JPS58151402A - Method for spheroidizing abrasion resistant alloy - Google Patents

Method for spheroidizing abrasion resistant alloy

Info

Publication number
JPS58151402A
JPS58151402A JP56170005A JP17000581A JPS58151402A JP S58151402 A JPS58151402 A JP S58151402A JP 56170005 A JP56170005 A JP 56170005A JP 17000581 A JP17000581 A JP 17000581A JP S58151402 A JPS58151402 A JP S58151402A
Authority
JP
Japan
Prior art keywords
arc
abrasion resistant
powder
wear
spheroidizing
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
Application number
JP56170005A
Other languages
Japanese (ja)
Other versions
JPH0128081B2 (en
Inventor
Hiroshi Nakada
中田 弘志
Masao Tsunoda
角田 正夫
Toyotaka Iijima
飯島 豊隆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilot Corp
Original Assignee
Pilot Pen Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pilot Pen Co Ltd filed Critical Pilot Pen Co Ltd
Priority to JP56170005A priority Critical patent/JPS58151402A/en
Publication of JPS58151402A publication Critical patent/JPS58151402A/en
Publication of JPH0128081B2 publication Critical patent/JPH0128081B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06Metallic powder characterised by the shape of the particles
    • B22F1/065Spherical particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To obtain balls having excellent sphericity with virtually no consumption of an arc as compared to the prior art by spheroidizing powder of abrasion resistant metals by the arc then irradiating laser beams thereto. CONSTITUTION:For example, powder of abrasion resistant metals such as Os, Ir and W or those metals added with >=1 Pt, Pd, Ru is prepared. The powder of such abrasion resistant metals is first melted by heating with the arc in an inert gaseous atmosphere of Ar or the like in an extremely short time whereby the powder is spheroidized tentatively. The tentatively spheroidized bodies are irradiated with laser beams in an inert gaseous atmosphere of Ar or the like, whereby the abrasion resistant alloys melted by the heating are made spherical by surface tention. As compared to conventional methods using the arc, no electrodes are used in this method, or even if electrodes are used, the consumption thereof is reduced considerably, and the automation of production stages is made possible.

Description

【発明の詳細な説明】 本発明は耐摩耗性金属の粉末をレーザ光線により球状に
制球する制球方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ball control method for controlling wear-resistant metal powder into a spherical shape using a laser beam.

従業、たとえばべ/の先端に溶接される球状の耐摩耗性
合金の製造方法は、耐摩耗性合金の粉末をアークにより
加熱溶解して制球するもので、電極の消耗が著しく、電
極を頻繁に交換するこ、とを要し、制球工程を自動化す
るのに支障とな帛ていた。
The manufacturing method for the spherical wear-resistant alloy that is welded to the tip of a ball, for example, involves heating and melting wear-resistant alloy powder with an arc to control the ball, which results in significant electrode wear and requires frequent use. This required replacement, which was a hindrance to automating the ball control process.

本発明はこの欠点を改良するものである。すなわち1本
発明は (リ 耐摩耗性金属の粉末をアークにより仮制球し1次
いでレーザ光線を照射して球体にする。
The present invention ameliorates this drawback. That is, one aspect of the present invention is to temporarily control wear-resistant metal powder using an arc and then irradiate it with a laser beam to make it into a sphere.

耐摩耗性合金の制球方法(以下、「第一の発明」という
) お上び (2)耐摩耗性金属の粉末をバインダーにより製錠し2
次いでレーザ光線を照射して球体にする。耐摩耗性合金
の制球方法(以下、「第二の発明」という) である。
A ball control method using a wear-resistant alloy (hereinafter referred to as the "first invention").
It is then irradiated with a laser beam to form a sphere. This is a ball control method using a wear-resistant alloy (hereinafter referred to as the "second invention").

第一の発明では、耐摩耗性金属の粉末をまず不活性ガス
雰囲気中でアークによシ加熱溶解させて焼結させ仮制球
する。このアークの発生は短時間であるので電極の消耗
は従来の制球に比べて著しく減小し、電極の交換頻度は
著しく減小する。
In the first invention, a wear-resistant metal powder is first melted by heating with an arc in an inert gas atmosphere and sintered to temporarily control the ball. Since this arc occurs for a short time, the wear of the electrode is significantly reduced compared to conventional ball control, and the frequency of electrode replacement is significantly reduced.

第二の発明では、耐摩耗性金属の粉末をまずノやイーン
ダーとともに円板状1円柱状などに製錠する。この製錠
にはアークの発生は不要である。
In the second invention, a wear-resistant metal powder is first made into a disk-shaped, one-column-shaped, etc. tablet together with a binder and an ender. This tablet making does not require arcing.

次いで、仮制球又は製錠した耐摩耗性合金の粉末に、不
活性ガス雰囲気中でレーザ光線を照射すると加熱溶解し
た耐摩耗性合金は表面張力で球状となる。
Next, when the powder of the wear-resistant alloy that has been made into temporary balls or tablets is irradiated with a laser beam in an inert gas atmosphere, the heated and melted wear-resistant alloy becomes spherical due to surface tension.

本発明における耐摩耗性金属は、たとえば次のものであ
る。
Examples of wear-resistant metals in the present invention include the following.

Os、IrおよびRu、又はPt、Pd、Ruの1つ又
は2つ以上を添加したもの Re、RuおよびW、又はそれらにPt、 Pd。
Os, Ir, and Ru, or one or more of Pt, Pd, and Ru added. Re, Ru, and W, or Pt, Pd.

Coの1つ又は2つ以上を添加したものRe、 Ru、
 OsおよびW、又はそれらにpt。
Added one or more of Co, Re, Ru,
Os and W or pt to them.

Pd、Coの1つ又は2つ以上を添加したもの第二の発
明におけるバインダはポリビニルアルコール、コバルト
などが使用できる。
As the binder in the second invention, which contains one or more of Pd and Co, polyvinyl alcohol, cobalt, etc. can be used.

レーザ光線l1Nd : YAGレーザ、 Nd”+レ
ーザ。
Laser beam l1Nd: YAG laser, Nd''+ laser.

YAGレーザ、近赤外線レーザなどが使用できる。  
          。
YAG laser, near-infrared laser, etc. can be used.
.

次に1本発明の詳細な説明する。Next, one aspect of the present invention will be explained in detail.

実施例1 Os45重量%、Ir35重量%、RulO重1%、P
t  5重量%の耐摩耗性金属の粉末を充分混合し、真
径1m+の半円球状にして耐熱性金属の基台に置き粉末
の上方に電極を位置させた。アルゴン雰囲気中でアーク
電圧250V。
Example 1 45% by weight of Os, 35% by weight of Ir, 1% by weight of RulO, P
t 5% by weight of wear-resistant metal powder was thoroughly mixed, formed into a semicircular sphere with a diameter of 1 m+, and placed on a heat-resistant metal base with an electrode positioned above the powder. Arc voltage 250V in argon atmosphere.

アーク電流10Aで、1回目0.6〜0,8秒および約
1’ 0秒後、第2回目0.45秒で耐摩耗性金属の粉
末をアークにより焼結させ仮制球した。
At an arc current of 10 A, the wear-resistant metal powder was sintered by the arc at 0.6 to 0.8 seconds and about 1'0 seconds after the first time, and 0.45 seconds during the second time to temporarily control the ball.

次いで、アルゴン雰囲気中で、仮制球した耐摩耗性金属
に出力エネルギー150WのNd:YAGンーザ光#!
(発振器電源および加工光学系ユニットは日本電気■製
のレーザシーム溶接機5L−444を使用した。)を2
.5秒照射して直径0、7 mの球体とした。
Next, in an argon atmosphere, a Nd:YAG Nuzza light #! with an output energy of 150W was applied to the temporarily controlled wear-resistant metal.
(The oscillator power supply and processing optical system unit used a laser seam welding machine 5L-444 manufactured by NEC ■.)
.. It was irradiated for 5 seconds to form a sphere with a diameter of 0.7 m.

実施例2 実施例1の耐摩耗性金属の粉末を充分混合し。Example 2 Thoroughly mix the wear-resistant metal powder of Example 1.

孔径1mmの型でプレスして外径1m+n、長さ2■の
円柱状にした。以下、実施例1と同様にして直径0.7
 mの球体とした。
It was pressed using a mold with a hole diameter of 1 mm to form a cylindrical shape with an outer diameter of 1 m+n and a length of 2 cm. Hereinafter, in the same manner as in Example 1, a diameter of 0.7
It was made into a sphere of m.

実施例3 実施例1の耐摩耗性金属の粉末にポリビニールアルコー
ル1%を添加し充分混合し、孔径0、5 mの型でプレ
スして外径0.5 m +長さ2mの円柱状に製錠した
。次いで、アルゴン雰囲気中で製錠した耐摩耗性金属に
実施例1と同様にレーザ光線を照射して直径0.7 m
の球体とした。
Example 3 1% polyvinyl alcohol was added to the wear-resistant metal powder of Example 1, mixed thoroughly, and pressed in a mold with a hole diameter of 0.5 m to form a cylindrical shape with an outer diameter of 0.5 m + length of 2 m. It was made into tablets. Next, a wear-resistant metal tablet made in an argon atmosphere was irradiated with a laser beam in the same manner as in Example 1 to form a tablet with a diameter of 0.7 m.
It was made into a sphere.

本発明の方法は従来のアークによる方法に比べて電極を
使用せず、又は電極を使用してもその消耗が著しく減小
し、製法工程を自動化でき。
Compared to conventional arc-based methods, the method of the present invention does not use electrodes, or even if electrodes are used, their consumption is significantly reduced, and the manufacturing process can be automated.

しかも本発明の方法で製造された球体はアークにより製
造された球体に比べて真球度を向上でき、ペン先におけ
る溶接を容易にすることができる。
Moreover, the spheres manufactured by the method of the present invention can have improved sphericity compared to spheres manufactured by arcing, and can be easily welded at the pen tip.

Claims (2)

【特許請求の範囲】[Claims] (1)  耐摩耗性金属の粉末をアークによシ仮制球し
9次いでレーザ光線を照射して球体にする。 耐摩耗性合金の制球方法。
(1) Powder of wear-resistant metal is temporarily controlled by an arc and then irradiated with a laser beam to form a sphere. Ball control method using wear-resistant alloys.
(2)耐摩耗性合金の粉末をバインダにより製錠し1次
いでレーザ光線を照射して球体にする。 耐摩耗性合金の制球方法。
(2) The powder of the wear-resistant alloy is made into a tablet using a binder and then irradiated with a laser beam to form a sphere. Ball control method using wear-resistant alloys.
JP56170005A 1981-10-26 1981-10-26 Method for spheroidizing abrasion resistant alloy Granted JPS58151402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56170005A JPS58151402A (en) 1981-10-26 1981-10-26 Method for spheroidizing abrasion resistant alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56170005A JPS58151402A (en) 1981-10-26 1981-10-26 Method for spheroidizing abrasion resistant alloy

Publications (2)

Publication Number Publication Date
JPS58151402A true JPS58151402A (en) 1983-09-08
JPH0128081B2 JPH0128081B2 (en) 1989-06-01

Family

ID=15896817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56170005A Granted JPS58151402A (en) 1981-10-26 1981-10-26 Method for spheroidizing abrasion resistant alloy

Country Status (1)

Country Link
JP (1) JPS58151402A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6333507A (en) * 1986-07-24 1988-02-13 Mitsubishi Metal Corp Method and apparatus for producing fine spheroidal powder
JPH0466603A (en) * 1990-07-06 1992-03-03 Nippon Steel Corp Production of fine metal ball
CN104889384A (en) * 2015-06-10 2015-09-09 深圳市威勒达科技开发有限公司 W-Re composite powder material and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6333507A (en) * 1986-07-24 1988-02-13 Mitsubishi Metal Corp Method and apparatus for producing fine spheroidal powder
JPH0466603A (en) * 1990-07-06 1992-03-03 Nippon Steel Corp Production of fine metal ball
CN104889384A (en) * 2015-06-10 2015-09-09 深圳市威勒达科技开发有限公司 W-Re composite powder material and preparation method thereof

Also Published As

Publication number Publication date
JPH0128081B2 (en) 1989-06-01

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