JPS643942B2 - - Google Patents
Info
- Publication number
- JPS643942B2 JPS643942B2 JP56060062A JP6006281A JPS643942B2 JP S643942 B2 JPS643942 B2 JP S643942B2 JP 56060062 A JP56060062 A JP 56060062A JP 6006281 A JP6006281 A JP 6006281A JP S643942 B2 JPS643942 B2 JP S643942B2
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- sio
- weight
- ceramic
- mgo
- 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
Links
- 239000011247 coating layer Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 20
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 238000005524 ceramic coating Methods 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 230000035939 shock Effects 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 239000011195 cermet Substances 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- -1 sink rolls Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
- C23C2/0034—Details related to elements immersed in bath
- C23C2/00342—Moving elements, e.g. pumps or mixers
- C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Inorganic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】
本発明は耐食性にすぐれた溶融金属浴用部材に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a member for a molten metal bath having excellent corrosion resistance.
連続溶融金属めつきを行なう溶融金属浴内に
は、シンクロール、コーテイングロールおよびそ
れらの軸受、フレーム等、溶融金属と直接々触す
る各種部品ないし部材が配設される。これら部材
等は侵食が著しく、特にロールの場合にはその表
面に侵食による凹凸状の肌荒れが生ずると、これ
を通過する薄板めつき鋼板の表面に押疵が発生
し、致命的欠陥となる。 In a molten metal bath in which continuous molten metal plating is performed, various parts and members that come into direct contact with molten metal, such as sink rolls, coating rolls, their bearings, and frames, are arranged. These members are subject to significant erosion, and when the surface of a roll becomes uneven due to erosion, dents occur on the surface of the thin plated steel plate that passes through it, resulting in a fatal defect.
そのため、防食手段として表面にセラミツク系
材料を溶射被覆したロールが試みられたことはあ
るが、従来のセラミツク材料は粒子間の結合力が
弱く、従つて、めつき浴温度（例えば溶融亜鉛浴
では約450℃以上）におけるロール等の基材とセ
ラミツク層の熱膨張係数の差異により亀裂脱落が
発生し、十分なる侵食防止効果を得ることができ
ず、結局ロールの頻繁な取替を必要とし、ライン
の休止に伴なう生産性の著しい低下を余儀なくさ
れているのが実情である。 For this reason, attempts have been made to use rolls whose surfaces are spray-coated with ceramic material as a means of corrosion protection, but conventional ceramic materials have weak bonding strength between particles, and therefore the plating bath temperature (for example, in a molten zinc bath The difference in thermal expansion coefficient between the base material such as the roll and the ceramic layer at temperatures above 450℃ causes cracks to fall off, making it impossible to obtain a sufficient corrosion prevention effect, resulting in the need for frequent roll replacement. The reality is that productivity has been forced to drop significantly due to line suspensions.
本発明は、上記問題を解消した耐久性にすぐれ
た溶融金属浴用部材を提供する。その特徴とする
ところは、前述部品、部材等の表面に、SiO2約
15〜45重量％、MgO約５〜40％、残部ZrO2から
なるセラミツク被覆層を施したことにある。 The present invention provides a molten metal bath member with excellent durability that solves the above problems. The feature is that approximately SiO 2 is added to the surface of the aforementioned parts and materials.
A ceramic coating layer consisting of 15-45% by weight of MgO, about 5-40% of MgO, and the balance ZrO2 is applied.
上記組成のセラミツク被覆層は強固な粒子間結
合力を有し、金属浴中で長期間剥離・脱落するこ
となく安定した侵食防止効果を発揮する。 The ceramic coating layer having the above composition has a strong interparticle bonding force, and exhibits a stable corrosion prevention effect without peeling or falling off in a metal bath for a long period of time.
セラミツク被覆材の成分組成限定理由は次のと
おりである。 The reasons for limiting the composition of the ceramic coating material are as follows.
SiO2は粒子間結合力を高める。第１図にSiO2
−MgO−ZrO2系セラミツクの溶射被覆層の500
℃における粒子間結合力とSiO2量の関係を示す。
該結合力はSiO2量とともに増加し、約10〜20重
量％の範囲で急増して、そのご漸増傾向に移行す
る。一方、SiO2量は第２図に示すように被覆層
形成の際の溶射歩留りに影響を与え、SiO2約30
〜45重量％で最大値となり、その後はSiO2の増
加とともに急激に低下する。従つて、溶射歩留り
を損なわずに高い粒子間結合力を得るため、
SiO2含有量は約15〜45重量％とする。 SiO 2 increases the bonding force between particles. Figure 1 shows SiO 2
-MgO-ZrO 2 ceramic sprayed coating layer 500
The relationship between interparticle bonding force and SiO 2 amount at °C is shown.
The bonding strength increases with the amount of SiO2 , rapidly increasing in the range of about 10-20% by weight, and then transitioning to a gradual increasing trend. On the other hand, as shown in Figure 2, the amount of SiO 2 affects the thermal spraying yield when forming the coating layer, and the amount of SiO 2 is approximately 30
It reaches a maximum value at ~45 wt% and then decreases rapidly with increasing SiO2 . Therefore, in order to obtain high interparticle bonding strength without impairing the thermal spraying yield,
The SiO2 content is approximately 15-45% by weight.
MgOは、SiO2とZrO2の融合を確実なものとす
る安定剤としての役割を有し、得られるセラミツ
ク被覆層の耐熱衝撃性を左右する。第３図に
MgO量と耐熱衝撃性（溶射被覆層を温度500℃か
ら20℃に水冷する熱衝撃を繰返したときの、剥離
に到るまでの熱衝撃回数）の関係を示す。図か
ら、MgO含有量約５〜40重量％の範囲で安定剤
として良く働き、良好な耐熱衝撃性が得られるこ
とがわかる。 MgO has the role of a stabilizer that ensures the fusion of SiO 2 and ZrO 2 and influences the thermal shock resistance of the resulting ceramic coating layer. In Figure 3
The relationship between the amount of MgO and thermal shock resistance (the number of thermal shocks until peeling occurs when the sprayed coating layer is repeatedly subjected to water cooling from 500°C to 20°C) is shown. From the figure, it can be seen that the MgO content in the range of about 5 to 40% by weight works well as a stabilizer and good thermal shock resistance can be obtained.
上記組成のセラミツク材料にて部材などの表面
に形成させる被覆層厚さは、確実な防食効果を得
るために約0.2mm以上とするのが好ましい。たゞ
し、あまり厚くすると、被覆層の内部応力が大き
くなり、熱衝撃に伴なう剥離や亀裂が生じ易くな
つて却つて防食効果を損なう。第４図に被覆層厚
さと耐熱衝撃性（前記第３図の熱衝撃回数と同
義）の関係を示す。これより被覆層厚さの上限は
好ましくは約2.5mmとすべきことがわかる。 The thickness of the coating layer formed on the surface of the member using the ceramic material having the above composition is preferably about 0.2 mm or more in order to obtain a reliable anticorrosion effect. However, if it is made too thick, the internal stress of the coating layer becomes large, and peeling and cracking due to thermal shock are likely to occur, which actually impairs the anticorrosion effect. FIG. 4 shows the relationship between coating layer thickness and thermal shock resistance (synonymous with the number of thermal shocks shown in FIG. 3). This shows that the upper limit of the coating layer thickness should preferably be about 2.5 mm.
なお、セラミツク被覆が施こされる部材等の材
質は、それら部材等の基材たる鋼をはじめとする
各種用途に応じた材料であつてよく、例えば溶融
亜鉛溶中のシンクロールやコーテイングロールな
どの材料としては、25Cr−12Ni鋼、13Cr鋼等の
ステンレス鋼、または低炭素極軟鋼製のものが汎
用されているが、これらの基材表面に上記セラミ
ツク被覆層をもうけることによつて部材の耐用寿
命は著しく高められる。なお、25Cr−12Ni鋼、
13Cr鋼は熱膨張係数が大きいので、そのような
材料を基材とするときは、基材とセラミツク層と
の間に、両者の中間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。 The materials to which ceramic coating is applied may be materials suitable for various uses, including steel as the base material for these members, such as sink rolls and coating rolls during molten zinc melting. Stainless steel such as 25Cr-12Ni steel and 13Cr steel, or low-carbon ultra-mild steel are commonly used as materials, but by providing the above-mentioned ceramic coating layer on the surface of these base materials, the material of the member can be improved. Service life is significantly increased. In addition, 25Cr−12Ni steel,
Since 13Cr steel has a large coefficient of thermal expansion, when such a material is used as a base material, one or more intermediate layers with a coefficient of thermal expansion between the base material and the ceramic layer are provided between the base material and the ceramic layer. If two or more layers are provided, coating stability is further improved.
次に本発明の実施例について説明する。 Next, examples of the present invention will be described.
実施例 １
基材として極軟鋼を用い、その表面に、
SiO220重量％、MgO10重量％およびZrO270重量
％からなるセラミツクを溶射し、その表面に層厚
0.6mmの被覆層を形成したコーテイングロールを
溶融亜鉛めつき装置に取付けて使用したところ、
30日経過後にも侵食を全くうけることがなく、ま
た被覆層の亀裂、剥離等も皆無であり、従来の
25Cr−12Niステンレス鋼ロールに比し、５倍以
上の耐寿命が得られた。Example 1 Using extremely mild steel as the base material, on its surface,
A ceramic consisting of 20% by weight of SiO 2 , 10% by weight of MgO and 70% by weight of ZrO 2 is sprayed, and a layer thickness is applied to the surface.
When a coating roll with a 0.6mm coating layer was attached to a hot-dip galvanizing machine,
Even after 30 days, there was no corrosion at all, and there was no cracking or peeling of the coating layer, compared to conventional
A lifespan more than 5 times longer than that of a 25Cr-12Ni stainless steel roll was obtained.
実施例 ２
13Cr鋼基材表面に、膨張係数９×10-6なるサー
メツト中間層を0.2mm施し、その上にSiO235重量
％、MgO30重量％およびZrO235重量％からなる
セラミツクを溶射被覆して、厚さ0.6mmの被覆層
を形成したシンクロールを溶融亜鉛めつき装置に
取付けて使用した結果、30日経過後にも、何ら侵
食は認められず、被覆層の亀裂・剥離等も全くな
く、従来の25Crー15Niステンレス鋼ロールにく
らべて５倍以上の耐用寿命が得られた。Example 2 A 0.2 mm cermet intermediate layer with an expansion coefficient of 9 x 10 -6 was applied to the surface of a 13Cr steel base material, and a ceramic layer consisting of 35% by weight of SiO 2 , 30% by weight of MgO and 35% by weight of ZrO 2 was coated on top by thermal spraying. As a result of using a sink roll with a coating layer of 0.6 mm thick attached to a hot-dip galvanizing machine, no corrosion was observed even after 30 days, and there was no cracking or peeling of the coating layer. It has a service life that is more than 5 times longer than that of conventional 25Cr-15Ni stainless steel rolls.
実施例 ３
第５図のように25Cr−12Ni鋼基材１の表面に、
熱膨張係数13×10-6なるサーメツトの中間層２お
よび９×10-6なるサーメツトの中間層３を、各
0.2mm厚ずつ溶射形成し、その表面にSiO235重量
％、MgO30重量％およびZrO235重量％からなる
セラミツクを溶射被覆して、厚さ0.6mmの被覆層
４を形成したコーテイングロールを、溶融亜鉛め
つき装置に取付けて使用したところ、30日経過後
にも何らの侵食も認められず、被覆層の亀裂や剥
離なども全くなく、従来の25Cr−12Niステンレ
ス鋼ロールに比べ５倍以上の耐用寿命が得られ
た。Example 3 As shown in Fig. 5, on the surface of the 25Cr-12Ni steel base material 1,
The intermediate layer 2 of cermet with a coefficient of thermal expansion of 13×10 -6 and the intermediate layer 3 of cermet with a coefficient of thermal expansion of 9×10 -6 are each
A coating roll was thermally sprayed to a thickness of 0.2 mm, and its surface was thermally coated with ceramic consisting of 35% by weight of SiO 2 , 30% by weight of MgO, and 35% by weight of ZrO 2 to form a coating layer 4 with a thickness of 0.6 mm. When installed and used in hot-dip galvanizing equipment, no corrosion was observed after 30 days, and there was no cracking or peeling of the coating layer, and the roll strength was more than 5 times that of conventional 25Cr-12Ni stainless steel rolls. A durable life was obtained.
上記実施例に挙げた溶融金属めつき装置のコー
テイングロールやシンクロールは溶融金属浴用部
材のなかでも特に苛酷な条件下に使用されるもの
であるが、本発明によれば、これらロールを侵食
から確実に防止し、その耐用寿命を著しく高め、
ひいてはその装置の生産性の飛躍的な向上をもた
らす。なお、本発明は溶融金属めつき装置の部材
に限られず、その他に鋼材の熱処理用金属浴等に
使用される各種部材に適用して上記と同様の効果
を奏することは言うまでもない。また本発明によ
れば、セラミツク被覆層と基材との間に、それら
の中間の大きさの熱膨張係数をもつ１層または２
層以上の中間層を設けているので、被覆安定性を
向上して、耐用寿命を向上することが可能にな
る。 The coating rolls and sink rolls of the molten metal plating apparatus mentioned in the above embodiments are used under particularly harsh conditions among the molten metal bath members, but according to the present invention, these rolls can be protected from corrosion. Reliably prevents and significantly increases its service life.
This in turn brings about a dramatic improvement in the productivity of the device. It goes without saying that the present invention is not limited to members of molten metal plating equipment, but can be applied to various other members used in metal baths for heat treatment of steel materials, etc., to achieve the same effects as described above. Further, according to the present invention, one or two layers having a coefficient of thermal expansion intermediate between the ceramic coating layer and the base material are provided.
Since the intermediate layer is provided, it is possible to improve the coating stability and extend the service life.
第１図はSiO2−MgO−ZrO2系セラミツク溶射
被覆層のSiO2含有量と粒子間結合力の関係を示
すグラフ、第２図はSiO2−MgO−ZrO2系セラミ
ツクのSiO2含有量と溶射歩留りの関係を示すグ
ラフ、第３図はSiO2−MgO−ZrO2系セラミツク
溶射被覆層のMgO含有量と耐熱衝撃性の関係を
示すグラフ、第４図はSiO2−MgO−ZrO2系セラ
ミツク溶射被覆層の層厚と耐熱衝撃性の関係を示
すグラフ、第５図は本発明の一実施例の断面図で
ある。
Figure 1 is a graph showing the relationship between the SiO 2 content and interparticle bonding strength of the SiO 2 -MgO-ZrO 2 ceramic spray coating layer, and Figure 2 is the graph showing the SiO 2 content of the SiO 2 -MgO-ZrO 2 ceramic. Figure 3 is a graph showing the relationship between MgO content and thermal shock resistance of SiO 2 -MgO-ZrO 2 based ceramic spray coating layer, Figure 4 is SiO 2 -MgO-ZrO 2 FIG. 5 is a graph showing the relationship between the layer thickness and thermal shock resistance of a thermally sprayed ceramic coating layer, and is a sectional view of an embodiment of the present invention.
Claims (1)
ZrO2からなるセラミツク被覆層を施してなる溶
融金属浴用部材。 ２ 該セラミツク被覆層厚が0.2〜2.5mmである特
許請求の範囲第１項記載の溶融金属浴用部材。 ３ SiO215〜45重量％、MgO5〜40重量％、残部
ZrO2からなるセラミツク被覆層と、基材との間
に、セラミツク被覆層と基材との中間の大きさの
熱膨張係数をもつ１層または２層以上の中間層を
有する溶融金属浴用部材。[Claims] 1 SiO 2 15-45% by weight, MgO 5-40% by weight, balance
A member for molten metal baths with a ceramic coating layer made of ZrO 2 . 2. The molten metal bath member according to claim 1, wherein the ceramic coating layer has a thickness of 0.2 to 2.5 mm. 3 SiO 2 15-45% by weight, MgO 5-40% by weight, balance
A member for a molten metal bath having one or more intermediate layers having a coefficient of thermal expansion intermediate between that of the ceramic coating layer and the base material, between a ceramic coating layer made of ZrO 2 and a base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56060062A JPS57174440A (en) | 1981-04-20 | 1981-04-20 | Member for molten metallic bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56060062A JPS57174440A (en) | 1981-04-20 | 1981-04-20 | Member for molten metallic bath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57174440A JPS57174440A (en) | 1982-10-27 |
| JPS643942B2 true JPS643942B2 (en) | 1989-01-24 |
Family
ID=13131216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56060062A Granted JPS57174440A (en) | 1981-04-20 | 1981-04-20 | Member for molten metallic bath |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57174440A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1302805C (en) * | 1986-05-15 | 1992-06-09 | Thomas Alan Taylor | Liquid film coating of iron-based metals |
| JPH0516212Y2 (en) * | 1987-08-21 | 1993-04-28 | ||
| JPH04124254A (en) * | 1990-09-12 | 1992-04-24 | Nippon Steel Corp | Roll bearing for hot-dip metal coating |
| FR2679571B1 (en) * | 1991-07-26 | 1994-07-01 | Vesuvius France Sa | METHOD FOR DEPOSITING METAL OR METAL ALLOYS ONTO A METAL STRIP AND GUIDING PARTS FOR CARRYING OUT SAID METHOD. |
| FR2694304B1 (en) * | 1992-07-29 | 1994-09-30 | France Sa Union Miniere | Use of metal parts with surface coating for molten metal baths and metal parts usable for such baths. |
| CN1058691C (en) * | 1994-07-21 | 2000-11-22 | 王旭 | Method for manufacturing cermet elongated pipe |
| JP3312709B2 (en) * | 1994-10-24 | 2002-08-12 | 新日本製鐵株式会社 | Immersion roll for continuous galvanizing |
| JPH10306362A (en) * | 1997-04-28 | 1998-11-17 | Nippon Steel Hardfacing Co Ltd | Member for hot dip metal bath in which composite sprayed coating excellent in corrosion resistance to hot dip metal and peeling resistance is formed |
| JP2005179766A (en) * | 2003-12-19 | 2005-07-07 | Murata Boring Giken Kk | Corrosion-resistant / insulating material and manufacturing method thereof |
| JP5672749B2 (en) * | 2010-04-01 | 2015-02-18 | 日立金属株式会社 | Roll for hot metal plating bath |
-
1981
- 1981-04-20 JP JP56060062A patent/JPS57174440A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57174440A (en) | 1982-10-27 |
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