JPH07138721A - Continuous molten metal plating apparatus and sliding structure used therefor - Google Patents
Continuous molten metal plating apparatus and sliding structure used thereforInfo
- Publication number
- JPH07138721A JPH07138721A JP5288899A JP28889993A JPH07138721A JP H07138721 A JPH07138721 A JP H07138721A JP 5288899 A JP5288899 A JP 5288899A JP 28889993 A JP28889993 A JP 28889993A JP H07138721 A JPH07138721 A JP H07138721A
- Authority
- JP
- Japan
- Prior art keywords
- sintered body
- molten metal
- roll
- sliding surface
- bearing
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 64
- 239000002184 metal Substances 0.000 title claims abstract description 64
- 238000007747 plating Methods 0.000 title claims abstract description 34
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 23
- LGLOITKZTDVGOE-UHFFFAOYSA-N boranylidynemolybdenum Chemical compound [Mo]#B LGLOITKZTDVGOE-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052582 BN Inorganic materials 0.000 claims abstract description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 5
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims abstract description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 12
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 15
- 238000005260 corrosion Methods 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 2
- 239000011195 cermet Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- 229910017318 Mo—Ni Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- -1 cemented carbide Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Coating With Molten Metal (AREA)
Abstract
(57)【要約】
【目的】 メッキ用溶融金属浴中で鋼ストリップをガイ
ドして回転するロールとその軸受との摺動部を構成する
に好適な摺動構造物を提供する。
【構成】 金属溶湯中で回転するロールとその軸受との
摺動面を形成するロールの軸摺動面および軸受の摺動面
のいずれか一方をセラミックス焼結体から、他方をホウ
化モリブデンとニッケルとの混合焼結体から構成する。
セラミックス焼結体をサイアロン、窒化ケイ素、炭化ケ
イ素、ジルコニア、窒化ボロン、窒化アルミニウムのい
ずれかから構成し、混合焼結体を硬さＨｖ１４００〜７
００とし、セラミックス焼結体より低くするのがよい。
【効果】 耐食耐摩耗性のセラミックス焼結体と、耐食
耐摩耗性、潤滑特性に優れた混合焼結体とを組み合せた
摺動部により、メッキ装置を長時間運転できる。
(57) [Abstract] [PROBLEMS] To provide a sliding structure suitable for forming a sliding portion between a roller that guides and rotates a steel strip in a molten metal bath for plating and its bearing. [Structure] One of a shaft sliding surface of a roll that forms a sliding surface between a roll rotating in molten metal and its bearing and a sliding surface of the bearing is made of a ceramic sintered body, and the other is made of molybdenum boride. It is composed of a mixed sintered body with nickel.
The ceramic sintered body is made of sialon, silicon nitride, silicon carbide, zirconia, boron nitride, or aluminum nitride, and the mixed sintered body has a hardness of Hv1400-7.
00, and it is better to make it lower than the ceramics sintered body. [Effect] The plating unit can be operated for a long time due to the sliding portion in which the corrosion-resistant and abrasion-resistant ceramics sintered body and the mixed sintered body having excellent corrosion-resistant and abrasion-resistant and lubricating characteristics are combined.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼ストリップを連続的
にメッキする連続溶融金属メッキ装置及びそれに用いる
摺動構造物に係り、特に溶融金属による腐食に対して、
また溶融金属浴中で鋼ストリップを案内するロールから
の荷重による摩耗に対して優れた特性を有する軸受装置
を構成する摺動構造物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous molten metal plating apparatus for continuously plating a steel strip and a sliding structure used therefor, and particularly to corrosion by molten metal.
The present invention also relates to a sliding structure that constitutes a bearing device having excellent characteristics against wear due to a load from a roll that guides a steel strip in a molten metal bath.
【０００２】[0002]
【従来の技術】従来、連続溶融金属メッキ浴用ロール軸
受としては、耐食性に優れたステンレス鋼、高クロム
鋼、超硬などが、摺動面に肉盛溶接されて、あるいはス
リーブの形で用いられてきた。しかし、これらの材料は
例えば亜鉛メッキ浴中では１週間程度で摩耗損傷し、ロ
ール軸と軸受の間にガタが生じ、ロールやメッキ装置が
振動して、メッキ特性を著しく下げるといった問題があ
った。その原因としては、ステンレス鋼、高クロム鋼、
超硬等の比較的耐食性に優れた金属でも溶融金属による
腐食を皆無にすることは難しく、ロール軸受摺動時には
摩擦による摩耗と同時に溶融金属による腐食摩耗が生じ
るために、摺動面の摩耗量を増大させていることがわか
った。特に腐食がある程度進行すると、ロール軸と軸受
との摺動面に腐食ピットが生じ、摺動面の摩擦摩耗を加
速することもわかった。2. Description of the Related Art Conventionally, as a roll bearing for a continuous molten metal plating bath, stainless steel, high chromium steel, cemented carbide or the like having excellent corrosion resistance has been used by overlay welding on a sliding surface or in the form of a sleeve. Came. However, there is a problem in that these materials are worn and damaged in a galvanizing bath for about one week, looseness occurs between the roll shaft and the bearing, and the roll and the plating device vibrate to significantly deteriorate the plating characteristics. . The causes are stainless steel, high chrome steel,
It is difficult to completely eliminate corrosion by molten metal even with metals such as cemented carbide, which has a relatively high corrosion resistance, and the amount of wear on the sliding surface is caused by frictional wear and molten metal corrosion at the same time as the rolling bearing slides. Was found to increase. It was also found that when corrosion progresses to some extent, a corrosion pit is formed on the sliding surface between the roll shaft and the bearing, and the frictional wear on the sliding surface is accelerated.
【０００３】したがって、ロール軸受において摩耗量を
下げる為には溶融金属を対する耐食性に優れた材料を選
定する必要がある。その点、セラミックスの中には溶融
金属にほとんど腐食を受けないものがあり、その様なセ
ラミックスは溶融金属メッキ浴用ロール軸受として最適
材料と言える。Therefore, in order to reduce the amount of wear in the roll bearing, it is necessary to select a material having excellent corrosion resistance against molten metal. In that respect, some ceramics are hardly corroded by the molten metal, and such ceramics can be said to be an optimum material for a roll bearing for a molten metal plating bath.
【０００４】ところで、溶融金属メッキ浴中で使用され
る軸受において、固定側部材をセラミックス、回転側部
材を高硬度の炭化物を含むサーメットとすることが特開
平５−４４００２号公報に開示されている。By the way, in a bearing used in a molten metal plating bath, it is disclosed in JP-A-5-44002 that the stationary member is made of ceramics and the rotating member is made of cermet containing high-hardness carbide. .
【０００５】[0005]
【発明が解決しようとする課題】上記従来技術おいて
は、摩擦係数の点について配慮されていない。つまり、
サーメットに含まれる炭化物は非常に高硬度であり、代
表的なサーメト用炭化物であるＷＣやＴiＣは硬度がＨ
ｖ２０００以上であるため、セラミックスとの摺動にお
いてかじり現象が生じて摩擦係数が増大する。また、軸
受の押付荷重（面圧）が１０ kgf/cm2を超える場合には
かじり現象は特に顕著となり、サーメット中に含まれる
炭化物粒子の脱落が生じるようになり、摩耗量も増加し
て良好な摺動及び回転特性は得られない。さらに、炭化
物を含むサーメットではマトリックス金属としてＣoや
Ｎiを用いるが、溶融金属中（Ｚn、Ａl）ではＣoやＮi
の腐食によりマトリックス強度が弱くなり、やはり炭化
物粒子の脱落が生じて摩耗量が増大する問題があった。In the above-mentioned prior art, no consideration is given to the coefficient of friction. That is,
The carbide contained in cermet has a very high hardness, and the hardness of typical cermet carbides such as WC and TiC is H.
Since it is v2000 or more, a galling phenomenon occurs during sliding with ceramics, and the friction coefficient increases. Further, when the pressing load (contact pressure) of the bearing exceeds 10 kgf / cm 2 , the galling phenomenon becomes particularly noticeable, the carbide particles contained in the cermet come off, and the wear amount increases, which is good. No good sliding and rotating characteristics can be obtained. Further, in cermets containing carbide, Co and Ni are used as matrix metals, but in molten metal (Zn, Al), Co and Ni are used.
However, there is a problem that the matrix strength is weakened due to the corrosion of No. 1, and the carbide particles are also dropped off to increase the wear amount.
【０００６】本発明の目的は、メッキ用溶融金属浴中で
鋼ストリップをガイドして回転するロールの軸受部の長
寿命化を図り、連続運転時間が長く、かつ円滑なロール
回転が得られる連続溶融金属メッキ装置及びその軸受部
に用いる摺動構造物を提供することにある。It is an object of the present invention to extend the life of the bearing portion of a roll that guides and rotates a steel strip in a bath of molten metal for plating, so that continuous operation time is long and smooth roll rotation can be obtained. It is intended to provide a sliding structure used for a molten metal plating apparatus and a bearing portion thereof.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明の連続溶融金属メッキ装置は、連続的に供給
される被メッキ材をガイドするべく金属溶湯中で回転す
るロールとこのロールを支持する軸受とを備えたメッキ
装置において、ロールの軸摺動面および軸受の摺動面の
いずれか一方が炭化物、窒化物、酸化物より選ばれたセ
ラミックス焼結体から構成され、他方が金属とのホウ化
物からなる焼結体から構成されたことを特徴とする。In order to achieve the above object, a continuous molten metal plating apparatus of the present invention comprises a roll which rotates in a molten metal for guiding a continuously supplied material to be plated, and this roll. In a plating apparatus equipped with a bearing that supports a roller, one of the roll sliding surface of the roll and the sliding surface of the bearing is made of a ceramic sintered body selected from carbide, nitride, and oxide, and the other is It is characterized in that it is composed of a sintered body made of a boride with a metal.
【０００８】例えば、上記ロールの軸摺動面および軸受
の摺動面のいずれか一方をサイアロン、窒化ケイ素、炭
化ケイ素、ジルコニア、窒化ボロン、窒化アルミニウム
のいずれかからなるセラミックス焼結体から構成し、他
方をホウ化モリブデンとニッケルとからなる混合焼結体
から構成する。この場合に、混合焼結体の硬さをＨｖ１
４００〜７００として、セラミックス焼結体より硬度を
低くするのがよい。For example, one of the shaft sliding surface of the roll and the sliding surface of the bearing is made of a ceramic sintered body made of sialon, silicon nitride, silicon carbide, zirconia, boron nitride, or aluminum nitride. The other is composed of a mixed sintered body composed of molybdenum boride and nickel. In this case, the hardness of the mixed sintered body is Hv1.
The hardness is preferably 400 to 700 and lower than that of the ceramic sintered body.
【０００９】また上記目的を達成するために、本発明の
摺動構造物は、連続的に供給される被メッキ材をガイド
するべく金属溶湯中で回転するロールとこのロールを支
持する軸受との摺動面を形成する構造物であって、摺動
面を形成するロールの軸摺動面および軸受の摺動面のい
ずれか一方が炭化物、窒化物、酸化物より選ばれたセラ
ミックス焼結体から構成され、他方が金属とのホウ化物
からなる焼結体から構成されたことを特徴とする。In order to achieve the above object, the sliding structure of the present invention comprises a roll that rotates in a molten metal to guide a material to be continuously supplied and a bearing that supports the roll. A structure for forming a sliding surface, wherein either one of a shaft sliding surface of a roll and a sliding surface of a bearing forming the sliding surface is a ceramic sintered body selected from carbide, nitride and oxide. And the other is a sintered body made of a boride with a metal.
【００１０】上記同様に、ロールの軸摺動面および軸受
の摺動面のいずれか一方をサイアロン、窒化ケイ素、炭
化ケイ素、ジルコニア、窒化ボロン、窒化アルミニウム
のいずれかからなるセラミックス焼結体から構成し、他
方をホウ化モリブデンとニッケルとからなる混合焼結体
から構成する場合、混合焼結体の硬さをＨｖ１４００〜
７００として、セラミックス焼結体より硬度を低くする
のがよい。Similarly to the above, either one of the shaft sliding surface of the roll and the sliding surface of the bearing is composed of a ceramic sintered body made of sialon, silicon nitride, silicon carbide, zirconia, boron nitride or aluminum nitride. When the other is composed of a mixed sintered body made of molybdenum boride and nickel, the hardness of the mixed sintered body is Hv1400 to Hv1400.
The hardness of 700 is preferably lower than that of the ceramic sintered body.
【００１１】[0011]
【作用】セラミックス焼結体は、耐摩耗性に優れ、また
メッキ材である溶融金属（Ｚn、Ａl）にほとんど腐食を
受けないため溶融金属中で使用する摺動材として最適で
ある。The ceramic sintered body has excellent wear resistance and is hardly corroded by the molten metal (Zn, Al) which is the plating material, and is therefore most suitable as a sliding material used in the molten metal.
【００１２】また、金属とのホウ化物として、ホウ化モ
リブデンとＮiとの焼結体は、ホウ化モリブデンとＮiの
含有量及び焼結温度を調節することにより、マトリック
スがほとんどＢ−Ｍo−Ｎi三元ホウ化物となり、溶融金
属に対する耐食性が著しく向上し、腐食摩耗を抑制する
ことができる。さらに、Ｎi含有量及び焼結温度を調節
して、混合焼結体の硬度もＨｖ７００〜１４００に制御
することができ、セラミックス焼結体との組み合せにお
いて、セラミックス焼結体の硬度よりも少くとも２０％
小さくすることにより、高面圧（５０ kgf/cm2以上）で
摺動する際にもかじり現象を防止することができる。ま
た、混合焼結体は溶融金属との濡れ性にも優れるため、
摺動において溶融金属による潤滑効果があり、摩擦係数
を０.２以下にすることができる。As a boride with a metal, a sintered body of molybdenum boride and Ni has almost no B-Mo-Ni matrix by controlling the contents of molybdenum boride and Ni and the sintering temperature. It becomes a ternary boride, and the corrosion resistance to molten metal is significantly improved, and corrosive wear can be suppressed. Furthermore, the hardness of the mixed sintered body can be controlled to Hv 700 to 1400 by adjusting the Ni content and the sintering temperature. In combination with the ceramic sintered body, the hardness is at least lower than that of the ceramic sintered body. 20%
By making it small, it is possible to prevent the galling phenomenon even when sliding under a high surface pressure (50 kgf / cm 2 or more). Further, since the mixed sintered body has excellent wettability with the molten metal,
There is a lubricating effect by the molten metal in sliding, and the friction coefficient can be 0.2 or less.
【００１３】金属とのホウ化物は、金属として存在しな
いので、溶融金属に対して不溶性となり、高い耐食性を
有する。金属としてＶ，Ｎb，Ｔa，Ｔi，Ｚr，Ｈf，Ｃ
r，Ｗ，Ｆe，Ｃo等が用いられる。これらの金属とこれ
らのホウ化物との混合体の割合を調整し、これらの一体
のホウ化物を作るようにしたものである。Since a boride with a metal does not exist as a metal, it becomes insoluble in molten metal and has high corrosion resistance. V, Nb, Ta, Ti, Zr, Hf, C as metal
r, W, Fe, Co, etc. are used. The ratio of the mixture of these metals and these borides is adjusted so as to form these integral borides.
【００１４】[0014]
〔実施例１〕図１は本発明に係る連続溶融金属メッキ装
置の全体構成図である。この連続溶融金属メッキ装置
は、概して、メッキ用溶融金属浴１１を貯えるメッキ槽
１２と、溶融金属浴１１中に沈められ上方から送給され
た鋼ストリップ１３を半巻掛けして上方へと方向転換さ
せるシンクロール装置１４と、溶融金属浴１１中でシン
クロール装置１４から上方に走行する鋼ストリップ１３
の両面に当接してガイドするサポートロール装置１５
と、溶融金属浴１１面上方でサポートロール装置１５か
ら上方に走行する鋼ストリップ１３の両面に高速ガスを
吹き付けるワイピングノズル１６とから構成されてい
る。シンクロール装置１４は１本のシンクロール１７と
そのシンクロール１７の両端部を支持する軸受１８を有
し、またサポートロール装置１５は２本のサポートロー
ル１９，２０と、各サポートロール１９，２０それぞれ
の両端を支持する軸受２１、２２を有している。[Embodiment 1] FIG. 1 is an overall configuration diagram of a continuous molten metal plating apparatus according to the present invention. This continuous molten metal plating apparatus generally has a plating tank 12 that stores a molten metal bath 11 for plating, and a steel strip 13 that is submerged in the molten metal bath 11 and fed from above and is wound half way to the upward direction. A sink roll device 14 for converting and a steel strip 13 running upwards from the sink roll device 14 in the molten metal bath 11.
Support roll device 15 that abuts on both sides of the guide
And a wiping nozzle 16 that blows high-speed gas onto both surfaces of the steel strip 13 that travels upward from the support roll device 15 above the surface of the molten metal bath 11. The sink roll device 14 has one sink roll 17 and bearings 18 that support both ends of the sink roll 17, and the support roll device 15 has two support rolls 19 and 20, and each support roll 19 and 20. Bearings 21 and 22 supporting both ends of each are provided.
【００１５】鋼ストリップ１３は、溶融金属浴１１中で
シンクロール装置１４により方向を変えられ、サポート
ロール装置１５により面ブレを抑制して動きを安定化さ
れ、５０〜１００ｍ／分のスピードで走行する。そして
溶融金属浴１１から引き出された鋼ストリップ１３の部
分はワイピングノズル１８より吹き出す高速ガスが吹き
付けられ、そのガス圧力、吹き付け角度の調整によって
鋼ストリップ１３に施されるメッキ厚が調整される。The steel strip 13 is changed in direction in the molten metal bath 11 by the sink roll device 14 and stabilized by the support roll device 15 to suppress the surface wobbling, and runs at a speed of 50 to 100 m / min. To do. Then, the portion of the steel strip 13 pulled out from the molten metal bath 11 is blown with a high-speed gas blown out from the wiping nozzle 18, and the thickness of plating applied to the steel strip 13 is adjusted by adjusting the gas pressure and the blowing angle.
【００１６】溶融金属浴１１中で互いに面接触して摺動
するシンクロール１７と軸受１８、サポートロール１９
と軸受２１、およびサポートロール２０と軸受２２それ
ぞれからなる各摺動構造物は、溶融金属１１により潤滑
されるので、すべり軸受構造となっている。A sink roll 17, a bearing 18, and a support roll 19 which are in surface contact with each other and slide in the molten metal bath 11.
Since each sliding structure including the bearing 21, the bearing 21, and the support roll 20 and the bearing 22 is lubricated by the molten metal 11, it has a sliding bearing structure.
【００１７】図２は図１に示す連続溶融金属メッキ装置
に用いられるすべり軸受構造の各摺動構造物の断面図で
ある。この摺動構造物は、軸摺動部とそれを受ける軸受
とからなり、軸摺動部材としてサイアロン焼結体からな
りロール軸４の各端部軸に嵌め合い固定されたサイアロ
ンスリーブ２が、そして軸受摺動部材としてはホウ化モ
リブデンとニッケルとの混合焼結体からなりホルダー１
に形成された半円穴に倣う混合焼結体半円リング３が用
いられている。サイアロンは次式で表わされ、式中ｚは
０〜４.２の間で任意のものが可能であり、βサイアロ
ンと呼ばれるものである。FIG. 2 is a sectional view of each sliding structure of the sliding bearing structure used in the continuous molten metal plating apparatus shown in FIG. This sliding structure is composed of a shaft sliding portion and a bearing for receiving the shaft sliding portion, and a sialon sleeve 2 fitted and fixed to each end shaft of a roll shaft 4 made of a sialon sintered body as a shaft sliding member, The bearing sliding member is made of a mixed sintered body of molybdenum boride and nickel. The holder 1
The mixed-sintered semi-circular ring 3 that follows the semi-circular hole formed in the above is used. Sialon is represented by the following formula, where z can be any value between 0 and 4.2, and is called β sialon.
【００１８】[0018]
【化１】 [Chemical 1]
【００１９】本実施例では、サイアロンスリーブ２はｚ
＝０.５のサイアロンで作り、その硬度はＨｖ１５００
である。また混合焼結体半円リング３は約Ｈｖ１０００
となるようにホウ化モリブデンとニッケルの混合比を調
製したものである。In the present embodiment, the sialon sleeve 2 is z
= 0.5 sialon, the hardness is Hv1500
Is. The semi-circular ring 3 of the mixed sintered body is approximately Hv1000.
The mixing ratio of molybdenum boride and nickel was adjusted so that
【００２０】この摺動構造物を用いて、４６０℃の溶融
亜鉛浴中で摺動試験を行った。押付面圧５０ kgf/cm2以
上、すべり速度１０〜１００ m/minの条件で試験した結
果は、摩耗速度１０μm／日以下、摩擦係数０.１５以下
であり、この摺動構造物の耐摩耗性は優れており、円滑
な回転が得られた。Using this sliding structure, a sliding test was conducted in a molten zinc bath at 460 ° C. The results of tests under the conditions of pressing surface pressure of 50 kgf / cm 2 or more and sliding speed of 10 to 100 m / min show that the wear rate is 10 μm / day or less and the friction coefficient is 0.15 or less. It was excellent in smoothness and smooth rotation was obtained.
【００２１】〔実施例２〕図３は、別の摺動構造物の断
面図である。この別の摺動構造物では、軸受に実施例１
における混合焼結体半円リング３に代わって、周方向に
間隔をあけて混合焼結体セグメント５が配置され、セグ
メント５それぞれがホルダー１の半円穴部に設けられた
アリ溝に嵌め込み固定されている。この混合焼結体セグ
メント５は、実施例１のものと同様にホウ化モリブデン
とニッケルの混合焼結体からなる。また、サイアロンス
リーブ２は実施例１のものと同様である。実施例１と同
様な摺動実験を行った結果、実施例１と同様な優れた摺
動特性を得ることができた。[Embodiment 2] FIG. 3 is a sectional view of another sliding structure. In this other sliding structure, the bearing is used in the first embodiment.
In place of the mixed sintered body semicircular ring 3 in, mixed sintered body segments 5 are arranged at intervals in the circumferential direction, and each segment 5 is fitted and fixed in a dovetail groove provided in the semicircular hole portion of the holder 1. Has been done. This mixed sintered body segment 5 is made of a mixed sintered body of molybdenum boride and nickel as in the first embodiment. The sialon sleeve 2 is similar to that of the first embodiment. As a result of conducting a sliding test similar to that of Example 1, excellent sliding characteristics similar to those of Example 1 could be obtained.
【００２２】〔実施例３〕図４はまた別の摺動構造物の
断面図である。この摺動構造物では、軸摺動部材として
ホウ化モリブデンとニッケルの混合焼結体からなる混合
焼結体スリーブ６を用い、軸受摺動部材としてサイアロ
ンからなるサイアロンセグメント７を用いている。ここ
で用いた混合焼結体及びサイアロンの組成はそれぞれ実
施例１と同様である。この摺動構造物について、実施例
１と同様な摺動実験を行った結果、実施例１と同様な優
れた摺動特性を得ることができた。[Third Embodiment] FIG. 4 is a sectional view of another sliding structure. In this sliding structure, a mixed sintered body sleeve 6 made of a mixed sintered body of molybdenum boride and nickel is used as a shaft sliding member, and a sialon segment 7 made of sialon is used as a bearing sliding member. The compositions of the mixed sintered body and the sialon used here are the same as in Example 1, respectively. As a result of performing a sliding experiment similar to that of Example 1 on this sliding structure, excellent sliding characteristics similar to those of Example 1 were obtained.
【００２３】[0023]
【発明の効果】本発明によれば、連続溶融金属メッキ装
置を、メッキ材なる溶融金属中で耐食性、耐摩耗性に優
れたセラミックス焼結体と、耐食性、耐摩耗性、潤滑特
性に優れた金属とのホウ化からなる焼結体とを組み合せ
た摺動構造物を備えるものとしたので、溶融金属メッキ
浴中での摺動構造物の摩耗が少く長寿命を示し、従来の
炭化物サーメット製軸受の１０倍以上の長時間運転が可
能となり、軸受の組替え頻度の減少、生産性向上の効果
がある。さらに、本発明による摺動構造物は溶融金属中
で潤滑性に優れるため、ロールの円滑な回転が得られ、
ロールの回転ムラがなくなりメッキ付着量のバラツキメ
ッキむらを防止することができ品質向上、不良低減効果
がある。また、従来、早期摩耗に因する摺動構造物の嵌
め合いガタのために駆動が必要であったサポートロール
の非駆動化も可能となり、操業性、品質向上効果をさら
に高めることができる。According to the present invention, a continuous molten metal plating apparatus is provided with a ceramic sintered body having excellent corrosion resistance and wear resistance in a molten metal as a plating material, and excellent corrosion resistance, wear resistance, and lubricating characteristics. Since it has a sliding structure that combines a sintered body composed of a boride with a metal, it shows little wear of the sliding structure in the molten metal plating bath and has a long service life. The operation can be performed for a long time, which is 10 times longer than that of the bearing, and the effects of reducing the frequency of bearing replacement and improving productivity are obtained. Furthermore, since the sliding structure according to the present invention has excellent lubricity in the molten metal, smooth rotation of the roll can be obtained,
The unevenness of the rotation of the roll is eliminated, and the unevenness of the amount of plating applied can be prevented, which has the effect of improving quality and reducing defects. Further, it becomes possible to deactivate the support roll, which has conventionally been required to be driven due to the looseness of fitting of the sliding structure caused by early wear, and it is possible to further enhance the operability and quality improvement effect.
【図１】本発明にかかる連続溶融金属メッキ装置の構成
図である。FIG. 1 is a configuration diagram of a continuous molten metal plating apparatus according to the present invention.
【図２】本発明の実施例１の摺動構造物の断面図であ
る。FIG. 2 is a cross-sectional view of the sliding structure according to the first embodiment of the present invention.
【図３】本発明の実施例２の摺動構造物の断面図であ
る。FIG. 3 is a sectional view of a sliding structure according to a second embodiment of the present invention.
【図４】本発明の実施例３の摺動構造物の断面図であ
る。FIG. 4 is a sectional view of a sliding structure of Example 3 of the present invention.
１ ホルダ ２ サイアロンスリーブ ３ 混合焼結体半円リング ４ ロール軸 ５ 混合焼結体セグメント ６ 混合焼結体スリーブ ７ サイアロンセグメント １１ メッキ用溶融金属浴 １２ メッキ槽 １３ 鋼ストリップ、 １７ シンクロール １８ 軸受 １９，２０ サポートロール ２１，２２ 軸受 1 Holder 2 Sialon Sleeve 3 Semi-Circular Ring of Mixed Sintered Body 4 Roll Shaft 5 Mixed Sintered Body Segment 6 Mixed Sintered Body Sleeve 7 Sialon Segment 11 Molten Metal Bath for Plating 12 Plating Bath 13 Steel Strip, 17 Sink Roll 18 Bearing 19 , 20 Support rolls 21, 22 Bearings
───────────────────────────────────────────────────── フロントページの続き (72)発明者 酒井 淳次 茨城県日立市大みか町七丁目１番１号 株 式会社日立製作所日立研究所内 (72)発明者 大越 斉 茨城県日立市幸町三丁目１番１号 株式会 社日立製作所日立工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junji Sakai 7-1, 1-1 Omika-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Hitachi Research Laboratory (72) Inventor Hitoshi Ogoshi 3-chome, Saiwai-cho, Hitachi-shi, Ibaraki No. 1 No. 1 Stock Company Hitachi Ltd. Hitachi factory
Claims (8)
するべく金属溶湯中で回転するロールと該ロールを支持
する軸受とを備えた連続溶融金属メッキ装置において、
前記ロールの軸摺動面および前記軸受の摺動面のいずれ
か一方が炭化物、窒化物、酸化物より選ばれたセラミッ
クス焼結体から構成され、他方が金属とのホウ化物から
なる焼結体から構成されたことを特徴とする連続溶融金
属メッキ装置。1. A continuous molten metal plating apparatus comprising a roll rotating in a molten metal to guide a continuously supplied material to be plated, and a bearing supporting the roll,
One of the sliding surface of the shaft of the roll and the sliding surface of the bearing is made of a ceramic sintered body selected from carbide, nitride and oxide, and the other is made of a boride with a metal. A continuous hot-dip metal plating apparatus, which is characterized by comprising:
するべく金属溶湯中で回転するロールと該ロールを支持
する軸受とを備えた連続溶融金属メッキ装置において、
前記ロールの軸摺動面および前記軸受の摺動面のいずれ
か一方がセラミックス焼結体から構成され、他方がホウ
化モリブデンとニッケルとからなる混合焼結体から構成
されたことを特徴とする連続溶融金属メッキ装置。2. A continuous molten metal plating apparatus comprising a roll rotating in a molten metal to guide a continuously supplied material to be plated, and a bearing supporting the roll,
One of the shaft sliding surface of the roll and the sliding surface of the bearing is made of a ceramic sintered body, and the other is made of a mixed sintered body of molybdenum boride and nickel. Continuous molten metal plating equipment.
窒化ケイ素、炭化ケイ素、ジルコニア、窒化ボロン、窒
化アルミニウムのいずれかからなることを特徴とする請
求項２記載の連続溶融金属メッキ装置。3. The ceramic sintered body is sialon,
The continuous hot-dip metal plating apparatus according to claim 2, which is made of any one of silicon nitride, silicon carbide, zirconia, boron nitride, and aluminum nitride.
７００で、前記セラミックス焼結体より低い硬度を有す
ることを特徴とする請求項２記載の連続溶融金属メッキ
装置。4. The hardness of the mixed sintered body is Hv1400 to Hv1400.
The continuous hot-dip metal plating apparatus according to claim 2, which has a hardness of 700, which is lower than that of the ceramics sintered body.
するべく金属溶湯中で回転するロールと該ロールを支持
する軸受との摺動面を形成する摺動構造物において、前
記摺動面を形成する前記ロールの軸摺動面および前記軸
受の摺動面のいずれか一方が炭化物、窒化物、酸化物よ
り選ばれたセラミックス焼結体から構成され、他方が金
属とのホウ化物からなる焼結体から構成されたことを特
徴とする摺動構造物。5. A sliding structure for forming a sliding surface between a roll rotating in a molten metal for guiding a material to be continuously supplied and a bearing supporting the roll, wherein the sliding surface One of the shaft sliding surface of the roll and the sliding surface of the bearing forming a roller is composed of a ceramic sintered body selected from carbide, nitride and oxide, and the other is composed of a boride with a metal. A sliding structure comprising a sintered body.
するべく金属溶湯中で回転するロールと該ロールを支持
する軸受との摺動面を形成する摺動構造物において、前
記摺動面を形成する前記ロールの軸摺動面および前記軸
受の摺動面のいずれか一方がセラミックス焼結体から構
成され、他方がホウ化モリブデンとニッケルとからなる
混合焼結体から構成されたことを特徴とする摺動構造
物。6. A sliding structure for forming a sliding surface between a roll rotating in a molten metal to guide a material to be continuously supplied and a bearing supporting the roll, wherein the sliding surface Either one of the shaft sliding surface of the roll and the sliding surface of the bearing forming the roller is composed of a ceramic sintered body, and the other is composed of a mixed sintered body composed of molybdenum boride and nickel. Characteristic sliding structure.
窒化ケイ素、炭化ケイ素、ジルコニア、窒化ボロン、窒
化アルミニウムのいずれかでなることを特徴とする請求
項６記載の摺動構造物。7. The ceramic sintered body is sialon,
7. The sliding structure according to claim 6, which is made of any one of silicon nitride, silicon carbide, zirconia, boron nitride, and aluminum nitride.
７００で、前記セラミックス焼結体より低い硬度を有す
ることを特徴とする請求項６記載の摺動構造物。8. The hardness of the mixed sintered body is Hv1400 to Hv1400.
7. The sliding structure according to claim 6, wherein the sliding structure has a hardness of 700, which is lower than that of the ceramic sintered body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5288899A JPH07138721A (en) | 1993-11-18 | 1993-11-18 | Continuous molten metal plating apparatus and sliding structure used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5288899A JPH07138721A (en) | 1993-11-18 | 1993-11-18 | Continuous molten metal plating apparatus and sliding structure used therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07138721A true JPH07138721A (en) | 1995-05-30 |
Family
ID=17736231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5288899A Pending JPH07138721A (en) | 1993-11-18 | 1993-11-18 | Continuous molten metal plating apparatus and sliding structure used therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07138721A (en) |
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| JP2002206155A (en) * | 2001-01-09 | 2002-07-26 | Nippon Steel Corp | Immersion member for molten metal plating bath and manufacturing method |
| JP2002241915A (en) * | 2001-02-20 | 2002-08-28 | Hitachi Metals Ltd | Bearing unit in molten metal bath |
| JP2002294419A (en) * | 2001-04-02 | 2002-10-09 | Hitachi Metals Ltd | Roller bearing used in continuous hot-dip metal plating bath |
| KR20030052905A (en) * | 2001-12-21 | 2003-06-27 | 재단법인 포항산업과학연구원 | Journal bearing of sink roll and stabilizing roll for melted metal plating |
| KR100568340B1 (en) * | 2001-08-24 | 2006-04-05 | 주식회사 포스코 | Journal Bearing for Dipping Roll of Molten Metal Plating Equipment |
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| JP2008020044A (en) * | 2006-07-14 | 2008-01-31 | Tlv Co Ltd | Force feeding device of liquid |
| KR100806594B1 (en) * | 2001-12-17 | 2008-02-28 | 주식회사 포스코 | Dross-resistant Stabilizing Roll in Molten Zinc Bath |
| JP2009068634A (en) * | 2007-09-14 | 2009-04-02 | Tlv Co Ltd | Liquid pumping device |
| JP2010150664A (en) * | 2010-01-18 | 2010-07-08 | Nippon Steel Corp | Immersion member for hot-dip metal plating bath |
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1993
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| JP2002206155A (en) * | 2001-01-09 | 2002-07-26 | Nippon Steel Corp | Immersion member for molten metal plating bath and manufacturing method |
| JP2002241915A (en) * | 2001-02-20 | 2002-08-28 | Hitachi Metals Ltd | Bearing unit in molten metal bath |
| JP4725759B2 (en) * | 2001-02-20 | 2011-07-13 | 日立金属株式会社 | Bearing device in molten metal bath |
| JP2002294419A (en) * | 2001-04-02 | 2002-10-09 | Hitachi Metals Ltd | Roller bearing used in continuous hot-dip metal plating bath |
| JP4678565B2 (en) * | 2001-04-02 | 2011-04-27 | 日立金属株式会社 | Roller bearing in continuous molten metal plating bath |
| KR100568340B1 (en) * | 2001-08-24 | 2006-04-05 | 주식회사 포스코 | Journal Bearing for Dipping Roll of Molten Metal Plating Equipment |
| KR100806594B1 (en) * | 2001-12-17 | 2008-02-28 | 주식회사 포스코 | Dross-resistant Stabilizing Roll in Molten Zinc Bath |
| KR20030052905A (en) * | 2001-12-21 | 2003-06-27 | 재단법인 포항산업과학연구원 | Journal bearing of sink roll and stabilizing roll for melted metal plating |
| KR100687449B1 (en) * | 2005-08-26 | 2007-02-27 | 윤상보 | Sinking roll and auxiliary roll rotating guide device of steel plate galvanizing bath |
| JP2008020044A (en) * | 2006-07-14 | 2008-01-31 | Tlv Co Ltd | Force feeding device of liquid |
| JP2008020043A (en) * | 2006-07-14 | 2008-01-31 | Tlv Co Ltd | Force feeding device of liquid |
| JP2009068634A (en) * | 2007-09-14 | 2009-04-02 | Tlv Co Ltd | Liquid pumping device |
| JP2010150664A (en) * | 2010-01-18 | 2010-07-08 | Nippon Steel Corp | Immersion member for hot-dip metal plating bath |
| WO2012165540A1 (en) * | 2011-05-31 | 2012-12-06 | 日立金属株式会社 | Sliding member for slide bearing device |
| JP5664777B2 (en) * | 2011-05-31 | 2015-02-04 | 日立金属株式会社 | Sliding member for slide bearing device |
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