができないという
問題がある。また、第３図（ｂ）に示すような偏芯した
孔を有する異形管は、熱間押出加工等により製造され、
これを切断して偏芯カムに使用されるが、孔の位置の精
度に問題があり、また、押出材の反りや曲りなど形状不
良等にも問題があった。A deformed tube having a plurality of holes parallel to its length as shown in FIG. 3(a) is used when sending a plurality of liquids or gases. Conventionally, to manufacture such irregularly shaped pipes, there is a method of drilling a round bar and then cold-drawing it if necessary to make it smaller in diameter, but it is difficult to drill holes parallel to the round bar. Furthermore, there is a problem that it is not possible to manufacture long materials. In addition, a deformed tube having an eccentric hole as shown in FIG. 3(b) is manufactured by hot extrusion, etc.
This is cut and used for eccentric cams, but there are problems with the accuracy of the hole positions, and there are also problems with shape defects such as warping and bending of the extruded material.
本発明は、長さ方向に平行に複数の孔を有する異形管、
あるいは偏芯した孔を有する異形管を、歩留まり良く、
精度良く、かつ能率的に製造することを目的とする。The present invention provides a deformed tube having a plurality of holes parallel to the length direction,
Alternatively, we can produce irregularly shaped tubes with eccentric holes with good yield.
The purpose is to manufacture with high precision and efficiency.
〔問題点を解決するための手段・作用〕本発明は、円柱
形ビレットの長さ方向に平行に孔をあけ、線孔に棒材お
よびガラス粉を充填させて複合ビレットとなし、該複合
ビレットを加熱して熱間押出加工し、押出材から前記棒
材およびガラスを除去することを特徴とする特
以下に、長さ方向に２個の孔を有する異形管の製造を例
として本発明を説明する。[Means and effects for solving the problems] The present invention provides a composite billet by making holes parallel to the length direction of a cylindrical billet and filling the holes with a wire rod and glass powder. The present invention will be described by taking as an example the manufacture of a deformed tube having two holes in the length direction. explain.
第１図に示すように、円柱形ビレット１の長さ方向に孔
をあけ、線孔に棒材２およびガラス粉９を充填させて複
合ビレット３となし、これを加熱し、第２図のようにコ
ンテナー５内に挿入し、ステム６によりダイス７を通し
て熱間押出加工し、押出材８から棒材２およびガラスを
除去する。As shown in Fig. 1, holes are made in the length direction of the cylindrical billet 1, and the wire holes are filled with rod material 2 and glass powder 9 to form a composite billet 3, which is heated and shown in Fig. 2. The bar 2 and glass are inserted into a container 5 as shown in FIG.
複合ビレット３の孔に棒材２およびガラス粉９を充填さ
せるには、第１図（ｂ）のように、円柱形ビレット１の
孔を貫通させないでおき、孔内に棒材２を挿入しガラス
粉９を詰めて蓋４をする手段、あるいは、第１図（ｃ）
のように、円柱形ビレット１の孔を貫通させて、孔内に
棒材２を挿入しガラス粉９を詰め両端に蓋４をする手段
などを用いることができる。In order to fill the holes in the composite billet 3 with the rod 2 and the glass powder 9, as shown in FIG. 1(b), the holes in the cylindrical billet 1 are not penetrated, and the rods 2 are inserted into the holes. Means for filling glass powder 9 and closing the lid 4, or as shown in Fig. 1(c)
As shown in FIG. 1, it is possible to use a method of penetrating a hole in a cylindrical billet 1, inserting a rod 2 into the hole, filling it with glass powder 9, and capping both ends with lids 4.
棒材２は、円柱形ビレット１と同じ材料でも、異なる材
料でもよい。The bar 2 may be made of the same material as the cylindrical billet 1 or may be made of a different material.
このように棒材２およびガラス粉９が充填された複合ビ
レット３を加勢し熱間押出加工すると、複合ビレット３
内でガラスは流動状態になるがビレットの変形圧力に抗
し、長さ方向に一様に棒材およびガラスの充填された押
出材８が得られる。When the composite billet 3 filled with the bar material 2 and the glass powder 9 is pressed and hot extruded, the composite billet 3
Although the glass becomes fluid inside, it resists the deformation pressure of the billet, and an extruded material 8 filled with rod material and glass uniformly in the length direction is obtained.
熱間押出後に押出材８から棒材２およびガラスを除去す
るには、ガラスが流動状態になっているうちに押出材８
の両端を開放して棒材２を引き出し、孔内に圧力をかけ
、あるいは押出材８を傾斜させてガラスを流出させる手
段、また、押出材８を冷却したのち棒材をガラスととも
に引き出す手段、さらに、押出材８を冷却してガラスが
固化したのち押出材８を矯直してガラスを破砕し棒材と
ともにガラスを機械的に除去する手段などを用いること
ができる。To remove the bar 2 and glass from the extruded material 8 after hot extrusion, remove the extruded material 8 while the glass is in a fluid state.
A means for opening both ends of the bar 2 to draw out the bar 2, applying pressure in the hole or tilting the extruded material 8 to cause the glass to flow out, and a means for drawing out the bar together with the glass after cooling the extruded material 8. Further, it is possible to use a method of cooling the extruded material 8 to solidify the glass, then straightening the extruded material 8, crushing the glass, and mechanically removing the glass together with the rod material.
棒材およびガラスを除去して得られた異形管は通常の精
整工程を経て製品となる。また、この製品をさらに引抜
きあるいは絞り加工して、より細径の異形管とすること
もできる。The irregularly shaped tube obtained by removing the rod and glass goes through the usual refining process and becomes a product. In addition, this product can be further drawn or drawn to produce a deformed tube with a smaller diameter.
５４５（： （普通鋼）からなる直径１７Ｏｎ＋、長さ
４００日の円柱形ビレットの長さ方向に平行に直径４０
０の孔２個を２０ｕ間隔で、第１図（ｂ）のように貫通
させずにあけ、５４５Ｃ（普通鋼）からなる直径２０ｍ
の棒材を挿入し、ウィンドウガラスからなるガラス粉を
詰め、５４５Ｇの蓋をして加熱し、直径５０鶴に熱間押
出加工した。これをローラー矯正で真直にし、両端を切
断してガラスを露出させ、棒材とともにガラスを機械的
に除去した。その結果、直径５０鶴、長さ約５ｍ、孔の
直径１２＋ａ＋、孔の間隔５ｆｌの２孔異形管が得られ
た。孔の位置およびサイズは設計どおりで長さ方向の変
動もなく、押出後の形状も良好であった。545 (: A cylindrical billet with a diameter of 17 On+ and a length of 400 days made of (common steel)
Drill two 0 holes at 20u intervals without penetrating them as shown in Figure 1(b), and make a 20m diameter hole made of 545C (common steel).
A bar material of 100 mm was inserted, filled with glass powder made of window glass, covered with a 545G lid, heated, and hot extruded into a diameter of 50 mm. This was straightened by roller straightening, both ends were cut to expose the glass, and the glass was mechanically removed together with the rod. As a result, a two-hole irregular tube with a diameter of 50 mm, a length of about 5 m, a hole diameter of 12+a+, and a hole spacing of 5 fl was obtained. The position and size of the holes were as designed, there was no variation in the length direction, and the shape after extrusion was also good.
本発明によれば、マンドレルを使用することなく異形管
の熱間押出加工ができるので、複数の孔を有する管や、
断面内で偏芯した孔を有する管などの異形管を、孔の位
置の精度よく、かつ形状もよく製造できる。また、従来
法のようなドリル穿孔が不要なので、高歩留まり高能率
で長尺の異形管を製造することができる。According to the present invention, hot extrusion processing of deformed tubes can be performed without using a mandrel, so that tubes having multiple holes,
It is possible to manufacture irregularly shaped tubes, such as tubes having holes that are eccentric in their cross section, with good hole position accuracy and good shape. Further, since drilling unlike the conventional method is not required, long irregularly shaped pipes can be manufactured with high yield and high efficiency.
第１図および第２図は本発明法を説明する図、第３図は
本発明の対象とする異形管の例を示す図である。
１：円柱形ビレット ２：棒材
３：複合ビレット ４：蓋1 and 2 are diagrams for explaining the method of the present invention, and FIG. 3 is a diagram showing an example of a deformed tube to which the present invention is applied. 1: Cylindrical billet 2: Bar material 3: Composite billet 4: Lid
Claims (1)
材およびガラス粉を充填させて複合ビレットとなし、該
複合ビレットを加熱して熱間押出加工し、押出材から前
記棒材およびガラスを除去することを特徴とする熱間押
出による異形管の製造法。Holes are drilled parallel to the length direction of the cylindrical billet, the holes are filled with rod material and glass powder to form a composite billet, the composite billet is heated and hot extruded, and the rod material is extracted from the extruded material. and a method for producing a deformed tube by hot extrusion, characterized by removing glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982287A JPS63278611A (en) | 1987-05-07 | 1987-05-07 | Manufacture of special-shaped pipe by hot extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982287A JPS63278611A (en) | 1987-05-07 | 1987-05-07 | Manufacture of special-shaped pipe by hot extrusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63278611A true JPS63278611A (en) | 1988-11-16 |
Family
ID=14520087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10982287A Pending JPS63278611A (en) | 1987-05-07 | 1987-05-07 | Manufacture of special-shaped pipe by hot extrusion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63278611A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5601857A (en) * | 1990-07-05 | 1997-02-11 | Konrad Friedrichs Kg | Extruder for extrusion manufacturing |
| JP2001247372A (en) * | 2000-03-03 | 2001-09-11 | Pilot Precision Co Ltd | Hollow rodlike body composed of ceramic, metal or carbon and method for producing the same |
| CN103084426A (en) * | 2013-01-23 | 2013-05-08 | 山西太钢不锈钢股份有限公司 | Manufacturing method of stainless steel special pipe for nuclear fusion reactor |
| CN106938285A (en) * | 2017-04-28 | 2017-07-11 | 山西太钢不锈钢股份有限公司 | A kind of manufacture method of stainless steel square tube |
-
1987
- 1987-05-07 JP JP10982287A patent/JPS63278611A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5601857A (en) * | 1990-07-05 | 1997-02-11 | Konrad Friedrichs Kg | Extruder for extrusion manufacturing |
| JP2001247372A (en) * | 2000-03-03 | 2001-09-11 | Pilot Precision Co Ltd | Hollow rodlike body composed of ceramic, metal or carbon and method for producing the same |
| CN103084426A (en) * | 2013-01-23 | 2013-05-08 | 山西太钢不锈钢股份有限公司 | Manufacturing method of stainless steel special pipe for nuclear fusion reactor |
| CN106938285A (en) * | 2017-04-28 | 2017-07-11 | 山西太钢不锈钢股份有限公司 | A kind of manufacture method of stainless steel square tube |
| CN106938285B (en) * | 2017-04-28 | 2018-12-28 | 山西太钢不锈钢股份有限公司 | A kind of manufacturing method of stainless steel square tube |
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