JPH0489238A - High strength composite vibration-damping material - Google Patents
High strength composite vibration-damping materialInfo
- Publication number
- JPH0489238A JPH0489238A JP20546090A JP20546090A JPH0489238A JP H0489238 A JPH0489238 A JP H0489238A JP 20546090 A JP20546090 A JP 20546090A JP 20546090 A JP20546090 A JP 20546090A JP H0489238 A JPH0489238 A JP H0489238A
- Authority
- JP
- Japan
- Prior art keywords
- intermediate layer
- based metal
- metal
- vickers hardness
- vibration
- 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 41
- 238000013016 damping Methods 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000005496 tempering Methods 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 238000010791 quenching Methods 0.000 claims description 14
- 230000000171 quenching effect Effects 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 5
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 abstract description 2
- 229910000734 martensite Inorganic materials 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 36
- 239000010410 layer Substances 0.000 description 35
- 230000000694 effects Effects 0.000 description 6
- 239000011651 chromium Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 229910000990 Ni alloy Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229940006076 viscoelastic substance Drugs 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は大きな振動減衰能を有し、がっ、高強度を備え
た高強度の複合防振材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high-strength composite anti-vibration material having a large vibration damping ability and high strength.
近年、各種機器の振動、騒音を防止するために、防振材
料が用いられている。この防振材料には、まず、振動減
衰特性が優れていることが要求される。また、この防振
材料を各種機器の部材または工具の構造部分等として使
用する場合には、上記振動減衰特性が優れていることの
他に、耐摩耗性、強度が優れていることが要求される。In recent years, anti-vibration materials have been used to prevent vibration and noise from various types of equipment. First of all, this vibration-proofing material is required to have excellent vibration damping properties. In addition, when using this vibration isolating material as a component of various equipment or a structural part of a tool, in addition to the excellent vibration damping properties mentioned above, it is also required to have excellent wear resistance and strength. Ru.
従来、単体の防振合金としては、Ｆ ｅ−Ｃｒ−Ａ １
合金、Ｍｎ−Ｃｕ合金、黒鉛鋳鉄等が使用されている。Conventionally, as a single anti-vibration alloy, Fe-Cr-A 1
Alloys, Mn-Cu alloys, graphite cast iron, etc. are used.
また、複合の防振材料としては、鋼板と粘弾性物質（樹
脂等）とのクラッドあるいはサンドイツチ板が周知であ
る。しかし、これらは減衰特性は優れているものの、強
度、耐摩耗性が劣っている。Further, as a composite vibration-proofing material, a cladding made of a steel plate and a viscoelastic substance (resin, etc.) or a sandwich plate is well known. However, although these have excellent damping characteristics, they are inferior in strength and wear resistance.
また、表面の耐摩耗性を考慮した複合防振材としては、
特公昭６０−５３１１２、特開昭６４−１１９８２およ
び特公昭５６−４３３０８に開示された、それぞれ防振
合金の表面にＡｌ酸化物、酸化クロム層およびＮ１メツ
キを２０μｍ程度被覆したものが開示されている。In addition, as a composite vibration damping material that takes into account the wear resistance of the surface,
Japanese Patent Publication No. 60-53112, Japanese Patent Publication No. 64-11982, and Japanese Patent Publication No. 56-43308 each disclose an anti-vibration alloy whose surface is coated with Al oxide, a chromium oxide layer, and N1 plating to a thickness of approximately 20 μm. There is.
また、純鉄、あるいはＦ ｅ−２％Ｎｉ合金を芯材とし
てその表面に５ＫＳ５を接合した例が報告されている。Furthermore, examples have been reported in which pure iron or Fe-2%Ni alloy is used as a core material and 5KS5 is bonded to the surface thereof.
（ＣＡ Ｍ Ｐ −ｌ５ＩＪ ｖｏｌ、２（１９８９）
、Ｐ１３２８１〔発明が解決しようとする課題〕
しかし、前記の第１の方法、つまり、酸化物層、あるい
は、Ｎ１メツキ等を被覆するものは、被覆層を厚くする
と減衰特性か低下し、一方被覆層か薄いと、表面の耐摩
耗性に問題を生じ、さらに、芯部の防振合金自身は一般
に低硬度であるために、複合材全体としての強度は不足
である。(CAM P-15IJ vol, 2 (1989)
, P13281 [Problem to be Solved by the Invention] However, in the first method described above, that is, coating with an oxide layer or N1 plating, etc., as the coating layer becomes thicker, the damping characteristics deteriorate; If the layer is thin, there will be a problem with the wear resistance of the surface, and furthermore, since the vibration-proofing alloy itself in the core generally has low hardness, the strength of the composite material as a whole is insufficient.
また、前記の第２の方法において、純鉄、あるいはＦ
ｅ−Ｎ ｉ合金に５ＫＳ５を接合する場合は、十分な減
衰能が得られないことと、芯部の硬度が低いために十分
な強度が得られない。In addition, in the second method, pure iron or F
When 5KS5 is bonded to e-Ni alloy, sufficient strength cannot be obtained due to insufficient damping ability and low hardness of the core.
上記のように、減衰特性を優れたものにしようとすると
、一般に強度、耐摩耗性か低下してしまう。As mentioned above, when trying to improve the damping characteristics, the strength and wear resistance generally decrease.
本発明は強度、耐摩耗性が優れており、かつ減衰能が大
きくて振動減衰特性の優れた高強度の複合防振材料を提
供するものである。The present invention provides a high-strength composite anti-vibration material that has excellent strength, wear resistance, large damping capacity, and excellent vibration damping properties.
本発明は、中間層のＦｅ基金属および該中間層のＦｅ基
金属の両面にそれぞれ接合された外層のＦｅ基金属の三
層からなる複合防振材料において、焼入れ、焼もどし熱
処理された後、前記外層のＦｅ基金属は硬さがビッカー
ス硬さ３６０以上であり、前記中間層のＦｅ基金属は重
量比で、Ｃｒ５〜２５％、Ａｌ．０．３〜５％を含むＦ
ｅ基合金でビッカース硬さ２００以上かつ内部摩擦Ｑ−
１が３ Ｘ １０−３以上であることを特徴とする高強
度複合防振材料である。すなわち、本発明の材料は、加
熱温度８００〜１１００℃で焼入、１５０〜５５０℃で
焼もどしする程度の焼入れ、焼もどしの熱処理が施され
る。The present invention provides a composite anti-vibration material consisting of three layers of an intermediate layer of Fe-based metal and an outer layer of Fe-based metal bonded to both surfaces of the intermediate layer, after being subjected to quenching and tempering heat treatment. The Fe-based metal of the outer layer has a Vickers hardness of 360 or more, and the Fe-based metal of the intermediate layer has a weight ratio of 5 to 25% Cr, Al. F containing 0.3-5%
E-based alloy with Vickers hardness of 200 or more and internal friction Q-
This is a high-strength composite anti-vibration material characterized in that 1 is 3 x 10-3 or more. That is, the material of the present invention is subjected to heat treatment such as quenching at a heating temperature of 800 to 1100°C and tempering at 150 to 550°C.
本発明材料は、上記のように焼入れ、焼もどしの熱処理
により外層のＦｅ基金属の機械的強度を得るものであり
、この強度としてビッカース硬さ３６０以上とした。ビ
ッカース硬さ３６０未満の硬さは、焼入れ、焼もどしの
熱処理によらずとも達成でき、また、木工丸鋸用ディス
ク材等比較的低硬さ用途にも不向きであるため、本発明
範囲から除外した。The material of the present invention obtains the mechanical strength of the Fe-based metal of the outer layer through the heat treatment of quenching and tempering as described above, and this strength is defined as a Vickers hardness of 360 or more. Vickers hardness of less than 360 can be achieved without heat treatment such as quenching and tempering, and it is also unsuitable for relatively low hardness applications such as disk materials for woodworking circular saws, so it is excluded from the scope of the present invention. did.
また、本発明に係る中間層のＦｅ基金属は、上記熱処理
によって、過度の焼なまし効果を受けて軟化すること、
または焼入れ硬化を受けて硬化し、内部摩擦Ｑ−’を低
下しないものである。すなわち、広い焼入れ焼もどし熱
処理条件の範囲に亘り、フェライト組織を維持し、硬さ
はビッカース硬さ２００〜３６０の範囲で用途に応じて
調整可能であり、かつこの広い条件範囲内で内部摩擦Ｑ
−’は３Ｘ］Ｏ’以上と高い値が得られるものである。In addition, the Fe-based metal of the intermediate layer according to the present invention is softened by an excessive annealing effect by the heat treatment,
Alternatively, it is hardened by quenching and does not reduce internal friction Q-'. In other words, the ferrite structure can be maintained over a wide range of quenching and tempering heat treatment conditions, the hardness can be adjusted depending on the application within the Vickers hardness range of 200 to 360, and the internal friction Q can be maintained within this wide range of conditions.
-' is a value as high as 3X]O' or more.
このため、複合体全体の耐摩耗性、機械的強度を従来材
に比し大幅に向上することが可能となった。For this reason, it has become possible to significantly improve the wear resistance and mechanical strength of the composite as a whole compared to conventional materials.
以上から本発明の中間層のＦｅ基金属としては、ビッカ
ース硬さ２００以上、内部摩擦Ｑ−’を３Ｘ１０−３以
上と規定した。From the above, the Fe-based metal of the intermediate layer of the present invention is specified to have a Vickers hardness of 200 or more and an internal friction Q-' of 3X10-3 or more.
本発明において中間層のＦｅ基金属は、重量％でＣｒ
５〜２５％、Ａｌ ０．３〜５％、残部Ｆｅおよび不可
避不純物からなる合金とする他、さらにそれぞれ特定量
のＮｉ、Ｓｉ、Ｃｕ、Ｍｏの１種または２種以上を添加
され、ビッカース硬さ２２０以上としたもの。さらに、
これにＴｉ、 Ｎｂ、 Ｂ の１種または２種以上を
２％以下添加した材料とすることが望ましい。In the present invention, the Fe-based metal of the intermediate layer is Cr in weight%.
5-25% Al, 0.3-5% Al, balance Fe and unavoidable impurities, and a specific amount of one or more of Ni, Si, Cu, and Mo is added to achieve Vickers hardness. Those with a diameter of 220 or more. moreover,
It is desirable to use a material to which 2% or less of one or more of Ti, Nb, and B is added.
次に中間層のＦｅ基金属の成分限定理由を述べる。Next, the reason for limiting the composition of the Fe-based metal in the intermediate layer will be described.
Ｃｒは振動減衰能を高めるための成分であって、５％未
満では十分な減衰能が得られない。また、２５％を越え
ると減衰能は低下し、がっ、加工性が劣化する。Cr is a component for increasing vibration damping ability, and if it is less than 5%, sufficient damping ability cannot be obtained. Moreover, if it exceeds 25%, the damping ability will decrease and the workability will deteriorate.
ＡｌもＣｒと同様に、振動減衰能を増加させるが、０．
３％未満ではその効果が得られず、５％を越えると加工
性が劣化するのでＡｌ ０．３〜５％とした。Similar to Cr, Al also increases vibration damping ability, but 0.
If the Al content is less than 3%, the effect cannot be obtained, and if it exceeds 5%, the workability deteriorates, so the Al content is set to 0.3 to 5%.
Ｎｉ、Ｃｕ、Ｓｉ、Ｍｏは、８００−１１００℃からの
焼入、１５０〜５５０℃での焼もどしの熱処理により、
減衰能を低下させることなく、硬さを増大させるために
必要な元素であり、単独また、複合で添加されて効果を
示す。そしてその添加量はＮｉ Ｏ，５〜６％、Ｃｕ
０．１〜３％、Ｍｏ ０．５〜４％、Ｓｉ ０．３〜２
％である。上記それぞれの下限を切る場合、その効果は
認められない。また、上限を越えても添加に見合う効果
は望められないから、それぞれその範囲内に止める。た
だし、全体で１０％を越えると加工性が劣化するから、
複合添加の場合１０％以下とする。Ni, Cu, Si, and Mo are hardened at 800-1100°C and tempered at 150-550°C.
It is an element necessary to increase hardness without reducing damping ability, and is effective when added alone or in combination. The amount of addition is NiO, 5-6%, Cu
0.1-3%, Mo 0.5-4%, Si 0.3-2
%. If the lower limit of each of the above is exceeded, the effect will not be recognized. Further, since no effect commensurate with the addition can be expected even if the upper limit is exceeded, the amount should be kept within each range. However, if the total amount exceeds 10%, the workability will deteriorate, so
In the case of composite addition, it should be 10% or less.
Ｔｉ、Ｎｂ、Ｂは焼入加熱に伴う結晶粒の粗大化を防止
し靭性を保つために有効であるので、特に焼入加熱温度
か高い場合に有効である。しかし、２％を越えると加工
性を害するので２％以下に制限した。Ti, Nb, and B are effective for preventing coarsening of crystal grains due to quenching heating and maintaining toughness, and are particularly effective when the quenching heating temperature is high. However, if it exceeds 2%, workability will be impaired, so it was limited to 2% or less.
以上の組成による中間層のＦｅ基金属は焼入焼もどし後
も前記のようにフェライト相であることが特徴である。The Fe-based metal of the intermediate layer having the above composition is characterized in that it remains in the ferrite phase even after quenching and tempering, as described above.
一方、外層のＦｅ基金属は、耐摩耗性等必要な機械的性
質を得るため、焼入れ、焼もどしにより、マルテンサイ
ト、トルースタイトまたはソルバイト組織とする。材質
的には、ビッカース硬さ３６０以上が得られるものであ
ればよく、組成はとくに限定されない。On the other hand, the Fe-based metal of the outer layer is hardened and tempered to form a martensite, troostite, or sorbite structure in order to obtain necessary mechanical properties such as wear resistance. The material may be any material as long as it has a Vickers hardness of 360 or more, and the composition is not particularly limited.
第１表に示す中間層のＦｅ基金属用と外層のＦｅ基金属
用より、それぞれ厚さ５ｍｍｔの板材を作製し、Ｎｏ、
１〜Ｎ ｏ、 １３の組合せで中間層のＦｅ基金属用合
金板を芯材と、その両面に外層のＦｅ基金属用合金板を
重ね合わせて熱間圧延により接合し、圧延後の板厚が合
計で３ｍｍｔになるように仕上げた。Plate materials with a thickness of 5 mm were prepared from the Fe-based metal intermediate layer and the Fe-based metal outer layer shown in Table 1.
In the combinations 1 to No. 13, the intermediate layer Fe-based metal alloy plate is superimposed on both sides of the core material, and the outer layer Fe-based metal alloy plate is superimposed and joined by hot rolling, and the plate thickness after rolling is It was finished so that the total weight was 3mmt.
なお、従来材Ｎｏ、１４は、単体材で板厚は同じく３１
ＩＩ［ｌｔとした。In addition, conventional material No. 14 is a single material with the same plate thickness of 31.
II [lt.
これらにそれぞれ第２表に示す熱処理を施し、それぞれ
の外層のＦｅ基金属および単体材Ｎｏ、１４の熱処理後
の硬さ、本体で測定した内部摩擦Ｑ−″および引張強さ
を測定した。その結果を第２表に示す。一方Ｎｏ、１〜
Ｎｏ、１３の中間層のＦｅ基金属に単体で第２表に示す
熱処理を施し、硬さ、および内部摩擦Ｑ−１を測定して
第２表中間層のＦｅ基金属欄に示すデータを得た。Each of these was subjected to the heat treatment shown in Table 2, and the hardness after heat treatment of the Fe-based metal of each outer layer and single material No. 14, internal friction Q-'' measured on the main body, and tensile strength were measured. The results are shown in Table 2. On the other hand, No. 1~
The Fe-based metal of the intermediate layer of No. 13 was subjected to the heat treatment shown in Table 2 alone, and the hardness and internal friction Q-1 were measured to obtain the data shown in the Fe-based metal column of the intermediate layer of Table 2. Ta.
なお第２表の内部摩擦Ｑ−１は、静電駆動型振動の減衰
曲線より求めた値であり、歪振幅ｌサイクル当りの失わ
れるエネルギの大きさを示すものである。Ｑ−”が大き
いほど振動エネルギを合金内部で熱に変換する割合が大
きく、防振効果が大であることを意味する。Note that the internal friction Q-1 in Table 2 is a value determined from the attenuation curve of electrostatically driven vibration, and indicates the amount of energy lost per 1 cycle of strain amplitude. The larger the value of Q-'', the greater the rate at which vibration energy is converted into heat within the alloy, which means that the vibration-proofing effect is greater.
第２表によると、本発明材Ｎｏ、１０の中間層のＦｅ基
金属は、比較材Ｎｏ、１２の低Ａｌ材に対し、硬さ、内
部摩擦Ｑ−１がともに高く、この内部摩擦Ｑ−’は本体
の内部摩擦を高める結果となっている。According to Table 2, the Fe-based metal of the intermediate layer of the invention material No. 10 has higher hardness and internal friction Q-1 than the low Al material of comparative material No. 12, and this internal friction Q- ' results in increased internal friction of the main body.
また、Ｎｉ、Ｃｕ、Ｍｏ、Ｓｉを含むＮｏ、１−９はそ
のＮ０９５と前記Ｎｏ、１０との対比から判るように、
内部摩擦Ｑ−１を低下することなく硬さを大幅に上昇し
ており、結果として本体の引張強さを増加している。こ
れに対して、比較例Ｎｏ、１１は中間層のＦｅ基金属の
成分が不適正のため、焼入、焼もどし後の内部摩擦Ｑ−
’が０．８Ｘ１０−３と低く、複合後の本体の内部摩擦
Ｑ−”も０．３Ｘ１０−３と低く、防振特性が劣る。ま
た、Ｎｏ、１２は、中間層のＦｅ基金属が低Ａｌのため
、硬さも低く、内部摩擦Ｑ−’も小さい。そのため、本
体の内部摩擦Ｑ−”は１．８×１０−３と小さく、引張
強さも低めである。Ｎｏ、１３は中間層のＦｅ基金属が
ほぼ純鉄と同一のため焼入焼もどし後の内部摩擦Ｑ−”
は３Ｘ１０−３以上であるが、硬さかビッカース硬さ１
１０と極端に低いため、本体の引張強さは８５ｋｇｆ
／ｍ＋ｎ’と低い値である。なお、中間層材として、Ｆ
ｅ−２％Ｎｉ材料を使用するものも強度的にはほぼＮｏ
、１３と同様である（Ｎｉ添加の目的は外層材との接合
強度を向上するためである）。In addition, No. 1-9 containing Ni, Cu, Mo, and Si, as seen from the comparison between No. 10 and No. 10,
The hardness is significantly increased without decreasing the internal friction Q-1, and as a result, the tensile strength of the main body is increased. On the other hand, in Comparative Example No. 11, the internal friction after quenching and tempering Q-
' is as low as 0.8X10-3, and the internal friction Q-'' of the main body after composite is also as low as 0.3X10-3, resulting in inferior vibration damping properties.In addition, No. 12 has a low Fe-based metal in the intermediate layer. Since it is made of Al, the hardness is low and the internal friction Q-' is also small. Therefore, the internal friction Q-' of the main body is as small as 1.8 x 10-3, and the tensile strength is also low. No. 13 has internal friction after quenching and tempering because the Fe-based metal in the intermediate layer is almost the same as pure iron.
is 3X10-3 or more, but the hardness or Vickers hardness is 1
10, which is extremely low, so the tensile strength of the main body is 85kgf.
/m+n', which is a low value. In addition, as an intermediate layer material, F
Those using e-2%Ni material are also almost No. 1 in terms of strength.
, 13 (the purpose of adding Ni is to improve the bonding strength with the outer layer material).
以上述べたように、本発明の金属の組合せは、引張強さ
１００ｋｇｆ／ｍｍ”が得られ、内部摩擦Ｑ−’も大き
く、優れた防振特性を有することがわかる。As described above, it can be seen that the metal combination of the present invention has a tensile strength of 100 kgf/mm'', a large internal friction Q-', and excellent vibration damping properties.
以上述べたように本発明の防振材料は焼入れ焼もどし熱
処理により、外層のＦｅ基金属に必要な耐摩耗性を与え
るもので、中間層のＦｅ基金属は、その広い熱処理条件
範囲に亘り高い内部摩擦Ｑ−”と高い機械的強度を兼備
するものである。この防振材料は従来中間層材として、
純鉄やＦ ｅ−２％Ｎｉ合金を使用するものに比し、格
段に高い機械的強度を有して、各種工具、機械構造用と
して有益な防振材料の提供が可能となった。As described above, the anti-vibration material of the present invention imparts the necessary wear resistance to the Fe-based metal of the outer layer through quenching and tempering heat treatment, and the Fe-based metal of the intermediate layer has high wear resistance over a wide range of heat treatment conditions. It has both internal friction Q-'' and high mechanical strength.This vibration-proof material has traditionally been used as an intermediate layer material.
Compared to those using pure iron or Fe-2%Ni alloy, it has become possible to provide a vibration isolating material that has significantly higher mechanical strength and is useful for various tools and machine structures.
中間層のＦｅ基金属、外層のＦｅ基金属からなる複合防
振材料において本発明材の中間層のＦｅ基金属は、外層
のＦｅ基金属に所定の耐摩耗性、機械的性質を付与する
ための広範な焼入れ、焼もどしの熱処理条件に亘り、高
い内部摩擦Ｑ’と高い機械的強度を示し、従来困難であ
った複合体全体の内部摩擦Ｑ−”と高強度の両立を達成
するものである。In a composite anti-vibration material consisting of an Fe-based metal in the intermediate layer and a Fe-based metal in the outer layer, the Fe-based metal in the intermediate layer of the material of the present invention imparts predetermined wear resistance and mechanical properties to the Fe-based metal in the outer layer. It exhibits high internal friction Q' and high mechanical strength over a wide range of quenching and tempering heat treatment conditions, and achieves both internal friction Q' and high strength for the entire composite, which was previously difficult. be.
Claims (1)
両面にそれぞれ接合された外層のＦｅ基金属の三層から
なる複合防振材料において、焼入れ、焼もどし熱処理さ
れた後、前記外層のＦｅ基金属は硬さがビッカース硬さ
３６０以上であり、前記中間層のＦｅ基金属は重量比で
、Ｃｒ５〜２５％、Ａｌ０．３〜５％を含むＦｅ基合金
でビッカース硬さ２００以上かつ内部摩擦Ｑ＾−＾１が
３×１０＾−＾３以上であることを特徴とする高強度複
合防振材料。 ２、中間層のＦｅ基金属は重量比で、Ｃｒ５〜２５％、
Ａｌ０．３〜５％を含有し、さらにＮｉ０．５〜６％、
Ｃｕ０．１〜３％、Ｍｏ０．５〜４％、Ｓｉ０．３〜２
％の１種または２種以上、ただし合計で１０％以下を含
有し、残部Ｆｅおよび不可避不純物からなり、ビッカー
ス硬さ２２０以上である請求項１記載の高強度複合防振
材料。 ３、中間層のＦｅ基金属は重量比で、Ｃｒ５〜２５％、
Ａｌ０．３〜５％を含有し、Ｎｉ０．５〜６％、Ｃｕ０
．１〜３％、Ｍｏ０．５〜４％、Ｓｉ０．３〜２％の１
種または、２種以上ただし合計で１０％以下を含有し、
さらにＴｉ、Ｎｂ、Ｂの１種または２種以上を合計で２
％以下を含有し、残部Ｆｅおよび不可避不純物からなり
、ビッカース硬さ２２０以上である請求項１記載の高強
度複合防振材料。[Claims] 1. In a composite vibration damping material consisting of three layers of an intermediate layer of Fe-based metal and an outer layer of Fe-based metal bonded to both surfaces of the intermediate layer, quenching and tempering heat treatment are performed. The Fe-based metal of the outer layer has a Vickers hardness of 360 or more, and the Fe-based metal of the intermediate layer is an Fe-based alloy containing 5 to 25% Cr and 0.3 to 5% Al by weight. A high-strength composite anti-vibration material having a Vickers hardness of 200 or more and an internal friction Q^-^1 of 3x10^-^3 or more. 2. The Fe-based metal in the intermediate layer has a weight ratio of 5 to 25% Cr;
Contains 0.3-5% Al, further 0.5-6% Ni,
Cu0.1-3%, Mo0.5-4%, Si0.3-2
2. The high-strength composite anti-vibration material according to claim 1, wherein the high-strength composite anti-vibration material has a Vickers hardness of 220 or more. 3. The Fe-based metal in the intermediate layer has a weight ratio of 5 to 25% Cr;
Contains Al0.3-5%, Ni0.5-6%, Cu0
．． 1-3%, Mo0.5-4%, Si0.3-2% 1
Contains a species or two or more species but not more than 10% in total,
Furthermore, one or more of Ti, Nb, and B are added in total to 2
% or less, the remainder consisting of Fe and unavoidable impurities, and has a Vickers hardness of 220 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20546090A JPH0489238A (en) | 1990-08-02 | 1990-08-02 | High strength composite vibration-damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20546090A JPH0489238A (en) | 1990-08-02 | 1990-08-02 | High strength composite vibration-damping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0489238A true JPH0489238A (en) | 1992-03-23 |
Family
ID=16507246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20546090A Pending JPH0489238A (en) | 1990-08-02 | 1990-08-02 | High strength composite vibration-damping material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0489238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993021012A1 (en) * | 1992-04-20 | 1993-10-28 | Nippon Steel Corporation | Thin-sheet-clad steel sheet and method of production thereof |
-
1990
- 1990-08-02 JP JP20546090A patent/JPH0489238A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993021012A1 (en) * | 1992-04-20 | 1993-10-28 | Nippon Steel Corporation | Thin-sheet-clad steel sheet and method of production thereof |
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