JPH02228450A - Casting alloy - Google Patents
Casting alloyInfo
- Publication number
- JPH02228450A JPH02228450A JP5063289A JP5063289A JPH02228450A JP H02228450 A JPH02228450 A JP H02228450A JP 5063289 A JP5063289 A JP 5063289A JP 5063289 A JP5063289 A JP 5063289A JP H02228450 A JPH02228450 A JP H02228450A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- casting
- casting alloy
- impurities
- results
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 31
- 239000000956 alloy Substances 0.000 title claims abstract description 31
- 238000005266 casting Methods 0.000 title claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract 2
- 238000005275 alloying Methods 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 229910052748 manganese Inorganic materials 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000009864 tensile test Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910018084 Al-Fe Inorganic materials 0.000 description 3
- 229910018192 Al—Fe Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 241000221535 Pucciniales Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Landscapes
- 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、鋳造用合金に関し、金属工業分野において各
種の機器部品や装置部品などの鋳造用合金として広く用
いられるものでおる。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a casting alloy, which is widely used as a casting alloy for various equipment parts and equipment parts in the metal industry field.
（従来の技術）
従来より、耐熱用、耐蝕用の合金として多くの種類の合
金が用いられてあり、これらのものの大部分はＣｒやＮ
ｉ等の元素を合金成分として多量に含有しているが、そ
れらの代表的なものは０ｒ−Ｎｉ系のオーステナイトス
テンレス鋼や、Ｎｉ基の所謂ＨＫ金合金おる。(Prior Art) Conventionally, many types of alloys have been used as heat-resistant and corrosion-resistant alloys, and most of these alloys contain Cr and N.
It contains a large amount of elements such as i as alloy components, and representative examples thereof include 0r-Ni-based austenitic stainless steel and Ni-based so-called HK gold alloy.
（発明が解決しようとする課題）
然るに、これらの合金は重量％で、１８〜３０％のＣｒ
と７〜２０％のＮｉ及びＭＯ，Ｗ、Ｎｂ、その他の合金
元素を含有しているので高価でおることを免れ得ない。(Problems to be Solved by the Invention) However, these alloys contain 18 to 30% Cr by weight.
Since it contains 7 to 20% of Ni, MO, W, Nb, and other alloying elements, it is unavoidable that it is expensive.
この高価な合金元素であるＮをＭｎに置換する方法は
古くから用いられており、高マンガン鋼と称されている
が、この種の鋼は大気中で発錆し、また、耐蝕性も十分
でないと言った問題がある。This method of replacing N, an expensive alloying element, with Mn has been used for a long time and is called high manganese steel, but this type of steel rusts in the atmosphere and does not have sufficient corrosion resistance. There is a problem that it is not.
そこで、ＭｎにざらにＡ１を添加して耐蝕性の向上を図
った合金（以下、Ｍｎ−Ａｌ−Ｆｅ合金と称す）が開発
されているが、この種の合金は、鋳造のままでは金相組
織が粗大なため使用できず、圧延を施して機械的性質を
改善することにより、はじめて、実用に耐え得るものと
なると言った問題があるばかりでなく、溶接性が悪いた
め種々の形状、構造の機器部品や装置部品を製作するこ
とが不可能でおると言った重大な問題があった。Therefore, an alloy (hereinafter referred to as Mn-Al-Fe alloy) has been developed in which A1 is roughly added to Mn to improve the corrosion resistance. Not only does it have a problem of being unusable due to its coarse structure, but it has to be rolled to improve its mechanical properties before it can be put into practical use. In addition, its poor weldability makes it difficult to use in various shapes and structures. There was a serious problem in that it was impossible to manufacture equipment parts and equipment parts.
ざらに、鋳造の際も大気中での溶解では鋳造品に割れを
生じて良質な製品が得られず、したがってアルゴンガス
等の不活性ガス雰囲気中での溶解が必要であるため、操
業も複雑で製造コスト面からも不経済であると言った問
題があり、満足できるものではなかった。Furthermore, during casting, melting in the air will cause cracks in the cast product, making it impossible to obtain a high-quality product. Therefore, melting must be performed in an inert gas atmosphere such as argon gas, making operations complicated. However, there was a problem in that it was uneconomical in terms of manufacturing costs, and it was not satisfactory.
本発明は、上記の問題を解決することを課題として研究
開発されたもので、大気中での溶解鋳造が可能であって
操業が容易且つ経済的であると共に、鋳造のままで十分
に実用できる各種機器部品や装置部品などを鋳造するた
めの合金を提供することを目的とする。The present invention was researched and developed with the aim of solving the above problems, and it is possible to melt and cast in the atmosphere, making the operation easy and economical, and it can be put to practical use as it is. The purpose is to provide alloys for casting various equipment parts and device parts.
（課題を解決するための手段）
本発明の発明者は、上記のＭｎ−Ａｌ−Ｆｅ合金は組織
が粗大で、デンドライトの長さは２０００μｍに達し、
結晶粒界が脆弱で鋳造のままでは使用できないと言う問
題点に鑑み、この問題点を解決するために、このＭｎ−
Ａｌ−Ｆｅ合金に新たに添加する合金元素を検討した結
果、Ｏｒ及びＭＯの添加が有効であることを実験研究の
結果、確認し、且つ有害な不純物の量の限界値を実験調
査し、さらに機械的、物理的試験を実施した結果、上記
の課題を解決する手段として、本発明では、合金元素と
して、重量％で、Ｍｎ２５〜３５％、Ａ１７〜１０％、
Ｃ１，０〜１．５％、３＋ ０．８〜１．５％、Ｃｒ
０．５〜４．０％、Ｍｏ０．０５〜２．０％、不純物と
して、重量比で、Ｐｏ、０１〜０．５％、３０．１％未
満、Ｃｕ １．０未満を含有し、残がＦｅの組成から成
ることを特徴とする鋳造用合金を開発し、採用した。(Means for Solving the Problems) The inventor of the present invention discovered that the above Mn-Al-Fe alloy has a coarse structure, and the dendrite length reaches 2000 μm.
In view of the problem that the crystal grain boundaries are weak and cannot be used as cast, in order to solve this problem, this Mn-
As a result of examining new alloying elements to be added to the Al-Fe alloy, we confirmed through experimental research that the addition of Or and MO is effective, and also conducted an experimental investigation into the limit value of the amount of harmful impurities. As a result of conducting mechanical and physical tests, as a means to solve the above problems, in the present invention, as alloying elements, Mn 25-35%, A17-10%, A17-10%,
C1, 0-1.5%, 3+ 0.8-1.5%, Cr
Contains 0.5-4.0%, Mo 0.05-2.0%, impurities by weight, Po, 01-0.5%, less than 30.1%, Cu less than 1.0, and the remainder. A casting alloy characterized by having a composition of Fe was developed and adopted.
（作 用）
次に、本発明の作用を、各合金元素の効果と添加数値の
範囲限定理由に関連させて表−１に示す。(Function) Next, the function of the present invention is shown in Table 1 in relation to the effects of each alloying element and the reasons for limiting the range of addition values.
−以下、余白−
（実 施 例）
表−２に示す化学組成の合金を大気中での高周波溶解に
より鋳造し、インゴットから試験片を採取して機械強度
、耐酸化性等を試験した。 以下にその結果を述べる。-The following is a blank space- (Example) An alloy having the chemical composition shown in Table 2 was cast by high frequency melting in the atmosphere, and a test piece was taken from the ingot and tested for mechanical strength, oxidation resistance, etc. The results are described below.
１、引張り試験
常温および高温における機械的強度を調査するため、Ｊ
ＩＳ Ｚ２２０１引張試験Ｐ！ｉ−１４Ａ号を作成し
、引張試験を行なった。 その結果を第１図に示す。1. Tensile test To investigate mechanical strength at room temperature and high temperature, J
IS Z2201 tensile test P! No. i-14A was prepared and a tensile test was conducted. The results are shown in FIG.
なお、比較のためにＨＫ−２０合金についても同様の試
験を行なった結果を併せて示す。For comparison, the results of a similar test conducted on HK-20 alloy are also shown.
２、酸化性試験
９００’Ｃ，大気中における酸化性試験の結果を第２図
に示す。 データは酸化増量で示す。2. Oxidizing test The results of the oxidizing test at 900'C in the atmosphere are shown in Figure 2. Data are expressed as oxidation weight gain.
なお、比較のためにオーステナイト系およびフェライト
系ステンレス鋼についても同様の試験をした結果を併せ
て示す。For comparison, the results of similar tests on austenitic and ferritic stainless steels are also shown.
３、高温硬度試験 各温度における硬度を第３図に示す。3. High temperature hardness test Figure 3 shows the hardness at each temperature.
上記各試験の結果から明らかなように、表−２に示す組
成の鋳造用合金は、各比較合金に較べ、引張り試験、酸
化試験において格段に優れており、また、高温硬度試験
においても優れた特性を有していることが判った。As is clear from the results of the above tests, the casting alloys with the compositions shown in Table 2 are significantly superior in tensile tests and oxidation tests, and are also superior in high-temperature hardness tests compared to comparative alloys. It was found that it has the following characteristics.
表−２
（発明の効果）
以上の説明から明らかなように、本発明に係る鋳造用合
金は、下記のような優れた諸特長を有するものである。Table 2 (Effects of the Invention) As is clear from the above description, the casting alloy according to the present invention has the following excellent features.
１、機械的強度は十分であり、且つ耐酸性も従来の耐蝕
性合金に較べて格段に優れている。1. Mechanical strength is sufficient, and acid resistance is much better than conventional corrosion-resistant alloys.
２、耐摩耗性に優れてあり、２７０ ｒマルテンサイト
に匹敵できる。2. Excellent wear resistance, comparable to 270R martensite.
３、鋳造性が著しく良好であって、形状の複雑な機器類
、精密な機器類、肉薄な機器類、細小な機器類等及びそ
れらの部品類の鋳造が容易に可能である。3. Castability is extremely good, and it is possible to easily cast devices with complex shapes, precision devices, thin devices, small devices, etc., and their parts.
４、吸振性（減衰能）が良好であって、緩衝効果及び吸
音効果があるので、その鋳造品を使用した操業時の騒音
防止、破損防止に寄与し得る。4. It has good vibration absorbing properties (damping ability) and has a buffering effect and a sound absorbing effect, so it can contribute to preventing noise and damage during operation using the cast product.
５、比重は６．９程度で軽量なため、取扱いが容易であ
る。5. It is lightweight with a specific gravity of about 6.9, making it easy to handle.
６、安価であって、例えば鋳造品の製造コストは、１８
−８等オーステナイトステンレス鋼の釣上、ＨＫ合金の
約τである。6. Inexpensive, for example, the manufacturing cost of a cast product is 18
-8 grade austenitic stainless steel, approximately τ of HK alloy.
第１図は本発明に係る鋳造用合金とＨＫ−２０合金との
高温引張試験結果の比較例を示すグラフ、第２図は本発
明に係る鋳造用合金と５ＵＳ３０４合金及び５ＵＳ４２
０合金との高温酸化試験結果の比較例を示すグラフ、第
３図は本発明に係る鋳造用合金の高温硬度試験結果を示
すグラフでおる。
特許出願人 特殊電極株式会社
試験温度
に
第２図Figure 1 is a graph showing a comparative example of high temperature tensile test results between the casting alloy according to the present invention and the HK-20 alloy, and Figure 2 is a graph showing a comparative example of the results of a high temperature tensile test between the casting alloy according to the present invention and the 5US304 alloy and the 5US42 alloy.
3 is a graph showing a comparative example of high temperature oxidation test results with alloy No. 0. FIG. 3 is a graph showing high temperature hardness test results of the casting alloy according to the present invention. Patent applicant Special Electrode Co., Ltd.Test temperature Figure 2
Claims (1)
〜１０％、Ｃ１．０〜１．５％、Ｓｉ０．８〜１．５％
、Ｃｒ０．５〜４．０％、Ｍｏ０．０５〜２．０％、不
純物として、重量比で、Ｐ０．０１〜０．５％、Ｓ０．
１％未満、Ｃｕ１．０未満を含有し、残がＦｅの組成か
ら成ることを特徴とする鋳造用合金。As alloying elements, in weight%, Mn25-35%, Al7
~10%, C1.0~1.5%, Si0.8~1.5%
, Cr0.5-4.0%, Mo0.05-2.0%, as impurities, P0.01-0.5% by weight, S0.
A casting alloy characterized by containing less than 1% Cu, less than 1.0% Cu, and the balance consisting of Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5063289A JPH02228450A (en) | 1989-03-02 | 1989-03-02 | Casting alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5063289A JPH02228450A (en) | 1989-03-02 | 1989-03-02 | Casting alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02228450A true JPH02228450A (en) | 1990-09-11 |
Family
ID=12864346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5063289A Pending JPH02228450A (en) | 1989-03-02 | 1989-03-02 | Casting alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02228450A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019163534A (en) * | 2018-03-20 | 2019-09-26 | ドゥサン ヘヴィー インダストリーズ アンド コンストラクション カンパニー リミテッド | Lightweight steel excellent in corrosion resistance and specific strength and method of producing the same |
| EP3594376A1 (en) * | 2018-07-11 | 2020-01-15 | Apogean Metal Co., Ltd. | Austenitic steel alloy for hot forming |
| JP2022105199A (en) * | 2015-12-24 | 2022-07-12 | ロバルマ，ソシエダッド アノニマ | Long durability high performance steel for structural, machine and tooling applications |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232814A (en) * | 1975-09-10 | 1977-03-12 | Hitachi Metals Ltd | Precipitation hardening austenite cast tool alloy |
| JPS572868A (en) * | 1980-06-06 | 1982-01-08 | Kawasaki Steel Corp | High-manganese nonmagnetic steel for low temperature use |
| JPS58197256A (en) * | 1982-05-12 | 1983-11-16 | Kawasaki Steel Corp | High toughness high-mn steel with superior weather and rust resistance |
-
1989
- 1989-03-02 JP JP5063289A patent/JPH02228450A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232814A (en) * | 1975-09-10 | 1977-03-12 | Hitachi Metals Ltd | Precipitation hardening austenite cast tool alloy |
| JPS572868A (en) * | 1980-06-06 | 1982-01-08 | Kawasaki Steel Corp | High-manganese nonmagnetic steel for low temperature use |
| JPS58197256A (en) * | 1982-05-12 | 1983-11-16 | Kawasaki Steel Corp | High toughness high-mn steel with superior weather and rust resistance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022105199A (en) * | 2015-12-24 | 2022-07-12 | ロバルマ，ソシエダッド アノニマ | Long durability high performance steel for structural, machine and tooling applications |
| JP2019163534A (en) * | 2018-03-20 | 2019-09-26 | ドゥサン ヘヴィー インダストリーズ アンド コンストラクション カンパニー リミテッド | Lightweight steel excellent in corrosion resistance and specific strength and method of producing the same |
| EP3594376A1 (en) * | 2018-07-11 | 2020-01-15 | Apogean Metal Co., Ltd. | Austenitic steel alloy for hot forming |
| JP2020007632A (en) * | 2018-07-11 | 2020-01-16 | 永鼎應用金属股▲ふん▼有限公司 | Austenitic steel alloy and manufacturing method of austenitic steel alloy |
| US20200017929A1 (en) * | 2018-07-11 | 2020-01-16 | Yong Ding Applied Material Co., Ltd. | Austenitic steel alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4964926A (en) | Ferritic stainless steel | |
| JP4654440B2 (en) | Low work hardening type iron alloy | |
| JPS5929105B2 (en) | Fe-based alloy with excellent molten zinc corrosion resistance | |
| JPS59162254A (en) | Fe alloy material of superior workability | |
| JP5212581B1 (en) | Method for producing high Si austenitic stainless steel | |
| JPS6119767A (en) | Austenite stainless steel for low temperature | |
| JP2013531130A (en) | Ferritic stainless steel with high grain refinement performance and stable grain refinement performance and its production method | |
| JPH02228450A (en) | Casting alloy | |
| JP7223210B2 (en) | Precipitation hardening martensitic stainless steel sheet with excellent fatigue resistance | |
| JPH0717946B2 (en) | Method for producing duplex stainless steel with excellent resistance to concentrated sulfuric acid corrosion | |
| JPS60231591A (en) | Wire for submerged arc welding of cr-mo group low alloy steel | |
| JPS63171857A (en) | Manufacture of precipitation hardening-type stainless steel excellent in fatigue characteristic | |
| JP3025406B2 (en) | Ferritic and martensitic stainless steels with excellent machinability | |
| JP2970432B2 (en) | High temperature stainless steel and its manufacturing method | |
| JP3537685B2 (en) | Slab for thin steel sheet with less inclusion defect and method for producing the same | |
| JP2001303197A (en) | Steel with fine solidification structure | |
| JP3442706B2 (en) | Free-cutting steel | |
| JP2003147492A (en) | Ti-CONTAINING Fe-Cr-Ni STEEL HAVING EXCELLENT SURFACE PROPERTY, AND CASTING METHOD THEREFOR | |
| JPS60152661A (en) | Free-cutting austenitic stainless steel | |
| JPS62278252A (en) | Free-cutting austenitic stainless steel | |
| JPH0148342B2 (en) | ||
| US6110422A (en) | Ductile nickel-iron-chromium alloy | |
| JP3535026B2 (en) | Slab for thin steel sheet with less inclusion defect and method for producing the same | |
| JPH09195005A (en) | Austenitic heat resistant steel excellent in high temperature strength | |
| JP6288397B1 (en) | Austenitic stainless steel |