JPH0526387Y2 - - Google Patents
Info
- Publication number
- JPH0526387Y2 JPH0526387Y2 JP1985142380U JP14238085U JPH0526387Y2 JP H0526387 Y2 JPH0526387 Y2 JP H0526387Y2 JP 1985142380 U JP1985142380 U JP 1985142380U JP 14238085 U JP14238085 U JP 14238085U JP H0526387 Y2 JPH0526387 Y2 JP H0526387Y2
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- valve
- resistant
- insertion tube
- resistant metal
- 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 - Lifetime
Links
- 230000007797 corrosion Effects 0.000 claims description 37
- 238000005260 corrosion Methods 0.000 claims description 37
- 238000003780 insertion Methods 0.000 claims description 34
- 230000037431 insertion Effects 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000010894 electron beam technology Methods 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000856 hastalloy Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 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
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Valve Housings (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本案は腐蝕性流体管に用いる耐蝕バルブに関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a corrosion-resistant valve for use in corrosive fluid pipes.
［従来の技術］
従来の耐蝕性流体管用バルブは鉄製であるため
腐蝕し易く耐用命数を向上することはきわめて困
難であつた。又耐蝕金属のみで製造する場合は加
工が困難でかつ加工費及び材料費が高価であつ
た。そのため流通管、弁体摺動管などの接液部を
中子としてその外周面に弁函を鋳造したバルブが
開発された（実開昭49−20821号）。しかし接液部
と弁函との境界面には中子とその外周鋳物との関
係に過ぎず、接液部の厚さに相違部があると境界
面の熱容量が相違し、異種金属が部分的にくつつ
き全面が一体に溶着しないため、該境界面に耐蝕
性流体が進入し、該境界面に沿つて腐蝕が進行す
るという問題があるし、特に弁座が腐蝕、摩耗し
易いという重大な欠陥があつた。[Prior Art] Since conventional corrosion-resistant valves for fluid pipes are made of iron, they are easily corroded and it has been extremely difficult to improve their service life. Furthermore, when manufacturing only from corrosion-resistant metals, processing is difficult and processing costs and material costs are high. Therefore, a valve was developed in which the liquid-contact parts such as the flow pipe and the valve body sliding pipe were used as a core, and a valve case was cast on the outer circumferential surface of the core (Utility Model Publication No. 20821/1989). However, the interface between the liquid-contacted part and the valve box is only related to the core and its outer casting, and if there is a difference in the thickness of the liquid-contacted part, the heat capacity of the interface will be different, and dissimilar metals will Since the entire surface is not welded together, there is a problem that corrosion-resistant fluid enters the interface and corrosion progresses along the interface, and the valve seat is particularly susceptible to corrosion and wear. There was a defect.
［考案が解決しようとする課題］
本案は鋼製弁函の内面に耐蝕金属をEBW及び
HIP加工によつてライニングし、弁函とライニン
グとの境界面との全面を一体に溶着することによ
つて境界面への腐蝕性流体の進入がなく耐蝕性に
優れたかつ、弁座の耐蝕性及び耐摩耗性に優れた
バルブを得ることを目的とする。[Problems to be solved by the invention] This invention uses EBW and corrosion-resistant metal on the inner surface of the steel valve case.
Lining is done by HIP processing, and the entire surface of the interface between the valve case and lining is welded together, which prevents corrosive fluids from entering the interface, resulting in excellent corrosion resistance and corrosion resistance of the valve seat. The purpose of this invention is to obtain a valve with excellent durability and wear resistance.
［問題点を解決するための手段］
上記の目的を達成するため本考は
入口側、出口側及び弁体挿入口側に至り、中央
部で連通する複数の嵌合孔を備えた鋼製弁函粗材
と、該各嵌合孔に嵌挿される複数の耐蝕性金属挿
入管とからなり、各耐蝕性金属挿入管が鋼製弁函
粗材の上記嵌合孔に嵌挿された状態で、境界露出
線に沿つて電子ビーム溶接されると共に相互の嵌
合表面間が拡散接合により一体化され、かつ弁体
摺動案内用挿入管が流通用挿入管より厚く形成さ
れてなる耐蝕バルブ
によつて構成される。[Means for solving the problem] In order to achieve the above purpose, this study proposes a steel valve with a plurality of fitting holes extending to the inlet side, outlet side, and valve body insertion port side and communicating in the center. It consists of a box blank material and a plurality of corrosion-resistant metal insertion tubes that are fitted into the respective fitting holes, and when each corrosion-resistant metal insertion tube is fitted into the above-mentioned fitting holes of the steel valve case blank material. , the corrosion-resistant valve is made by electron beam welding along the exposed boundary line, and the mutual fitting surfaces are integrated by diffusion bonding, and the insertion tube for guiding the sliding of the valve body is formed thicker than the insertion tube for flow. It is composed of
［作用］
従つて弁函１の流通用挿入管２の出入口４，５
を配管の端面に衝合して配管に同弁函１を介在さ
せる。弁体摺動案内用挿入管３の内周に形成した
弁座７には弁体摺動案内用挿入管３に摺動自在に
嵌合した耐蝕金属製弁体８が密接して流通用挿入
管２を閉塞し弁体８と弁座７とを開いて流通用挿
入管２を流通状態に開くものである。流通する腐
蝕性流体は耐蝕性金属による流通用挿入管２及び
弁体摺動案内用挿入管３に触れるが腐蝕作用は行
われないため流通用挿入管２の内面及び上記案内
用挿入管３の内面には腐蝕による変質、凹凸、剥
離などを生ずることはない。又上記弁函１と流通
用挿入管２及び弁体摺動案内用挿入管３との境界
面はHIP加工によつて全面が拡散接合によつて一
体に溶着しているため該境界面間に腐蝕性流体が
進入することはないし、弁座７は上記摺動案内用
挿入管３の厚さ以内に形成されているため耐蝕性
及び耐摩耗性に富むものである。[Function] Therefore, the entrances and exits 4 and 5 of the flow insertion tube 2 of the valve case 1
The valve box 1 is interposed in the piping by abutting against the end face of the piping. A valve body 8 made of a corrosion-resistant metal and slidably fitted into the valve body sliding guide insertion tube 3 is inserted into the valve seat 7 formed on the inner circumference of the valve body sliding guide insertion tube 3 in close contact with the valve seat 7 formed on the inner circumference of the valve body sliding guide insertion tube 3. The pipe 2 is closed, the valve body 8 and the valve seat 7 are opened, and the flow insertion pipe 2 is opened to a flow state. The circulating corrosive fluid touches the circulation insertion tube 2 and the valve body sliding guide insertion tube 3 made of corrosion-resistant metal, but no corrosive action takes place. No deterioration, unevenness, or peeling will occur on the inner surface due to corrosion. In addition, the boundary surfaces between the valve case 1, the flow insertion tube 2, and the valve body sliding guide insertion tube 3 are entirely welded together by diffusion bonding through HIP processing, so there is no space between the boundary surfaces. Corrosive fluids will not enter, and since the valve seat 7 is formed within the thickness of the sliding guide insertion tube 3, it is highly corrosion resistant and wear resistant.
［実施例］
第２図に示すように炭素鋼、低合金鋼又はステ
ンレス鋼などによつて鋼製弁函粗材１′を形成し、
流通用嵌合孔２′，２′及びこれと交差する弁体挿
入用嵌合孔３′を穿設し中央部で各嵌合孔２′，
２′，３′を通過させる。この流通用嵌合孔２′，
２′には耐蝕金属製流通用挿入管２，２を挿入嵌
合する（第３図）。そして上記嵌合孔３′の入口か
ら回転切削刃を挿入して上記流通用挿入管２，２
の先端部を上記嵌合孔３′の内周面に沿つて切削
除去した後第４図に示すように耐蝕性金属製の弁
体摺動案内用挿入管３を挿入嵌合する。耐蝕性金
属にはハステロイ（HC−276）、チタン（Ti、純
チタン）、チタンパラジユーム（Ti−pd）などが
用いられる。上記ハステロイを用いる場合弁函１
と上記各管２，２，３との境界露出線ｌに沿つて
真空中で電子ビーム溶接装置（EBW）により同
露出線部を溶着密封して弁函１と上記各管２，
２，３間を真空気密となし（第４図）、その状態
で静水圧加圧炉（HIP）内で1200Kg／cm2、1200℃
に加圧加熱すること（HIP加工）によつて耐蝕性
金属による上記各管２，２，３及び鋼製の上記弁
函１は互に溶着し一体の異種金属複合体となる。
チタン、チタン合金においては鋼とのEBWは不
可能であるから鋼製のチタン被覆材と鋼製弁函と
をEBWでシール溶接することにより弁函と各管
２，２，３間を真空気密にしその後HIP加工す
る。その後上記流通用挿入管２，２の開口部から
回転切削刃を挿入して第５図に示すように各管
２，２，３を連通させる。そして上記流通用挿入
管２，２の入口４及び出口５の外周にある上記弁
函１の外周に鋼製フランジ６，６を螺着するもの
である。又上記案内用挿入管３の厚さは上記流通
用挿入管２の厚さよりも厚く該案内用挿入管３の
下部に形成した弁座７は該案内管３の厚さ以内に
形成するものである。尚図中８で示すものは耐蝕
金属製弁体、９，１０は同弁体８に穿設した大小
流通孔、１１は大流通孔１０の開閉弁、１２は弁
軸、１３は弁軸回動止具、１４はハンドルであ
る。[Example] As shown in FIG. 2, a steel valve case rough material 1' is formed of carbon steel, low alloy steel, stainless steel, etc.
A fitting hole 2', 2' for flow and a fitting hole 3' for inserting a valve body which intersects with the fitting hole 2', 2' are drilled in the center.
2' and 3' are passed. This flow fitting hole 2',
Corrosion-resistant metal flow insertion tubes 2, 2 are inserted and fitted into 2' (Fig. 3). Then, a rotary cutting blade is inserted from the entrance of the fitting hole 3' to
After cutting and removing the tip portion along the inner circumferential surface of the fitting hole 3', a corrosion-resistant metal sliding guide insertion tube 3 is inserted and fitted, as shown in FIG. Hastelloy (HC-276), titanium (Ti, pure titanium), titanium radium (Ti-PD), etc. are used as corrosion-resistant metals. Bento box 1 when using the above Hastelloy
Along the exposed boundary line l between the pipes 2, 2, and 3, the exposed line parts are welded and sealed using an electron beam welding device (EBW) in a vacuum to form the valve box 1 and each of the pipes 2,
The spaces between 2 and 3 are vacuum-tight (Fig. 4), and in that state they are heated at 1200Kg/cm 2 and 1200℃ in a hydrostatic pressure furnace (HIP).
By pressurizing and heating (HIP processing), the above-mentioned respective pipes 2, 2, 3 made of corrosion-resistant metal and the above-mentioned valve case 1 made of steel are welded to each other to form an integrated dissimilar metal composite.
Since EBW with steel is impossible for titanium and titanium alloys, by seal welding the titanium coating material made of steel and the steel valve case using EBW, the space between the valve case and each pipe 2, 2, and 3 is vacuum-tight. and then HIP processing. Thereafter, a rotary cutting blade is inserted through the openings of the flow insertion tubes 2, 2 to connect the tubes 2, 2, 3 as shown in FIG. Then, steel flanges 6, 6 are screwed onto the outer periphery of the valve case 1 located on the outer periphery of the inlet 4 and outlet 5 of the flow insertion pipes 2, 2. Further, the thickness of the guide insertion tube 3 is thicker than the thickness of the flow insertion tube 2, and the valve seat 7 formed at the lower part of the guide insertion tube 3 is formed within the thickness of the guide tube 3. be. In the figure, 8 indicates a valve body made of corrosion-resistant metal, 9 and 10 are large and small communication holes drilled in the same valve body 8, 11 is an on-off valve with a large communication hole 10, 12 is a valve stem, and 13 is a valve stem rotation. The moving stop 14 is a handle.
［考案の効果］
本案は上述のように構成したので耐蝕性流体が
鋼製弁函粗材１′と耐蝕金属製流通用挿入管２や
弁体摺動案内用挿入管３との境界面に進入するこ
とがなく鋼製弁函粗材１′の腐蝕がないし流通用
挿入管２や上記摺動案内用挿入管３は耐蝕金属に
よつて形成されているため変色、凹凸、剥離など
の腐蝕作用がなく耐蝕性流体露出のおそれがな
く、しかも弁座７が耐蝕性、耐摩耗性に富み、著
しく耐久性に優れた耐蝕バルブが容易かつ安価に
得られる。[Effects of the invention] Since the present invention is configured as described above, the corrosion-resistant fluid is applied to the interface between the steel valve case rough material 1' and the corrosion-resistant metal distribution insertion pipe 2 and valve body sliding guide insertion pipe 3. There is no corrosion of the steel valve case rough material 1', and the flow insertion tube 2 and the sliding guide insertion tube 3 are made of corrosion-resistant metal, so they are free from corrosion such as discoloration, unevenness, and peeling. A corrosion-resistant valve having no action and no risk of exposure to a corrosion-resistant fluid, and in which the valve seat 7 is highly corrosion-resistant and wear-resistant, and has excellent durability can be easily obtained at a low cost.
第１図は本案の耐蝕バルブを示す縦断面図、第
２図は流通管挿入前の縦断面図、第３図は挿入後
の縦断面図、第４図は弁体摺動管挿入状態の縦断
面図、第５図は各管連通状態の縦断面図である。
１……弁函、１′……弁函粗材、２′，３′……
嵌合孔、２……流通用挿入管、３……弁体摺動案
内用挿入管、ｌ……境界露出線、７……弁座。
Fig. 1 is a longitudinal sectional view showing the corrosion-resistant valve of the present invention, Fig. 2 is a longitudinal sectional view before the flow pipe is inserted, Fig. 3 is a longitudinal sectional view after insertion, and Fig. 4 is a longitudinal sectional view showing the valve body sliding pipe inserted. A longitudinal sectional view, FIG. 5 is a longitudinal sectional view of each pipe in a communicating state. 1... Valve box, 1'... Valve box rough material, 2', 3'...
Fitting hole, 2... Insertion pipe for circulation, 3... Insertion pipe for sliding guide of valve body, l... Boundary exposure line, 7... Valve seat.
Claims (1)
央部で連通する複数の嵌合孔を備えた鋼製弁函
粗材と、該各嵌合孔に嵌挿される複数の耐蝕性
金属挿入管とからなり、各耐蝕性金属挿入管が
鋼製弁函粗材の上記嵌合孔に嵌挿された状態
で、境界露出線に沿つて電子ビーム溶接される
と共に相互の嵌合表面間が拡散接合により一体
化され、かつ弁体摺動案内用挿入管が流通用挿
入管より厚く形成されてなる耐蝕バルブ。 (2) 耐蝕性金属がTiである実用新案請求の範囲
第１項記載の耐蝕バルブ。 (3) 耐蝕性金属がチタン合金である実用新案登録
請求の範囲第１項記載の耐蝕バルブ。[Scope of Claim for Utility Model Registration] (1) A steel valve case material having a plurality of fitting holes extending to the inlet side, outlet side, and valve body insertion port side and communicating in the center, and each fitting hole. It consists of a plurality of corrosion-resistant metal insertion tubes that are fitted into holes, and with each corrosion-resistant metal insertion tube inserted into the fitting hole of the steel valve case material, an electron beam is applied along the exposed boundary line. A corrosion-resistant valve that is welded and whose mating surfaces are integrated by diffusion bonding, and in which an insertion tube for guiding a valve body sliding is formed thicker than an insertion tube for flow. (2) The corrosion-resistant valve according to claim 1, wherein the corrosion-resistant metal is Ti. (3) The corrosion-resistant valve according to claim 1, wherein the corrosion-resistant metal is a titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985142380U JPH0526387Y2 (en) | 1985-09-17 | 1985-09-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985142380U JPH0526387Y2 (en) | 1985-09-17 | 1985-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6250381U JPS6250381U (en) | 1987-03-28 |
| JPH0526387Y2 true JPH0526387Y2 (en) | 1993-07-02 |
Family
ID=31051062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985142380U Expired - Lifetime JPH0526387Y2 (en) | 1985-09-17 | 1985-09-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526387Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920821U (en) * | 1972-05-24 | 1974-02-21 |
-
1985
- 1985-09-17 JP JP1985142380U patent/JPH0526387Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6250381U (en) | 1987-03-28 |
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