JPH01138005A - Method for cold rolling of titanium stock - Google Patents
Method for cold rolling of titanium stockInfo
- Publication number
- JPH01138005A JPH01138005A JP29806087A JP29806087A JPH01138005A JP H01138005 A JPH01138005 A JP H01138005A JP 29806087 A JP29806087 A JP 29806087A JP 29806087 A JP29806087 A JP 29806087A JP H01138005 A JPH01138005 A JP H01138005A
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- cold rolling
- copper
- rolling
- lubricant
- 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
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 79
- 239000010936 titanium Substances 0.000 title claims abstract description 79
- 238000005097 cold rolling Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 40
- 239000010949 copper Substances 0.000 claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000007747 plating Methods 0.000 claims abstract description 27
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 37
- 239000000839 emulsion Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007127 saponification reaction Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000001472 potassium tartrate Substances 0.000 description 2
- 229940111695 potassium tartrate Drugs 0.000 description 2
- 235000011005 potassium tartrates Nutrition 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 2
- 239000001433 sodium tartrate Substances 0.000 description 2
- 229960002167 sodium tartrate Drugs 0.000 description 2
- 235000011004 sodium tartrates Nutrition 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 229960000355 copper sulfate Drugs 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 1
- 229940074439 potassium sodium tartrate Drugs 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 229940083608 sodium hydroxide Drugs 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- POWFTOSLLWLEBN-UHFFFAOYSA-N tetrasodium;silicate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-] POWFTOSLLWLEBN-UHFFFAOYSA-N 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
Landscapes
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はチタン材の冷間圧延方法に関し、かつ特に経済
性に優れかつ生産性の高いチタン材、特にチタン板やチ
タン箔を得るための冷間圧延方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for cold rolling titanium materials, and particularly for obtaining titanium materials with excellent economic efficiency and high productivity, especially titanium plates and titanium foils. Relating to a cold rolling method.
（従来の技術）
チタン材、特にチタン板の冷間圧延は、通常、ステンレ
ス鋼板の冷間圧延設備、即ちゼンジマーミルと言われる
小径多段ロールの圧延機によって行われており、圧延潤
滑剤として鉱油を主成分とした低鹸化値のものがニート
油又は水分散型のエマルジョンで用いられている。(Prior art) Cold rolling of titanium materials, especially titanium plates, is usually carried out using cold rolling equipment for stainless steel plates, that is, a small-diameter multi-roll rolling mill called a Sendzimer mill, using mineral oil as a rolling lubricant. Those with low saponification values as main components are used in neat oil or water-dispersed emulsions.
チタン板の圧延にゼンジマーミルが用いられる理由は、
チタンの加工硬化特性がステンレス鋼のそれに類似して
いることと、チタン板が圧延時にワークロールに極めて
ビルドアップ（焼付き）し易い性質を有し、このビルド
アップが生じると摩擦係数が大幅に上がるために、一般
に鋼の圧延に用いられる大径ロールのタンデムミルやリ
バースミルでチタン板を冷間圧延することが不可能であ
ることとにある。The reason why Sendzimer mills are used to roll titanium plates is
The work hardening properties of titanium are similar to those of stainless steel, and titanium sheets are extremely prone to build-up (seizure) on work rolls during rolling, and when this build-up occurs, the coefficient of friction increases significantly. This is because it is impossible to cold-roll a titanium plate using a tandem mill or reverse mill with large diameter rolls, which are generally used for rolling steel.
しかしながら、チタン板をゼンジマーミルで冷間圧延す
る場合でも、チタン板のワークロールへのビルドアップ
し易い性質のため、１０−ルパス当りの圧下率を高く設
定することが困難であり、またチタン板を比較的低い圧
下率で圧延する場合でも、高速度圧延が不可能であり、
このためチタン板の冷間圧延は、ゼンジマーミルで行う
場合でも、１０−ルパス当り１５％以下及び圧延速度１
００７ＦＬ／１ｎ以下の条件で行われなければならず、
ステンレス鋼の圧延の場合に較べて著しく生産性が低く
、特に仕上げ厚さが０．１Ｍ以ｔの極めて薄いチタン板
、即ちチタン箔を圧延によって得る場合には膨大な工数
を必要とする。However, even when titanium sheets are cold rolled in a Sendzimer mill, it is difficult to set a high rolling reduction rate per 10-pass because the titanium sheets tend to build up on the work rolls. Even when rolling at a relatively low reduction rate, high speed rolling is not possible;
For this reason, even when cold rolling titanium plates is carried out in a Sendzimer mill, the rolling speed is 15% or less per 10-pass and the rolling speed is 1.
Must be conducted under conditions equal to or less than 007FL/1n,
The productivity is significantly lower than that of stainless steel rolling, and an enormous number of man-hours are required especially when rolling an extremely thin titanium plate with a finished thickness of 0.1M or more, that is, titanium foil.
これらの問題に対処するために、（１）チタン板を加熱
してその表面に薄い酸化膜を形成し、チタン板のワーク
ロールへのビルドアップを防止する方法、（２）圧延ｌ
ＩＳ！ｌ滑剤の鹸化値を高くする方法、（３）圧延潤滑
剤にグラファイト等の固体潤滑剤を分散させる方法等が
提案されている。しかしながら、上記（１）の方法は酸
化膜の延びに対する追随性が悪く、高い圧下率の圧延に
耐えることができず、また（２）及び（３）の方法はビ
ルドアップを防止する効果が低く、このためいずれの方
法も実用化に至っていない。In order to deal with these problems, we have proposed (1) a method of heating the titanium plate to form a thin oxide film on its surface to prevent build-up of the titanium plate on the work roll;
IS! (3) A method of increasing the saponification value of a lubricant, and (3) a method of dispersing a solid lubricant such as graphite in a rolling lubricant. However, method (1) above has poor followability to the elongation of the oxide film and cannot withstand rolling with a high reduction ratio, and methods (2) and (3) are less effective in preventing build-up. Therefore, neither method has been put into practical use.
（発明が解決しようとする問題点）
そこで、本発明は、上記した従来の技術の問題点を解決
するためになされたものであり、チタン材の冷間圧延に
おいてワークロールへのチタン材のビルドアップを防止
し、摩擦係数を大幅に低減し、優れた潤滑性を発揮する
チタン材の冷間圧延方法を提供することを目的とする。(Problems to be Solved by the Invention) Therefore, the present invention has been made to solve the above-mentioned problems of the conventional technology. The purpose of the present invention is to provide a method for cold rolling titanium material that prevents the rolling of titanium materials, significantly reduces the coefficient of friction, and exhibits excellent lubricity.
（問題点を解決するための手段）
即ち、本発明によるチタン材の冷間圧延方法は、圧延さ
れるチタン材の表面に銅メッキを施してチタン材の表面
に銅皮膜を形成する段階と、銅皮膜を形成したチタン材
を潤滑剤の存在Ｆで冷間圧延する段階とを有する。(Means for Solving the Problems) That is, the method for cold rolling a titanium material according to the present invention includes the steps of applying copper plating to the surface of the titanium material to be rolled to form a copper film on the surface of the titanium material; and cold rolling the titanium material on which the copper film has been formed in the presence of a lubricant.
チタン材の表面に銅皮膜を形成する段階で行われる銅メ
ッキには、いろいろなメッキ方法を適用することができ
るが、チタン母材への密着性の良い銅皮膜を得るために
は電気銅メッキ法が好ましく、特にマーシャル法と言わ
れている電気銅メッキ法が適している。このマーシャル
法によれば、（２）まず圧延しようとするチタン板等の
チタン材の表面を軽石、エメリー研磨紙、パフ等の研磨
材を用いて研磨する工程、（ハ）次にチタン材表面を水
酸化ナトリウム、オルソ珪酸ソーダ等の強アルカリ液の
洗浄液で洗浄する工程、（へ）次にチタン材を水洗する
工程、（へ）次にチタン材表面を塩化白金酸を少量添加
した濃塩酸のエツチング液でエツチングする工程、（ｅ
）その後直ちにチタン材表面を酒石酸カリウムナトリウ
ム液の洗浄液で洗浄する工程、（０次にチタン材表面を
硫酸銅、酒石酸カリウムナトリウム及び水酸化ナトリウ
ムのメッキ溶液中で低電流密度で電気銅メッキする工程
、（ロ）この電気銅メッキしたチタン材を水洗する工程
を経て、チタン材表面に銅メッキ皮膜を形成する。この
場合、銅メッキ皮膜の厚さは一般的には約０．５〜３μ
ｍの範囲に調節されることが好ましく、０．５μｍより
小さいと苛酷な塑性変形の延びに対して追随性が不足し
、また３μｍより大きくしてもそれ以上の効果は得られ
ず、不経済である。Various plating methods can be applied to copper plating, which is performed at the stage of forming a copper film on the surface of titanium material, but in order to obtain a copper film with good adhesion to the titanium base material, electrolytic copper plating is used. The electrolytic copper plating method known as the Marshall method is particularly suitable. According to this Marshall method, (2) first the surface of the titanium material such as a titanium plate to be rolled is polished using an abrasive material such as pumice, emery abrasive paper, puff, etc.; (c) next the surface of the titanium material is A process of cleaning the titanium material with a strong alkaline cleaning solution such as sodium hydroxide or sodium orthosilicate, (f) Next a process of washing the titanium material with water, (f) Next, cleaning the surface of the titanium material with concentrated hydrochloric acid to which a small amount of chloroplatinic acid has been added. Etching step with etching solution (e
) Immediately thereafter, the surface of the titanium material is cleaned with a cleaning solution of potassium and sodium tartrate; (0) The surface of the titanium material is electroplated with copper at a low current density in a plating solution of copper sulfate, potassium and sodium tartrate, and sodium hydroxide. (b) A copper plating film is formed on the surface of the titanium material by washing the electrolytically copper-plated titanium material with water.In this case, the thickness of the copper plating film is generally about 0.5 to 3μ.
It is preferable that the adjustment is within the range of m. If it is smaller than 0.5 μm, it will not be able to follow the extension of severe plastic deformation, and if it is larger than 3 μm, no further effect will be obtained, making it uneconomical. It is.
また、冷間圧延段階で用いられる圧延潤滑剤は、ゼンジ
マーミルでステンレス鋼を圧延する場合に用いられる圧
延油と同じ種類の液体を使用することができる。即ち、
鉱物油を主成分とし、これに少量のエステルを添加した
低鹸化価低粘度の液体である。これを適用する方法は水
に分散したエマルジョンでも又はニート油でもよいが、
苛酷な冷間圧延をする場合には多量の熱を発生するので
、冷却効率を上げるために水分散エマルジョンを用いる
ことが望ましい。なお、圧延ｌＩｌ！Ｉ８１剤は上述し
たように低鹸化価で低粘度の液体を用いることが望まし
いが、これに限定する必要はない。Further, the rolling lubricant used in the cold rolling stage can be the same type of liquid as the rolling oil used when rolling stainless steel in a Sendzimer mill. That is,
It is a liquid with a low saponification value and low viscosity, consisting mainly of mineral oil and a small amount of ester added. This can be applied as an emulsion in water or as a neat oil;
Since a large amount of heat is generated during severe cold rolling, it is desirable to use a water-dispersed emulsion to increase cooling efficiency. In addition, rolling lIl! As mentioned above, it is desirable to use a liquid with a low saponification value and low viscosity as the I81 agent, but there is no need to limit it to this.
（作用）
前述したように、チタン材を冷間圧延する場合、チタン
はワークロールに極めてビルドアップし易い性質を有し
ている。これはチタンが鋼製のワークロールと直接に接
触し、高い面圧が加わった時に凝着し易い性質を有する
ためであり、これはいかなる圧延ｌｌｌ！Ｉ滑剤を使用
しても完全に防げるものではない。(Function) As described above, when a titanium material is cold rolled, titanium has a property that it is extremely easy to build up on the work roll. This is because titanium tends to stick when it comes into direct contact with steel work rolls and is subjected to high surface pressure. Even if lubricant is used, it cannot be completely prevented.
本発明方法は、圧延されるチタン材の表面に銅メッキ皮
膜を形成し、この銅メッキ皮膜がチタン材の冷間圧延段
階においてワークロールとの間に介在するので、チタン
と鋼の直接接触を妨げてビルドアップの発生を防止する
。また、銅は比較的軟質でありかつ剪断抵抗が小さいの
で、冷間圧延の際のロールバイト内での摩擦抵抗を緩和
し、チタン材の塑性変形を容易にする作用をする。しか
しながら、金属である銅の作用だけで摩擦抵抗を下げる
ことには限度があり、これを補うために前述した潤滑剤
が用いられ、潤滑剤は銅メッキ皮膜とワークロールとの
間に液膜を形成して冷間用延時のロールバイト内に低い
摩擦係数を確保し、たとえ液膜の局部的な切れが作業中
に生じても、上記した銅の作用によって摩擦係数の大き
な上昇を生じることはなく、更に潤滑剤の冷却作用によ
って冷間圧延中に発生した熱を除去することができる。In the method of the present invention, a copper plating film is formed on the surface of the titanium material to be rolled, and this copper plating film is interposed between the work roll and the titanium material during the cold rolling stage, so that direct contact between titanium and steel is prevented. to prevent build-up from occurring. Further, since copper is relatively soft and has low shear resistance, it acts to ease the frictional resistance within the roll bit during cold rolling and facilitate the plastic deformation of the titanium material. However, there is a limit to how much frictional resistance can be lowered by the action of copper, which is a metal, and to compensate for this, the lubricant described above is used, and the lubricant forms a liquid film between the copper plating film and the work roll. This ensures a low coefficient of friction within the roll bit during cold rolling, and even if a local break in the liquid film occurs during work, the coefficient of friction will not increase significantly due to the action of the copper described above. Furthermore, the heat generated during cold rolling can be removed by the cooling effect of the lubricant.
（実施例）
例１
幅２０ｍ、長さ２００＃及び厚さ１．２８Ｍの純チタン
板（ＪＩＳ１種）を用意し、このチタン板に、前述した
に）工程〜（ロ）工程を含む電気銅メッキ方法で厚さ１
μｍの銅メッキ皮膜を形成した。(Example) Example 1 A pure titanium plate (JIS Class 1) with a width of 20 m, a length of 200 #, and a thickness of 1.28 M is prepared, and the titanium plate is coated with electrolytic copper including the above-mentioned steps 2) to 2). Thickness 1 depending on plating method
A copper plating film of μm thickness was formed.
この場合、（２）工程における研磨としてスコッチブラ
イトによるパフ研磨を採用し、０工程では洗浄液として
ファインクリーナ４３６０ （日本パー力ライジング社
製）を２０ｇ／ｌを含む湿度９０℃の洗浄液を調製し、
その中にチタン板を約１５分間浸漬し、（へ）工程では
塩化白金酸０．５９／Ｊ！を含有する比重１．１８の塩
酸を調製し、その中にチタン板を常温で約３０分間浸漬
し、（ｅ）工程では酒石酸カリウムナトリウム５０９／
１を含む洗浄液を調製し、その中にチタン板を常温で約
１０秒間浸漬し、更に（ｆ） 工程ではメッキ溶液とし
て硫酸銅６０ｇ／ｌ、酒石酸カリウムナトリウム１６０
ｇ／Ｉｔ 、水酸化ナトリウム５（１／１を含むメッキ
溶液を調製し、その中でチタン板を電流密度０．４Ａ／
ｄｍ２で常温において約１０分間電気銅メッキしてチタ
ン板の表面に厚さ１μｍの銅メッキ皮膜を形成した。In this case, puff polishing with Scotchbrite is used as polishing in step (2), and in step 0, a cleaning solution containing 20 g/l of Fine Cleaner 4360 (manufactured by Nippon Parriki Rising Co., Ltd.) at a humidity of 90°C is prepared.
A titanium plate is immersed in it for about 15 minutes, and in the step (to) chloroplatinic acid 0.59/J! Hydrochloric acid with a specific gravity of 1.18 containing
A cleaning solution containing 1 was prepared, and the titanium plate was immersed in it for about 10 seconds at room temperature, and in step (f), 60 g/l of copper sulfate and 160 g/l of potassium sodium tartrate were added as a plating solution.
g/It, a plating solution containing 5 (1/1) sodium hydroxide was prepared, and the titanium plate was heated in it at a current density of 0.4 A/It.
Electrolytic copper plating was performed at room temperature for about 10 minutes at dm2 to form a 1 μm thick copper plating film on the surface of the titanium plate.
このようにして銅メッキ皮膜を表面に形成したチタン板
を、ワークロール径１００ｍ、圧延速度１０ＴｒＬ／ｓ
ｉｎ 、 ｏ−ルパス回数６回、圧下率５．８〜２４．
４％（ブランク材で）の圧延条件で、かつ圧延用潤滑剤
としてファインロール７０４−３（日本パー力ライジン
グ社製）をＳ度１０％含む潤滑剤を用いて、常温で圧延
した。その結果、良好なチタン板が得られた。A titanium plate with a copper plating film formed on its surface in this way was rolled at a work roll diameter of 100 m and a rolling speed of 10 TrL/s.
in, o-ru pass number of 6 times, rolling reduction rate of 5.8 to 24.
Rolling was carried out at room temperature under rolling conditions of 4% (as a blank material) and using a lubricant containing Fine Roll 704-3 (manufactured by Nihon Parriki Rising Co., Ltd.) containing 10% S degree as a rolling lubricant. As a result, a good titanium plate was obtained.
例２
例１における純チタン板と同じ純チタン板を用意し、こ
のチタン板の表面に、例１で用いた電気メッキ方法の（
ｆ）工程におけるメッキ時間を２０分間にした以外は例
１での電気メッキ方法と同じメッキ条件で、厚さ２μｍ
の銅メッキ皮膜を形成した。この銅メッキ皮膜を形成し
たチタン板を、例１における圧延条件と同じ圧延条件で
圧延した。Example 2 A pure titanium plate identical to the pure titanium plate in Example 1 was prepared, and the surface of this titanium plate was coated with the electroplating method used in Example 1.
f) A thickness of 2 μm using the same plating conditions as the electroplating method in Example 1 except that the plating time in the process was changed to 20 minutes.
A copper plating film was formed. The titanium plate on which the copper plating film was formed was rolled under the same rolling conditions as in Example 1.
その結果、良好なチタン板が得られた。As a result, a good titanium plate was obtained.
次に、上記した例１及び例２で得たチタン板の圧延性を
従来技術で得たチタン板の比較例と比較して評価した。Next, the rollability of the titanium plates obtained in Examples 1 and 2 described above was evaluated by comparing with a comparative example of a titanium plate obtained using the conventional technique.
比較例は例１で使用した純チタン板と同じ純チタン板を
銅メッキ処理せずに例１の圧延条件で冷間圧延したもの
である。また、圧延性の評価は次式、
Σ％／トンー各ロールバスでの％／Ｔ（圧下率／単位幅
当りの圧延荷重）を積算した値によって評価した。In the comparative example, the same pure titanium plate as the pure titanium plate used in Example 1 was cold-rolled under the rolling conditions of Example 1 without copper plating. The rolling property was evaluated using the following formula: Σ%/ton - %/T (rolling reduction ratio/rolling load per unit width) in each roll bath.
この評価結果を添付図面に示す。この図面から明らかな
ように、本発明の例１及び例２で得られたチタン板はい
ずれも比較例に較べて圧延性が大幅に向上している。特
に板厚が薄くなり、加工硬化する後段のロールパスにお
いては、比較例のチタン板がロールパス３回目からビル
ドアップを起こして圧延性が著しく悪化しているのに対
して、本発明の例１及び例２のチタン板はいずれも６回
の全日−ルバス回数にわたって全くビルドアップせず、
高い圧延性を有することが判明した。The results of this evaluation are shown in the attached drawing. As is clear from this drawing, both the titanium plates obtained in Examples 1 and 2 of the present invention have significantly improved rollability compared to the comparative example. In particular, in the later roll passes where the plate thickness becomes thinner and work hardens, the titanium plate of the comparative example causes build-up from the third roll pass and the rollability deteriorates significantly, whereas the titanium plate of the present invention The titanium plates of Example 2 did not build up at all over 6 full-day baths,
It was found that it has high rolling properties.
（発明の効果）
以上説明したように、本発明は、圧延されるチタン材の
表面に銅メッキを施してチタン材を表面に銅皮膜を形成
し、次に、銅皮膜を形成したチタン材を圧延液体の存在
下で冷間圧延することにより、優れた潤滑制を発揮し、
かつ生産性を大幅に向上させるなど著しい効果を奏する
。(Effects of the Invention) As explained above, the present invention applies copper plating to the surface of a titanium material to be rolled to form a copper film on the surface of the titanium material, and then removes the titanium material on which the copper film has been formed. Cold rolling in the presence of rolling fluid provides excellent lubrication,
Moreover, it has remarkable effects such as greatly improving productivity.
図面は本発明の方法で得たチタン材の圧延性を従来方法
で得たチタン材と比較して示したグラフである。The drawing is a graph showing the rollability of a titanium material obtained by the method of the present invention in comparison with that of a titanium material obtained by a conventional method.
Claims (3)
チタン材の表面に銅皮膜を形成する段階と、前記銅皮膜
を形成したチタン材を潤滑剤の存在下で冷間圧延する段
階と、 を有するチタン材の冷間圧延方法。(1) A step of applying copper plating to the surface of the titanium material to be rolled to form a copper film on the surface of the titanium material, and a step of cold rolling the titanium material on which the copper film has been formed in the presence of a lubricant. A method for cold rolling titanium material having the following steps.
．５〜３μｍの範囲の銅皮膜を電気銅メッキによつて形
成する特許請求の範囲第１項記載のチタン材の冷間圧延
方法。(2) At the copper film formation stage, the surface of the titanium material has a thickness of 0.
．． 2. The method of cold rolling a titanium material according to claim 1, wherein a copper film having a thickness of 5 to 3 μm is formed by electrolytic copper plating.
させたエマルジョン又はニート油である特許請求の範囲
第１項記載のチタン材の冷間圧延方法。(3) The method for cold rolling titanium material according to claim 1, wherein the lubricant used in the cold rolling step is an emulsion of oil dispersed in water or neat oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29806087A JPH01138005A (en) | 1987-11-26 | 1987-11-26 | Method for cold rolling of titanium stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29806087A JPH01138005A (en) | 1987-11-26 | 1987-11-26 | Method for cold rolling of titanium stock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01138005A true JPH01138005A (en) | 1989-05-30 |
| JPH0513724B2 JPH0513724B2 (en) | 1993-02-23 |
Family
ID=17854613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29806087A Granted JPH01138005A (en) | 1987-11-26 | 1987-11-26 | Method for cold rolling of titanium stock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01138005A (en) |
-
1987
- 1987-11-26 JP JP29806087A patent/JPH01138005A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0513724B2 (en) | 1993-02-23 |
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