JPH03183744A - Ferrous sintered sliding material - Google Patents
Ferrous sintered sliding materialInfo
- Publication number
- JPH03183744A JPH03183744A JP32221189A JP32221189A JPH03183744A JP H03183744 A JPH03183744 A JP H03183744A JP 32221189 A JP32221189 A JP 32221189A JP 32221189 A JP32221189 A JP 32221189A JP H03183744 A JPH03183744 A JP H03183744A
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- iron
- sliding material
- based sintered
- abrasive components
- 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
- 239000000463 material Substances 0.000 title claims abstract description 45
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 6
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 61
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- -1 2 SiO_2 Chemical class 0.000 claims 1
- 230000013011 mating Effects 0.000 abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 abstract description 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 2
- 229910052682 stishovite Inorganic materials 0.000 abstract description 2
- 229910052905 tridymite Inorganic materials 0.000 abstract description 2
- 229910017888 Cu—P Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910002549 Fe–Cu Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 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、高速摺動性に冨む鉄系焼結部材に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an iron-based sintered member that is rich in high-speed sliding properties.
油潤滑下での高速摺動においては、高い耐摩耗性と優れ
た耐焼付性が要求される。例えば油圧部品の高速摺動部
にはＬＢＡ、Ｐ３１Ｃ等の青銅系または高力黄銅系の溶
製部材または焼結部材が使用されている。また負荷が余
り大きくない部位に用いられる摺動材では、Ｆｅ−Ｃｕ
−３ｎ系の焼結材や、この種の焼結材に塩浴軟窒化処理
または浸硫窒化処理を施したものが用いられている。High-speed sliding under oil lubrication requires high wear resistance and excellent seizure resistance. For example, bronze-based or high-strength brass-based melted or sintered members such as LBA and P31C are used in high-speed sliding parts of hydraulic parts. In addition, for sliding materials used in areas where the load is not very large, Fe-Cu
-3n-based sintered materials and materials obtained by subjecting this type of sintered material to salt bath nitrocarburizing treatment or sulphonitriding treatment are used.
前記のような銅系の摺動材は、その摺動特性、特に耐焼
付性に優れているが材料が高価であり、さらに油圧部品
等では鋳込みや接合法等の複雑な工程を用いるため部品
コストが一層高くなる。The above-mentioned copper-based sliding materials have excellent sliding properties, especially seizure resistance, but they are expensive materials, and in addition, hydraulic parts require complicated processes such as casting and bonding, so parts cannot be manufactured easily. The cost will be even higher.
焼結により得られる摺動材はＦｅ５Ｆｅ−Ｃ。The sliding material obtained by sintering is Fe5Fe-C.
Ｆｅ−Ｃｕ、Ｆｅ−Ｃｕ−Ｃ番茶が用いられ、価格的に
有利で、高い耐摩耗性を有しているが、鉄系の相手部材
に移着し易く耐焼付性に劣るという問題点がある。さら
に鉄系焼結材に軟窒化処理または浸硫窒化処理等を施し
ても、その生成硬質皮膜は厚さが３〜１５−と薄くて耐
摩耗寿命が短く、処理工程が増える割には利得が少いと
いう問題点もある。Fe-Cu and Fe-Cu-C bancha are used and are advantageous in price and have high wear resistance, but they have the problem that they tend to transfer to iron-based mating parts and have poor seizure resistance. be. Furthermore, even if iron-based sintered materials are subjected to soft nitriding or sulfonitriding, the resulting hard coating is as thin as 3 to 15-15 mm and has a short wear-resistant life. There is also the problem that there are few.
本発明は、前述した問題点の解消を目的とし、銅系摺動
材より廉価な鉄系摺動材でありながら、鉄系の相手部材
に焼付くことを防止することにより、高い耐摩耗性と優
れた耐焼付性を持たせた鉄系焼結摺動材を提供するもの
である。The present invention aims to solve the above-mentioned problems, and although it is an iron-based sliding material that is cheaper than copper-based sliding materials, it has high wear resistance by preventing seizing on iron-based mating members. The present invention provides an iron-based sintered sliding material with excellent seizure resistance.
〔課題を解決するための手段］
前述した目的を遠戚するため、本発明は、Ｃが０．２〜
２ｗｔ％、Ｃｕが０．５〜２０ｗｔ％、Ｐが０．０５〜
２ｗｔ％、研摩材成分が００１〜１０ｗｔ％、残部が主
としてＦｅの組成成分を有する、
ことを特徴とする鉄系焼結摺動材となっている。[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a method in which C is 0.2 to 0.2.
2wt%, Cu 0.5~20wt%, P 0.05~
The iron-based sintered sliding material is characterized by having an abrasive component of 0.2 wt%, an abrasive component of 0.001 to 10 wt.%, and the remainder mainly consisting of Fe.
Ｃ作 用〕
本発明の鉄系焼結摺動材は、その＆Ｉｌ威成分中に研摩
材成分を有している。C Effect] The iron-based sintered sliding material of the present invention has an abrasive component in its abrasive component.
一方、通常の鉄系焼結摺動材は負荷の下に使用されてい
るときには鉄系の相手部材に移着し、この移着層の生成
により焼付く。On the other hand, when a normal iron-based sintered sliding material is used under load, it transfers to an iron-based mating member and seizes due to the formation of this transfer layer.
本発明の鉄系焼結摺動材中の研摩材成分は、前記負荷の
下で使用されたときに鉄系の相手部材へ移着した移着物
を常にこすり取り、焼付きの原因となる移着物を相手部
材面に生成させない。従って、相手部材への焼付きが抑
止され、同時に組成成分中のＣｕは前記研摩側成分との
濡れ性がよいことからＦｅ相との結合を強固となし、研
摩剤成分の剥落が防止される。The abrasive component in the iron-based sintered sliding material of the present invention constantly scrapes off the transferred substances that have migrated to the iron-based mating member when used under the above-mentioned load, and the abrasive component that causes seizure. Do not generate kimono on the other member's surface. Therefore, seizure to the mating member is suppressed, and at the same time, since Cu in the composition has good wettability with the abrasive side component, it forms a strong bond with the Fe phase and prevents the abrasive component from peeling off. .
したがって、本発明の鉄系焼結摺動材は、材料費が安価
で比較的低度な製造コストで得られるにも拘らず、高速
摺動下においても高い耐摩耗性と優れた耐焼付性が得ら
れ、生産性の向上が図れる。Therefore, the iron-based sintered sliding material of the present invention has high wear resistance and excellent seizure resistance even under high-speed sliding, even though the material cost is low and the manufacturing cost is relatively low. can be obtained, and productivity can be improved.
次に本発明の具体的な一実施例につき図面を参照しつつ
説明する。Next, a specific embodiment of the present invention will be described with reference to the drawings.
本発明の鉄系焼結摺動材における高い耐摩耗性と優れた
耐焼付性は、主成分であるＦｅ以外の各組成成分を、そ
れら各組成成分が最も効率よく挙動することができる範
囲に定められることにより得られる。The high wear resistance and excellent seizure resistance of the iron-based sintered sliding material of the present invention are achieved by controlling the composition components other than Fe, the main component, within the range where each composition component can behave most efficiently. Obtained by being determined.
Ｃについては、ＣはＦｅに固溶し強度を増加するととも
に、ＦｅのＣｕに対する濡れ性を低下させて含Ｃｕ系焼
結体の収縮を抑制し寸法制御を容易にする作用がある。Regarding C, C dissolves in Fe and increases the strength, and also reduces the wettability of Fe to Cu, suppresses shrinkage of the Cu-containing sintered body, and facilitates dimensional control.
その量が０．２ｗｔ％未満ではその効果が得られず、逆
に２ｗｔ％を超えると焼付性が低下しそれに伴って強度
が低下するので、Ｃの含有量は０．２〜２ｗｔ％とした
。If the amount is less than 0.2 wt%, the effect cannot be obtained, and on the other hand, if it exceeds 2 wt%, the seizability and strength will decrease accordingly, so the content of C was set at 0.2 to 2 wt%. .
Ｃｕについては、ＣｕはＣとともにＦｅに固溶してこれ
を強化し、合金の強度および耐摩耗性を向上させ、さら
に研摩材成分としての金属酸化物との濡れ性がよくこれ
とＦｅ相との結合を強固にし、摺動状態下で前記金属酸
化物等の硬質分散粒子が容易に脱落することを防止する
作用がある。その量が０．５ｗｔ％未満では強度および
耐摩耗性が不足し、逆に２０−ｔ％を超えると系全体の
素地が軟質化して耐摩耗性が劣化するので、Ｃｏの含有
量は０．５〜２０ｗｔ％とした。Regarding Cu, Cu is dissolved in Fe together with C to strengthen it and improve the strength and wear resistance of the alloy. Furthermore, it has good wettability with metal oxides as abrasive components, and is compatible with Fe phase. This has the effect of strengthening the bond between the two and preventing the hard dispersed particles such as the metal oxide from falling off easily under sliding conditions. If the amount is less than 0.5 wt%, the strength and wear resistance will be insufficient, and if it exceeds 20-t%, the base of the entire system will become soft and the wear resistance will deteriorate. The content was set at 5 to 20 wt%.
Ｐについては、Ｐは焼結を活性化してＣおよびＣｕのＦ
ｅ相への固溶拡散を促進し、Ｐ共晶の析出により焼結体
の高密度化および耐摩耗性の向上に寄与する。その量が
０．０５ｗｔ％未満ではその効果が得られず、逆に２ｗ
ｔ％を超すと強度を低下させるので、Ｐの含有量は０．
０５〜２ｗｔ％とした。Regarding P, P activates sintering and F of C and Cu.
It promotes solid solution diffusion into the e-phase and contributes to increasing the density and improving the wear resistance of the sintered body through the precipitation of P eutectic. If the amount is less than 0.05wt%, the effect cannot be obtained;
If it exceeds t%, the strength will decrease, so the content of P should be 0.
05 to 2 wt%.
研摩材成分については、例えばＳｉＯ２、Ａ １ ＊
Ｏｓ、ムライトに代表されるようなアルミノケイ酸塩鉱
物またはスピネル等の金属酸化物が用いられる。Regarding abrasive components, for example, SiO2, A 1 *
Aluminosilicate minerals such as Os, mullite, or metal oxides such as spinel are used.
前記のようにＦｅ、、Ｆｅ −Ｃ，、Ｆｅ −Ｃｕ、、
Ｆｅ−Ｃｕ−Ｃ系焼結材は鉄系相手部材に移着し、これ
が原因となって焼付くが、この研摩剤成分を含有させる
ことにより、相手部材への移着物をこすり取り、鉄系焼
結材の耐焼付性を向上させる。金属酸化物の含有量は０
．１ｗｔ％未満ではその効果がなく、逆に１０−ｔ％を
超すと相手部材を損耗させるからその含有量は０．１〜
１０ｗｔ％、好ましくは０．５〜１ｗｔ％とした。As mentioned above, Fe, , Fe -C, , Fe -Cu, ,
The Fe-Cu-C based sintered material transfers to the iron-based mating member and causes seizing, but by containing this abrasive component, the transferred material on the mating member is scraped off, and the iron-based mating material is Improves the seizure resistance of sintered materials. Metal oxide content is 0
．． If it is less than 1wt%, it has no effect, and if it exceeds 10-t%, it will damage the mating member, so the content should be 0.1~
The content was 10 wt%, preferably 0.5 to 1 wt%.
以上のように策定した各組成成分にもとづく本発明の鉄
系焼結摺動材として、ブルドーザやパワーショベルの差
動遊星終減速機構に用いられるスラストリングについて
の実施例を示す。このスラストリングｌは第１図に示さ
れるように表裏関係に２つの摺動面２および２”を有す
るリング体となっている。An example of a thrust ring used in a differential planetary final reduction mechanism of a bulldozer or a power shovel will be shown as an iron-based sintered sliding material of the present invention based on each composition formulated as described above. As shown in FIG. 1, this thrust ring 1 is a ring body having two sliding surfaces 2 and 2'' on the front and back sides.
このスラストリング１は、粉末度が１００メッシュ（１
４９ｚｍ）以下の鉄粉、黒鉛、２００メツシユ（７５−
）以下の電解銅粉、２５０メツシユ（６２ｎ）以下の燐
鉄粉（Ｐ〜２７ｗｔ％、Ｆｅ〜残部）および５〜１０、
ｍのハイシリカ（以上いずれも市販品）を、Ｃ： ０．
８ｉｖｔ％ Ｃｕ：４ｗｔ％Ｐ ： ０．４ｗｔ
％ ５ｉ０２ ： ０．５ｗｔ％Ｆｅ：残部
とした混合粉に０．５ｗｔ％のステアリン酸亜鉛を外掛
けで加えて充分に混合した後、成形圧５Ｔ／ｃｍ”で圧
粉成形し、第１図に示されるように成形した後、還元雰
囲気が保たれるＡＸ炉で１１５０°Ｃ１１時間の焼結を
行って得られたものである。This thrust ring 1 has a fineness of 100 mesh (1
49zm) or less iron powder, graphite, 200 mesh (75-
) or less electrolytic copper powder, 250 mesh (62n) or less phosphorous iron powder (P ~ 27 wt%, Fe ~ balance) and 5 to 10,
m high silica (all of the above are commercially available products), C: 0.
8ivt% Cu: 4wt%P: 0.4wt
% 5i02: 0.5 wt% Fe: After adding 0.5 wt% zinc stearate to the remaining mixed powder and mixing thoroughly, it was compacted at a molding pressure of 5 T/cm'', as shown in Figure 1. After molding as shown in Figure 1, it was sintered at 1150°C for 11 hours in an AX furnace in which a reducing atmosphere was maintained.
このようなｉｉ１′ｌｉとされた本発明の鉄系焼結摺動
材は、高耐摩耗性を有するとともに優れた耐焼付性を示
し、その摺動特性を表わすＰＶ値は第２図に示されるよ
うに、高価な溶製材であるリン青銅または高力黄銅に劣
るが、他の在来の鉄系焼結摺動材に比べて優れた特性を
有し、Ｃｕ系焼結摺動材と殆んど変らない摺動特性が得
られた。The iron-based sintered sliding material of the present invention with such ii1'li exhibits high wear resistance and excellent seizure resistance, and the PV value representing its sliding characteristics is shown in Figure 2. Although it is inferior to phosphor bronze or high-strength brass, which are expensive melted materials, it has superior properties compared to other conventional iron-based sintered sliding materials, and is comparable to Cu-based sintered sliding materials. Almost unchanged sliding characteristics were obtained.
前記ＰＶ値は、摺動材が相手部材にＰ（ｋｇ／ｃ＋ａ”
）の圧力で圧接されるとともに摺動材と相手部材とが相
互にＶ （ｓ／Ｓ）の速度で摺動関係にある場合に、摺
動材が相手部材に焼付く状態となった時のＰとＶの相乗
値でこの値が高い程摺動性が優れている。The above-mentioned PV value means that the sliding material is P(kg/c+a") relative to the mating member.
), and the sliding material and the mating member are in a sliding relationship with each other at a speed of V (s/S), and the sliding material seizes to the mating member. The higher the synergistic value of P and V, the better the sliding properties.
この実施例における摺動材では、相手部材が１０ｍ１ｓ
の速度で定速回転している面に、本発明の鉄系焼結摺動
材より切りだしたテストピースを圧接し、その圧力を増
大していって両者が焼付く圧力の時を終点として、ＰＶ
値を求めたものである。In the sliding material in this example, the mating member is 10m1s
A test piece cut from the iron-based sintered sliding material of the present invention is pressed against a surface rotating at a constant speed of , P.V.
The value was calculated.
また、このＰＶ値の測定試験中における本発明摺動材が
相手部材面に擦過痕を生じさせる傾向（いわゆるかじり
性）も検査した。結果は、Ｃｕ系焼結材のかじり性と殆
んど変らず相手部材に与える影響も少く、摺動性がよく
優れた耐焼付性を有することが確認された。Furthermore, during this PV value measurement test, the tendency of the sliding material of the present invention to cause scratch marks on the surface of the mating member (so-called galling property) was also examined. The results showed that the galling property was almost the same as that of the Cu-based sintered material, the effect on the mating member was small, and it was confirmed that the material had good sliding properties and excellent seizure resistance.
さらに、この実施例における鉄系焼結摺動材であるスラ
ストリングを実体差動遊星終減速機構に用いて１０００
時間連続運転テストを行った。結果は第１表に示すよう
に優れた耐摩耗性を有することが確認された。Furthermore, the thrust ring, which is an iron-based sintered sliding material in this embodiment, is used in a real differential planetary final reduction mechanism to
A continuous driving test was conducted. As shown in Table 1, it was confirmed that the material had excellent wear resistance.
第１表 １０００時間連続運転テストの結果Table 1 Results of 1000 hours continuous operation test
第１図は本発明の一実施例であるスラストリングの斜視
図および
第２図は各材質の摺動材のＰＶ値を示すグラフである。
（
第２図FIG. 1 is a perspective view of a thrust ring according to an embodiment of the present invention, and FIG. 2 is a graph showing the PV value of each sliding material. (Figure 2
Claims (1)
、Ｐが０．０５〜２ｗｔ％、研摩材成分が０．１〜１０
ｗｔ％、残部が主としてＦｅの組成成分を有する鉄系焼
結摺動材。 ２ ＳｉＯ＿２、Ａｌ＿２Ｏ＿３、ムライトを含む金属
酸化物の少くとも一種が前記研摩材成分として用いられ
る請求項１に記載の鉄系焼結摺動材。[Claims] 1 C: 0.2 to 2 wt%, Cu: 0.5 to 20 wt%
, P is 0.05-2wt%, abrasive component is 0.1-10
Iron-based sintered sliding material having a compositional component of wt%, the balance being mainly Fe. 2. The iron-based sintered sliding material according to claim 1, wherein at least one kind of metal oxide including 2 SiO_2, Al_2O_3, and mullite is used as the abrasive component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322211A JP2805923B2 (en) | 1989-12-11 | 1989-12-11 | Iron-based sintered sliding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322211A JP2805923B2 (en) | 1989-12-11 | 1989-12-11 | Iron-based sintered sliding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03183744A true JPH03183744A (en) | 1991-08-09 |
| JP2805923B2 JP2805923B2 (en) | 1998-09-30 |
Family
ID=18141198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1322211A Expired - Lifetime JP2805923B2 (en) | 1989-12-11 | 1989-12-11 | Iron-based sintered sliding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2805923B2 (en) |
Cited By (1)
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556490A (en) * | 1978-06-29 | 1980-01-17 | Bleistahl Gmbh | Material for producing high abrasion resistant products in powder metallurgy |
| JPS55145151A (en) * | 1979-04-26 | 1980-11-12 | Nippon Piston Ring Co Ltd | Wear resistant sintered alloy material for internal combustion engine |
| JPS5770262A (en) * | 1980-10-18 | 1982-04-30 | Tsubakimoto Chain Co | Wear resistant sintered oilless bearing |
| JPS58224138A (en) * | 1982-06-24 | 1983-12-26 | Teikoku Carbon Kogyo Kk | Manufacture of sintered material for collector for traveling in low-speed region |
| JPS62271913A (en) * | 1986-04-11 | 1987-11-26 | Nippon Piston Ring Co Ltd | Builtup cam shaft |
-
1989
- 1989-12-11 JP JP1322211A patent/JP2805923B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556490A (en) * | 1978-06-29 | 1980-01-17 | Bleistahl Gmbh | Material for producing high abrasion resistant products in powder metallurgy |
| JPS55145151A (en) * | 1979-04-26 | 1980-11-12 | Nippon Piston Ring Co Ltd | Wear resistant sintered alloy material for internal combustion engine |
| JPS5770262A (en) * | 1980-10-18 | 1982-04-30 | Tsubakimoto Chain Co | Wear resistant sintered oilless bearing |
| JPS58224138A (en) * | 1982-06-24 | 1983-12-26 | Teikoku Carbon Kogyo Kk | Manufacture of sintered material for collector for traveling in low-speed region |
| JPS62271913A (en) * | 1986-04-11 | 1987-11-26 | Nippon Piston Ring Co Ltd | Builtup cam shaft |
Cited By (4)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2805923B2 (en) | 1998-09-30 |
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