JPS62134193A - Composite powder welding material for building up by welding - Google Patents
Composite powder welding material for building up by weldingInfo
- Publication number
- JPS62134193A JPS62134193A JP27560685A JP27560685A JPS62134193A JP S62134193 A JPS62134193 A JP S62134193A JP 27560685 A JP27560685 A JP 27560685A JP 27560685 A JP27560685 A JP 27560685A JP S62134193 A JPS62134193 A JP S62134193A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- welding
- layer
- welding material
- ceramic
- 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.)
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Classifications
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
- B23K35/327—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C comprising refractory compounds, e.g. carbides
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、プラズマ溶接法により、高温部材の表面に、
耐熱・耐圧縮変形・耐摩耗性にすぐれた肉盛層を形成す
るための金属粉末とセラミック粉末とからなる複合粉末
溶接材に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides a method for applying plasma welding to the surface of a high-temperature member.
This invention relates to a composite powder welding material made of metal powder and ceramic powder for forming a built-up layer with excellent heat resistance, compression deformation resistance, and wear resistance.
耐熱・耐圧縮変形・耐摩耗用材料として、例えば、２５
Ｃｒ −２ＯＮ ｉ −Ｆ ｅ、２５Ｃｒ −３５Ｎ
ｉ −Ｆｅ、２８Ｃｒ−２ＯＮｉ−２０Ｃｏ−４Ｗ−Ｆ
ｅ、または３０Ｃｒ−２ＯＮｉ−４０Ｃｏ−２Ｍｏ−Ｆ
ｅ等の耐熱鋼が賞月されている。これらの耐熱鋼製部材
は、約１１００℃付近までの温度において優れた耐久性
を示す。As a material for heat resistance, compression deformation resistance, and wear resistance, for example, 25
Cr-2ON i-Fe, 25Cr-35N
i-Fe, 28Cr-2ONi-20Co-4W-F
e, or 30Cr-2ONi-40Co-2Mo-F
Heat-resistant steels such as E have been awarded. These heat-resistant steel members exhibit excellent durability at temperatures up to around 1100°C.
しかしながら、上記耐熱鋼は、スラブ加熱炉の炉床金物
（スキントレール、スキントポタン等）等のように、１
１００℃を越え、１２００〜１３００℃の高温酸化雰囲
気に曝され、かつ重量物であるスラブの負荷と、スラブ
による摩耗とが加わる条件下に使用される部材としては
、必ずしも十分でなく、早期に部材表面の損耗・劣化が
進み易い。このような部材の損耗・劣化は、これに当接
する被加熱処理材（スラブ）の表面品質を損なう原因と
なり、またそれを防止するには炉床部材の早期の取替・
修復作業を必要とする等、炉操業の安定・円滑性を阻害
する。このため、上記の高温用材料として、１２００℃
を越える高温環境下で、よりすぐれた耐圧縮強度、耐酸
化性および耐摩耗性等を保証する新たな材料の開発が強
く要請されている。However, the above-mentioned heat-resistant steel is difficult to use, such as hearth hardware (skin trail, skin topotan, etc.) of slab heating furnaces.
It is not necessarily sufficient for a member to be used under conditions where it is exposed to a high-temperature oxidizing atmosphere of 1200 to 1300°C, exceeding 100°C, and is subject to the load of a heavy slab and wear due to the slab. Wear and deterioration of the component surface tends to progress. Wear and deterioration of such parts can cause damage to the surface quality of the material to be heated (slab) that comes into contact with them, and to prevent this, it is necessary to replace or replace the hearth parts at an early stage.
Requires repair work, etc., which impairs the stability and smoothness of furnace operation. For this reason, as the above-mentioned high temperature material, 1200℃
There is a strong demand for the development of new materials that guarantee superior compressive strength, oxidation resistance, and abrasion resistance under high-temperature environments exceeding
〔問題点を解決するための手段および作用〕本発明は、
上記高温用部材の表面に保護層として、耐圧縮強度、耐
酸化性、および耐摩耗性等にすくれた肉盛層を形成する
ことにより丸その耐久性を改善しようとするものである
。[Means and effects for solving the problems] The present invention has the following features:
The purpose is to improve the durability of the round shape by forming a built-up layer with good compressive strength, oxidation resistance, abrasion resistance, etc. as a protective layer on the surface of the above-mentioned high temperature member.
本発明に係る溶接肉盛用複合粉末溶接材は、金属粉末と
、セラミック粉末との混合粉末であって、第１の複合粉
末溶接材は、
金属粉末が、Ｃ：０．１５％以下、Ｓｉ：１．５％以下
、Ｍｎ：２．０％以下、Ｃｒ ： ２５．０〜３２．０
％、Ｎ ｉ ： １０．０〜２５．０％、Ｃｏ：２５．
０〜４５．０％、および所望によりＭｏ：３．０〜１０
，０％を含有し、残部は実質的にＦｅからなる成分組成
を有し、混合粉末に占めるセラミック粉末の配合量は３
０〜７０％であり、
混合粉末の粒度は５０〜２５０メッシュであること、を
特徴とする。The composite powder welding material for weld build-up according to the present invention is a mixed powder of a metal powder and a ceramic powder, and the first composite powder welding material contains: C: 0.15% or less, Si : 1.5% or less, Mn: 2.0% or less, Cr: 25.0 to 32.0
%, Ni: 10.0-25.0%, Co: 25.
0 to 45.0%, and optionally Mo: 3.0 to 10
,0%, and the remainder is substantially Fe, and the amount of ceramic powder in the mixed powder is 3.
0 to 70%, and the particle size of the mixed powder is 50 to 250 mesh.
また、本発明に係る第２の複合粉末溶接材は、金属粉末
が、Ｃｒ ： ２０．０〜６０．０％、残部は実質的に
Ｃｏからなる成分組成を有し、
混合粉末に占めるセラミック粉末の配合量は３０〜７０
％であり、
混合粉末の粒度は５０〜２５０メツシユであること、を
特徴とする。Further, the second composite powder welding material according to the present invention has a composition in which the metal powder contains Cr: 20.0 to 60.0% and the remainder substantially consists of Co, and the ceramic powder accounts for the mixed powder. The blending amount is 30-70
%, and the particle size of the mixed powder is 50 to 250 mesh.
なお、金属粉末の成分組成を示す％、およびセラミック
粉末の配合量を示す％は、いずれも重量％である。Note that % indicating the component composition of the metal powder and % indicating the blending amount of the ceramic powder are both % by weight.
本発明の肉盛用溶接材は粉末体であるので、肉盛層の形
成には、プラズマ溶接法が適用される。Since the welding material for build-up of the present invention is a powder, a plasma welding method is applied to form the build-up layer.
本発明の複合粉末溶接材を用いてプラズマ溶接により単
層または多層盛りを行って形成される肉盛層は、金属粉
末が溶融して与えられる所定成分組成の合金がマトリッ
クスとなり、そのマトリックス中にセラミック粒子が分
散相として均一に混在してなる「金属−セラミック粒子
」複合組織を有する。The build-up layer formed by plasma welding using the composite powder welding material of the present invention is a single layer or multi-layer build-up. An alloy of a predetermined composition obtained by melting metal powder serves as a matrix. It has a "metal-ceramic particle" composite structure in which ceramic particles are uniformly mixed as a dispersed phase.
その肉盛層は、後記実施例にも示されるように、従来の
耐熱鋼に比し、１２００℃以上の高温域における耐圧縮
強度や耐酸化性にすぐれており、また硬度が高く、良好
耐摩耗性を備えている。しかも、肉盛層と基材表面との
界面は、肉盛溶接時に供給される十分な量の溶接熱によ
り強固な融着結合関係を形成しており、１２００℃の高
温域においても、高い接着強度を失うことがない。As shown in the examples below, the build-up layer has superior compressive strength and oxidation resistance in the high temperature range of 1200°C or higher, and has high hardness and good resistance compared to conventional heat-resistant steel. It has abrasive properties. Moreover, the interface between the overlay layer and the base material surface forms a strong fusion bond due to the sufficient amount of welding heat supplied during overlay welding, and has high adhesion even in the high temperature range of 1200°C. Never loses strength.
本発明に係る複合粉末溶接材の金属粉末の成分組成限定
理由を、まず第１の発明について説明すると、次のとお
りである。The reasons for limiting the composition of the metal powder of the composite powder welding material according to the present invention will be explained below with reference to the first invention.
Ｃ：０．１５％以下
Ｃは不純物元素であり、マトリックス金属を高融点に保
つために、上限を０．１５％とする。C: 0.15% or less C is an impurity element, and in order to keep the matrix metal at a high melting point, the upper limit is set to 0.15%.
Ｓ ｉ ： １．５％以下
Ｓｔは溶接肉盛時に形成される溶融金属の流動性の確保
および脱酸効果の点から、多い程よい。S i : 1.5% or less The more St is, the better, from the viewpoint of ensuring the fluidity of the molten metal formed during weld build-up and deoxidizing effect.
しかし、その反面、溶融金属中の脱酸生成物（ＳｉＯ□
）の残存量が増加し、マトリックス金属の清浄度が損な
われるので、１．５％を上限とする。However, on the other hand, deoxidation products (SiO□
) increases and impairs the cleanliness of the matrix metal, so the upper limit is set at 1.5%.
Ｍｎ：２．０％以下
ＭｎはＳｉと同様に、溶融金属の脱酸作用を有するほか
、溶融金属中の不純物であるＳをＭｎＳとして固定無害
化する働きを有する。しかし、含有量が多くなると、溶
融金属中におけるＭｎＳの残存量が増加し、マトリック
ス金属の清浄度が低下するので、２．０％を上限とする
。Mn: 2.0% or less Like Si, Mn has a deoxidizing effect on molten metal, and also has the function of fixing S, which is an impurity in molten metal, as MnS and rendering it harmless. However, if the content increases, the amount of MnS remaining in the molten metal increases and the cleanliness of the matrix metal decreases, so the upper limit is set at 2.0%.
Ｃｒ ： １５．０〜３２．０％ Ｃｒはマトリックス金属の耐酸化性を高める。Cr: 15.0-32.0% Cr increases the oxidation resistance of the matrix metal.
この効果を得るには、少なくとも１５．０％を必要とす
る。含有量の増加に伴ってその効果は増すが、３２．０
％を越えると、靭性の低下および溶接性の劣化を招く。At least 15.0% is required to achieve this effect. The effect increases as the content increases, but 32.0
%, the toughness and weldability deteriorate.
よって、３２．０％を上限とする。Therefore, the upper limit is set at 32.0%.
Ｎ ｉ ： １０．０〜２５．０％
Ｎｉはオーステナイト生成元素として必要であり、耐熱
性、靭性、溶接性を高める作用を有する。Ni: 10.0-25.0% Ni is necessary as an austenite-forming element and has the effect of improving heat resistance, toughness, and weldability.
この効果を得るには少なくとも、１０．０％を必要とす
る。但し、２５．０％を越えると、マトリックス金属の
低融点化を招くので、２５．０％を上限とする。At least 10.0% is required to obtain this effect. However, if it exceeds 25.0%, the melting point of the matrix metal will be lowered, so the upper limit is set at 25.0%.
Ｃｏ：２５．０〜４５．０％
ＣＯはマトリックス金属の高温圧縮強度を高める元素で
ある。この効果を得るために、少なくとも２５．０％を
必要とする。含有量の増加に伴って、その効果は増強さ
れるが、４５．０％を越えると、耐熱性の点で好ましく
ないので、４５．０％を上限とする。Co: 25.0 to 45.0% CO is an element that increases the high temperature compressive strength of the matrix metal. To obtain this effect, at least 25.0% is required. The effect is enhanced as the content increases, but if it exceeds 45.0%, it is unfavorable in terms of heat resistance, so 45.0% is the upper limit.
Ｍｏ：３．０〜１０．０％
Ｍｏはマ） ＩＪフックス属の高温圧縮強度を高める効
果を有する。この効果は、含有量３．０％以上において
現れる。含有量の増加に伴って、その効果は増大するが
、１０．０％を越えると、はぼ飽和するので、１０．０
％を上限とする。Mo: 3.0 to 10.0% Mo has the effect of increasing the high temperature compressive strength of IJ Fuchs. This effect appears when the content is 3.0% or more. The effect increases as the content increases, but if it exceeds 10.0%, it becomes saturated, so 10.0%
The upper limit is %.
次に、本発明に係る第２の複合粉末溶接材における金属
粉末の成分組成の限定理由を説明する。Next, the reason for limiting the composition of the metal powder in the second composite powder welding material according to the present invention will be explained.
Ｃｏ ： ２０．０〜６０．０％ ＣＯは高温圧縮強度を高める元素であり、Ｃ。Co: 20.0-60.0% CO is an element that increases high-temperature compressive strength, and C.
−Ｃｒ系合金において、２０．０％以上を占めることに
より顕著な効果が奏せられる。含有量の増加に伴ってそ
の効果は強められるが、６０．０％を越えると、耐熱性
の点で好ましくない。よって、６０．０％を上限とする
。- In a Cr-based alloy, a significant effect can be achieved by occupying 20.0% or more. The effect becomes stronger as the content increases, but if it exceeds 60.0%, it is unfavorable in terms of heat resistance. Therefore, the upper limit is set at 60.0%.
Ｃｒ：残部
Ｃｒは耐酸化性を付与する元素であり、Ｃｏ−Ｃｒ系合
金の基本成分として、４０．０〜８０．０％を占める。Cr: The remainder Cr is an element that imparts oxidation resistance, and accounts for 40.0 to 80.0% as a basic component of the Co-Cr alloy.
本発明の複合粉末溶接材を構成するために上記金属粉末
に配合されるセラミック粉末の種類は特に限定されない
が、例えば、炭化珪素（Ｓ ｉ Ｃ）、炭化タングステ
ン（ＷＣ，ＷＺＣ’） 、炭（ｔＪ−タン（ＴｉＣ）、
炭化クロム（Ｃｒ＋Ｃｚ等）などの炭化物系セラミック
粉末は、耐熱性および耐摩耗性等の点から、好ましく用
いられる。The type of ceramic powder to be added to the metal powder to constitute the composite powder welding material of the present invention is not particularly limited, but examples include silicon carbide (S i C), tungsten carbide (WC, WZC'), charcoal ( tJ-tan (TiC),
Carbide-based ceramic powders such as chromium carbide (Cr+Cz, etc.) are preferably used in terms of heat resistance, wear resistance, and the like.
セラミック粒子は、前記金属マトリックスに均一に分散
し、補強材として、肉盛層の耐熱性、耐高温圧縮強度等
を高める。特に、セラミック粒子は、それ自身、硬度（
ＨＶ）：約１５００以上と極めて硬質であるので、マト
リックス中に分散することにより、肉盛層に卓抜した摩
耗抵抗をもたらす。The ceramic particles are uniformly dispersed in the metal matrix and serve as reinforcing materials to enhance the heat resistance, high-temperature compressive strength, etc. of the built-up layer. In particular, ceramic particles themselves have a hardness (
HV): It is extremely hard with a value of about 1,500 or more, so by dispersing it in the matrix, it provides the build-up layer with outstanding abrasion resistance.
複合粉末混合物におけるセラミック粉末の配合量を３０
％以上とするのは、セラミック粒子の上記分散効果を十
分ならしめるためである。但し、その配合量が７０％を
越えると、溶接性が悪くなり、かつ肉盛層の靭性、およ
び基材との接着強度の低下等を招くので、７０％を上限
とする。The amount of ceramic powder in the composite powder mixture is 30
% or more in order to make the above-mentioned dispersion effect of the ceramic particles sufficient. However, if the amount exceeds 70%, weldability deteriorates, and the toughness of the built-up layer and the adhesive strength with the base material decrease, so the upper limit is set at 70%.
更に、粉末の粒度を５０メツシュ以上とするのは、粒径
がそれより粗大になると、溶接性が悪くなるからであり
、一方２５０メソシュを上限とするのは、それより微細
な粒子であると、プラズマ溶接肉盛時の粉末のキャリヤ
ー性が悪化し、複合粉末溶接材の送給が不安定になるか
らである。Furthermore, the reason why the particle size of the powder is set to 50 mesh or more is because if the particle size becomes coarser than that, weldability deteriorates, whereas the upper limit of 250 mesh is because the particles are finer than that. This is because the carrier properties of the powder during plasma welding build-up deteriorate, and the feeding of the composite powder welding material becomes unstable.
本発明の複合粉末溶接材による肉盛層を形成する基材の
材質に制限はないが、スラブ加熱炉の炉床金物等のよう
な場合には、前記の各種耐熱鋼が好ましく用いられる。Although there is no restriction on the material of the base material forming the overlay of the composite powder welding material of the present invention, the various heat-resistant steels described above are preferably used in cases such as hearth hardware of a slab heating furnace.
去隻皿よ
第１表に示す粉末を溶接材として、粉末プラズマアーク
溶接（移行アーク）溶接により、耐熱鋼基材（３０Ｃｒ
−２ＯＮｉ−４０Ｃｏ−２Ｍｏ−Ｆｅ）の表面に肉盛層
を形成した。いずれも、肉盛層数は３層であり、層厚は
１０ ｍｍである。Using the powder shown in Table 1 as a welding material, a heat-resistant steel base material (30Cr
-2ONi-40Co-2Mo-Fe), a build-up layer was formed on the surface. In both cases, the number of built-up layers is three, and the layer thickness is 10 mm.
賦香（１）〜（３）は発明例、賦香（１０１）、（１０
２）は比較例であり、各側において使用したセラミック
粉末は、いずれもｃｒ：＋ｃｚである。Perfuming (1) to (3) are invention examples, Perfuming (101), (10
2) is a comparative example, and the ceramic powder used on each side was cr:+cz.
比較例（１０１）、（１０２） （７）うち、賦香（１
０１）は金属粉末のみからなる例、賦香（１０２）はセ
ラミック粉末の配合量が本発明の規定から逸脱している
例である。Comparative Examples (101), (102) (7) Of which, fragrance (1
No. 01) is an example consisting of only metal powder, and No. 01) is an example in which the blending amount of ceramic powder deviates from the regulations of the present invention.
（Ｔ）溶接条件
（１１電圧：３５Ｖ、電流：１２０Ａ
（２）作動ガス：Ａｒガス
プラズマガス・・・・２．５ｊ？／ｍｉｎシールドガス
・・・・２０．５β／ ｍ ｉ ｎキャリアーガス・・
２５．５ （１／ ｍ１ｎ（Ｉり肉盛層の諸特性
各溶接材を用いて形成された肉盛層の圧縮強度（ｋｇ／
ｎｉ’、ａｔ１２５０℃）、硬度（Ｈｖ 、 ａｔｌ
ｏｏｏ℃）、耐酸化性（、、／年、 ａｔ１２００℃）
、基材表面との接着強度（ｋｇ／ｍｌ、室温）、および
溶接性を第２表に示す。但し、耐酸化性（鰭／年）は、
肉盛層表面の酸化損耗層厚で評価し、溶接性は肉盛層を
切断し、切断面を液体浸透探傷試験に付し、割れの有無
（０７割れなし、×：割れ有り）により評価した。(T) Welding conditions (11 Voltage: 35V, Current: 120A (2) Working gas: Ar gas plasma gas...2.5j?/min Shield gas...20.5β/min Carrier gas・
25.5 (1/m1n(I) Compressive strength of the build-up layer formed using each welding material
ni', at1250℃), hardness (Hv, atl
ooo℃), oxidation resistance (,,/year, at1200℃)
Table 2 shows the adhesive strength (kg/ml, room temperature) with the base material surface, and weldability. However, the oxidation resistance (fin/year) is
The weldability was evaluated by the thickness of the oxidation damage layer on the surface of the overlay layer, and the weldability was evaluated by cutting the overlay layer, subjecting the cut surface to a liquid penetrant test, and determining the presence or absence of cracks (07: no cracks, ×: cracks). .
天、ｆｉｌ
第３表に示す粉末を溶接材とし、実施例１と同じ溶接条
件により耐熱鋼基材（ＳＵＳ３１０相当）の表面に３層
盛の肉盛層（層厚ニアｍｍ）を形成し、それぞれ肉盛層
の諸特性を実施例１と同じ要領で測定評価して第４表に
示す結果を得た。Using the powder shown in Table 3 as a welding material, a three-layer build-up layer (layer thickness near mm) was formed on the surface of a heat-resistant steel base material (SUS310 equivalent) under the same welding conditions as in Example 1, The various properties of each built-up layer were measured and evaluated in the same manner as in Example 1, and the results shown in Table 4 were obtained.
賦香（２１）〜（２３）は本発明例、賦香（２０１）〜
（２０５）は比較例である。セラミック粉末は、Ｃｒ、
Ｃ２粉末である。比較例のうち、賦香（２０１）は金属
粉末のみからなる例、賦香（２０２）〜（２０３）はマ
トリックス組成が本発明の規定から逸脱している例、賦
香（２０４）、（２０５）はセラミック粉末の配合料が
本発明の規定から逸脱している例である。Perfuming (21) to (23) are examples of the present invention, Perfuming (201) to
(205) is a comparative example. The ceramic powder contains Cr,
It is C2 powder. Among the comparative examples, perfume (201) is an example consisting only of metal powder, perfume (202) to (203) are examples in which the matrix composition deviates from the provisions of the present invention, and perfume (204), (205) ) is an example in which the composition of the ceramic powder deviates from the provisions of the present invention.
前記第２表および第４表に示すとおり、本発明例におけ
る肉盛層は、セラミック粒子を含まない肉盛層（賦香１
０１，２０１）に比し、格段にすくれた高温での圧縮強
度、硬度（耐摩耗性）および耐酸化性を有し、また溶接
性が良好であり、基材表面との接着強度も十分である。As shown in Tables 2 and 4 above, the build-up layer in the example of the present invention is a build-up layer that does not contain ceramic particles (the build-up layer does not contain ceramic particles).
It has significantly lower compressive strength, hardness (wear resistance), and oxidation resistance at high temperatures than 01, 201), and also has good weldability and sufficient adhesive strength with the base material surface. It is.
なお、比較例のように、セラミック粒子を含む複合組織
を有する肉盛層であっても、その配合量が不足すると、
高温での圧縮強度、硬度および耐酸化性等の改善効果が
乏しく 〔賦香（１０２）、（２０５））、逆に配合量
が多過ぎると、溶接性や基材表面との接着強度が低下し
ている〔賦香（１０３）、（２０４））。またマトリッ
クス組成が不適当な場合〔賦香（２０２）、（２０３）
）にも本発明例における肉盛層の品質に及ばない。In addition, even if the overlay layer has a composite structure containing ceramic particles, as in the comparative example, if the amount of the overlay is insufficient,
The effect of improving compressive strength, hardness, oxidation resistance, etc. at high temperatures is poor [Fufu (102), (205)], and on the other hand, if the amount is too large, weldability and adhesive strength with the base material surface decrease. [Incense (103), (204)] Also, if the matrix composition is inappropriate [Fragrance (202), (203)]
) is also inferior to the quality of the built-up layer in the example of the present invention.
本発明の複合粉末を溶接材としてプラズマ粉体溶接によ
り、耐熱合金をマトリックスとし、該マトリックスにセ
ラミック粒子が分散相として混在する肉盛層を形成する
ことができる。その肉盛層は、マトリックス金属とセラ
ミック粒子との複合効果により、従来の耐熱・耐圧縮強
度・耐摩耗用材をはるかに凌ぐ高温特性を備えており、
かつ基材表面に対する接着強度にもすぐれている。By plasma powder welding using the composite powder of the present invention as a welding material, it is possible to form a build-up layer in which a heat-resistant alloy is used as a matrix and ceramic particles are mixed as a dispersed phase in the matrix. Due to the combined effect of the matrix metal and ceramic particles, the build-up layer has high-temperature properties that far exceed those of conventional materials for heat resistance, compressive strength, and wear resistance.
It also has excellent adhesive strength to the surface of the base material.
本発明複合粉末溶接材により形成される肉盛層は、高温
用部材、特にスラブ加熱炉の炉床金物等のように、１２
００”ｃを越える高温酸化雰囲気中、スラブ等の重量物
の負荷と摩耗をうける苛酷な条件下に使用れる部材の保
護層として好適であり、これらの部材の耐久性の改善、
炉操業の安定・円滑化は大きく貢献する。むろん、その
用途は、これに限られず、例えば圧延用ロールワーク、
ガイドシーリング部材等の表面保護層としても有用であ
り、その工業的意義は大である。The build-up layer formed by the composite powder welding material of the present invention is suitable for high-temperature parts, especially hearth hardware of slab heating furnaces, etc.
Suitable as a protective layer for members used under severe conditions such as slabs and other heavy loads and abrasion in high-temperature oxidizing atmospheres exceeding 00"c, improving the durability of these members,
Stabilizing and smoothing furnace operations will greatly contribute. Of course, its uses are not limited to this, for example, rolling roll work,
It is also useful as a surface protective layer for guide sealing members, etc., and has great industrial significance.
Claims (3)
、 金属粉末は、Ｃ：０．１５％以下、Ｓｉ：１．５％以下
、Ｍｎ：２．０％以下、Ｃｒ：１５．０〜３２．０％、
Ｎｉ：１０．０〜２５．０％、Ｃｏ：２５．０〜４５．
０％、残部実質的にＦｅからなる成分組成を有し、 セラミック粉末の配合量は３０％以上であり、混合粉末
の粒度は５０〜２５０メッシュであること、を特徴とす
るプラズマ溶接肉盛用複合粉末溶接材。(1) Consisting of a mixed powder of metal powder and ceramic powder, the metal powder includes C: 0.15% or less, Si: 1.5% or less, Mn: 2.0% or less, Cr: 15.0-32 .0%,
Ni: 10.0-25.0%, Co: 25.0-45.
0%, the remainder substantially consisting of Fe, the blended amount of ceramic powder is 30% or more, and the particle size of the mixed powder is 50 to 250 mesh. Composite powder welding material.
るものである上記第（１）項に記載のプラズマ溶接肉盛
用複合粉末溶接材。(2) The composite powder welding material for plasma welding overlay according to item (1) above, wherein the metal powder contains Mo: 3.0 to 10.0%.
、 金属粉末は、Ｃｏ：２０．０〜６０．０％、残部は実質
的にＣｒからなる成分組成を有し、 セラミック粉末の配合量は３０％以上であり、混合粉末
の粒度は５０〜２５０メッシュであることを特徴とする
プラズマ溶接肉盛用複合粉末溶接材。(3) Consisting of a mixed powder of metal powder and ceramic powder, the metal powder has a component composition of Co: 20.0 to 60.0%, the balance substantially consisting of Cr, and the blending amount of the ceramic powder is 30% or more, and the particle size of the mixed powder is 50 to 250 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27560685A JPH0238076B2 (en) | 1985-12-06 | 1985-12-06 | YOSETSUNIKUMORYOFUKUGOFUNMATSUYOSETSUZAI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27560685A JPH0238076B2 (en) | 1985-12-06 | 1985-12-06 | YOSETSUNIKUMORYOFUKUGOFUNMATSUYOSETSUZAI |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29347089A Division JPH02165896A (en) | 1989-11-10 | 1989-11-10 | Mixed powder welding material for build up weld |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62134193A true JPS62134193A (en) | 1987-06-17 |
| JPH0238076B2 JPH0238076B2 (en) | 1990-08-28 |
Family
ID=17557784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27560685A Expired - Lifetime JPH0238076B2 (en) | 1985-12-06 | 1985-12-06 | YOSETSUNIKUMORYOFUKUGOFUNMATSUYOSETSUZAI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238076B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6465275A (en) * | 1987-09-03 | 1989-03-10 | Fuji Electric Co Ltd | Composite material combining cavitation resistance with earth and sand abrasion resistance |
| JPS6471595A (en) * | 1987-09-09 | 1989-03-16 | Kubota Ltd | Composite welding material for cladding by welding |
| JPH05261585A (en) * | 1992-03-19 | 1993-10-12 | Atsushi Niinuma | Method for weld repairing metallic member, its welding method and welding device therefor |
| WO2010001859A1 (en) * | 2008-07-02 | 2010-01-07 | 住友金属工業株式会社 | Member for conveying high-temperature material |
| JP2010013698A (en) * | 2008-07-03 | 2010-01-21 | Sumitomo Metal Ind Ltd | Member for conveying high temperature material |
| WO2011074131A1 (en) | 2009-12-16 | 2011-06-23 | 住友金属工業株式会社 | Member for conveying high-temperature materials |
| CN103706921A (en) * | 2013-12-23 | 2014-04-09 | 鞍钢实业集团冶金机械有限公司 | Build up welding repair method of supporting roller of hot continuous rolling finishing mill |
-
1985
- 1985-12-06 JP JP27560685A patent/JPH0238076B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6465275A (en) * | 1987-09-03 | 1989-03-10 | Fuji Electric Co Ltd | Composite material combining cavitation resistance with earth and sand abrasion resistance |
| JPS6471595A (en) * | 1987-09-09 | 1989-03-16 | Kubota Ltd | Composite welding material for cladding by welding |
| JPH05261585A (en) * | 1992-03-19 | 1993-10-12 | Atsushi Niinuma | Method for weld repairing metallic member, its welding method and welding device therefor |
| WO2010001859A1 (en) * | 2008-07-02 | 2010-01-07 | 住友金属工業株式会社 | Member for conveying high-temperature material |
| JP2010013698A (en) * | 2008-07-03 | 2010-01-21 | Sumitomo Metal Ind Ltd | Member for conveying high temperature material |
| WO2011074131A1 (en) | 2009-12-16 | 2011-06-23 | 住友金属工業株式会社 | Member for conveying high-temperature materials |
| CN103706921A (en) * | 2013-12-23 | 2014-04-09 | 鞍钢实业集团冶金机械有限公司 | Build up welding repair method of supporting roller of hot continuous rolling finishing mill |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0238076B2 (en) | 1990-08-28 |
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