JPS63158320A - Highly abrasion resistive sliding material - Google Patents
Highly abrasion resistive sliding materialInfo
- Publication number
- JPS63158320A JPS63158320A JP5362586A JP5362586A JPS63158320A JP S63158320 A JPS63158320 A JP S63158320A JP 5362586 A JP5362586 A JP 5362586A JP 5362586 A JP5362586 A JP 5362586A JP S63158320 A JPS63158320 A JP S63158320A
- Authority
- JP
- Japan
- Prior art keywords
- carbide
- sliding material
- solid lubricating
- filled
- carbides
- 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 49
- 238000005299 abrasion Methods 0.000 title abstract 2
- 239000007787 solid Substances 0.000 claims abstract description 17
- 150000001247 metal acetylides Chemical class 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 14
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 235000006408 oxalic acid Nutrition 0.000 abstract description 4
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract 4
- 239000012768 molten material Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 description 7
- 239000010439 graphite Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000604 Ferrochrome Inorganic materials 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 101000754919 Homo sapiens Ribosomal oxygenase 2 Proteins 0.000 description 1
- 102100022092 Ribosomal oxygenase 2 Human genes 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000866 electrolytic etching Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、建設機械の軸受部等に用いられる耐荷重性と
耐摩耗性に優れた高耐摩耗摺動材に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a highly wear-resistant sliding material that has excellent load-bearing properties and wear resistance and is used in bearings of construction machines and the like.
従来の技術
通常のブツシュなどの軸受メタル材は耐焼付性、低摩擦
性などに優れているが、建設機械の軸受部に要求される
耐高面圧性や耐摩耗性を満足することができない。BACKGROUND OF THE INVENTION Although bearing metal materials such as ordinary bushings have excellent seizure resistance and low friction, they cannot satisfy the high surface pressure resistance and wear resistance required of bearings for construction machinery.
また、ｐｅ系焼結摺動材であれば、そのポーラスな部分
に潤滑油を保持できるからある程度の耐摩耗性が得られ
る。Furthermore, if the PE-based sintered sliding material is used, lubricating oil can be retained in its porous portion, so that a certain degree of wear resistance can be obtained.
発明が解決しようとする問題点
しかしながらｐｇ系焼結摺動材のポーラスな部分な体積
に占める割合、つまり空孔率を大きくして多量の潤滑油
を保持できるようにすると、その反面に全体の密度が粗
となって強度が弱くなって耐荷重性が劣るので、空孔率
には限度があるから、耐摩耗性には限度があって建設機
械の軸受部に要求される耐摩耗性を満足することができ
ない。Problems to be Solved by the Invention However, if the proportion of the porous part of the pg-based sintered sliding material, that is, the porosity, is increased so that it can hold a large amount of lubricating oil, on the other hand, the overall volume The density becomes coarse, the strength is weak, and the load bearing capacity is poor.There is a limit to the porosity, so there is a limit to the wear resistance, which is required for the bearings of construction machinery. I can't be satisfied.
問題点を解決するための手段及び作用
７ｇ系をベースとし炭化物が点在する素材における表面
の炭化物を除去した凹部内に固体潤滑材を充填して、優
れた耐摩耗性と耐荷重性を得られるようにしたものであ
る。Means and Effects for Solving Problems Based on the 7g system, a solid lubricant is filled into the recesses of a material dotted with carbides from which the carbides on the surface have been removed to obtain excellent wear resistance and load carrying capacity. It was designed so that
実施例
第１図は本発明に係る摺動材の一例を模式的に示すもの
であり、Ｆｅ系をベースとし炭化物２が点在する素材１
における表面の炭化物２を除去した凹部３内に固体潤滑
材４を充填しである。Embodiment FIG. 1 schematically shows an example of a sliding material according to the present invention, and shows a material 1 based on Fe and dotted with carbides 2.
A solid lubricant 4 is filled in the recess 3 from which the carbide 2 on the surface has been removed.
前記素材１としてはｐｇ−ｃ−ｃｒ 等のＦ＃系をベー
スとする溶製材料や高炭素フェロクロムとｐｇ粉体又は
適当なｐｇ−（：ｒ合金粉と炭素とｐｇ粉とを高密度に
焼結した焼結材等であり、溶製材の場合には炭化物が相
状として表われ、焼結材の場合には炭化物が点在するも
のであり、それらの表面をシュー酸水溶液等の溶液で陽
極溶解、つまり電解エツチングして表面の炭化物を溶解
除去して凹部を形成し、この凹部内にナイロン、黒鉛、
ＮＯ５２などの固体潤滑材を充填することで製造される
。The material 1 is a melted material based on F# system such as pg-c-cr, high carbon ferrochrome and pg powder, or suitable pg-(:r alloy powder, carbon and pg powder in high density). It is a sintered material, etc. In the case of ingot material, carbide appears as a phase, and in the case of sintered material, carbide is scattered. The carbide on the surface is dissolved and removed by anodic dissolution, that is, electrolytic etching, to form a recess, and nylon, graphite,
It is manufactured by filling it with a solid lubricant such as NO52.
溶製材の具体例としてはｐｇ系をベースに、セメンタイ
ト、クロム炭化物ｃｒ、ｃ５．ｃｒ２．ｃ６、モリブデ
ン炭化物ＮＯ，Ｃの一再又は２種以上が体積で２０％以
上、好ましくは３０％以上含有できるように炭素と（：
ｒ、Ｊｉｏの一種又は２種以上を添加したものであり、
焼結材としては前述と同様な炭化物が２０％以上含有し
、かつ空孔率が５〜１５％のものである。Specific examples of ingot materials include cementite, chromium carbide CR, C5. cr2. Carbon and (:
r, one or more types of Jio are added,
The sintered material contains 20% or more of the same carbide as described above and has a porosity of 5 to 15%.
つまり、溶製材の場合には炭化物を除去した凹部のみに
固体潤滑材を充填するので炭化物が３０％以上であるこ
とが好ましく、焼結材の場合にはポーラスな部分にも固
体潤滑材が充填されるから炭化物は２０％以上でも十分
である。In other words, in the case of melt-sawn materials, the solid lubricant is filled only in the recesses from which carbides have been removed, so it is preferable that the carbide content is 30% or more, and in the case of sintered materials, the solid lubricant is also filled in the porous parts. Therefore, it is sufficient that the carbide content is 20% or more.
なお、ナイロンを充填するには素材を加熱して溶融して
流し込みすれば良く、黒鉛はＣＶＤ法によって充填すれ
ば良く、ＮＯ５，は油脂と混合してグリース状としてす
り込めば良い。Note that nylon can be filled by heating the material to melt it and pouring it in, graphite can be filled by CVD, and NO5 can be mixed with oil and fat and rubbed in as a grease.
また、凹部３と固体潤滑材４との間に潤滑油を含浸させ
ても良い。Further, lubricating oil may be impregnated between the recess 3 and the solid lubricant 4.
また、素材中には普通元素としてｓｉ 、ｖル。In addition, si and vru are common elements in the material.
Ｔｉ、Ｖ、ＡＩ、Ｆ、Ｓ、Ｐ、Ｂ、Ｃａ などｔｔ母相
の強化、切削性向上、脱酬などの目的で０．００１体積
％以上含まれていても良い。Ti, V, AI, F, S, P, B, Ca, etc. may be contained in an amount of 0.001% by volume or more for the purpose of strengthening the tt matrix, improving machinability, and removing metal.
次に具体例を示す。A specific example is shown below.
第２図はｐｇ−Ｃ−Ｃｒ ３元系の素材の１０００℃
における等温断面相平衡図であり、（イ）の範囲が炭化
物Ｍ、Ｃ＋オーステナイ）ｒ、（ロ）の範囲が炭化物Ｍ
、Ｃ，＋オーステナイｈｒ、（ハ）の範囲が炭化物”！
３ Ｃ６＋オーステナイトγ、に）の範囲が炭化物Ａ’
＊ｓ Ｃａ ＋ ７エライトαであり、母相はマルテン
サイト又はパーライトになると共に、太線は溶解の限界
を示す。Figure 2 shows the pg-C-Cr ternary material at 1000°C.
is an isothermal cross-sectional phase equilibrium diagram in which the range (a) is carbide M, C+austenite)r, and the range (b) is carbide M
, C, + austenite hr, (c) range is carbide”!
3 C6 + austenite γ,) range is carbide A'
*s Ca + 7 elite α, the parent phase is martensite or pearlite, and the thick line indicates the limit of dissolution.
（具体例１）
第２図中ノ（Ｇ） 、 （ｂ）点に相当するＣｒ １１
１度に相当するステンレス鋼を浸炭によって（ｌり 、
（ｂ）点の炭素濃度まで加炭した溶製材を素材とする
。(Specific example 1) Cr 11 corresponding to points (G) and (b) in Figure 2
By carburizing stainless steel equivalent to 1 degree
(b) The raw material is ingot lumber that has been carburized to the carbon concentration at point.
この素材の組織写真が第３図、第４図に示すようになり
、炭化物量がほぼ３０体積％を越えているために炭化物
が接触し合っていることが判る。Photographs of the structure of this material are shown in FIGS. 3 and 4, and it can be seen that the carbides are in contact with each other because the amount of carbides exceeds approximately 30% by volume.
この素材の表面を１０％シュー酸水溶液で電解エツチン
グして炭化物だけを優先的に溶出して除去することでポ
ーラスな状態、っまり凹部を形成する。The surface of this material is electrolytically etched with a 10% oxalic acid aqueous solution to preferentially elute and remove only the carbides, thereby forming a porous state with tightly recessed portions.
この素材の凹部に固体潤滑材を充填して摺動材とする。A solid lubricant is filled in the recesses of this material to form a sliding material.
（具体例２）
第２図中Ｃ点に相当する組成するＦｅ−Ｃ−Ｃｒ系溶製
材を１０％シュー酸水溶液で電解エツチングして炭化物
を溶出して除去して凹部を形成する。この素材の組織は
第５図の写真に示すようになり、ポーラスな状態となっ
ている様子、つまり表面に凹部が形成されている様子が
良く判る。(Specific Example 2) A Fe--C--Cr based ingot material having a composition corresponding to point C in FIG. 2 is electrolytically etched with a 10% aqueous oxalic acid solution to elute and remove carbides to form recesses. The structure of this material is shown in the photograph in FIG. 5, and it can be clearly seen that it is in a porous state, that is, that recesses are formed on the surface.
この時の凹部は約４２体積％である。The concave portion at this time is approximately 42% by volume.
この後に、凹部に固体潤滑材を充填して摺動材とする。After this, the recesses are filled with a solid lubricant to form a sliding material.
（具体例３）
高炭素フェロクロムとＦ＃粉体又は適当なｐｔ−Ｃｒ合
金粉と炭素とＦｇ粉とを用いて１ｌＯＯ℃真空中で高密
度に焼結した焼結体を素材とし、その表面を１０％シュ
ー酸水溶液で電解エツチングして炭化物を溶出して除去
して凹部とする。(Specific Example 3) The material is a sintered body made of high carbon ferrochrome, F# powder or appropriate pt-Cr alloy powder, carbon and Fg powder, sintered to a high density in a vacuum at 100°C, and its surface The carbide is electrolytically etched with a 10% aqueous oxalic acid solution to elute and remove the carbide to form a recess.
この時の空孔部は５〜１５％であり、炭化物は２０体積
％程度であり、その表面は第５図の写真のようになった
。At this time, the pores accounted for 5 to 15%, the carbides accounted for about 20% by volume, and the surface looked like the photograph in FIG. 5.
この素材の表面に固体潤滑材を充填して摺動材とする。The surface of this material is filled with a solid lubricant to form a sliding material.
前述の具体例２において凹部にナイロン、黒鉛、Ｈａｓ
、を充填した摺動材の摩擦係数を測定したところ第６図
のようになった。第６図において（■）がナイロンを充
填したもの、（Δ）が黒鉛を充填したもの、（×）がＭ
ＯＳ、を充填したものであり 、（０）がエコノール樹
脂無給脂材である。In the above specific example 2, nylon, graphite, Has
When the friction coefficient of the sliding material filled with , was measured, it was as shown in Fig. 6. In Figure 6, (■) is filled with nylon, (Δ) is filled with graphite, and (×) is M
The material is filled with OS, and (0) is the Econol resin non-greasing material.
これにより、具体例２で製作した摺動材はエコノール樹
脂無給脂材と同様な１１！擦係数であることが判明し、
優れた摺動特性を有する。As a result, the sliding material manufactured in Example 2 has the same 11! It turns out that the friction coefficient is
Has excellent sliding properties.
前述の具体例２において凹部に黒鉛を充填した摺動体と
、ｌ’を系焼結摺動材（１０Ｐｂ−３５ル）と、ＬＢＣ
３銅系焼結摺動材の耐摩耗性を測定したところ第７図の
ようになった。（０）が黒鉛を充填した摺動体、（◇）
がＦｔ系焼結摺動材、（Δ）がＬＢＣＥ鋼系焼鋼接焼結
摺動材特性を示すＯ
但し、相手材は５５３Ｃ高焼人材で、摺動速度は１０〜
−１潤滑油量は２００ ＣＣ／３＠＠ αｔｇｏｃ、
試験時間は１時間であった。In the above-mentioned specific example 2, the sliding body whose recessed part is filled with graphite, the l'-based sintered sliding material (10Pb-35L), and the LBC
The wear resistance of the 3-copper-based sintered sliding material was measured and the results were as shown in Figure 7. (0) is a sliding body filled with graphite, (◇)
indicates the characteristics of Ft-based sintered sliding material and (Δ) indicates the characteristics of LBCE-based sintered steel welded sintered sliding material.
-1 lubricating oil amount is 200 CC/3@@αtgoc,
The test time was 1 hour.
この結果から具体例２の黒鉛を充填した摺動材の摩耗特
性が著しく優れていることが判る。This result shows that the graphite-filled sliding material of Example 2 has extremely excellent wear characteristics.
発明の効果
ｐｇ系のベースの表面の炭化物を除去して成る凹部内に
固体潤滑材を充填したので、その固体潤滑材によって優
れた耐摩耗性が得られると共に、ｐｇ系のベースである
から優れた耐荷重性が得られ、特に焼結体をベースとす
る場合には空孔率を小さくできて優れた耐荷重性が得ら
れる。Effects of the Invention Since the solid lubricant is filled in the recesses formed by removing the carbides on the surface of the PG-based base, the solid lubricant provides excellent wear resistance. In particular, when a sintered body is used as a base, the porosity can be reduced and excellent load-bearing properties can be obtained.
図面は本発明の実施例を示すものであって、第１図は模
式的説明図、第２図はＦｅ−Ｃ−Ｃｒ３元系の等温断面
相平衡図、第３図、第４図、第５図、第６図は表面の顕
微鏝写真、第７図は摩擦特性図表、第８図は摩擦特性図
表である。
１は素材、２は炭化物、３は凹部、４は固体潤滑材。The drawings show examples of the present invention, and FIG. 1 is a schematic explanatory diagram, FIG. 2 is an isothermal cross-sectional phase equilibrium diagram of the Fe-C-Cr ternary system, FIGS. 3, 4, and 4. Figures 5 and 6 are microscopic photographs of the surface, Figure 7 is a friction characteristic chart, and Figure 8 is a friction characteristic chart. 1 is the material, 2 is the carbide, 3 is the recess, and 4 is the solid lubricant.
Claims (1)
表面の炭化物２を除去した凹部３内に固体潤滑材４を充
填して成る高耐摩耗摺動材。This highly wear-resistant sliding material is made by filling a solid lubricant 4 into the recesses 3 of a Fe-based material 1 dotted with carbides 2 from which the carbides 2 on the surface have been removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5362586A JPS63158320A (en) | 1986-03-13 | 1986-03-13 | Highly abrasion resistive sliding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5362586A JPS63158320A (en) | 1986-03-13 | 1986-03-13 | Highly abrasion resistive sliding material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63158320A true JPS63158320A (en) | 1988-07-01 |
Family
ID=12948088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5362586A Pending JPS63158320A (en) | 1986-03-13 | 1986-03-13 | Highly abrasion resistive sliding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63158320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005330581A (en) * | 2004-04-22 | 2005-12-02 | Komatsu Ltd | Fe-BASED WEAR-RESISTANT SLIDING MATERIAL |
| US7094473B2 (en) | 2002-12-27 | 2006-08-22 | Komatsu Ltd. | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same |
| JP2007132491A (en) * | 2005-11-14 | 2007-05-31 | Hitachi Constr Mach Co Ltd | Slide member and manufacturing method therefor |
-
1986
- 1986-03-13 JP JP5362586A patent/JPS63158320A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7094473B2 (en) | 2002-12-27 | 2006-08-22 | Komatsu Ltd. | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same |
| US7279228B2 (en) | 2002-12-27 | 2007-10-09 | Komatsu Ltd. | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same |
| US7282078B2 (en) | 2002-12-27 | 2007-10-16 | Komatsu Ltd. | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same |
| US7473296B2 (en) | 2002-12-27 | 2009-01-06 | Komatsu, Ltd. | Wear-resistant sintered contact material, wear-resistant sintered composite contact component and method of producing the same |
| JP2005330581A (en) * | 2004-04-22 | 2005-12-02 | Komatsu Ltd | Fe-BASED WEAR-RESISTANT SLIDING MATERIAL |
| JP2007132491A (en) * | 2005-11-14 | 2007-05-31 | Hitachi Constr Mach Co Ltd | Slide member and manufacturing method therefor |
| JP4627713B2 (en) * | 2005-11-14 | 2011-02-09 | 日立建機株式会社 | Sliding member and manufacturing method thereof |
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