JPS61130478A - Method for working phosphor bronze - Google Patents
Method for working phosphor bronzeInfo
- Publication number
- JPS61130478A JPS61130478A JP25114284A JP25114284A JPS61130478A JP S61130478 A JPS61130478 A JP S61130478A JP 25114284 A JP25114284 A JP 25114284A JP 25114284 A JP25114284 A JP 25114284A JP S61130478 A JPS61130478 A JP S61130478A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor bronze
- working
- hot
- processing
- bronze
- 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
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- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明けりん青銅の加工方法の改良に関するものであり
、特に熱間加工を可能にして製造工程の合理化を図った
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an improvement in a method for processing phosphor bronze, and in particular, to rationalize the manufacturing process by making hot working possible.
一般にＳｎ ３〜１２ ｗｔ％ 、 Ｐ ０．０１〜０
．５ ｗｔ％。Generally Sn 3-12 wt%, P 0.01-0
．． 5 wt%.
残部Ｃｕからなる合金はりん青銅とよばれ、優れた強度
と、他の非鉄ばね材料に比して優れたばね特性を有する
ため電気機器及び−子機器の部品として広く使用されて
いる。然しながらシん青銅を加工するにおいて熱間加工
性が悪いため専ら冷間加工のみで加工されているため必
然的にその製品はコストアラｆｇなりている。The alloy consisting of the remainder Cu is called phosphor bronze, and has excellent strength and spring properties compared to other non-ferrous spring materials, so it is widely used as parts of electrical equipment and child equipment. However, since thin bronze has poor hot workability, it is processed exclusively by cold working, and the product is inevitably expensive.
即ちりん青銅の鋳塊を熱間圧延すると圧延板の表面に大
きな亀裂を生じその後の圧延加工を不可能にする。従っ
て従来は冷間圧延のみで加工を行っているものである。That is, when a phosphor bronze ingot is hot-rolled, large cracks occur on the surface of the rolled plate, making subsequent rolling impossible. Therefore, conventionally, processing has been carried out only by cold rolling.
又シん青銅は加工硬化が大きいため中間焼鈍を多数回行
う必倹があシ、これが製品の工程を複雑化してコストア
ップに著しい影響を及ぼしているものである。Furthermore, since thin bronze is highly work hardened, it is necessary to perform intermediate annealing many times, which complicates the manufacturing process and significantly increases costs.
本発明はかかる現状に鑑み鋭意研究を行った結果、りん
青銅の加工方法としてシん青銅の鋳塊を熱間加工によシ
圧延するも冷間加工の場合に比して同等遜色のない表面
状警部ち何等割れを発生しない製品をうる加工方法を開
発したものである。As a result of intensive research in view of the current situation, the present invention has been developed as a processing method for phosphor bronze, in which a thin bronze ingot is rolled by hot working, but the surface is comparable to that obtained by cold working. This is a process that has been developed to produce a product that does not cause any cracks.
本発明方法はＳｎ ３〜１２ ｗｔ４ 、 Ｐ ０．０
１〜０、５ ｗｔＱ＆ 、残部Ｃｕからなるりん青銅の
鋳塊を加工率１０〜３０１にて熱間加工を行った後、冷
却し再度加熱して熱間加工を施すことを特徴とするもの
である。The method of the present invention is Sn 3-12 wt4, P 0.0
It is characterized by hot working a phosphor bronze ingot consisting of 1 to 0, 5 wtQ&, the balance being Cu at a processing rate of 10 to 301, then cooling and heating again to perform hot working. be.
即ちシん青銅の鋳塊について種々の加工率にて熱間加工
例えば熱間圧延を行ったところ、１回目の熱間圧延率ｔ
″１０〜３０％の範囲により行い、一旦冷却した後再度
加熱することｋよυ通常の銅合金にて行われている９０
〜９５％程度の熱間圧延を行っても同等亀裂を生じない
ことを見出したものである。That is, when a thin bronze ingot is hot worked, for example, hot rolled, at various working rates, the first hot rolling rate t
It is carried out in the range of 10 to 30%, cooled once and then heated again.90
It has been found that even if hot rolling is carried out by about 95%, equivalent cracks do not occur.
本発明方法は第１回目の熱間加工を１０〜３０係の加工
率にて行うことが極めて重要であシ、この加工率を１０
〜３０チに限定した理由は、１０チ未満にて行った場合
には、加工が不十分なため熱間加工後の冷却過稈及び再
熱過程において微細な再結晶粒が充分に生成せず更に熱
間加工を行わんとすると表面に亀裂を生ずるためである
。又３０％を超えた場合には圧延板の表面に亀裂を生じ
２回目の熱間加工時にこれが大きな亀裂に成長するため
である。In the method of the present invention, it is extremely important to perform the first hot working at a processing rate of 10 to 30.
The reason for limiting it to ~30 inches is that if it is less than 10 inches, the processing will be insufficient and fine recrystallized grains will not be sufficiently generated during the cooling overculm and reheating process after hot working. This is because if further hot working is attempted, cracks will occur on the surface. Moreover, if it exceeds 30%, cracks will occur on the surface of the rolled plate, and these will grow into large cracks during the second hot working.
なお熱間加圧の加熱温度は６００〜８００℃の範囲にて
行うことが望ましく、６００℃未満では十分に加工する
ことが出来ず、８００℃を超えた場合には、加熱に余分
なエネルギーを要し、経済的でないためである。The heating temperature for hot pressing is preferably in the range of 600 to 800°C; if it is less than 600°C, sufficient processing will not be possible, and if it exceeds 800°C, excess energy will be required for heating. This is because it is expensive and not economical.
又本発明方法において熱間加工後、冷却するものである
が、その温度は常温附近まで冷却することが必要である
。Further, in the method of the present invention, cooling is performed after hot working, and the temperature must be cooled to around room temperature.
本発明方法はシん青銅の加工方法において熱間加工によ
シ行いうるため従来の冷間加工に対し変形抵抗を極めて
小さくして加工を行うことが出来る。即ちシん青銅は硬
質な鋼合金であるするものであるが、熱間加工を行うと
とｋより上記の中間焼鈍を行うことなく、動力費は低減
し且つ通常の工具忙よシ加工することが出来る。Since the method of the present invention can be applied to hot working in the method of working thin bronze, it is possible to perform working with extremely low deformation resistance compared to conventional cold working. In other words, thin bronze is a hard steel alloy, but when hot worked, the above intermediate annealing is not required, power costs are reduced, and processing can be performed using normal tools. I can do it.
高周波溶解炉により銅を溶解し、これＫＳｎ全添加した
後、Ｐで脱酸し連続水冷鋳造によシ鋳造を行って、第１
表に示す組成からなるり人青銅陶塊（厚さ１００ ｙｍ
、巾２５０ ｍｐｍ 、 ３００ｋｌ？／１チヤージ
）を作製した。この鋳塊を６００６〜７５０℃の範囲で
加熱し、種々の加工率にて熱間圧延を行い、常＠に冷却
せしめた後、再度６００６〜７５０℃の範囲で加熱を行
って厚さ１０ｍ及び５ｆｉまで熱間圧延を行って本発明
りん青銅板をえた。After melting copper in a high frequency melting furnace and adding all KSn to it, it was deoxidized with P and cast by continuous water cooling casting.
Bronze pottery ingot (thickness 100 ym) consisting of the composition shown in the table
, width 250 mpm, 300kl? /1 charge) was produced. This ingot was heated in the range of 6006 to 750°C, hot rolled at various processing rates, cooled to normal temperature, and then heated again in the range of 6006 to 750°C to achieve a thickness of 10 m and A phosphor bronze plate of the present invention was obtained by hot rolling to 5fi.
なお本発明りん青銅板と比較するために、上記のりん青
銅鋳塊ｆ、Ｅ１表に示す如く本発明方法以外の条件にて
圧延を行って比ｖｇＡＩりん青銅板をえた。In order to compare with the phosphor bronze plate of the present invention, the phosphor bronze ingots f and E1 were rolled under conditions other than the method of the present invention to obtain comparative vgAI phosphor bronze plates.
斯くして得た本発明りん青銅板及び比咬例りん青銅板に
ついて、その表面のわれ発生の有無を試験した。その結
果は第１表に示す通シである。The thus obtained phosphor bronze plates of the present invention and the phosphor bronze plates of the comparative example were tested for the presence or absence of cracks on their surfaces. The results are shown in Table 1.
上表より明らかの如く本発甲方法による場合には、表面
に全く割れが発生せず良好な圧延りん青銅板をえること
が出来た。As is clear from the table above, when using the present method, a good rolled phosphor bronze plate could be obtained with no cracks occurring on the surface.
これに対し墓１１〜１３の如く、最初の熱間圧延を行う
ことなく、シん青銅鋳塊を直接厚さ１０ｍ＋迄熱間間圧
を行った場合にはその表面に大きな割れを発生し、後加
工が不可能であり、製品として使用出来ないものであっ
た。又ム１７〜２０の如１１回目の熱間圧延を３２〜３
５憾の範囲にて行った場合には該圧延後において板の表
面に小さな割れを生じ第２回目の熱間圧延においてこの
割れが大きな割れに成長しその後の加工が不可能であっ
た。又墓１４〜１６の如く第１回目の熱間圧延が１０１
未満の場合には何れも表面に割れを発生しその後の加工
が不可能であった。On the other hand, when the thin bronze ingot was directly hot-pressed to a thickness of 10m+ without first hot rolling, as in Tombs 11 to 13, large cracks occurred on the surface. Post-processing was not possible, and it could not be used as a product. In addition, the 11th hot rolling was carried out as shown in steps 17 to 20.
When rolling was carried out in a range of 5.5 degrees, small cracks were formed on the surface of the plate after the rolling, and these cracks grew into large cracks in the second hot rolling, making subsequent processing impossible. Also, as shown in Graves 14 to 16, the first hot rolling was 101
In all cases below, cracks occurred on the surface and subsequent processing was impossible.
〔効果〕
以上詳述した如く本発明方法によれば製造工程を短縮し
うると共に製品コストを著しく低減しうる等工業的に極
めて有用である。[Effects] As detailed above, the method of the present invention is extremely useful industrially, as it can shorten the manufacturing process and significantly reduce product costs.
Claims (2)
ｔ％、残部Ｃｕからなるりん青銅の鋳塊を加工率１０〜
３０％にて熱間加工を行った後、冷却し再度加熱して熱
間加工を施すことを特徴とするりん青銅の加工方法。(1) Sn 3-12wt%, P 0.01-0.5w
A processing rate of 10~ for a phosphor bronze ingot consisting of t% and the remainder Cu
A method for processing phosphor bronze, which is characterized by hot working at 30%, then cooling and heating again to perform hot working.
うことを特徴とする特許請求の範囲第１項記載のりん青
銅の加工方法。(2) The method for processing phosphor bronze according to claim 1, characterized in that the hot working is carried out at a temperature in the range of 600° to 800°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25114284A JPS61130478A (en) | 1984-11-28 | 1984-11-28 | Method for working phosphor bronze |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25114284A JPS61130478A (en) | 1984-11-28 | 1984-11-28 | Method for working phosphor bronze |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61130478A true JPS61130478A (en) | 1986-06-18 |
| JPH0571659B2 JPH0571659B2 (en) | 1993-10-07 |
Family
ID=17218295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25114284A Granted JPS61130478A (en) | 1984-11-28 | 1984-11-28 | Method for working phosphor bronze |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130478A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7351372B2 (en) | 2003-01-22 | 2008-04-01 | Dowa Mining Co., Ltd. | Copper base alloy and method for producing same |
| JP2020033648A (en) * | 2013-03-15 | 2020-03-05 | マテリオン コーポレイション | Process for producing hot worked spinodal alloy having uniform grain size |
-
1984
- 1984-11-28 JP JP25114284A patent/JPS61130478A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7351372B2 (en) | 2003-01-22 | 2008-04-01 | Dowa Mining Co., Ltd. | Copper base alloy and method for producing same |
| JP2020033648A (en) * | 2013-03-15 | 2020-03-05 | マテリオン コーポレイション | Process for producing hot worked spinodal alloy having uniform grain size |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0571659B2 (en) | 1993-10-07 |
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