JPH0555202B2 - - Google Patents
Info
- Publication number
- JPH0555202B2 JPH0555202B2 JP60062636A JP6263685A JPH0555202B2 JP H0555202 B2 JPH0555202 B2 JP H0555202B2 JP 60062636 A JP60062636 A JP 60062636A JP 6263685 A JP6263685 A JP 6263685A JP H0555202 B2 JPH0555202 B2 JP H0555202B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- roll
- steel
- composite
- rolling
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 claims description 50
- 239000002131 composite material Substances 0.000 claims description 39
- 238000005096 rolling process Methods 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000001513 hot isostatic pressing Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 238000005245 sintering Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 239000000956 alloy Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000010791 quenching Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/035—Rolls for bars, rods, rounds, tubes, wire or the like
Description
（産業上の利用分野）
本発明は、鉄鋼線及び棒材等の圧延用リングロ
ールに関する。
（従来の技術）
鉄鋼圧延用ロールにおいて特に仕上圧延機用ロ
ールとしては、圧延材と接する部分（圧延使用
層）に耐摩耗性が要求される点から、使用層であ
る外層と、強靭材で形成された軸芯部とが溶着一
体化された複合ロールが使用されている。この複
合ロールは、主として遠心力鋳造法で鋳造段階で
複合一体化される。
一方、線材圧延の仕上列においては、最近は殆
ど超硬リングロールが用いられ、例えばブロツク
ミルでは第５図の如く、例えばWCとCoとで焼結
一体化されたWC系超硬材により形成されたリン
グロール１１が使用されている。また、該リング
ロール１１は、叙上の如く単独で使用されるほ
か、軸に焼嵌め等の機械的手段で固着され、組立
ロールとして使用される場合も多い。
（発明が解決しようとする問題点）
超硬リングロールを軸嵌して組立ロールとして
使用する場合、リングロール全体が超硬材であり
経済的でないばかりか、第６図の如く複雑な組立
構造とする必要がある。即ち、リングロール１
１′を軸に組み立て固着する場合、固定リング１
２、スペーサーリング１３等を用いて、軸に強固
に固定する必要があり、双鋼系の軸と超硬リング
材の熱膨張係数の大きい差を緩和する必要がある
からである。その結果、斯かる組立ロールはコス
トが非常に高くなる。
また、従来、リングロールの圧延材と接するカ
リバー部（孔型部）のみに耐摩耗性を付与する方
法がある。すなわち、鋳鋼ロールの孔型表面を耐
摩耗材で溶接、容射により肉盛する方法、表面焼
入等の表面処理により硬化させる方法であるが、
圧延圧力により肉盛部が剥離したり、硬化層を厚
くすることが困難で寿命が短かかつた。また溶接
性の良好な材料を選択する必要から高炭素材、高
合金材等の耐摩耗性に優れた材質の適用に問題が
あつた。
本発明は、かかる問題に鑑みなされたものであ
つて、低コストであつて、しかも軸嵌も容易で圧
延寿命の長い複合リングロールを提供することを
目的とする。
（問題点を解決するための手段）
上記目的を達成するための本発明の特徴とする
ところは靱性の優れた鋼材で形成された円筒状の
リング基体と、該基体の外周面に形成された環状
と凹溝に充填された超鋼材若しくは高速度鋼等の
耐摩耗性に優れた高合金鋼材の粉末が熱間静水圧
加圧により焼結されると共に凹溝内面に拡散接合
された圧延用環体とからなる点にある。
（実施例）
次に図面を参照して本発明の複合リングロール
について詳述する。
第１図は本発明の複合リングロールの構造を示
す断面図である。複合リングロール１は、所望の
孔型が外周面に形成された圧延用環体２と該環体
２の外周面を露出させて埋入されたリング基体３
とから構成されており、圧延用環体２は、鋼材で
形成されたリング基体３の外周面に形成された環
状の凹溝に充填された高耐摩耗性金属粉末が熱間
静水圧加圧（以下、HIPという。）により焼結さ
れると共に前記凹溝内面に拡散接合されている。
前記圧延用環体２は、圧延材と接しこれを孔型
で圧延成形する部分であつて、WC等の耐熱高硬
度材で形成された超硬材や耐摩耗性を有しかつ高
温硬度の高い高合金鋼材の焼結材で形成されてい
る。前記高合金鋼材として第１表のハイス材等を
例示できる。
(Industrial Application Field) The present invention relates to a ring roll for rolling steel wires, bars, etc. (Prior art) Rolls for steel rolling, especially rolls for finishing mills, are required to have wear resistance in the part that comes into contact with the rolled material (rolling layer), so the outer layer, which is the layer used, is made of tough material. A composite roll is used in which the formed shaft core part is welded and integrated. This composite roll is mainly integrated into a composite roll at the casting stage using a centrifugal casting method. On the other hand, in the finishing row of wire rod rolling, carbide ring rolls are almost always used these days. For example, in block mills, as shown in Fig. 5, rolls are made of WC-based cemented carbide material that is sintered and integrated with WC and Co. A ring roll 11 is used. In addition to being used alone as described above, the ring roll 11 is often fixed to a shaft by mechanical means such as shrink fitting and used as an assembled roll. (Problems to be Solved by the Invention) When a carbide ring roll is shaft-fitted and used as an assembly roll, the entire ring roll is made of carbide material, which is not economical, and the assembly structure is complicated as shown in Fig. 6. It is necessary to do so. That is, ring roll 1
When assembling and fixing around 1', fixing ring 1
2. It is necessary to firmly fix the shaft to the shaft using a spacer ring 13 or the like, and it is necessary to alleviate the large difference in coefficient of thermal expansion between the shaft made of double steel and the carbide ring material. As a result, such assembled rolls are very costly. Further, conventionally, there is a method of imparting wear resistance only to the caliber portion (hole-shaped portion) of the ring roll that comes into contact with the rolled material. In other words, there are methods of overlaying the grooved surface of a cast steel roll with a wear-resistant material by welding or blasting, and methods of hardening it by surface treatment such as surface hardening.
The build-up part peeled off due to rolling pressure, and it was difficult to thicken the hardened layer, resulting in a short life. Furthermore, since it is necessary to select a material with good weldability, there is a problem in the application of materials with excellent wear resistance such as high carbon materials and high alloy materials. The present invention was made in view of this problem, and an object of the present invention is to provide a composite ring roll that is low cost, easy to fit, and has a long rolling life. (Means for Solving the Problems) The present invention is characterized by a cylindrical ring base made of steel with excellent toughness, and a ring base formed on the outer peripheral surface of the base. For rolling, the annular and concave grooves are filled with powder of high alloy steel with excellent wear resistance, such as super steel or high speed steel, which is sintered by hot isostatic pressing and diffusion bonded to the inner surface of the concave groove. It is located at a point consisting of a ring. (Example) Next, the composite ring roll of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing the structure of the composite ring roll of the present invention. The composite ring roll 1 includes a rolling ring body 2 having a desired hole shape formed on its outer circumferential surface, and a ring base body 3 embedded in the ring body 2 with its outer circumferential surface exposed.
The rolling ring body 2 is made of a ring base 3 made of steel, and the highly wear-resistant metal powder filled in the annular groove formed on the outer peripheral surface of the ring base body 3 is hot isostatically pressed. (hereinafter referred to as HIP) and is diffusion bonded to the inner surface of the groove. The rolling ring body 2 is a part that comes into contact with the rolled material and roll-forms it with a groove, and is made of a superhard material made of a heat-resistant, high-hardness material such as WC, or a wear-resistant and high-temperature hardness material. Made of high quality sintered high alloy steel. Examples of the high alloy steel materials include the high speed steel materials shown in Table 1.
【表】
前記リング基体３を形成する鋼材は、靭性の優
れた機械構造用炭素鋼、構造用合金鋼等の材料か
ら適宜選択できる。
かかる複合リングロール１は、第２図の如く、
リング基体３の外周面に沿つて形成された凹溝４
に、圧延用環体２を形成すべき高耐摩耗材の粉末
を充填押圧し、カンニング処理した後HIP処理に
かけて得られた複合リング素材１′に所望の孔型
加工を施して得られる。
前記リング基体３の外周面に形成された凹溝４
は、複合リングロールの所望の幅及び深さに対し
て適当な余裕が持つた寸法とされている。この凹
溝４に充填押圧された高耐摩耗材粉末は、HIP処
理により焼結されて圧延用環体２を形成すると共
にリング基体３に拡散接合される。この場合、両
者を鋳造一体化した場合のように高合金材の圧延
用環体２から高合金成分がリング基体３に混入す
る、ということがないので、リング基体３の靭性
が劣化することがない。
また、HIPの際のカンニング処理において、リ
ング基体３の凹溝４は、粉末充填後の凹溝開口を
軟鋼板等の適宜の缶材で密封すればよいため、極
めて容易に行うことができ、生産性に優れる。
尚、圧延用環体２を高合金鋼材で形成した場合
圧延用環体２に耐摩耗性を付与するために、複合
リング素材１′に対し焼入れ焼戻し熱処理が施さ
れる。
以上説明したように、圧延用環体２とリング基
体３はHIP処理によつて一体接合され、また複合
リング素材１′は場合により焼入れ焼戻し熱処理
が施されるが、これらの処理に対して、リング基
体３にフエライト基地からなる低炭素低合金鋼を
用いると種々の点で極めて有利である。すなわ
ち、かかるフエライト基地からなる材質は、熱膨
張係数が小さいので、HIP処理時の加熱冷却の温
度変化によつても変形が小さく、拡散接合面で割
れ、剥離が生じ難くなり、また複合リング素材
１′の熱処理に際しても、前記素材１′の全体を焼
入ても、リング基体３には焼入れ作用が及ばず、
靭性劣化が生じない。もし、リング基体３に焼入
れ効果があると、複合リングロール１を軸嵌して
組立ロールとする際に割損が生じ易くなり好まし
くない。尚、複合リング素材１１′の圧延用環体
を含んだ外層のみを焼入れ熱処理に供することも
できるが、全体を熱処理するのに比べて作業が煩
雑で生産性の点で劣る。
以上説明した複合リグロール１は、ブロツクミ
ル等に使用する場合は軸に組立てずにそのまま使
用されるが、第３〜４図に示すように軸に組立て
て組立ロールとして使用される場合あも多い。
すなわち、第３図と如く、中央部外周に環状凸
部５が一体的に形成された軸６に、前記環状凸部
５を挟んで複合リング素材１′を２個焼嵌め、そ
の外側に鋼材等の強靭材で形成された固定リング
７を焼嵌め、溶接又はネジ止め等により軸６に固
着する。そして、圧延用環体に所望の孔型を形成
し、複合リングロール１が固着された組立ロール
を得る。
叙上の実施例では、孔型が２個形成された複合
リングロール１を軸に２個固定した例を示した
が、軸嵌又は溶接等により固定される複合リング
ロール１の数はこれに限らず、第４図の如く１個
でもよく、更には圧延製品やロール形状に応じて
２個以上設けてもよいことは勿論である。また、
複合リングロール１の圧延用環体２の数も２個に
限らないことは勿論であり、１個又は２個以上有
つても勿論よい。該環体２の数が沢山有る方が、
組立、加工等のコストが下がる利点がある。尚、
複合リングロール１はこれに対応した１個の複合
リング素材１′から加工形成してもよいが、低コ
ストで製造するには、圧延用環体が適宜の間隔で
多数形成された複合リング素材を適宜切断して、
所期の圧延用環体を含んだ複合リング素材を得、
これを用い所望の複合リングロール１の複数個を
製造すればよい。
本発明の複合リングロールは、圧延材と接する
孔型部はWC系超硬材や高合金鋼材で形成されて
いるにも拘らず、リング基体は鋼材であるため加
工性も良く、又強靭であり、溶接性も良好であ
る。従つて、第３図及び第４図に示す如く、軸
（鋼材又は鋳鉄材）に固定するに際して、複合リ
ングロール１を焼ばめや溶接又はキー溝を設けて
しまり嵌めする等の従来から用いられている安易
な方法で軸に固定することが可能となる。また、
圧延用環体２は断面三方がリング基体３に埋入さ
れているから、大きい圧延荷重が作用しても、従
来のWC系焼結リングを用いた組立ロールの如
く、リングの破損による飛散事故等がまつたくな
く、安全性の面でも極めて優れる。
次に具体的実施例を掲げて説明する。
異形鋼圧延用ロール（φ320×500mm）の製造
実施例
(1) 内径180mm、外径330mm、幅200mmの素材リン
グ外周に幅50mm、深さ35mm、の凹溝を素材リン
グの両端から各々55mmの位置に２筋形成したリ
ング基体を作成した。リング基体の材質は、
Ｃ：0.25％、Si：0.13％、Mn：0.41％（各重量
％）の低Ｃ鋼である。
(2) 前記凹溝に、下記第２表の成分のSKH10材
の粉末（100メツシユ以下）を充填押圧して、
カンニングして脱気後、200Kg／cm2、1180℃で
HIP処理し、粉末の焼結と、両者の拡散接合を
同時に行つた。[Table] The steel material forming the ring base 3 can be appropriately selected from materials such as mechanical structural carbon steel and structural alloy steel that have excellent toughness. Such a composite ring roll 1, as shown in FIG.
A groove 4 formed along the outer peripheral surface of the ring base 3
The composite ring material 1' is filled with powder of a highly wear-resistant material to form the rolling ring body 2 and pressed, subjected to cheating treatment and HIP treatment, and then the resulting composite ring material 1' is processed into a desired hole shape. A groove 4 formed on the outer peripheral surface of the ring base 3
The dimensions are such that there is an appropriate margin for the desired width and depth of the composite ring roll. The highly wear-resistant material powder filled and pressed into the groove 4 is sintered by HIP processing to form the rolling ring body 2 and is diffusion bonded to the ring base body 3. In this case, the high alloy components from the rolling ring body 2 made of a high alloy material will not mix into the ring base body 3 unlike when both are integrally cast, so the toughness of the ring base body 3 will not deteriorate. do not have. In addition, in the cheating process during HIP, the groove 4 of the ring base 3 can be formed very easily since the groove opening after powder filling can be sealed with an appropriate can material such as a mild steel plate. Excellent productivity. When the rolling ring body 2 is made of high alloy steel, the composite ring material 1' is subjected to quenching and tempering heat treatment in order to impart wear resistance to the rolling ring body 2. As explained above, the rolling ring body 2 and the ring base body 3 are integrally joined by HIP processing, and the composite ring material 1' is sometimes subjected to quenching and tempering heat treatment. The use of low-carbon, low-alloy steel made of ferrite base for the ring base 3 is extremely advantageous in various respects. In other words, the material made of such a ferrite base has a small coefficient of thermal expansion, so it is less deformed even by temperature changes during heating and cooling during HIP processing, and is less prone to cracking and peeling at the diffusion bonding surface. 1', even if the entire material 1' is quenched, the quenching action does not reach the ring base 3;
No deterioration of toughness occurs. If the ring base body 3 has a hardening effect, it is not preferable because breakage is likely to occur when the composite ring roll 1 is fitted into an assembled roll. It is also possible to subject only the outer layer of the composite ring material 11', including the rolling ring, to the quenching heat treatment, but this is more complicated and less productive than heat treating the entire body. When the composite reroll 1 described above is used in a block mill or the like, it is used as is without being assembled on a shaft, but as shown in FIGS. 3 and 4, it is often assembled on a shaft and used as an assembly roll. That is, as shown in FIG. 3, two composite ring materials 1' are shrink-fitted to a shaft 6 having an annular projection 5 integrally formed on the outer periphery of the central portion, with the annular projection 5 in between, and a steel material is attached to the outside thereof. A fixing ring 7 made of a strong material such as the above is fixed to the shaft 6 by shrink fitting, welding, screwing, or the like. Then, a desired hole shape is formed in the rolling ring to obtain an assembled roll to which the composite ring roll 1 is fixed. In the above embodiment, two composite ring rolls 1 having two hole shapes are fixed to the shaft, but the number of composite ring rolls 1 fixed by shaft fitting or welding may vary. Of course, the number is not limited to one, as shown in FIG. 4, or two or more may be provided depending on the rolled product and the shape of the roll. Also,
Of course, the number of rolling rings 2 of the composite ring roll 1 is not limited to two, and may be one or two or more. The person who has a large number of rings 2,
This has the advantage of reducing assembly, processing, etc. costs. still,
The composite ring roll 1 may be formed from a single composite ring material 1', but in order to manufacture it at low cost, a composite ring material in which a large number of rolling rings are formed at appropriate intervals is required. Cut it as appropriate,
A composite ring material containing the desired rolling ring was obtained,
A plurality of desired composite ring rolls 1 may be manufactured using this. The composite ring roll of the present invention has good workability and is strong because the ring base is made of steel, although the hole portion in contact with the rolled material is made of WC-based cemented carbide or high-alloy steel. It also has good weldability. Therefore, as shown in FIGS. 3 and 4, when fixing the composite ring roll 1 to a shaft (steel material or cast iron material), conventional methods such as shrink fitting, welding, or tight fitting by providing a key groove are used. It is possible to fix it to the shaft using the easy method described above. Also,
Since the rolling ring body 2 has three sides embedded in the ring base body 3, even if a large rolling load is applied, there will be no scattering accidents due to ring breakage, unlike in the case of assembled rolls using conventional WC-based sintered rings. It is also extremely safe in terms of safety. Next, specific examples will be listed and explained. Production example of a deformed steel rolling roll (φ320 x 500 mm) (1) A concave groove with a width of 50 mm and a depth of 35 mm is formed on the outer periphery of a material ring with an inner diameter of 180 mm, an outer diameter of 330 mm, and a width of 200 mm. A ring base with two stripes formed at certain positions was created. The material of the ring base is
It is a low C steel with C: 0.25%, Si: 0.13%, and Mn: 0.41% (each % by weight). (2) Fill and press SKH10 material powder (100 mesh or less) with the ingredients listed in Table 2 below into the groove,
After cheating and degassing, 200Kg/cm 2 at 1180℃
HIP processing was performed, and the powder was sintered and the two were simultaneously diffusion bonded.
【表】
(3) その後、1180℃に加熱し油冷焼入後530℃で
焼戻し熱処理を行いカン材を機械加工により除
去し、複合リング素材を得た。
圧延用環体の表面硬度はHs90、その他の部
分はHs35であつた。また、拡散接合部の圧縮
せん断強度が85Kg／mm3であることが確認され
た。
(4) この複合リング素材２個を第３図の如く軸に
焼嵌め固定し、孔型加工等を行い、所期の複合
リングロールが固着された棒鋼圧延用ロールを
得た。
（発明の効果）
以上説明した通り、本発明に係る複合リングロ
ールは、靱性の優れた鋼材で形成された円筒状の
リング基体と、該基体の外周面に形成された環状
と凹溝に充填された超硬材若しくは高速度鋼等の
耐摩耗性に優れた高合金鋼材の粉末がHIPにより
焼結されると共に凹溝内面に拡散接合された圧延
用環体とで構成したから、鉄鋼線材や棒材等の圧
延用ロールとして低コスト、長寿命であり、かつ
万一破損しても飛散することがないので、安全性
にも優れる。また、圧延用環体とリング基体とは
HIP処理により拡散接合されているので、高合金
材質の前記環体からリング基体への高合金成分の
混入を可及的に防止でき、リング基体の靭性が劣
化させることがなく、また両者が異材質であるに
も拘らず、強固に接合することができる。
従つて、リング基体が強靭材で形成されている
本発明の複合リングロールを組立ロールに適用す
れば、簡単な焼ばめ法や、溶接、ネジ、ボルト等
で軸に低コストで組立てることができ、しかも軸
と再利用が可能となる。
また、圧延用環体はリング基体の外周面に形成
された凹溝に粉末を充填してHIPにより形成され
るから、HIPの際の凹溝の密封は凹溝開口を適宜
の缶材で閉塞するだけでよく、極めて簡単にカン
ニング処理を行うことかでき、生産性に優れる。[Table] (3) After that, it was heated to 1180°C, oil-quenched, and then tempered at 530°C, and the can material was removed by machining to obtain a composite ring material. The surface hardness of the rolling ring was Hs90, and the other parts were Hs35. It was also confirmed that the compression shear strength of the diffusion bonded portion was 85Kg/mm 3 . (4) These two composite ring materials were shrink-fitted onto a shaft as shown in FIG. 3, and subjected to hole processing, etc., to obtain a steel bar rolling roll to which the desired composite ring roll was fixed. (Effects of the Invention) As explained above, the composite ring roll according to the present invention includes a cylindrical ring base made of a steel material with excellent toughness, and an annular groove formed on the outer peripheral surface of the base with filling. The powder of high-alloy steel with excellent wear resistance such as cemented carbide or high-speed steel is sintered by HIP, and the rolling ring is diffusion-bonded to the inner surface of the groove. It is a low-cost, long-life roll for rolling materials such as steel and bars, and is also highly safe because it will not scatter even if it breaks. Also, what are rolling rings and ring bases?
Since the diffusion bonding is carried out by HIP processing, it is possible to prevent as much as possible the mixing of high alloy components from the ring body made of high alloy material into the ring base, and the toughness of the ring base will not deteriorate, and the difference between the two can be prevented. Despite the material, it can be firmly bonded. Therefore, if the composite ring roll of the present invention, in which the ring base is made of a strong material, is applied to an assembly roll, it can be assembled onto the shaft using a simple shrink fitting method, welding, screws, bolts, etc. at low cost. Moreover, the shaft can be reused. In addition, since the rolling ring is formed by HIP by filling powder into a groove formed on the outer peripheral surface of the ring base, the groove opening during HIP is sealed by closing the groove opening with an appropriate can material. All you have to do is to do this, and it is extremely easy to cheat, resulting in excellent productivity.
第１図に本発明に係る複合リングロールの断面
図、第２図は複合リング素材の断面図、第３図及
び第４図は本発明に係る複合リングロールを適用
した組立ロールの一部断面図、第５図は従来にリ
ングロールの断面図、第６図は従来の組立ロール
の断面図を示す。
１……複合リングロール、２……圧延用環体、
３……リング基体。
Fig. 1 is a sectional view of a composite ring roll according to the present invention, Fig. 2 is a sectional view of a composite ring material, and Figs. 3 and 4 are partial cross sections of an assembled roll to which the composite ring roll according to the present invention is applied. 5 shows a sectional view of a conventional ring roll, and FIG. 6 shows a sectional view of a conventional assembled roll. 1...Composite ring roll, 2...Rolling ring,
3...Ring base.
Claims (1)
グ基体と、該基体の外周面に形成された環状の凹
溝に充填された超鋼材若しくは高速度鋼等の耐摩
耗性に優れた高合金鋼材の粉末が熱間静水圧加圧
により焼結されると共に凹溝内面に拡散接合され
た圧延用環体とからなることを特徴とする複合リ
ングロール。 ２ リング基体はフエライト基地からなる低炭素
低合金鋼であることを特徴とする特許請求の範囲
第１項記載の複合リングロール。[Claims] 1. A cylindrical ring base made of a steel material with excellent toughness, and a wear-resistant material such as super steel or high-speed steel filled in an annular groove formed on the outer peripheral surface of the base. 1. A composite ring roll comprising a rolling ring formed by sintering high-alloy steel powder with excellent properties by hot isostatic pressing and diffusion bonded to the inner surface of a groove. 2. The composite ring roll according to claim 1, wherein the ring base is made of low carbon, low alloy steel comprising a ferrite base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6263685A JPS61219408A (en) | 1985-03-26 | 1985-03-26 | Composite ring roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6263685A JPS61219408A (en) | 1985-03-26 | 1985-03-26 | Composite ring roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61219408A JPS61219408A (en) | 1986-09-29 |
| JPH0555202B2 true JPH0555202B2 (en) | 1993-08-16 |
Family
ID=13206007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6263685A Granted JPS61219408A (en) | 1985-03-26 | 1985-03-26 | Composite ring roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61219408A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH075934B2 (en) * | 1987-05-29 | 1995-01-25 | 株式会社クボタ | Composite member having excellent wear resistance, seizure resistance, and rough skin resistance, and method for manufacturing the same |
| JPS6442701U (en) * | 1987-09-05 | 1989-03-14 | ||
| JPH0519122Y2 (en) * | 1987-09-08 | 1993-05-20 | ||
| JPH0160701U (en) * | 1987-10-07 | 1989-04-18 | ||
| DE3806546C1 (en) * | 1988-03-01 | 1989-03-02 | Seilstorfer Gmbh & Co Metallurgische Verfahrenstechnik Kg, 8092 Haag, De | |
| JPH01252704A (en) * | 1988-03-31 | 1989-10-09 | Kubota Ltd | Complex member and its manufacture |
| JPH01252703A (en) * | 1988-03-31 | 1989-10-09 | Kubota Ltd | Roll for rolling shaped steel and manufacture thereof |
| JP2680616B2 (en) * | 1988-08-03 | 1997-11-19 | 日立金属株式会社 | Composite roll |
| JPH0265403U (en) * | 1988-10-31 | 1990-05-17 | ||
| WO1995003126A1 (en) * | 1993-07-20 | 1995-02-02 | Maschinenfabrik Köppern Gmbh & Co. Kg | Roller presses, in particular for crushing strongly abrasive substances |
| DE19827861A1 (en) * | 1997-06-27 | 1999-01-07 | Mitsubishi Materials Corp | Thermal shock resistant composite roll |
| TW201330979A (en) * | 2011-10-28 | 2013-08-01 | Smidth As F L | Wear-resistant roller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5499759A (en) * | 1978-01-24 | 1979-08-06 | Kobe Steel Ltd | Roll for hot rolling |
| JPS6046889A (en) * | 1983-08-24 | 1985-03-13 | Kuroki Kogyosho:Kk | Production of multi-layered roll |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5377936U (en) * | 1976-12-02 | 1978-06-29 | ||
| JPS54182635U (en) * | 1978-06-15 | 1979-12-25 |
-
1985
- 1985-03-26 JP JP6263685A patent/JPS61219408A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5499759A (en) * | 1978-01-24 | 1979-08-06 | Kobe Steel Ltd | Roll for hot rolling |
| JPS6046889A (en) * | 1983-08-24 | 1985-03-13 | Kuroki Kogyosho:Kk | Production of multi-layered roll |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61219408A (en) | 1986-09-29 |
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| LAPS | Cancellation because of no payment of annual fees |