JPS6376706A - Production of thin sheet made of alpha+beta type alloy titanium - Google Patents
Production of thin sheet made of alpha+beta type alloy titaniumInfo
- Publication number
- JPS6376706A JPS6376706A JP21820886A JP21820886A JPS6376706A JP S6376706 A JPS6376706 A JP S6376706A JP 21820886 A JP21820886 A JP 21820886A JP 21820886 A JP21820886 A JP 21820886A JP S6376706 A JPS6376706 A JP S6376706A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- pickling
- alloy
- cold
- production
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 14
- 239000000956 alloy Substances 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000010936 titanium Substances 0.000 title claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims description 5
- 229910052719 titanium Inorganic materials 0.000 title claims description 5
- 238000005554 pickling Methods 0.000 claims abstract description 15
- 238000005097 cold rolling Methods 0.000 claims abstract description 13
- 230000003746 surface roughness Effects 0.000 claims abstract description 11
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 9
- 238000005098 hot rolling Methods 0.000 claims description 6
- 238000003475 lamination Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 37
- 239000000463 material Substances 0.000 abstract description 12
- 238000000227 grinding Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 11
- 239000011162 core material Substances 0.000 description 7
- 230000009466 transformation Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Metal Rolling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、α＋β型合金チタンの薄板製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for producing a thin plate of α+β type alloy titanium.
合金Ｔｉの広幅薄物材を製造するには、様々な問題があ
るが、特に通常の鉄鋼圧延設備にて製造する場合には、
以下に示すような問題が生ずる。There are various problems in manufacturing wide thin materials of Ti alloy, especially when manufacturing with normal steel rolling equipment.
The following problems arise.
（１１合金ＴＴｉ間圧延 合金Ｔｉの圧延工程は以下に示す順にて行われる。(11 alloy TTi rolling The rolling process of the Ti alloy is performed in the order shown below.
（インボッ＋’）’＝ Ｃβ域分塊圧圧延−〔α−（−
β域仕上圧延〕−〔熱処理〕
ここで〔ａ十β域仕上圧延〕は製品の組織を調整すめた
めのものであり、この圧延工程により製品の特性が決ま
る。(Inbo +')' = Cβ area blooming rolling - [α-(-
[β-region finish rolling] - [Heat treatment] Here, [a-β-region finish rolling] is for adjusting the structure of the product, and the properties of the product are determined by this rolling process.
〔α＋β域仕上圧延〕工程での圧延方向が一方向の場合
、圧延方向と幅方向で製品の引張り強度が異なるため、
これを防ぐためクロス圧延が必要であろう
クロス圧延は厚板ミルでしか出来ないため、一般に仕上
げ板厚≧５馴であるので、通常の圧延方法では薄板が出
来ない。[α+β area finish rolling] If the rolling direction in the process is one direction, the tensile strength of the product is different in the rolling direction and the width direction.
Cross rolling, which would be required to prevent this, can only be done in plate mills, and generally the finished plate thickness is ≧5, so normal rolling methods cannot produce thin plates.
（２）合金Ｔｉ冷間圧延
含金Ｔｉは冷間加工性が悪いため、冷間圧延による減Ｊ
は殆ど出来ない。熱間圧延板を冷間圧延したところで１
０〜３０％圧延出来るだけであり、極薄板の製造は不可
能である。(2) Cold rolling of alloyed Ti Since alloyed Ti has poor cold workability, the reduction in J due to cold rolling
I can hardly do it. When a hot rolled plate is cold rolled, 1
It is only possible to roll 0 to 30%, and it is impossible to manufacture ultra-thin plates.
然し、〔熱延〕−〔冷延〕の工程では、薄物は出来るが
、広幅物の製造は不可能である。However, in the [hot rolling]-[cold rolling] process, thin products can be produced, but wide products cannot be manufactured.
一方〔厚板〕の工程では広幅物は出来るが、薄物は製造
が不可能である。On the other hand, in the [thick plate] process, wide products can be produced, but thin products cannot be manufactured.
上記の問題点を解決するには、厚板ミルによる積層圧延
方法（パック圧延方法）がある。然し、このパック圧延
方法には、以下に示す問題点がある。To solve the above problems, there is a layer rolling method (pack rolling method) using a plate mill. However, this pack rolling method has the following problems.
（１）コア材は、カバー材に押さえられて変形するため
、表面状態が悪く、凹凸が生ずる。(1) Since the core material is pressed and deformed by the cover material, the surface condition is poor and unevenness occurs.
（２）コア材の表面に酸化層が生ずるため、酸洗にて落
とすが、それにより表面光沢が消える。そこで最終仕上
げとしてグラインダー研Ｕする必要があり、その手間の
分だけコストが上がる。又Ｔ！を削り落とすため歩留り
が低下する。(2) Since an oxidized layer forms on the surface of the core material, it is removed by pickling, but the surface gloss disappears. Therefore, as a final finish, it is necessary to use a grinder, which increases the cost by the amount of time and effort required. T again! The yield decreases because the material is scraped off.
本発明は、合金Ｔｉの広幅、薄板を積層熱間圧延にて製
造するに当たって、製品の表面粗さの改善、従来の研削
による仕上げ工程の省略、並びに歩留りの向上を図り、
コスト低下をも図るａ＋β型合金チタンの薄板製造方法
を提供することを目的とするものである。The present invention aims to improve the surface roughness of the product, omit the conventional finishing process by grinding, and improve the yield when manufacturing wide and thin Ti alloy plates by laminated hot rolling.
The object of the present invention is to provide a method for manufacturing a thin plate of a+β type alloy titanium, which also reduces costs.
〔問題点を解決するｔ二めの手段３
本究明は、合金Ｔｉの広幅、薄物４イを製造するに当た
って、一枚以上の合金Ｔｉをコア材として、各暦月に剥
離剤を塗布し、カバー材としてスチール板を用い、コア
材をカバー材で鋏み、周りにスペーサを溶接して構成し
た積属圧延素材を、加熱して、変態温度以下の熱間にて
、リバースミルにて圧延して７Ｇられる合金Ｔｉの薄板
は、表面に凹凸が生じ、表面粗度が大きい。従ってこの
板を変Ｂ’ｌＡ度以下で焼鈍し、等軸０品に結晶粒を調
整し、その後、表面のスケールを落とし、板厚を調整す
るために、ショット、酸洗を施すが、圧延時に生じた表
面の凹凸はそのまま残る。[Second Means to Solve the Problem 3] In this investigation, in manufacturing a wide and thin alloy Ti alloy, one or more sheets of alloy Ti are used as a core material, and a release agent is applied in each calendar month. Using a steel plate as the cover material, the core material is sandwiched between the cover materials and a spacer is welded around the stacked rolling material, which is then heated and rolled in a reverse mill at a temperature below the transformation temperature. The thin plate of Ti alloy produced by 7G has irregularities on its surface and has a large surface roughness. Therefore, this plate is annealed at a temperature below B'lA degree to adjust the crystal grains to zero equiaxed, and then shot and pickled are applied to remove the scale on the surface and adjust the plate thickness. Any surface irregularities that may have occurred will remain as they are.
この様にして得られた薄板を冷間にて−バス以上の圧延
を行い、総圧下率を下記の式で示されろ圧下率範囲で圧
延し、表面の凹凸をπｊし、表面光沢度を上げる圧延方
法である。The thin plate obtained in this way is cold-rolled over a bath or more, and the total rolling reduction is within the rolling reduction range shown by the following formula, the surface irregularities are πj, and the surface gloss is This is a rolling method that increases
即ち、本発明は、合金Ｔｉの薄板Ｍ造において、積層熱
間圧延材を、焼鈍、剥離後、酸洗を施し下記の式に示ず
圧下率γ。（％）範囲で冷間圧延することを特徴とする
ａ＋β型合金合金チタン板製造方法である。That is, in the present invention, in the case of the thin plate M structure of Ti alloy, the laminated hot-rolled material is annealed, peeled, and pickled, and the rolling reduction ratio γ is not shown in the following formula. (%) range of cold rolling.
Ｒ□、Ｘ１００／ｌ≦γ。＜３０
但し Ｒｗａｘ：酸洗後表面最大粗さ關ｔ ：酸洗後
板厚順
〔作用〕
本発明は、積層熱間圧延材を焼鈍、剥離後、酸洗を施し
上記の式に示す圧下率γｃ（％）範囲で冷間圧延するこ
とを特徴とするα＋β型合金チタンの薄板製造方法であ
るが、以下に冷間圧延条件ノ設定理由について述べる。R□, X100/l≦γ. <30 However, Rwax: Maximum surface roughness after pickling; t: Order of board thickness after pickling [Function] In the present invention, a laminated hot rolled material is annealed and peeled, and then pickled and the reduction ratio shown in the above formula is obtained. The method for producing a thin plate of α+β type alloy titanium is characterized by cold rolling in the γc (%) range, and the reasons for setting the cold rolling conditions will be described below.
Ｔｉ−６人１−４ＶのＴｉ合金を、６００〜８５０℃の
範囲で、１０〜７０％の圧下率で圧延し、その後、９５
０℃で１時間焼鈍したサンプルを冷間にて多パス圧延し
、エツジ割れの発生する圧下率を測定した。Ti-6 people rolled a 1-4V Ti alloy at a rolling reduction of 10-70% in the range of 600-850°C, and then rolled it at 95%.
Samples annealed at 0° C. for 1 hour were cold rolled for multiple passes, and the rolling reduction at which edge cracking occurred was measured.
その結果を第１図に示す。横軸に熱間における圧下率、
縦軸に冷間においてエツジ割れの生じない最大の圧下率
をとり、グラフに示す。The results are shown in FIG. The horizontal axis is the rolling reduction rate during hot rolling,
The vertical axis represents the maximum rolling reduction at which no edge cracking occurs during cold rolling, and is shown in the graph.
グラフの曲芽より上の範囲が冷間圧延にてエツジ割れの
発生する圧下率であり、曲線より下が割れの発生しない
圧下率である。The range above the curve in the graph is the rolling reduction at which edge cracks occur during cold rolling, and the range below the curve is the rolling reduction at which no cracking occurs.
これより熱間圧延における圧下率が大きい程。The higher the rolling reduction ratio during hot rolling.
冷間における圧下率が大きく出来ることが分かる。It can be seen that the rolling reduction ratio during cold rolling can be increased.
ここで、γ。は、実際のｖｉ層圧延条件より最大３０％
となる。尚熱間圧延温度、焼鈍温度を変態温度（９７５
℃）以上にすると組織が粗大化し、冷間加工性が恋くな
ろため変態）畠度以下が望ましい。Here, γ. is up to 30% higher than the actual VI layer rolling conditions.
becomes. Note that the hot rolling temperature and annealing temperature are the transformation temperature (975
℃) or higher, the structure becomes coarse and cold workability deteriorates, so it is desirable to have a degree of transformation (transformation) or lower.
又最小圧下率は、表面粗さの改善効果を得ろために、酸
洗後の最大表面粗さで規制されろ。In addition, the minimum rolling reduction rate should be regulated by the maximum surface roughness after pickling in order to obtain the effect of improving surface roughness.
以上より、冷間圧下車範囲は、 Ｒ□、ｘｌＯＯ八≦γへ＜３０ となる。From the above, the cold reduction range is R□, xlOO8≦γ becomes <30.
次に本発明の実施例について述べろ。Next, let us discuss embodiments of the present invention.
実施例１
カバー材にＳ Ｓ ４１ （２５，４ｘ１４３５ｘ１８
８４關）、コア材ニＴ ｉ −６ＡＩ−４Ｖ （１５，
２Ｘ１２７０Ｘ１７２７ＩＩＩＲ） ３枚を用い、剥離
剤としてアルミナ粉を塗り、重ね合わせ、スペーサを周
りに溶接して作成した９Ｇ、 ７Ｘ１４３６Ｘ１８６４
閣の積層圧延素材を工場にて９２５℃まで加熱した後厚
板ミルにて２８．９ｍｍまで圧延した。この結果、各Ｔ
ｉ厚さが４．Ｇｍｒｍのほぼ平坦な板が得られた。Example 1 S S 41 (25,4x1435x18
84), core material Ni Ti-6AI-4V (15,
9G, 7X1436X1864 made by using three sheets (2X1270X1727IIIR), applying alumina powder as a release agent, overlapping them, and welding a spacer around them.
The laminated rolled material of Kaku was heated to 925° C. in a factory and then rolled to 28.9 mm in a plate mill. As a result, each T
i thickness is 4. A substantially flat plate of Gmrm was obtained.
仕上げ温度は７４０℃である。The finishing temperature is 740°C.
この合金Ｔｉ板を、ンヨット、酸洗を施した後、１枚は
、従来通り研削仕上げをし、他の１枚は冷間レバースミ
ルにて冷間圧延仕上げを行った。After the Ti alloy plates were subjected to drying and pickling, one plate was finished by grinding in the conventional manner, and the other plate was finished by cold rolling in a cold lever mill.
酸洗後の最大表面粗さは約３０μであり、若干の小波を
有していた。その結果、研削で平坦な板を得るために（
よ、約２００μの研削代が必要であった。The maximum surface roughness after pickling was about 30μ, with some undulations. As a result, in order to obtain a flat plate with grinding (
A grinding allowance of approximately 200μ was required.
一方、冷圧でも同様に２００μの圧下を１パス行った。On the other hand, one pass of cold pressure reduction of 200μ was similarly performed.
その結果、研削仕上げと同等な表面状態の板が、研削代
なく、又工数でも逍かに短時間に得ることが出来た。As a result, it was possible to obtain a plate with a surface condition equivalent to that obtained by grinding, without the need for grinding, and with fewer man-hours and in a much shorter time.
尚、今回の冷間ロール表面粗さはＲｎ（平均粗さ）で０
．５μを用いた。In addition, the cold roll surface roughness this time was 0 in Rn (average roughness).
．． 5μ was used.
冷間ロールの表面粗さを調整することにより、任息の表
面■さの板を１することが出来る。By adjusting the surface roughness of the cold roll, it is possible to create a board with any desired surface thickness.
実施例２ 以下の条件にてパック圧延を行った。Example 2 Pack rolling was performed under the following conditions.
成品寸法 厚さ１．２ＧＸ幅１２１９ｘ長さ２４３８ｍ
ｍ組立スラブ寸法／ｌ ５８．６Ｘｌ １４５（
ｉｘ ／ｌ １９６０ｍＩｎカバー材 （ＦＯ９
，Ｓ）／／ ２２．４Ｘ／／ １４５０ｘ ／ｌ
１９６０＋ｍｎコア材 （６−４Ｔｉ）〃 ４
．６Ｘ／／ １３１５Ｘ ／／ １８１５１＋
＋ｍ ３枚用熱温度 ９２０℃
圧延 第１パス目よりレバース圧延、パス数１０パスに
て圧延荷重は１０００〜３０００トン、圧延時表面温度
は７４０〜７６５℃
成品寸法 厚さ２１．２ｘ幅１４８０ｘ長さＧ ［ｉ
７０ ｍｍカバー材 （ＦＯ９，Ｓ）ｉ ６．ａｘ
ｌ １４８０Ｘ ／／ ｆｌｉ６７０ｍｍコ
ア材（６−４Ｔｉ） ／ｌ １．２８Ｘ／／ １３２
５Ｘ ／ｌ ００００ｍ＋ｍ ３枚形状 長手方
向２幅方向とも形状良好
このようにして得られた合金Ｔｌ板より、以下の手順に
従い圧延した。Product dimensions Thickness 1.2G x Width 1219 x Length 2438 m
m Assembly slab dimensions/l 58.6Xl 145 (
ix /l 1960mIn cover material (FO9
, S) // 22.4X// 1450x /l
1960+mn core material (6-4Ti)〃 4
．． 6X // 1315X // 18151+
+m Thermal temperature for 3 sheets 920℃ Rolling Reverse rolling from the first pass, rolling load of 1000 to 3000 tons in 10 passes, surface temperature during rolling 740 to 765℃ Product dimensions Thickness 21.2 x width 1480 x length SaG [i
70 mm cover material (FO9,S)i 6. ax
l 1480X // fli670mm core material (6-4Ti) /l 1.28X // 132
5X/l 0000m+m 3-sheet shape Good shape in both longitudinal and width directions The alloy Tl plate thus obtained was rolled according to the following procedure.
（ショット）呻（酸洗）→（冷間圧延）斯くすることに
より厚みは、１．２８→１．１５→１．０５→０．９６
閣となった。(Shot) Pickling (pickling) → (cold rolling) As a result, the thickness is 1.28 → 1.15 → 1.05 → 0.96
It became a cabinet.
総圧下率・２５％、ロール径 ５００ｍ＋＋＋、ロール
回転速度−・１００ｒｐ１１
以上より、表面性状及び形状の良好な０．９６＋＋＋＋
ａｔのａ＋β合金Ｔｉの薄板の！Ｍ造が可能となった。Total rolling reduction ratio: 25%, roll diameter: 500m+++, roll rotation speed: 100rp11 From the above, 0.96+++ with good surface texture and shape.
At's a+β alloy Ti thin plate! M construction is now possible.
本発明のａ＋β型合金チクレの薄板製造方法によれば、
次の如き効果を奏するものである。According to the method for manufacturing a thin plate of a+β type alloy chicure of the present invention,
This has the following effects.
（１）ａ全Ｔｉの積層圧延における仕上げ研削が省略出
来ろ。(1) a Finish grinding in all-Ti layered rolling can be omitted.
（２＋ ７ｉ１Ｆ削工程の省略に伴ってコストが低下す
る。(2+7i1F The cost is reduced due to the omission of the cutting process.
（３）削り代が無いため歩留りが向上する。(3) Yield is improved because there is no machining allowance.
第１図は、冷間圧下車と熱間圧下車との関係グラフであ
る。FIG. 1 is a graph showing the relationship between the cold reduction car and the hot reduction car.
Claims (1)
剥離、酸洗を施した後、下記の式に示す圧下率γ＿ｃ（
％）の範囲で冷間圧延することを特徴とするα＋β型合
金チタンの薄板製造方法。 Ｒ＿ｍ＿ａ＿ｘ×１００／ｔ≦γ＿ｃ＜３０ 但しＲ＿ｍ＿ａ＿ｘ：酸洗後表面最大粗さｍｍ ｔ：酸洗後板厚ｍｍ[Claims] In the production of Ti alloy thin plates, after lamination hot rolling, annealing,
After peeling and pickling, the reduction rate γ_c (
A method for producing a thin plate of α+β type alloy titanium, characterized by cold rolling in a range of %). R_m_a_x×100/t≦γ_c<30 However, R_m_a_x: Maximum surface roughness after pickling mm t: Board thickness after pickling mm
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61218208A JP2515514B2 (en) | 1986-09-18 | 1986-09-18 | Method for manufacturing thin plate of α + β type titanium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61218208A JP2515514B2 (en) | 1986-09-18 | 1986-09-18 | Method for manufacturing thin plate of α + β type titanium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6376706A true JPS6376706A (en) | 1988-04-07 |
| JP2515514B2 JP2515514B2 (en) | 1996-07-10 |
Family
ID=16716313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61218208A Expired - Lifetime JP2515514B2 (en) | 1986-09-18 | 1986-09-18 | Method for manufacturing thin plate of α + β type titanium alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515514B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0896839A2 (en) * | 1997-08-14 | 1999-02-17 | Nkk Corporation | Method for manufacturing titanium alloy sheet |
| CN103447296A (en) * | 2013-08-21 | 2013-12-18 | 中国船舶重工集团公司第七二五研究所 | Method for manufacturing Ti60 alloy sheet |
| CN115971249A (en) * | 2022-12-09 | 2023-04-18 | 浙江申吉钛业股份有限公司 | Preparation method of ultrathin TC4 titanium alloy plate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489507A (en) * | 2011-12-14 | 2012-06-13 | 西部钛业有限责任公司 | Preparation method for titanium alloy wide sheet |
-
1986
- 1986-09-18 JP JP61218208A patent/JP2515514B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0896839A2 (en) * | 1997-08-14 | 1999-02-17 | Nkk Corporation | Method for manufacturing titanium alloy sheet |
| US5932036A (en) * | 1997-08-14 | 1999-08-03 | Nkk Corporation | Method for manufacturing titanium alloy sheet |
| EP0896839A3 (en) * | 1997-08-14 | 2002-01-16 | Nkk Corporation | Method for manufacturing titanium alloy sheet |
| CN103447296A (en) * | 2013-08-21 | 2013-12-18 | 中国船舶重工集团公司第七二五研究所 | Method for manufacturing Ti60 alloy sheet |
| CN103447296B (en) * | 2013-08-21 | 2016-03-02 | 洛阳双瑞精铸钛业有限公司 | A kind of preparation method of Ti60 latten |
| CN115971249A (en) * | 2022-12-09 | 2023-04-18 | 浙江申吉钛业股份有限公司 | Preparation method of ultrathin TC4 titanium alloy plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2515514B2 (en) | 1996-07-10 |
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