JPS62180082A - Production of clad steel sheet - Google Patents
Production of clad steel sheetInfo
- Publication number
- JPS62180082A JPS62180082A JP61020208A JP2020886A JPS62180082A JP S62180082 A JPS62180082 A JP S62180082A JP 61020208 A JP61020208 A JP 61020208A JP 2020886 A JP2020886 A JP 2020886A JP S62180082 A JPS62180082 A JP S62180082A
- Authority
- JP
- Japan
- Prior art keywords
- billet
- clad steel
- molten metal
- steel
- liquid drops
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract 3
- 238000000151 deposition Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 abstract description 23
- 238000005253 cladding Methods 0.000 abstract description 11
- 238000002844 melting Methods 0.000 abstract description 8
- 230000008018 melting Effects 0.000 abstract description 8
- 239000002344 surface layer Substances 0.000 abstract description 3
- 239000011261 inert gas Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 4
- 238000002791 soaking Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- 239000011162 core material Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910000792 Monel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/123—Spraying molten metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はクラッド鋼板の製造方法に関するものであり、
特にクラッド比を任意に変化させることができ、芯材を
溶解させることなく接着性の良いクラッド鋼板を生産性
良く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 method for manufacturing a clad steel plate,
In particular, the present invention relates to a method for manufacturing a clad steel plate with good adhesiveness with good productivity, by which the cladding ratio can be arbitrarily changed, and without melting the core material.
（従来の技術）
従来、クラッド鋼を製造する方法とし−では、圧延圧接
法、溶接肉盛法、爆着法、鋳包み法が知られている。(Prior Art) Conventionally, known methods for manufacturing clad steel include a rolling pressure welding method, a welding overlay method, an explosion bonding method, and a cast-in method.
また、特開昭５８−ｉ１９４３８号公報には、Ｒいに間
隔をおいて対設した無端の耐熱性ベルトを同一周速、同
一方向に移動させて、この耐熱ベルトの背面を強制冷却
するとともに耐熱ベルトの表面に金属ストリップを走行
させながら、溶融金属を供給する金属クラッド材料の連
続鋳造方法が記載されている。Furthermore, Japanese Patent Application Laid-open No. 58-i19438 discloses that endless heat-resistant belts placed opposite each other at a radius of 500 mm are moved at the same circumferential speed and in the same direction, and the back surface of the heat-resistant belt is forcibly cooled. A continuous casting method for metal cladding material is described in which molten metal is supplied while a metal strip is running on the surface of a heat-resistant belt.
さらに、特公昭４６−４３６８８＠公報には、連続的に
移動する薄板上に液滴化した金烏を吹ぎ付けるコーティ
ング法が記載されている。Furthermore, Japanese Patent Publication No. 46-43688@ describes a coating method in which droplets of gold are sprayed onto a continuously moving thin plate.
（発明が解決しようとする問題点）
前述した圧延圧接法は、接合すべき表面を研摩し時には
更にＮ１メッキなどを施した後、周縁を溶接したりする
ので圧延前の処理に手間がかかり、量産に適した方法で
ない。また、溶接肉盛法は、母材を成形加工した債のク
ラッド化には適しておりノズルやフランジ等の部品への
応用に有利な反面、クラッド囮の組成が溶接条件に直接
支配されるほか面積が大きい場合には生産性が良くない
。(Problems to be Solved by the Invention) The above-mentioned rolling pressure welding method involves polishing the surfaces to be joined and sometimes further applying N1 plating, etc., and then welding the peripheral edges, which requires time and effort in processing before rolling. This is not a method suitable for mass production. In addition, the weld overlay method is suitable for cladding bonds made from molded base metals and is advantageous for application to parts such as nozzles and flanges, but on the other hand, the composition of the cladding decoy is directly controlled by the welding conditions. Productivity is not good if the area is large.
また、爆着法は材料の組合ゼの種類が多く小サイズのク
ラッド材の製造に適しているが、面積の大きい板をクラ
ッド化するのには適していない。また、鋳造包み法は鋳
込中に芯材が溶解したり、歩留りが低い等の問題がある
。In addition, the explosion bonding method has many types of material combinations and is suitable for manufacturing small-sized cladding materials, but is not suitable for cladding large-area plates. Furthermore, the casting and wrapping method has problems such as melting of the core material during casting and low yield.
以上述べた従来法はコスト面で問題があり、大量生産に
適していないという問題があった。この点、特開昭５８
−１１９４３８Ｑ公報に記載されている方法は大量生産
に適した方法であるが、クラッド比が任意にとれず、供
給する金属ストリップが溶解したりする問題がある。ま
た、特公昭４６−４３６８８号公報に記載されている方
法は、薄板上に落下したコーテイング材粒滴が急冷され
るため薄板とコーテイング材との接着性が悪く、例えば
この方法で製造した薄板を加工した鍋を使用すると熱膨
張率の差により、コーテイング材が剥離するという問題
がある。The conventional methods described above have problems in terms of cost and are not suitable for mass production. On this point, JP-A-58
Although the method described in Publication No. 119438Q is suitable for mass production, there are problems in that the cladding ratio cannot be set arbitrarily and the supplied metal strip may melt. Furthermore, in the method described in Japanese Patent Publication No. 46-43688, droplets of the coating material that have fallen onto the thin plate are rapidly cooled, resulting in poor adhesion between the thin plate and the coating material. When a processed pot is used, there is a problem in that the coating material peels off due to the difference in coefficient of thermal expansion.
本発明の目的は、芯材が溶解せずに、クラッド比が任意
に変えられ、しかも接着性の良いクラッド鋼板を生産性
良く製造する方法を提供することにある。An object of the present invention is to provide a method for manufacturing a clad steel plate with good productivity, in which the cladding ratio can be arbitrarily changed without melting the core material, and which has good adhesive properties.
（問題点を解決するための手段）
本発明は、５００’Ｃ以上に予熱した鋼片を移動させつ
つ、溶湯をガス′Ｃ哨霧して１ｑられる液滴を該鋼片の
表面に堆積させた復圧延することを特徴と１６クラッド
鋼板の製造方法である。(Means for Solving the Problems) The present invention involves moving a steel billet preheated to 500'C or higher and atomizing the molten metal with gas to deposit 1q droplets on the surface of the steel billet. This is a method for manufacturing 16 clad steel sheets, which is characterized by performing back rolling.
上記クラッド鋼板のクラッド比を変えるには、溶あの供
給速度を変えたり、鋼片の移動速度を変えることにより
達成できる。The clad ratio of the clad steel plate can be changed by changing the supply rate of the melt or by changing the moving speed of the steel billet.
また、鋼片の予熱には、高周波加熱、抵抗発熱体等の加
熱方法を採用する。In addition, heating methods such as high frequency heating and resistance heating elements are used to preheat the steel pieces.
（作用）
本発明法では溶湯をガスで噴霧しているので、得られる
液滴は鋼片上に達するまでにガスで冷却され、不完全な
がら液滴の表層部は凝固しているために芯材となる鋼片
が溶解することがない。(Function) In the method of the present invention, the molten metal is atomized with gas, so the resulting droplets are cooled by the gas before reaching the steel slab, and the surface layer of the droplets is partially solidified, so the core material The steel pieces will not melt.
また、鋼片の予熱温度と圧延後のクラッド鋼の接合状態
の関係を第１図に示す。この図からも判るように、鋼片
を５００℃以上に予熱することにより、接着性が向上す
ることが判る。このクラッド鋼の接着面をＥＰＭＡで１
察すると、クラッド材と鋼片が互いに拡散し冶金的に接
合していることから、鋼片の温度を５００℃以上にする
ことにより拡散速度が大きくなり、接着性が向上するも
のと推定される。Moreover, the relationship between the preheating temperature of the steel billet and the welding state of the clad steel after rolling is shown in FIG. As can be seen from this figure, adhesion is improved by preheating the steel piece to 500°C or higher. The adhesive surface of this clad steel is coated with EPMA.
As it seems, the cladding material and the steel billet diffuse into each other and are metallurgically bonded, so it is presumed that raising the temperature of the steel billet to 500°C or higher will increase the diffusion rate and improve adhesion. .
さらに、鋼片を連続的に移動させることにより、生産性
良くクラッド鋼板を製造できる。Furthermore, by continuously moving the steel pieces, clad steel plates can be manufactured with high productivity.
（実施例） 本発明法を実施するための装置を第２図に示す。(Example) An apparatus for carrying out the method of the invention is shown in FIG.
この装置は、鋼片１を予熱するための予熱装置４を設け
たチェンバー３と、チェンバー３と隣接して設（ブられ
た灼熱炉６と、灼熱炉の出側に設けられた圧延ロール７
と、チェンバー３の上部に設けられたタンディツシュ９
と、タンディツシュのノズル直下に設けられた噴霧用ノ
ズル１１とがら構成されている。さらに、鋼片１を搬送
するためのローラー２がチェンバー３の挿入側よりチェ
ンバー３、灼熱炉６内から圧延ロール７の位置まで設け
られており、チェンバー３の挿入側には更にピンチロー
ル１０が設けられている。前記チェンバー３内は、液滴
の酸化防止ど鋼片表層の酸化を防止して、鋼片とクラッ
ド材との接着性を向上させるために不活性雰囲気に保た
れている。また、Ｗ３瀾５は取ｍＢおよびタンディツシ
ュ９を通してチェンバー内に供給され、噴霧用ノズル１
１から噴射された不活性ガスにより液滴化され、ローラ
ー２上を連続的に移動する鋼片１上にこの液滴１３が堆
積するようになっている。This device consists of a chamber 3 equipped with a preheating device 4 for preheating a steel billet 1, a scorching furnace 6 installed adjacent to the chamber 3, and a rolling roll 7 provided on the exit side of the scorching furnace.
and the tandish 9 installed at the top of the chamber 3.
and a spray nozzle 11 provided directly below the nozzle of the tandish. Further, rollers 2 for conveying the steel slab 1 are provided from the insertion side of the chamber 3 to the chamber 3 and from the inside of the scorching furnace 6 to the rolling roll 7, and a pinch roll 10 is further provided on the insertion side of the chamber 3. It is provided. The interior of the chamber 3 is maintained in an inert atmosphere in order to prevent oxidation of droplets and the surface layer of the steel piece, thereby improving the adhesion between the steel piece and the cladding material. Further, W3 flow 5 is supplied into the chamber through the intake mB and the tundish 9, and is supplied to the spray nozzle 1.
The droplets 13 are formed into droplets by the inert gas injected from the steel plate 1, and are deposited on the steel piece 1 which is continuously moving on the roller 2.
（実施例１）
Ｃが０．１８重岱％、Ｓｉが０．２６重量％、Ｍｎが０
．７５重間％、Ｐが０．０１２重量％、Ｓが０．０１５
重（６）％の一般構造用圧延鋼材で、長さ２，０００ｍ
ｍ、幅５００ｍｍ 、厚み１２０ｍｍの鋼片を供給速度
１ｍ／ｎ１ｉｎでチェンバー内に連続的に供給し、チェ
ンバー内に設けられた高周波加熱コイルにより鋼片が１
００℃になるまで予熱した。一方、５ＵＳ３０４の溶湯
を１５０＋＋ｇ／ ｍ ｉ ｎの供給速度で供給すると
ともに３ＯＮＷ１３／ｍｉｎの供給速度で供給されるア
ルゴンガスを溶湯に吹き付けて液滴化させた。鋼片の表
面に堆積した液滴の厚みは４０ｍｍであった。この後、
鋼片は灼熱炉を通り、圧延ロールで圧下比が４、即ち元
厚の１／４となるように圧延した。(Example 1) C: 0.18% by weight, Si: 0.26% by weight, Mn: 0
．． 75% by weight, P 0.012% by weight, S 0.015%
Made of general structural rolled steel with a weight of (6)%, the length is 2,000 m.
A steel billet with a width of 500mm and a thickness of 120mm is continuously fed into the chamber at a feeding speed of 1m/n1in, and the steel billet is
It was preheated to 00°C. On the other hand, 5US304 molten metal was supplied at a supply rate of 150++ g/min, and 3ONW argon gas supplied at a supply rate of 13/min was blown onto the molten metal to form droplets. The thickness of the droplets deposited on the surface of the steel piece was 40 mm. After this,
The steel slab passed through a scorching furnace and was rolled with rolling rolls at a reduction ratio of 4, ie, 1/4 of the original thickness.
圧延後のクラッド鋼は、１８００捻試験で全く剥離が認
められなかった。また、鋼片の溶解は全く認められなか
った。The clad steel after rolling showed no peeling at all in the 1800 twist test. Furthermore, no melting of the steel pieces was observed.
（実施例２）
Ｃが０．２０ Ｆｉ１％、Ｓｌが０．１５重量％、Ｍｎ
が１．０重量％、Ｐがｏ、ｏｉｉ重量％、Ｓが０．０１
２重φ％の一般構造用圧延鋼材で、長さ２，０００ｍ１
ｎ 、幅５００ｍｍ 、厚み１２０ｍｍの鋼片を供給速
度２ｍ／ｍｉｎでチェンバー内に連続的に供給し、チェ
ンバー内に設けられた高周波加熱コイルで鋼片が６００
℃になるまで予熱した。一方モネル（７ＯＮｉ −３０
ＣＵ ）の溶湯を８０ｋｇ／ｍｉｎの供給速度で供給し
、この溶湯に対して１６Ｎｍ３／ｍｉｎの供給速度で供
給されるアルゴンガスを吹き付けて液滴化させた。鋼片
の表面に堆積した液滴の厚みは１０ｍｍであった。この
後、鋼片は灼熱炉を通り、圧延ロールで圧下比が４、即
ち元厚１／４となるように圧延した。(Example 2) C: 0.20 Fi: 1%, Sl: 0.15% by weight, Mn
is 1.0% by weight, P is o, oii% by weight, S is 0.01%
Double φ% general structural rolled steel material, length 2,000m1
A steel billet with a width of 500 mm and a thickness of 120 mm was continuously fed into the chamber at a feeding speed of 2 m/min, and the steel billet was heated to 600 mm by a high-frequency heating coil installed in the chamber.
Preheated to ℃. On the other hand, Monel (7ONi-30
A molten metal (CU) was supplied at a supply rate of 80 kg/min, and argon gas supplied at a supply rate of 16 Nm3/min was blown onto the molten metal to form droplets. The thickness of the droplets deposited on the surface of the steel piece was 10 mm. Thereafter, the steel slab passed through a scorching furnace and was rolled with rolling rolls at a reduction ratio of 4, that is, the original thickness was 1/4.
圧延後のクラッド鋼は、１８０°捻試験で全く剥離が認
められず、鋼片の溶解も全く認められなかった。In the 180° twist test, no peeling was observed in the rolled clad steel, and no melting of the steel pieces was observed.
く比較例）
チェンバー内に供給する鋼片の予熱温度を３００℃どじ
た以外は実施例１と同じ条件でクラッド鋼を製造した。(Comparative Example) Clad steel was manufactured under the same conditions as in Example 1, except that the preheating temperature of the steel billet supplied into the chamber was changed by 300°C.
この場合、鋼片の゛溶解は認められなかったが、１８０
°捻試験では剥離が生じた。In this case, no melting of the steel pieces was observed, but
°Delamination occurred in the twist test.
以上の実施例１、実施例２および比較例の条件を第１表
に示す。Table 1 shows the conditions of the above Example 1, Example 2, and Comparative Example.
（発明の効果）
以上説明したように本発明法によれば、芯材の溶解が防
止できるとともにクラッド比が任意にとれて、しかも生
産性良くクラッド鋼を製造できる。(Effects of the Invention) As explained above, according to the method of the present invention, melting of the core material can be prevented, the clad ratio can be arbitrarily set, and clad steel can be manufactured with high productivity.
第１図は鋼片予熱温度と剥離度との関係を示す図であり
、第２図は本発明法を実施するための装置を示す図であ
る。
１・・・鋼片 ２・・・ローラー３・・・
チェンバー ４・・・予熱装置５・・・溶湯
６・・・灼熱炉７・・・圧延ロール
８・・・取鍋９・・・タンディツシュ １０・・・ピ
ンチロール１１・・・噴霧用ノズル １２・・・堆
積物１３・・・液滴
第１図
鋼片子＠孟度（’Ｃ）FIG. 1 is a diagram showing the relationship between steel billet preheating temperature and degree of peeling, and FIG. 2 is a diagram showing an apparatus for carrying out the method of the present invention. 1... Steel piece 2... Roller 3...
Chamber 4... Preheating device 5... Molten metal
6...Scorching furnace 7...Rolling roll
8... Ladle 9... Tundish 10... Pinch roll 11... Spray nozzle 12... Deposit 13... Droplet Figure 1 Slab @ Mengdu ('C)
Claims (1)
つ該鋼片の表面に溶湯を噴霧して得られる液滴を堆積さ
せた後圧延することを特徴とするクラッド鋼板の製造方
法。1. A method for producing a clad steel plate, which comprises continuously moving a steel billet preheated to 500° C. or higher and depositing droplets obtained by spraying molten metal onto the surface of the steel billet, followed by rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61020208A JPS62180082A (en) | 1986-02-03 | 1986-02-03 | Production of clad steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61020208A JPS62180082A (en) | 1986-02-03 | 1986-02-03 | Production of clad steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62180082A true JPS62180082A (en) | 1987-08-07 |
Family
ID=12020746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61020208A Pending JPS62180082A (en) | 1986-02-03 | 1986-02-03 | Production of clad steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62180082A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327982C (en) * | 2005-11-04 | 2007-07-25 | 江苏法尔胜技术开发中心 | Method for preparing metal ceramic gradient coated steel plate by self-stretching continuous mill |
-
1986
- 1986-02-03 JP JP61020208A patent/JPS62180082A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327982C (en) * | 2005-11-04 | 2007-07-25 | 江苏法尔胜技术开发中心 | Method for preparing metal ceramic gradient coated steel plate by self-stretching continuous mill |
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