JPH03281748A - Manufacture of vtr cylinder material - Google Patents
Manufacture of vtr cylinder materialInfo
- Publication number
- JPH03281748A JPH03281748A JP8326290A JP8326290A JPH03281748A JP H03281748 A JPH03281748 A JP H03281748A JP 8326290 A JP8326290 A JP 8326290A JP 8326290 A JP8326290 A JP 8326290A JP H03281748 A JPH03281748 A JP H03281748A
- Authority
- JP
- Japan
- Prior art keywords
- wear resistance
- vacuum degassing
- cylinder material
- degassing treatment
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000956 alloy Substances 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 17
- 238000009849 vacuum degassing Methods 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000007712 rapid solidification Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 229910018125 Al-Si Inorganic materials 0.000 abstract 1
- 229910018520 Al—Si Inorganic materials 0.000 abstract 1
- 238000007872 degassing Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000011856 silicon-based particle Substances 0.000 description 4
- 229910000676 Si alloy Inorganic materials 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000001192 hot extrusion Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000003483 aging Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006023 eutectic alloy Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、組織が均一で高度の耐摩耗性を有するＡｌ−
３ｉ系のＶＴＲシリンダー材を製造する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides an Al-
The present invention relates to a method for manufacturing a 3i-based VTR cylinder material.
ＶＴＲドラム用のシリンダー材料としては軽量で耐摩耗
性に優れるＡｌ系の合金が有用されているが、現在では
耐摩耗特性の面から溶解鍛造法により得られるＡｌ−３
ｉ系の共晶合金を素材としたものが主流を占めている。Al-based alloys, which are lightweight and have excellent wear resistance, are useful as cylinder materials for VTR drums, but currently Al-3, which is obtained by melting and forging, is used because of its wear resistance.
The mainstream is made of i-based eutectic alloys.
ところが、前記のＡｎ−３ｔ合金はＳｉ含有量が１２ｗ
Ｌ％以下であり、充分な耐摩耗性を付与するためには組
成的に５ｉｌＪが不足する難点がある。However, the Si content of the An-3t alloy is 12w.
L% or less, and there is a problem that 5ilJ is insufficient compositionally to provide sufficient wear resistance.
そのうえ、合金＆ＩＩＲｆに不均質な面がある関係で、
切削仕上げの表面粗度にバラツキが生じてテープに１■
傷を与えたり、使用中にシリンダーが微小変形して画像
を乱す等の現象を招く問題点がある。Moreover, due to the heterogeneity of alloy & IIRf,
There are variations in the surface roughness of the cutting finish and the tape has 1■
There are problems in that the cylinder may be damaged, or the cylinder may be slightly deformed during use, disturbing the image.
［発明が解決しようとする！Ｉ！ａ］
Ａｊ！−３ｉ系の合金材質において高度の耐摩耗性を付
与するためにはＳｉ含有量を２０ｗ ｔ％程度まで増大
させる必要があるが、この組成は急冷凝固法により形成
することができる。[Invention tries to solve! I! a] Aj! In order to impart a high degree of wear resistance to a -3i alloy material, it is necessary to increase the Si content to about 20 wt%, but this composition can be formed by a rapid solidification method.
本発明者らは上記の点に着目して研究を重ねた結果、急
冷凝固法で得られる特定組成のＡｌ−３ｉ系合金粉末を
一定条件下に真空脱ガスしたのち熱間押出加工すると、
Ｓｉ成分の平均粒径を高度の耐摩耗性と均質組織の形成
に有効な２．５〜３，５μ−の範囲に増大調整化し得る
事実を確認して本発明の開発に至ったものである。As a result of repeated research focusing on the above points, the present inventors found that when Al-3i alloy powder with a specific composition obtained by rapid solidification is vacuum degassed under certain conditions and then hot extruded,
The present invention was developed after confirming the fact that the average particle size of the Si component can be increased and adjusted to a range of 2.5 to 3.5μ, which is effective for achieving high wear resistance and forming a homogeneous structure. .
したがって、本発明の目的は、急冷凝固法によるＡｌ−
５μ合金粉末を原料として高性能のＶＴＲシリンダー材
を製造するための方法を提供することにある。Therefore, the object of the present invention is to produce Al-
The object of the present invention is to provide a method for manufacturing a high-performance VTR cylinder material using 5μ alloy powder as a raw material.
Ｃ！！題を解決するための手段〕
上記の目的を達成するための本発明によるＶＴＲシリン
ダー材の製造方法は、５ｉ１８〜２３−１％、Ｃｕ ０
．５〜６ｓｙｔ％、Ｍ ｇ ０．５〜５ｗｔ％を含み残
部がＡｉ！からなる組成の急冷凝固法で得られた合金粉
末を容器詰めし、５００〜５４０℃の温度範囲で４〜４
８時間真空脱ガス処理を施したのち、前記真空脱ガス処
理の温度以下で熱間押出することを構成上の特徴とする
。C! ! Means for Solving the Problems] A method for manufacturing a VTR cylinder material according to the present invention to achieve the above object includes a method for producing a VTR cylinder material containing 5i18-23-1%, Cu0
．． 5 to 6 syt%, M g 0.5 to 5 wt%, and the balance is Ai! The alloy powder obtained by the rapid solidification method with a composition of
A structural feature is that after vacuum degassing treatment is performed for 8 hours, hot extrusion is performed at a temperature lower than the temperature of the vacuum degassing treatment.
本発明の原料となるＡｊ！−５μ合金は、鋳塊をアトマ
イズ法により急冷凝固して得られる粉末で、合金成分と
してＳ ｉ １Ｂ〜２３ｗｔ％、Ｃｕ ０．５〜６ｗｔ
％およびＭｇ０．５〜５ｗｔ％を含む組成を必須とする
。合金組成をこのように限定するのは、以下の理由によ
るためである。すなわち、Ｓｉはｉ１摩耗性を付与する
だめの成分となるが、この含有量が１８−ｔ％未満では
耐摩耗性が不足し、また２３ｗｔ％を越えると加工性を
悪化させる。ＣｕおよびＭｇは共存して時効硬化を示す
が、これら成分が共に０゜５ｗｔ％を下廻る場合には充
分な効果が発揮されず、他方Ｃｕが６ｗｔ％を越えＭｇ
が５ｗｔ％を越える場合には効果が飽和する。Aj! which is the raw material of the present invention! -5μ alloy is a powder obtained by rapidly solidifying an ingot using the atomization method, and the alloy components include Si 1B to 23wt% and Cu 0.5 to 6wt%.
% and Mg0.5 to 5 wt%. The reason why the alloy composition is limited in this manner is as follows. That is, Si is an essential component that imparts i1 wear resistance, but if the content is less than 18-t%, the wear resistance is insufficient, and if it exceeds 23 wt%, the workability is deteriorated. Cu and Mg coexist and exhibit age hardening, but when both of these components are below 0.5 wt%, sufficient effect is not exhibited, whereas when Cu exceeds 6 wt%, Mg
When the amount exceeds 5 wt%, the effect is saturated.
上記の組成を有するＡβ〜Ｓｉ合金粉末は容器詰めした
のち、処理温度５００〜５４０℃５処理時間４〜４８時
間の条件により真空脱ガス処理を施す。After the Aβ-Si alloy powder having the above composition is packed in a container, it is subjected to vacuum degassing treatment at a treatment temperature of 500 to 540° C. and a treatment time of 4 to 48 hours.
この場合、処理の温度が５００”Ｃを下廻りまた時間が
４時間未満であるとＳｉの粒子径が円滑に増大せず、温
度が５４０℃を越えると膨れが発生して製品とならなく
なる。４８時間を越す長い処理時間ではＳ】平均粒径が
大きくなり過ぎて組織の不均一を招き、結果的に耐摩耗
性が減退する。また長時間の処理は生産性の面からも妙
味がない。In this case, if the processing temperature is below 500"C or for less than 4 hours, the Si particle size will not increase smoothly, and if the temperature exceeds 540"C, swelling will occur and the product will not be produced.48 If the treatment time is too long, the average particle size will become too large, resulting in non-uniform structure, resulting in a decrease in wear resistance.In addition, long treatment times are not attractive from the viewpoint of productivity.
真空脱ガス処理されたＡｌ−５μ合金粉末は、ついで常
法に従ってホットプレスで成形したのち熱間押出される
。熱間押出加工の温度は、真空脱ガス処理時に５００〜
５４０℃の範囲内で設定した温度以下にしておこなわれ
る。The vacuum-degassed Al-5μ alloy powder is then hot-pressed and hot-extruded according to a conventional method. The temperature of hot extrusion processing is 500 to 500℃ during vacuum degassing treatment.
The temperature is set within a range of 540°C or lower.
熱間押出加工された押出棒は、切断、冷間鍛造、旋削仕
上げ等の工程を経てＶＴＲシリンダーに形成される。The hot-extruded extruded rod is formed into a VTR cylinder through processes such as cutting, cold forging, and lathe finishing.
本発明によれば、急冷凝固法によるＡｌ−３μ合金粉末
を原料とするからＳｉ成分を耐摩耗性を付与するために
有効な１８〜２３−ｔ％の範囲に容品に調整することが
でき、このＳｉ成分は特定された温度と時間の真空脱ガ
ス処理を施す過程で平均粒径が増大調整され、耐摩耗性
を向上させると共にｍ織の均質化に寄与する２、５〜３
．５μ−の平均ね径範囲に収めることができる。According to the present invention, since the Al-3μ alloy powder produced by the rapid solidification method is used as a raw material, the Si content can be conveniently adjusted to a range of 18 to 23-t%, which is effective for imparting wear resistance. The average particle size of this Si component is adjusted to increase during the process of vacuum degassing treatment at a specified temperature and time, which improves wear resistance and contributes to homogenization of the m weave.
．． The average diameter can be kept within the range of 5μ.
このような作用を介して、ＶＴＲシリンダー材に要求さ
れる耐摩耗性と合金＆［ｌ織の均一化を同時に発現させ
ることが可能となる。Through such an effect, it is possible to simultaneously achieve the wear resistance required for a VTR cylinder material and the uniformity of the alloy and weave.
〔実施例］ 以下、本発明を実施例に基づいて説明する。〔Example] Hereinafter, the present invention will be explained based on examples.
急冷凝固法で得られた５１２０圓ｔ％、Ｃｕ１ｗｔ％、
Ｍｇｌ賀ｔ％、残部がＡｌからなる組成のＡＰ、−３合
金粉末を分級して２９７μｍ以下の粒径部分を採取した
。この粉末を容器詰め（６ｉｎ 、径ビレット）シ、温
度および時間の異なる各種の条件により真空脱ガス処理
をおこなった。5120 round t%, Cu1wt% obtained by rapid solidification method,
AP, -3 alloy powder having a composition of t% Mgl and the balance Al was classified to collect a particle size portion of 297 μm or less. This powder was packed in containers (6 inch diameter billets) and subjected to vacuum degassing under various conditions of different temperatures and times.
真空脱ガス処理後の材料を、ホントプレスを用いて温度
４５０℃２圧力１０００ｔの条件で成形したのち、引続
き温度４３０℃１押出速度２〜５ｓ／５ｉｉｎ、により
熱間押出加工を施した。The material after the vacuum degassing treatment was molded using a real press at a temperature of 450°C and a pressure of 1000 tons, and then hot extrusion was performed at a temperature of 430°C and an extrusion speed of 2 to 5 s/5iin.
本発明の処理によるＳｉ平均粒径の増大状況および得ら
れたシリンダー材の耐摩耗性を真空脱ガス処理の条件と
対比させて表１に示した。Table 1 shows the increase in the average Si particle size due to the treatment of the present invention and the wear resistance of the obtained cylinder material in comparison with the conditions of the vacuum degassing treatment.
なお、第１図はＮ０．４（表１）の材料を拡大したＩＪ
Ｉ織写真（Ｓ［Ｍ） 、また第２図はＮｏ、１０（表１
）の材料を拡大した組織写真（ＳＥＭ）である。In addition, Figure 1 shows an enlarged IJ of N0.4 (Table 1) material.
I-weave photograph (S [M), and Figure 2 is No. 10 (Table 1
) is an enlarged microstructure photograph (SEM) of the material.
表
１
表１の結果から、真空脱ガス処理を温度５００〜５４０
℃、時間４〜４８ｈｒの設定条件で実施した例はいずれ
もＳｉ平均粒径が２．５〜３．５μ−の範囲内収まり、
良好な耐摩耗性を示すとともに第１図に代表されるよう
な均一な組織状態を呈している。Table 1 From the results in Table 1, vacuum degassing treatment was performed at a temperature of 500 to 540.
In all the examples carried out under the setting conditions of ℃ and time of 4 to 48 hours, the average Si particle size fell within the range of 2.5 to 3.5μ.
It exhibits good wear resistance and a uniform structure as typified by FIG.
これに対し、Ｎｏ、１の例では通用温度が不足してＳｉ
平均粒径が大きくならず、またＮｏ、７およびＮｏ、１
０の例では処理時間が極端に長いためにＳｉ平均粒径が
過度に大きくなり、第２図のように組織が不均一となっ
て耐摩耗性を減退させる結果を与える。On the other hand, in example No. 1, the common temperature is insufficient and the Si
The average particle size does not increase, and No. 7 and No. 1
In the case of 0, the average Si particle size becomes excessively large due to the extremely long processing time, resulting in a non-uniform structure as shown in FIG. 2, resulting in a decrease in wear resistance.
（発明の効果〕
以上のとおり本発明によれば、急冷凝固法により得られ
る特定組成のＡ１−Ｓｉ合金粉末を原料とし°ζ−ζ−
性の真空脱ガス処理を施すことにより、Ｓｉ平均粒径を
材料に優れた耐摩耗性と均一組織を付与するに好適な２
．５〜３．５μ−の範囲に増大調整化することができる
。したがって、ＶＴＲシリンダー材とした場合に従来の
溶解鍛造法によるＡＮ−Ｓｉ合金を用いた材料に比べ耐
摩耗性を２〜３倍向上させることができ、そのうえ組織
が均一であるため使用時の熱サイクルに伴う微小変形の
程度が大幅に減少する。(Effects of the Invention) As described above, according to the present invention, using A1-Si alloy powder of a specific composition obtained by a rapid solidification method as a raw material, °ζ-ζ-
By subjecting the material to a vacuum degassing treatment, the Si average particle size can be reduced to 2, which is suitable for imparting excellent wear resistance and a uniform structure to the material.
．． It is possible to adjust the increase in the range of 5 to 3.5 μ-. Therefore, when used as a VTR cylinder material, the wear resistance can be improved 2 to 3 times compared to materials using AN-Si alloy made by conventional melting and forging. The degree of microdeformation associated with cycling is significantly reduced.
なお、本発明の合金組成はＳｉ含有量が多いが真空脱ガ
スの条体制御によりＳｉ平均粒径の増大が適度に抑制さ
れるから、切削加工、熱間加工などを悪化させることは
ない。Although the alloy composition of the present invention has a high Si content, the increase in the average Si grain size is moderately suppressed by controlling the vacuum degassing, so cutting, hot working, etc. are not deteriorated.
第１図および第２図は真空脱ガス処理条件に違いによる
材料の金属組織を拡大して示したＳＥＭ写真である。FIGS. 1 and 2 are SEM photographs showing enlarged metal structures of materials due to differences in vacuum degassing treatment conditions.
Claims (1)
ｇ０．５〜５ｗｔ％を含み残部がＡｌからなる組成の急
冷凝固法で得られた合金粉末を容器詰めし、５００〜５
４０℃の温度範囲で４〜４８時間真空脱ガス処理を施し
たのち、前記真空脱ガス処理の温度以下で熱間押出する
ことを特徴とするＶＴＲシリンダー材の製造方法。1, Si18-23wt%, Cu0.5-6wt%, M
An alloy powder obtained by a rapid solidification method having a composition containing 0.5 to 5 wt% of g and the balance consisting of Al is packed in a container and
A method for producing a VTR cylinder material, which comprises performing vacuum degassing treatment at a temperature range of 40° C. for 4 to 48 hours, and then hot extruding at a temperature below the vacuum degassing treatment temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8326290A JPH03281748A (en) | 1990-03-29 | 1990-03-29 | Manufacture of vtr cylinder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8326290A JPH03281748A (en) | 1990-03-29 | 1990-03-29 | Manufacture of vtr cylinder material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03281748A true JPH03281748A (en) | 1991-12-12 |
Family
ID=13797438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8326290A Pending JPH03281748A (en) | 1990-03-29 | 1990-03-29 | Manufacture of vtr cylinder material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03281748A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993009899A1 (en) * | 1991-11-22 | 1993-05-27 | Sumitomo Electric Industries, Ltd | Method for degassing and solidifying aluminum alloy powder |
| US7177384B2 (en) | 1999-09-09 | 2007-02-13 | Mitsubishi Heavy Industries, Ltd. | Aluminum composite material, manufacturing method therefor, and basket and cask using the same |
-
1990
- 1990-03-29 JP JP8326290A patent/JPH03281748A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993009899A1 (en) * | 1991-11-22 | 1993-05-27 | Sumitomo Electric Industries, Ltd | Method for degassing and solidifying aluminum alloy powder |
| US7177384B2 (en) | 1999-09-09 | 2007-02-13 | Mitsubishi Heavy Industries, Ltd. | Aluminum composite material, manufacturing method therefor, and basket and cask using the same |
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