JPS6313240Y2 - - Google Patents
Info
- Publication number
- JPS6313240Y2 JPS6313240Y2 JP1983202433U JP20243383U JPS6313240Y2 JP S6313240 Y2 JPS6313240 Y2 JP S6313240Y2 JP 1983202433 U JP1983202433 U JP 1983202433U JP 20243383 U JP20243383 U JP 20243383U JP S6313240 Y2 JPS6313240 Y2 JP S6313240Y2
- Authority
- JP
- Japan
- Prior art keywords
- skid
- coating layer
- heat
- rail
- rider
- 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
- 239000000919 ceramic Substances 0.000 claims description 18
- 239000011247 coating layer Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical group N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Charging Or Discharging (AREA)
Description
【考案の詳細な説明】
この考案は鋼片加熱炉のスキツドライダの改良
に係る。[Detailed description of the invention] This invention relates to an improvement of a skid rider for a billet heating furnace.
鋼片加熱炉において鋼片等の被加熱材を搬送す
るウオーキングビームのスキツドパイプにはいわ
ゆるスキツドボタンが所定間隔をおいて取付けら
れ、被加熱材を載架するようになつている。 In a steel billet heating furnace, so-called skid buttons are attached at predetermined intervals to skid pipes of a walking beam that conveys materials to be heated, such as steel billets, on which the materials to be heated are mounted.
スキツドパイプは通例水冷されて変形が防止さ
れているが、これに取付けられているスキツドボ
タンはスキツドパイプから冷却されるだけであつ
て耐熱鋼または耐熱合金で製作されるが、冷却が
過ぎると載架した被加熱材との接触部の熱を奪つ
て温度を下げ、スキツドマークを生ずる原因にな
り、またスキツドボタンの冷却が不足するときは
負荷によつて変形し、熱経済に悪影響を及ぼす等
好ましくない結果を生ずる。 The skid pipe is usually water-cooled to prevent deformation, but the skid button attached to it is only cooled from the skid pipe and is made of heat-resistant steel or heat-resistant alloy, but if it cools too much, it will damage the mounted object. It removes heat from the contact area with the heating material and lowers the temperature, causing skid marks. Also, when the skid button is insufficiently cooled, it deforms under load, causing undesirable results such as adversely affecting thermal economy. .
これを改然するためセラミツク製のスキツドボ
タン本体を耐火煉瓦を介して受け金物の凹所に嵌
合して固着し、或いは受け金物の上面に設けた突
起によつて挟持し、ボタン本体の底面と受け金物
との接触面との間にセラミツクフアイバペーパの
ごとき耐火物を挟んでスキツドボタン本体にかか
る荷重を均一に耐火煉瓦に作用させてボタン本体
の損傷を防止するようにしたスキツドライダが提
案されている。 In order to correct this, the ceramic skid button body is fitted and fixed in the recess of the receiving metal via a refractory brick, or it is held between the protrusions provided on the upper surface of the receiving metal, and the bottom surface of the button body and A skid rider has been proposed in which a refractory such as ceramic fiber paper is sandwiched between the contact surface with the receiving metal part and the load applied to the skid button body is evenly applied to the refractory bricks, thereby preventing damage to the button body. .
また受け金物の上面に断熱材を上面を露出して
埋めこんで、スキツドマークの発生を防止するよ
うにしたもの、或いは上面が開放した箱型の凹所
をもつた超耐熱鋼製の上半部を中空の耐熱鋼製の
下半部に重ねて固着し、下半部の底部をスキツド
パイプに固着すると共に下半部の中空部に断熱材
を充填して断熱性を高めた構造としてスキツドマ
ークの発生を防止すると共にスキツドライダの寿
命を延長しようとする提案等の多くの提案が出さ
れているが、いずれも十分な効果を挙げることが
できず、例えばセラミツク製のスキツドレールを
耐火煉瓦或いは板状の低膨脹セラミツクを介して
受け金物に装着してライダとする構造では、これ
を製造するには別途製作された二つのセラミツク
が受け金物に嵌合または挟持された構造となるた
め固着が強固でなく、使用の際がたつく結果、１
年間の使用によつてその半数以上に割れに基づく
セラミツクの欠落、接触面の破損等が発生しスキ
ツドマークの防止には役立つているが、寿命の点
でなお一層の改善が望まれている。 In addition, a heat insulating material is embedded in the upper surface of the receiving metal with the upper surface exposed to prevent the occurrence of skid marks, or an upper half made of super heat-resistant steel that has a box-shaped recess with an open upper surface. The structure is stacked and fixed on a hollow heat-resistant steel lower half, and the bottom of the lower half is fixed to the skid pipe, and the hollow part of the lower half is filled with heat insulating material to improve insulation, which prevents skid marks from occurring. Although many proposals have been made to prevent this and extend the life of skid rails, none of them have been sufficiently effective. In a structure in which the lidar is attached to a receiving hardware via an expanded ceramic, the fixation is not strong because two separately produced ceramics are fitted or sandwiched in the receiving hardware to manufacture this. As a result of shaking during use, 1
Through annual use, more than half of the ceramic parts break due to cracking, and the contact surface is damaged.Although it is useful for preventing skid marks, further improvements are desired in terms of service life.
この考案はスキツドマークの発生を防止すると
共に寿命の改善されたスキツドライダを提供する
ことを目的とし、鋼片加熱炉のスキツドライダに
おいて、
頭部を露出して水溶性酸化物結合材の塗布と耐
火物粉末の散布との繰返しによつて形成された多
孔質被覆層を有するセラミツクス製のスキツドレ
ールが、該被覆層の外側を耐熱性金属で所定形状
に鋳ぐるまれ、該鋳ぐるみ金属部が該被覆層を間
に挟んでスキツドレールと一体に成形されたサド
ルを構成している構造を特徴とするスキツドライ
ダに係る。 The purpose of this invention is to prevent the occurrence of skid marks and provide a skid rider with improved service life.The skid rider for a steel billet heating furnace has its head exposed and is coated with a water-soluble oxide binder and refractory powder. A skid rail made of ceramics has a porous coating layer formed by repeatedly spraying the coating layer, and the outside of the coating layer is cast into a predetermined shape with heat-resistant metal, and the cast metal part covers the coating layer. This invention relates to a skid rider characterized by a structure in which a saddle integrally formed with a skid rail is sandwiched therebetween.
次に添付図面に示す実施例について説明する。 Next, embodiments shown in the accompanying drawings will be described.
ウオーキングビームのスキツドパイプ１の上面
２にはパイプ中心線に沿つてスキツドライダ３が
所定間隔をおいて溶接、またはピン止め等によつ
て固着されており、スキツドパイプ１の上昇、前
進、降下、後退の動作の繰り返しによつてライダ
３上に載架された鋼片等の被加熱材を前方へ搬送
することは通例の通りである。 On the upper surface 2 of the skid pipe 1 of the walking beam, skid riders 3 are fixed at predetermined intervals along the center line of the pipe by welding, pinning, etc., and the skid pipe 1 moves upward, forward, descends, and retreats. It is customary to carry forward the material to be heated, such as a steel piece, mounted on the rider 3 by repeating the above steps.
スキツドライダ３はサドル４、スキツドレール
５およびスキツドレール５の頭部を除いてレール
の外面を被覆してレール５とサドル４との間の隙
間を埋める耐火物被覆層６とよりなる。 The skid rider 3 consists of a saddle 4, a skid rail 5, and a refractory coating layer 6 that covers the outer surface of the skid rail 5 except for the head of the skid rail 5 and fills the gap between the rail 5 and the saddle 4.
サドルレール５は例えば窒化珪素結合炭化珪素
の如きセラミツクで製作され、頭部を除いてジル
コニア、アルミナ、シリカ等のセラミツク、また
は耐火物粉末とコロイダルシリカ、水ガラス等の
水溶性酸化物結合剤とを交互に塗布、散布を繰り
返して多孔性状態で被覆し、自然乾燥したのち加
熱して水分を除去し、強固にして、次の鋳ぐるみ
工程で熱衝撃または熱収縮差による締め付けによ
つてセラミツクが割れるのを防止する。被覆層は
およそ20〜30％程度の気孔率とし、厚さはおよそ
５mmないし10mmとすれば効果的である。 The saddle rail 5 is made of ceramic such as silicon nitride bonded silicon carbide, and except for the head part, it is made of ceramic such as zirconia, alumina, silica, etc., or made of refractory powder and a water-soluble oxide binder such as colloidal silica or water glass. The coating is alternately applied and sprayed repeatedly to form a porous coating, then air-dried, heated to remove moisture, strengthened, and made into ceramic by thermal shock or tightening due to differential heat shrinkage in the next casting process. prevent it from cracking. It is effective if the coating layer has a porosity of about 20 to 30% and a thickness of about 5 mm to 10 mm.
次に所定形状すなわちサドル形状のキヤビテイ
を有する鋳造用鋳型の中に組み込んで、前記セラ
ミツク粉末で被覆した部分をJIS・SCH18の如き
通例の鋳鋼用耐熱鋼または耐熱合金で鋳ぐるみ、
サドル４を形成する。即ちセラミツクス製のレー
ル５の頭部が露出し、耐火物粒子の多孔質被覆層
６で被覆された側面下半部と底面とが所定形状の
サドル４で鋳ぐるまれている構造のスキツドライ
ダとする。 Next, it is assembled into a casting mold having a cavity in a predetermined shape, that is, a saddle shape, and the part coated with the ceramic powder is cast with a heat-resistant steel or heat-resistant alloy for regular casting steel such as JIS / SCH18,
A saddle 4 is formed. That is, the skid rider has a structure in which the head of the rail 5 made of ceramics is exposed, and the lower half of the side surface and the bottom surface covered with the porous coating layer 6 of refractory particles are molded with a saddle 4 having a predetermined shape. .
このスキツドライダを通例の通りスキツドパイ
プの所定位置に固着して使用する。 This skid rider is used by being fixed to a predetermined position on the skid pipe as usual.
スキツドマークの発生を防止するためには熱伝
導度の大きな金属材料と被加熱材が接触するのを
避ければよく、従つて本考案においてはスキツド
レールの頭部は金属製のサドルから上方へ数mmな
いし数cm突出させる。また鋳ぐるみ部分の高さは
スキツドパイプによつて冷却されるサドルの鋳ぐ
るみ金属の上端部の温度がおよそ1100℃以下にな
るような高さとすることが望ましい。 In order to prevent the occurrence of skid marks, it is sufficient to avoid contact between metal materials with high thermal conductivity and the heated material. Therefore, in the present invention, the head of the skid rail should be placed several mm or more above the metal saddle. Make it stick out a few cm. Further, it is desirable that the height of the cast-in part be such that the temperature of the upper end of the cast-in metal of the saddle, which is cooled by the skid pipe, is approximately 1100°C or less.
以上説明したように本考案のスキツドライダは
セラミツク製のスキツドレールの頭部を露出し
て、耐火物粉末と水溶性酸化物結合材とによつて
多孔質被覆層が形成され、この被覆層の外側を耐
熱鋼または耐熱合金で鋳ぐるんであり、これをス
キツドパイプに固着して使用するので一体型の強
固な構造体が得られ、セラミツク製スキツドレー
ルの鋳ぐるみ部分と金属製サドルとの間に介在す
る耐火物粒子が水溶性酸化物結合材によつて結
合、形成された多孔質被覆層が緩衝帯および断熱
層となるのでセラミツクレールの割れを防止する
ことができるほか、セラミツクの長所である高温
強度および低熱伝導度を充分に生かしたスキツド
ライダとすることができる。すなわち被加熱材の
荷重はセラミツクレールで支え、セラミツクレー
ルは多孔質の耐火物被覆層を介して金属製サドル
に固着され、このサドルはスキツドパイプに固着
されて冷却されるので、実用的には30Kgｆ／cm2ま
での荷重に耐えることができる。 As explained above, in the skid rail of the present invention, the head of the ceramic skid rail is exposed, and a porous coating layer is formed by refractory powder and a water-soluble oxide binder, and the outside of this coating layer is exposed. It is cast in heat-resistant steel or heat-resistant alloy, and is fixed to the skid pipe to create an integrated, strong structure. The porous coating layer formed by bonding the particles together with the water-soluble oxide binder acts as a buffer zone and a heat insulating layer, which prevents cracking of the ceramic rail and also improves the high-temperature strength and strength of ceramic. It is possible to create a skid rider that takes full advantage of its low thermal conductivity. In other words, the load of the material to be heated is supported by the ceramic rail, which is fixed to a metal saddle via a porous refractory coating layer, and this saddle is fixed to the skid pipe and cooled, so in practical terms the load is 30Kgf. Can withstand loads up to / cm2 .
そのほか、セラミツクレールを耐熱金属で鋳ぐ
るんで使用するので高価なセラミツクの使用量を
減らすことができ、或いは金属製スキツドボタン
（ライダ）に比べて被加熱材の受圧面積をおよそ
１／３に減ずることができるのでスキツドライダの
小型化、あるいは数を少なくすることが可能にな
り、被加熱材の裏面の受熱が増加する結果熱経済
性を向上させることができる等の多くの実用上の
効果が得られる。 In addition, since the ceramic rail is used by being cast with heat-resistant metal, the amount of expensive ceramic used can be reduced, or the pressure receiving area of the heated material can be reduced to approximately 1/3 compared to a metal skid button (rider). This makes it possible to downsize or reduce the number of skid sliders, and as a result of increasing heat reception on the back side of the heated material, many practical effects can be obtained, such as improving thermal economy. .
第１図は本考案のスキツドライダをスキツドパ
イプに固着した状態を示す要部断面図、第２図は
同じく第１図−断面図である。
１……スキツドパイプ、３……スキツドライ
ダ、４……サドル、５……スキツドレール、６…
…耐火物被覆層。
FIG. 1 is a cross-sectional view of essential parts of the skid rider of the present invention fixed to a skid pipe, and FIG. 2 is a cross-sectional view taken from FIG. 1. 1... skid pipe, 3... skid rider, 4... saddle, 5... skid rail, 6...
...Refractory coating layer.
Claims (1)
火物粉末の散布との繰返しによつて形成された多
孔質被覆層を有するセラミツクス製のスキツドレ
ールが、 該被覆層の外側を耐熱性金属で所定形状に鋳ぐ
るまれ、 該鋳ぐるみ金属部が該被覆層を間に挟んでスキ
ツドレールと一体に成形されたサドルを構成して
いる構造を特徴とするスキツドライダ。[Scope of Claim for Utility Model Registration] A porous coating layer formed by repeatedly applying a water-soluble oxide binder and dispersing refractory powder with the head exposed in a skid drier for a steel billet heating furnace. A skid rail made of ceramics having the above coating layer is cast into a predetermined shape with a heat-resistant metal on the outside of the coating layer, and the cast metal portion constitutes a saddle integrally formed with the skid rail with the coating layer sandwiched therebetween. A skid rider that features a structure that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20243383U JPS60110454U (en) | 1983-12-28 | 1983-12-28 | Sketch driver for billet heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20243383U JPS60110454U (en) | 1983-12-28 | 1983-12-28 | Sketch driver for billet heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60110454U JPS60110454U (en) | 1985-07-26 |
| JPS6313240Y2 true JPS6313240Y2 (en) | 1988-04-14 |
Family
ID=30764874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20243383U Granted JPS60110454U (en) | 1983-12-28 | 1983-12-28 | Sketch driver for billet heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60110454U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102205A (en) * | 1978-01-31 | 1979-08-11 | Kurosaki Refractories Co | Skid structure in heating furnace |
-
1983
- 1983-12-28 JP JP20243383U patent/JPS60110454U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102205A (en) * | 1978-01-31 | 1979-08-11 | Kurosaki Refractories Co | Skid structure in heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60110454U (en) | 1985-07-26 |
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