JPH04259344A - Alloy for metal mold for molding - Google Patents
Alloy for metal mold for moldingInfo
- Publication number
- JPH04259344A JPH04259344A JP2209991A JP2209991A JPH04259344A JP H04259344 A JPH04259344 A JP H04259344A JP 2209991 A JP2209991 A JP 2209991A JP 2209991 A JP2209991 A JP 2209991A JP H04259344 A JPH04259344 A JP H04259344A
- Authority
- JP
- Japan
- Prior art keywords
- metal mold
- alloy
- mold
- mechanical strength
- molding
- 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
- 229910052751 metal Inorganic materials 0.000 title abstract description 6
- 239000002184 metal Substances 0.000 title abstract description 6
- 238000000465 moulding Methods 0.000 title abstract description 4
- 229910045601 alloy Inorganic materials 0.000 title description 18
- 239000000956 alloy Substances 0.000 title description 18
- 239000010949 copper Substances 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 7
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 238000010137 moulding (plastic) Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 102220259718 rs34120878 Human genes 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】この発明は、機械的強度に優れ、
鋳造や加工が容易であり、しかも溶接性が良好な、成形
金型用合金に関する。[Industrial Application Field] This invention has excellent mechanical strength and
This invention relates to an alloy for forming dies that is easy to cast and process and has good weldability.
【0002】0002
【従来の技術】従来、プラスチック成形用金型、特に射
出成形用金型の素材としては、S55C系の機械構造用
炭素鋼が汎用されていた。この機械構造用炭素鋼は、強
度、溶接性、しぼ加工性、磨き加工性等が良好であるば
かりでなく、被削性にも優れており、かつ、金型用素材
の中では比較的安価であるという特徴を有しているから
である。一方、特に鏡面仕上げを必要とする金型におい
ては、プレハードン鋼等が用いられていた。BACKGROUND OF THE INVENTION Conventionally, S55C carbon steel for mechanical structures has been widely used as a material for plastic molding molds, particularly injection molding molds. This carbon steel for machine structures not only has good strength, weldability, graining workability, polishing workability, etc., but also excellent machinability, and is relatively inexpensive among mold materials. This is because it has the following characteristics. On the other hand, pre-hardened steel and the like have been used especially in molds that require a mirror finish.
【0003】近年、事務用機器等の各種機器のハウジン
グや構成部材、自動車構成部材等がプラスチック化され
るとともに、これらの性能の向上やデザインの変更に伴
い、頻繁なモデルチェンジが行われている。これに伴い
、プラスチック成形品のライフサイクルが短くなり、多
品種少量生産となってきている。そのため、そのような
プラスチック成形品を成形するための金型に関し、低価
格化や短納期化の要求が強くなってきている。[0003] In recent years, housings and constituent parts of various types of equipment such as office equipment, and automobile constituent parts have been made of plastic, and frequent model changes are being made to improve their performance and change their designs. . As a result, the life cycle of plastic molded products has become shorter, leading to high-mix, low-volume production. Therefore, there is an increasing demand for lower prices and shorter delivery times for molds for molding such plastic molded products.
【0004】ところで、前記機械構造用炭素鋼のような
素材を用いて金型を製作す場合には、切削加工等の多く
の機械加工工程が必要とされ、その機械加工費が金型製
作コストの大半を占めている。そのため、多品種少量生
産用金型に求められている、金型の低価格化や納期の短
縮化には対応できなかった。そのため、試作金型用とし
てZAS(商品名、三井金属工業社製)等の低融点で加
工性のよい亜鉛基合金を砂型鋳造することにより、切削
加工等の機械加工を極力削減した形状に賦形し、これに
倣い加工や研磨等の仕上げ工程を施して金型を製作する
方法が提案されている。By the way, when manufacturing a mold using a material such as the carbon steel for machine structures, many machining processes such as cutting are required, and the machining cost increases the mold manufacturing cost. occupies the majority of As a result, it was not possible to meet the requirements for lower mold prices and shorter delivery times, which are required for molds for high-mix, low-volume production. Therefore, by sand casting a zinc-based alloy with a low melting point and good workability, such as ZAS (trade name, manufactured by Mitsui Kinzoku Kogyo Co., Ltd.), for the prototype mold, it is formed into a shape that requires as little machining as possible, such as cutting. A method has been proposed in which a metal mold is manufactured by shaping the mold and subjecting it to finishing processes such as copying and polishing.
【0005】これによれば、量産金型のように、鍛造し
た大型鋼材ブロックの切削加工により製作する金型に比
べ、加工速度が早いため、安価になるとともに、納期の
短縮につながるという利点を有している。しかし、上記
の亜鉛基合金は、強度や硬度等の機械的物性が鍛造鋼材
に比してかなり劣るため、設計上かなりの余裕をみて設
計せねばならず、また、鏡面仕上げができず使用できる
製品の範囲が限られていた。さらに、ピンホール、引け
巣等の鋳造欠陥の発生を防ぐことが難しく、そのため溶
接等による補修が必須となるが、冷却条件が溶接部近傍
で著しく変化するため、組織にむらが発生し、それが成
形品に転写されるなどの問題を有していた。[0005] According to this method, compared to a mass-produced mold that is manufactured by cutting a large forged steel block, the machining speed is faster, which has the advantage of being cheaper and shortening the delivery time. have. However, the mechanical properties of the zinc-based alloys mentioned above, such as strength and hardness, are considerably inferior to those of forged steel materials, so a considerable margin must be taken into consideration in the design, and mirror finishing is not possible, making it difficult to use. The range of products was limited. Furthermore, it is difficult to prevent casting defects such as pinholes and shrinkage cavities, which requires repair by welding, etc. However, since the cooling conditions change significantly near the weld, unevenness occurs in the structure and There were problems such as transfer of the image onto the molded product.
【0006】また、アルミニウム合金や銅合金も、同様
の目的に使用されてきているが、前者は、硬度が低いた
めに鏡面性に劣るとともにピンホール、引け巣等の鋳造
欠陥が発生し易く、溶接性も著しく悪いため、一旦生じ
た鋳造欠陥の補修、加工ミスに起因する金型の補修は実
質上不可能であった。後者の銅合金は硬度が低く鏡面性
が出ない等の問題点があった。[0006] Aluminum alloys and copper alloys have also been used for similar purposes, but the former have poor specularity due to their low hardness and are susceptible to casting defects such as pinholes and shrinkage cavities. Since weldability was also extremely poor, it was virtually impossible to repair casting defects once they had occurred or to repair molds caused by processing errors. The latter copper alloy has problems such as low hardness and lack of specularity.
【0007】[0007]
【発明が解決しようとする課題】この発明は、上記のよ
うな現状に鑑み、機械的強度に優れ、かつ、鋳造や加工
が容易でしかも溶接性のよい、プラスチックの成形金型
用として好適な合金を提供することを目的とする。[Problems to be Solved by the Invention] In view of the above-mentioned current situation, the present invention has been made to provide a plastic mold that has excellent mechanical strength, is easy to cast and process, and has good weldability. The purpose is to provide alloys.
【0008】[0008]
【課題を解決するための手段】この発明の成形金型用合
金は、重量百分率でアルミニウム5〜15%、鉄2〜5
%、ニッケルもしくは(及び)コバルト1〜4%、マン
ガン3〜10%及び残部が銅からなることを特徴とする
ものである。この発明の合金において、アルミニウムは
銅とともに主成分をなすもので、銅と合金化することで
機械的強度を向上させるものであり、その含有量を重量
百分率で5〜15%としているのは、5%未満では大き
な効果が期待できず、15%を超えると脆性が増し、衝
撃強度に著しい低下をきたすからである。[Means for Solving the Problems] The alloy for forming molds of the present invention has a weight percentage of 5 to 15% aluminum and 2 to 5% iron.
%, 1-4% nickel or/and cobalt, 3-10% manganese, and the balance copper. In the alloy of this invention, aluminum is a main component along with copper, and the mechanical strength is improved by alloying with copper, and the reason why the content is 5 to 15% by weight is that This is because if it is less than 5%, no great effect can be expected, and if it exceeds 15%, brittleness increases and impact strength is significantly reduced.
【0009】鉄を含有させることにより、機械的強度特
に硬度向上が図られるが、その含有量を重量百分率で2
〜5%としているのは、2%未満では成形金型用として
十分な硬度のものとならず、5%を超えると脆化が著し
くなるからである。ニッケルもしくは(及び)コバルト
は、合金の硬度、耐食性を向上させるものであり、その
含有量を重量百分率で総量1〜4%としているのは、1
%未満では十分な効果が得られず、4%を超えると脆性
が増してしまうからである。Mechanical strength, especially hardness, can be improved by including iron, but the content is 2% by weight.
The reason why it is set at ~5% is that if it is less than 2%, it will not have sufficient hardness for a mold, and if it exceeds 5%, it will become extremely brittle. Nickel or (and) cobalt improves the hardness and corrosion resistance of the alloy, and the total content of nickel or cobalt is 1 to 4% by weight.
This is because if it is less than 4%, a sufficient effect will not be obtained, and if it exceeds 4%, brittleness will increase.
【0010】また、マンガンは機械的強度の向上させる
ために必要であり、その含有量を重量百分率で3〜10
%としているのは、3%未満では十分な効果が得られず
、10%を超えると脆性が増してしまうからである。
さらに、この発明の合金においては、上記の元素以外に
混入の可能性のある全ての元素が不純物(不可避的不純
物)として存在することは許される。その含有量につい
ては、粒界腐食がどの程度問題になるかにより変わって
くるが、通常、重量百分率で0.1%以内とするのが好
ましい。[0010] Manganese is also necessary to improve mechanical strength, and its content should be adjusted to 3 to 10% by weight.
% because if it is less than 3%, a sufficient effect cannot be obtained, and if it exceeds 10%, brittleness increases. Furthermore, in the alloy of the present invention, all elements that may be mixed in other than the above-mentioned elements are allowed to exist as impurities (inevitable impurities). Its content varies depending on the extent to which intergranular corrosion becomes a problem, but it is usually preferably within 0.1% by weight.
【0011】この発明の合金は、最終金型形状に近い形
状に鋳造し、この鋳造品を後加工により仕上げることに
より成形金型を製作するのが通常の使用態様であるが、
素材ブロックに鋳造し、これを機械加工することにより
金型を製作することも可能である。[0011] The alloy of the present invention is normally used to produce a mold by casting it into a shape close to the final mold shape and finishing this cast product through post-processing.
It is also possible to manufacture a mold by casting into a material block and machining it.
【0012】0012
【作用】この発明の合金は、上記のとおりの組成のアル
ミニウム青銅系合金であって溶接性がよく、強度及び硬
度が著しく向上したものとなっているので、耐磨耗性に
優れて耐久性があり、鋳造用金型材料として極めて好適
な素材である。[Function] The alloy of the present invention is an aluminum-bronze alloy with the composition as described above, and has good weldability and significantly improved strength and hardness, so it has excellent wear resistance and durability. This makes it an extremely suitable material for casting molds.
【0013】[0013]
【実施例】次に、この発明の実施例を説明する。表1に
示すとおりの組成の合金(実施例1〜5、比較例1〜4
)を溶製し、これを砂型閉鎖鋳型を用い、それぞれ試験
片を鋳造した。なお、比較例4は、亜鉛基合金のZAS
である。得られた試験片について、引張強度及びブリネ
ル硬度を測定した。その結果を表1に併せ示す。[Example] Next, an example of the present invention will be described. Alloys with compositions as shown in Table 1 (Examples 1 to 5, Comparative Examples 1 to 4)
) was melted and a test piece was cast using a closed sand mold. In addition, Comparative Example 4 is a zinc-based alloy ZAS
It is. The tensile strength and Brinell hardness of the obtained test piece were measured. The results are also shown in Table 1.
【0014】なお、原料としては、各成分とも、純度9
9.99%以上の高純度のものを使用した。この結果か
ら明らかなように、実施例の合金は、いずれも引張強度
が65kg/mm2以上、ブリネル硬度が160以上の
値を示し、比較例の合金に比し、機械的強度、硬度とも
格段に優れており、鋳造用金型材料として好適な素材で
あることが分かった。[0014] As raw materials, each component has a purity of 9
A high purity product of 9.99% or higher was used. As is clear from the results, all of the alloys of the examples exhibited tensile strength of 65 kg/mm2 or more and Brinell hardness of 160 or more, and were significantly superior in both mechanical strength and hardness compared to the comparative example alloys. It was found that the material was excellent and suitable as a casting mold material.
【0015】[0015]
【表1】[Table 1]
【0016】[0016]
【発明の効果】以上のとおり、この発明の合金は、鋳造
用合金として、機械的強度や硬度が極めて高く、耐磨耗
性に優れている。したがって、この合金を用いることに
より、鋳造法により耐久性に優れた成形金型を容易に製
造することができ、鍛造鋼材を用いるのに比して機械加
工工数を大幅に逓減でき、成形金型の低価格化及び短納
期化を実現できる。[Effects of the Invention] As described above, the alloy of the present invention has extremely high mechanical strength and hardness and is excellent in wear resistance as a casting alloy. Therefore, by using this alloy, it is possible to easily manufacture molding dies with excellent durability using the casting method, and the number of machining steps can be significantly reduced compared to using forged steel. It is possible to achieve lower prices and shorter delivery times.
Claims (1)
、鉄2〜5%、ニッケルもしくは(及び)コバルト1〜
4%、マンガン3〜10%及び残部が銅からなることを
特徴とする成形金型用合金。[Claim 1] 5-15% aluminum by weight percentage
, 2-5% iron, 1-1% nickel or/and cobalt
4% manganese, 3 to 10% manganese, and the balance copper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2209991A JPH04259344A (en) | 1991-02-15 | 1991-02-15 | Alloy for metal mold for molding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2209991A JPH04259344A (en) | 1991-02-15 | 1991-02-15 | Alloy for metal mold for molding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04259344A true JPH04259344A (en) | 1992-09-14 |
Family
ID=12073438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2209991A Pending JPH04259344A (en) | 1991-02-15 | 1991-02-15 | Alloy for metal mold for molding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04259344A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102242291A (en) * | 2011-07-15 | 2011-11-16 | 宁波金田铜业(集团)股份有限公司 | Copper alloy of deep drawing mould |
CN106566946A (en) * | 2016-10-19 | 2017-04-19 | 苏州东方模具科技股份有限公司 | Rare earth-copper alloy glass mold and preparation method thereof |
CN106636728A (en) * | 2016-12-19 | 2017-05-10 | 苏州天兼新材料科技有限公司 | Cast bronze alloy material and preparation method thereof |
WO2022070905A1 (en) * | 2020-09-30 | 2022-04-07 | 三協オイルレス工業株式会社 | Manganese-aluminum bronze casting alloy |
-
1991
- 1991-02-15 JP JP2209991A patent/JPH04259344A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102242291A (en) * | 2011-07-15 | 2011-11-16 | 宁波金田铜业(集团)股份有限公司 | Copper alloy of deep drawing mould |
CN106566946A (en) * | 2016-10-19 | 2017-04-19 | 苏州东方模具科技股份有限公司 | Rare earth-copper alloy glass mold and preparation method thereof |
CN106636728A (en) * | 2016-12-19 | 2017-05-10 | 苏州天兼新材料科技有限公司 | Cast bronze alloy material and preparation method thereof |
WO2022070905A1 (en) * | 2020-09-30 | 2022-04-07 | 三協オイルレス工業株式会社 | Manganese-aluminum bronze casting alloy |
JP2022057204A (en) * | 2020-09-30 | 2022-04-11 | 三協オイルレス工業株式会社 | Manganese-aluminum bronze casting alloy |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102597784B1 (en) | A aluminum alloy and for die casting and method for manufacturing the same, die casting method | |
CN104471090B (en) | Aluminium alloy | |
US10525528B2 (en) | Aluminum alloy for die-casting, having improved corrosion resistance | |
CN100552071C (en) | High-density zinc-base alloy counterbalance and preparation method thereof | |
JPH04259344A (en) | Alloy for metal mold for molding | |
US11807918B2 (en) | Aluminum alloy for die casting and method for manufacturing aluminum alloy casting using the same | |
JPS6383251A (en) | Manufacture of high strength and high elasticity aluminum alloy | |
CN106334720A (en) | Die for improving internal textural structure of aluminum alloy stamped profile and manufacturing method | |
JPH057987A (en) | Production of metallic mold for molding plastic | |
EP0902097A1 (en) | Zinc-base alloy for mold, zinc-base alloy block for mold and method for preparing the same | |
CN100441713C (en) | Easy cutting high manganese copper content alloy | |
JP3152400B2 (en) | Hard zinc alloy for hardfacing welding and a mold having a hardfacing portion made of the alloy | |
JP2663352B2 (en) | High strength zinc alloy | |
JPH02200322A (en) | Mold and stock block for this mold | |
JPH0448040A (en) | High strength die alloy | |
JPH02107739A (en) | High-strength aluminum alloy for metal mold for molding and tool | |
JPH0320427A (en) | Alloy for high strength die | |
JPH0320426A (en) | Copper alloy for die | |
JPH0452241A (en) | High strength die alloy | |
JPH04262853A (en) | Manufacture of die for plastic forming | |
KR102245881B1 (en) | Brass fabricated with stainless steel scrap for water supplyuynt and manufacturing method for the same | |
JP3808322B2 (en) | Steel for free-cutting plastic molds with excellent mirror finish | |
KR101181846B1 (en) | High strength copper alloys for die casting | |
JPH02187308A (en) | Mold and material block for the same mold | |
JPH02205647A (en) | Metallic mold and stock block for metallic mold |