JPS63140065A - Ferromagnetic steel combining high saturation magnetization with high wear resistance - Google Patents
Ferromagnetic steel combining high saturation magnetization with high wear resistanceInfo
- Publication number
- JPS63140065A JPS63140065A JP28441986A JP28441986A JPS63140065A JP S63140065 A JPS63140065 A JP S63140065A JP 28441986 A JP28441986 A JP 28441986A JP 28441986 A JP28441986 A JP 28441986A JP S63140065 A JPS63140065 A JP S63140065A
- Authority
- JP
- Japan
- Prior art keywords
- saturation magnetization
- steel
- wear resistance
- magnetic powder
- high saturation
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract description 33
- 239000010959 steel Substances 0.000 title abstract description 33
- 230000005415 magnetization Effects 0.000 title abstract description 24
- 230000005294 ferromagnetic effect Effects 0.000 title abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000006247 magnetic powder Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 230000005291 magnetic effect Effects 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000005275 alloying Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910001315 Tool steel Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 229910001004 magnetic alloy Inorganic materials 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001240 Maraging steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000221535 Pucciniales Species 0.000 description 1
- 229910004349 Ti-Al Inorganic materials 0.000 description 1
- 229910004692 Ti—Al Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Hard Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁性合金粉末の圧縮または射出成形用金型等に
使用される高飽和磁化高耐摩耗強磁性鋼に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a highly saturated magnetized highly wear-resistant ferromagnetic steel used in molds for compression or injection molding of magnetic alloy powder.
焼結型磁石および樹脂結合型磁石の製造において、これ
らの磁気特性を向上させるために、原料の磁性粉末を金
型などを用いて圧縮あるいは射出成形する際、磁場を印
加して磁性粉末に異方性を付与することが行なわれる。In the production of sintered magnets and resin-bonded magnets, in order to improve their magnetic properties, when the raw magnetic powder is compressed or injection molded using a mold, a magnetic field is applied to the magnetic powder to create a difference. It is performed to impart directionality.
この時、磁性粉末に直接接触した状態で使用される金型
などの強磁性構造部材には、磁性粉末に高い起磁力を加
えることができる高飽和磁化と硬質の磁性粉末に対する
耐摩耗性とが併わせて要求される。At this time, ferromagnetic structural members such as molds that are used in direct contact with the magnetic powder have high saturation magnetization that can apply a high magnetomotive force to the magnetic powder and wear resistance against hard magnetic powder. It is also required.
鉄鋼材料は他の合金に比較して自発磁化が大きく、また
安価なため上記構造部材にも広く利用されている。特に
材料のかたさと耐摩耗性とは一般に一比例関係にあると
考えられていることから、従来は高硬度のＮｉ−Ｃｏ−
Ｎｏ−Ｔｉ−Ａｌ系マルエージング鋼やＣｒ−Ｎｏ−Ｖ
系合金工具鋼が多く用いられていた。Steel materials have a larger spontaneous magnetization than other alloys and are inexpensive, so they are widely used in the above structural members. In particular, since it is generally believed that there is a linear relationship between material hardness and wear resistance, conventionally high hardness Ni-Co-
No-Ti-Al maraging steel and Cr-No-V
Alloy tool steels were often used.
上述のように、上記構造部材には高飽和磁化と高耐摩耗
性が併わせ要求されるが、従来用いられる材料ではこれ
らを両立させることは極めて困難であった０例えばＣＯ
含有量を高めたマルエージング高では２００００ガウス
を上回る高い飽和磁化を示すが１反面かたさに比して耐
摩耗性が劣る欠点がある。一方合金工具鋼では十分な耐
摩耗性は得られるものの、Ｏｒ、 Ｎｏなどの合金元素
を多量に添加するため磁気特性をそこない、１４０００
〜１８０００ガウス程度の飽和磁化値しか示さない、す
なわち従来の鉄鋼材料では要求される飽和磁化と耐摩耗
性とをともに具備したものは見いだされていなかった。As mentioned above, the above structural members are required to have both high saturation magnetization and high wear resistance, but it is extremely difficult to achieve both with conventionally used materials.
When the maraging height is increased, the saturation magnetization is higher than 20,000 Gauss, but on the other hand, there is a drawback that the wear resistance is inferior compared to the hardness. On the other hand, although alloy tool steel can provide sufficient wear resistance, it deteriorates magnetic properties due to the addition of large amounts of alloying elements such as Or and No.
It only shows a saturation magnetization value of about ~18,000 Gauss, that is, no conventional steel material has been found that has both the required saturation magnetization and wear resistance.
本発明は上記問題点を克服し、適正な化学組成を選定す
ることにより、高飽和磁化と高耐摩耗性とを併わせ備え
しかも安価な強磁性鋼を提供することを目的とするもの
である。The object of the present invention is to overcome the above problems and provide an inexpensive ferromagnetic steel that has both high saturation magnetization and high wear resistance by selecting an appropriate chemical composition. .
上記問題点を解決する本発明の手段は１重量比テＧ ０
．１５〜０．３５％、 Ｓｉ ０．１５〜０．３０％、
Ｍｎ ０．１〜０．５％、Ｎｉ２．５〜６％、Ｖｏ、２
〜１．０％を含有し、残部がＦｅ及び不可避的不純物か
ら成ることを特徴とする高飽和磁化高耐摩耗強磁性鋼で
あり、また重量比−１’ｃ ０．１５〜０．３５％、Ｓ
ｉ ０．１５〜０．３０％、Ｍｎ ０．１−０，５％、
Ｘｉ ２．５〜８．０％、Ｖｏ、２〜１．０％、Ｃｏ２
〜２０％を含有し、残部がＦｅ及び不可避的不純物から
成ることを特徴とする高飽和磁化高耐摩耗強磁性鋼であ
る。The means of the present invention for solving the above problems is as follows: 1 weight ratio TeG 0
．． 15-0.35%, Si 0.15-0.30%,
Mn 0.1-0.5%, Ni 2.5-6%, Vo, 2
It is a highly saturated magnetized and highly wear-resistant ferromagnetic steel characterized by containing ~1.0% and the remainder consisting of Fe and unavoidable impurities, and also has a weight ratio of -1'c 0.15 to 0.35%. , S
i 0.15-0.30%, Mn 0.1-0.5%,
Xi 2.5-8.0%, Vo, 2-1.0%, Co2
It is a highly saturated magnetized and highly wear-resistant ferromagnetic steel characterized by containing ~20% of Fe and the remainder consisting of Fe and unavoidable impurities.
つぎに、本発明の各合金元素の成分範囲の限定理由を述
べる。Next, the reason for limiting the range of each alloying element of the present invention will be described.
Ｃは綱の焼入性を高め、基質の強度を上昇せしめるとと
もに炭化物を形成し、耐摩耗性を飛躍的に向上させるた
めに不可欠の元素である。その効果は０．１５％未満で
は顕著でなく、また０、３５％をこえる場合、飽和磁化
の低下を招くため、その成分範囲を０．１５〜０．３５
％とした。C is an essential element for improving the hardenability of the steel, increasing the strength of the matrix, forming carbides, and dramatically improving the wear resistance. The effect is not noticeable when it is less than 0.15%, and when it exceeds 0.35%, the saturation magnetization decreases, so the component range is 0.15 to 0.35.
%.
ＳｉおよびＭｎは製鋼工程における脱酸剤として作用す
るだけでなく、鋼の焼入性を高め、基質の強度上昇に効
果がある。しかし過度の含有は飽和磁化の低下を著しく
するため、その成分範囲をＳｉ： ０．１５〜０．３％
、 Ｍｎ：Ｑ、１〜０．５％とした。Si and Mn not only act as deoxidizers in the steelmaking process, but also improve the hardenability of steel and are effective in increasing the strength of the matrix. However, excessive content significantly reduces saturation magnetization, so the range of Si content is reduced to 0.15 to 0.3%.
, Mn:Q, 1 to 0.5%.
旧は鋼の焼入性を高め、基質の強度を上昇せしめると同
時に飽和磁化をも上昇せしめる重要な元素であり、焼入
効果を十分得るためには２．５％以上の添加が必要であ
る。一方その含有量が６％を超えると飽和磁化は逆に減
少する。従って、その成分範囲を２．５〜６％と限定し
た。It is an important element that increases the hardenability of steel, increases the strength of the matrix, and at the same time increases saturation magnetization, and it is necessary to add 2.5% or more to obtain a sufficient hardening effect. . On the other hand, when the content exceeds 6%, the saturation magnetization decreases on the contrary. Therefore, the component range was limited to 2.5 to 6%.
■は焼入焼戻しにより炭化物を形成し、鋼の耐摩耗性を
向上せしめる元素であり、その効果を得るには０．２％
以上の添加が必要である。しかし過度の添加は炭化物の
粗大化を招きかえって耐摩耗性を阻害するばかりか飽和
磁化の低下にもつながるため、その上限を１．０％とし
た。すなわち、その成分範囲を０．２〜１．０％と限定
した。■ is an element that forms carbides during quenching and tempering and improves the wear resistance of steel, and to achieve this effect, 0.2%
The above addition is necessary. However, excessive addition leads to coarsening of carbides, which not only impairs wear resistance but also leads to a decrease in saturation magnetization, so the upper limit was set at 1.0%. That is, the range of the components was limited to 0.2 to 1.0%.
上述の合金組成範囲を選定することにより１本発明鋼に
おいて高飽和磁化と高耐摩耗性の両性質を両立させるこ
とができるが、飽和磁化のなお一層の増加が必要な場合
には、さらに、 ＣＯを添加するのがよい、 ＣＯは鋼
の飽和磁化を上昇せしめる数少ない合金元素のひとつで
あるが、２％未満の添加では顕著な効果はない、またＣ
Ｏは焼入時の鋼の変態点を高温側に移行させるため、焼
入性確保の見地から２０％を超える添加は避けなければ
ならない、従ってその範囲を２〜２０％とした。By selecting the above-mentioned alloy composition range, it is possible to achieve both high saturation magnetization and high wear resistance in the steel of the present invention. However, if a further increase in saturation magnetization is required, It is good to add CO. CO is one of the few alloying elements that increases the saturation magnetization of steel, but adding less than 2% has no significant effect.
Since O shifts the transformation point of the steel during quenching to a high temperature side, it is necessary to avoid adding more than 20% from the viewpoint of ensuring hardenability, and therefore the range is set to 2 to 20%.
つぎに、本発明の実施例について説明する。第１表に示
す化学組成の本発明鋼４種類と、比較鋼２種類それぞれ
を５０Ｋｇ鋼塊に溶製し、熱間鍛造により断面形状８５
■ｍ角の棒材に鍛伸し、試験材を製作した。第１表にお
ける比較鋼ｅは高硬度タイプのＣＯマルエージ鋼、ｆは
冷間金型用合金工具鋼である。Next, examples of the present invention will be described. Four types of steel of the present invention and two types of comparative steel each having the chemical composition shown in Table 1 were melted into 50 kg steel ingots, and hot forged to a cross-sectional shape of 85 mm.
■A test material was produced by forging and elongating it into an m square bar. Comparative steel e in Table 1 is a high hardness type CO marage steel, and f is an alloy tool steel for cold work dies.
第１表に示す６錆について摩耗試験機を用いて８８重量
％のフェライト磁性粉末を含む粒状ナイロン樹脂による
アブレーシブ摩耗に対する耐摩耗性を試験時間２５Ｏｈ
ｒ後の摩耗量で評価した。またＢ−Ｈループトレーサー
により各項の飽和磁化値を測定した。なお印加した磁場
の強さは５ ＫＯｅである。これらの測定値は第２表に
示すとおりであった。The wear resistance against abrasive wear of granular nylon resin containing 88% by weight of ferrite magnetic powder was tested using an abrasion tester for the 6 rusts shown in Table 1 for a test time of 25Oh.
Evaluation was made based on the amount of wear after r. In addition, the saturation magnetization value of each term was measured using a B-H loop tracer. Note that the strength of the applied magnetic field was 5 KOe. These measured values were as shown in Table 2.
第２表
第２表から明らかなように、比較鋼ｅは飽和磁化値は２
０８００ガウスと本発明鋼に近い値を示すものの、摩耗
量は３５８．７ｍｇと極めて大きく、一方比較鋼ｆは摩
耗量はｉｏ、Ｅｌｍｇと本発明鋼に匹敵する値を示すも
のの飽和磁化値は１８０００ガウスと本発明鋼の２１０
００ガウス以上より遥かに劣っている。すなわち、本発
明鋼は高飽和磁化値と高耐摩耗性の両者を伴せ備えてい
ることが明らかである。As is clear from Table 2, the saturation magnetization value of comparative steel e is 2.
0800 gauss, which is close to the inventive steel, but the wear amount is extremely large, 358.7 mg. On the other hand, comparative steel f shows a wear amount of io, Elmg, which is comparable to the inventive steel, but the saturation magnetization value is 18,000. Gauss and 210 of the invention steel
It is far inferior to 00 Gauss or higher. That is, it is clear that the steel of the present invention has both a high saturation magnetization value and high wear resistance.
また本発明鋼・Ｃおよびｄについての結果から明らかな
ように、２〜２０％のＣＯの添加は、耐摩耗性をそこな
うことなく飽和磁化値を高めるのに有効であり、その値
は純鉄についての値２１８００ガウスをも上回っている
。Furthermore, as is clear from the results for the invention steels C and d, the addition of 2 to 20% CO is effective in increasing the saturation magnetization value without impairing the wear resistance, and that value is higher than that of pure iron. It also exceeds the value of 21,800 Gauss.
以上説明したように、本発明は適正な合金元素を含有さ
せることにより、ＣＯ含有量を高めたマルエージ鋼と同
等またはそれ以上の高い飽和磁化と合金工具鋼に匹敵す
る高い耐摩耗性とを合わせ持ち、かついずれの鋼に比し
ても安価に製造が可能であり、磁性合金粉末、焼結磁石
、樹脂結合型磁石などの磁場中成形用金型をはじめとす
る磁場中で高硬度の粉末に接して使用される強磁性構造
部材としての用途にきわめて適している。As explained above, the present invention combines a high saturation magnetization equivalent to or higher than marage steel with increased CO content and high wear resistance comparable to alloy tool steel by containing appropriate alloying elements. It is highly durable and can be produced at a lower cost than any other steel, and is highly hard powder in a magnetic field, including molds for forming magnetic alloy powders, sintered magnets, resin-bonded magnets, etc. in a magnetic field. It is extremely suitable for use as a ferromagnetic structural member used in contact with.
Claims (1)
０．３０％、Ｍｎ０．１〜０．５％、Ｎｉ２．５〜６％
、Ｖ０．２〜１．０％を含有し、残部がＦｅ及び不可避
的不純物から成ることを特徴とする高飽和磁化高耐摩耗
強磁性鋼。 ２、重量比でＣ０．１５〜０．３５％、Ｓｉ０．１５〜
０．３０％、Ｍｎ０．１〜０．５％、Ｎｉ２．５〜８．
０％、Ｖ０．２〜１．０％、ＣＯ＿２〜２０％を含有し
、残部がＦｅ及び不可避的不純物から成ることを特徴と
する高飽和磁化高耐摩耗強磁性鋼。[Claims] 1. C0.15-0.35%, Si 0.15-0.15% by weight
0.30%, Mn0.1-0.5%, Ni2.5-6%
, V0.2 to 1.0%, with the remainder consisting of Fe and inevitable impurities. 2. C0.15-0.35%, Si0.15-0.15% by weight
0.30%, Mn 0.1-0.5%, Ni 2.5-8.
0%, V0.2-1.0%, CO_2-20%, and the balance is Fe and inevitable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28441986A JPS63140065A (en) | 1986-12-01 | 1986-12-01 | Ferromagnetic steel combining high saturation magnetization with high wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28441986A JPS63140065A (en) | 1986-12-01 | 1986-12-01 | Ferromagnetic steel combining high saturation magnetization with high wear resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140065A true JPS63140065A (en) | 1988-06-11 |
| JPH0454738B2 JPH0454738B2 (en) | 1992-09-01 |
Family
ID=17678312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28441986A Granted JPS63140065A (en) | 1986-12-01 | 1986-12-01 | Ferromagnetic steel combining high saturation magnetization with high wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63140065A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552711A (en) * | 1978-06-17 | 1980-01-10 | Kubota Ltd | Alloy for galvanizing roll |
| JPH097117A (en) * | 1995-06-22 | 1997-01-10 | Fuji Elelctrochem Co Ltd | Thin-film magnetic head and its production |
-
1986
- 1986-12-01 JP JP28441986A patent/JPS63140065A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552711A (en) * | 1978-06-17 | 1980-01-10 | Kubota Ltd | Alloy for galvanizing roll |
| JPH097117A (en) * | 1995-06-22 | 1997-01-10 | Fuji Elelctrochem Co Ltd | Thin-film magnetic head and its production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0454738B2 (en) | 1992-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9145598B2 (en) | Nitrogen containing, low nickel sintered stainless steel | |
| US5049183A (en) | Sintered machine part and method | |
| KR100601498B1 (en) | A water-atomised, annealed iron-based powder and method of preparing a sintered product using the powder | |
| CA2381508A1 (en) | Cold-working steel alloy for the powder metallurgical production of parts | |
| JPS61238943A (en) | High-strength non-magnetic steel excelling in rust resistance | |
| JPS63140065A (en) | Ferromagnetic steel combining high saturation magnetization with high wear resistance | |
| JPH02179848A (en) | Hot tool steel | |
| JPS61231102A (en) | Powder based on iron containing ni and mo for producing highstrength sintered body | |
| JPH04272158A (en) | Nonmagnetic stainless steel having low work hardenability | |
| US4601876A (en) | Sintered Fe-Cr-Co type magnetic alloy and method for producing article made thereof | |
| JPS6318001A (en) | Alloy steel powder for powder metallurgy | |
| JPS57185958A (en) | High-manganese nonmagnetic steel with remarkably high specific resistance | |
| JPH01159353A (en) | Age hardening austenitic tool steel | |
| JPH09157805A (en) | High strength iron base sintered alloy | |
| JPS59126753A (en) | Production of high-strength ferrous sintered parts | |
| JPH01119645A (en) | Powdery high-speed steel | |
| US1338133A (en) | Magnet-steel | |
| JPS602651A (en) | Magnetic alloy | |
| JPH09157806A (en) | High-strength ferrous sintered alloy | |
| JPS6333541A (en) | Manufacture of sintered alloy steel | |
| JPH01294837A (en) | High strength zinc alloy | |
| JPS6136041B2 (en) | ||
| JPH09125211A (en) | Ferrous sintered soft-magnetic material excellent in wear resistance and its production | |
| JPH02141556A (en) | Nonmagnetic stainless steel having excellent cold workability | |
| JPH01283349A (en) | Age-hardening austenitic tool steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |