JPH0774411B2 - High wear resistance rolling material for rolling - Google Patents
High wear resistance rolling material for rollingInfo
- Publication number
- JPH0774411B2 JPH0774411B2 JP61185288A JP18528886A JPH0774411B2 JP H0774411 B2 JPH0774411 B2 JP H0774411B2 JP 61185288 A JP61185288 A JP 61185288A JP 18528886 A JP18528886 A JP 18528886A JP H0774411 B2 JPH0774411 B2 JP H0774411B2
- Authority
- JP
- Japan
- Prior art keywords
- wear resistance
- rolling
- content
- range
- roll
- 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
- 239000000463 material Substances 0.000 title claims description 21
- 238000005096 rolling process Methods 0.000 title claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 13
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 9
- 238000005097 cold rolling Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 229910052720 vanadium Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、高耐摩耗性圧延用ロール材に関し、特に本発
明は冷間および熱間圧延機用中間ロール，バックアップ
ロールおよび冷間圧延機用ワークロールなどに用いるの
に好適な優れた高耐摩耗性圧延用ロール材に関するもの
である。Description: TECHNICAL FIELD The present invention relates to a roll material for high wear resistance rolling, and in particular, the present invention relates to an intermediate roll for cold and hot rolling mills, a backup roll and a cold rolling mill. The present invention relates to an excellent high abrasion-resistant rolling material suitable for use as a work roll and the like.
（従来の技術） 冷間および熱間圧延機用中間ロール，バックアップロー
ルおよび冷間圧延機用ワークロールなど各種ロールにと
っては、耐摩耗性は重要な性能の１つであり、近年、圧
延能率の向上，難加工材の増加、あるいは製品品質の高
級化のために、圧延機の高速化，連続化，高圧下化，ロ
ールの小径化などが指向されており、このような圧延に
対しては、優れた耐摩耗性をもつロール材がますます要
望されるようになっている。(Prior Art) For various rolls such as intermediate rolls for cold and hot rolling mills, backup rolls, and work rolls for cold rolling mills, wear resistance is one of the important performances, and in recent years, the wear resistance has been improved. In order to improve, increase the number of difficult-to-work materials, and raise the quality of products, the rolling mill is being made faster, continuous, under high pressure, and has a smaller roll diameter. There is an increasing demand for roll materials having excellent wear resistance.
圧延ロールの耐摩耗性向上については、これまで特公昭
50−7529号，特開昭54−159323号，特開昭57−47849
号，特開昭57−108248号，特開昭59−118856号などによ
り多数の提案がなされている。To improve the wear resistance of rolling rolls,
50-7529, JP-A-54-159323, JP-A-57-47849
A number of proposals have been made, such as JP-A Nos. 57-108248 and 59-118856.
たとえば特開昭57−47849号には、C:0.7〜1.6％,Si:0.1
5〜1.6％,Mn:0.15〜1.6％,Cr:3.5〜12％，かつMo:0.4〜
3.0％,V:0.2〜2.0％の１種または２種を含み、さらにNi
1％以下を含むかあるいは含まず、残部Feよりなる冷間
圧延用ワークロールが提案されている。For example, in JP-A-57-47849, C: 0.7 to 1.6%, Si: 0.1
5 to 1.6%, Mn: 0.15 to 1.6%, Cr: 3.5 to 12%, and Mo: 0.4 to
3.0%, V: 0.2-2.0% of 1 type or 2 types, and further Ni
Work rolls for cold rolling have been proposed, which contain 1% or less or less and the balance is Fe.
ところで、上記諸提案によれば、ロールの耐摩耗性を主
として支配する要因はロール材の硬度と材料中に含まれ
る炭化物の体積率であることを見出し、さらに炭化物の
体積率と成分組成との関係を明らかにすることにより、
成分組成と硬度の組合せより耐摩耗性を予測し、この予
測によるＣとCrの相関的含有量についての知見をベース
としてCr以外の硬質炭化物形成元素であるMoまたはMoと
Ｖを含有させるという合金計画に基づくロール材が開示
されている。By the way, according to the above-mentioned proposals, it has been found that the factors mainly controlling the wear resistance of the roll are the hardness of the roll material and the volume fraction of the carbide contained in the material, and further the volume fraction of the carbide and the component composition of the carbide. By clarifying the relationship,
An alloy in which wear resistance is predicted from the combination of component composition and hardness, and Mo or Mo and V, which are hard carbide-forming elements other than Cr, are contained based on the knowledge about the correlative content of C and Cr based on this prediction. A roll material based on the plan is disclosed.
（発明が解決しようとする問題点） しかしながら、たとえば前記特開昭57−47849号記載の
発明にあっては、前述のとおり、耐摩耗性の向上につい
てＣとCrの相関含有量をベースとしてMoあるいはMoとＶ
の添加量が規定されているのＣとMoの相関含有量あるい
はＣとMoとＶとの相関含有量が耐摩耗性に及ぼす効果に
ついての検討は不十分であるため、Cr,MoおよびＶの含
有量はそれぞれの上限値からみて不必要に多いので、加
工性が悪いばかりでなく製造コストも高いという問題点
がある。(Problems to be Solved by the Invention) However, for example, in the invention described in JP-A-57-47849, as described above, Mo is based on the correlated content of C and Cr for improving the wear resistance. Or Mo and V
The effect of the correlated content of C and Mo or the correlated content of C, Mo and V on wear resistance is insufficient. Since the contents are unnecessarily large in view of the respective upper limit values, there is a problem that not only the workability is bad but also the manufacturing cost is high.
（問題点を解決するための手段） 本発明は、従来技術の有する前記諸問題点を除去・改善
することのできるロール材を提供することを目的とする
ものであり、特許請求の範囲記載のロール材を提供する
ことによって前記目的を達成することができる。(Means for Solving Problems) An object of the present invention is to provide a roll material capable of removing and improving the above-mentioned problems of the prior art. The above object can be achieved by providing a roll material.
次に本発明を詳細に説明する。Next, the present invention will be described in detail.
本発明者らは、Ｃ−Cr−Mo鋼の耐摩耗性におよぼす硬質
炭化物の影響に着目し、ＣおよびMo量の影響をしらべ
た。その結果、C:0.95超〜1.10％,Mo:0.95〜1.5％,Cr:
3.5〜6.0％,Si:0.1〜1.0％,Mn:0.2〜1.6％,Ni:0.1〜1.0
％を含有し、残部がFeおよび不可避的不純物よりなり、
しかも、Mo含有量とＣ含有量の重量比Mo/Cが1.0超〜1.5
の範囲内であることを特徴とする高耐摩耗性圧延用ロー
ル材を新規に知見した。The present inventors paid attention to the effect of hard carbides on the wear resistance of C-Cr-Mo steel, and investigated the effects of C and Mo contents. As a result, C: over 0.95 ~ 1.10%, Mo: 0.95 ~ 1.5%, Cr:
3.5-6.0%, Si: 0.1-1.0%, Mn: 0.2-1.6%, Ni: 0.1-1.0
%, The balance consists of Fe and unavoidable impurities,
Moreover, the weight ratio Mo / C of Mo content and C content exceeds 1.0 to 1.5.
We have newly found a high wear-resistant rolling material for rolling, which is characterized by being within the range.
次に本発明の冷間圧延用ワークロールの成分組成を限定
する理由を説明する。Next, the reason for limiting the component composition of the work roll for cold rolling of the present invention will be described.
C:本成分系では、Ｃは一部またはすべての基地中に固溶
し、焼入性を向上させると共に、また析出ＣとしてCr,M
oと炭化物を形成し、析出硬化による硬さの上昇および
耐摩耗性を向上させるのに寄与する元素である。しかし
0.95％超より少ないと、それらの硬化は小さく、また1.
10％を超えると残留オーステナイトの増加をまねき、硬
さの低下、ひいては耐摩耗性の低下をひき起こすので0.
95超〜1.10％の範囲内とする必要がある。C: In this component system, C forms a solid solution in some or all of the matrix to improve hardenability, and also as precipitated C, Cr and M.
It is an element that forms carbides with o and contributes to the increase in hardness due to precipitation hardening and the improvement in wear resistance. However
Below 0.95%, their hardening is small and also 1.
If it exceeds 10%, the retained austenite is increased, and the hardness is lowered, and thus the wear resistance is lowered.
It must be within the range of more than 95 to 1.10%.
Mo:Moは焼入性を向上させるとともにＣと結合して硬い
炭化物を形成し基地中に分散析出し、耐摩耗性を著しく
向上させるのに寄与する元素である。Moが0.95％未満で
はその効果は小さく、Mo含有量が1.5％を超えても、コ
ストの割に耐摩耗性の向上が望めないため、Mo含有量は
0.95〜1.5％の範囲内にする必要がある。Mo: Mo is an element that contributes to not only improving the hardenability but also forming a hard carbide by combining with C to disperse and precipitate in the matrix and remarkably improve the wear resistance. If the Mo content is less than 0.95%, the effect is small, and even if the Mo content exceeds 1.5%, improvement in wear resistance cannot be expected for the cost.
It must be within the range of 0.95 to 1.5%.
Cr:CrはCr炭化物を形成して基地中に分散し耐摩耗性を
向上させる。一部は固溶し、焼入性を増加させるが、3.
5％未満ではその効果は小さい。また本発明のＣ含有量
範囲においてCrが６％超ではCr炭化物の増加をもたらし
基地中の固溶するＣを減少させるため、焼入性を阻害す
る。そのためCrは3.5〜6.0％の範囲内にする必要があ
る。Cr: Cr forms Cr carbide and disperses in the matrix to improve wear resistance. Partly dissolves, increasing hardenability, but 3.
If it is less than 5%, the effect is small. Further, in the C content range of the present invention, when Cr exceeds 6%, Cr carbides are increased and the amount of solid solution C in the matrix is decreased, so that the hardenability is hindered. Therefore, Cr needs to be in the range of 3.5 to 6.0%.
Si:Siは耐事故性を向上し、例えばヒートクラックの防
止に役立つ元素であり、その効果は0.1〜1.0％の範囲で
著しい。0.1％未満ではヒートクラック防止に対して不
十分であり、下限を0.1％とし、一方1.0％を超えると、
母材の脆化を助長するため1.0％を上限とした。したが
ってSiは0.1〜1.0％の範囲内とする必要がある。Si: Si is an element that improves accident resistance and helps prevent heat cracks, for example, and the effect is remarkable in the range of 0.1 to 1.0%. If it is less than 0.1%, it is insufficient for preventing heat cracks, and if the lower limit is 0.1%, on the other hand, if it exceeds 1.0%,
The upper limit was 1.0% to promote embrittlement of the base material. Therefore, Si needs to be in the range of 0.1 to 1.0%.
Mn:Mnは焼入性を増加させる元素であり、0.2％未満では
その効果が見られず、増量とともに効果も大きくなるが
1.6％を超えると母材の脆化が著しく現れるので、Mnは
0.2〜1.6％の範囲内にする必要がある。なおMnは0.3〜
0.8％の範囲内のとき、より好ましい結果が得られる。Mn: Mn is an element that increases hardenability, and if it is less than 0.2%, its effect is not seen, and the effect increases with increasing amount.
When it exceeds 1.6%, the embrittlement of the base material appears remarkably, so Mn is
It must be within the range of 0.2 to 1.6%. Mn is 0.3-
More preferable results are obtained within the range of 0.8%.
Ni:Niは焼入性を増加させる元素であり、炭素との親和
力をもたないため、Niの添加は焼入性に有効な固溶Ｃの
減少を生じないことから、高炭素鋼では焼入性に対して
きわめて有効な元素である。とくにロールの表面焼入の
ような径方向に温度分布をもつ場合の焼入において焼入
深度の確保という意味において有効である。すなわち、
Crなどの炭化物元素が多い場合には、焼入のための加熱
に当たって、設定加熱温度に対して表面から内部に入る
に従って到達温度が低く、その場合には炭化物形成元素
がいかに多量添加されていても炭化物の基地中への固溶
化が進まず、高硬化深度を要求された場合焼入性は不足
する。しかしNiは焼入性の焼入到達温度依存性は比較的
少ないため、他の焼入性増加元素に比べ非常に有利とな
り、0.1％以上の添加を必要とする。一方１％を超える
添加は残留オーステナイトを増加させ硬さを低下させる
ので、Niは0.1〜1.0％の範囲内にする必要がある。Ni: Ni is an element that increases hardenability and has no affinity with carbon. Therefore, addition of Ni does not cause a decrease in solid solution C that is effective for hardenability. It is an extremely effective element for immobilization. In particular, it is effective in securing the quenching depth in quenching when there is a temperature distribution in the radial direction such as surface quenching of a roll. That is,
When there are many carbide elements such as Cr, the temperature reached is lower as the material enters the surface from the surface for heating for quenching, and in that case, how much carbide forming element is added. However, solidification of carbide into the matrix does not proceed, and hardenability is insufficient when a high hardening depth is required. However, Ni has a relatively small dependency of the hardenability on the quenching temperature, so it is very advantageous as compared with other hardenability-increasing elements, and it is necessary to add 0.1% or more. On the other hand, the addition of more than 1% increases the retained austenite and lowers the hardness, so Ni must be within the range of 0.1 to 1.0%.
次に本発明においてMo含有量とＣ含有量の重量比Mo/Cを
限定する理由を実験データに基づいて説明する。Next, the reason for limiting the weight ratio Mo / C between the Mo content and the C content in the present invention will be described based on experimental data.
成分組成のうちMoの一部が本発明範囲外である６種類の
鋼を用いて摩耗試験を実施し、Mo/C比と摩耗速度との関
係を求めた。上記関係を出願時の図に示す。この図より
Mo/C比が1.0超以上では十分に耐摩耗性が向上するの
で、Mo/C比の下限を1.0超とした。また、上限を1.5とし
たのは、Mo/C比をこれ以上大きくしてもほとんど耐摩耗
性の向上は望めないためである。したがって、Mo/C比は
1.0超〜1.5の範囲内とする必要がある。A wear test was carried out using six types of steel in which a part of Mo in the composition was out of the range of the present invention, and the relationship between the Mo / C ratio and the wear rate was obtained. The above relationship is shown in the diagram at the time of application. From this figure
If the Mo / C ratio exceeds 1.0, the wear resistance is sufficiently improved, so the lower limit of the Mo / C ratio was set to over 1.0. Further, the upper limit is set to 1.5 because even if the Mo / C ratio is increased more than this, improvement in wear resistance can hardly be expected. Therefore, the Mo / C ratio is
It must be in the range of more than 1.0 to 1.5.
Mo含有量は、上記Mo/C比の範囲とＣ含有量の範囲からMo
含有量の下限を0.95％とした。またMo含有量が1.5％を
超えてもコストの割りには耐摩耗性の向上が望めないた
め、Mo含有量の上限を1.5％とした。したがってMoは0.9
5〜1.5％の範囲内にする必要がある。Mo content is determined from the above Mo / C ratio range and C content range.
The lower limit of the content was 0.95%. Further, even if the Mo content exceeds 1.5%, improvement in wear resistance cannot be expected for the cost, so the upper limit of the Mo content was set to 1.5%. Therefore Mo is 0.9
It must be within the range of 5 to 1.5%.
したがって、本発明におけるＣおよびMoの成分範囲は第
２図の斜線の部分となる。Therefore, the C and Mo component ranges in the present invention are the shaded portions in FIG.
次に本発明を実施例について説明する。Next, the present invention will be described with reference to examples.
（実施例） 高周波真空溶解炉を用い、耐摩耗性を評価するためＣお
よびMo含有量を変化させ表に示す成分組成の５％Crロー
ル鋼用100kg鋼塊Ａ〜Ｄを溶製し、65mmφに鍛造した。
A,Bは比較鋼、C,Dは発明鋼である。それらについて、実
体ロールに施されるのと同じ前処理，調質処理を施し
た。(Example) Using a high-frequency vacuum melting furnace, 100 kg steel ingots A to D for 5% Cr roll steel having the component compositions shown in the table were melted to evaluate wear resistance, and 65 mmφ Forged into
A and B are comparative steels, and C and D are invention steels. The same pretreatment and tempering treatment as those applied to the actual rolls were applied to them.
西原式摩耗試験機を用い、ヘルツ応力100kgf/mm2，スリ
ップ率20％，潤滑油３％鉱油エマルジョンの条件で摩耗
試験を行った。試験片硬さはHv800とし、相手材にはS45
C（Hv200）を用いた。試験片は所定の回転数だけ回転さ
せた後取り外し摩耗減量を求め、相手材はそのつど交換
した。各鋼の摩耗速度（mg/105回転）とMo/C比との関係
を第１図に示す。 Using a Nishihara abrasion tester, an abrasion test was performed under the conditions of Hertz stress 100 kgf / mm 2 , slip ratio 20%, and lubricating oil 3% mineral oil emulsion. The test piece hardness is Hv800, and the other material is S45
C (Hv200) was used. The test piece was rotated by a predetermined number of revolutions, and then the removal wear reduction amount was obtained, and the mating material was replaced each time. Fig. 1 shows the relationship between the wear rate (mg / 10 5 rotations) and Mo / C ratio of each steel.
表に示すMoが1.21％,1.37％でMo/C比が1.10,1.33である
発明鋼C,Dは、Moがそれぞれ0.32,0.31％,Mo/C比がそれ
ぞれ0.33,0.24の比較鋼に比し、耐摩耗性に優れ、Mo量
の増加は耐摩耗性を著しく向上させることがわかる。な
お、表より、比較鋼A,BのＣ％がそれぞれ0.96,1.28％
で、他の成分組成は殆ど同じであるが、Ｃ％のやゝ多い
比較鋼Ｂは比較鋼Ａより耐摩耗性が劣っていることか
ら、耐摩耗性の向上にはＣ量の増加よりもMo/C比がより
大きく影響することがわかる。Inventive steels C and D whose Mo shown in the table are 1.21%, 1.37% and Mo / C ratios are 1.10, 1.33 are compared with comparative steels in which Mo is 0.32, 0.31% and Mo / C ratios are 0.33, 0.24, respectively. However, it is found that the wear resistance is excellent and an increase in the amount of Mo significantly improves the wear resistance. From the table, the C% of comparative steels A and B are 0.96 and 1.28%, respectively.
However, although the other component compositions are almost the same, the comparative steel B having a relatively large amount of C% is inferior in wear resistance to the comparative steel A. It can be seen that the Mo / C ratio has a greater effect.
（発明の効果） 本発明のロール材は、従来知られている前記提案のロー
ル材では達成されなかった著しく優れた耐摩耗性を有す
るロール材であり、本発明のロール材を用いるとロール
原単位を向上させるだけでなく、圧延機の性能をも向上
させることができ、本発明の効果は大きい。(Effects of the Invention) The roll material of the present invention is a roll material having remarkably excellent wear resistance that has not been achieved by the conventionally known roll material of the above proposal, and when the roll material of the present invention is used, Not only can the unit be improved, but also the performance of the rolling mill can be improved, and the effect of the present invention is great.
第１図はMo/C比と摩耗速度との関係を示す図、 第２図は本発明鋼のＣおよびMoの成分組成範囲を示す図
である。FIG. 1 is a diagram showing the relationship between the Mo / C ratio and wear rate, and FIG. 2 is a diagram showing the compositional ranges of C and Mo in the steel of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上田 修三 千葉県千葉市川崎町１番地 川崎製鉄株式 会社技術研究本部内 (56)参考文献 特開 昭55−50452（ＪＰ，Ａ) 特開 昭57−47849（ＪＰ，Ａ) 特開 昭59−118856（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuzo Ueda, 1 Kawasaki-cho, Chiba-shi, Chiba Inside the Technical Research Division, Kawasaki Steel Co., Ltd. (56) References JP-A-55-50452 (JP, A) JP-A-57 -47849 (JP, A) JP 59-118856 (JP, A)
Claims (1)
〜1.6％,Ni:0.1〜1.0％,Cr:3.5〜6.0％,Mo:0.95〜1.5％
を含有し、しかもMo含有量とＣ含有量の重量比Mo/Cが1.
0超〜1.5の範囲内であり残部がFeおよび不可避的不純物
よりなる高耐摩耗性圧延用ロール材。1. C: over 0.95 to 1.10%, Si: 0.1 to 1.0%, Mn: 0.2
~ 1.6%, Ni: 0.1 ~ 1.0%, Cr: 3.5 ~ 6.0%, Mo: 0.95 ~ 1.5%
In addition, the weight ratio Mo / C of Mo content and C content is 1.
Roll material for rolling with high wear resistance, which is in the range of more than 0 to 1.5 with the balance Fe and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61185288A JPH0774411B2 (en) | 1986-08-08 | 1986-08-08 | High wear resistance rolling material for rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61185288A JPH0774411B2 (en) | 1986-08-08 | 1986-08-08 | High wear resistance rolling material for rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6342359A JPS6342359A (en) | 1988-02-23 |
| JPH0774411B2 true JPH0774411B2 (en) | 1995-08-09 |
Family
ID=16168225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61185288A Expired - Fee Related JPH0774411B2 (en) | 1986-08-08 | 1986-08-08 | High wear resistance rolling material for rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0774411B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191691A (en) * | 2016-08-29 | 2016-12-07 | 巢湖市南特精密制造有限公司 | Compressor crank shaft antifriction alloy |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS592738B2 (en) * | 1978-08-30 | 1984-01-20 | 株式会社神戸製鋼所 | Baked roll material with excellent spalling resistance |
| JPS5747849A (en) * | 1980-09-04 | 1982-03-18 | Kobe Steel Ltd | Work roll for cold rolling |
| JPS59118856A (en) * | 1982-12-27 | 1984-07-09 | Japan Steel Works Ltd:The | Working roll having wear resistance for cold rolling |
-
1986
- 1986-08-08 JP JP61185288A patent/JPH0774411B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6342359A (en) | 1988-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kudo et al. | Development of monobloc type high-carbon high-alloyed rolls for hot rolling mills | |
| EP0395477B1 (en) | Highly wear-resistant roll steel for cold rolling mills | |
| JP3360687B2 (en) | High-strength, high-toughness wear-resistant steel | |
| JPH0774411B2 (en) | High wear resistance rolling material for rolling | |
| JPH051350A (en) | Roll external layer material for rolling | |
| JPH0692625B2 (en) | Roll for hot rolling | |
| JP3092030B2 (en) | Manufacturing method of super tough composite hardness difference roll | |
| JP3412590B2 (en) | Roll for rolling | |
| JP2581819B2 (en) | Hot roll material and method for producing roll | |
| JPH05171373A (en) | Powder high speed tool steel | |
| EP0713924B1 (en) | Corrosion-resistant spring steel | |
| RU2250929C2 (en) | Tool steel for forming rolls | |
| JPH08209299A (en) | High seizure resistance roll material for hot rolling and method for producing the same | |
| EP4126417A1 (en) | Multi-layered roller with high corrosion resistance | |
| JP2996148B2 (en) | Work roll for cold rolling and its manufacturing method | |
| KR100302141B1 (en) | Rollers for use in high press roller crusher | |
| JP3221468B2 (en) | Roll material for hot rolling | |
| JP3530379B2 (en) | Work roll for cold rolling | |
| JP3482349B2 (en) | Hot working tool materials | |
| JPH05171374A (en) | Powder high speed tool steel | |
| SU998563A1 (en) | Cast iron | |
| JPH0598392A (en) | Abrasion resistant / heat resistant crack roll material for hot rolling | |
| JPH05239593A (en) | Working roll for cold rolling | |
| JPS6254858B2 (en) | ||
| JPH07145449A (en) | High wear resistance cold rolling working roll |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |