JP2001174165A - Roller with ring for transfer in furnace and method for manufacture thereof - Google Patents
Roller with ring for transfer in furnace and method for manufacture thereofInfo
- Publication number
- JP2001174165A JP2001174165A JP36151799A JP36151799A JP2001174165A JP 2001174165 A JP2001174165 A JP 2001174165A JP 36151799 A JP36151799 A JP 36151799A JP 36151799 A JP36151799 A JP 36151799A JP 2001174165 A JP2001174165 A JP 2001174165A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- ring
- shaped molded
- shaft
- 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.)
- Granted
Links
Landscapes
- Rolls And Other Rotary Bodies (AREA)
- Powder Metallurgy (AREA)
- Tunnel Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】 本発明は、ローラーハース
キルン等において、被加熱体の搬送に使用される炉内搬
送用ローラーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-furnace transfer roller used for transferring a heated object in a roller hearth kiln or the like.
【０００２】[0002]
【従来の技術】 ローラーハースキルン等の連続加熱炉
に使用される炉内搬送用ローラーとして、近年、優れた
耐摩耗性、耐熱性、軽量性等を有するセラミックス材料
からなるローラーが注目されている。この種のローラー
には高い形状精度が求められ、例えばガラス基板焼成用
の幅広なローラーハースキルンで使用される長さ２４０
０ｍｍ程度のローラーでは、図３に示すローラーの反り
量ａが０．５ｍｍ以内であることが好ましい。2. Description of the Related Art In recent years, a roller made of a ceramic material having excellent wear resistance, heat resistance, light weight, and the like has attracted attention as a roller for use in a continuous heating furnace such as a roller hearth kiln. . This type of roller is required to have high shape accuracy, for example, a length of 240 mm used in a wide roller hearth kiln for firing glass substrates.
For a roller having a diameter of about 0 mm, the amount of warpage a of the roller shown in FIG. 3 is preferably within 0.5 mm.
【０００３】 この反り量ａが大きいと、ローラーの
最大反り位置における周速が他の部位よりも速く、セッ
ターとの接触が点接触となるために、セッターとの摩擦
により発塵の原因となる、炉内の幅方向で回転の周速
が異なるために、被加熱体が蛇行する、搬送時に被加
熱体の上下動が起こり、その振動による衝撃が被加熱体
の損傷に繋がる、といった問題が生じる。If the amount of warpage a is large, the peripheral speed at the maximum warp position of the roller is faster than other parts, and the contact with the setter becomes a point contact, which causes dust due to friction with the setter. However, since the peripheral speed of rotation in the width direction in the furnace is different, the heated object meanders, and the heated object moves up and down at the time of transport, and the shock due to the vibration leads to damage to the heated object. Occurs.
【０００４】 一般に、セラミックス製の炉内搬送用ロ
ーラーは、押出成形により得られた中空の軸状成形体を
焼成して製造されるが、焼成終了時点でのローラーの反
り量ａは、既存の技術ではローラーの長さの０．１％程
度となる。すなわち、長さ２４００ｍｍのローラーで
は、前記の０．５ｍｍ以内という好適な範囲を大きく上
回る２．４ｍｍ程度の反りが生じ、従来、長尺のローラ
ーでは前述の〜のような問題を招いていた。In general, a ceramic transfer roller in a furnace is manufactured by firing a hollow shaft-shaped molded product obtained by extrusion, and the amount of warpage a of the roller at the end of firing is the same as that of an existing roller. In technology, it is about 0.1% of the length of the roller. That is, with a roller having a length of 2400 mm, warpage of about 2.4 mm, which greatly exceeds the preferable range of 0.5 mm or less, has conventionally caused the above-mentioned problems (1) to (4).
【０００５】[0005]
【発明が解決しようとする課題】 炉内搬送用ローラー
に使用されるような高硬度で緻密質のセラミック焼結体
は加工性が良くないため、反りの修正のためにローラー
表面の研磨加工を施すとなると、その加工量の多さから
加工費用が高くなり、まして強度を下げることになるた
め、研磨加工は不可能とされてきた。Problems to be Solved by the Invention Since high-hardness and dense ceramic sintered bodies such as those used in furnace transfer rollers have poor workability, the roller surface must be polished to correct warpage. When it is applied, the processing cost is increased due to the large amount of processing, and the strength is further reduced, so that the polishing processing has been considered impossible.
【０００６】 本発明は、このような従来の事情に鑑み
てなされたものであり、その目的とするところは、少な
い加工量で必要な形状精度が得られるようなセラミック
ス製の炉内搬送用ローラーとその製造方法を提供するこ
とにある。The present invention has been made in view of such conventional circumstances, and an object of the present invention is to provide a ceramic-made in-furnace transfer roller capable of obtaining a required shape accuracy with a small processing amount. And a method of manufacturing the same.
【０００７】[0007]
【課題を解決するための手段】 本発明によれば、炭化
珪素と珪素とを構成成分として含有するＳｉ−ＳｉＣ質
焼結体からなるローラー軸に、同材質からなる複数個の
リングが、所定の間隔をもって一体的に接合されている
ことを特徴とするリング付き炉内搬送用ローラー、が提
供される。According to the present invention, a plurality of rings made of the same material are provided on a roller shaft made of a Si—SiC sintered body containing silicon carbide and silicon as constituents. And a ring-attached in-furnace transport roller, which is integrally joined at intervals.
【０００８】 また、本発明によれば、炭化珪素粉末と
炭素粉末とを主要原料として調合された成形用原料を用
いて軸状成形体と複数個のリング状成形体とを別個に成
形し、得られた軸状成形体に複数個のリング状成形体を
挿通して所定の間隔で接着固定した後、これを金属珪素
が存在する減圧の不活性ガス雰囲気中又は真空中におい
て、金属珪素を含浸させながら焼成することによりリン
グ付きローラー焼結体を得、当該焼結体のリングの表面
を研磨加工することにより必要な形状精度を得ることを
特徴とするリング付き炉内搬送用ローラーの製造方法、
が提供される。Further, according to the present invention, a shaft-shaped molded body and a plurality of ring-shaped molded bodies are separately molded using a molding raw material prepared using silicon carbide powder and carbon powder as main raw materials, After inserting a plurality of ring-shaped molded bodies into the obtained shaft-shaped molded body and bonding and fixing them at predetermined intervals, in a reduced pressure inert gas atmosphere or vacuum where metallic silicon is present, metallic silicon is removed. A sintered roller with a ring is obtained by firing while being impregnated, and a required shape accuracy is obtained by polishing a surface of a ring of the sintered body to produce a roller for in-furnace transfer with a ring. Method,
Is provided.
【０００９】[0009]
【発明の実施の形態】 図１は本発明に係る炉内搬送用
ローラーの実施形態の一例を示す斜視図で、図２は図１
のＡ−Ａ断面図である。本発明の炉内搬送用ローラー１
は、炭化珪素と珪素とを構成成分として含有するＳｉ−
ＳｉＣ質焼結体からなるローラー軸３に、同材質からな
る複数個のリング５が、所定の間隔をもって一体的に接
合されてたものである。リング５は、ローラー１の回転
時に、その中心軸が、ローラー軸３の中心軸と同軸とな
るように、ローラー軸３への接合及び接合後の研磨加工
がなされている。FIG. 1 is a perspective view showing an example of an embodiment of a furnace transfer roller according to the present invention, and FIG.
It is AA sectional drawing of. In-furnace transfer roller 1 of the present invention
Is Si- containing silicon carbide and silicon as constituent components.
A plurality of rings 5 made of the same material are integrally joined at predetermined intervals to a roller shaft 3 made of a SiC sintered body. The ring 5 is joined to the roller shaft 3 and polished after joining such that the center axis of the ring 5 is coaxial with the center axis of the roller shaft 3 when the roller 1 rotates.
【００１０】 このリング付き炉内搬送用ローラー１
は、その使用時において、リング５の表面のみが被加熱
体を載置するセッターに接触した状態で回転し、被加熱
体及びセッターの搬送を行う。このため、ローラーの製
造工程において、焼成終了時点での反りを修正しようと
する場合には、その修正のための研磨加工を、セッター
と接触するリング５の表面だけに施せばよく、少ない加
工量で必要な形状精度を得ることができる。[0010] The in-furnace transfer roller 1 with the ring
During use, the device rotates while only the surface of the ring 5 is in contact with the setter on which the object to be heated is placed, and conveys the object to be heated and the setter. For this reason, in the roller manufacturing process, when the warpage at the end of firing is to be corrected, polishing for the correction may be performed only on the surface of the ring 5 that comes into contact with the setter, and the amount of processing is small. Thus, the required shape accuracy can be obtained.
【００１１】 なお、このようなリングを配した炉内搬
送用ローラーの構成としては、本発明のような一体構造
の物の他、別体のローラー軸とリングとを嵌合した構造
の物も考えられるが、その場合は、必要な形状精度を確
保するにあたって、前記の様な形状加工の加工精度の他
に、ローラー軸とリングとの嵌め合い精度、リングのズ
レや緩み、熱膨張などもについても考慮する必要があ
る。これに対し、本発明のローラーは、ローラー軸３と
リング５が一体化しているので、必要な形状精度を確保
するにあたって、加工精度以外の問題を考慮する必要が
ない。In addition, as a configuration of the in-furnace transfer roller provided with such a ring, in addition to an integrated structure as in the present invention, there is also a structure in which a separate roller shaft and a ring are fitted. However, in that case, in order to secure the necessary shape accuracy, in addition to the processing accuracy of the above-described shape processing, the fitting accuracy of the roller shaft and the ring, the displacement and looseness of the ring, the thermal expansion, etc. Also need to be considered. On the other hand, in the roller of the present invention, since the roller shaft 3 and the ring 5 are integrated, it is not necessary to consider a problem other than processing accuracy in securing required shape accuracy.
【００１２】 本発明のローラーを形成するＳｉ−Ｓｉ
Ｃ質焼結体は、炭化珪素質材料を基礎材質とし、その気
孔に金属珪素が浸透・含浸した材料であり、その組成と
して炭化珪素と炭素を含むものである。具体的には、５
０〜９９．５重量％の炭化珪素と０．５〜５０重量％の
珪素とを含有するものが強度、耐熱衝撃性等の点から好
ましい。Si—Si forming the roller of the present invention
The C-based sintered body is a material in which silicon carbide is used as a base material, metal silicon is infiltrated and impregnated into pores, and contains silicon carbide and carbon as its composition. Specifically, 5
Those containing 0 to 99.5% by weight of silicon carbide and 0.5 to 50% by weight of silicon are preferable in terms of strength, thermal shock resistance and the like.
【００１３】 Ｓｉ−ＳｉＣ質焼結体は、炭化珪素粉末
と炭素粉末とを主成分とする成形用原料を用いて作製さ
れた成形体を、金属珪素を含浸させながら焼成すること
で得られるが、この含浸された金属珪素は接合材的な作
用を持つので、別々に成形したローラー軸とリングとを
組み合わせて前記のような焼成を行うと、金属珪素の作
用で両者が強固に一体化する。また、Ｓｉ−ＳｉＣ質焼
結体は、その形成過程において、ローラー軸とリングと
の一体化に好適に作用するだけでなく、強度や耐酸化性
等に優れ、炉内搬送用ローラーの材質として非常に適し
たものである。[0013] The Si-SiC sintered body can be obtained by sintering a compact formed using a forming material containing silicon carbide powder and carbon powder as main components while impregnating with metal silicon. Since the impregnated metallic silicon has a function as a bonding material, when the above-described firing is performed by combining a separately formed roller shaft and a ring, the two are firmly integrated by the function of the metallic silicon. . In addition, the Si-SiC-based sintered body not only suitably acts on the integration of the roller shaft and the ring in the forming process, but also has excellent strength and oxidation resistance, and is used as a material for the in-furnace transfer roller. Very suitable.
【００１４】 次に、本発明のローラーの製造方法につ
いて説明する。図４は、本発明に係るローラーの製造方
法の一例を示すフロー図である。前記のようなローラー
の製造にあたっては、まず、炭化珪素粉末と炭素粉末と
を主要原料として、成形用原料の調合を行う。すなわ
ち、所定量の炭化珪素粉末と炭素粉末とを混合し、この
混合粉末に対して、フェノールやメチルセルロース等の
有機バインダーと水とを加えて混練し成形用原料とす
る。Next, a method for manufacturing the roller of the present invention will be described. FIG. 4 is a flowchart showing an example of the method for manufacturing a roller according to the present invention. In manufacturing the roller as described above, first, a raw material for molding is prepared using silicon carbide powder and carbon powder as main raw materials. That is, a predetermined amount of silicon carbide powder and carbon powder are mixed, and an organic binder such as phenol or methyl cellulose and water are added to the mixed powder and kneaded to obtain a raw material for molding.
【００１５】 次に、この成形用原料を用いて、軸状成
形体と複数個のリング状成形体とを別個に成形する。成
形は、押出成形によって成形用原料を筒状に押し出し、
所定の長さ（厚さ）で切断することにより、それぞれ所
望の軸状成形体とリング状成形体とを作製する。Next, using this molding raw material, an axial molded body and a plurality of ring-shaped molded bodies are separately molded. In molding, the raw material for molding is extruded into a cylindrical shape by extrusion molding,
By cutting at a predetermined length (thickness), desired shaft-shaped molded bodies and ring-shaped molded bodies are respectively produced.
【００１６】 次いで、得られた各成形体を乾燥後、軸
状成形体に複数個のリング状成形体を挿通して所定の間
隔で接着固定し、両者を一体化する、この接着に用いる
接着材としては、炭化珪素微粒子と炭素微粒子との混合
物に、フェノールやメチルセルロースなどを有機バイン
ダーとして添加し、更にペースト状になる程度の水を加
えて得た接合用スラリーが好適に使用できる。Next, after drying each of the obtained molded bodies, a plurality of ring-shaped molded bodies are inserted into the shaft-shaped molded body, and are adhered and fixed at predetermined intervals, and the two are united. As a material, a joining slurry obtained by adding phenol, methylcellulose, or the like as an organic binder to a mixture of silicon carbide fine particles and carbon fine particles and further adding water to a paste state can be suitably used.
【００１７】 接着後、これを金属珪素が存在する減圧
の不活性ガス雰囲気中又は真空中において、金属珪素を
含浸させながら焼成する。焼成温度は１３５０〜２５０
０℃の範囲とすることが好ましい。この焼成により、溶
融した金属珪素が、成形体中に含浸され、成形体中の炭
素粉末と反応してこれを炭化珪素化するとともに、気孔
中に充填されて緻密化する。更に、金属珪素は接合材と
しても作用し、軸状成形体とリング状成形体とをより強
固に一体化する。After the bonding, this is baked in a reduced pressure inert gas atmosphere or a vacuum where metallic silicon is present, while impregnating the metallic silicon. Firing temperature is 1350-250
The temperature is preferably in the range of 0 ° C. By this baking, the molten metal silicon is impregnated into the compact, reacts with the carbon powder in the compact to turn it into silicon carbide, and is filled in pores and densified. Further, the metallic silicon also acts as a bonding material, and more firmly integrates the shaft-shaped molded body and the ring-shaped molded body.
【００１８】 こうして得られたＳｉ−ＳｉＣ質のリン
グ付きローラー焼結体に対して、サンドブラストにより
表面仕上げを施した後、リングの表面を研磨加工して、
ローラーの反りを修正し、必要な形状精度を得る。具体
的には、ローラーを回転させた時に、リングの各々の中
心軸がローラー軸の中心軸と同軸となり、かつ各リング
の外表面が同一平面を形成するようにリングに研磨加工
を施す。前述のように、このリング付きのローラーで
は、リングの表面のみを研磨することにより必要な形状
精度を得ることができるので、従来のローラーに比し
て、外径精度を大幅に安価に向上させることができる。After the surface of the thus-obtained roller sintered body with a Si—SiC ring is subjected to sand blasting, the surface of the ring is polished.
Correct the roller warpage and obtain the required shape accuracy. Specifically, when the rollers are rotated, the rings are polished so that the central axis of each ring is coaxial with the central axis of the roller axis, and the outer surfaces of the rings form the same plane. As described above, in the roller with the ring, the required shape accuracy can be obtained by polishing only the surface of the ring, so that the outer diameter accuracy is significantly improved at a lower cost as compared with the conventional roller. be able to.
【００１９】 なお、本発明において、ローラーの寸法
や、リングの個数、配置間隔は、そのローラーが使用さ
れる炉の寸法・構造や、搬送される被加熱体等により適
宜決められる。In the present invention, the size of the roller, the number of rings, and the interval between the rollers are appropriately determined depending on the size and structure of the furnace in which the roller is used, the object to be heated, and the like.
【００２０】[0020]
【実施例】 以下、本発明を実施例に基づいて更に詳細
に説明するが、本発明はこれらの実施例に限定されるも
のではない。EXAMPLES Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited to these examples.
【００２１】 最大粒径１５０μｍの骨材となる炭化珪
素粉末５５重量％、平均粒径２０μｍの炭化珪素微粉末
２５重量％、平均粒径１０μｍの炭化珪素微粉末１５重
量％及び黒煙粉末５重量％を混合し、これにバインダー
としてメチルセルロースを外配で４重量％添加し、更に
水を加えてニーダーで３０分間混練することにより、成
形用の坏土を得た。55% by weight of silicon carbide powder as an aggregate having a maximum particle diameter of 150 μm, 25% by weight of silicon carbide fine powder having an average particle diameter of 20 μm, 15% by weight of silicon carbide fine powder having an average particle diameter of 10 μm, and 5% by weight of black smoke powder %, And 4% by weight of methylcellulose as an external binder was added thereto, water was further added, and the mixture was kneaded with a kneader for 30 minutes to obtain a forming clay.
【００２２】 成形には連続式の押し出し機を使用し、
押し出し時の圧力を３０kgf/cm2として前記の坏土を筒
状に成形した。押出成形後、６０℃で１５時間乾燥し、
所定の内径と外径を持つ筒状の成形体を得た。この成形
体を所定の寸法に切断して、ローラーの軸となる軸状成
形体と、リングとなるリング状成形体を作製した。な
お、接着後の真円度を保ちつつ接着を全面で行うため、
軸状成形体の外径とリング状成形体の内径との差は０．
５〜１ｍｍ程度となるようにした。A continuous extruder is used for molding.
The pressure at the time of extrusion was 30 kgf / cm 2 , and the kneaded clay was formed into a cylindrical shape. After extrusion, dried at 60 ° C for 15 hours,
A cylindrical molded body having a predetermined inner diameter and outer diameter was obtained. This molded product was cut into a predetermined size to produce a shaft-shaped molded product serving as a roller shaft and a ring-shaped molded product serving as a ring. In addition, in order to perform bonding on the entire surface while maintaining the roundness after bonding,
The difference between the outer diameter of the shaft-shaped molded body and the inner diameter of the ring-shaped molded body is 0.
It was set to about 5 to 1 mm.
【００２３】 平均粒径１０μｍの炭化珪素微粉末９５
重量％と黒煙粉末５重量％とを混合し、これにバインダ
ーとしてメチルセルロースを外配で２重量％添加し、更
に水を加えてペースト状になるまで混練して接着用の材
料（接着材）を得た。この接着材を軸状成形体のリング
取り付け予定位置に塗布し、その位置までリング状成形
体を差し込んで少し回転させることによりリングの内面
とチューブとが完全に接着材で密着するようにした。Silicon carbide fine powder 95 having an average particle size of 10 μm
% By weight and 5% by weight of black smoke powder, 2% by weight of methylcellulose as an external binder is added to the mixture, and water is further added and kneaded until a paste is formed. I got The adhesive was applied to a position where the ring of the shaft-shaped molded product was to be attached to the ring, and the ring-shaped molded product was inserted to that position and slightly rotated so that the inner surface of the ring and the tube were completely brought into close contact with the adhesive.
【００２４】 接着後、６０℃で１２時間以上乾燥し、
軸状成形体とリング状成形体の接合体を得た。この接合
体を金属珪素が存在する真空中において、１６５０℃で
金属珪素を含浸させながら焼成した。こうして得られた
焼結体に対し、必要な形状精度が得られるまでリング表
面の研磨加工を行い、リング付き炉内搬送用ローラーを
完成した。After bonding, dried at 60 ° C. for 12 hours or more,
A joined body of the shaft-shaped molded body and the ring-shaped molded body was obtained. This bonded body was fired at 1650 ° C. in a vacuum in which metallic silicon was present while impregnating with metallic silicon. The surface of the ring was polished on the sintered body thus obtained until the required shape accuracy was obtained, thereby completing a furnace transfer roller with a ring.
【００２５】[0025]
【発明の効果】 以上説明したように、本発明の炉内搬
送用ローラーは、その製造工程における焼成終了時点で
の反りを修正して必要な形状精度を得るにあたり、使用
時にセッターと接触するリングの表面のみに加工を施せ
ばよいので、結果的に、加工費用が安価なローラーを提
供することが可能になる。また、ローラー軸とリングが
一体化しているので、必要な形状精度を確保するにあた
って、ローラー軸とリングとの嵌め合い精度、リングの
ズレや緩み、熱膨張などの加工精度以外の問題を考慮す
る必要がない。更に、本発明の製造方法によれば、焼成
後のローラーの反りを修正するための研磨加工を可能に
し、少ない加工量で必要な形状精度を得ることができ
る。As described above, the in-furnace transfer roller of the present invention is a ring that comes into contact with the setter at the time of use in correcting the warpage at the end of firing in the manufacturing process and obtaining the required shape accuracy. Only the surface needs to be processed, and as a result, it is possible to provide a roller with low processing cost. In addition, since the roller shaft and ring are integrated, in order to ensure the required shape accuracy, consideration should be given to problems other than processing accuracy such as the fitting accuracy of the roller shaft and the ring, displacement and looseness of the ring, and thermal expansion. No need. Further, according to the manufacturing method of the present invention, polishing for correcting the warpage of the roller after firing can be performed, and the required shape accuracy can be obtained with a small processing amount.
【図１】 本発明に係るリング付き炉内搬送用ローラー
の実施形態の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of an embodiment of a ring-mounted in-furnace transfer roller according to the present invention.
【図２】 図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】 ローラーの反り量を示す説明図である。FIG. 3 is an explanatory diagram illustrating a warpage amount of a roller.
【図４】 本発明に係るリング付き炉内搬送用ローラー
の製造方法の一例を示すフロー図である。FIG. 4 is a flowchart showing an example of a method for producing a ring-mounted in-furnace transfer roller according to the present invention.
１…リング付き炉内搬送用ローラー、３…ローラー軸、
５…リング。1. Furnace transfer roller with ring, 3 ... Roller shaft,
5… Ring.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２２Ｆ 7/06 Ｂ２２Ｆ 7/06 Ｄ Ｅ Ｃ２２Ｃ 29/02 Ｃ２２Ｃ 29/02 Ｚ Ｆ１６Ｃ 13/00 Ｆ１６Ｃ 13/00 Ｅ Ｄ Ｆ２７Ｂ 9/24 Ｆ２７Ｂ 9/24 Ｒ Ｆターム(参考） 3J103 AA02 AA72 EA02 EA03 FA03 GA02 GA36 HA03 HA51 4K018 AD01 AD11 BA11 BA20 BB04 BC13 CA08 CA32 DA03 DA19 DA21 DA32 FA06 JA10 KA17 4K050 AA01 AA02 BA07 CF06 CF16 CG05 4K055 AA05 AA06 HA01 HA23 HA27──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) B22F 7/06 B22F 7/06 DE C22C 29/02 C22C 29/02 Z F16C 13/00 F16C 13/00 ED F27B 9/24 F27B 9/24 LF term (reference) 3J103 AA02 AA72 EA02 EA03 FA03 GA02 GA36 HA03 HA51 4K018 AD01 AD11 BA11 BA20 BB04 BC13 CA08 CA32 DA03 DA19 DA21 DA32 FA06 JA10 KA17 4K050 AA01 CF06 CB07 AA05 AA06 HA01 HA23 HA27
Claims (3)
するＳｉ−ＳｉＣ質焼結体からなるローラー軸に、同材
質からなる複数個のリングが、所定の間隔をもって一体
的に接合されていることを特徴とするリング付き炉内搬
送用ローラー。1. A plurality of rings made of the same material are integrally joined at predetermined intervals to a roller shaft made of a Si—SiC sintered body containing silicon carbide and silicon as constituent components. An in-furnace transfer roller with a ring, characterized in that:
の中心軸が、前記ローラー軸の中心軸と同軸となる請求
項１記載の炉内搬送用ローラー。2. The roller according to claim 1, wherein a central axis of each of the rings is coaxial with a central axis of the roller axis when the roller rotates.
して調合された成形用原料を用いて軸状成形体と複数個
のリング状成形体とを別個に成形し、得られた軸状成形
体に複数個のリング状成形体を挿通して所定の間隔で接
着固定した後、これを金属珪素が存在する減圧の不活性
ガス雰囲気中又は真空中において、金属珪素を含浸させ
ながら焼成することによりリング付きローラー焼結体を
得、当該焼結体のリングの表面を研磨加工することによ
り必要な形状精度を得ることを特徴とするリング付き炉
内搬送用ローラーの製造方法。3. A shaft-shaped molded body and a plurality of ring-shaped molded bodies are separately molded using a molding raw material prepared by using silicon carbide powder and carbon powder as main raw materials, and the obtained shaft-shaped molded body is obtained. After inserting a plurality of ring-shaped molded bodies through the body and bonding them at predetermined intervals, firing them while impregnating with metallic silicon in a reduced-pressure inert gas atmosphere or vacuum where metallic silicon exists. A method for producing an in-furnace transfer roller with a ring, comprising: obtaining a roller-sintered body with a ring; and polishing the surface of the ring of the sintered body to obtain a required shape accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36151799A JP4183108B2 (en) | 1999-12-20 | 1999-12-20 | In-furnace transport roller with ring and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36151799A JP4183108B2 (en) | 1999-12-20 | 1999-12-20 | In-furnace transport roller with ring and method for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001174165A true JP2001174165A (en) | 2001-06-29 |
| JP4183108B2 JP4183108B2 (en) | 2008-11-19 |
Family
ID=18473906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36151799A Expired - Fee Related JP4183108B2 (en) | 1999-12-20 | 1999-12-20 | In-furnace transport roller with ring and method for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4183108B2 (en) |
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| WO2019138888A1 (en) * | 2018-01-11 | 2019-07-18 | 日本碍子株式会社 | Heat treatment furnace and method for manufacturing same |
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1999
- 1999-12-20 JP JP36151799A patent/JP4183108B2/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| JP4183108B2 (en) | 2008-11-19 |
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