JPS6347337A - Manufacture of roll for continuous casting - Google Patents
Manufacture of roll for continuous castingInfo
- Publication number
- JPS6347337A JPS6347337A JP19044986A JP19044986A JPS6347337A JP S6347337 A JPS6347337 A JP S6347337A JP 19044986 A JP19044986 A JP 19044986A JP 19044986 A JP19044986 A JP 19044986A JP S6347337 A JPS6347337 A JP S6347337A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- rolls
- continuous casting
- resistance
- surface layer
- 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
- 238000009749 continuous casting Methods 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 3
- 239000011651 chromium Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- 230000008646 thermal stress Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 241000270708 Testudinidae Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は連続鋳造用ロールの製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing rolls for continuous casting.
従来の技術
製鉄所の連続鋳造機の場合、鋳型内で半凝固状ＩＥとな
り１表面層のみが凝固し、内部は未凝固の状態である鋳
片は、二次冷却帯でスプレー状の水を吹き付けられ内部
の凝固が促進される。In the case of a conventional continuous casting machine in a steel mill, the slab, which becomes a semi-solid IE in the mold and only one surface layer solidifies and the inside is unsolidified, is sprayed with water in a secondary cooling zone. It is sprayed to promote internal coagulation.
この際、鋳片は溶鋼の静圧、冷却による熱応力等のため
変形し、ひいてはブレイクアウトを起こしやすいので、
ガイド機構としてロールが配置されている。ロールは、
同一円弧上に配置される場合が多く、このロール上で鋳
片の凝固、矯正引抜きが行なわれる。At this time, the slab deforms due to the static pressure of the molten steel, thermal stress due to cooling, etc., and is prone to breakout.
A roll is arranged as a guide mechanism. The roll is
These rolls are often arranged on the same arc, and solidification and straightening of the slab are performed on these rolls.
従って、連続鋳造用ロールは、高温の鋳片と接触し、そ
の後、冷却水により冷却されるという加熱・冷却の熱サ
イクルを受ける。Therefore, the continuous casting roll is subjected to a heating/cooling thermal cycle in which it comes into contact with a hot slab and is then cooled by cooling water.
しかも引抜き速度が一般に２蓋／朧ｉｎ以下と極めて遅
いため、通常のロールとは比較にならない苛酷な熱サイ
クルを受ける。Moreover, since the drawing speed is generally extremely slow, less than 2 lids/in, it is subjected to severe thermal cycles that are incomparable to ordinary rolls.
連続鋳造用ロールの中でも矯正、引抜き用ロールは、鋳
片の矯正、引抜きをするため、機械的負荷が高くなり、
ロールが鋳片に強く押しつけられるため、ロール温度が
上昇し熱応力が高くなる。Among continuous casting rolls, straightening and drawing rolls have a high mechanical load because they straighten and pull out slabs.
Since the roll is strongly pressed against the slab, the roll temperature rises and thermal stress increases.
また、鋳片の幅変更、タンデイツシュ交換等の場合、引
抜き速度が極端に遅くなるため、鋳片と接触しているロ
ールの片面のみが高い温度に加熱され高い熱応力を生ず
る。Furthermore, when changing the width of the slab or replacing the tundish, the drawing speed becomes extremely slow, and only one side of the roll that is in contact with the slab is heated to a high temperature, resulting in high thermal stress.
連続鋳造用ロールは、以上のような苛酷な熱サイクルで
使用されるため、加熱拳冷却のくりかえしによりロール
表面に早期に熱亀裂が発生し、発達して折損に至ること
もある。Continuous casting rolls are used under such severe thermal cycles as described above, so repeated heating and cooling may cause thermal cracks to form on the roll surface at an early stage, develop, and even lead to breakage.
また、高温の鋳片との接触によるロールの高温酸化摩耗
および冷却水による腐食摩耗は鋳片の品質上厳しく規制
される。In addition, high-temperature oxidation wear of the rolls due to contact with high-temperature slabs and corrosion wear due to cooling water are strictly regulated in terms of the quality of the slabs.
そのため連続鋳造用ロールは、優れた耐熱亀裂性と耐摩
耗性が要求されている。Therefore, rolls for continuous casting are required to have excellent heat cracking resistance and wear resistance.
従来、連続鋳造用ロールとしては、これらの特性に優れ
た高クロームステンレス系の肉盛溶接ロールおよび遠心
鋳造スリーブロールが使用され良好な成績を収めてきた
。Hitherto, high chromium stainless steel build-up welding rolls and centrifugal casting sleeve rolls, which have excellent properties, have been used as continuous casting rolls and have achieved good results.
しかし、最近連々鋳化の推進−圧縮鋳造の採用等ロール
に加わる負荷は益々増大しており、高クロームステンレ
ス系の肉感溶接ロール及び遠心鋳造スリーブロールの場
合でもシャープで深いクラックが早期に発生したり、ロ
ールの肌荒れ摩耗が大きい等、従来とは異なった様々の
問題が発生してきている。特に、シャープなりラックが
発生して折損するケースが大きな問題となっている。However, with the recent promotion of casting and the adoption of compression casting, the load applied to rolls has been increasing, and even in the case of high-chromium stainless steel texture welding rolls and centrifugally cast sleeve rolls, sharp and deep cracks occur early. Various problems have arisen that are different from those of the past, such as rough surface wear and rough surface wear of the rolls. In particular, the occurrence of sharp racks and breakage has become a major problem.
また、最近、省エネルギーを目的として鋳片及びロール
への冷却を極端に少なくするかあるいは省略した高温連
鋳化が進められており、その場合、ロールに加わる熱負
荷は、従来のｉ！１ＵＰＩ機よりはるかに高くなると予
想される。従って従来の肉感溶接ロールあるいは遠心鋳
造鋳鋼ロールでは対応困難なのが実情である。Furthermore, in recent years, high-temperature continuous casting has been promoted in which cooling of slabs and rolls is extremely reduced or omitted for the purpose of energy saving.In this case, the thermal load applied to the rolls is lower than that of the conventional i! It is expected to be much more expensive than the 1UPI machine. Therefore, the reality is that it is difficult to use conventional tactile welding rolls or centrifugally cast cast steel rolls.
特公昭５９−１４１０１号公報記載の耐折損性の優れた
連続鋳造用ロールでは、Ｃｒ７〜２０％のステンレスロ
ールの胴部に耐食性・耐熱や耐摩耗・耐密着性向上のた
めにＮｉ基又はＣｏ基の合金（ｅｘ７０〜８０％含有）
を厚さ０．０５〜０．８■に溶射肉盛し、溶射層を溶融
処理（加熱）してロール母材と冶金的に結合させたもの
は、連鋳ロールの使用が始まると材質の差もあり早期に
溶射層全体に亀甲状の微細クラックが入り、これがロー
ルに転写してロール表面のみ浅いクラックが入る。これ
が、熱応力を分散させ、深いクラックは入らず、結局ロ
ール折損しずらくなり長寿命となる。In the continuous casting roll with excellent breakage resistance described in Japanese Patent Publication No. 59-14101, the body of the stainless steel roll containing 7 to 20% Cr is coated with Ni or Co to improve corrosion resistance, heat resistance, abrasion resistance, and adhesion resistance. Base alloy (ex70-80% content)
When the continuous casting roll starts to be used, the material quality changes. There is also a difference: microscopic cracks in the shape of a tortoise shell appear throughout the sprayed layer at an early stage, and these are transferred to the roll, resulting in shallow cracks appearing only on the roll surface. This disperses thermal stress, prevents deep cracks, and ultimately makes the roll less likely to break, resulting in a longer life.
発明が解決しようとする問題点
しかし、この方法は、耐折損性には優れているが、熱間
（稼動中）に於て、溶射層の耐摩耗性が不足し摩耗によ
り寿命となり不十分であった。Problems to be Solved by the Invention However, although this method has excellent breakage resistance, the abrasion resistance of the thermal sprayed layer is insufficient during hot conditions (during operation), and the lifespan is shortened due to wear. there were.
問題点を解決するための手段
本発明は、これらの欠点を解消することを目的とするも
のでロール胴部表面に高Ｃｒステンレス系の肉盛溶接を
行なった後、加熱・急冷の熱処理を施すことにより、早
期に微細亀裂を発生させ応力分散を図り亀裂伸展を抑制
させ、耐折損性を向上させ、併せて、耐摩耗性において
も優れた特性を有する連続鋳造用ロールの製造方法を提
供するものである。Means for Solving the Problems The present invention aims to eliminate these drawbacks, and after overlaying high Cr stainless steel on the surface of the roll body, heat treatment by heating and rapid cooling is performed. To provide a method for producing a continuous casting roll that generates microcracks early, distributes stress, suppresses crack extension, and improves breakage resistance, and also has excellent wear resistance. It is something.
すなわち、本発明は、連続鋳造用ロールのロール胴部表
面に高Ｃｒステンレス系の肉盛溶接を行なった後、熱処
理を施すことによりロール表層部を硬くさせるため靭性
低く、鋳片引抜き時の加熱中冷却により発生する熱応力
に追従し得なくなり、５０〜１００ｃｈ程度の早期にお
いて微細亀裂を発生させ、応力分散を図り、亀裂伸展を
抑制させ、耐折損性を向上させ、かつロール表層部が硬
いため耐摩耗性は従来肉盛量より２〜３割向上させるこ
とを可能とした連続鋳造ロールの製造方法である。That is, the present invention performs overlay welding of high Cr stainless steel on the roll body surface of a roll for continuous casting, and then heat-treats it to harden the roll surface layer, resulting in low toughness and low heat resistance when drawing slabs. It becomes impossible to follow the thermal stress generated by medium cooling, and micro-cracks occur at an early stage of about 50 to 100 channels, and the stress is dispersed, crack extension is suppressed, breakage resistance is improved, and the roll surface layer is hard. Therefore, this method of manufacturing continuous casting rolls makes it possible to improve the wear resistance by 20 to 30% compared to the conventional overlay amount.
作用 以下、本発明の詳細な説明する。action The present invention will be explained in detail below.
本発明に使用するロール素材は、高Ｃｒステンレス系の
肉盛溶接ロール、遠心鋳造スリーブロール、ＰＪ鋼ロー
ル等に用いられる耐熱争耐摩耗書耐食・耐熱亀裂性に優
れたロール素材が好ましい。The roll material used in the present invention is preferably a roll material that has excellent heat resistance, wear resistance, corrosion resistance, and heat crack resistance, and is used for high Cr stainless steel overlay weld rolls, centrifugal casting sleeve rolls, PJ steel rolls, etc.
本発明における熱処理ロールは、高Ｃｒステンレス系の
肉感溶接を行なった後、ロール表面を熱処理することに
より所定の性能を得るものである。The heat-treated roll of the present invention obtains a predetermined performance by heat-treating the roll surface after performing sensuous welding of high Cr stainless steel.
この熱処理を行なうことにより、ロールが高温の鋳片と
接触した場合にロール表面に早期に微細亀裂が発生し、
応力分散が可能となり、亀裂伸展が抑制され耐折損性が
向上する。By performing this heat treatment, micro-cracks occur early on the roll surface when the roll comes into contact with hot slabs.
Stress distribution becomes possible, crack extension is suppressed, and breakage resistance is improved.
本発明の実施態様を列記すると以下の通りである。The embodiments of the present invention are listed below.
■ロール胴部表面に高Ｃｒステンレス系の肉盛溶接を行
なった後、加熱中急冷の熱処理を施すことにより、早期
に微細亀裂を発生させ応力分散を図り亀裂伸展を抑制さ
せ耐折損性を向上させた連続鋳造ロールである。■After overlaying high Cr stainless steel on the surface of the roll body, a heat treatment of rapid cooling during heating is performed to generate microcracks early, disperse stress, suppress crack extension, and improve breakage resistance. This is a continuous casting roll.
■ロール胴径は１００〜６００層履φおよび調髪は５０
０〜３０００蕩■９が適当である。■Roll body diameter is 100 to 600 layers φ and hair style is 50
A value of 0 to 3,000 yen is appropriate.
■ロール表面の硬さはＨｓ４５〜４８が適当である。(2) Appropriate hardness of the roll surface is Hs45-48.
■ロール素材のＯｒ含有量としては通常７〜２０％の範
囲であり、２０％を超えると効果の割には高価格となり
得策ではない、又肉盛の厚さは２層層程度から３０ｍｍ
程度が通常の範囲である。３０■■超は同様に効果の割
にコストアップが大で有利ではない。■The Or content of the roll material is usually in the range of 7 to 20%, and if it exceeds 20%, it will be expensive compared to the effect and is not a good idea.Also, the thickness of the overlay should be from about 2 layers to 30 mm.
The degree is within the normal range. 30 ■■ and above are similarly not advantageous as the cost increase is large compared to the effect.
■加熱・急冷の熱処理条件についても特に限定するもの
ではないが、１０００〜１２００℃程度に加熱後、木等
の冷却媒体で急冷する方法が通常用いられる。(2) There are no particular limitations on the heat treatment conditions for heating and quenching, but a method of heating to about 1,000 to 1,200°C and then quenching with a cooling medium such as wood is usually used.
実施例 次に本発明を実施例にもとずいて説明する。Example Next, the present invention will be explained based on examples.
３ＥｆＯｍｍφＸ １８００ｍ社の３本のロール胴部表
面に肉厚５ｇｇｍの溶接肉感（表１−Ｎｏ、１）を行な
い、その中の２木のうち１本は、さらに特公昭５９−１
４１０１号公報記載の溶射肉盛（表１−Ｎｏ、２）を肉
厚０．２１行ない、他の１木は溶接後、プロパンと酸素
の混合ガス使用により加熱後水冷する焼入れ処理を行な
った。3EfOmmφ
Thermal spray overlay described in Japanese Patent No. 4101 (Table 1-No. 2) was applied to a thickness of 0.21, and after welding, the other wood was quenched by heating with a mixed gas of propane and oxygen and cooling with water.
この３本のロールを使用条件の最も苛酷な連続鋳造機の
弯曲部に組み込み使用したところ、肉盛溶接のみのロー
ルｌは第１図（１）の如＜ ５００チヤージの時点で円
周方向のシャープな熱亀裂（クラック深さ ＭａｘＳ層
層）２が発生し、３０００チヤージで第１図（２）に示
す如く最大クラックの深さが３０ｖｍに達したため折損
の危険があり取外した。When these three rolls were installed and used in a curved part of a continuous casting machine with the most severe operating conditions, the roll L with only overlay welding showed a change in the circumferential direction at <500 charge as shown in Fig. 1 (1). Sharp thermal cracks (crack depth MaxS layer) 2 occurred, and the maximum crack depth reached 30 vm at 3000 charges as shown in Figure 1 (2), so it was removed due to the risk of breakage.
又、特公昭５９−１４１０１号公報記載の溶射肉盛ロー
ル１′は第２図（１）〜（３）に示す様に亀裂は少なく
良好なるもロールの摩耗量が５００チヤージでは、第２
図（１）の如く径で０．２■減少、３０００チヤージで
は、第２図（２）の如く径で１．２＋＊ｍ減少、５００
０チヤージでは、第２図（３）の如く径で２．０■減少
し、摩耗３が進行したため操業上の制約から取外した。Furthermore, although the thermal spray overlay roll 1' described in Japanese Patent Publication No. 59-14101 has few cracks and is in good condition as shown in Figures 2 (1) to (3), the wear amount of the roll is 500 charges.
As shown in Figure (1), the diameter decreases by 0.2cm, and at 3000 charges, as shown in Figure 2 (2), the diameter decreases by 1.2+*m, and at 500
At 0 charge, the diameter decreased by 2.0 cm as shown in Figure 2 (3), and wear 3 progressed, so it was removed due to operational constraints.
本発明の良亀裂発生熱処理ロール１″は、第３図（１）
の如く５００チヤージでは深さ０．２】■の微細クラッ
クがロール表層に多数発生し、３０００チヤージでは第
３図（２）に示す如くロール表面の摩耗３はほとんど無
く第３図（２）で最大亀裂深さ１．０ｍｍと良好に経過
し、５０００チヤージでも第３図（３） の如く摩耗径
で１．０ｍｍ 、最大亀裂ｆｉす２．Ｏ＋ｓｍ 、 １
００００チヤージでも第３図（０に示す様に亀裂深さ３
．０ｍｍと良好な結果である。The heat treated roll 1'' with good cracking of the present invention is shown in Fig. 3 (1).
At 500 charges, many fine cracks with a depth of 0.2]■ occurred on the roll surface layer, and at 3000 charges, as shown in Figure 3 (2), there was almost no wear 3 on the roll surface, as shown in Figure 3 (2). The maximum crack depth was 1.0 mm, which progressed well, and even after 5,000 charges, the wear diameter was 1.0 mm and the maximum crack fi2. as shown in Figure 3 (3). O+sm, 1
Even at a charge of 0000, the crack depth is 3 as shown in Figure 3 (0).
．． This is a good result of 0 mm.
（以下余白）
発明の効果
以上述べた様に本発明は、耐摩耗性・耐折損性に優れた
おり、従来例に比して＃摩耗性は、例えば５０００チヤ
ージ→１００００チヤージへ延び、耐折損性も１ｏｏｏ
ｏチヤ一ジ以上は確保可能となるなどきわめて優れた効
果を得た。(Left below) Effects of the Invention As mentioned above, the present invention has excellent wear resistance and breakage resistance. Sex is also 1ooo
We achieved extremely excellent results, such as being able to secure more than one o charge.
第１図（１） 、 （２）は、ロール調部表面に溶射層
を肉盛しない場合の、５００チヤージ、３０００チヤー
ジにおけるクラック分布を示す図、第２図（＋）、（２
） 、 （３）は、特公昭５９−１４１０１号公報に記
載された溶射ロールの５００チヤージ、 ３０００チヤ
ージ、５０００チヤージにおける摩耗状況を示す図、第
３図（１） 、 （２） 、 （３） 、 （４）は本
発明に従いロール表層に５０〜１００ｃｈ程度で微細亀
裂を発生させるロールの場合の、 ５００チヤージ、３
０００チヤージ、５０００チヤージ、１００００チヤー
ジ毎の分布の経過を示す図である。
１１１′、 １＃・壷・ロール、２１１ ＃・亀裂、３
・・・摩耗。Figure 1 (1) and (2) are diagrams showing the crack distribution at 500 charge and 3000 charge when no thermal spray layer is built up on the surface of the roll adjustment part, and Figure 2 (+) and (2).
), (3) are diagrams showing the wear status of the thermal spray roll at 500 charges, 3000 charges, and 5000 charges, as described in Japanese Patent Publication No. 14101/1981, Figure 3 (1), (2), (3) , (4) is for a roll in which micro-cracks are generated at about 50 to 100 channels on the roll surface layer according to the present invention, 500 charges, 3
It is a figure which shows the progress of the distribution for every 000 charge, 5000 charge, and 10000 charge. 111', 1#, jar, roll, 211#, crack, 3
···wear.
Claims (1)
った後、加熱・急冷の熱処理を施すことを特徴とする連
続鋳造用ロールの製造方法。A method for manufacturing a roll for continuous casting, characterized by performing overlay welding of high Cr stainless steel on the surface of the roll body, and then subjecting it to heat treatment of heating and rapid cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19044986A JPS6347337A (en) | 1986-08-15 | 1986-08-15 | Manufacture of roll for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19044986A JPS6347337A (en) | 1986-08-15 | 1986-08-15 | Manufacture of roll for continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6347337A true JPS6347337A (en) | 1988-02-29 |
Family
ID=16258313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19044986A Pending JPS6347337A (en) | 1986-08-15 | 1986-08-15 | Manufacture of roll for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6347337A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766378A (en) * | 1995-11-06 | 1998-06-16 | Ag Industries, Inc. | Stainless steel surface claddings of continuous caster rolls |
| US5927378A (en) * | 1997-03-19 | 1999-07-27 | Ag Industries, Inc. | Continuous casting mold and method |
| US9174293B2 (en) | 2010-12-16 | 2015-11-03 | Caterpillar Inc. | Hardfacing process and parts produced thereby |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165164A (en) * | 1981-03-31 | 1982-10-12 | Hitachi Zosen Corp | Production of roll for continuous casting installation |
-
1986
- 1986-08-15 JP JP19044986A patent/JPS6347337A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165164A (en) * | 1981-03-31 | 1982-10-12 | Hitachi Zosen Corp | Production of roll for continuous casting installation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766378A (en) * | 1995-11-06 | 1998-06-16 | Ag Industries, Inc. | Stainless steel surface claddings of continuous caster rolls |
| US5927378A (en) * | 1997-03-19 | 1999-07-27 | Ag Industries, Inc. | Continuous casting mold and method |
| US9174293B2 (en) | 2010-12-16 | 2015-11-03 | Caterpillar Inc. | Hardfacing process and parts produced thereby |
| US10167529B2 (en) | 2010-12-16 | 2019-01-01 | Caterpillar Inc. | Hardfacing process and parts produced thereby |
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