JP2000154033A - Production of conveying roll - Google Patents
Production of conveying rollInfo
- Publication number
- JP2000154033A JP2000154033A JP32378498A JP32378498A JP2000154033A JP 2000154033 A JP2000154033 A JP 2000154033A JP 32378498 A JP32378498 A JP 32378498A JP 32378498 A JP32378498 A JP 32378498A JP 2000154033 A JP2000154033 A JP 2000154033A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- fused silica
- coating layer
- manufacturing
- transport roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000005350 fused silica glass Substances 0.000 claims abstract description 19
- 239000011247 coating layer Substances 0.000 claims abstract description 12
- 238000005524 ceramic coating Methods 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 6
- 230000003746 surface roughness Effects 0.000 claims abstract description 4
- 238000007751 thermal spraying Methods 0.000 claims abstract description 4
- 238000005474 detonation Methods 0.000 claims abstract description 3
- 238000004880 explosion Methods 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims abstract description 3
- 239000006060 molten glass Substances 0.000 claims description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000227 grinding Methods 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 abstract description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 15
- 239000005357 flat glass Substances 0.000 description 12
- 239000011521 glass Substances 0.000 description 8
- 238000006124 Pilkington process Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000007507 annealing of glass Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
- C03B35/181—Materials, coatings, loose coverings or sleeves thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、搬送用ロールの製
造方法に係り、例えばフロート法により製造される溶融
板ガラスを溶融すず浴から引き上げるためのリフトアウ
トロールや、溶融板ガラスを徐冷窯に搬送するための搬
送ロール等に適用可能な搬送用ロールの製造方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a transfer roll, for example, a lift-out roll for pulling a molten sheet glass produced by a float method from a molten tin bath, and a method for transferring a molten sheet glass to an annealing furnace. The present invention relates to a method for manufacturing a transfer roll applicable to a transfer roll or the like for performing the transfer.
【０００２】[0002]
【従来の技術】従来、フロート法により製造される溶融
板ガラスを溶融すず浴から引き上げるためのリフトアウ
トロールや、溶融板ガラスを徐冷窯に搬送するためのレ
アーロール等に適用可能な搬送用ロールとしては、 （１）Ｃｒ−Ｎｉ鋼等の合金鋼製ロールの表面にＣＯ系
合金等からなる耐熱合金を溶射被覆した搬送用ロール
（特開平4-260629号公報，特開平8-175828号公報参照：
従来例１） （２）Ｃｒ−Ｎｉ鋼等の合金鋼製ロールの表面にアスベ
スト系材料を被覆した搬送用ロール（従来例２） （３）Ｃｒ−Ｎｉ鋼等の合金鋼製ロールの表面に酸化物
セラミックスを溶射被覆した搬送用ロール（特開平4-26
0622号公報，特開平4-260623号公報：従来例３） 等が考案され、使用されている。2. Description of the Related Art Conventionally, as a transport roll applicable to a lift-out roll for pulling a molten glass sheet manufactured by a float process from a molten tin bath, a layer roll for transporting a molten glass sheet to a slow cooling kiln, and the like. (1) A transfer roll in which a heat-resistant alloy made of a CO-based alloy or the like is spray-coated on the surface of a roll made of an alloy steel such as a Cr-Ni steel (see JP-A-4-260629 and JP-A-8-175828:
Conventional example 1) (2) Transport roll in which asbestos material is coated on the surface of an alloy steel roll such as Cr-Ni steel (Conventional example 2) (3) On the surface of an alloy steel roll such as Cr-Ni steel Transport rolls coated with oxide ceramics by spray coating
No. 0622, Japanese Patent Application Laid-Open No. H4-260623: Conventional Example 3) and the like have been devised and used.
【０００３】しかし、これらの従来例１ないし従来例３
は、いずれも溶融板ガラスの搬送用ロールとして満足な
性能を供給するに至っていない。例えば、従来例１は、
高温環境での機械的強度およびロール体としての形状精
度維持に効果が認められるものの、溶融すず浴から溶融
板ガラスの下面に付着して持ち出される溶融すず成分が
ガラス板の徐冷中、雰囲気中に存在する酸素によって酸
化され、硬質の異物となってロール表面にしばしば固着
する。この固着物は、一般にビルドアップとも呼ばれ、
ロール表面に多数、点状に付着した突起物として存在す
るようになり、ロール上を通過するガラス製品の表面き
ずを発生させる原因になっている。また、従来例２は、
700℃近傍での強度劣化，アスベスト自体の環境問題等
の改善課題がある。However, these conventional examples 1 to 3
Have not yet been able to supply satisfactory performance as a roll for transferring molten sheet glass. For example, in Conventional Example 1,
Although effective in maintaining the mechanical strength in a high-temperature environment and maintaining the shape accuracy as a roll body, the molten tin component adhered to the lower surface of the molten glass from the molten tin bath and brought out exists in the atmosphere during the slow cooling of the glass sheet. Oxidized by oxygen, it becomes a hard foreign substance and often adheres to the roll surface. This sticking matter is generally called build-up,
A large number of protrusions adhere to the roll surface in a point-like manner, which causes a surface flaw of a glass product passing on the roll. Conventional example 2
There are improvement issues such as strength deterioration near 700 ° C and environmental problems of asbestos itself.
【０００４】そして、従来例３は、前述した溶融すず成
分が酸化物となって固着する問題防止に効果を発揮する
ものの、基材金属ロールの熱伝導率が大きいため、溶融
板ガラスが過度の冷却遍歴を受け、しばしばガラス品質
に悪影響を与えることがある。さらに、従来例３は、被
覆層であるセラミックス材の熱膨張係数が基材金属の熱
膨張係数に比較して小さいため、ロールを交換する時等
に急速なロール表面の温度変化が生じた場合、耐スポー
リング性（耐剥離性）が低下したり、微細な亀裂が発生
する等して耐用寿命の著しい低下を招いている。In prior art example 3, although the molten tin component is effective in preventing the problem that the molten tin component becomes an oxide and adheres, the heat conductivity of the base metal roll is large, so that the molten sheet glass is excessively cooled. Itinerant and often can adversely affect glass quality. Further, in the conventional example 3, since the thermal expansion coefficient of the ceramic material as the coating layer is smaller than the thermal expansion coefficient of the base metal, when the temperature of the roll surface rapidly changes when the roll is changed, etc. In addition, the spalling resistance (peeling resistance) is reduced, and minute cracks are generated, thereby causing a significant reduction in the service life.
【０００５】[0005]
【発明が解決しようとする課題】さらに、近年、胴部を
溶融シリカ基材とし、これに金属製軸を装着した搬送用
ロールが実用化されはじめた。この搬送用ロールは、高
温環境下における機械的特性に効果が認められている。
しかしながら、このような搬送用ロールは、表面の耐ビ
ルドアップ性に改善の余地が残されているとともに、表
面機能およびその使用ではいずれも溶融板ガラスの搬送
用ロールとして高品質ガラスの製造に供するための十分
な能力を発揮できない。本発明は、前述のような問題点
を解決するためになされたもので、表面特性に優れた搬
送用ロールの製造方法を得ることを目的とする。Further, in recent years, transport rolls having a body made of a fused silica base material and a metal shaft mounted thereon have begun to be put into practical use. This transport roll has been found to be effective in mechanical properties in a high-temperature environment.
However, such transport rolls have room for improvement in the build-up resistance of the surface, and both the surface function and its use are used as rolls for transporting molten sheet glass for production of high quality glass. Can not demonstrate enough ability. The present invention has been made to solve the above-described problems, and has as its object to provide a method for manufacturing a transport roll having excellent surface characteristics.
【０００６】[0006]
【課題を解決するための手段】前述した目的を達成する
ために、本発明の請求項１に係る搬送用ロールの製造方
法は、基材を溶融シリカにより構成し、かつ、その最外
層にセラミック被覆層を備えるものである。さらに、本
発明の請求項２に係る搬送用ロールの製造方法は、溶融
板ガラスを搬送するために用いられるものである。ま
た、本発明の請求項３に係る搬送用ロールの製造方法
は、前記セラミック被覆層を、Ａｌ2 Ｏ3 ，ＺｒＯ2 ，
Ｙ2 Ｏ3 ，ＴｉＯ2 ，ＭｇＯ，Ｃｒ2 Ｏ3 の群から選ん
だ少なくとも１種以上の成分で構成するものである。According to a first aspect of the present invention, there is provided a method for manufacturing a transport roll, comprising the steps of: forming a base material from fused silica; It has a coating layer. Further, the method for producing a transport roll according to claim 2 of the present invention is used for transporting a molten sheet glass. Also, in the method for manufacturing a transport roll according to claim 3 of the present invention, the ceramic coating layer may be formed of Al 2 O 3 , ZrO 2 ,
It is composed of at least one or more components selected from the group consisting of Y 2 O 3 , TiO 2 , MgO and Cr 2 O 3 .
【０００７】さらに、本発明の請求項４に係る搬送用ロ
ールの製造方法は、前記セラミック被覆層を、プラズマ
炎，ガス炎，爆発炎（デトネーション法）を用いた溶射
により形成するものである。また、本発明の請求項５に
係る搬送用ロールの製造方法は、所定の研削材により前
記基材の表面粗さが２μｍRaないし10μｍRaとなるよう
に粗面化させた後、前記セラミック被覆層を形成するも
のである。そして、本発明の請求項６に係る搬送用ロー
ルの製造方法は、前記基材として溶融シリカ粒子の焼結
材を用いるものである。Further, in a method of manufacturing a transport roll according to a fourth aspect of the present invention, the ceramic coating layer is formed by thermal spraying using a plasma flame, a gas flame, or an explosion flame (detonation method). Further, in the method for manufacturing a transport roll according to claim 5 of the present invention, after the surface of the base material is roughened with a predetermined abrasive so as to have a surface roughness of 2 μmRa to 10 μmRa, the ceramic coating layer is formed. To form. The method for manufacturing a transport roll according to claim 6 of the present invention uses a sintered material of fused silica particles as the base material.
【０００８】[0008]
【発明の実施の形態】以下、本発明に係る実施形態を説
明する。板ガラスをフロートガラスプロセス（Float gl
ass process ）により製造する場合、溶融板ガラスを溶
融すず浴から引き上げる部分およびガラス徐冷窯内に配
置されているリフトアウトロール，レアーロールに代表
される溶融板ガラスの搬送用ロールには次の機能が要求
されている。すなわち、 溶融すず，すず酸化物と反応しにくいこと ロール表面に溶融すず，すず酸化物等のビルドアップ，
固着が少ないこと ロール自体の真円度，円筒度等の形状精度の低下が少な
いこと ガラス品質を低下させないこと 等である。Embodiments of the present invention will be described below. Float glass process (Float gl)
In the case of manufacturing by ass process, the following functions are required for the part that pulls the molten sheet glass out of the tin bath and the rolls for transporting the molten sheet glass represented by lift-out rolls and layer rolls placed in the glass annealing furnace. Have been. That is, it is difficult to react with molten tin and tin oxide. Build-up of molten tin and tin oxide on the roll surface,
There is little sticking. There is little decrease in shape accuracy such as roundness and cylindricity of the roll itself.
【０００９】溶融すずの固着を議論するとき、ロールの
表面に対する接触角とともに表面粗さ等の微視的形態が
重要である。各種セラミックス用溶射皮膜と溶融シリカ
材表面を対象に溶融すずの滴下，凝固付着，機械的強制
除去，再滴下を繰り返して実行し、すず材の除去難易性
および付着面の表面形態の変化を詳細に調べた。表１
は、この結果を示したものである。When discussing the adhesion of molten tin, the microscopic form such as the surface roughness as well as the contact angle with the roll surface is important. Repeated dropping of molten tin, solidification and adhesion, mechanical forcible removal, and re-dropping are repeatedly performed on the sprayed coating for various ceramics and the surface of the fused silica material. Examined. Table 1
Shows this result.
【００１０】[0010]
【表１】 [Table 1]
【００１１】この表１によれば、繰り返し数が小さいう
ちは、セラミックス溶射皮膜と溶融シリカ材の表面形態
の差異はほとんど認められないが、繰り返し数の増加と
ともに付着固着の頻度が増加するとともに、固着面の表
面形態が変化している。顕微鏡による詳細観察がこれを
裏付けている。According to Table 1, while the number of repetitions is small, there is almost no difference in the surface morphology between the ceramic sprayed coating and the fused silica material. However, as the number of repetitions increases, the frequency of adhesion and fixation increases. The surface morphology of the fixing surface has changed. Microscopic observations confirm this.
【００１２】プラズマ溶射皮膜の微小硬さはＡｌ
2 Ｏ3 ，ＺｒＯ2 でそれぞれ HV800， HV700である。ま
た、溶融シリカ材は、シリカ粒と結合相の２相からなっ
ており、微小硬さはそれぞれ HV500， HV250である。こ
れらの微小硬さの差異が付着すず材外力によって剥離，
離脱するときに、ロール表面の微視的物理的粗面化を促
進させ、新たな溶融すずの付着および固着の要因になっ
たものと考えられる。The micro hardness of the plasma sprayed coating is Al
HV800 and HV700 for 2 O 3 and ZrO 2 respectively. The fused silica material consists of two phases, silica particles and a binder phase, and has a microhardness of HV500 and HV250, respectively. The difference between these microhardnesses is caused by the external force of the tin material,
It is considered that the micro-physical roughening of the roll surface was promoted when the roll was detached, which caused the adhesion and fixation of new molten tin.
【００１３】本発明の溶融シリカ材は、熱伝導率が極め
て小さく。室温から1000℃までの温度範囲でおよそ0.6W
/(mK) にすぎない。すず浴からリフトアウトロールによ
り引き上げられた直後の板ガラスが受ける冷却速度は、
ガラスの品質決定に極めて重要な影響をおよぼす。すな
わち、液相状態から固相線温度を通過した溶融ガラスは
表面から凝固を始めるが、そのときの冷却速度がガラス
の品質を決定するものであることがよく知られている。The fused silica material of the present invention has a very low thermal conductivity. Approximately 0.6W from room temperature to 1000 ℃
/ (mK). The cooling rate received by the sheet glass immediately after being lifted from the tin bath by the lift-out roll is
It has a very important influence on glass quality determination. That is, it is well known that the molten glass that has passed the solidus temperature from the liquid state begins to solidify from the surface, and the cooling rate at that time determines the quality of the glass.
【００１４】これまで溶融シリカ基材が実用されていき
たのは、この優れた板ガラスに与える熱伝導特性による
ものである。セラミックス溶射皮膜は皮膜材料自体が小
さい熱伝導特性を示すことに加えて、粒界を有し、この
粒界には皮膜が曝露される雰囲気、すなわち気相が介在
する。本発明が適用される分野では、ごく微量の酸素を
含む窒素雰囲気であり、熱伝導係数も十分小さい。従っ
て、溶融シリカ基材表面に被覆している溶融シリカ本来
の小さな熱伝導特性を何ら損なうものではない。The fact that fused silica substrates have been put to practical use has been attributed to the heat conduction properties imparted to the excellent sheet glass. The ceramic sprayed coating has, in addition to the coating material itself exhibiting small thermal conductivity, a grain boundary, and an atmosphere to which the coating is exposed, that is, a gas phase, is present at the grain boundary. In the field to which the present invention is applied, a nitrogen atmosphere containing a very small amount of oxygen is used, and the heat conduction coefficient is sufficiently small. Therefore, the small thermal conductivity characteristic of the fused silica coated on the fused silica substrate surface is not impaired at all.
【００１５】[0015]
【実施例】板ガラス搬送用溶射皮膜を最外層に設けた溶
融板ガラスの搬送用ロールの製造方法の実施形態を示
す。直径 192mm，面長3718mmの溶融シリカ製ロールを準
備した。ロール外径は板ガラス搬送速度制御上、基準値
が設定されているので溶射皮膜層に見合う量を下削りす
るための円筒研削盤を用いて研削した。溶融シリカ材は
気孔を有しているので、湿式研削時に研削クーラントが
基材内に浸透していることが懸念される。このため加熱
処理を行った。加熱は大気中電気炉で 200℃，２時間と
した。溶射に先立つ前処理として被覆面の粗面化処理を
行った。EXAMPLE An embodiment of a method for manufacturing a roll for transporting a molten glass sheet provided with a thermal spray coating for transporting a glass sheet on the outermost layer will be described. A roll made of fused silica having a diameter of 192 mm and a surface length of 3718 mm was prepared. Since the roll outer diameter is set to a reference value for controlling the speed of transporting the glass sheet, it was ground using a cylindrical grinder for lowering an amount suitable for the sprayed coating layer. Since the fused silica material has pores, there is a concern that the grinding coolant permeates into the base material during wet grinding. Therefore, a heat treatment was performed. Heating was performed in an electric furnace in the air at 200 ° C for 2 hours. A roughening treatment of the coated surface was performed as a pretreatment prior to the thermal spraying.
【００１６】その後、プラズマ溶射装置を用いて、直径
192mm，面長3718mmの溶融シリカ製ロールにＺｒＯ2 −
８モル％Ｙ2 Ｏ3 材料を0.45mm〜0.55mm厚さに被覆し
た。被覆後、人造ダイヤモンド砥石を用いて円筒研削
し、被覆厚さ0.25mm±0.05mm，算術平均粗さRa≦３μｍ
に仕上げた。この他、同寸法の他のロールにＡｌ
2 Ｏ3 ，Ａｌ2 Ｏ3 −ＴｉＯ2 ，Ａｌ2 Ｏ3 −ＭｇＯ材
料等も同様に被覆した。このようにして製造したロール
をフロートガラスプロセスのリフトアウトロール，レア
ーロールとして供用したところ、いずれのロールも溶融
シリカ単独基材ロールに比べ、溶融すずおよびその酸化
物のビルドアップ低減とその結果としての板ガラス表面
品質の向上に効果が認められた。After that, the diameter is adjusted using a plasma spraying apparatus.
ZrO 2 − on a 192 mm, 3718 mm long fused silica roll
8 mol% Y 2 O 3 material was coated 0.45mm~0.55mm thickness. After coating, cylindrical grinding using artificial diamond whetstone, coating thickness 0.25mm ± 0.05mm, arithmetic mean roughness Ra ≦ 3μm
Finished. In addition, other rolls of the same size
2 O 3 , Al 2 O 3 —TiO 2 , Al 2 O 3 —MgO materials and the like were similarly coated. The rolls produced in this manner were used as lift-out rolls and layer rolls for the float glass process. An effect was observed in improving the surface quality of the sheet glass.
【００１７】なお、本発明は、溶融板ガラスを搬送する
ための搬送用ロールの製造方法に限定されず、高温搬送
物を搬送するために広く一般に用いられる搬送用ロール
に適用可能であり、その用途，用法を問わない。The present invention is not limited to a method for manufacturing a transport roll for transporting a molten glass sheet, but is applicable to a transport roll widely used for transporting a high-temperature transport object. , Regardless of usage.
【００１８】[0018]
【発明の効果】以上のように、溶融シリカ基材ロールの
表面にプラズマ溶射法等によりジルコニアイットリアあ
るいはアルミナ等のセラミック皮膜を被覆することによ
り、ロール表面の熱伝導挙動を低下させることなく、溶
融すずおよびその酸化物のロール表面へのビルドアップ
を低減させ、板ガラス表面品質の向上に寄与する搬送用
ロールの製造方法を得ることができる。As described above, by coating the surface of a fused silica substrate roll with a ceramic coating such as zirconia yttria or alumina by a plasma spray method or the like, the heat transfer behavior of the roll surface can be reduced without lowering the thermal conductivity. It is possible to obtain a method of manufacturing a transport roll that reduces buildup of tin and its oxide on the roll surface and contributes to improving the surface quality of the sheet glass.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 北秋 廣幸 兵庫県神戸市北区桂木１−８−12 (72)発明者 穴田 博 兵庫県加古川市野口町良野495−15 (72)発明者 相坂 弘行 兵庫県加古川市尾上町旭２−56−２ Ｆターム(参考） 3F033 GA06 GB06 GC08 HA01 4G015 GA00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Kitaaki 1-8-12 Katsuragi, Kita-ku, Kobe-shi, Hyogo (72) Inventor Hiroshi Anada 495-15, Yoshino, Noguchi-cho, Kakogawa-shi, Hyogo (72) Inventor Hiroyuki Aizaka 2-56-2 Asahi, Onoe-cho, Kakogawa-shi, Hyogo F-term (reference) 3F033 GA06 GB06 GC08 HA01 4G015 GA00
Claims (6)
その最外層にセラミック被覆層を備えることを特徴とす
る搬送用ロールの製造方法。1. A substrate comprising fused silica, and
A method for manufacturing a transport roll, comprising a ceramic coating layer as an outermost layer.
するために用いられるものであることを特徴とする請求
項１または請求項２に記載した搬送用ロールの製造方
法。2. The method of manufacturing a transport roll according to claim 1, wherein the transport roll is used for transporting a molten glass sheet.
ＺｒＯ2 ，Ｙ2 Ｏ3，ＴｉＯ2 ，ＭｇＯ，Ｃｒ2 Ｏ3 の
群から選んだ少なくとも１種以上の成分で構成すること
を特徴とする請求項１または請求項２に記載した搬送用
ロールの製造方法。3. The method according to claim 1, wherein the ceramic coating layer is made of Al 2 O 3 ,
ZrO 2, Y 2 O 3, TiO 2, MgO, of the transfer roll according to claim 1 or claim 2, characterized in that it constitutes at least one or more components selected from the group of Cr 2 O 3 Production method.
ガス炎，爆発炎（デトネーション法）を用いた溶射によ
り形成することを特徴とする請求項１または請求項２に
記載した搬送用ロールの製造方法。4. The method according to claim 1, wherein the ceramic coating layer is a plasma flame,
3. The method for manufacturing a transport roll according to claim 1, wherein the transfer roll is formed by thermal spraying using a gas flame or an explosion flame (detonation method).
が２μｍRaないし10μｍRaとなるように粗面化させた
後、前記セラミック被覆層を形成することを特徴とする
請求項１または請求項２に記載した搬送用ロールの製造
方法。5. The ceramic coating layer according to claim 1, wherein the surface of the base material is roughened with a predetermined abrasive so that the surface roughness is 2 μm Ra to 10 μm Ra. 2. The method for producing a transport roll according to item 2.
ることを特徴とする請求項１または請求項２に記載した
搬送用ロールの製造方法。6. The method for manufacturing a transport roll according to claim 1, wherein the base material is a sintered material of fused silica particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32378498A JP2000154033A (en) | 1998-11-13 | 1998-11-13 | Production of conveying roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32378498A JP2000154033A (en) | 1998-11-13 | 1998-11-13 | Production of conveying roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000154033A true JP2000154033A (en) | 2000-06-06 |
Family
ID=18158589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32378498A Pending JP2000154033A (en) | 1998-11-13 | 1998-11-13 | Production of conveying roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000154033A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100779490B1 (en) | 2006-08-10 | 2007-11-26 | 영남대학교 산학협력단 | The fabricating method of anatase phase titanium oxide layer |
| WO2009014028A1 (en) * | 2007-07-23 | 2009-01-29 | Asahi Glass Co., Ltd. | Float glass making process and float glass making equipment |
| US20120298476A1 (en) * | 2008-09-17 | 2012-11-29 | Nichias Corporation | Heat-resistant roll, production method thereof, and method of producing sheet glass using heat-resistant roll |
| US20230034744A1 (en) * | 2019-12-26 | 2023-02-02 | Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi | Method for fabricating multilayer ceramic structures by thermal spraying |
| CN116947467A (en) * | 2023-05-22 | 2023-10-27 | 江苏君航高新材料科技有限公司 | Sintering method of high-purity fused quartz ceramic roller |
-
1998
- 1998-11-13 JP JP32378498A patent/JP2000154033A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100779490B1 (en) | 2006-08-10 | 2007-11-26 | 영남대학교 산학협력단 | The fabricating method of anatase phase titanium oxide layer |
| WO2009014028A1 (en) * | 2007-07-23 | 2009-01-29 | Asahi Glass Co., Ltd. | Float glass making process and float glass making equipment |
| JP5428858B2 (en) * | 2007-07-23 | 2014-02-26 | 旭硝子株式会社 | Float glass manufacturing method and float glass manufacturing equipment |
| KR101455890B1 (en) * | 2007-07-23 | 2014-11-03 | 아사히 가라스 가부시키가이샤 | Float glass making process and float glass making equipment |
| US20120298476A1 (en) * | 2008-09-17 | 2012-11-29 | Nichias Corporation | Heat-resistant roll, production method thereof, and method of producing sheet glass using heat-resistant roll |
| US9604867B2 (en) * | 2008-09-17 | 2017-03-28 | Nichias Corporation | Heat-resistant roll, production method thereof, and method of producing sheet glass using heat-resistant roll |
| US20230034744A1 (en) * | 2019-12-26 | 2023-02-02 | Aselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi | Method for fabricating multilayer ceramic structures by thermal spraying |
| CN116947467A (en) * | 2023-05-22 | 2023-10-27 | 江苏君航高新材料科技有限公司 | Sintering method of high-purity fused quartz ceramic roller |
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