JPS63290231A - Brass material for mold - Google Patents
Brass material for moldInfo
- Publication number
- JPS63290231A JPS63290231A JP12276987A JP12276987A JPS63290231A JP S63290231 A JPS63290231 A JP S63290231A JP 12276987 A JP12276987 A JP 12276987A JP 12276987 A JP12276987 A JP 12276987A JP S63290231 A JPS63290231 A JP S63290231A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- brass
- brass material
- present
- workability
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 17
- 229910001369 Brass Inorganic materials 0.000 title claims abstract description 12
- 239000010951 brass Substances 0.000 title claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 229910052745 lead Inorganic materials 0.000 abstract description 2
- 229910052718 tin Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 244000145845 chattering Species 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/059—Mould materials or platings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、レンズ、スクリーン成形金型などとして用い
られる切削性の良好な黄銅材に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a brass material with good machinability that is used as a lens, screen molding mold, etc.
従来、大型テレビやプロジェクタ−などに用いられる微
細な構加工を施した樹脂レンズやスクリンーン（例えば
フレネルレンズやレンチキュラースクリーン）用の金型
として、切削性や加工性に優れている黄銅材が使用され
ている。しかし近年上記レンズの高精度化が要求される
ようになり従来では問題にならなかった金型切削溝加工
時に発生する微小なとビリやパリが成形後のレンズやス
クリーンの精度を低下させる原因として大きな問題とな
って来た。Traditionally, brass materials, which have excellent machinability and workability, have been used as molds for finely structured resin lenses and screens (such as Fresnel lenses and lenticular screens) used in large TVs and projectors. ing. However, in recent years, higher precision has been required for the lenses mentioned above, and minute cracks and cracks that occur during mold cutting groove processing, which were not a problem in the past, have become a cause of reducing the precision of lenses and screens after molding. It has become a big problem.
本発明は上記の問題について検討の結果、黄銅にＦｅま
たは／およびＰの少量を添加することにより切削性およ
び加工性を向上せしめた金型用黄銅材を開発したもので
ある。As a result of studies on the above-mentioned problems, the present invention has developed a brass material for molds that has improved machinability and workability by adding a small amount of Fe and/or P to brass.
〔問題点を解決するための手段および作用〕本発明は、
Ｆ ｅ ３．０ｗｔ％以下、または／およびＰ １．０
ｗｔ％以下、Ｃｕ ５８．０〜７２．０ｗｔ％、残部Ｚ
ｎと通常の不純物とからなる金型用黄銅材である。[Means and effects for solving the problems] The present invention has the following features:
Fe 3.0wt% or less, or/and P 1.0
wt% or less, Cu 58.0 to 72.0 wt%, balance Z
This is a brass material for molds consisting of n and normal impurities.
本発明の組成の黄銅に対するＦｅまたは／およびＰの添
加はフレネルレンズなどの金型として切削加工を行なっ
たときに発生する微小なビビリやパリの発生防止に極め
て有効であり、その量をＦ ｅ ３．０ｗｔ％以下、Ｐ
１．０ｗｔ％以下としたのは、それぞれこの範囲にお
いて充分な効果が得られるためである。この範囲を越え
るとビビリやパリの発生防止には有効ではあるが、熱間
、冷間圧延等における加工性を阻害するので好ましくな
い。またＦｅ、ＰＩの下限については極めて少量であっ
てもその効果が認められるので特に限定するものではな
い。The addition of Fe and/or P to brass having the composition of the present invention is extremely effective in preventing the occurrence of minute chatter and cracks that occur when cutting as a mold for Fresnel lenses, etc. 3.0wt% or less, P
The reason for setting the content to 1.0 wt% or less is that sufficient effects can be obtained within this range. If it exceeds this range, although it is effective in preventing the occurrence of chatter and flaking, it is not preferable because it impedes workability in hot and cold rolling. Further, the lower limits of Fe and PI are not particularly limited, as their effects are recognized even in extremely small amounts.
さらに本発明においてＣｕ５８．０〜７２．０ｗｔ％、
残部Ｚｎとしたのは、この組成範囲が通常釡型用黄銅材
として用いられているからである。また本発明における
不純物とは、通常の黄銅材に含有されているＰｂ、Ｓｎ
、、Ｎｉ等であり、その合計量がＱ、 １ｗｔ％以下で
あれば何ら差支えない。Furthermore, in the present invention, Cu58.0 to 72.0 wt%,
The reason why the remainder is Zn is that this composition range is usually used as a brass material for pot molds. In addition, the impurities in the present invention refer to Pb and Sn contained in ordinary brass materials.
, Ni, etc., and there is no problem as long as the total amount of Q is 1wt% or less.
以下に本発明の一実施例について説明する。 An embodiment of the present invention will be described below.
第１表に示す各組成の合金を大気中で溶解鋳造し、巾１
５０閣、長さ３００ｍ、厚さ３０−のスラブとした後、
熱間圧延、冷間圧延および焼鈍を繰り返し行なって最終
圧延率１５％で厚さｌＯ−の板材に加工した。これらの
材料について切削溝加工を行ない、ビビリ、パリの発生
状況を調査した。切削溝加工はダイヤモンドバイトを用
い、板材表面に図に示す断面形状のような溝深さ０．０
５ｍｍ、溝巾０．１−の溝を同心円状に加工した。切削
加工後のどビリ、パリ発生状況を第１表に示した。The alloys with the respective compositions shown in Table 1 were melted and cast in the atmosphere, and the width 1
After making 50 slabs, 300m long and 30mm thick,
Hot rolling, cold rolling and annealing were repeated to produce a plate material with a thickness of 10- at a final rolling reduction of 15%. Cutting grooves were machined on these materials, and the occurrence of chatter and cracking was investigated. A diamond cutting tool is used for cutting grooves, and a groove depth of 0.0 is created on the surface of the plate material as shown in the cross-sectional shape shown in the figure.
Concentric grooves with a width of 5 mm and a width of 0.1 mm were machined. Table 1 shows the occurrence of cracks and cracks after cutting.
第１表
第１表から明らかなように従来の黄銅材Ｎα１６〜１８
では切削加工面もしくは一部にビビリやパリが発生して
いるのに対し、本発明合金Ｎａ １−１２は切削加工面
全体にわたってビビリやパリの発生は全く認められず良
好な切削加工性を示した。また圧延加工性も良好であっ
た。一方Ｆｅ、Ｐの含有量の多い比較合金磁１３〜１５
は切削溝加工におけるビビリやパリの発生は認められな
かったが、冷間圧延時に表面割れが発生し加工性に劣る
ことが認められる。Table 1 As is clear from Table 1, conventional brass materials Nα16 to 18
In contrast, the alloy Na 1-12 of the present invention exhibits good machinability with no chatter or cracks observed over the entire machined surface. Ta. Moreover, the rolling workability was also good. On the other hand, comparative magnetic alloys 13 to 15 with high contents of Fe and P
Although no chattering or cracking was observed during cutting groove processing, surface cracking occurred during cold rolling and poor workability was observed.
以上に説明したように本発明によれば樹脂性レンズやス
クリーンなどの成型用金型として切削溝加工時のビビリ
やパリの発生を完全に防止でき、成形レンズ、スクリー
ン等の精度を向上させることができるもので工業上顕著
な効果を奏するものである。As explained above, according to the present invention, it is possible to completely prevent the occurrence of chattering and cracking when cutting grooves in a mold for molding resin lenses, screens, etc., and improve the precision of molded lenses, screens, etc. It has a remarkable industrial effect.
図は本発明における切削溝を付けた板材の一部断面図で
ある。
ｌ・・・供試材、 ２・・・切削溝加工部、 ３・・・
パリ。The figure is a partial sectional view of a plate material provided with cutting grooves according to the present invention. l... Test material, 2... Cutting groove processing section, 3...
Paris.
Claims (1)
下、Ｃｕ５８．０〜７２．０ｗｔ％、残部Ｚｎと通常の
不純物とからなる金型用黄銅材。A brass material for molds comprising Fe3.0wt% or less and/or P1.0wt% or less, Cu58.0 to 72.0wt%, the balance being Zn and normal impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12276987A JPS63290231A (en) | 1987-05-20 | 1987-05-20 | Brass material for mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12276987A JPS63290231A (en) | 1987-05-20 | 1987-05-20 | Brass material for mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63290231A true JPS63290231A (en) | 1988-11-28 |
Family
ID=14844159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12276987A Pending JPS63290231A (en) | 1987-05-20 | 1987-05-20 | Brass material for mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63290231A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117735A (en) * | 2019-05-07 | 2019-08-13 | 浙江天河铜业股份有限公司 | A kind of low-cost high-strength copper strips and its manufacturing method |
| CN110446795A (en) * | 2017-03-24 | 2019-11-12 | 株式会社Ihi | Abrasion performance ormolu and the mechanical device for using it |
-
1987
- 1987-05-20 JP JP12276987A patent/JPS63290231A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446795A (en) * | 2017-03-24 | 2019-11-12 | 株式会社Ihi | Abrasion performance ormolu and the mechanical device for using it |
| US11473172B2 (en) | 2017-03-24 | 2022-10-18 | Ihi Corporation | Wear-resistant copper-zinc alloy and mechanical device using same |
| CN110117735A (en) * | 2019-05-07 | 2019-08-13 | 浙江天河铜业股份有限公司 | A kind of low-cost high-strength copper strips and its manufacturing method |
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