JPS5838682A - Composite abrasion resistance member and its manufacture - Google Patents
Composite abrasion resistance member and its manufactureInfo
- Publication number
- JPS5838682A JPS5838682A JP56135943A JP13594381A JPS5838682A JP S5838682 A JPS5838682 A JP S5838682A JP 56135943 A JP56135943 A JP 56135943A JP 13594381 A JP13594381 A JP 13594381A JP S5838682 A JPS5838682 A JP S5838682A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- ring
- cemented carbide
- contact surface
- contact
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
- B23K15/0093—Welding characterised by the properties of the materials to be welded
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は超硬合金と鋼材または鋳鉄からなる複合耐摩部
材及びその製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite wear-resistant member made of cemented carbide and steel or cast iron, and a method for manufacturing the same.
従来、ＷＣ−Ｃｏ 、 ＷＣ−Ｔ ｉ Ｃ−Ｃｏ等で代
表される超硬合金は切削工具、耐摩耗部材、耐衝撃工具
等に広く利用されているが、特に耐摩耗部材として熱間
圧延ロールや線引ダイス等では超硬合金の靭性が鋼材に
較べて低いために超硬ソリッドで用いるとすれば必要以
上に寸法を大きくして安全係数を高めている。しかしな
がら、超硬合金は主成分としてのＷＣやＴｉＣ、ＴａＣ
が高価であり製品としては極めて高くなり、省資源の上
でも問題があった。Conventionally, cemented carbide represented by WC-Co, WC-TiC-Co, etc. has been widely used for cutting tools, wear-resistant members, impact-resistant tools, etc., but it is especially used as a wear-resistant member for hot rolling rolls. Since the toughness of cemented carbide is lower than that of steel in wire drawing dies, etc., if solid cemented carbide is used, the dimensions are made larger than necessary to increase the safety factor. However, cemented carbide has WC, TiC, and TaC as its main components.
However, it is expensive, making it extremely expensive as a product, and there are also problems in terms of resource conservation.
この問題を解決するために通常は耐摩耗性を要する部分
のみに超硬合金を使用して鋼や鋳鉄との複合部材として
利用されている。この複合部材を製造するには、超硬合
金リングの内面にＦｅ−Ｎｉ −５ｉ −Ｃ系の鋳物を
鋳ぐるみ鋳造により接合し、その内側に鋼製リングを冷
し嵌め等により嵌合する方法や超硬合金と鋼製部材の間
にＡｇ等のロー材％を入れて全体を６００〜９００℃で
加熱することによって両者をロー付けする方法がある。To solve this problem, cemented carbide is usually used only in parts that require wear resistance, and is used as a composite member with steel or cast iron. To manufacture this composite member, a Fe-Ni-5i-C casting is joined to the inner surface of a cemented carbide ring by through-casting, and a steel ring is fitted to the inner side by cold fitting, etc. Alternatively, there is a method in which a brazing material such as Ag is placed between a cemented carbide and a steel member, and the two are brazed by heating the whole at 600 to 900°C.
しかし、前者の方法では鋳ぐるみ鋳造が作業性悪く加工
性に劣り、また接合面の強度が不充分である。また後者
の方法では全体を高温で加熱するために超硬合金の熱膨
張係数が鋼材の約Ｊ／２であることから、ロー付面に熱
応力が残り使用中に割れるとか、大きなものの製造が困
難などの問題があった。前者の方法でも熱応力の問題は
同様である。またロー付は法のものは、ロー付層が高温
での疲労強度が弱く使用時にロー付はずれ等の現象があ
り耐熱性が劣る。However, in the former method, the workability of casting is poor, and the strength of the joint surface is insufficient. In addition, in the latter method, the entire body is heated at a high temperature, and the thermal expansion coefficient of the cemented carbide is approximately J/2 that of steel, so thermal stress remains on the brazed surface, which may cause it to crack during use, or make it difficult to manufacture large items. There were problems such as difficulties. The problem of thermal stress is also the same in the former method. In addition, the soldered layer has poor fatigue strength at high temperatures and is subject to phenomena such as brazing coming off during use, resulting in poor heat resistance.
本発明は超硬合金と鋼材の接合法の改良により上述の如
く熱応力が発生せず、耐熱性が高い複合耐摩部材並びに
その製造コストを大巾に引き下げられる製造法を提供す
るものであり、従来不可能であった大型部品も製造可能
にするものそある。The present invention provides a composite wear-resistant member that does not generate thermal stress as described above and has high heat resistance by improving the joining method of cemented carbide and steel materials, as well as a manufacturing method that can significantly reduce the manufacturing cost. There are things that make it possible to manufacture large parts that were previously impossible.
本発明者らは鋭意研究を重ねた結果、鋼材と超硬合金の
接合において接合面を１〜２ ｍｍの巾で溶解すれば完
全液゛合が可能であり、接合面に中間層を設けることな
く直接接合することが可能であり、この方法による複合
部材は従来のものに較べて性能上も優れていることを見
出したものである。As a result of extensive research, the inventors of the present invention have found that when joining steel materials and cemented carbide, complete liquid coalescence is possible by melting the joint surface in a width of 1 to 2 mm, and that it is possible to form an intermediate layer on the joint surface. It has been discovered that composite members produced by this method have superior performance compared to conventional products.
また、接合面を１〜２ｍｍの巾で溶解させる方法として
、アーク溶接、ＴｉＧ溶接等各種の方法があるが、電子
ビーム、レーザービーム等の高エネルギービ「ムを使用
すれば熱伝導率の関係で当接面の鋼材側を優先的に溶解
し、超硬合金側の当接面はほとんど溶解させないことを
見出したものである。In addition, there are various methods such as arc welding and TiG welding to melt the joint surface in a width of 1 to 2 mm, but if a high-energy beam such as an electron beam or laser beam is used, the thermal conductivity It was discovered that the steel material side of the contact surface is preferentially melted, and the contact surface on the cemented carbide side is hardly melted.
金属の接合方法として電子ビーム等を用いることは特開
昭５６−４５２８８号等に見られるように既に知られて
いるが上記に記されているように接合すべき一方の金属
当接面に電子ビームを照射して溶融接合するか、両方の
当接面を溶融接合するかによって行われているのが特徴
である、。The use of electron beams as a method for joining metals is already known, as seen in Japanese Patent Application Laid-Open No. 56-45288. It is characterized by the fact that it is carried out either by irradiating a beam and melting the joints, or by melting and joining both abutting surfaces.
しかし、超硬合金と鋼材の場合は、電子ビームを超硬合
金側当接面のみに照射しても溶融が不完全であり、鋼材
側当接面のみに照射すれば溶融中が広くなり、超硬合金
側の加熱がないので接合強度が著しく低下する。本発明
は電子ビーム等の高エネルギービームを超硬合金と鋼材
の当接面の両方に当るように照射することが必要であり
、これによって超硬合金側に加熱効果、鋼材側に適度の
溶融層が得られて始めて高強度の接合が可能である。従
ってまた、照射すべき当接面は、焼成め、冷し嵌め、加
圧等によって充分に密着するように当接させておくこと
も重要である。However, in the case of cemented carbide and steel, even if the electron beam is irradiated only on the contact surface on the cemented carbide side, the melting will be incomplete, and if the electron beam is irradiated only on the contact surface on the steel material side, the melting will be wider. Since there is no heating on the cemented carbide side, the bonding strength is significantly reduced. In the present invention, it is necessary to irradiate a high-energy beam such as an electron beam so that it hits both the contact surfaces of the cemented carbide and the steel material, thereby creating a heating effect on the cemented carbide side and moderate melting on the steel material side. A high-strength bond is only possible once the layers are obtained. Therefore, it is also important that the abutting surfaces to be irradiated be brought into sufficient close contact by firing, cold fitting, pressurizing, or the like.
本発明による複合部材は全体を高温にすることもないの
で熱膨−率の差による応力が発生しないので使用時の変
形、割れも発生せず、超硬合金と鋼製部材の直接接合で
あるため疲労強度も高く圧壊強変も高い。また溶解層が
鋼材のみに発生し、超硬合金は溶解させないため、超硬
合金と鋼（Ｆｅ）との反応により脆化層（Ｆｅ８ｗ８ｃ
）が生成しないことも特徴である。The composite member according to the present invention does not require high temperatures as a whole, so stress due to differences in thermal expansion coefficients does not occur, so there is no deformation or cracking during use, and it is a direct bond between cemented carbide and steel members. Therefore, the fatigue strength is high and the crushing strength is also high. In addition, since a dissolution layer occurs only in steel and not in cemented carbide, the reaction between cemented carbide and steel (Fe) causes an embrittlement layer (Fe8w8c).
) is not generated.
次に本発明の実施態様について説明する。Next, embodiments of the present invention will be described.
超硬合金と鋼材が比較的小さい場合、即ち接合面が小さ
い場合は第１図に示す如く当接面の全面に耐摩部品の場
合は接合端面の２０ｍｍ以下の深さで溶明した。普通の
場合５〜１５ｍ＋ｎの溶接面で充分である。第２図は熱
間圧延ロールについての実施例を示す断面図であり、超
硬合金リング５の内側にＳＣＭ２１の如き鋼材リング６
を冷し嵌めにより嵌合し、両者の当接面Ａの端部に電子
ビーム８を照射し、鋼材側当接面に溶融層７を形成せし
め超硬合金リング５と鋼材リング６とを一合している。When the cemented carbide and steel materials are relatively small, that is, when the joint surface is small, melting occurs on the entire surface of the contact surface, as shown in FIG. 1, and in the case of wear-resistant parts, melting occurs at a depth of 20 mm or less from the joint end surface. In normal cases, a welding surface of 5 to 15 m+n is sufficient. FIG. 2 is a sectional view showing an embodiment of a hot rolling roll, in which a steel ring 6 such as SCM 21 is placed inside a cemented carbide ring 5.
The cemented carbide ring 5 and the steel ring 6 are fitted together by cold fitting, and an electron beam 8 is irradiated to the end of the abutment surface A of both to form a molten layer 7 on the abutment surface on the steel side. It matches.
このようにすれば最も応力のか−る中央部は超硬合金と
鋼材との直接接合であり接合層によるキレンの発生の心
配がなく、全体として疲労１度も高くなる。In this way, the central part where the most stress is applied is a direct bond between the cemented carbide and the steel material, and there is no fear of generation of cracks due to the bonding layer, resulting in an increase in fatigue as a whole.
また接合すべき鋼製部材としては超硬合金との接合面は
密着性、歪み吸収の点で軟質の方がよく、炭素量が０，
５重量％以下の鋼材が望ましく、接合面以外は浸炭、焼
き入れによって硬度を上げて耐摩耗性を増大した方が、
圧延ロール等の場合好ましい結果が得られん。In addition, for steel members to be joined, it is better for the joint surface with the cemented carbide to be soft in terms of adhesion and strain absorption, and the carbon content is 0,
A steel material with a content of 5% by weight or less is desirable, and it is better to increase the hardness and wear resistance by carburizing and quenching other than the joint surfaces.
Favorable results cannot be obtained with rolling rolls, etc.
これは溶接面で急冷による硬度上昇ならびに脆化を防止
することができ、一方工具として使用する場合、耐摩耗
性が要求され部分ではＨＲｃ ５０−６０程度にするこ
とができるからである。This is because it is possible to prevent hardness increase and embrittlement due to rapid cooling on the welding surface, and on the other hand, when used as a tool, wear resistance is required and the HRc can be set to about 50-60.
次に接合面に高エネルギービームを照射して当接面を部
分的に溶融していく場合、鋼材が溶解し、鋼材中の炭素
と酸素が反応してガスを発生する場合があり、この場合
は鋼製部材を予め加工する時に脱ガス用の溝を設けると
効果的であり接合層中のブローホールを除去することが
可能である。第３図は上記の圧延ロールの場合の鋼製部
材の外観図と、その１部拡大断面図であり、８が溶接ビ
ーム先端部に位置する溝であり、９，９′が接合溶融層
内から発生するガスを外部に排出するためのガス抜き溝
である。Next, when a high-energy beam is irradiated to the joint surface to partially melt the contact surface, the steel material may melt and the carbon and oxygen in the steel material may react and generate gas. It is effective to provide degassing grooves when processing the steel member in advance, and it is possible to remove blowholes in the bonding layer. Figure 3 is an external view of the steel member in the case of the above-mentioned rolling roll, and a partially enlarged sectional view thereof, where 8 is the groove located at the tip of the welding beam, and 9 and 9' are inside the bonded molten layer. This is a gas vent groove for discharging gas generated from the gas to the outside.
本発明は超硬合金部材と複数個の鋼製部材とを複合する
場合も有効である。The present invention is also effective when a cemented carbide member and a plurality of steel members are combined.
圧延ロールやスリッターの場合、超硬合金リングと鋼材
リングの中間に別種の鋼材リング、鋳鉄リングを介在さ
せた複合部材が要求されることが多い。その１つは、超
硬合金リングの内側に３００°Ｃまでの熱膨張係数が３
〜］ ＯＸＩ Ｏｃｍ／’Ｃの鋼材を接合し、その鋼材
リングの内側に中間の鋼材リングより耐摩耗性の鋼材リ
ングを接合する場合であり、もう１つは、超硬合金リン
グの内側に比較的軟質で熱膨張を吸収し得る弾性限５０
ｋｇ／ＩＩＩＬｌ］２以下の鋳鉄リングを接合し、該鋳
鉄の内側に鋼材リングを接合する場合であるが、いずれ
の場合においても、超硬合金部材と中間に接合すべき鋼
材リング又は鋳鉄リングの接合に上述の本発明の方法を
重要した結果、従来の方法による３層複合のロールやス
リッターに較べて寿命の長いものが得られた。In the case of rolling rolls and slitters, a composite member is often required in which a different type of steel ring or cast iron ring is interposed between a cemented carbide ring and a steel ring. One is that the inside of the cemented carbide ring has a thermal expansion coefficient of 3 up to 300°C.
~] OXI Ocm/'C steel is joined, and a steel ring that is more wear resistant than the middle steel ring is joined to the inside of the steel ring. Elastic limit of 50 which is soft and can absorb thermal expansion
kg/IIILl] 2 or less, and a steel ring is joined to the inside of the cast iron. In either case, the steel ring or cast iron ring to be joined to the cemented carbide member in the middle is As a result of using the above-described method of the present invention for bonding, a product with a longer life than a three-layer composite roll or slitter produced by the conventional method was obtained.
上記熱膨張係数の特定の材料としてはＦ ｅ −Ｎ ｉ
合金、あるいはコバール等でもよい。特に熱の影響を受
は易い使用条件では有益である。The specific material with the above thermal expansion coefficient is F e −N i
An alloy, Kovar, etc. may be used. This is particularly useful under conditions of use that are easily affected by heat.
周当接面に照射する高エネルギービームとしては電子ビ
ーム、レーザービームが接合精度の上で好ましく、鋼材
、超硬合金の酸化防止のため非酸化性雰囲気又は真空中
が必要であり、特にガス抜きの点で真空中が望ましい。As the high-energy beam irradiated to the circumferential abutment surface, electron beams and laser beams are preferred from the viewpoint of joining accuracy, and in order to prevent oxidation of steel materials and cemented carbide, non-oxidizing atmosphere or vacuum is required, especially for degassing. From this point of view, it is preferable to use a vacuum.
一実施例
外径１５９ｍ／、内径８７印、厚み７０ｍｍの第２図の
如きモルガンロールにおいて、超硬合金部分を外径１５
９ｍｍ’、内径１２３ｍｍ’に加工し、鋼材（ＳＣＭ２
１）を外径１２３ｍｍ’、内径８７ｍｍ’に加工した。In a Morgan roll as shown in Fig. 2, which has an exception diameter of 159 m, an inner diameter of 87 marks, and a thickness of 70 mm, the cemented carbide part has an outer diameter of 15 mm.
9mm', inner diameter 123mm', steel material (SCM2
1) was processed to have an outer diameter of 123 mm' and an inner diameter of 87 mm'.
この鋼材リングの外周面のみを溶成しないように保護し
て、内周および上下面を溶成焼入れし、鋼材面をＨＲｃ
５５とした。なお鋼材リングは溶成焼入れする前に第３
図に示す如く溝とガス抜き溝を設けておいた。Only the outer peripheral surface of this steel ring is protected from melting, and the inner peripheral and upper and lower surfaces are melt-quenched, and the steel surface is HRc.
It was set at 55. In addition, the steel ring is heated in the third stage before melting and quenching.
As shown in the figure, grooves and gas vent grooves were provided.
次に、超硬合金リングと溶成焼入れした鋼材リングとを
嵌合代０．０１５ｍｍにて冷し嵌めし、両者を当接密着
せしめた。この当接面Ａの端面円周状に、電子ビームを
、電圧６０Ｗ１電流９０ｍｍＡ、速度８００ｍｍ／＆真
空の条件でビームが、超硬合金側と鋼材側当接面に当る
ように照射した。得られたロールの鋼材側に１．０〜１
．５Ｍの巾、深さ１５ｍｍの溶接層が見られ、超硬合金
側当接面は全熱溶解することなく両者は完全に接合して
いた。次にこのロールの圧環強度を測定したところ、５
１．３トンであった。なお従来のロー付は法によって製
造した同寸法の複合ロールの圧環強度は２７トンであり
約２倍の強度であった。以上述べた如く、本発明により
、密着強度が強く、接合後の応力が存在しなり１耐摩耗
部材カー事八度高くしかも安価に製造することカニｄｊ
来た。Next, the cemented carbide ring and the melt-quenched steel ring were cold-fitted with a fitting allowance of 0.015 mm to bring them into close contact. An electron beam was applied to the circumference of the end surface of this contact surface A under conditions of a voltage of 60 W, a current of 90 mmA, and a speed of 800 mm/vacuum so that the beam hit the contact surfaces on the cemented carbide side and the steel side. 1.0 to 1 on the steel side of the obtained roll
．． A welding layer with a width of 5M and a depth of 15mm was observed, and the contact surface on the cemented carbide side was not completely melted and the two were completely joined. Next, when the radial crushing strength of this roll was measured, it was found to be 5.
It was 1.3 tons. Note that the radial crushing strength of a composite roll of the same size manufactured by the conventional brazing method was 27 tons, which is about twice the strength. As described above, the present invention has strong adhesion strength, no stress after joining, and makes it possible to manufacture wear-resistant members at a high cost and at a low cost.
It's here.
本発明を利用し得る範囲として番よ超硬合金と鋼材又は
鋳鉄部材とを接合した複合工具のすべてして適用可能で
あり、熱間圧延ローノν、鋼材切断用スリッターは勿論
、ドリル、ノζンチ、ノくイト、ホブ等の工具にも適用
可能である。The present invention can be applied to all types of composite tools that join cemented carbide and steel or cast iron members, including hot rolling rollers, slitters for cutting steel materials, drills, and other tools. It can also be applied to tools such as punches, pickets, hobs, etc.
第１図は本発明の詳細な説明する超硬合金円柱と鋼製円
柱の複合部材の断面図、第２図（土木発明の実施例の１
つを示す複合ロールの断面図、第３図は同様本発明の実
施例にふ・ける鋼材１ノンク゛の外観図（イ）とその一
部所面図（ロ）である。
代理入 弁理士 上 代 豹 司Ｏ
７１図
７２図
（イ） （ロ）手
続補正書
昭和５７年７月計日
１、事件の表示
昭和５６年特許願 第１３５９４８ 号２、発明の名
称
複合耐摩部材及びその製造法
８、補正をする者
事件との関係 特許出願人
住所 大阪市東区北浜５丁目１５番地名称（２１
８）住友電気工業株式会社
社長 用上哲部
東代理人
住所 大阪市此花区島屋１丁目１番３号住友電
気工業株式会社内
６、補正の対象
願書及び明細書中発明の名称の欄、明細書中特許請求の
範囲の欄、発明の詳細な説明の欄、図面の簡単な説明の
欄及び図面
７、補正の内容
（１）願書及び明細書中発明の名称を「複合耐摩部材」
に訂正する。
（２）明細書中特許請求の範囲を別紙の通り訂正する。
・（３）同書第４頁２行目
「及びその製造法」を削除する。
（４）同書同頁１５〜１６行
ｒ Ｆｅ−Ｎｉ−５ｉ−Ｃ系の」を削除する。
（５）同書第５頁１３〜１４行
「並びに ・・−・られる製造法」を削除する。
（６）同書第７頁１２行目
「溶解させないため」を「液相が発生するが完全溶解し
ないため」に訂正する。
（７）同書同頁１４行と１５行の間に次の文章を追加挿
入する。
「超硬合金と鋼を溶接する試みは゛過去に検討されてい
るが、現在実用化されていない。これは超硬合金が圧縮
強度に対しては強いが引張り強度に弱く溶接時に生ずる
引張り応力によりキレツが発生するために実用的な接合
ができなかったためである。又、この溶接割れを防ぐた
め超硬合金と鋼の当接面にＮｉ、 Ｃｏ等の薄い金属板
を挿入する方法はすでに検討されている。しかしながら
この場合は熱伝導率の差があるに均等な接合が行われず
強度。
も弱い。本発明者らは種々検討の結果、キレツも発生せ
ず強固な場合の複合耐摩部材を見出すことができた。」
（８）同書第１Ｏ頁１１行目
「とじては」と「Ｆｅ−Ｎｉ合金」の間にｒＮｉ、Ｃ。
合金、」を追加挿入する。
（９）同書同頁１８行と１４行の間に次の文章を挿入す
る。
「複数個の部材を溶接する場合は超硬合金との中間の鋼
材リングをやはり直接溶接し、溶接時に発生する応力を
中間材の偏形により熱膨張差を吸収した後中間材と鋼を
接合するのが望ましい。この場合には超硬と鋼の間に薄
い金属薄板を挿入することにより強固な結合が得られる
。さらに本発明の実施の態様によっては、高エネルギー
ビームが当る部分のみ低炭素合金で良い。従って接合さ
せない部分を浸炭、焼入することによって高強度、高耐
摩耗性を有する複合耐摩耗部材を得ることができる。」
００同書同頁１９行目
「実施例」を「実施例１」に訂正する。
０υ同書第１１頁１行目
「おいて、」と「超硬合金」の間に「ＷＣ量が８５％の
」を挿入する。
Ｑ２２同書同２行目
「鋼材」を「炭素量が０．１５％の鋼材」に訂正する。
（１３）舎弟第１２頁７行と８行の間に次の文章を挿入
する。
「実施例２
８５ ｗｔ％ＷＣと１５ｗｔ％のＣｏ合金からなる超硬
リング１１ ’（外径φ４ Ｑ Ｑ Ｍ 、肉厚３２０
φ憇、厚み２０Ｍ）の内側にＦｅ −４０％Ｎｉ合金リ
ング１２（外径３２０φ、内径２８０φ、厚み２０飢）
、さらに炭素量０．４５％のＳ、ＣＭ４４Ｑのリング１
３ （２８０φ、内径８０φ 厚み２０ＩｕＬ）を第
４図に示す如く構成した鋼板剪断用サイドリーマの製造
において、それぞれのリングをｏ、ｏａａｍの冷し嵌め
にてそれぞれ当接密着せしめた。この当接面Ｂの端面を
円周状に電子ビームを照射して溶接を行った。
電子ビーム条件は１５０Ｗ；１０ｎＡ、速度５００１１
１％／分にて真空中である。更に当接面Ｃの端面を円周
状に同条件で溶接した。得られたサイドスリッターは完
全接合され２ｔｒｕｎ厚の鋼板の剪断を行ったところ従
来のロー付は接合品よりはるかに強かった。」０４回舎
弟１２頁１３行と１４行の間に次の文章を追加する。
「第４図、第５図は本発明の実施例のサイドスリッター
の上面図と正面断面図を示す。」Ｑ句同書第１２頁１６
行の次に下記の文章を追加する。
ｒＢ、Ｃ：当接面、ｌｌ：超硬リング、１２：合金リン
グ、１３ ：鋼リング」
（至）図面第４図、第５図を別紙の通り追加する。
特許請求の範囲
（１）超硬合金と鋼製部材からなる複合耐摩部材におい
て、超硬合金と鋼製部材が直接当接しており、当接面の
鋼製部材の一部または全面が高エネルギービームによっ
て、スリット状に溶融凝固され超硬合金当接面に溶着さ
れていることを特徴とする複合耐摩部材。
（２）超硬合金に当接する鋼製部材が炭素量０．５重量
％以下であり、当接面以外は浸炭焼入れされ高硬度、耐
摩耗性を附与されていることを特徴とする特許請求の範
囲第（１）項記載の複合耐摩部材。
（３）高エネルギービームが電子ビーム゛またはレーザ
ービームであることを特徴とする特許請求の範囲第（１
）項記載の複合耐摩部材。
第４図
１１２Fig. 1 is a sectional view of a composite member of a cemented carbide cylinder and a steel cylinder, which explains the present invention in detail, and Fig. 2 (1 of the embodiments of the civil engineering invention).
FIG. 3 is a cross-sectional view of a composite roll showing one example of the present invention; FIG. Represented Patent Attorney Tsukasa Hyou 71 Figure 72 (a) (b) Procedural amendment dated July 1980 1, Indication of the case 1981 Patent Application No. 135948 2, Name of the invention Composite wear-resistant member and its manufacturing method 8, and its relationship to the case of the person making the amendment Patent applicant address 5-15 Kitahama, Higashi-ku, Osaka Name (21
8) President of Sumitomo Electric Industries Co., Ltd. Tetsubu Higashi Agent Address: 6, Sumitomo Electric Industries Co., Ltd., 1-1-3 Shimaya, Konohana-ku, Osaka City, Application to be amended, column for the name of the invention in the specification, and details Claims column, Detailed explanation of the invention column, Brief explanation of drawing column and Drawing 7, Contents of amendments (1) Change the name of the invention in the application and specification to "composite wear-resistant member"
Correct. (2) The claims in the specification are corrected as shown in the attached sheet.・(3) Delete "and its manufacturing method" on page 4, line 2 of the same book. (4) Same book, same page, lines 15-16 r "Fe-Ni-5i-C system" is deleted. (5) On page 5 of the same book, lines 13-14, ``Production method for...'' shall be deleted. (6) On page 7, line 12 of the same book, "to prevent dissolution" is corrected to "because a liquid phase is generated but not completely dissolved." (7) Add the following sentence between lines 14 and 15 on the same page of the same book. ``Attempts to weld cemented carbide and steel have been considered in the past, but they have not been put to practical use at present.This is because cemented carbide is strong in compressive strength but weak in tensile strength due to the tensile stress generated during welding. This was because it was not possible to make a practical joint due to the occurrence of cracks.Also, in order to prevent this weld cracking, a method of inserting a thin metal plate such as Ni or Co into the contact surface of the cemented carbide and steel has already been considered. However, in this case, due to the difference in thermal conductivity, uniform bonding is not achieved and the strength is also weak.As a result of various studies, the present inventors have developed a composite wear-resistant member that does not cause cracks and is strong. (8) In the same book, page 1O, line 11, between ``tojiteha'' and ``Fe-Ni alloy,'' there is rNi, C. Alloy, insert additional. (9) Insert the following sentence between lines 18 and 14 on the same page of the same book. "When welding multiple parts, the intermediate steel ring with the cemented carbide is directly welded. The stress generated during welding is absorbed by the difference in thermal expansion by the deformation of the intermediate material, and then the intermediate material and steel are joined. In this case, a strong bond can be obtained by inserting a thin metal sheet between the cemented carbide and the steel.Furthermore, depending on the embodiment of the present invention, only the part that is hit by the high-energy beam is made of low-carbon material. An alloy may be used. Therefore, by carburizing and quenching the parts that are not to be joined, a composite wear-resistant member with high strength and high wear resistance can be obtained." 00 Ibid. Correct to “Example 1”. 0υInsert "WC content is 85%" between "put" and "cemented carbide" in the first line of page 11 of the same book. Q22 In the second line of the same document, "steel" is corrected to "steel with a carbon content of 0.15%." (13) Insert the following sentence between lines 7 and 8 on page 12 of Shutei. "Example 2 Carbide ring 11' made of 85 wt% WC and 15 wt% Co alloy (outer diameter φ4 Q Q M, wall thickness 320
Fe-40%Ni alloy ring 12 (outer diameter 320φ, inner diameter 280φ, thickness 20mm) inside the
, and ring 1 of S, CM44Q with a carbon content of 0.45%
3 (280φ, inner diameter 80φ, thickness 20IuL) in the manufacture of a side reamer for shearing a steel plate configured as shown in FIG. 4, the rings were brought into close contact with each other by O and OAAM cold fitting. Welding was performed by irradiating the end face of this contact surface B with an electron beam in a circumferential manner. Electron beam conditions are 150W; 10nA, speed 50011
Under vacuum at 1%/min. Furthermore, the end face of the contact surface C was welded circumferentially under the same conditions. The obtained side slitter was completely joined, and when a 2-trun thick steel plate was sheared, it was much stronger than the conventional soldered product. ” Add the following sentence between lines 13 and 14 on page 12 of the 04th edition. "Figures 4 and 5 show a top view and a front sectional view of a side slitter according to an embodiment of the present invention." Q, Ibid., p. 12, 16
Add the following text after the line. rB, C: Contact surface, ll: Carbide ring, 12: Alloy ring, 13: Steel ring” (To) Add Figures 4 and 5 as shown in the attached sheet. Claims (1) In a composite wear-resistant member made of a cemented carbide and a steel member, the cemented carbide and the steel member are in direct contact with each other, and a part or the entire surface of the steel member on the contact surface is exposed to high energy. A composite wear-resistant member characterized by being melted and solidified into a slit shape by a beam and welded to a cemented carbide contact surface. (2) A patent characterized in that the steel member that contacts the cemented carbide has a carbon content of 0.5% by weight or less, and is carburized and quenched except for the contact surface, giving it high hardness and wear resistance. A composite wear-resistant member according to claim (1). (3) Claim No. 1 characterized in that the high-energy beam is an electron beam or a laser beam.
) The composite wear-resistant member described in item 2. Figure 4 112
Claims (1)
て、超硬合金と鋼製部材が直接当接しており、当接面の
鋼製部材の一部または全面が高エネルギービームによっ
て、スリット状に溶融凝固され超硬合金当接面に溶着さ
れていることを特徴とする複合耐摩部材。 （２）超硬合金リングの内側に鋼製リングが当接され、
当接面の厚み方向両端の２（Ｈ＋＋ｍ以下の鋼製リング
当接面が溶融固着された熱間圧延ロールであることを特
徴とする特許請求の範囲第（１）項記載の複合耐摩部材
。 （３）超硬合金に当接する鋼製部材が炭素量０．５重量
％以下であり、当接面以外は浸炭焼入れされ高硬度、耐
摩耗性を附与されていることを特徴とする特許請求の範
囲第（１）項、第（２）項記載の複合耐摩部材。 （４）超硬合金リングの内側に３００°Ｃまでの熱膨張
係数が３〜ｌ０ＸＩＯ’ａｎ／℃である鋼材リング又は
弾性限５０ｋｇ／ｆｎｍ”以下の鋳鉄リングが直接当接
され、該鋼材リング又は鋳鉄リングの内側に前記リング
よりも耐摩耗性の高い鋼材リングが直接当接されており
、超硬合金と第一の鋼材リングとの当接面の鋼材側の一
部また全部がスリット状に高エネルギービームによって
溶融凝固により溶着されており、第一、第二のリングの
当接面も高エネルギービームによって溶接されているこ
とを特徴とする熱間圧延用ロールまたはスリソターエ具
用の複合耐摩部材。 （５）超硬合金と鋼製部材からなる複合耐摩部材の製造
において、超硬合金と鋼製部材を嵌合なとで直接密着さ
せ、その当接面端部の超硬合金と鋼製部材の両方に当る
ように高エネルギー・ビームを非酸化性雰囲気又は真空
中で照射して、鋼製部材の当接面の一部または全面を溶
融、凝固させ超硬合金と溶接接合することを特徴とする
複合耐摩部材の製造法。 （６）特許請求の範囲第（５）項において、鋼製部材の
超硬合金との当接面にガス抜き用溝を設は両者を当接し
高エネルギービームで照射して、接合面内のガスを除き
ながら溶接することを特徴とする複合耐摩部材の製造法
。 （７）高エネルギービームが電子ビームまたはレーザー
ビームであることを特徴とする特許請求の範囲第（５）
項、第（６）項記載の複合耐摩部材の製造法。 （８）超硬合金リングの内側に、８００℃までの熱膨張
係数が８〜ＩＯＸＩＯ−６ｃｍ／’Ｃである鋼材リング
または弾性限が５０１ｍｍ”以下の鋳鉄リングを当接密
着させ、その当接面端部の超硬合金と鋼材の両方に当る
ように高エネルギービームを非酸化性雰囲気又は真空中
で照射して、鋼材リングの当接面の一部または全面を溶
融、凝固することによって超硬合金と溶接接合し、更に
該鋼材リングの内側に高硬度、耐摩耗性の鋼材リングを
当接し、当接面を高エネルギービームによって溶接接合
することを特徴とする耐摩耗部材の製造法。[Claims] (]) In a composite wear-resistant member made of a super superalloy and a steel member, the cemented carbide and the steel member are in direct contact with each other, and a part or the entire surface of the steel member on the contact surface is A composite wear-resistant member characterized by being melted and solidified into a slit shape using a high-energy beam and welded to a cemented carbide contact surface. (2) A steel ring is brought into contact with the inside of the cemented carbide ring,
The composite wear-resistant member according to claim 1, characterized in that the abutment surfaces of steel rings of 2 (H++m or less) at both ends in the thickness direction of the abutment surfaces are hot-rolled rolls that are fused and fixed. (3) A patent characterized in that the steel member that contacts the cemented carbide has a carbon content of 0.5% by weight or less, and is carburized and quenched except for the contact surface, giving it high hardness and wear resistance. Composite wear-resistant member according to claims (1) and (2). (4) A steel ring having a thermal expansion coefficient of 3 to 10XIO'an/°C up to 300°C inside the cemented carbide ring. Alternatively, a cast iron ring with an elastic limit of 50 kg/fnm or less is brought into direct contact, and a steel ring with higher wear resistance than the ring is brought into direct contact with the steel ring or the inside of the cast iron ring. Part or all of the steel material side of the contact surface with the first steel ring is welded in a slit shape by melting and solidifying with a high-energy beam, and the contact surfaces of the first and second rings are also welded with a high-energy beam. A composite wear-resistant member for hot rolling rolls or slithering tools, characterized by A high-energy beam is irradiated in a non-oxidizing atmosphere or vacuum so as to hit both the cemented carbide and the steel member at the end of the contact surface, and the steel member is brought into contact with the steel member. A method for manufacturing a composite wear-resistant member, characterized by melting and solidifying a part or the entire surface of the contact surface and welding it to a cemented carbide. (6) In claim (5), A method for manufacturing composite wear-resistant parts, which is characterized by providing a gas venting groove in the contact surface with the hard metal, and then welding the two parts by irradiating them with a high-energy beam to remove gas from the joint surface. ( 7) Claim No. 5, characterized in that the high-energy beam is an electron beam or a laser beam.
A method for manufacturing a composite wear-resistant member according to item (6). (8) A steel ring with a thermal expansion coefficient of 8 to IOXIO-6cm/'C up to 800℃ or a cast iron ring with an elastic limit of 501mm" or less is brought into close contact with the inside of the cemented carbide ring. A high-energy beam is irradiated in a non-oxidizing atmosphere or vacuum so as to hit both the cemented carbide and steel at the end of the surface, melting and solidifying part or the entire contact surface of the steel ring. A method for producing a wear-resistant member, which comprises welding and joining a hard metal, further abutting a high-hardness, wear-resistant steel ring on the inside of the steel ring, and welding and joining the contact surfaces using a high-energy beam.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56135943A JPS5838682A (en) | 1981-08-28 | 1981-08-28 | Composite abrasion resistance member and its manufacture |
| GB08224689A GB2109730B (en) | 1981-08-28 | 1982-08-27 | Composite wear resisting member and the method for producing the same |
| DE19823232018 DE3232018A1 (en) | 1981-08-28 | 1982-08-27 | WEAR-RESISTANT COMPONENT AND METHOD FOR THE PRODUCTION THEREOF |
| KR8203888A KR890000927B1 (en) | 1981-08-28 | 1982-08-28 | Composite wear resisting member and the method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56135943A JPS5838682A (en) | 1981-08-28 | 1981-08-28 | Composite abrasion resistance member and its manufacture |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57117422A Division JPS6018485B2 (en) | 1981-08-28 | 1982-07-05 | Composite cemented carbide hot rolling roll |
| JP57117421A Division JPS5838683A (en) | 1981-08-28 | 1982-07-05 | Manufacture of composite abrasion resistance member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5838682A true JPS5838682A (en) | 1983-03-07 |
Family
ID=15163465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56135943A Pending JPS5838682A (en) | 1981-08-28 | 1981-08-28 | Composite abrasion resistance member and its manufacture |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5838682A (en) |
| DE (1) | DE3232018A1 (en) |
| GB (1) | GB2109730B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602648A (en) * | 1983-05-13 | 1985-01-08 | サントレ−ド・リミテイド | Composite body and manufacture |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011112725A1 (en) * | 2011-09-07 | 2013-03-07 | Steel Automotive GmbH | Component, in particular for the wiper mechanism of a motor vehicle or commercial vehicle, and associated manufacturing method |
| CN103817150B (en) * | 2014-02-26 | 2015-07-01 | 湖南天益高技术材料制造有限公司 | Gradient-structure hard alloy roll collar and manufacturing process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772749A (en) * | 1969-02-14 | 1973-11-20 | Fagersta Bruks Ab | Composite wheel |
| JPS54141350A (en) * | 1978-04-27 | 1979-11-02 | Komatsu Mfg Co Ltd | Disk insertion electron beam welding |
| JPS5645288A (en) * | 1979-09-21 | 1981-04-24 | Toyota Motor Corp | Joining method of metal |
| JPS5645397A (en) * | 1979-09-18 | 1981-04-25 | Sudo Hajime | Manufacture of slender flat boarddlike composite edge tool and tool |
-
1981
- 1981-08-28 JP JP56135943A patent/JPS5838682A/en active Pending
-
1982
- 1982-08-27 GB GB08224689A patent/GB2109730B/en not_active Expired
- 1982-08-27 DE DE19823232018 patent/DE3232018A1/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772749A (en) * | 1969-02-14 | 1973-11-20 | Fagersta Bruks Ab | Composite wheel |
| JPS54141350A (en) * | 1978-04-27 | 1979-11-02 | Komatsu Mfg Co Ltd | Disk insertion electron beam welding |
| JPS5645397A (en) * | 1979-09-18 | 1981-04-25 | Sudo Hajime | Manufacture of slender flat boarddlike composite edge tool and tool |
| JPS5645288A (en) * | 1979-09-21 | 1981-04-24 | Toyota Motor Corp | Joining method of metal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602648A (en) * | 1983-05-13 | 1985-01-08 | サントレ−ド・リミテイド | Composite body and manufacture |
| JPH0525939B2 (en) * | 1983-05-13 | 1993-04-14 | Santrade Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2109730A (en) | 1983-06-08 |
| GB2109730B (en) | 1985-11-06 |
| DE3232018A1 (en) | 1983-04-14 |
| DE3232018C2 (en) | 1987-10-29 |
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