JPH0191995A - Welding material - Google Patents
Welding materialInfo
- Publication number
- JPH0191995A JPH0191995A JP24838487A JP24838487A JPH0191995A JP H0191995 A JPH0191995 A JP H0191995A JP 24838487 A JP24838487 A JP 24838487A JP 24838487 A JP24838487 A JP 24838487A JP H0191995 A JPH0191995 A JP H0191995A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- product
- build
- total
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 title claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 17
- 239000002184 metal Substances 0.000 abstract description 17
- 230000005496 eutectics Effects 0.000 abstract description 7
- 239000006104 solid solution Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 239000011812 mixed powder Substances 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000004520 agglutination Effects 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〉
本発明は、主に内需溶接に用いる溶接材料に関し、例え
ば、製鉄所、製ｉ閣所等における加熱炉のように、１Ｃ
ｏ０’Ｃ前後の高温雰囲気下で赤熱した板状、ビレット
状、おるいは棒状の金属製品の支持あるいは１般送のた
めに設置されている、いわゆるスキッド部材や搬送ロー
ルの表面改質に用いるしのである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to welding materials mainly used for domestic welding.
Used for surface modification of so-called skid members and conveyor rolls that are installed to support or generally transport plate-shaped, billet-shaped, or bar-shaped metal products that are heated in a high-temperature atmosphere around 0'C. It's Shino.
（従来の技術）
上記のような環境においては、スキッド部材や搬送ロー
ルの表面は酸化により損耗し、接ｍ（する金属製品表面
との滑りにより摩耗し、また接触する金属の凝着により
、酸化物を堆積する。 とくに、凝着酸化物は接触ある
いは摺動部に金属製品表面を損傷し、製品の歩留りに影
響するので重大な問題である。(Prior art) In the above environment, the surfaces of skid members and conveyor rolls are worn out due to oxidation, worn out due to sliding on the surfaces of metal products that come in contact with them, and oxidized due to adhesion of metals in contact with them. In particular, adhering oxides are a serious problem because they damage the surface of metal products on contact or sliding parts and affect the yield of products.
この対策として、従来より種々の方法がｈｌへしられて
あり、例えば、素材として、各種の耐熱合金が用いられ
ているのは勿論でおるが、更に、金属製品との接触面に
セラミックスの素材や、セラミックスの溶射被膜を用い
たり、必るいは各種の耐熱性金属を肉盛する方法が採用
されている。As a countermeasure against this, various methods have been known to HL in the past.For example, various heat-resistant alloys are of course used as materials, but also ceramic materials are used on the contact surface with metal products. Alternatively, a method of using a thermally sprayed coating of ceramics or overlaying with various heat-resistant metals has been adopted.
（発明が解決しようとする問題点）
然るに、前者の場合は靭性が低く、また後者の場合は高
温強度に問題があるほか、耐凝着性という点ては殆んど
無効であるという問題がおる。(Problems to be solved by the invention) However, the former case has low toughness, and the latter case has problems with high temperature strength and is almost ineffective in terms of adhesion resistance. is.
本発明は、上記の問題に対処するために開発完成された
もので、上述したスキッド部材や搬送ロールの表面に溶
接＋Ａ ′Ａ！３＋を肉盛溶接した際に、その溶接金属
の全面に炭化物が晶出した組織を形成し得て、該溶接金
属面に接触あるいは１晋動する金属の凝着が発生ぜず、
したがって酸化物は堆積せず、］○○○°Ｃ前後の雰囲
気温度での操業においても製品を損傷することのない溶
接材料を提供することを目的とする。The present invention was developed and completed to address the above problems, and includes welding +A'A! on the surface of the skid member and conveyor roll mentioned above. When overlaying 3+, a structure in which carbides crystallize can be formed on the entire surface of the weld metal, and no adhesion of metal that comes into contact with or moves on the weld metal surface occurs,
Therefore, the object of the present invention is to provide a welding material that does not deposit oxides and does not damage the product even when operated at an ambient temperature of around 000°C.
（問題点を解決するための手段）
上記の目的を達成するために、本発明に係る溶接ｖＪ料
の一つは、化学組成かＣｒ４０〜７０％、Ｃｏ２０〜５
０％、Ｃ２〜８％、Ｗ０．５〜２０％、ＮｉとＦｅの合
計０．０５〜１５％、ＳｉとＭｎの合計０．５〜５％、
その他不可避の不純物０．５％以下、残部がＣｏである
ことを特徴とするものであり、更に、本発明に係る今一
つの溶接材料は、化学組成がＣｒ４０〜７０％、Ｇ。(Means for Solving the Problems) In order to achieve the above object, one of the welding VJ materials according to the present invention has a chemical composition of 40 to 70% Cr, 20 to 5% Co.
0%, C2~8%, W0.5~20%, total of Ni and Fe 0.05~15%, total of Si and Mn 0.5~5%,
Another welding material according to the present invention is characterized by containing 0.5% or less of other unavoidable impurities and the remainder being Co. Furthermore, another welding material according to the present invention has a chemical composition of 40 to 70% Cr and G.
２０〜６０％、Ｃ２〜７％、Ｗ、Ｍｏ、Ｎｂ、Ｖのうち
、すくなくとも１種類以上を合計で１．０〜２０％、Ｎ
ｉとＦｅの合計０．０５〜１５％、ＳｉとＭｎの合Ｈ−
ｔ０．５〜５％、その他不可避の不純物０．５％以下、
残部がＣｏ−で必ることを特徴とするものであるが、次
に上記の組成範囲に規定した理由を作用の項において説
明する。20 to 60%, C2 to 7%, at least one or more of W, Mo, Nb, and V in total of 1.0 to 20%, N
Total of i and Fe 0.05-15%, total of Si and Mn H-
t0.5-5%, other unavoidable impurities 0.5% or less,
It is characterized in that the remainder must be Co-.The reason for specifying the above composition range will be explained next in the section of operation.
（作 用）
［Ｃｒ］
Ｃｒは一次固溶体の構成元素でおると同時に炭化物生成
に関する主要元素であり、４０％末）出では溶接金属の
耐熱性が七分てなく、酸化抵抗、耐凝着性が低下し、所
期の目的が達成されない。また、７０％を越えると溶接
金属が脆化する。(Function) [Cr] Cr is a constituent element of the primary solid solution and at the same time is a major element involved in carbide formation. decreases and the intended purpose is not achieved. Moreover, if it exceeds 70%, the weld metal becomes brittle.
［Ｃｏ１
Ｃｏは、クロムとともに固溶体構成元素であり、２０％
未満では固溶体の靭性が劣化し、溶接時の＾１１れ感度
が高くなるのみならず、使用時に衝撃などにより、肉盛
基材から剥離する危険が必る。[Co1 Co is a solid solution constituent element along with chromium, and has a content of 20%
If it is less than this, the toughness of the solid solution will deteriorate, and not only will the sensitivity to scratches during welding become high, but there will also be a risk of peeling from the overlay base material due to impact etc. during use.
また、６０％を越えると溶接金属が軟化し、耐摩耗性が
低下する。Moreover, if it exceeds 60%, the weld metal becomes soft and wear resistance decreases.
［Ｃ］
Ｃは、２％以下では炭化物生成量が不足し、耐熱性、耐
凝着性、耐摩耗性が低下する。８％を越えると溶接金属
の靭１１が低下し、溶接時の割れ感度が１高くなる。[C] When C is less than 2%, the amount of carbide produced is insufficient, and heat resistance, adhesion resistance, and abrasion resistance are reduced. When it exceeds 8%, the toughness 11 of the weld metal decreases, and the sensitivity to cracking during welding increases by 1.
［＼’ｌ／、 ＭＯｌＮｂ、Ｖ］
Ｗは、固溶体の強化、共晶炭化物生成のために不可欠の
元素であり、必ず添７Ｊｌするものであるが、ざらに耐
）疑着性、耐摩耗性、高温硬度を向上するため、モリブ
デン、ニオビウム、バナジウムのうちの少なくとも１種
以上を添加する場合がおる。[\'l/, MOINb, V] W is an essential element for strengthening the solid solution and forming eutectic carbides, and is always added at 7 Jl, but it also improves roughness resistance) and wear resistance. In order to improve high-temperature hardness, at least one of molybdenum, niobium, and vanadium may be added.
この場合、これらの元素の含有量の合計が１％未満では
その効果は無く、また、２０％を越えると共晶部が脆化
し、実用性が失われる。In this case, if the total content of these elements is less than 1%, there is no effect, and if it exceeds 20%, the eutectic part becomes brittle and practicality is lost.
ｒＮｉ、Ｆｅ１
ＮｉとＦｅは、共晶部の靭性を調整するために、場合に
よって添加するものであり、１５％を越えると耐摩耗性
、耐凝着性を低下させる。 また、合金元素として添加
しない場合でも０．０５８も以上は材料の不純物として
存在するのは避けられない。rNi, Fe1 Ni and Fe are optionally added in order to adjust the toughness of the eutectic part, and if they exceed 15%, the wear resistance and adhesion resistance are reduced. Moreover, even if it is not added as an alloying element, it is inevitable that more than 0.058% is present as an impurity in the material.
［Ｓｉ、Ｍｎ］
Ｓｉ、Ｍｎは、脱酸剤として添／Ｊｌするもので、０．
５％未満では脱酸の法師が不足し、気孔、酸化物の介在
等の欠陥を牛じやすくなる。 また、５％を越えると溶
接金属が脆化する。[Si, Mn] Si and Mn are added as deoxidizing agents, and are added at a concentration of 0.
If it is less than 5%, there will be insufficient deoxidizing agent, and defects such as pores and inclusion of oxides will be easily suppressed. Moreover, if it exceeds 5%, the weld metal becomes brittle.
（実施例１）
粒度範囲が５３・〜’１０６μｍであり、化学成分が［
Ｃ５，５，Ｃｒ５５． Ｏ，Ｗ３．０９ＭＯ５，５，Ｓ
ｉ ０．８．Ｆｅ１．２ （各重量％〉。(Example 1) The particle size range is 53 to 106 μm, and the chemical composition is [
C5,5, Cr55. O,W3.09MO5,5,S
i 0.8. Fe1.2 (each weight%).
Ｃ○残］から成る混合扮末をアーク溶解により溶融して
、径６履の丸棒状の溶接棒を鋳造し・、この溶接棒を用
いて酸素−アセヂレンガス溶接により、耐熱鋼製の径１
Ｃｏｍのスキッドボタンの上面仝休に、厚さ５酎の２層
肉盛溶接を施し、該スキッドボタンを雰囲気温度１２Ｃ
ｏ’Ｃの加熱炉内で使用した結果、１．５年経過後も凝
着は無く、酸化摩耗量は’１．５ｍ程度で、通常の耐熱
合金の３〜４１８の耐用性を示した。The mixed powder consisting of C○ residue was melted by arc melting, and a round bar-shaped welding rod with a diameter of 6 was cast. Using this welding rod, oxygen-acetylene gas welding was performed to make a heat-resistant steel with a diameter of 1
Two layers of overlay welding with a thickness of 5 mm are applied to the upper surface of the skid button, and the skid button is heated to an ambient temperature of 12C.
As a result of using it in an o'C heating furnace, there was no adhesion even after 1.5 years, and the oxidation wear amount was about 1.5 m, showing a durability of 3 to 418 of ordinary heat-resistant alloys.
（実施例２）
粒度範囲が３８〜６３μｍであり、化学成分が［Ｃ６，
５，Ｃｒ６５．０．Ｗ３．Ｏ，ＳｉＯ，８，Ｆｅ１．３
（各重量％＞、Ｃｏ残］から成る混合粉末を造粒によ
って５３〜２１２μｍ粒度範囲の粉末に調製し、これを
プラズマ粉体肉盛溶接法により、耐熱鋼製の長さ１２Ｃ
ｏｍ、巾１Ｃｏｍのスキッドレールの上面全体に厚さ５
ｍの１層肉盛溶接を施し、雰囲気温度１２Ｃｏ’Ｃの加
熱炉内で使用した結果、１．５年経過後も凝着は無く、
摩耗量は１耐程度で、通常の耐熱合金３〜５倍の耐用性
を示した。(Example 2) The particle size range is 38 to 63 μm, and the chemical components are [C6,
5, Cr65.0. W3. O, SiO, 8, Fe1.3
A mixed powder consisting of (each weight %>, Co remaining) is prepared by granulation into a powder with a particle size range of 53 to 212 μm, and this is processed into a length of 12C made of heat-resistant steel by a plasma powder overlay welding method.
om, thickness 5 over the entire top surface of a skid rail with a width of 1Com.
As a result of applying one-layer overlay welding of 1.0 m and using it in a heating furnace at an ambient temperature of 12Co'C, there was no adhesion even after 1.5 years.
The amount of wear was about 1, which is 3 to 5 times longer than ordinary heat-resistant alloys.
（発明の効果）
以上のじ１明から明らかなように、本発明に係る溶接材
料を使用する際の形態は、大別して扮末状或は鋳造ロッ
ド状であって、粉末の場合はプラズマ粉体肉盛溶接法に
より、鋳造ロンドの場合はＴＩＧ溶接により肉盛するの
であるか、いづれの場合もその化学組成に基づいて、そ
の溶接金属（、Ｉ。(Effects of the Invention) As is clear from the above description, the welding material according to the present invention can be roughly divided into a powder shape and a cast rod shape, and in the case of a powder, it is a plasma powder. Depending on the chemical composition of the weld metal (I.
稠密六方晶の炭化物−次品が全面に晶出し、その間に炭
化物と固溶体から成る共晶が形成され、その炭化物の硬
度はＨＶ１２Ｃｏ〜１５Ｃｏて、１Ｃｏ０’Ｃ以上の高
温においても耐熱性、耐酸化性を保持し、且つこの炭化
物を強靭な共晶が支持した組織を呈するため、肉盛溶接
面に接触あるいはｌ８接する製品の金属の凝着は発生せ
ず、したがって酸化物が堆積することもなく、１Ｃｏ０
°Ｃ前後の雰囲気温度での操業にｄ３いても製品を損傷
することがない等の特長を有するものである。A dense hexagonal carbide crystallizes on the entire surface, and a eutectic consisting of carbide and solid solution is formed between them.The hardness of the carbide is HV12Co~15Co, and it is heat resistant and oxidation resistant even at high temperatures of 1Co0'C or higher. Because it maintains its properties and exhibits a structure in which this carbide is supported by a strong eutectic, there is no adhesion of the metal of the product that comes into contact with the overlay welding surface, and therefore no oxides are deposited. ,1Co0
It has the advantage that the product will not be damaged even if it is operated at an ambient temperature of around °C.
なお、共晶域の硬度は、使用する溶接材料の組成によっ
て異なるが、ＨＶ６Ｃｏ〜８５０の範囲内で調整できる
。The hardness of the eutectic region varies depending on the composition of the welding material used, but can be adjusted within the range of HV6Co to 850.
、ｑ牝、’＝；（,qfemale,’=;(
Claims (1)
、Ｃ２〜８％、Ｗ０．５〜２０％、 ＮｉとＦｅの合計０．０５〜１５％、ＳｉとＭｎの合計
０．５〜５％、その他不可避の不純物０．５％以下、残
部がＣｏであることを特徴とする溶接材料。 （２）化学組成がＣｒ４０〜７０％、Ｃｏ２０〜６０％
、Ｃ２〜７％、Ｗ、Ｍｏ、Ｎｂ、Ｖのうち、すくなくと
も１種類以上を合計で １．０〜２０％、ＮｉとＦｅの合計０．０５〜１５％、
ＳｉとＭｎの合計０．５〜５％、その他不可避の不純物
０．５％以下、残部がＣｏであることを特徴とする溶接
材料。[Claims] (1) Chemical composition: 40-70% Cr, 20-50% Co
, C2-8%, W0.5-20%, total of Ni and Fe 0.05-15%, total of Si and Mn 0.5-5%, other unavoidable impurities 0.5% or less, the balance is Co. A welding material characterized by: (2) Chemical composition: Cr40-70%, Co20-60%
, C2-7%, at least one or more of W, Mo, Nb, and V in total of 1.0-20%, Ni and Fe in total of 0.05-15%,
A welding material comprising a total of 0.5 to 5% of Si and Mn, 0.5% or less of other unavoidable impurities, and the balance being Co.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248384A JPH069755B2 (en) | 1987-09-30 | 1987-09-30 | Welding material for forming a structure in which carbide is crystallized on the entire surface of the weld metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248384A JPH069755B2 (en) | 1987-09-30 | 1987-09-30 | Welding material for forming a structure in which carbide is crystallized on the entire surface of the weld metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0191995A true JPH0191995A (en) | 1989-04-11 |
| JPH069755B2 JPH069755B2 (en) | 1994-02-09 |
Family
ID=17177302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62248384A Expired - Lifetime JPH069755B2 (en) | 1987-09-30 | 1987-09-30 | Welding material for forming a structure in which carbide is crystallized on the entire surface of the weld metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069755B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615449B (en) * | 2012-04-10 | 2014-06-18 | 山东大学 | Roller overlaying powder with thin-layer slag protection |
| CN102615448B (en) * | 2012-04-10 | 2014-04-02 | 山东大学 | Hardfacing powder special for powder and gas feeding functional welding torch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5576036A (en) * | 1978-12-05 | 1980-06-07 | Mitsubishi Metal Corp | Co-base alloy for build-up welding of engine valve and valve seat of internal combustion engine |
| JPS5843196A (en) * | 1981-09-07 | 1983-03-12 | Sanyo Electric Co Ltd | Controlling method for motor |
| JPS61186190A (en) * | 1985-02-13 | 1986-08-19 | Kubota Ltd | Composite filter rod for building up by welding |
| JPS61293696A (en) * | 1985-06-19 | 1986-12-24 | Mitsubishi Metal Corp | Consumable electrode filler metal made of hardly workable hard co alloy for build-up welding |
| JPS6233090A (en) * | 1985-08-02 | 1987-02-13 | Daido Steel Co Ltd | Alloy powder for building up of powder |
-
1987
- 1987-09-30 JP JP62248384A patent/JPH069755B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5576036A (en) * | 1978-12-05 | 1980-06-07 | Mitsubishi Metal Corp | Co-base alloy for build-up welding of engine valve and valve seat of internal combustion engine |
| JPS5843196A (en) * | 1981-09-07 | 1983-03-12 | Sanyo Electric Co Ltd | Controlling method for motor |
| JPS61186190A (en) * | 1985-02-13 | 1986-08-19 | Kubota Ltd | Composite filter rod for building up by welding |
| JPS61293696A (en) * | 1985-06-19 | 1986-12-24 | Mitsubishi Metal Corp | Consumable electrode filler metal made of hardly workable hard co alloy for build-up welding |
| JPS6233090A (en) * | 1985-08-02 | 1987-02-13 | Daido Steel Co Ltd | Alloy powder for building up of powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069755B2 (en) | 1994-02-09 |
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