JPH02187216A - Tension straightening method for high-strength material - Google Patents
Tension straightening method for high-strength materialInfo
- Publication number
- JPH02187216A JPH02187216A JP489689A JP489689A JPH02187216A JP H02187216 A JPH02187216 A JP H02187216A JP 489689 A JP489689 A JP 489689A JP 489689 A JP489689 A JP 489689A JP H02187216 A JPH02187216 A JP H02187216A
- Authority
- JP
- Japan
- Prior art keywords
- strength
- strength material
- annular furnace
- straightening
- tension
- 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
- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000012937 correction Methods 0.000 description 9
- 229910001069 Ti alloy Inorganic materials 0.000 description 5
- 230000001788 irregular Effects 0.000 description 5
- 229910000601 superalloy Inorganic materials 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001192 hot extrusion Methods 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、チタン合金、超合金等から成る高強度のため
常温では矯正が困難な異形断面形材等の、曲り、捻じれ
及び形状不良を矯正する方法に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention is directed to the prevention of bending, twisting and shape defects of irregular cross-section materials made of titanium alloys, superalloys, etc. that are difficult to straighten at room temperature due to their high strength. It concerns a method for correcting.
（従来の技術）
一般に、熱間押出法で製造された金属の異形断面形材は
、押出中に断面各部分での変形抵抗や押出ダイスとの摩
擦抵抗が不均一となり、曲りや捻じれ及び狙い寸法に対
する誤差等がもとで形状不良が生じるため、引張矯正機
等を用いた形状矯正を行って製品とされるのが普通であ
る。(Prior art) In general, metal irregular cross-sectional sections manufactured by hot extrusion have uneven deformation resistance and frictional resistance with the extrusion die during extrusion at various parts of the cross section, resulting in bending, twisting, and Since shape defects occur due to errors with respect to target dimensions, it is common to correct the shape using a tensile straightening machine or the like to produce a product.
しかし、チタン合金、超合金等から成る異形断面形材は
高強度のため常温では引張矯正が困難である。これらの
矯正に対し、従来からプレス矯正或いはローラー矯正等
の手段が実施されて来たが、所要の矯正効果を得るのが
困難であった。However, irregular cross-sectional shapes made of titanium alloys, superalloys, etc. have high strength and are difficult to tensile straighten at room temperature. For these corrections, methods such as press correction or roller correction have been used, but it has been difficult to obtain the desired correction effect.
他の矯正方法として、両端チャッキング通電加熱引張矯
正、或いは特開昭８３−１８８２２５号公報のような分
割金型による加圧加熱矯正法等があるが、設備制約、矯
正能率低下及び矯正コスト高の問題があり実現は困難で
あった。Other straightening methods include electrified heating tensile straightening with both ends chucked, and pressurized heating straightening using a split mold as disclosed in Japanese Patent Application Laid-Open No. 83-188225, but these methods suffer from equipment limitations, reduced straightening efficiency, and high straightening costs. This was difficult to realize due to the following problems.
（発明が解決しようとする課題）
本発明は、チタン合金、超合金等から成る、高強度のた
め常温では矯正が困難な異形断面形材等の曲り、捻じれ
及び形状不良を高能率かつ低コストで矯正し、所要の規
格を満足する製品を製造する引張矯正法を提供するもの
である。(Problems to be Solved by the Invention) The present invention aims to efficiently and efficiently correct bends, twists, and shape defects of irregular cross-sectional sections made of titanium alloys, superalloys, etc. that are difficult to straighten at room temperature due to their high strength. The present invention provides a tensile straightening method that enables cost-effective straightening and manufactures products that meet required specifications.
（課題を解決するための手段・作用）
本−発明は、高強度材を環状炉に貫通させ、該環状炉を
該高強度材に沿わせて走行させることにより、該高強度
材を加熱するとともに、該高強度材に張力を付加するこ
とを特徴とする高強度材の引張矯正法である。(Means/effects for solving the problem) The present invention heats the high-strength material by passing the high-strength material through an annular furnace and running the annular furnace along the high-strength material. This is also a tensile straightening method for high-strength materials, which is characterized by applying tension to the high-strength materials.
本発明において、高強度材とはチタン合金、超合金等の
変形抵抗が大きく常温では矯正が困難な材料をいう。In the present invention, high-strength materials refer to materials such as titanium alloys and superalloys that have high deformation resistance and are difficult to straighten at room temperature.
以下、第１図により本発明法を説明する。The method of the present invention will be explained below with reference to FIG.
まず、高強度材１を環状炉３に貫通させ、両端をチャッ
キング工具２を介し引張矯正機に固定する。この時、高
強度材１とチャッキング工具２はボルトを用いて連結し
てもよく、また溶接付等の手段を用いてもよい。First, the high-strength material 1 is passed through the annular furnace 3, and both ends thereof are fixed to a tension straightening machine via the chucking tool 2. At this time, the high-strength material 1 and the chucking tool 2 may be connected using bolts, or welding or other means may be used.
環状炉３としては、高強度材１の断面形状に応じて加熱
用ガスバーナーを適宜配置したもの、抵抗発熱体を適宜
配置したもの、誘導加熱によるもの等、対象材の材質や
形状に応じて採用することう（できる。The annular furnace 3 may be one in which heating gas burners are appropriately arranged according to the cross-sectional shape of the high-strength material 1, one in which resistance heating elements are appropriately arranged, one by induction heating, etc., depending on the material and shape of the target material. It is possible to adopt.
該環状炉３の入側および出側には走行用ロール４が取付
けられ、更に環状炉３にはワイヤーローブ５が結索され
、前後面からウィンチでワイヤーロープ５を巻き取り、
巻き出すことにより、高強度材１をレールとして環状炉
３を走行させながら、高強度材１を全長に渡って均一加
熱できるようになっている。Running rolls 4 are attached to the entrance and exit sides of the annular furnace 3, and wire lobes 5 are tied to the annular furnace 3, and a winch is used to wind the wire rope 5 from the front and back sides.
By unrolling, the high-strength material 1 can be uniformly heated over its entire length while the annular furnace 3 is run using the high-strength material 1 as a rail.
また、高強度材１に沿ってレールを敷設し、該レール上
で環状炉３を走行させてもよい。さらに、環状炉３の走
行はワイヤーローブの巻き取りによる他、電動により環
状炉自身が自走する方式としてもよい。Alternatively, a rail may be laid along the high-strength material 1 and the annular furnace 3 may run on the rail. Further, the annular furnace 3 may be moved by winding a wire lobe or may be driven by the annular furnace itself by electric power.
このような本発明法によれば、被矯正祠としての高強度
材１が加熱されて、強度が低下した状態で容品に引張矯
正され、しかも、加熱は環状炉３を高強度材１の全長に
わたって走行させることにより均一に加熱する他、特に
強い矯正が必要な位置に停止させて局部矯正することも
できる。According to the method of the present invention, the high-strength material 1 as the straightening target is heated and tension-straightened into a container with its strength reduced. In addition to uniformly heating the device by running it over the entire length, it can also be stopped at a position where particularly strong correction is required to perform local correction.
（実 施 例）
熱間押出加工により製造した第２図（ａ）に示す断面形
状で長さ６．８ｍのＴＩ −６ＡＩ？ −４Ｖ合金形
材を、第１図に示す本発明法により矯正した。(Example) TI-6AI manufactured by hot extrusion and having a cross-sectional shape shown in FIG. 2(a) and a length of 6.8 m? A -4V alloy profile was straightened by the method of the present invention as shown in FIG.
矯正前の曲がりは１８ａｍ／ １５２４ｍｍ （５（’
ｅｅｌ）長さ、捻じれは２１ｍｍ／ ３０４８ｍｍ （
ｌｏｆ’ｅｅＬ）長さであった。The bend before correction is 18am/1524mm (5('
eel) Length and twist are 21mm/3048mm (
lof'eeL) length.
高強度材１の両端部に、直径１５ｍの孔を各６ケ機械穿
孔し、２００ｔｏｎ引張矯正機に取付けたチャッキング
工具に、Ｍ１４のＣｒ−Ｍｏ製ボルト８６本を用い連結
した。通常、チャッキング工具には歯型を加工しておき
、これを矯正材と噛み合わせてチャッキングするが、Ｔ
Ｉ −６Ａｆｉ −４Ｖ合金は九強度（常温引張強度
１００ｋｇ、’ｏ１前後）のため噛み合わせが不可能で
あり、ボルトによる連結方法を行った。Six holes each having a diameter of 15 m were machined at both ends of the high-strength material 1, and the holes were connected to a chucking tool attached to a 200 ton tension straightening machine using 86 M14 Cr-Mo bolts. Normally, the chucking tool has a tooth pattern machined into it, and the teeth are engaged with the orthodontic material for chucking.
Since the I-6Afi-4V alloy has a nine-strength strength (room temperature tensile strength of 100 kg, around 'o1), interlocking was impossible, so a bolt-based connection method was used.
つぎに、チャッキング工具及びボルトにより２００ｔｏ
ｎ引張矯正機に取付けられた高強度Ｊｒ４１に環状炉３
を取付けた。Next, use the chucking tool and bolt to tighten the
Annular furnace 3 is attached to the high-strength Jr41 attached to the n tension straightening machine.
I installed it.
環状炉３は縦割形状で、外周に設けた蝶番により半開す
る方式になっており、高強度＋４１を中心に包みこむよ
うに取付けた。The annular furnace 3 has a vertically split shape, and is half-opened by a hinge provided on the outer periphery, and is attached so as to wrap around the high-strength +41 material.
環状炉３の入側および出側には、高強度材１の形状に応
じて位置決めできる走行用ロールが取付けられており、
高強度材１をレールとして環状炉３が走行できるように
なっている。At the entrance and exit sides of the annular furnace 3, running rolls are installed that can be positioned according to the shape of the high-strength material 1.
An annular furnace 3 can run using high-strength materials 1 as rails.
環状炉３の走行は環状炉３にワイヤーロープ５を結索し
ておき、前後面から手動ウィンチでワイヤーローブ５を
巻き取ることにより行なった。The traveling of the annular furnace 3 was carried out by tying a wire rope 5 to the annular furnace 3 and winding the wire rope 5 from the front and rear sides with a manual winch.
環状炉３にはプロパンガスバーナーを円周上に５本取付
けてあり、高強度材１を４００℃前後に加熱した。プロ
パンガスバーナーは環状炉３の円周に沿って移動できる
ようになっており、高強度材１の厚肉部分を集中的に加
熱し、肉厚が不均一な高強度材１に対しても均一な加熱
が得られるように考慮した。Five propane gas burners were installed around the circumference of the annular furnace 3, and the high-strength material 1 was heated to around 400°C. The propane gas burner can move along the circumference of the annular furnace 3, and can intensively heat the thick part of the high-strength material 1, even for high-strength materials 1 with uneven wall thickness. Care was taken to ensure uniform heating.
つぎに、環状炉３を高強度材１に沿って前後に走行させ
全長を均一に加熱した。このように環状炉３を走行させ
ながら加熱すると、高強度材１の薄肉部が冷却されるこ
と無く、同−断面内でも均一な加熱が得られる。Next, the annular furnace 3 was run back and forth along the high-strength material 1 to uniformly heat the entire length. When the annular furnace 3 is heated while running in this manner, the thin wall portion of the high-strength material 1 is not cooled, and uniform heating can be obtained even within the same cross section.
加熱することで、高強度材１の強度は低下して来るので
、あとは通常の低強度材を矯正するごとく引張矯正を行
い形状矯正を完了した。Since the strength of the high-strength material 1 decreases due to heating, the shape correction was completed by performing tensile straightening as with ordinary low-strength materials.
矯正後の曲がりは１．１ｍｍ／ １５２４ｍ＋ｉ （５
ｆｓｅｔ）長さ、捻じれは２．１ｍ＋ｓ／３０４８ｎｎ
（１０ｆｃｃｔ）長さとなり、曲がり及び捻じれの許
容範囲をクリアーした。The bend after correction is 1.1mm/1524m+i (5
fset) length, twist is 2.1m+s/3048nn
(10 fcct), clearing the allowable range for bending and twisting.
また、第２図（ｂ） 、 ＣＣ’）に示す断面形状の高
強度形材についても同様の効果が得られた。Furthermore, similar effects were obtained with the high-strength section having the cross-sectional shape shown in FIG. 2(b), CC').
（発明の効果）
本発明によれば、これまで矯正が困難で安定して製造で
きなかったチタン合金、超合金等からなる高強度異形断
面形材を能率よく、低コストで、かつ安定して製造する
ことができる。(Effects of the Invention) According to the present invention, high-strength irregular cross-sectional shapes made of titanium alloys, superalloys, etc., which have been difficult to straighten and could not be manufactured stably, can be produced efficiently, at low cost, and stably. can be manufactured.
第１図は本発明法の説明図、第２図（ａ） 、 （Ｂ）
及び（ｅ）は本発明法の実施例に使用した高強度材の断
面形状を示す図である。
１：高強度材 ２：チャッキング工具３：環状
炉 ４：走行用ロール５：ワイヤーローブ
第１図
５： フイＸ灯−２０
代 理 人 弁理士 茶野木 立 失策２図
（α〕
＜ｂ）
（Ｃ）Figure 1 is an explanatory diagram of the method of the present invention, Figure 2 (a), (B)
and (e) is a diagram showing a cross-sectional shape of a high-strength material used in an example of the method of the present invention. 1: High-strength material 2: Chucking tool 3: Annular furnace 4: Running roll 5: Wire robe Figure 1 5: Fui (C)
Claims (1)
沿わせて走行させることにより、該高強度材を加熱する
とともに、該高強度材に張力を付加することを特徴とす
る高強度材の引張矯正法。The high-strength material is passed through an annular furnace and the annular furnace is run along the high-strength material, thereby heating the high-strength material and applying tension to the high-strength material. Tensile straightening method for high strength materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP489689A JPH02187216A (en) | 1989-01-13 | 1989-01-13 | Tension straightening method for high-strength material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP489689A JPH02187216A (en) | 1989-01-13 | 1989-01-13 | Tension straightening method for high-strength material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02187216A true JPH02187216A (en) | 1990-07-23 |
Family
ID=11596433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP489689A Pending JPH02187216A (en) | 1989-01-13 | 1989-01-13 | Tension straightening method for high-strength material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02187216A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6077369A (en) * | 1994-09-20 | 2000-06-20 | Nippon Steel Corporation | Method of straightening wire rods of titanium and titanium alloy |
| CN110293143A (en) * | 2019-07-02 | 2019-10-01 | 太原科技大学 | A kind of titanium alloy profile hot pull apparatus for shaping and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220220A (en) * | 1986-03-20 | 1987-09-28 | Daido Steel Co Ltd | Straightening method for foil stock |
-
1989
- 1989-01-13 JP JP489689A patent/JPH02187216A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220220A (en) * | 1986-03-20 | 1987-09-28 | Daido Steel Co Ltd | Straightening method for foil stock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6077369A (en) * | 1994-09-20 | 2000-06-20 | Nippon Steel Corporation | Method of straightening wire rods of titanium and titanium alloy |
| CN110293143A (en) * | 2019-07-02 | 2019-10-01 | 太原科技大学 | A kind of titanium alloy profile hot pull apparatus for shaping and method |
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