JP2001082485A - Sliding member - Google Patents
Sliding memberInfo
- Publication number
- JP2001082485A JP2001082485A JP25880599A JP25880599A JP2001082485A JP 2001082485 A JP2001082485 A JP 2001082485A JP 25880599 A JP25880599 A JP 25880599A JP 25880599 A JP25880599 A JP 25880599A JP 2001082485 A JP2001082485 A JP 2001082485A
- Authority
- JP
- Japan
- Prior art keywords
- carbide
- sliding
- type
- sliding member
- corrosion resistance
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 230000000737 periodic effect Effects 0.000 claims abstract description 3
- 150000001247 metal acetylides Chemical class 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 15
- 230000003647 oxidation Effects 0.000 abstract description 12
- 238000007254 oxidation reaction Methods 0.000 abstract description 12
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 238000002845 discoloration Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102100033041 Carbonic anhydrase 13 Human genes 0.000 description 1
- 229910021213 Co2C Inorganic materials 0.000 description 1
- 229910021280 Co3C Inorganic materials 0.000 description 1
- 101150000715 DA18 gene Proteins 0.000 description 1
- 229910017356 Fe2C Inorganic materials 0.000 description 1
- 229910017369 Fe3 C Inorganic materials 0.000 description 1
- 101000867860 Homo sapiens Carbonic anhydrase 13 Proteins 0.000 description 1
- 229910005093 Ni3C Inorganic materials 0.000 description 1
- 101100219325 Phaseolus vulgaris BA13 gene Proteins 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000005539 carbonized material Substances 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002490 spark plasma sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
- Ceramic Products (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液体中又は気体中
で使用される摺動部に用いられる摺動部材に関する。特
に、起動時及び停止時に気体中におかれ、定常運転時に
水中またはスラリー中におかれて運転される、立軸、斜
軸、横軸ポンプなどに使用される摺動部材及びそれを利
用した軸受け摺動部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding member used for a sliding portion used in a liquid or a gas. In particular, a sliding member used for a vertical shaft, a diagonal shaft, a horizontal shaft pump, etc., which is placed in a gas at the time of starting and stopping and is placed in water or slurry during a steady operation, and a bearing using the same. It relates to a sliding member.
【０００２】[0002]
【従来の技術】従来の立軸ポンプ、斜軸ポンプ、横軸ポ
ンプの水中軸受けには、ゴム軸受け、鉛青銅軸受けなど
の軸受けなどが使用されていた。しかし、これらのポン
プを起動する場合には、この水中軸受けが気体中におか
れていることが多く、そのままの状態で起動することは
困難であった。即ち、ゴム軸受けも鉛青銅などの金属製
軸受けも水あるいは油で潤滑された状態で使用されるの
であれば極めて安定した摺動特性を示すものであるが、
気体中、即ち無潤滑条件下で使用するとなると、摺動部
から激しく発熱し軸受け部が速やかに破損されるからで
ある。従って、従来の立軸ポンプ、斜軸ポンプ、横軸ポ
ンプでは起動時の無潤滑条件下の運転時に水中軸受けを
保護するため、潤滑油の供給あるいは軸受け部への注水
などが行われている。このような設備をポンプに設置す
るためには、設備費も大きくなり、更にポンプ自体の重
量も大きくなるため、ポンプを支える周囲の設備も大き
くならざるをえない。そこで、特公平６−９７０５３号
公報、特公昭６３−６７０４８号公報、特公昭６３−４
９０８７号公報、特公昭６３−４９０８６号公報に開示
されるように、ＷＣ含有量が７５％以上の超硬合金が用
いられているが、起動時の無潤滑状態での発熱による、
耐酸化性が必ずしも十分ではなく、その結果、摩耗が生
じるという問題がある。また、海水をはじめとした様々
な液体中で使用されるため、耐食性についても必ずしも
満足するものではない。2. Description of the Related Art Rubber bearings, lead-bronze bearings, and other bearings have been used as underwater bearings for conventional vertical shaft pumps, inclined shaft pumps, and horizontal shaft pumps. However, when starting these pumps, the underwater bearing is often placed in gas, and it has been difficult to start the pumps as they are. In other words, rubber bearings and metal bearings such as lead bronze also exhibit extremely stable sliding characteristics if used in a state lubricated with water or oil.
If the bearing is used in a gaseous state, that is, in a non-lubricated condition, the bearing part is rapidly damaged due to severe heat generation from the sliding part. Therefore, in the conventional vertical shaft pump, inclined shaft pump, and horizontal shaft pump, supply of lubricating oil or injection of water into the bearing portion is performed in order to protect the underwater bearing during operation under non-lubricating conditions at the time of startup. In order to install such equipment in the pump, the equipment cost increases and the weight of the pump itself also increases, so that the surrounding equipment supporting the pump must be increased. Accordingly, Japanese Patent Publication No. 6-97053, Japanese Patent Publication No. 63-67048, and Japanese Patent Publication No. 63-4
As disclosed in Japanese Patent No. 9087 and Japanese Patent Publication No. Sho 63-49086, a cemented carbide having a WC content of 75% or more is used.
There is a problem that the oxidation resistance is not always sufficient, and as a result, abrasion occurs. Further, since it is used in various liquids such as seawater, the corrosion resistance is not always satisfactory.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、気体中又は
液体中で使用されるポンプ用軸受けにおいて、双方の使
用条件下において、耐酸化性、耐食性に優れ、安定した
摺動特性をもつ摺動部材及びそれを利用した軸受けに提
供することを課題とする。特に、立軸ポンプ、斜軸ポン
プ、横軸ポンプの水中軸受けとして、ポンプ起動時にお
ける無潤滑条件下でも起動が可能であり、起動時の定常
運転時においても良好な摺動特性を示し、しかも、海水
中の如き良電導液体やスラリー中においても安定した摺
動特性を示す摺動部材及び軸受けを提供することであ
る。SUMMARY OF THE INVENTION The present invention relates to a bearing for a pump used in gas or liquid, which has excellent oxidation resistance and corrosion resistance and has stable sliding characteristics under both use conditions. It is an object to provide a moving member and a bearing using the moving member. In particular, as underwater bearings for vertical pumps, inclined pumps, and horizontal pumps, they can be started even under non-lubricated conditions at the time of starting the pump, and exhibit good sliding characteristics even during steady operation at the time of starting. An object of the present invention is to provide a sliding member and a bearing that exhibit stable sliding characteristics even in a highly conductive liquid or slurry such as seawater.
【０００４】[0004]
【課題を解決するための手段】請求項１の摺動部材は、
液体中又は気体中で使用される組み合わせ摺動部材にお
いて、一方の部材が、WCを４０〜７４ｗｔ％、WC以外の
他の炭化物を１〜６０ｗｔ％、残部を結合相とする超硬
合金部材であり、他方の部材が窒化珪素又は炭化珪素よ
りなるセラミックスであることを特徴とする。請求項２
の摺動部材は、他の炭化物が、ＭＣ型及び／又はM６C型
炭化物であることを特徴とする。請求項３の摺動部材
は、他の炭化物が、周期律表のIVa、Va、VIa族元素又は
Fe族元素の少なくとも一種類以上を含有することを特徴
とする。請求項４の軸受け摺動部材は、一方の部材が回
転軸部材であり、他方の部材が固定部材であることを特
徴とする。The sliding member according to claim 1 is
In the combination sliding member used in liquid or gas, one member is a cemented carbide member having 40 to 74 wt% of WC, 1 to 60 wt% of carbides other than WC, and the balance being a bonding phase. And the other member is a ceramic made of silicon nitride or silicon carbide. Claim 2
Is characterized in that the other carbide is MC type and / or M 6 C type carbide. In the sliding member according to claim 3, the other carbide is selected from the group IVa, Va, and VIa elements of the periodic table.
It is characterized by containing at least one kind of Fe group element. The bearing sliding member according to claim 4 is characterized in that one member is a rotating shaft member and the other member is a fixed member.
【０００５】[0005]
【発明の実施の形態】本発明では、無潤滑条件下の起動
時における、耐酸化性および液体中での耐食性を向上さ
せるために、WC以外の炭化物を利用することで、特性を
向上させることを見いだした。以下、詳細に説明する。
WC含有量が７４wt％より多い場合は、無潤滑条件下の起
動時の発熱による酸化が激しく、摩耗が生じる。WC含有
量が４０wt％より少ない場合は、良好な摺動特性を得る
ことが困難となる。その他の炭化物の含有量が６０wt％
より多い場合は、発熱による焼き付きなどのために、良
好な摺動特性が得られない。その他の炭化物の含有量が
１ｗｔ％より少ない場合、発熱時の耐酸化性の向上に効
果がない。結合相が２５ｗｔ%より多い場合、無潤滑条
件下の摺動時に相手材との焼き付きを生じる。WC以外
に、ＭＣ型および／またはM６C型炭化物を選定した理由
を述べる。ＭＣ型および／またはM６C型炭化物を１％以
上含有することにより、結合相に固溶するＣ量が低下
し、耐食性は改善される。MC型炭化物はWCと同様に炭化
物の中でも高硬度であり、高温での耐酸化性に優れる。
M６C型炭化物は高温での耐酸化性に優れ、結合相との密
着が良いことから、摺動時の粒子の脱落が生じにくい。
具体的には、ＭＣ型炭化物は、ＴｉＣ，ＴａＣ，Ｎｂ
Ｃ，ＶＣ，ＺｒＣ，ＨｆＣなどが利用できる。Ｍ６Ｃ型
炭化物は、Ｗ３Ｃｏ３Ｃ，Ｗ３Ｆｅ３Ｃ，Ｗ３Ｎｉ
３Ｃ，Ｍｏ３Ｃｏ ３Ｃ，Ｍｏ３Ｎｉ３Ｃ，Ｍｏ３Ｆｅ３
Ｃ，Ｗ４Ｃｏ２Ｃ，Ｗ４Ｆｅ２Ｃ，Ｗ４Ｎｉ２Ｃなどが
利用できる。本発明の超硬合金は、WC粉末、その他炭化
物粉末、Co、Ni、Feの結合相粉末などを、アトライタ
ー、振動ボールミルなどを用いて有機溶媒中で混合粉砕
後、真空焼結、不活性ガス焼結、ホットプレス、HIP、
放電プラズマ焼結などの方法により作成される。その他
の炭化物の添加方法として、通常、炭化物自体を添加す
る方法が採られるが、最終形成炭化物と同組成になるよ
うに、炭化物および／または金属元素とグラファイトお
よび／またはカーボンブラックを混合して、添加する方
法も採ることができる。その他添加される炭化物として
は、ＭＣ型やＭ６Ｃ型炭化物以外にＭｏ２Ｃ，Ｃｒ３Ｃ
２などがある。また、ＭＣ型および／またはM６C型炭化
物の一部をM７C３型、M２C型炭化物に置換しても同様の
効果が得られる。DETAILED DESCRIPTION OF THE INVENTION In the present invention, starting under non-lubricated conditions is described.
Resistance to oxidation and corrosion in liquids
Characteristics by utilizing carbides other than WC
I found something to improve. The details will be described below.
If the WC content is more than 74 wt%,
Oxidation due to heat generated during operation is severe, causing wear. Contains WC
When the amount is less than 40% by weight, good sliding characteristics are obtained.
It becomes difficult. Other carbide content is 60wt%
If the number is larger, it is good
Good sliding characteristics cannot be obtained. Other carbide content
If less than 1 wt%, it is effective in improving oxidation resistance during heat generation.
Fruitless. If the binder phase is more than 25 wt%,
At the time of sliding under the condition, seizure with the partner material occurs. Other than WC
In addition, MC type and / or M6Reasons for choosing C-type carbide
State. MC type and / or M61% or less C type carbide
Content lowers the amount of C dissolved in the binder phase
And the corrosion resistance is improved. MC type carbide is carbonized in the same way as WC
It has the highest hardness among materials and has excellent oxidation resistance at high temperatures.
M6C-type carbides have excellent oxidation resistance at high temperatures, and
Because of good adhesion, particles do not easily fall off during sliding.
Specifically, the MC type carbide is TiC, TaC, Nb
C, VC, ZrC, HfC and the like can be used. M6C type
The carbide is W3Co3C, W3Fe3C, W3Ni
3C, Mo3Co 3C, Mo3Ni3C, Mo3Fe3
C, W4Co2C, W4Fe2C, W4Ni2C etc.
Available. The cemented carbide of the present invention can be used for WC powder and other carbonized
Material powder, binder phase powder of Co, Ni, Fe, etc.
-Mixing and grinding in an organic solvent using a vibration ball mill
After, vacuum sintering, inert gas sintering, hot pressing, HIP,
It is produced by a method such as spark plasma sintering. Other
As a method of adding carbide, usually, the carbide itself is added.
But it has the same composition as the final formed carbide.
As described above, carbide and / or metal elements and graphite and
And / or adding carbon black
A law can be adopted. As other added carbide
Is the MC type or M6Mo besides C type carbide2C, Cr3C
2and so on. MC type and / or M type6C type carbonization
M part of the thing7C3Type, M2The same applies to the substitution of C-type carbides.
The effect is obtained.
【０００６】[0006]
【実施例】表１に示す成分の超硬合金を一方の部材とし
て、１７種類のリングを作成した。これを本発明の１〜
１７とした。このリングに窒化珪素又は炭化珪素で作成
したプレートを組み合わせて円筒型摩耗試験機を用いて
摩耗特性を評価した。この結果を表２に示す。また、表
２には摩耗試験時の摺動特性および耐酸化性の評価も示
す。なお、摺動特性は、試験時の摩擦係数を測定した。
耐酸化性の評価は大気中における摩耗試験後のサンプル
（リング）表面の変色および形状変化がない場合を○と
し、変化した場合を×とした。耐食性の評価は、海水中
に７日間浸積した後、表面観察により変色がない場合を
○とし、変色がある場合を×とした。円筒型摩耗試験機
での試験条件は以下のとおりである。 リング回転速度：１m/s、加重：２０kgf/cm２、試験雰
囲気：大気中及び水中、試験時間：５分。EXAMPLE 17 types of rings were prepared using a cemented carbide having the components shown in Table 1 as one member. This is referred to as 1 to 5 of the present invention.
17 was set. The ring was combined with a plate made of silicon nitride or silicon carbide, and the wear characteristics were evaluated using a cylindrical wear tester. Table 2 shows the results. Table 2 also shows the evaluation of sliding characteristics and oxidation resistance during the wear test. In addition, the sliding characteristics measured the friction coefficient at the time of a test.
The oxidation resistance was evaluated as ○ when there was no discoloration or shape change on the surface of the sample (ring) after the abrasion test in the atmosphere, and x when the change occurred. The corrosion resistance was evaluated by ○ when there was no discoloration by surface observation after immersion in seawater for 7 days, and x when there was discoloration. The test conditions in the cylindrical wear tester are as follows. Ring rotation speed: 1 m / s, load: 20 kgf / cm 2 , test atmosphere: in air and water, test time: 5 minutes.
【表１】 [Table 1]
【表２】 （比較例）本発明の範囲をはずれた比較例の説明を表３
及び表４に示す。表３に示す成分の超硬合金を一方の部
材として、７種類のリングを作成した。これを比較例の
３８〜４４及び４８〜５６とした。このリングに表４に
示すプレートを組み合わせて円筒型摩耗試験機を用いて
摩耗特性を評価した。この結果を表４に示す。また、表
４にはその他の組み合わせの例も比較例として示した。[Table 2] (Comparative Example) Table 3 shows a description of a comparative example that is out of the scope of the present invention.
And Table 4 below. Seven types of rings were prepared using a cemented carbide having the components shown in Table 3 as one member. These were designated as 38 to 44 and 48 to 56 of the comparative examples. Abrasion characteristics were evaluated using a cylindrical abrasion tester by combining the ring with the plates shown in Table 4. Table 4 shows the results. Table 4 also shows examples of other combinations as comparative examples.
【表３】 [Table 3]
【表４】 表４において、No.35は摩擦係数が大きく、水中におい
ても良好な摺動特性を得られない。No.36は大気中では
焼き付きを生じ、ステンレス表面が変色した。No.37は
銅合金が酸化され変色した。耐食性も悪く、表面が変色
した。No.38は酸化され、表面が荒れた。No.39は酸化さ
れ、表面が荒れた。耐食性も悪く、変色を生じた。No.4
0は焼き付きを生じ、表面が荒れた。耐食性も悪く、変
色を生じた。No.41は酸化され、表面が荒れた。No.42は
酸化され、表面が荒れた。No.43は焼き付きを生じ、表
面が荒れた。No.44は酸化され、表面が荒れた。No.45は
摩擦係数が大きく、水中においても良好な摺動特性を得
られない。No.46は大気中では焼き付きを生じ、ステン
レス表面が変色した。No.47は銅合金が酸化され変色し
た。耐食性も悪く、表面が変色した。No.48は酸化さ
れ、表面が荒れた。No.49は酸化され、表面が荒れた。
耐食性も悪く、変色を生じた。No.50は焼き付きを生
じ、表面が荒れた。耐食性も悪く、変色を生じた。No.5
1は酸化され、表面が荒れた。No.52は酸化され、表面が
荒れた。No.53は焼き付きを生じ、表面が荒れた。No.54
は酸化され、表面が荒れた。No.55は酸化され、表面が
荒れた。No.56は酸化され、表面が荒れた。耐食性も悪
く、変色を生じた。[Table 4] In Table 4, No. 35 has a large coefficient of friction and cannot obtain good sliding characteristics even in water. In No.36, seizure occurred in the air, and the stainless steel surface was discolored. In No.37, the copper alloy was oxidized and discolored. Poor corrosion resistance and discolored surface. No.38 was oxidized and the surface was roughened. No.39 was oxidized and the surface became rough. Poor corrosion resistance and discoloration occurred. No.4
0 caused seizure and the surface became rough. Poor corrosion resistance and discoloration occurred. No.41 was oxidized and the surface became rough. No.42 was oxidized and the surface became rough. No.43 suffered burn-in and the surface became rough. No.44 was oxidized and the surface became rough. No. 45 has a large coefficient of friction and cannot obtain good sliding characteristics even in water. No. 46 had seizure in the air, and the stainless steel surface was discolored. In No. 47, the copper alloy was oxidized and discolored. Poor corrosion resistance and discolored surface. No.48 was oxidized and the surface was roughened. No.49 was oxidized and the surface became rough.
Poor corrosion resistance and discoloration occurred. No. 50 suffered burn-in and the surface became rough. Poor corrosion resistance and discoloration occurred. No.5
1 was oxidized and the surface was roughened. No. 52 was oxidized and the surface became rough. No.53 had seizure and the surface became rough. No.54
Was oxidized and the surface became rough. No. 55 was oxidized and the surface became rough. No.56 was oxidized and the surface was roughened. Poor corrosion resistance and discoloration occurred.
【０００７】[0007]
【発明の効果】本発明は、気体中及び液体中で使用され
るポンプ用軸受けにおいて、双方の使用条件下におい
て、耐酸化性、耐食性に優れ、安定した摺動特性をもつ
摺動部材及びそれを利用した軸受けであるので、立軸ポ
ンプ、斜軸ポンプ、横軸ポンプの水中軸受けとして、ポ
ンプ起動時における無潤滑条件下でも起動が可能であ
り、起動時の定常運転時においても良好な摺動特性を示
す。また、海水中の如き良電導液体やスラリー中におい
ても安定した摺動特性を示す摺動部材及び軸受けを提供
することができる。The present invention relates to a bearing for a pump used in a gas or a liquid, which has excellent oxidation resistance and corrosion resistance and stable sliding characteristics under both use conditions, and a sliding member having the same. Because it is a bearing that utilizes a pump, it can be started even under non-lubricated conditions at the time of starting the pump as a submersible bearing of a vertical pump, a skew pump, and a horizontal pump, and has good sliding even during steady operation at the time of starting Show characteristics. Further, it is possible to provide a sliding member and a bearing that exhibit stable sliding characteristics even in a highly conductive liquid or slurry such as seawater.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｃ０４Ｂ 35/56 Ｃ２２Ｃ 29/08 Ｃ２２Ｃ 29/08 Ｃ０４Ｂ 35/56 Ｕ Ｆターム(参考） 3H022 CA13 CA46 CA53 DA14 DA18 3J011 AA06 BA01 BA13 DA01 JA02 QA17 SB02 SB20 SD02 SD03 SD10 SE02 4G001 BB21 BB22 BB24 BB25 BB32 BD12 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // C04B 35/56 C22C 29/08 C22C 29/08 C04B 35/56 UF term (Reference) 3H022 CA13 CA46 CA53 DA14 DA18 3J011 AA06 BA01 BA13 DA01 JA02 QA17 SB02 SB20 SD02 SD03 SD10 SE02 4G001 BB21 BB22 BB24 BB25 BB32 BD12
Claims (4)
せ摺動部材において、一方の部材が、WCを４０〜７４ｗ
ｔ％、WC以外の他の炭化物を１〜６０ｗｔ％、残部を結
合相とする超硬合金部材であり、他方の部材が窒化珪素
又は炭化珪素よりなるセラミックスである摺動部材。In a combination sliding member used in a liquid or a gas, one of the members has a WC of 40 to 74 watts.
1% to 60% by weight of carbide other than WC and the balance being a binder phase, and the other member is a ceramic member made of silicon nitride or silicon carbide.
６C型炭化物である請求項１の摺動部材。2. The method according to claim 1, wherein the other carbide is MC type and / or M type.
The sliding member according to claim 1 which is 6 C-type carbides.
a、VIa族元素又はFe族元素の少なくとも一種類以上を含
有する請求項１又は２の摺動部材。3. The method according to claim 1, wherein the other carbide is selected from the group consisting of IVa and V in the periodic table.
3. The sliding member according to claim 1, wherein the sliding member contains at least one of a, VIa group element and Fe group element.
方の部材が固定部材である請求項１〜３のいずれかに記
載の軸受け摺動部材。4. The bearing sliding member according to claim 1, wherein said one member is a rotating shaft member, and the other member is a fixed member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25880599A JP2001082485A (en) | 1999-09-13 | 1999-09-13 | Sliding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25880599A JP2001082485A (en) | 1999-09-13 | 1999-09-13 | Sliding member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001082485A true JP2001082485A (en) | 2001-03-27 |
Family
ID=17325306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25880599A Pending JP2001082485A (en) | 1999-09-13 | 1999-09-13 | Sliding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001082485A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001220605A (en) * | 2000-02-08 | 2001-08-14 | Kubota Corp | Sliding member excellent in wear resistance |
-
1999
- 1999-09-13 JP JP25880599A patent/JP2001082485A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001220605A (en) * | 2000-02-08 | 2001-08-14 | Kubota Corp | Sliding member excellent in wear resistance |
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