JP3448784B2 - Rolls for rolling process with a heat-resistant and seizure-resistant film formed by an electric discharge coating method in which an electrode as a film forming material and a substrate are brought into contact with each other on the surface and welded by arc discharge - Google Patents

Rolls for rolling process with a heat-resistant and seizure-resistant film formed by an electric discharge coating method in which an electrode as a film forming material and a substrate are brought into contact with each other on the surface and welded by arc discharge

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Publication number
JP3448784B2
JP3448784B2 JP15645294A JP15645294A JP3448784B2 JP 3448784 B2 JP3448784 B2 JP 3448784B2 JP 15645294 A JP15645294 A JP 15645294A JP 15645294 A JP15645294 A JP 15645294A JP 3448784 B2 JP3448784 B2 JP 3448784B2
Authority
JP
Japan
Prior art keywords
layer
rolls
rolling process
base material
resistant
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
Application number
JP15645294A
Other languages
Japanese (ja)
Other versions
JPH081212A (en
Inventor
久郎 田代
輝之 内山
拓也 津田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Hardfacing Corp
Original Assignee
Nippon Steel Hardfacing Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Hardfacing Corp filed Critical Nippon Steel Hardfacing Corp
Priority to JP15645294A priority Critical patent/JP3448784B2/en
Publication of JPH081212A publication Critical patent/JPH081212A/en
Application granted granted Critical
Publication of JP3448784B2 publication Critical patent/JP3448784B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、熱間または冷間圧延工
程用の耐熱性、耐焼付性に優れたロール類に関し、特に
鉄鋼圧延工程用のほか、非鉄金属圧延工程用のロール類
として使用されるものであって、テーブルローラー、ピ
ンチロールおよびデフレクタロール等として好適なロー
ル類に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to rolls excellent in heat resistance and seizure resistance for hot or cold rolling process, and particularly as rolls for non-ferrous metal rolling process in addition to steel rolling process. The present invention relates to rolls used as table rollers, pinch rolls, deflector rolls, and the like.

【0002】[0002]

【従来の技術】従来、熱間または冷間圧延工程用ロール
類は、表面に皮膜層のないロールあるいはこれに肉盛溶
接を行なったロール等が使用されてきた。
2. Description of the Related Art Heretofore, as a roll for a hot or cold rolling process, a roll having no coating layer on its surface or a roll having a build-up welding applied thereto has been used.

【0003】[0003]

【発明が解決しようとする課題】ところが、通常の圧延
工程では、ロールと圧延される走行材料との間にスリッ
プが生じ、材料がロール表面に焼付いたり、スケールの
付着、ロール表面粗度の低下などの欠陥を生じ、使用性
能が十分ではなかった。特に被加工材に対する熱間圧延
工程における焼付性、冷間圧延工程における摩擦性の保
持等の点で問題となることが多かった。
However, in a normal rolling process, slippage occurs between the roll and the running material to be rolled, and the material is seized on the roll surface, scale adheres, and the roll surface roughness is lowered. However, the use performance was not sufficient. In particular, there have often been problems in terms of seizability in the hot rolling process for the material to be processed, retention of frictional properties in the cold rolling process, and the like.

【0004】すなわち、圧延工程のプロセスロールとし
て重要な点は、熱間圧延工程では走行鋼板などにロール
素材やスケールなどが焼付く焼付現象を防止すること、
耐摩耗性を如何に確保するかであった。また冷間圧延工
程では耐摩耗性のほか、走行材料、酸化皮膜などの焼付
防止のほか摩擦力の保持、ロール表面粗度の維持などが
ある。本発明は、前記従来の問題点を解決し、耐熱性、
耐焼付性に優れた熱間または冷間圧延工程用のロール類
を提供することを目的としている。
That is, the important point of the process roll in the rolling process is to prevent the seizure phenomenon in which the roll material or scale is seized on the running steel plate in the hot rolling process.
It was how to secure abrasion resistance. In the cold rolling process, in addition to wear resistance, it also prevents seizure of running materials and oxide films, maintains frictional force, and maintains roll surface roughness. The present invention solves the above conventional problems, heat resistance,
It is an object of the present invention to provide rolls for a hot or cold rolling process having excellent seizure resistance.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するた
め、本発明者等は種々研究を重ねた結果、圧延用ロール
表面への耐熱性、耐摩耗性の皮膜を形成する手段とし
て、皮膜形成材としての電極と基材とを接触させ、アー
ク放電により溶着させる放電被覆処理法(Electr
o−Spark−Deposition法:以下ESD
法という)を適用することにより皮膜接着強度を高める
ことができることを知見し、本発明を完成するに至っ
た。
In order to achieve the above object, the inventors of the present invention have conducted various studies, and as a result, as a means for forming a heat-resistant and wear-resistant film on the surface of a rolling roll, film formation A discharge coating method in which an electrode as a material and a base material are brought into contact with each other and welded by arc discharge (Electror)
o-Spark-Deposition method: ESD
It was found that the film adhesion strength can be increased by applying the method), and the present invention has been completed.

【0006】すなわち、前記知見に基づいてなされた本
発明は、基材表面に、皮膜形成材としての電極と基材と
を接触させ、アーク放電により溶着させる放電被覆処理
法(Electro−Spark−Depositio
n法:以下ESD法という)により形成した耐焼付性金
属層、セラミック層あるいはサーメット層を有すること
を特徴とする圧延工程用ロール類を要旨とするものであ
る。また、基材表面に耐焼付性金属層をESD法により
形成し、その上にESD法により形成したステライト等
の超合金層またはセラミックスや、前記合金とセラミッ
クスよりなるサーメット層を形成した圧延工程用ロール
類も本発明の要旨である。
That is, the present invention made on the basis of the above-mentioned knowledge is such that an electrode as a film forming material and a base material are provided on the surface of the base material.
Discharge coating process to contact and weld by arc discharge
Method (Electro-Spark-Depositio
n method: hereinafter referred to as an ESD method) is a roll for a rolling process, which is characterized by having a seizure resistant metal layer, a ceramic layer or a cermet layer. Also, a seizure resistant metal layer is formed on the surface of the base material by the ESD method.
Formed, thereon superalloy layer or and ceramics stellite or the like formed by the ESD method, a roll-for rolling process of forming the cermet layer made of the alloy and ceramics are also subject matter of the present invention.

【0007】さらに基材表面に耐焼付性金属層をESD
法により形成し、その表面に溶射した耐焼付性金属層あ
るいはサーメット層を形成した圧延工程用ロール類も本
発明の要旨に含まれる。そして溶着層を形成するロール
本体に、予め下地硬化層としての焼入硬化層または肉盛
溶接層あるいはその肉盛溶接層を焼入硬化した層または
自溶合金溶射層を設けたものも本発明の要旨に含まれ
る。さらに表面層を形成したこれらのロールに対して
は、金属アルコキシドアルコール液またはその水添加液
またはクロム酸を主成分とする水溶液で封孔処理し、焼
成処理を行なってもよい。
Further, a seizure resistant metal layer is ESD- coated on the surface of the base material.
Rolls for a rolling process, which are formed by a method and have a spray-resistant metal layer or a cermet layer sprayed on the surface thereof, are also included in the gist of the present invention. Further, the present invention is also one in which the roll body forming the welding layer is provided with a quench-hardened layer as a base hardening layer, a build-up welding layer, or a layer obtained by quench-hardening the build-up welding layer or a self-fluxing alloy sprayed layer in advance. Included in the summary of. Further, these rolls having a surface layer formed thereon may be subjected to a pore-sealing treatment with a metal alkoxide alcohol solution or a water addition solution thereof or an aqueous solution containing chromic acid as a main component, and then a firing treatment.

【0008】[0008]

【作用】本発明の構成と作用を説明する。本発明は、小
入熱で金属またはサーメットを基材表面に溶着させるも
ので、形成される皮膜の密着性が高いという特徴があ
る。また、基材表面層に溶着される金属あるいはサーメ
ットの材質と処理手段を適切に選定することにより、圧
延工程用ロール類の長寿命化を達成し得るものである。
The structure and operation of the present invention will be described. The present invention is for adhering a metal or cermet to the surface of a substrate with a small heat input, and is characterized in that the formed film has high adhesion. Further, by appropriately selecting the material of the metal or cermet to be welded to the surface layer of the base material and the treatment means, it is possible to achieve a long service life of the rolling process rolls.

【0009】本発明では、ロール基材表面への耐熱性、
耐焼付性および耐摩耗性表面皮膜の形成手段として、溶
着材となる電極をロール基材表面に接触させるESD法
を適用する。本発明で用いるESD法は小入熱で、金属
又はサーメットをロール基材表面へ溶着するもので、こ
の方法によればロール基材の変形がほとんどなく、溶着
境界部に薄い溶融拡散層が形成されて皮膜の密着性が高
くなり、さらにその表面層金属又はサーメットの封孔処
理用材料を適切に選定することによって、長寿命化を達
成することができる。
In the present invention, the heat resistance to the surface of the roll base material,
As a method for forming a seizure resistant and abrasion resistant surface film, an ESD method is used in which an electrode serving as a welding material is brought into contact with the surface of a roll base material. The ESD method used in the present invention is a method of welding a metal or cermet to the surface of a roll base material with a small heat input. According to this method, there is almost no deformation of the roll base material, and a thin melt diffusion layer is formed at the weld boundary portion. As a result, the adhesion of the film is increased, and the life of the film can be extended by appropriately selecting the surface layer metal or the material for sealing the cermet.

【0010】本発明においてESD法によりロール表面
に溶着させる金属としては、そのまま使用される場合、
耐熱性があり、かつ加熱された圧延材料の焼付を防止す
るため、強固な酸化皮膜を形成することの出来る材料が
望ましい。その具体例としてはNi−Cr合金、Ni−
Fe−Cr合金、MCrAlY合金あるいは溶射用自溶
合金等が挙げられる。
In the present invention, when the metal to be deposited on the roll surface by the ESD method is used as it is,
A material having heat resistance and capable of forming a strong oxide film is desirable in order to prevent seizure of the heated rolled material. Specific examples thereof include Ni-Cr alloy and Ni-
Fe—Cr alloys, MCrAlY alloys, self-fluxing alloys for thermal spraying and the like can be mentioned.

【0011】下地層として形成される金属層は、上層皮
膜の密着性を向上する点に主眼があるため、密着性を高
めることの出来るNi−Al合金、Ni−Cr合金、M
CrAlY合金等を主に用いるのがよい。特にMCrA
lY系超合金は表面酸化皮膜の特性から、表面皮膜の耐
焼付性を向上するため広く使用することができる。
The metal layer formed as the underlayer is mainly intended to improve the adhesiveness of the upper layer film, and therefore Ni-Al alloy, Ni-Cr alloy, M which can enhance the adhesiveness.
It is preferable to mainly use CrAlY alloy or the like. Especially MCrA
Due to the characteristics of the surface oxide film, the 1Y-based superalloy can be widely used because it improves the seizure resistance of the surface film.

【0012】サーメット層としては、Co、Ni−Cr
合金、MCrAlY合金中にAl23、ZrO2等の酸
化物、WC、Cr32等の炭化物、Si34等の窒化
物、WB等の硼化物等を分散させたものが好適である。
これらのセラミックスは、高温耐摩耗性を高めるばかり
でなく、加熱鋼板中の鉄分やスケールとの反応や焼付を
防止し、鋼板の表面疵発生を防止し得るものである。
As the cermet layer, Co, Ni--Cr
An alloy or MCrAlY alloy in which an oxide such as Al 2 O 3 , ZrO 2 or the like, a carbide such as WC or Cr 3 C 2 , a nitride such as Si 3 N 4 or a boride such as WB is dispersed is preferable. Is.
These ceramics not only enhance the high temperature wear resistance, but also prevent the reaction with the iron content and scale in the heated steel sheet and the seizure, and prevent the surface flaw of the steel sheet from occurring.

【0013】本発明において、ESD法により金属層を
溶着後、溶射法で耐熱金属層またはサーメット層を溶射
する場合も、耐熱金属あるいはサーメット材料はESD
法とほぼ同じ基準で選定することが出来る。また、セラ
ミックスを含む自溶合金溶射層を下地層とすると良好な
特性を示すことが確認された。
In the present invention, when the heat resistant metal layer or the cermet layer is sprayed by the thermal spraying method after the metal layer is deposited by the ESD method, the heat resistant metal or the cermet material is ESD.
It can be selected based on almost the same criteria as the law. It was also confirmed that the sprayed layer of self-fluxing alloy containing ceramics exhibited good characteristics when used as the underlayer.

【0014】ロール基材部分の焼入硬化は、フレーム硬
化法、高周波誘導加熱法などで行なうことが出来る。ま
た、硬化肉盛溶接を行ない、さらにフレーム硬化法など
で表層硬度を上げることにより、高温における強度、熱
疲労特性などを改善したものも本発明に包含される。
Quench hardening of the roll base material can be carried out by a flame hardening method, a high frequency induction heating method or the like. Further, the present invention also includes the one in which the strength at high temperature, the thermal fatigue property and the like are improved by carrying out the hardfacing welding and further increasing the surface hardness by the flame hardening method or the like.

【0015】本発明に適用される封孔処理は、ESD法
により形成した層あるいは溶射層の耐熱性を向上するこ
とが出来、特に前記層上に酸化物セラミックス皮膜を形
成することにより、耐焼付性を改善し同時に耐摩耗性を
向上することが出来る効果を奏するものである。なお、
封孔処理のほか、表面処理加工後の表面を加熱して酸化
処理を行なうことも耐焼付性向上に有効であり、これら
によってえられたロール類も本発明に含まれる。
The sealing treatment applied to the present invention is the ESD method.
It is possible to improve the heat resistance of the layer or the sprayed layer formed by , and especially by forming an oxide ceramics film on the layer, it is possible to improve the seizure resistance and at the same time the effect of improving the wear resistance. It plays. In addition,
In addition to the sealing treatment, heating the surface after the surface treatment for oxidation treatment is also effective for improving the seizure resistance, and rolls obtained by these treatments are also included in the present invention.

【0016】本発明に用いる封孔処理は、冷間加工工程
用ロールに適用した場合でも、スリップによる焼付、耐
摩耗性の向上に有効である。特にESD法により溶着さ
せた皮膜は耐衝撃性があり、高速走行ロールの場合でも
耐剥離性に優れていることが確認された。そして、サー
メット皮膜を溶着させることでロール表面の摩擦力を確
保することが容易であり、しかも、耐摩耗性の向上によ
り摩擦係数を長期間にわたって一定に保持する効果があ
る。
The sealing treatment used in the present invention is effective in improving seizure due to slip and improvement in wear resistance even when applied to a cold working roll. In particular, it was confirmed that the film deposited by the ESD method has impact resistance and is excellent in peeling resistance even in the case of high speed running rolls. Then, by welding the cermet coating, it is easy to secure the frictional force on the roll surface, and further, the abrasion resistance is improved, so that the friction coefficient is kept constant for a long period of time.

【0017】以上のように本発明の表面処理ロール類
は、熱間・冷間両工程のいずれにおいても、単なる溶射
ロールより耐久性が大きいことを確認した。本発明に適
用されるESD法の特徴は、回転電極を使用したアーク
放電によるため、金属層の完全な溶着が可能であり、高
温短時間放電のためセラミックス粒のマトリックス内微
細分散が達成され、かつ、炭化物、硼化物を含むサーメ
ットでは、それらの歩留まりを向上できる効果がある。
放電溶着法の優れた点は、皮膜層の融着であるため密着
力が高いことであり、溶射との併用により衝撃荷重を受
けるロール類に好ましい表面加工手段といえる。
As described above, it has been confirmed that the surface-treated rolls of the present invention are more durable than a mere thermal spray roll in both hot and cold steps. The feature of the ESD method applied to the present invention is that arc discharge using a rotating electrode enables complete welding of a metal layer, and fine dispersion in a matrix of ceramic particles is achieved due to high-temperature short-time discharge, In addition, cermets containing carbides and borides have the effect of improving their yield.
The advantage of the electric discharge welding method is that the adhesion is high because it is the fusion of the coating layer, and it can be said that it is a preferable surface processing means for rolls that receive an impact load when used in combination with thermal spraying.

【0018】本発明における下地焼入硬化、肉盛溶接
は、下地の硬化あるいは肉盛層によって荷重の耐力層が
形成され、皮膜表面に衝撃荷重が働いてもこの耐力層が
表面皮膜の変形を防ぎ、剥離を起こし難くする効果があ
る。
In the quench-hardening and overlay welding of the present invention, the load-bearing layer is formed by the undercoat hardening or the overlay layer, and even if an impact load is applied to the coating surface, this bearing layer deforms the surface coating. It has the effect of preventing it and making peeling less likely.

【0019】[0019]

【実施例】本発明を実施例により具体的に説明するが、
これによって本発明が限定されることはない。表1にお
いて、No.1〜25は本発明の実施例であって、耐熱
性合金などをESD法により表面被覆層を形成したロー
ルである。No.1〜7は請求項1〜5の発明に含まれ
るものであり、No.8〜13は請求項2および5、N
o.14〜19は請求項3および5、No.20〜25
は請求項4および5の発明に係る実施例である。
EXAMPLES The present invention will be specifically described with reference to Examples.
This does not limit the invention. In Table 1, No. 1 to 25 are examples of the present invention, and are rolls having a surface coating layer formed of a heat resistant alloy or the like by the ESD method. No. 1 to 7 are included in the invention of claims 1 to 5, and No. 8 to 13 are claims 2 and 5, N
o. 14 to 19 are claims 3 and 5, No. 20-25
Are embodiments according to the inventions of claims 4 and 5.

【0020】ロールの表面皮膜形成に使用されているC
oCrAlY、CoNiCrAlY合金は、25%C
r、12%Al、1%Y残部Co、Niおよび小量のC
よりなるものである。
C used for forming the surface film of the roll
25% C for oCrAlY and CoNiCrAlY alloys
r, 12% Al, 1% Y balance Co, Ni and a small amount of C
It consists of

【0021】各実施例において、ESD法では4mmφ
電極棒を使用し、これをロール表面に回転接触させなが
ら膜厚20μmを目標として放電溶着させる。溶射には
高速ガス溶射法を採用し、膜厚50〜100μmとなる
ように操作した。ただし、下地の自溶合金溶射について
はJIS H8303−1976に規定されるMSFW
C2系の材料を、膜厚100μm程度となるよう高速ガ
ス溶射し、フュージング処理は行なっていない。なお、
サンプルは表面放電溶着または溶射後、すべて表面粗さ
Raを8μmとなるように仕上げて試験に供した。中間
層についても必要により仕上げ加工後、後の処理を行な
った。
In each embodiment, the ESD method is 4 mmφ.
An electrode rod is used, and the electrode surface is rotated and brought into contact with the surface of the roll while electrical discharge welding is performed with a target thickness of 20 μm. A high-speed gas spraying method was adopted for the spraying, and operation was performed so that the film thickness was 50 to 100 μm. However, regarding the self-fluxing alloy thermal spraying of the base, MSFW defined in JIS H8303-1976
High-speed gas thermal spraying was performed on a C2-based material to a film thickness of about 100 μm, and no fusing treatment was performed. In addition,
After surface discharge welding or thermal spraying, the samples were all finished to a surface roughness Ra of 8 μm and then subjected to the test. If necessary, the intermediate layer was also subjected to the subsequent processing after finishing.

【0022】[0022]

【表1】 [Table 1]

【0023】表1に示されるNo.26〜29は比較例
であり、試験値の評価は、すべて従来用いられてきたS
US420肉盛材No.29の値を標準値とし、これに
対する比によって評価した。耐焼付性は、図1の試験で
焼付材料2を、表面皮膜加工した回転ロール1に押しつ
けて焼付を起こさせ、焼付の起こったロール表面の面積
を測定したものである。耐焼付性は、本発明例が従来の
溶射材ならびに肉盛材よりも著しく軽減されており、熱
処理をした鋳造材に比べても優れている。特にサーメッ
ト材使用のものでは大きく改善されている。
No. 1 shown in Table 1 Nos. 26 to 29 are comparative examples, and the evaluation of the test values is S which has been conventionally used.
US420 Overlay material No. The value of 29 was taken as the standard value and evaluated by the ratio to this. The seizure resistance is obtained by pressing the seizure material 2 against the surface-coated rotary roll 1 in the test of FIG. 1 to cause seizure, and measuring the area of the surface of the seized roll. The seizure resistance is remarkably reduced in the examples of the present invention as compared with the conventional thermal spray material and the overlay material, and is superior even to the heat-treated cast material. In particular, those using cermet material have been greatly improved.

【0024】密着性は、ピンテスト法による強さの比を
採用した。すなわち、本発明例は標準の溶射材に比べ、
密着強度が高く、耐衝撃性に優れていることがわかる。
自溶合金溶射材より優れているが、肉盛り材よりやや悪
い。図2は、ピンテスト法の概略であり、ピン3を基材
4にはめ込み、試験皮膜6を形成した後、引張用治具5
にはめてピン3を引き抜く。摩擦力は、試験用100m
mφロールに表面加工し、SS材を接触させながら10
4回回転摩耗させ、その後の最大静摩擦力を測定したも
ので、しかも耐摩耗性が大きいので、本発明ロールは自
溶合金材より摩擦力が大きく、また肉盛り材よりも大き
くて摩耗しない。そして、使用中の摩擦力の低下がな
く、冷間精整工程等における各種ロールに適しているこ
とがわかる。すなわち、スリップが起こり難く、デフレ
クターピンチロール等に好適といえる。図3は、回転摩
耗法および最大静摩擦力(ロール1を緩やかに回転さ
せ、スリップの始まったときの引張力)の測定法を、模
式図で示したものである。
As the adhesion, a ratio of strength by the pin test method was adopted. That is, the present invention example, compared to the standard thermal spray material,
It can be seen that the adhesion strength is high and the impact resistance is excellent.
Superior to self-fluxing alloy spray material, but slightly worse than overlay material. FIG. 2 is an outline of the pin test method. After the pin 3 is fitted on the base material 4 to form the test film 6, the tensile jig 5 is used.
Fit and pull out pin 3. Friction force is 100m for test
The surface of mφ roll is processed, and while contacting SS material, 10
The roll of the present invention has a larger frictional force than the self-fluxing alloy material and is larger than the self-fluxing alloy material and does not wear because the maximum static frictional force is measured after being rotated and worn four times. Further, it can be seen that there is no reduction in frictional force during use and it is suitable for various rolls in the cold refining process and the like. In other words, slippage is unlikely to occur, which is suitable for deflector pinch rolls and the like. FIG. 3 is a schematic diagram showing the rotational wear method and the method of measuring the maximum static friction force (tensile force at the start of slip when the roll 1 is gently rotated).

【0025】[0025]

【発明の効果】本発明は、以上説明したように構成され
ており、本発明ロール類は優れた耐焼付性を備えている
ので、熱間処理工程のテーブルローラとして、また、ロ
ールの表面皮膜は、密着性、耐衝撃性に優れているとこ
ろから熱間、冷間工程の各種ロールとして好ましく、摩
擦力が変化しにくいことから、冷間の精製ロール等にも
適当なものであって工業的価値が大きく、産業上極めて
有用である。
The present invention is constructed as described above, and since the rolls of the present invention have excellent seizure resistance, they can be used as a table roller in a hot treatment process and also as a surface coating on a roll. Is suitable as various rolls for hot and cold processes because of its excellent adhesiveness and impact resistance, and is suitable for cold refining rolls because the frictional force is unlikely to change. It has a great intellectual value and is extremely useful in industry.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明ロールの耐焼付性試験法を示す模式図
である。
FIG. 1 is a schematic diagram showing a seizure resistance test method for a roll of the present invention.

【図2】 ピンテスト密着力試験法を示す模式図であ
る。
FIG. 2 is a schematic diagram showing a pin test adhesion test method.

【図3】 104回回転摩耗と、その後の静摩擦力を測
定する方法を示す模式図である。
FIG. 3 is a schematic diagram showing a method of measuring 10 4 times rotational wear and subsequent static friction force.

【符号の説明】[Explanation of symbols]

1 表面皮膜加工した回転ロール 2 焼付材料 3 ピン(SUS304) 4 SUS304基材 5 引張用治具 6 SS材帯板 7 荷重(5kg) 8 スプリング 9 ロードセル 1 Surface-rolled rotating roll 2 Baking material 3 pin (SUS304) 4 SUS304 base material 5 Jig for pulling 6 SS material strip 7 load (5 kg) 8 springs 9 load cell

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI C23C 22/74 C23C 22/74 (56)参考文献 特開 平6−158263(JP,A) 特開 平6−79312(JP,A) 特開 平6−170536(JP,A) 特開 平4−297565(JP,A) 特開 平6−346217(JP,A) 特開2000−345313(JP,A) (58)調査した分野(Int.Cl.7,DB名) B21B 27/00 B21B 39/00 C23C 4/00 C23C 4/10 C23C 22/74 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI C23C 22/74 C23C 22/74 (56) References JP-A-6-158263 (JP, A) JP-A-6-79312 (JP , A) JP-A-6-170536 (JP, A) JP-A-4-297565 (JP, A) JP-A-6-346217 (JP, A) JP-A-2000-345313 (JP, A) (58) Survey Areas (Int.Cl. 7 , DB name) B21B 27/00 B21B 39/00 C23C 4/00 C23C 4/10 C23C 22/74

Claims (5)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 基材表面に、皮膜形成材としての電極と
基材とを接触させ、アーク放電により溶着させる放電被
覆処理法により形成した耐焼付性金属層、セラミック層
あるいはサーメット層を有することを特徴とする圧延工
程用ロール類。
1. An electrode as a film-forming material is formed on the surface of a base material.
A discharge cover that contacts the base material and welds it by arc discharge.
Rolls for a rolling process having a seizure resistant metal layer, a ceramic layer or a cermet layer formed by a covering treatment method .
【請求項2】 さらにその表面に皮膜形成材としての電
極と基材とを接触させ、アーク放電により溶着させる放
電被覆処理法により形成したステライト等の超合金層ま
たは該合金とセラミックスよりなるサーメット層を形成
した請求項1記載の圧延工程用ロール類。
2. Further , an electric charge as a film forming material is formed on the surface thereof.
Release by bringing the electrode into contact with the base material and welding by arc discharge
The rolling process rolls according to claim 1, wherein a superalloy layer such as stellite formed by an electric coating treatment method or a cermet layer made of the alloy and ceramics is formed.
【請求項3】 さらにその表面上に溶射した耐焼付性金
属層、セラミックス層あるいはサーメット層を形成した
請求項1または2記載の圧延工程用ロール類。
3. The rolling process rolls according to claim 1, further comprising a spray-resistant metal layer, a ceramics layer or a cermet layer formed on the surface thereof by thermal spraying.
【請求項4】 ロール基材表面に、下地硬化層としての
焼入硬化層または肉盛溶接層あるいはその焼入硬化ある
いは自溶合金溶射層を設けた請求項1、2または3のい
ずれかに記載の圧延工程用ロール類。
4. A roll base material having a quench-hardened layer or a build-up welded layer as a base hardened layer, or a quench-hardened or self-fluxing alloy sprayed layer provided on a surface of a roll base material. Rolls for the rolling process described.
【請求項5】 表面の皮膜層に、金属アルコキシドアル
コール液またはその水添加液またはクロム酸を主成分と
する水溶液で封孔処理し、焼成処理を行なった請求項1
〜4のいずれかに記載の圧延工程用ロール類。
5. The surface coating layer is sealed with a metal alkoxide alcohol solution, a water addition solution thereof, or an aqueous solution containing chromic acid as a main component, followed by firing treatment.
Rolls for rolling process according to any one of to 4.
JP15645294A 1994-06-16 1994-06-16 Rolls for rolling process with a heat-resistant and seizure-resistant film formed by an electric discharge coating method in which an electrode as a film forming material and a substrate are brought into contact with each other on the surface and welded by arc discharge Expired - Fee Related JP3448784B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15645294A JP3448784B2 (en) 1994-06-16 1994-06-16 Rolls for rolling process with a heat-resistant and seizure-resistant film formed by an electric discharge coating method in which an electrode as a film forming material and a substrate are brought into contact with each other on the surface and welded by arc discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15645294A JP3448784B2 (en) 1994-06-16 1994-06-16 Rolls for rolling process with a heat-resistant and seizure-resistant film formed by an electric discharge coating method in which an electrode as a film forming material and a substrate are brought into contact with each other on the surface and welded by arc discharge

Publications (2)

Publication Number Publication Date
JPH081212A JPH081212A (en) 1996-01-09
JP3448784B2 true JP3448784B2 (en) 2003-09-22

Family

ID=15628064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15645294A Expired - Fee Related JP3448784B2 (en) 1994-06-16 1994-06-16 Rolls for rolling process with a heat-resistant and seizure-resistant film formed by an electric discharge coating method in which an electrode as a film forming material and a substrate are brought into contact with each other on the surface and welded by arc discharge

Country Status (1)

Country Link
JP (1) JP3448784B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006036393A (en) * 2004-07-23 2006-02-09 Bushu Denki:Kk Object feed roller, its manufacturing method and its manufacturing device
JP2006181617A (en) * 2004-12-28 2006-07-13 Jfe Steel Kk Method for treating roll surface, and roll
JP4621112B2 (en) * 2005-10-20 2011-01-26 新日本製鐵株式会社 Roll for electric discharge coating, consumable electrode for surface treatment of roll for rolling, electric discharge coating apparatus, and surface treatment method for roll for rolling
JP2013067836A (en) * 2011-09-22 2013-04-18 Nisshin Steel Co Ltd Corrosion resistant roll and method for manufacturing the same

Also Published As

Publication number Publication date
JPH081212A (en) 1996-01-09

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