JPS59133357A - Prehardened material for metallic mold for molding plastic - Google Patents
Prehardened material for metallic mold for molding plasticInfo
- Publication number
- JPS59133357A JPS59133357A JP712083A JP712083A JPS59133357A JP S59133357 A JPS59133357 A JP S59133357A JP 712083 A JP712083 A JP 712083A JP 712083 A JP712083 A JP 712083A JP S59133357 A JPS59133357 A JP S59133357A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- mold
- present
- hardening
- heat treatment
- 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
- Moulds For Moulding Plastics Or The Like (AREA)
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は熱伝導性、耐食性にすぐれ、放電加工時表面硬
化を示さず、かつ強度１．被切削性、鏡面仕上性、溶接
性などプラスチック成形用型材として必要な諸性質を兼
備した新しい０ｕ−Ｎｉ−８ｉ系ブリハードン型材料に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention has excellent thermal conductivity and corrosion resistance, does not show surface hardening during electric discharge machining, and has a strength of 1. The present invention relates to a new 0u-Ni-8i type brihardon mold material that has various properties necessary as a mold material for plastic molding, such as machinability, mirror finish, and weldability.
プラスチック成形の分野においても成形サイク′し時間
の短縮などを目的として熱伝導性の大きい型材料が要求
されているが、従来の７ｅ糸材料の場合熱伝導性に限界
があり、金型内部に水冷を施してもサイクル時間の大幅
な短縮は困難であった。In the field of plastic molding, mold materials with high thermal conductivity are required in order to shorten the molding cycle time, but conventional 7e yarn materials have a limited thermal conductivity and cannot be used inside the mold. Even with water cooling, it was difficult to significantly shorten the cycle time.
一方、熱伝導性の大きい純銅などを本用途の金型に使用
しても強度不足のため型締めによる金型のへたりのため
早期寿命をまねき、また溶接補修困難などのために実用
化が困難であった。On the other hand, even if materials such as pure copper, which have high thermal conductivity, are used for molds for this purpose, the strength is insufficient and the molds become sag due to mold clamping, leading to premature end-of-life and difficulties in welding repairs, making practical use difficult. It was difficult.
本発明はＮｉ−８ｉ析出強化型Ｏｕ合金として知られる
Ｏｕ −Ｎｉ−Ｓｉ系合金を適切な成分範囲、熱処理状
態の組合わせでプラスチック成形用金型材料として適用
し、すぐれた熱伝導性をもち、成形サイクル時間の短縮
を可能とし、型締めの圧力に耐え良好な型寿命をもたら
し、また型加工、溶接も容易で、型仕上加工能率を阻害
する放電加工面の硬化を示さず、また使用中の発錆に対
する抵抗も大きく、プラスチック成形用型材料としてす
ぐれた総合性能を発揮することを見出したことにもとず
くもので、新しい高熱伝導性、耐食プリハードン金型材
料を提供するものである。The present invention uses an Ou-Ni-Si alloy known as a Ni-8i precipitation-strengthened Ou alloy as a mold material for plastic molding with an appropriate composition range and combination of heat treatment conditions, and has excellent thermal conductivity. , enables shortening of molding cycle time, withstands mold clamping pressure and provides good mold life, is easy to mold and weld, does not show hardening of the electrical discharge machining surface that inhibits mold finishing processing efficiency, and can be used This is based on the discovery that it has high resistance to rust inside and exhibits excellent overall performance as a mold material for plastic molding, and provides a new high thermal conductivity and corrosion-resistant prehardened mold material. .
第１表に本発明材料の成分例および焼入温度９００Ｃよ
り各種冷却速度で焼入冷却後５００ＣＸ ３ｈ時効硬化
処理した場合の硬さを示す。焼入冷却速度の低下にした
がってｅ硬さは減少する。本用途の金型材料として必要
な硬さＨＲＯ３以上を確保するための限界の焼入冷却速
度は半没時間４０ｍ１ｎの冷却速度である０
第２表に本発明材料の熱伝導率を示す。Table 1 shows examples of the components of the materials of the present invention and the hardness when the materials were subjected to age hardening treatment at 500CX for 3 hours after quenching and cooling at various cooling rates from a quenching temperature of 900C. The e-hardness decreases as the quenching cooling rate decreases. The critical quenching cooling rate to ensure a hardness of HRO3 or higher, which is required as a mold material for this purpose, is a cooling rate with a half-immersion time of 40 m1n.Table 2 shows the thermal conductivity of the materials of the present invention.
第 ２ 表
本発明材料は純銅Ｇよりも熱伝導率は低いが、たとえは
熱間工具鋼の００７と比較して明らかに高いレベルにあ
る。Table 2 The thermal conductivity of the materials of the present invention is lower than that of pure copper G, but it is clearly at a higher level than, for example, hot work tool steel 007.
第３表に本発明材料の被切削性を示す。Table 3 shows the machinability of the materials of the present invention.
第３表
Ｊ工Ｓ ５０Ｍ４（ＨＲＯ２０）の被切削性を１００と
して指数で示したものである。指数が大きい程被切削性
が良いことを示す。Table 3 shows the machinability of J-Work S 50M4 (HRO20) as an index, with the machinability being 100. The larger the index, the better the machinability.
本発明材料は５０Ｍ４（ＨＲＯ２０）と同じレベルある
いはそれより良好な被切削性を備えていることがわかる
Ｏ
第４表に本発明材料および５０Ｍ４（ＨＲＯ２０）の塩
水雰囲気中における耐発門試験結果を示す。It can be seen that the material of the present invention has the same level of machinability as 50M4 (HRO20) or better than that of 50M4 (HRO20). show.
第 ４ 表
塩水雰囲気中に１０ｈｒ放置した場合の発錆個数をカウ
ントしたものを、Ｓ ０Ｍ４（ＨＲＯ２Ｑ ）を１００
として個数比で示したものである。Table 4 The number of rusted particles counted when left in a salt water atmosphere for 10 hours, S0M4 (HRO2Q) is 100
This is expressed as a number ratio.
本発明材料は発錆個数が格段に少なく耐発錆性がすぐれ
ていることがわかる。It can be seen that the material of the present invention exhibits excellent rust resistance with a significantly smaller number of rusted particles.
これは含Ｎ１銅合金が鉄系材料に対比して本質的にすぐ
れている特性によるものであり、また点食発生の原因と
なるような異相を含まないためである。。This is because the N1-containing copper alloy has inherently superior properties compared to iron-based materials, and also because it does not contain foreign phases that would cause pitting. .
第５表は本発明材料の鏡面仕上性（耐ビット性）。Table 5 shows the mirror finish (bit resistance) of the materials of the present invention.
をＳ ０Ｍ４ （ＨＲＯ２０）と対比して示したもので
ある。is shown in comparison with S 0M4 (HRO20).
試料は５０闘φで、熱処理後グラインダー→ペーパー→
ダイヤモンドコンパウンド方式にて鏡面仕上を行ない、
１０倍の拡大鏡を用いて微細なピット発生個数をカウン
トしたものである。本発明材料はきわめてすぐれた鏡面
仕上性を備えていることかわかる。The sample has a diameter of 50mm, and after heat treatment, it is grinded → paper →
A mirror finish is achieved using the diamond compound method.
The number of minute pits generated was counted using a 10x magnifying glass. It can be seen that the material of the present invention has an extremely excellent mirror finish.
これは鉄系材料のように脱酸剤としてのＡｔなどを使用
せず、したがってアルミナ系など硬質の介在物を含まな
いためである。This is because it does not use At or the like as a deoxidizer unlike iron-based materials, and therefore does not contain hard inclusions such as alumina-based materials.
第６表に本発明材料の放電加工における放電加工硬化層
の生起状況の有無を５０Ｍ４と比較してテストした結果
を示す。Table 6 shows the results of testing the presence or absence of an electrical discharge machining hardened layer during electrical discharge machining of the material of the present invention in comparison with 50M4.
第 ６ 表
本発明材料はまったく放電硬化を示さないことがわかる
。Table 6 It can be seen that the materials of the invention do not show any discharge hardening.
第７表に本発明材料の溶接性を示す。Table 7 shows the weldability of the materials of the present invention.
溶接方法は１００趨φＸ５０期厚さのブロック試験片の
中央に１５關φｘ 櫨ａｘｖＩ深さのくほみをっけ、４
５０ｃに予熱後Ｔｉｇ溶接によりとも材溶接肉盛を杓な
ったものである。本発明材料は溶接肉盛可能であり、断
Ｇは熱伝導性がとくに大きいため溶渉部の昇温か行なわ
れにくく、正常な肉盛が困難となったものである。The welding method was to make a hole with a depth of 15 mm in diameter in the center of a 100 mm diameter x 50 mm thick block test piece.
After preheating to 50c, the material was welded overlay by TIG welding. The material of the present invention can be overlaid by welding, but since the cut G has particularly high thermal conductivity, it is difficult to raise the temperature of the welded part, making normal overlay difficult.
つぎに本発明材料の成分限定の理由についてのべる。Next, the reasons for limiting the ingredients of the material of the present invention will be discussed.
Ｎｉ、Ｓｉは固溶化処理により基地に固溶し、時効処理
によりＮニー８１金島間化合物を析出し本願発明材料と
しての必要な強度、熱伝導性、被切削性などを付与する
ために添加する。多すぎると熱伝導率を過度に低下させ
、また低すぎると上記添加の効果か得られないのでＮ１
はＺ５０−６．００％、Ｓｉ０．４０−２−００％とす
る。Ni and Si are added to form a solid solution in the matrix through solid solution treatment, and precipitate N-nee 81 intermetallic compound through aging treatment to impart strength, thermal conductivity, machinability, etc. necessary for the material of the present invention. . If the amount is too high, the thermal conductivity will decrease excessively, and if it is too low, the effect of the above addition cannot be obtained.
are Z50-6.00% and Si0.40-2-00%.
Ｎｉ、Ｓｉのより望ましい範囲はＮ１３．ＯＮ５．００
％、Ｓ１０．５０〜１．５０％である。A more desirable range of Ni and Si is N13. ON5.00
%, S10.50-1.50%.
熱処理は固溶化処理温度としてａ ５ｏ−ＪＱ ５０Ｃ
に管理し、結晶粒の粗大化、溶融相の生成を防ぎ、焼入
冷却速度は過大な残留応力の生成を防ぐため寸法形状等
に応じて半没時間４０ ｍｉｎよりはやい冷却速度範
蔦□囲内にコントロールを行なう。The heat treatment is at the solution treatment temperature of a 5o-JQ 50C.
In order to prevent the coarsening of crystal grains and the formation of molten phase, the quenching cooling rate should be within the range of half-immersion time of 40 min or faster depending on the size and shape, etc. to prevent the coarsening of crystal grains and the formation of molten phase. control.
時効処理温度は本発明材料としての強度を得るため４．
００−５５０７：の範囲を標準とする。4. The aging treatment temperature is set to obtain the strength of the material of the present invention.
The standard range is 00-5507.
半没時間４０ ｍｉｎより遅い冷却では本用途の金型と
して必要なＨＲＯ３以上の硬さが得られない場合があり
また一方、硬さが高すぎると被切削性の減少をともなう
のでＨＢＯ３６以下とする。If the cooling time is slower than 40 min, it may not be possible to obtain the hardness of HRO3 or higher required for the mold for this purpose.On the other hand, if the hardness is too high, the machinability will decrease, so the hardness should be set to HBO36 or lower. .
本発明材料をプラスチック成形用金型として使用し、内
部水冷の効果を大きくシ、５０Ｍ４金型に対比して成形
時間を大幅に短縮できることが判明した。It has been found that when the material of the present invention is used as a mold for plastic molding, the effect of internal water cooling can be greatly increased, and the molding time can be significantly shortened compared to a 50M4 mold.
また鍛造性、鋳造性とも作業条件を管理することにより
非常に良好とすることができることが判明した。It has also been found that both forgeability and castability can be made very good by controlling the working conditions.
以上の通り、本願発明材料はＮｉ’−８ｉ金金属化合物
の析出による強化を利用したＯｕ −Ｎｉ−３ｉ糸材料
において、プラスチック成形用金型材料として必要な強
度、きわめてすぐれた熱伝導性を備え、かつ被切削性、
鏡面仕上性にすぐれ、放電硬化を示さず、放電加工後の
仕上加工が容易であり、溶接性が良く、耐食性にすぐれ
た材料組成、熱処理の適切な組合わせを横割の結果得ら
れたプリハードン金型材料であり、成形サイクル時間の
短縮などプラスチック成形作業の合理化に大きく寄与す
るものである。As described above, the material of the present invention is an Ou-Ni-3i yarn material that utilizes reinforcement by precipitation of a Ni'-8i gold metal compound, and has the strength and extremely excellent thermal conductivity required as a mold material for plastic molding. , and machinability,
Pre-hardened gold with excellent mirror finish, no electrical discharge hardening, easy finishing after electrical discharge machining, good weldability, excellent corrosion resistance, material composition, and an appropriate combination of heat treatment. It is a mold material that greatly contributes to streamlining plastic molding operations, such as shortening molding cycle times.
代理人 出 中 寿 竺７（凧 ３１１Agent: Kotobuki Izaka 7 (Kite) 311
Claims (1)
％、残部Ｏｕおよび通常の不純物よりなる鍛造または鋳
造合金を固溶化処理温度８５０−９５０［より半没時間
４０ ｍ１ｒｆＤ冷却よりはやい冷却速度で焼入冷却の
のち４００−５５０℃の温度で時効硬化処理し、ＨＢＯ
３〜３６の硬さにしたことを特徴とするプラスチック成
形用ブリハードン金型材料。 ＆ Ｎｉ３．ＯＯ〜５．００％、Ｓｉ０．５０〜１．
５０％、残部ｏｕオＪ：ヒ通常の不純物よりなる特許請
求の範囲第１項記載のプラスチック成形用ブリハードン
金型材料。[Claims] L Ni2.50-6.00%, 5i040-2.00
%, the balance O and normal impurities are solution-hardened at a temperature of 850-950°C [with a half-immersion time of 40 ml]. After quenching and cooling at a faster cooling rate than rfD cooling, the alloy is age-hardened at a temperature of 400-550°C. And HBO
A plastic mold material for plastic molding, characterized by having a hardness of 3 to 36. & Ni3. OO~5.00%, Si0.50~1.
The mold material for plastic molding according to claim 1, which comprises 50% and the remainder ordinary impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP712083A JPS59133357A (en) | 1983-01-19 | 1983-01-19 | Prehardened material for metallic mold for molding plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP712083A JPS59133357A (en) | 1983-01-19 | 1983-01-19 | Prehardened material for metallic mold for molding plastic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59133357A true JPS59133357A (en) | 1984-07-31 |
| JPS6214215B2 JPS6214215B2 (en) | 1987-04-01 |
Family
ID=11657216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP712083A Granted JPS59133357A (en) | 1983-01-19 | 1983-01-19 | Prehardened material for metallic mold for molding plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59133357A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01291909A (en) * | 1988-05-12 | 1989-11-24 | Clifford A Moberg | Molding die and alloy core pin |
| JPH0499140A (en) * | 1990-08-03 | 1992-03-31 | Hitachi Ltd | Die material for plastic molding and its manufacture |
-
1983
- 1983-01-19 JP JP712083A patent/JPS59133357A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01291909A (en) * | 1988-05-12 | 1989-11-24 | Clifford A Moberg | Molding die and alloy core pin |
| JPH0499140A (en) * | 1990-08-03 | 1992-03-31 | Hitachi Ltd | Die material for plastic molding and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6214215B2 (en) | 1987-04-01 |
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