JPS6353249A - Roller for heat-treatment furnace - Google Patents
Roller for heat-treatment furnaceInfo
- Publication number
- JPS6353249A JPS6353249A JP19559586A JP19559586A JPS6353249A JP S6353249 A JPS6353249 A JP S6353249A JP 19559586 A JP19559586 A JP 19559586A JP 19559586 A JP19559586 A JP 19559586A JP S6353249 A JPS6353249 A JP S6353249A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- roller
- zro
- metal group
- treatment furnace
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 239000000919 ceramic Substances 0.000 claims abstract description 22
- 239000011195 cermet Substances 0.000 claims abstract description 16
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000000576 coating method Methods 0.000 abstract description 16
- 239000011248 coating agent Substances 0.000 abstract description 15
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000758 substrate Substances 0.000 abstract description 6
- 229910052727 yttrium Inorganic materials 0.000 abstract description 6
- 238000007751 thermal spraying Methods 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 239000011651 chromium Substances 0.000 description 6
- 239000011247 coating layer Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229910018138 Al-Y Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0012—Rolls; Roll arrangements
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、連続熱処理炉内に配設され、被熱処理材を搬
送するためのローラに関するものであり、特に本発明は
高温強度とビルドアップ防止に優れた熱処理炉用ローラ
に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to rollers disposed in a continuous heat treatment furnace for conveying materials to be heat treated. The present invention relates to a heat treatment furnace roller that is excellent in prevention.
（従来の技術）
連続熱処理炉に配設される熱処理炉用ローラは、６００
〜１３００℃の酸化性または還元性の雰囲気温度で長時
間連続して被熱処理材を熱処理しながら搬送させるため
に、熱処理材の付着酸化物または鉄粉などが熱処理炉用
ローラ表面に凝着堆積して、いわゆるビルドアップが形
成されることが多い。(Prior art) A heat treatment furnace roller installed in a continuous heat treatment furnace has a diameter of 600 mm.
In order to convey the heat-treated material while heat-treating it continuously for a long time at an oxidizing or reducing atmosphere temperature of ~1300℃, adhering oxides or iron powder of the heat-treated material are deposited on the surface of the heat treatment furnace roller. As a result, so-called build-up is often formed.
このビルドアップの発生があると、被熱処理材は熱処理
炉用ローラ上を搬送される間に、その表面が傷つけられ
て被熱処理材の品質が低下する原因となり、時にはただ
ちに生産操業を中断して、熱処理炉用ローラの表面を研
削手入することを余儀なくされる。When this build-up occurs, the surface of the material to be heat-treated is damaged while it is being conveyed on the rollers for the heat treatment furnace, causing a decrease in the quality of the material to be heat-treated, and sometimes immediately interrupting production operations. , the surface of the heat treatment furnace roller must be ground and cleaned.
このため、従来から特公昭４７−１８５４号に記載され
ているように、熱処理炉用ローラの材質を高クロム高ニ
ツケル含有の耐熱合金に改良したり、あるいは特公昭５
６−３４６３２号、特公昭５７−２９５４７号に記載さ
れているようにセラミックスと金属のサーメットなどを
溶射被覆する方法が知られている。For this reason, as described in Japanese Patent Publication No. 47-1854, the material of rollers for heat treatment furnaces has been improved to a heat-resistant alloy containing high chromium and high nickel, or
As described in Japanese Patent Publication No. 6-34632 and Japanese Patent Publication No. 57-29547, methods of thermally spraying ceramics and metal cermets are known.
（発明が解決しようとする問題点）
前記耐熱性合金の改良でも凝着堆積に起因するピルドア
ツブの発生防止には効果が薄く、またセラミックスと金
属のサーメットの溶射被覆層はセラミックスの含有量が
少ないと耐ビルドアツプ性に劣り、またＺｒＯ，とＣｏ
のサーメット被覆層では高温雰囲気中で粒子間強度が劣
化して被膜自体の剥脱が生成するという欠点から、高温
強度とビルドアップ防止に優れた熱処理炉用ローラが要
望されていたが、まだ充分に満足し得るものとなってい
ない。(Problems to be Solved by the Invention) Even with the improvement of the heat-resistant alloy, it is not very effective in preventing the occurrence of pilled agglomerates caused by adhesive deposits, and the thermally sprayed coating layer of ceramic and metal cermet has a low ceramic content. and have poor build-up resistance, and ZrO, and Co
The cermet coating layer has the disadvantage that the interparticle strength deteriorates in a high-temperature atmosphere, causing the coating itself to peel off.Therefore, there has been a need for a roller for heat treatment furnaces that has excellent high-temperature strength and build-up prevention, but there is still a lack of sufficient It is not satisfactory.
（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
することのできる熱処理炉用ローラ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熱処理炉用
ローラ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。すなわち本発明は、
Ｚ ｒ Ｏｚ系セラミックスと金属群とよりなるサーメ
ットであって、
前記ＺｒＯ，系セラミックスは、ＭｇＯ，ＹｚＯ３゜Ｃ
ａＯのなかから選ばれるいずれか少なくとも１種５〜２
０重量％、Ｚｒ０ｔ ９５〜８０重量％で、これらの合
計量は１００％であり、
前記金属群は、Ｃｏ、Ｎｉのいずれか１種または２種よ
りなる第１金属群６０〜８０％。(Means for Solving the Problems) The present invention aims to provide a roller for a heat treatment furnace that can eliminate and improve the above-mentioned problems of the prior art, and the scope of the claims The above object can be achieved by providing the roller for a heat treatment furnace as described. That is, the present invention provides a cermet comprising a ZrOz-based ceramic and a metal group, wherein the ZrO-based ceramic is MgO, YzO3°C.
At least one selected from aO 5-2
0% by weight, Zr0t 95-80% by weight, and the total amount thereof is 100%, and the metal group is 60-80% of the first metal group consisting of one or both of Co and Ni.
Ｍｏ、Ｃｒ、ＡＩ 、Ｗ、Ｙのなかから選ばれるいずれ
か少なくとも１種よりなる第２金属群２０〜４０％で、
第１および第２金属群の合計は１００％であり、
ＺｒＯ，系セラミックスと金属群との合計を１００重量
部とするとき、ＺｒＯ□系セラミックスは５０〜８０重
量部、金属群は２０〜５０重量部よりなるサーメットで
あることを特徴とする０、０５〜２．Ｏ１厚さの溶射被
覆されたサーメット層を基体の表面に有する熱処理炉用
ローラに関するものである。20 to 40% of the second metal group consisting of at least one selected from Mo, Cr, AI, W, and Y;
The total of the first and second metal groups is 100%, and when the total of ZrO, ceramics and metal group is 100 parts by weight, ZrO□ ceramics is 50 to 80 parts by weight, and metal group is 20 to 50 parts by weight. 0,05 to 2.0, characterized in that it is a cermet consisting of parts by weight. The present invention relates to a roller for a heat treatment furnace having a spray-coated cermet layer of O1 thickness on the surface of the substrate.
次に本発明の詳細な説明する。Next, the present invention will be explained in detail.
本発明者等は、これら酸化性または還元性雰囲気中で使
用される熱処理炉用ローラに適用すべき、耐摩耗性は勿
論のこと、特に高温強度とビルドアップ防止効果の大き
い被覆材料、ならびにその被覆方法を鋭意研究の結果、
熱処理炉用ローラ基体との密着性に優れ剥離することが
なく、かつ耐ビルドアツプ性にも優れたサーメット層を
ローラ表面に形成した熱処理炉用ローラを新規に知見し
、本発明を完成した。The present inventors have developed a coating material that not only has high wear resistance but also has particularly high high-temperature strength and build-up prevention effect that should be applied to rollers for heat treatment furnaces used in oxidizing or reducing atmospheres, as well as its coating material. As a result of intensive research on coating methods,
The present invention has been completed by newly discovering a roller for a heat treatment furnace in which a cermet layer is formed on the roller surface, which has excellent adhesion to the base of the roller for a heat treatment furnace, does not peel off, and has excellent build-up resistance.
本発明による熱処理炉用ローラは、基体は耐熱鋼で作ら
れ、その表面層部には、ＺｒＯ□系セラミックスと金属
群とよりなるサーメットすなわちＺｒＯ，系セラミック
スとしてＺｒＯ，を８０〜９５％含有し、残部がＭｇＯ
，Ｙｔ○＝、ＣａＯなどから選ばれるいずれか少なくと
も１種のＺｒ０ｚ安定剤からなるＺｒＯ２系セラミック
スを５０〜８０％含有し、残部２０〜５０％の金属群は
、第１金属群と第２金属群とよりなり、Ｃｏ、Ｎｉのい
ずれか１種または２種よりなる第１金属群６０〜８０％
、Ｍｏ、Ｃｒ、ＡＩ 、Ｗ、Ｙのなかから選ばれるいず
れか少なくとも１種よりなる第２金属群２０〜４０％、
第１および第２金属群の合計１００％よりなるサーメッ
トを溶射法により被覆し、０．０５〜２．０ｗｍの厚さ
のサーメット層をローラ表面に形成させたものである。In the roller for a heat treatment furnace according to the present invention, the base is made of heat-resistant steel, and the surface layer contains 80 to 95% of ZrO, that is, a cermet consisting of ZrO□-based ceramics and a metal group. , the remainder is MgO
, Yt○=, CaO, etc., containing 50 to 80% ZrO2-based ceramics consisting of at least one Zr0z stabilizer selected from the group consisting of a first metal group and a second metal group. 60 to 80% of the first metal group consisting of one or two of Co and Ni
, 20-40% of the second metal group consisting of at least one selected from Mo, Cr, AI, W, and Y;
A cermet made of a total of 100% of the first and second metal groups is coated by thermal spraying to form a cermet layer with a thickness of 0.05 to 2.0 wm on the roller surface.
ＺｒＯ□は一般に鉄系金属との濡れ性２反応性が悪いた
めに、高温下で熱処理する熱処理炉の搬送ロールとして
使用する際、耐ビルドアツプ性に対して好適な材料であ
る。一方ＺｒＯ□単体では溶射被覆層がポーラスとなる
と共に結合強度が弱い。Since ZrO□ generally has poor wettability and reactivity with iron-based metals, it is a suitable material for build-up resistance when used as a conveyor roll in a heat treatment furnace that performs heat treatment at high temperatures. On the other hand, when using ZrO□ alone, the sprayed coating layer becomes porous and the bonding strength is weak.
その結果ビルドアップが発生し、また温度変化に対して
剥離が起こり、高温熱処理炉用として使用することは困
難であった。ＺｒＯ，を８０〜９５％に対し、ＺｒＯ，
安定剤ＭｇＯ，ＹｚＯ＋ 、ＣａＯなどを５〜２０％添
加したのは、ＺｒＯ□の結晶形態を単斜晶系から立方晶
系に変え温度による体積変化を緩和させるためである。As a result, build-up occurred and peeling occurred due to temperature changes, making it difficult to use it for high-temperature heat treatment furnaces. ZrO, 80-95%, ZrO,
The reason why 5 to 20% of the stabilizers MgO, YzO+, CaO, etc. is added is to change the crystal form of ZrO□ from monoclinic system to cubic system and to alleviate volume change due to temperature.
本発明では、Ｚ ｒ Ｏを系セラミックスに、第１金属
群としてＣｏ、Ｎｉのいずれか１種または２種を６０〜
８０％、第２金属群としてＭｏ、Ｃｒ。In the present invention, ZrO is used as the ceramic, and one or both of Co and Ni are used as the first metal group in the amount of 60 to 60%.
80%, Mo and Cr as the second metal group.
ＡＩ 、Ｗ、Ｙのなかから選ばれるいずれか少なくとも
１種２０〜４０％よりなる耐熱金属の結合材を適量配合
することによって、高強度でかつ密着性の強い溶射被覆
層を作り、上記ＺｒＯ，単体での問題点を解決したもの
である。By blending an appropriate amount of a heat-resistant metal binder consisting of 20 to 40% of at least one selected from AI, W, and Y, a thermal spray coating layer with high strength and strong adhesion is created, and the ZrO, This solves the problems of a single unit.
この場合、ＺｒＯ，系セラミックスの量が５０％未満に
なると、ビルドアップの発生量が著しく増大し、使用に
耐えなくなるので、ＺｒＯ□系セラミックスは５０％以
上にする必要がある。In this case, if the amount of ZrO-based ceramics is less than 50%, the amount of build-up will significantly increase, making it unusable, so the ZrO□-based ceramics should be at least 50%.
また耐ビルドアツプ性が優れていても、溶射被膜がロー
ラ基体の耐熱鋼から剥離してはならない。Even if the build-up resistance is excellent, the thermal spray coating must not peel off from the heat-resistant steel of the roller base.
この剥離を防止するだけの密着力が必要となる。Adhesion strength is required to prevent this peeling.
この密着力を確保するためには、溶射被覆層内に含まれ
るＣｏ、Ｎｉ 、Ｍｏ、Ｃｒ、Ａｌ 、Ｗ、Ｙなどの結
合材としての耐熱合金の含有量が多い程、密着力は向上
し耐剥離性は向上する。また溶射被覆層の金属成分は、
耐熱金属単体では高温強度に劣るので、延性に優れたＣ
ｏ、Ｎｉのいずれか１種または２種よりなる第１金属群
６０〜８０％。In order to ensure this adhesion, the adhesion will improve as the content of heat-resistant alloys as binders such as Co, Ni, Mo, Cr, Al, W, and Y in the thermal spray coating layer increases. Peeling resistance is improved. In addition, the metal components of the sprayed coating layer are
Heat-resistant metal alone has poor high-temperature strength, so C, which has excellent ductility,
60 to 80% of the first metal group consisting of one or two of Ni.
耐酸化性を寄与する添加剤であるＭｏ、 Ｃｒ、 Ａ
Ｉ 。Mo, Cr, A are additives that contribute to oxidation resistance
I.
Ｗ、Ｙのなかから選ばれるいずれか少なくとも１種より
なる第２金属群２０〜４０％よりなる耐熱合金とする。The heat-resistant alloy is made of 20 to 40% of the second metal group made of at least one selected from W and Y.
溶射被膜の剥離を防止するためには、結合材としての前
記耐熱合金量は、最近２０％以上にする必要がある。In order to prevent peeling of the thermally sprayed coating, the amount of the heat-resistant alloy as a binder needs to be 20% or more.
従って、耐ビルドアツプ性と耐剥離性に優れた高温強度
を確保し、熱処理炉用ローラとしての機能を発揮するた
めには、ＺｒＯ□系セラミックスの適正配合量は５０〜
８０％の範囲内とし、残部前記耐熱合金の適正配合量は
２０〜５０％の範囲内にする必要がある。Therefore, in order to ensure high-temperature strength with excellent build-up resistance and peeling resistance, and to function as a roller for heat treatment furnaces, the appropriate blending amount of ZrO□-based ceramics is 50~
The appropriate amount of the heat-resistant alloy must be within the range of 20 to 50%.
次に、本発明において、溶射被膜の厚さは、０．０５１
１より薄いと被膜が摩耗した際、被膜の効果がなくなっ
てビルドアップの防止がされず、一方被膜が２．０ｆｌ
より厚くなると膜内に応力が蓄積して基体から剥離しや
すくなるので、溶射被膜の厚さは０．０５〜２．０ｆｌ
の範囲内にする必要がある。Next, in the present invention, the thickness of the sprayed coating is 0.051
If the coating is thinner than 1, when the coating is worn, it will lose its effectiveness and will not prevent build-up.
The thicker the coating, the more stress will accumulate within the coating and it will easily peel off from the substrate, so the thickness of the thermal spray coating should be 0.05 to 2.0 fl.
Must be within the range.
なお、本発明において、基体と溶射被膜との密着性をさ
らに向上させるために、基体とサーメット層との間に、
両者の中間の大きさの熱膨張係数をもつ中間層を、１層
もしくは２層以上設ければ被覆安定性がより向上される
。In addition, in the present invention, in order to further improve the adhesion between the substrate and the thermal spray coating, between the substrate and the cermet layer,
The coating stability can be further improved by providing one or more intermediate layers having a coefficient of thermal expansion between the two.
次に本発明を実施例について説明する。Next, the present invention will be explained with reference to examples.
（実施例）
表に示すように、ＺｒＯ，系セラミックスを主成分とし
て、他は３５％Ｃｏ−３０％Ｎｉ−Ｃｒ−Ａｌ −Ｙの
耐熱合金からなる被覆材料を溶射によって、０．３Ｎ厚
さに被膜形成した熱処理用ロールを無酸化雰囲気、使用
温度９６０℃で長時間実験試験した。(Example) As shown in the table, a coating material consisting mainly of ZrO ceramics and a heat-resistant alloy of 35%Co-30%Ni-Cr-Al-Y was coated to a thickness of 0.3N by thermal spraying. A heat treatment roll coated with a film was subjected to a long-term experimental test in a non-oxidizing atmosphere at a working temperature of 960°C.
表に示すように本発明ローラ階３〜６は、非常に優れた
耐ビルドアップ性、耐用性を示し、他の比較ローラ階１
２，７．８に関しては、階１゜２のようにＺｒＯ，系
セラミックスの量が５０％未満であるとピルドアツブが
発生し、また耐熱合金の量が２０％以下になると溶射被
膜の剥離が生ずることがわかる。As shown in the table, roller floors 3 to 6 of the present invention exhibit excellent build-up resistance and durability, compared to other comparative roller floors 1.
Regarding 2 and 7.8, if the amount of ZrO-based ceramics is less than 50%, as in floor 1゜2, pilled aggregation will occur, and if the amount of heat-resistant alloy is less than 20%, peeling of the sprayed coating will occur. I understand that.
さらに、表に示したｌＩ＆１１〜８と同様の被覆材料を
耐熱鋼表面に溶射し、１０００℃に１時間加熱した後水
冷する操作を繰返し、剥離するまでの回数を剥離指数と
した結果を図に示す。図より、耐熱合金の減少により、
耐剥離性の低下が確認され、結合材としての耐熱合金量
は２０％以上、好ましくは３０％以上必要なことがわか
る。Furthermore, the coating material similar to I & 11 to 8 shown in the table was sprayed onto the surface of heat-resistant steel, heated to 1000℃ for 1 hour, and then water-cooled repeatedly, and the number of times until peeling was taken as the peeling index is shown in the figure. show. From the figure, due to the decrease in heat-resistant alloy,
A decrease in peeling resistance was confirmed, indicating that the amount of heat-resistant alloy as a binder is required to be 20% or more, preferably 30% or more.
（発明の効果）
本発明による熱処理炉用ローラは、耐ビルドアツプ性と
高温強度に著しく優れており、熱処理炉用ローラの寿命
延長に大きく貢献するものであり、その効果は大きい。(Effects of the Invention) The roller for a heat treatment furnace according to the present invention has excellent build-up resistance and high-temperature strength, and greatly contributes to extending the life of the roller for a heat treatment furnace.
図は耐熱合金ｉｔ（％）と剥離指数（回）との関係を示
す図である。The figure shows the relationship between heat-resistant alloy it (%) and peeling index (times).
Claims (1)
トであって、 前記ＺｒＯ＿２系セラミックスは、ＭｇＯ、Ｙ＿２Ｏ＿
３ＣａＯのなかから選ばれるいずれか少なくとも１種５
〜２０重量％、ＺｒＯ＿２９５〜８０重量％で、これら
の合計量は１００％であり、 前記金属群は、Ｃｏ、Ｎｉのいずれか１種または２種よ
りなる第１金属群６０〜８０％、Ｍｏ、Ｃｒ、Ａｌ、Ｗ
、Ｙのなかから選ばれるいずれか少なくとも１種よりな
る第２金属群２０〜４０％で、第１および第２金属群の
合計は１００％であり、 ＺｒＯ＿２系セラミックスと金属群との合計を１００重
量部とするとき、ＺｒＯ＿２系セラミックスは５０〜８
０重量部、金属群は２０〜５０重量部よりなるサーメッ
トであることを特徴とする０．０５〜２．０ｍｍ厚さの
溶射被覆されたサーメット層を基体の表面に有する熱処
理炉用ローラ。[Claims] A cermet consisting of ZrO_2 ceramics and a metal group, wherein the ZrO_2 ceramics include MgO, Y_2O_
At least one selected from 3CaO5
~20% by weight, ZrO_295~80% by weight, the total amount of which is 100%, and the metal group includes 60~80% of the first metal group consisting of one or two of Co and Ni, Mo , Cr, Al, W
, Y, the total of the first and second metal groups is 100%, and the total of the ZrO_2 ceramics and the metal group is 100%. When expressed as parts by weight, ZrO_2 ceramics have a content of 50 to 8
A roller for a heat treatment furnace having a thermally sprayed cermet layer with a thickness of 0.05 to 2.0 mm on the surface of a base body, characterized in that the metal group is a cermet consisting of 0 parts by weight and 20 to 50 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19559586A JPS6353249A (en) | 1986-08-22 | 1986-08-22 | Roller for heat-treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19559586A JPS6353249A (en) | 1986-08-22 | 1986-08-22 | Roller for heat-treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6353249A true JPS6353249A (en) | 1988-03-07 |
Family
ID=16343762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19559586A Pending JPS6353249A (en) | 1986-08-22 | 1986-08-22 | Roller for heat-treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6353249A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5023985A (en) * | 1989-02-28 | 1991-06-18 | Valmet Paper Machinery Inc. | Coated roll for a paper making machine |
| US5070587A (en) * | 1989-08-17 | 1991-12-10 | Tocalo Co., Ltd. | Roll for use in heat treating furnace and method of producing the same |
| JP2002530525A (en) * | 1998-11-13 | 2002-09-17 | フォルシュングスツェントルム・ユーリッヒ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Glass-metal / ceramic-insulation layer |
| JP2006283105A (en) * | 2005-03-31 | 2006-10-19 | Jfe Steel Kk | Thermal-sprayed coating for inner structure of furnace and forming method therefor |
| CN104988449A (en) * | 2015-06-19 | 2015-10-21 | 安泰科技股份有限公司 | Thermal barrier ablation-resisting composite coating and preparing method thereof |
| CN115747600A (en) * | 2022-11-15 | 2023-03-07 | 河北邯峰发电有限责任公司 | Laser cladding self-healing ceramic reinforced wear-resistant alloy coating material, composite material and preparation method thereof |
-
1986
- 1986-08-22 JP JP19559586A patent/JPS6353249A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5023985A (en) * | 1989-02-28 | 1991-06-18 | Valmet Paper Machinery Inc. | Coated roll for a paper making machine |
| US5070587A (en) * | 1989-08-17 | 1991-12-10 | Tocalo Co., Ltd. | Roll for use in heat treating furnace and method of producing the same |
| JP2002530525A (en) * | 1998-11-13 | 2002-09-17 | フォルシュングスツェントルム・ユーリッヒ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Glass-metal / ceramic-insulation layer |
| JP2006283105A (en) * | 2005-03-31 | 2006-10-19 | Jfe Steel Kk | Thermal-sprayed coating for inner structure of furnace and forming method therefor |
| CN104988449A (en) * | 2015-06-19 | 2015-10-21 | 安泰科技股份有限公司 | Thermal barrier ablation-resisting composite coating and preparing method thereof |
| CN115747600A (en) * | 2022-11-15 | 2023-03-07 | 河北邯峰发电有限责任公司 | Laser cladding self-healing ceramic reinforced wear-resistant alloy coating material, composite material and preparation method thereof |
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