JPH0677858B2 - Method for manufacturing titanium clad steel sheet - Google Patents
Method for manufacturing titanium clad steel sheetInfo
- Publication number
- JPH0677858B2 JPH0677858B2 JP62201574A JP20157487A JPH0677858B2 JP H0677858 B2 JPH0677858 B2 JP H0677858B2 JP 62201574 A JP62201574 A JP 62201574A JP 20157487 A JP20157487 A JP 20157487A JP H0677858 B2 JPH0677858 B2 JP H0677858B2
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- clad
- steel
- dummy
- clad steel
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、母材としての鋼材と合せ材としてのチタン材
とからなるチタンクラッド鋼材の改善された製造方法に
関する。TECHNICAL FIELD The present invention relates to an improved method for producing a titanium clad steel material comprising a steel material as a base material and a titanium material as a composite material.
（従来の技術） 異種金属を層状に積層して一体化した、いわゆるクラッ
ド材は単独の金属では得られない性質を有し、素材それ
ぞれの優れた特性を兼ね備え、それぞれの欠点を補い合
い、しかも安価である。これらの理由からクラッド材は
広く用いられている。特にチタン−鋼のクラッド材はチ
タンの優れた耐食性が利用でき、クラッド化によるチタ
ン材使用量の節減により製造コストの低下が図れる等の
利点を有し、技術上および経済上重要である。(Prior Art) A so-called clad material, which is made by laminating different metals in layers and integrated, has properties that cannot be obtained by a single metal, combines the excellent characteristics of each material, compensates for each defect, and is inexpensive. Is. For these reasons, clad materials are widely used. In particular, a titanium-steel clad material has the advantages that the excellent corrosion resistance of titanium can be utilized and that the production cost can be reduced by reducing the amount of titanium material used by clad formation, which is technically and economically important.
圧延法によるチタンクラッド鋼の従来の製造方法は、母
材としての鋼材と合せ材としてのチタン材とで金属中間
材（これは母材と合せ材の接合界面にチタン炭化物TiC
や金属間化合物TiFe2,TiFe等の異物が析出し接合強さを
低下させるのを防止する目的で用いられる）を狭持し、
これをクラッド組立て素材として、２体を剥離材を介し
て合せ材側を対向させて溶接組立てし、サンドイッチ状
クラッド組立て体とするか、１体で合せ材側に剥離剤を
介してダミー剤を合せて溶接組立てし、セミサンドイッ
チ状クラッド組立て体とする方法が主流であるが、いず
れも、クラッド組立て体を形成するにあたって、圧延後
分離する界面に剥離剤（例えばアルミナAl2O3）を塗布
することを必要としている。（例えば特開昭59−47081
号公報参照。） （発明が解決しようとする問題点） 圧延法によるチタンクラッド鋼板の製造において金属中
間材を用いることによって、接合強度の安定化を図るこ
とは重要である。しかし実際の工業的製造過程において
は、金属中間材によって防止されるべきチタン炭化物や
金属間化合物の接合界面における析出と同程度、あるい
はそれ以上に接合強度を低下せしめる要因がある。即ち
接合界面への剥離剤等の異物の巻き込みである。これは
クラッド組立て体を形成するに際し、合せ材であるチタ
ンと母材である鋼との四周を直接溶接シールすることが
できないため、剥離剤がクラッド組立て体を形成する工
程、あるいは加熱・圧延する工程においてクラッド組立
て体内部で飛散し接合面へも侵入するに至るためであ
る。The conventional manufacturing method of titanium clad steel by rolling method is to use a steel intermediate as a base material and a titanium material as a composite material to produce a metal intermediate material (this is a titanium carbide TiC
And intermetallic compounds such as TiFe 2 and TiFe, which are used for the purpose of preventing foreign substances from precipitating and decreasing the bonding strength).
Using this as a clad assembly material, two bodies are welded and assembled with the mating material sides facing each other with a release material interposed therebetween to form a sandwich-type clad assembly body, or a single body is provided with a dummy agent via a release agent on the mating material side. The mainstream method is to weld and assemble them together to form a semi-sandwich clad assembly. In both cases, a stripping agent (eg, alumina Al 2 O 3 ) is applied to the interface that separates after rolling when forming the clad assembly. Need to do. (For example, JP-A-59-47081
See the official gazette. (Problems to be Solved by the Invention) It is important to stabilize the bonding strength by using a metal intermediate material in the production of a titanium clad steel sheet by a rolling method. However, in the actual industrial manufacturing process, there is a factor that reduces the bonding strength to the same extent as or more than the precipitation of titanium carbide or intermetallic compound at the bonding interface, which should be prevented by the metal intermediate material. That is, it is the inclusion of foreign matter such as a release agent into the bonding interface. This is because when the clad assembly is formed, it is not possible to directly weld-seal the four circumferences of the titanium, which is the joining material, and the steel, which is the base material, and therefore the release agent is used in the step of forming the clad assembly or by heating and rolling. This is because, in the process, the particles are scattered inside the clad assembly and penetrate into the joint surface.
本発明はかかる剥離剤による接合界面のよごれに起因す
る接合強度の低下を防止し、安定した接合強度を有する
チタンクラッド鋼板を得ることを目的とする。An object of the present invention is to obtain a titanium clad steel sheet having a stable bonding strength by preventing the deterioration of the bonding strength due to the dirt on the bonding interface due to the release agent.
（問題点を解決するための手段） かくして本発明の要旨とするところは、母材としての鋼
材と合せ材としてのチタン材とで、１種類ないし２種類
の金属中間材を狭持してクラッド組立て素材とし、さら
に合せ材側にダミー材として、C:0.03〜0.20重量％、S
i:1.00重量％以下、Mn:2.00重量％以下およびＰ、Ｓ等
の不可避的不純物元素を通常のレベルで含有する鋼であ
って、合せ材と対向する面がスケールを除去した研磨面
からなる鋼材を合わせ、ダミー材、合せ材、母材の周辺
を溶接で囲みセミサンドイッチ状クラッド組立体とし、
内部空隙部の排気処理を施した後加熱・圧延を行うこと
を特徴とするチタンクラッド鋼の製造方法である。(Means for Solving the Problems) Thus, the gist of the present invention is that the steel material as the base material and the titanium material as the composite material sandwich one or two kinds of metal intermediate materials and clad them. As an assembled material, and as a dummy material on the mating material side, C: 0.03 to 0.20% by weight, S
i: 1.00% by weight or less, Mn: 2.00% by weight or less, and a steel containing inevitable impurity elements such as P and S at a normal level, and the surface facing the bonding material is a polished surface from which scale is removed. The steel materials are combined, the dummy material, the composite material, and the base material are surrounded by welding to form a semi-sandwich clad assembly.
It is a method for producing titanium clad steel, which comprises heating and rolling after exhausting the internal voids.
なお、P,S等の不可避的不純物元素の通常レベルとは例
えばP:0.001〜0.050重量％、S:0.001〜0.050重量％であ
る。The normal levels of unavoidable impurity elements such as P and S are, for example, P: 0.001 to 0.050% by weight and S: 0.001 to 0.050% by weight.
（作用） 本発明は前述の剥離剤による接合強度低下を防止するた
めに剥離剤の使用をせずに同等の剥離効果を得るもので
ある。剥離剤の使用目的はクラッド組立て体を加熱、圧
延した後、ダミー材と合せ材とを容易に剥すことにある
が、本発明においてはダミー材の化学成分を限定するこ
とによって、合せ材であるチタンとダミー材との接触界
面でチタン炭化物や、金属間化合物の析出を促し、脆い
層を形成させて剥離を容易にする。(Operation) The present invention is to obtain the same peeling effect without using a peeling agent in order to prevent a decrease in the bonding strength due to the above-mentioned peeling agent. The purpose of using the release agent is to easily peel off the dummy material and the composite material after heating and rolling the clad assembly. However, in the present invention, the dummy material is a composite material by limiting the chemical composition of the dummy material. It promotes precipitation of titanium carbide and intermetallic compounds at the contact interface between titanium and the dummy material, forming a brittle layer and facilitating peeling.
ダミー材の化学成分としては通常の軟鋼と同等のもので
十分であるが、炭素等の含有量が低過ぎる場合はチタン
炭化物あるいは金属間化合物の析出は不十分で剥離が困
難になり目的を達し得ない場合が生じる。また炭素等の
含有量が高過ぎる場合はクラッド組立て体を形成する際
の溶接において溶接性が悪くなる。従ってC:0.03〜0.20
％、Si:1.00％以下、Mn:2.00％以下にこれらの元素の量
を限定する必要がある。The chemical composition of the dummy material is sufficient to be the same as that of ordinary mild steel, but if the content of carbon etc. is too low, the precipitation of titanium carbide or intermetallic compounds will be insufficient and peeling will be difficult to achieve the purpose. There are cases where you cannot get it. Further, if the content of carbon or the like is too high, the weldability becomes poor in welding when forming the clad assembly. Therefore C: 0.03 to 0.20
%, Si: 1.00% or less, Mn: 2.00% or less, it is necessary to limit the amounts of these elements.
またダミー材の合せ材に対向する面をスケールを除去し
た研磨面とすることによってクラッド組立て体を加熱す
る際にダミー材のスケールが合せ材のチタンによって還
元されて不純物を含む鉄粉を生じ、これが接合界面を汚
染するのを防止することができる。Further, by making the surface of the dummy material facing the mating material a polishing surface from which the scale has been removed, when the cladding assembly is heated, the scale of the dummy material is reduced by titanium of the mating material to produce iron powder containing impurities, This can prevent the joint interface from being contaminated.
次にこれらの理由についてさらに詳説する。Next, these reasons will be described in more detail.
ダミー材の化学成分限定理由 本発明においてはダミー材の化学成分を次の通り限定し
ている： C:0.03〜0.20％ Si:1.00％以下 Mn:2.00％以下 炭素の含有量を0.03％以上としたのは、ダミー材と合せ
材であるチタンとの接触界面で、クラッド組立体の加
熱、圧延プロセスにおいてチタン炭化物を析出させ、ダ
ミー材とチタンの間に剥離剤を挿入しなくても圧延後容
易に剥すことができるようにするのに必要な炭素量であ
ることによる。炭素含有量を0.03％未満にすると、ダミ
ー材とチタンとの界面におけるチタン炭化物の析出が不
十分となり剥離が困難となる。また炭素含有量の上限を
0.20％とした理由、Siの含有量の上限を1.00％とした理
由、およびMnの含有量の上限を2.00％とした理由は、ク
ラッド組立体作成時の溶接性を確保するためである。Reason for limiting chemical composition of dummy material In the present invention, the chemical composition of the dummy material is limited as follows: C: 0.03 to 0.20% Si: 1.00% or less Mn: 2.00% or less Carbon content of 0.03% or more The reason is that at the contact interface between the dummy material and the titanium, which is the composite material, titanium carbide is precipitated during the heating and rolling process of the clad assembly, and after the rolling without rolling the release agent between the dummy material and titanium. Due to the amount of carbon required to make it easy to remove. When the carbon content is less than 0.03%, titanium carbide is not sufficiently precipitated at the interface between the dummy material and titanium, and peeling becomes difficult. In addition, the upper limit of carbon content
The reason why the content is 0.20%, the upper limit of the Si content is 1.00%, and the upper limit of the Mn content is 2.00% is to ensure weldability during the production of the clad assembly.
かかるダミー材の採用によりダミー材とチタンの間への
剥離剤の挿入が不要となり、剥離剤が接合界面（チタン
と中間材との間あるいは中間材と母材との間）を汚染し
接合強度低下を引き起すのを防止することができる。By adopting such a dummy material, it becomes unnecessary to insert a release agent between the dummy material and titanium, and the release agent contaminates the bonding interface (between titanium and the intermediate material or between the intermediate material and the base material) and the bonding strength is increased. It is possible to prevent the deterioration.
ダミー材の合せ材（チタン）に対向する面を研磨しスケ
ールを除去する理由 本発明においてはダミー材のチタンに対向する面を研磨
しスケールを除去している。これはダミー材のスケール
がチタンによって還元され不純物を含む鉄粉を生じるの
を防止するためである。これによりかかる不純物を含む
鉄粉が接合面にまわり込み、接合強度を低下させるの避
けることができる。The reason why the surface of the dummy material facing the mating material (titanium) is polished to remove the scale In the present invention, the surface of the dummy material facing the titanium is polished to remove the scale. This is to prevent the scale of the dummy material from being reduced by titanium and generating iron powder containing impurities. As a result, it is possible to prevent the iron powder containing such impurities from coming around to the joint surface and lowering the joint strength.
（実施例） 本発明に係るチタンクラッド鋼を添付図面に示すクラッ
ド組立体を用いて製造した。その際、母材１として使用
した鋼板、合せ材２として使用したチタン板、ダミー材
３として使用した鋼板および中間材4aとし使用した低炭
素鋼フォイルの組成を第１表に示す。なお、第１表には
示されていない中間材4bのニッケルは市販の純ニッケル
フォイルを使用した。(Example) A titanium clad steel according to the present invention was manufactured using a clad assembly shown in the accompanying drawings. Table 1 shows the compositions of the steel sheet used as the base material 1, the titanium sheet used as the laminated material 2, the steel sheet used as the dummy material 3 and the low carbon steel foil used as the intermediate material 4a. The nickel of the intermediate material 4b not shown in Table 1 was a commercially available pure nickel foil.
本実施例におけるクラッド組立体は母材１（厚さ120m
m）、チタン板合せ材（厚さ20mm）、中間材4aの低炭素
鋼（厚さ0.3mm）、中間材4bのニッケル（厚さ0.1mm）お
よびダミー材３（厚さ20mm）からなるものでこれを添付
図面に示すように、その全周辺部を当板５を使って溶接
６により密閉し、内部空隙部を10-2Torr.まで排気した
後、800℃に加熱して圧延を行った。圧延後得られたチ
タンクラッド鋼の厚さは母材12mm、ニッケル層0.01mm、
低炭素鋼層0.03mm、チタン合せ材2mm、ダミー材2mmであ
った。 The clad assembly in this embodiment is a base material 1 (thickness: 120 m
m), titanium plate mating material (thickness 20 mm), intermediate material 4a low carbon steel (thickness 0.3 mm), intermediate material 4b nickel (thickness 0.1 mm) and dummy material 3 (thickness 20 mm) Then, as shown in the attached drawing, the entire peripheral portion is closed by welding 6 using the contact plate 5, the internal void is evacuated to 10 -2 Torr., Then heated to 800 ° C and rolled. It was The thickness of the titanium clad steel obtained after rolling is 12 mm for the base metal, 0.01 mm for the nickel layer,
The low carbon steel layer was 0.03 mm, the titanium composite material was 2 mm, and the dummy material was 2 mm.
また比較のためダミー材のチタン対向面を研磨せず、ダ
ミー材とチタンとの間に剥離剤としてアルミナを塗布
し、その他の条件は実施例と同様とし、チタンクラッド
鋼を製造した。このチタンクラッド鋼と本発明にかかる
チタンクラッド鋼の機械的性質を比較して第２表に示
す。For comparison, a titanium clad steel was manufactured under the same conditions as in Examples except that the titanium facing surface of the dummy material was not polished, and alumina was applied as a release agent between the dummy material and titanium. Table 2 compares the mechanical properties of this titanium clad steel and the titanium clad steel according to the present invention.
（発明の効果） 第２表より明らかなごとく本発明に係るチタンクラッド
鋼は良好な機械的特性を示し、高い接合強度を有するも
のである。即ち、実施例クラッド鋼は比較例に対しほぼ
２倍近い剪断強さを示し、また曲げ試験の結果も良好で
ある。これらの結果は実施例クラッド鋼の優れた接合性
を示している。 (Effects of the Invention) As is clear from Table 2, the titanium clad steel according to the present invention exhibits good mechanical properties and high joint strength. That is, the clad steels of Examples show shear strength almost twice as high as that of Comparative Examples, and the bending test results are also good. These results show the excellent bondability of the example clad steels.
本発明によれば、チタンクラッド鋼の製造において、セ
ミサンドイッチ型クラッド組立体のダミー材と合せ材
（チタン）との間に剥離剤を用いず、加熱・圧延プロセ
スでチタンと中間材との間、中間材間（２種以上の中間
材を用いる場合）および中間材と母材との間の接合面を
汚染することがない。従って優れた接合性を有するチタ
ンクラッド鋼を製造する事ができるのである。According to the present invention, in the production of titanium clad steel, a release agent is not used between the dummy material and the laminated material (titanium) of the semi-sandwich type clad assembly, and the titanium-intermediate material is not heated between the titanium and the intermediate material in the heating / rolling process. , Between the intermediate materials (when two or more kinds of intermediate materials are used) and the joint surface between the intermediate material and the base material is not contaminated. Therefore, it is possible to manufacture a titanium clad steel having excellent bondability.
添付図面は、本発明にかかるクラッド鋼板の製造に用い
られるクラッド組立体の断面図である。 1:母材、2:合せ材 3:ダミー材、4a,4b:中間材 5:当板、6:溶接The accompanying drawings are cross-sectional views of a clad assembly used for manufacturing a clad steel plate according to the present invention. 1: Base material, 2: Laminated material 3: Dummy material, 4a, 4b: Intermediate material 5: Contact plate, 6: Welding
Claims (1)
材とで、１種類ないし２種類の金属中間材を狭持してク
ラッド組立て素材とし、さらに合せ材側にダミー材とし
て、C:0.03〜0.20重量％、Si:1.00重量％以下、Mn:2.00
重量％以下およびＰ、Ｓ等の不可避的不純物元素を通常
のレベルで含有する鋼であって、合せ材と対向する面が
スケールを除去した研磨面からなる鋼材を合わせ、ダミ
ー材、合せ材、母材の周辺を溶接で囲みセミサンドイッ
チ状クラッド組立体とし、内部空隙部の排気処理を施し
た後加熱・圧延を行うことを特徴とするチタンクラッド
鋼の製造方法。1. A steel material as a base material and a titanium material as a composite material, sandwiching one or two kinds of metal intermediate materials to form a clad assembly material, and a dummy material on the composite material side, C: 0.03 to 0.20% by weight, Si: 1.00% by weight or less, Mn: 2.00
A steel containing a weight% or less and unavoidable impurity elements such as P and S at a normal level, and a steel material having a surface opposite to the composite material and having a scale-removed polished surface is combined, a dummy material, a composite material, A method for producing titanium clad steel, characterized in that a base material is surrounded by welding to form a semi-sandwich clad assembly, and an internal void portion is exhausted and then heated and rolled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62201574A JPH0677858B2 (en) | 1987-08-12 | 1987-08-12 | Method for manufacturing titanium clad steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62201574A JPH0677858B2 (en) | 1987-08-12 | 1987-08-12 | Method for manufacturing titanium clad steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6444289A JPS6444289A (en) | 1989-02-16 |
| JPH0677858B2 true JPH0677858B2 (en) | 1994-10-05 |
Family
ID=16443317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62201574A Expired - Fee Related JPH0677858B2 (en) | 1987-08-12 | 1987-08-12 | Method for manufacturing titanium clad steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0677858B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9560371B2 (en) | 2003-07-30 | 2017-01-31 | Avocent Corporation | Video compression system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5865589A (en) * | 1981-10-12 | 1983-04-19 | Sumitomo Metal Ind Ltd | Rolling method for composite steel plate |
-
1987
- 1987-08-12 JP JP62201574A patent/JPH0677858B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9560371B2 (en) | 2003-07-30 | 2017-01-31 | Avocent Corporation | Video compression system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6444289A (en) | 1989-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |