JPS6367641B2 - - Google Patents
Info
- Publication number
- JPS6367641B2 JPS6367641B2 JP54017402A JP1740279A JPS6367641B2 JP S6367641 B2 JPS6367641 B2 JP S6367641B2 JP 54017402 A JP54017402 A JP 54017402A JP 1740279 A JP1740279 A JP 1740279A JP S6367641 B2 JPS6367641 B2 JP S6367641B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- temperature
- pressure water
- flow meter
- cobalt
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 30
- 229910017052 cobalt Inorganic materials 0.000 claims description 17
- 239000010941 cobalt Substances 0.000 claims description 17
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 17
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 16
- 229910052759 nickel Inorganic materials 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- -1 phosphor bronze Chemical compound 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Sliding-Contact Bearings (AREA)
Description
本発明は、被測流体として高温高圧水が流され
る配管途中に、流量測定用羽根車を軸受を介して
回転自在に設けた高温高圧水用フローメータに関
する。
尚この明細書において流量とは単位時間当りに
配管を流れる高温高圧水の量のことであり、該単
位時間当りの流量に基づき該流量を時間に関して
積算することにより総流量を求め得る。
タービン式フローメータの羽根車の軸受には、
従来カーボン、リン青銅の如きメタル、超硬合
金、又はテフロンの如き樹脂が用いられている。
しかし乍ら、これら材料からなる軸受及びこの軸
受を用いたフローメータは、例えば温度300℃水
圧88Kg／cm2以下では長期に亘つては安定な機能を
発揮し難い。即ち、高温高圧下においては、カー
ボン軸受は、組織の脱落、メタル軸受は高温酸化
による腐蝕摩耗、そして樹脂軸受は熱劣化による
変質を夫々生起し、いずれも長期使用に耐え得な
い。また、超硬合金からなる軸受は、結合材とし
て作用するコバルト、ニツケル、クロム若しくは
モリブデン等の金属の高温酸化により、タングス
テンカーバイド、チタンカーバイド等の組織の脱
落を生起し、異常摩耗或いはカジリを発生すると
して超硬合金からなる軸受は使用されていないの
が実情である。
本発明は前記諸点に鑑みなされたものであり、
その目的とするところは、高温高圧水下において
も、耐腐蝕性、耐摩耗性、耐熱性及び靭性に優れ
長期の使用に耐え得る高温高圧水用軸受を有して
おり、長期間高温高圧水の流量を確実に測定し得
るフローメータを提供することにある。
本発明によれば、前記目的は、被測流体として
100℃、１気圧以上の高温高圧水が流れる配管途
中に流量測定用羽根車を軸受を介して回転自在に
設けた高温高圧水用フローメータにおいて、前記
軸受は、タングステンカーバイドをニツケル及び
コバルトからなる結合材で結合してなり、ニツケ
ル及びコバルトを夫々３乃至10重量％を含む超硬
合金からなる高温高圧水用フローメータにより達
成される。
次に本発明による好ましい一具体例のフローメ
ータを図面に基づいて説明する。
第１図において、１は、ハブ２と、このハブ２
の外周に複数枚植設された羽根３とからなる羽根
車であり、羽根車１は、ブツシユ４及びジヤーナ
ル５を介して軸６に回転可能に支持されている。
軸６の両端は、支持部材を介してタービンフロー
メータのケーシングに支持されている。ラジアル
方向の軸受の外輪としてのブツシユ４は、ハブ２
の中心中空部においてハブ２に嵌着されており、
羽根車１の回転と共に回転する。一方、ラジアル
方向の軸受の内輪としてのジヤーナル５は、その
中心中空部に軸６が嵌入されて、軸６に固着され
ている。７は、ブツシユ４に対するスラスト軸受
であり、羽根車１の両側において軸６に固着さ
れ、羽根３に対して被測定流体を案内する上流側
コーン部材８及び下流側コーン部材９に設けられ
ている。従つて、羽根車１の回転に際し、ブツシ
ユ４の内周面１０がジヤーナル５の外周面に対し
て摺動し、またブツシユ４の両側面１１が夫々ス
ラスト軸受７の側面１２に対して摺動する。ここ
で、軸受を構成する、ブツシユ４、ジヤーナル５
及びスラスト軸受７の夫々を、結合材としてニツ
ケル及びコバルトを含有するタングステンカーバ
イドからなる超硬合金により形成すると、被測定
流体である水が高温かつ高圧、例えば温度最大
300℃、圧力88Kg／cm2の場合においても、ブツシ
ユ４、ジヤーナル５及びスラスト軸受７には、酸
化、組織の欠落はほとんど生起しないことが判明
した。尚、ニツケル及びコバルトを夫々３ないし
10重量％含ませることにより、より好ましい結果
が得られる。その結果、以上の如き構成を有する
フローメータでは長時間確実に100℃、１気圧以
上の高温高圧水の流量を測定し得る。
これに対してニツケルにより結合したタングス
テンカーバイドからなる軸受を用いた場合、高温
高圧水では軸受の組織の欠落が早期に発生し、ま
たコバルトにより結合したタングステンカーバイ
ドからなる軸受を用いた場合、軸受に腐蝕が生
じ、いずれの場合も極めて軸受の耐久性に劣り、
フローメータを長時間使用し得ないことが判明し
た。尚、クロムカーバイド又はチタンカーバイド
等の超硬合金材料によりブツシユ４等を形成した
場合においても、高温高圧水下では欠落又は腐蝕
を生じ、高温高圧下の長期の使用に耐え得ない。
尚、高温高圧水用のタービン式フローメータの
軸受の内輪のみ、又は外輪若しくはスラスト軸受
のみを前記組成で形式してもよく、加えて、前記
具体例に示すハブを外輪とし、軸を内輪として軸
受を構成してもよい。
次に、第２図を参照しながら、タングステンカ
ーバイドの結合材としてニツケルとコバルトを用
いた超硬合金製軸受によつて得られる効果につい
て述べる。
この効果を確認するための試験方法は下記の通
りである。
第２図に示すようにオートクレーブの蓋体（図
示せず）に気密且つ回転自在に取り付けられた軸
６の一端側にジヤーナル５を嵌着し、このジヤー
ナル５が軸６と一体的に回転し得るようにした。
羽根３の中心部にブツシユ４を固着し、ブツシユ
４を備えた羽根３を、軸６に嵌着されたジヤーナ
ル５に嵌入した後、ジヤーナル５の一端と摺動可
能なようにスラスト軸受７を軸６に固定し、軸６
の他端側に装着されたモータが回転した際に、羽
根３の軸受を構成するブツシユ４とジヤーナル
５、及び、ブツシユ４とスラスト軸受７との間で
それぞれ摺動が生起されるようにした。
同様にして、別の羽根を軸受を構成するブツシ
ユ、ジヤーナル及びスラスト軸受を介して軸６に
取り付け、一回の試験で対照超硬合金で形成され
た対照軸受と試験超硬合金で形成された試験軸受
の双方を同時に試験し得るようにした。
このようにして、軸受を介して軸６に取り付け
られた２個の羽根はオートクレーブ蓋体に取り付
けた回転止め２０により固定し、軸６が回転した
際にこれらの羽根が回転し得ないようにした。
内容積約0.5のオートクレーブ内に0.4の蒸
溜水を入れた後、軸受を介して軸６に取り付けら
れた２個の羽根をオートクレーブ内に挿入して、
これらの軸受と羽根を蒸溜水中に浸漬し、オート
クレーブを90Kg／cm2以上の圧力に耐えるように密
閉した。
オートクレーブの内部空間に設けたヒータによ
り蒸溜水を300℃の温度に加熱し、所定期間この
温度下で軸６を回転させた後、軸６に取り付けた
軸受をオートクレーブ外に取り出し、顕微鏡観察
により軸受の腐蝕状況（摺動面と非摺動面の双
方）と摺動キズを評価した。蒸溜水の温度はオー
トクレーブ蓋体に設けた温度計により、またオー
トクレーブ内圧はオートクレーブ蓋体に取り付け
られた圧力計によつて計測した。
対照超硬合金（WC―5.3Co）で形成した対照
軸受と、試験超硬合金（WC―6Co―7Ni）で形
成した試験軸受について温度300℃、圧力87.6
Kg／cm2の条件下で腐蝕・摺動試験を行つた結果を
下表に示す（超硬合金組成を表す数値は重量％を
示す）。
The present invention relates to a high-temperature, high-pressure water flow meter in which a flow rate measuring impeller is rotatably provided via a bearing in the middle of a pipe through which high-temperature, high-pressure water flows as a fluid to be measured. In this specification, the flow rate refers to the amount of high-temperature, high-pressure water flowing through a pipe per unit time, and the total flow rate can be determined by integrating the flow rate over time based on the flow rate per unit time. The impeller bearing of a turbine flow meter has
Conventionally, carbon, metals such as phosphor bronze, cemented carbide, or resins such as Teflon have been used.
However, bearings made of these materials and flow meters using these bearings are difficult to exhibit stable functionality over a long period of time, for example, at temperatures of 300° C. and water pressures of 88 kg/cm 2 or less. That is, under high temperature and high pressure conditions, carbon bearings suffer from loss of structure, metal bearings undergo corrosive wear due to high temperature oxidation, and resin bearings undergo deterioration due to thermal deterioration, and none of these bearings can withstand long-term use. In addition, in bearings made of cemented carbide, high-temperature oxidation of metals such as cobalt, nickel, chromium, or molybdenum, which act as binders, causes structures such as tungsten carbide and titanium carbide to fall off, resulting in abnormal wear or galling. However, the reality is that bearings made of cemented carbide are not used. The present invention has been made in view of the above points,
The purpose is to provide bearings for high-temperature, high-pressure water that have excellent corrosion resistance, wear resistance, heat resistance, and toughness, and can withstand long-term use even under high-temperature, high-pressure water. An object of the present invention is to provide a flow meter that can reliably measure the flow rate of According to the invention, the purpose is to
A high-temperature, high-pressure water flow meter in which a flow rate measuring impeller is rotatably installed via a bearing in the middle of a pipe through which high-temperature, high-pressure water of 100° C. and 1 atm or more flows, and the bearing is made of tungsten carbide, nickel, and cobalt. This is achieved by a high-temperature, high-pressure water flow meter made of cemented carbide, which is bonded with a binder and contains 3 to 10% by weight of nickel and cobalt, respectively. Next, a preferred example of a flow meter according to the present invention will be explained based on the drawings. In FIG. 1, 1 indicates a hub 2 and this hub 2.
The impeller 1 is rotatably supported by a shaft 6 via a bush 4 and a journal 5.
Both ends of the shaft 6 are supported by the casing of the turbine flow meter via support members. The bush 4 as the outer ring of the radial bearing is connected to the hub 2.
is fitted into the hub 2 in the central hollow part of the
It rotates with the rotation of the impeller 1. On the other hand, the journal 5, which serves as the inner ring of the radial bearing, has a shaft 6 fitted into its central hollow portion and is fixed to the shaft 6. 7 is a thrust bearing for the bush 4, which is fixed to the shaft 6 on both sides of the impeller 1 and provided in the upstream cone member 8 and the downstream cone member 9 that guide the fluid to be measured with respect to the impeller 3. . Therefore, when the impeller 1 rotates, the inner circumferential surface 10 of the bush 4 slides against the outer circumferential surface of the journal 5, and both side surfaces 11 of the bush 4 slide against the respective side surfaces 12 of the thrust bearing 7. do. Here, a bush 4 and a journal 5 that constitute a bearing are shown.
If each of the thrust bearings 7 and 7 is made of a cemented carbide made of tungsten carbide containing nickel and cobalt as a binder, water, which is the fluid to be measured, will be exposed to high temperature and high pressure, for example, at maximum temperature.
It was found that even at 300° C. and a pressure of 88 kg/cm 2 , almost no oxidation or loss of structure occurred in the bush 4, journal 5, and thrust bearing 7. In addition, nickel and cobalt are each 3 or
More preferable results can be obtained by including 10% by weight. As a result, the flow meter having the above configuration can reliably measure the flow rate of high-temperature, high-pressure water at 100° C. and 1 atm or more for a long period of time. On the other hand, when a bearing made of tungsten carbide bonded with nickel is used, the structure of the bearing quickly breaks down in high-temperature, high-pressure water, and when a bearing made of tungsten carbide bonded with cobalt is used, Corrosion occurs, and in either case, the durability of the bearing is extremely poor.
It turned out that the flow meter could not be used for a long time. Even if the bushing 4 is made of a cemented carbide material such as chromium carbide or titanium carbide, it will chip or corrode under high-temperature, high-pressure water, and cannot withstand long-term use under high-temperature and high-pressure conditions. In addition, only the inner ring, or only the outer ring or thrust bearing of the bearing of a turbine-type flow meter for high-temperature, high-pressure water may be formed with the above composition.In addition, the hub shown in the above specific example may be used as the outer ring, and the shaft may be used as the inner ring. A bearing may also be provided. Next, with reference to FIG. 2, the effects obtained by a cemented carbide bearing using nickel and cobalt as binding materials for tungsten carbide will be described. The test method for confirming this effect is as follows. As shown in FIG. 2, a journal 5 is fitted onto one end of a shaft 6 that is airtightly and rotatably attached to the lid of an autoclave (not shown), and this journal 5 rotates integrally with the shaft 6. I tried to get it.
After fixing a bush 4 to the center of the blade 3 and fitting the blade 3 with the bush 4 into a journal 5 fitted to a shaft 6, a thrust bearing 7 is attached so that it can slide on one end of the journal 5. fixed to shaft 6,
When the motor attached to the other end rotates, sliding is caused between the bush 4 and the journal 5, which constitute the bearing of the blade 3, and between the bush 4 and the thrust bearing 7, respectively. . Similarly, another vane was attached to the shaft 6 through the bushing, journal and thrust bearings that constitute the bearing, and in one test a control bearing formed of the control cemented carbide and a test bearing formed of the test cemented carbide were tested. Both test bearings could be tested at the same time. In this way, the two blades attached to the shaft 6 via the bearings are fixed by the rotation stopper 20 attached to the autoclave lid, so that these blades cannot rotate when the shaft 6 rotates. did. After pouring 0.4 volume of distilled water into an autoclave with an internal volume of approximately 0.5, insert the two blades attached to the shaft 6 via bearings into the autoclave.
These bearings and vanes were immersed in distilled water, and the autoclave was sealed to withstand a pressure of 90 kg/cm 2 or more. Distilled water is heated to a temperature of 300°C by a heater installed in the interior space of the autoclave, and after rotating the shaft 6 at this temperature for a predetermined period of time, the bearing attached to the shaft 6 is taken out of the autoclave, and the bearing is determined by microscopic observation. The corrosion status (both sliding and non-sliding surfaces) and sliding scratches were evaluated. The temperature of the distilled water was measured with a thermometer attached to the autoclave lid, and the autoclave internal pressure was measured with a pressure gauge attached to the autoclave lid. Temperature 300°C and pressure 87.6 for control bearing formed from control cemented carbide (WC-5.3Co) and test bearing formed from test cemented carbide (WC-6Co-7Ni).
The table below shows the results of corrosion and sliding tests conducted under Kg/cm 2 conditions (numbers representing cemented carbide compositions indicate weight %).
【表】
試験結果は次の基準に従つて評価された。
◎ 非常に優れる（変化なし）
〇 優れる（少し変化が認められるが実用上問
題なし）
△ やや劣る（条件次第では使用し得る）
× 劣る（使用し得ない）
上記の結果から、タングステンカーバイド
（WC）にニツケル（７重量％）とコバルト（６
重量％）を含ませることにより、この組成を有す
る軸受を温度300℃、圧力88Kg／cm2の条件で使用
した場合でも、タングステンカーバイドに5.3重
量％のコバルトを含む軸受に較べて、耐蝕性、耐
摩耗性においてWC―6Co―7Niの組成を有する
軸受が優れていることが明らかとなつた。
前記の如く、本発明による高温高圧水用フロー
メータでは、軸受が高温高圧水下においても耐腐
蝕性に優れているため長期に亘りその機能を発揮
し得、特にニツケル又はコバルト等、単体の結合
材からなるタングステンカーバイドによるものよ
り、靭性を有しているため、欠落が生じ難く、好
ましい高温高圧水用軸受として機能し、フローメ
ータが長期間確実に動作する。
以上のとおり、本発明高温高圧水用フローメー
タでは、その軸受が、タングステンカーバイドを
ニツケル及びコバルトからなる結合材で結合して
なるものであるために、高温高圧水下において軸
受の耐腐蝕性、耐摩耗性、耐熱性及び靭性が高
い。
すなわち、結合材にニツケルが含まれない場合
には、軸受の耐腐蝕性が低く、結合材が高温高圧
水下で酸化されて靭性等が低下すると共に、タン
グステンカーバイド等組織の脱落がおこり易くな
り、高温高圧水下で軸受が比較的短期間で劣化し
てしまう虞れがあり、一方結合材にコバルトが含
まれない場合には、タングステンカーバイド組織
が強く結合され難く、組織の脱落がおこり易く、
耐摩耗性等が低くなり、軸受が比較的短期間で劣
化してしまう虞れがあるが、本発明高温高圧水用
フローメータの軸受では、結合材がニツケル及び
コバルトからなり、且つニツケル及びコバルトが
それぞれ３ないし10重量％含まれているために前
記耐腐蝕性、耐摩耗性、及び靭性がすべて高く維
持され、長期の使用に耐え得る。その結果フロー
メータが長期間確実に動作する。
すなわち、ニツケルまたはコバルトが３重量％
未満である場合、タングステンカーバイド組織の
脱落がおこり易く、耐摩耗性等が低下する虞れが
あり、一方、ニツケルまたはコバルトが10重量％
を越える場合、軸受としての硬さが低下して耐摩
耗性が低下する虞れがある。[Table] Test results were evaluated according to the following criteria. ◎ Very good (no change) 〇 Excellent (a little change is observed, but there is no practical problem) △ Slightly inferior (can be used depending on the conditions) × Poor (cannot be used) From the above results, tungsten carbide (WC ), nickel (7% by weight) and cobalt (6% by weight)
By including 5.3% by weight of cobalt in tungsten carbide, even when a bearing with this composition is used at a temperature of 300°C and a pressure of 88 kg/ cm2 , it has better corrosion resistance and better corrosion resistance than a bearing containing 5.3% by weight of cobalt in tungsten carbide. It has become clear that bearings with the composition WC-6Co-7Ni are superior in wear resistance. As mentioned above, in the high-temperature, high-pressure water flow meter according to the present invention, the bearing has excellent corrosion resistance even under high-temperature, high-pressure water, so it can perform its function for a long period of time. Since it has more toughness than the material made of tungsten carbide, it is less likely to chip and functions as a preferred bearing for high-temperature, high-pressure water, allowing the flow meter to operate reliably for a long period of time. As described above, in the high-temperature, high-pressure water flow meter of the present invention, since the bearing is made by bonding tungsten carbide with a bonding material made of nickel and cobalt, the corrosion resistance of the bearing under high-temperature and high-pressure water is low. High wear resistance, heat resistance and toughness. In other words, if the bonding material does not contain nickel, the corrosion resistance of the bearing will be low, and the bonding material will be oxidized under high-temperature, high-pressure water, resulting in a decrease in toughness, and the structure such as tungsten carbide will easily fall off. , there is a risk that the bearing will deteriorate in a relatively short period of time under high-temperature, high-pressure water.On the other hand, if the bonding material does not contain cobalt, the tungsten carbide structure will be difficult to bond strongly, and the structure will easily fall off. ,
There is a risk that the wear resistance etc. will decrease and the bearing will deteriorate in a relatively short period of time, but in the bearing of the high temperature and high pressure water flow meter of the present invention, the binding material is made of nickel and cobalt, and the bonding material is made of nickel and cobalt. Since the composition contains 3 to 10% by weight of each, the corrosion resistance, abrasion resistance, and toughness are all maintained at high levels and can withstand long-term use. As a result, the flow meter operates reliably for a long period of time. i.e. 3% by weight of nickel or cobalt
If the tungsten carbide structure is less than 10% by weight, the tungsten carbide structure may easily fall off and wear resistance may deteriorate.
If it exceeds this, there is a risk that the hardness of the bearing will decrease and the wear resistance will decrease.
第１図は本発明高温高圧水用フローメータの好
ましい一具体例のタービン式フローメータの説明
図、第２図は、本発明高温高圧水用フローメータ
に用いられる軸受の腐蝕摺動試験における軸受の
配置を示す図である。
１……羽根車、２……ハブ、３……羽根、４…
…ブツシユ、５……ジヤーナル、６……軸、７…
…スラスト軸受、２０……回転止め。
Fig. 1 is an explanatory diagram of a turbine type flow meter as a preferred example of the flow meter for high temperature and high pressure water of the present invention, and Fig. 2 shows bearings used in the corrosion sliding test of the bearing used in the flow meter for high temperature and high pressure water of the present invention. FIG. 1... Impeller, 2... Hub, 3... Vane, 4...
...Butsuyu, 5...Journal, 6...Axis, 7...
...Thrust bearing, 20... Rotation stopper.
Claims (1)
圧水が流れる配管途中に流量測定用羽根車を軸受
を介して回転自在に設けた高温高圧水用フローメ
ータにおいて、 前記軸受は、タングステンカーバイドをニツケ
ル及びコバルトからなる結合材で結合してなり、
ニツケル及びコバルトを夫々３乃至10重量％を含
む超硬合金からなる高温高圧水用フローメータ。[Scope of Claims] 1. A high-temperature, high-pressure water flow meter in which a flow rate measuring impeller is rotatably provided via a bearing in the middle of a pipe through which high-temperature, high-pressure water of 100° C. and 1 atm or more flows as a fluid to be measured, comprising: The bearing is made by bonding tungsten carbide with a bonding material made of nickel and cobalt.
A high-temperature, high-pressure water flow meter made of cemented carbide containing 3 to 10% by weight of nickel and cobalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1740279A JPS55110754A (en) | 1979-02-16 | 1979-02-16 | High temperature, high pressure water use bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1740279A JPS55110754A (en) | 1979-02-16 | 1979-02-16 | High temperature, high pressure water use bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55110754A JPS55110754A (en) | 1980-08-26 |
| JPS6367641B2 true JPS6367641B2 (en) | 1988-12-27 |
Family
ID=11942993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1740279A Granted JPS55110754A (en) | 1979-02-16 | 1979-02-16 | High temperature, high pressure water use bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55110754A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596422A (en) * | 1982-06-30 | 1984-01-13 | Masuda Seiki Kk | Bearing device |
| DE3483214D1 (en) * | 1983-03-28 | 1990-10-25 | Kennametal Inc | ROLL FOR HOT ROLLING STEEL. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49126707A (en) * | 1973-04-05 | 1974-12-04 | ||
| JPS5130513A (en) * | 1974-09-09 | 1976-03-15 | Tokyo Shibaura Electric Co | CHOKOGOKIN |
| JPS5352214A (en) * | 1976-10-25 | 1978-05-12 | Toshiba Tungaloy Co Ltd | Machine parts consisting of hard porous sintered product and process for production thereof |
-
1979
- 1979-02-16 JP JP1740279A patent/JPS55110754A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49126707A (en) * | 1973-04-05 | 1974-12-04 | ||
| JPS5130513A (en) * | 1974-09-09 | 1976-03-15 | Tokyo Shibaura Electric Co | CHOKOGOKIN |
| JPS5352214A (en) * | 1976-10-25 | 1978-05-12 | Toshiba Tungaloy Co Ltd | Machine parts consisting of hard porous sintered product and process for production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55110754A (en) | 1980-08-26 |
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