JPS59143041A - Tungsten electrode material - Google Patents
Tungsten electrode materialInfo
- Publication number
- JPS59143041A JPS59143041A JP1760783A JP1760783A JPS59143041A JP S59143041 A JPS59143041 A JP S59143041A JP 1760783 A JP1760783 A JP 1760783A JP 1760783 A JP1760783 A JP 1760783A JP S59143041 A JPS59143041 A JP S59143041A
- Authority
- JP
- Japan
- Prior art keywords
- tungsten
- cerium oxide
- electrode
- electrode rod
- electrode material
- 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
Landscapes
- Powder Metallurgy (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【発明の詳細な説明】
現在、電極及びＴＩＧ溶接用電極棒関係には、ｒ＃消耗
性、アーク点弧性の向上を得るため、主に酸化トリウム
が添加されている。特に、酸化トリウムを２０重量％前
後添加したタングステン電極、棒は、低消耗及び良好な
アーク点弧性を示し、電極関係の広い分野で使用されて
いる。DETAILED DESCRIPTION OF THE INVENTION Currently, thorium oxide is mainly added to electrodes and electrode rods for TIG welding in order to improve r# consumability and arc ignition properties. In particular, tungsten electrodes and rods containing approximately 20% by weight of thorium oxide exhibit low consumption and good arc ignition properties, and are used in a wide range of electrode-related fields.
しかしながら、タングステン粉末に添加される酸化トリ
ウム粉末、あるいは、硝酸トリウムは、放射性物質であ
ることから、入手が困難なうえ、その取り扱い、保管、
管理等の開門があり、安全性、経済性の面において不利
な点が多い。However, since thorium oxide powder or thorium nitrate added to tungsten powder is a radioactive substance, it is difficult to obtain, and the handling, storage, and
There are many disadvantages in terms of safety and economy, as there are many administrative issues.
したがって、近年、酸化トリウムの替わりとして他元素
を添加し、かつトリエテソドタングステン電極棒が有す
る特性を具備したトリャを含まないタングステンの開発
が試みられてきた。Therefore, in recent years, attempts have been made to develop thorium-free tungsten that has the characteristics of a thorium oxide tungsten electrode rod by adding other elements in place of thorium oxide.
本発明は、トリエテツドタングステンの持つ上記難点を
解消するためのものであり、その要旨は０２〜３０重量
％の酸化セリウム、残部タングステンとから成り、耐消
耗性及び良好なアーク点弧性を具備したタングステン電
極用材料を得るものである。本発明に使用した酸化セリ
ウムは、アーク点弧性に優れ、タングステンとの焼結性
が良好であると言う点でトリャに変わる添加物として有
望である。The present invention is intended to solve the above-mentioned disadvantages of trietated tungsten, and its gist is that it is made of 02 to 30% by weight of cerium oxide and the balance is tungsten, and has excellent wear resistance and good arc ignition properties. A material for a tungsten electrode is obtained. The cerium oxide used in the present invention has excellent arc ignition properties and good sinterability with tungsten, making it a promising additive to replace Torya.
製造法としては、一般に、タングステン粉末に０、２〜
ろ０重量％の酸化セリウムを添加した後、混合し、その
混合体を加圧成形、仮焼、さらに本′焼結を行なってイ
ンゴットを得る。次に、転打加工及び研削を行なうこと
により、タングステン−酸化セリウム電極棒が得られる
。In general, tungsten powder is manufactured by adding 0,2~
After adding 0% by weight of cerium oxide, the mixture is mixed, and the mixture is subjected to pressure molding, calcining, and final sintering to obtain an ingot. Next, a tungsten-cerium oxide electrode rod is obtained by rolling and grinding.
以上の様な方法で得られたタングステン−酸化セリウム
電極棒は、耐消耗性及び良好なアーク点弧性を有し、か
つ安全性、経済性に浸れた電極棒である。The tungsten-cerium oxide electrode rod obtained by the method described above has wear resistance and good arc ignition properties, and is highly safe and economical.
以下、実施例により詳細に説明する。Hereinafter, this will be explained in detail using examples.
実施例
純度９９９％以上の金属タングステン粉末に、０２〜３
０重量％の酸化セリウムを粉末混合したものであって、
混合は、播潰器及び■型混合機等ヲ用いてタングステン
と酸化セリウムとを均一に混合する。その後、加圧成形
、仮焼、さらに溶断電流の約９０％で本焼結を行なって
インゴットを得た。次に、転打加工、研削を行なって〆
３２のタングステン−酸化セリウム電極棒を得た。Example 02-3 to metallic tungsten powder with purity of 999% or more
A powder mixture of 0% by weight cerium oxide,
For mixing, tungsten and cerium oxide are uniformly mixed using a crusher, a type mixer, etc. Thereafter, pressure molding, calcination, and main sintering were performed at about 90% of the cutting current to obtain an ingot. Next, rolling and grinding were carried out to obtain a tungsten-cerium oxide electrode rod of No. 32.
加工後の光学顕微鏡による倍率１０口倍の組織写真を第
１図に示す。FIG. 1 shows a photograph of the structure taken at a magnification of 10x by an optical microscope after processing.
得うれたタングステン−酸化セリウム電極棒はＪＩＳ規
格（ＪＩＳ−２３２３３）に基づき、試Ｍ時間２０．４
０．６０分でアーク消耗試験を行なって、材質特性につ
いて観察した。The obtained tungsten-cerium oxide electrode rod had a test M time of 20.4 based on the JIS standard (JIS-23233).
An arc consumption test was conducted for 0.60 minutes and the material properties were observed.
その結果を第１表に示した。The results are shown in Table 1.
また、比較例として、純タングステン電極棒及び２０％
トリエテノドタングステン電極棒を同一条件でテストし
た時の結果も同時に示した。In addition, as a comparative example, pure tungsten electrode rod and 20%
At the same time, the results of testing a triatenodotungsten electrode rod under the same conditions are also shown.
第１表
次いで、タングステン−酸化セリウム電極棒の始動電流
値を測定した結果、純タングステン電極棒は、８０Ａ以
上、また２０％トリエテノドタングステン電極棒は、６
５Ａ付近で安定したアーク起動を示すのに対し、本発明
によるものは、６０Ａ何近で起動し、トリエテノドタン
グステンと同等モしくは、それ以下の電流値で安定した
アーク起動を見せた。Table 1 Next, as a result of measuring the starting current value of the tungsten-cerium oxide electrode rod, the pure tungsten electrode rod was 80A or more, and the 20% triethenodotungsten electrode rod was 60A or more.
In contrast to the stable arc starting at around 5 A, the one according to the present invention started at around 60 A and showed stable arc starting at a current value equal to or lower than that of triatenodotungsten.
次に、アーク消耗試験、６０分後の組織を光学顕微鏡で
観察した。Next, an arc consumption test was performed, and the structure after 60 minutes was observed using an optical microscope.
１０％酸化セリウム−タングステン電極棒の倍率１００
倍の組織写真を第２図に示す。尚、写真中黒い部分が酸
化セリウム粒子である。10% cerium oxide-tungsten electrode rod magnification 100
A photograph of the tissue at a magnification is shown in Fig. 2. The black parts in the photo are cerium oxide particles.
次に、２０％トリエテノドタングステン電極棒の倍率１
００倍の組織写真を第６図に示した。Next, the magnification of the 20% triethene tungsten electrode rod is 1.
A photograph of the structure at 00x magnification is shown in FIG.
以上の実、施例の結果、第１表より明らかな様に本発明
によって得られたタングステン−酸化セリウム電極棒は
、耐消耗性に優れ、特に、１０重量％以上添加した電極
棒は、その性質が顕著に現われる傾向にあった。また、
第２図、第６図から観察出来る様に、アークを長時間発
生させた後も、純タングステン及びトリエテノドタング
ステン電極棒に若干見られる様な先端面の溶融、変形等
は認められなかった。さらに、この電極棒は、頻繁な起
動に対しても、スムーズなアーク点弧性を示シ、材質的
にトリエテノドタングステン電極棒と同等、またはそれ
以上の特性を有するものであった。As a result of the above experiments, as is clear from Table 1, the tungsten-cerium oxide electrode rod obtained by the present invention has excellent wear resistance. characteristics tended to be more pronounced. Also,
As can be observed from Figures 2 and 6, even after the arc was generated for a long time, there was no melting or deformation of the tip surface, which is slightly observed in pure tungsten and triethene tungsten electrode rods. . Furthermore, this electrode rod exhibited smooth arc ignition properties even when activated frequently, and had properties equivalent to or better than triatenodotungsten electrode rods in terms of material.
従って、本発明による材料は、良好なアーク点弧性及び
耐消耗、耐変形が要求されるＴＩＣ溶接用電極棒を始め
とする一般用電極として用いるこ七が可能である。Therefore, the material according to the present invention can be used as general electrodes such as electrode rods for TIC welding, which require good arc ignition properties, wear resistance, and deformation resistance.
尚、酸化セリウム添加量が、６０重量％を越える材料は
、加工歩留の低下を示し、また、添加量が０２重量％を
下回る材料は、アーク点弧の際、消耗量の増加及び先端
部が溶融の傾向ｅこあり、′市価用としては好ましくな
い。Note that materials with an added amount of cerium oxide exceeding 60% by weight will show a decrease in processing yield, and materials with an added amount of less than 0.02% by weight will have an increased amount of wear and tear at the tip during arc ignition. However, it has a tendency to melt, which makes it undesirable for commercial use.
第１図は、本発明によって製造したタングステン−酸化
セリウム電極棒の光学顕漫鏡による加工後の組織写真を
示す。
第２図及び第３図は、各々１ｏ％酸化セリウムータング
ステン電極棒及び２０％トリエテノドタングステン電極
棒を、６０分間、アーク？肖耗試験を後の組織写真（先
端部）を示す。
特許出願人
日本タングステン株式会社
１００μ
−
１００μ
手続補正書（自発）
／、事件の表示
昭和３ｇ年特許願第０７７乙０７号
２、発明の名称
タングステン電極材料
３、補正をする者
事件との関係 特許出願人
（昭和Ｓｇ年７月／／日住所表示変更）夕、補正の対象
明細書
べ、補正の内容
朗細書第ｔページ上から７行目第７表中の「含有量」を
「添加量Ｊに補正する。FIG. 1 shows a photograph of the structure of the tungsten-cerium oxide electrode manufactured by the present invention after being processed using an optical microscope. Figures 2 and 3 show a 10% cerium oxide-tungsten electrode rod and a 20% triethene tungsten electrode rod, respectively, for 60 minutes. A photograph of the tissue (tip) after the wear test is shown. Patent applicant Nippon Tungsten Co., Ltd. 100μ - 100μ Procedural amendment (voluntary) /, Indication of the case 1925 Patent Application No. 077 Otsu No. 2, Name of the invention Tungsten electrode material 3, Person making the amendment Relationship to the case Patent Applicant (address changed on July 1999) In the evening, the subject of the amendment, the content of the amendment, the content of the amendment in Table 7, line 7 from the top of page t of the detailed specification, was changed from "Content" to "Additional amount". Correct to J.
Claims (1)
とから成り、耐消耗性及び良好なアーク点弧性を具備し
たタングステン電極用材料。A tungsten electrode material consisting of 702 to 60% by weight of cerium oxide and the balance being tungsten, and having wear resistance and good arc ignition properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1760783A JPS59143041A (en) | 1983-02-04 | 1983-02-04 | Tungsten electrode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1760783A JPS59143041A (en) | 1983-02-04 | 1983-02-04 | Tungsten electrode material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59143041A true JPS59143041A (en) | 1984-08-16 |
| JPS6317899B2 JPS6317899B2 (en) | 1988-04-15 |
Family
ID=11948567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1760783A Granted JPS59143041A (en) | 1983-02-04 | 1983-02-04 | Tungsten electrode material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59143041A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0197455A2 (en) * | 1985-04-01 | 1986-10-15 | Shanghai Lamp Factory | A process for preparing and use of ceriated tungsten electrode material |
| JPS6293075A (en) * | 1985-10-19 | 1987-04-28 | Daihen Corp | Non-consumable electrode arc welding method |
| JPS62286698A (en) * | 1986-06-03 | 1987-12-12 | Toho Kinzoku Kk | Tungsten electrode material |
| US4800316A (en) * | 1985-04-01 | 1989-01-24 | Shanghai Lamp Factory | Backing material for the ultrasonic transducer |
| WO1994024328A1 (en) * | 1993-04-14 | 1994-10-27 | Toho Kinzoku Co., Ltd. | Tungsten electrode material |
-
1983
- 1983-02-04 JP JP1760783A patent/JPS59143041A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0197455A2 (en) * | 1985-04-01 | 1986-10-15 | Shanghai Lamp Factory | A process for preparing and use of ceriated tungsten electrode material |
| JPS61288044A (en) * | 1985-04-01 | 1986-12-18 | シヤンハイ ランプ フアクトリイ | Tungsten electrode material containing cerium and its production |
| US4800316A (en) * | 1985-04-01 | 1989-01-24 | Shanghai Lamp Factory | Backing material for the ultrasonic transducer |
| JPS6293075A (en) * | 1985-10-19 | 1987-04-28 | Daihen Corp | Non-consumable electrode arc welding method |
| JPS62286698A (en) * | 1986-06-03 | 1987-12-12 | Toho Kinzoku Kk | Tungsten electrode material |
| WO1994024328A1 (en) * | 1993-04-14 | 1994-10-27 | Toho Kinzoku Co., Ltd. | Tungsten electrode material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6317899B2 (en) | 1988-04-15 |
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