JPH109410A - Gas cock - Google Patents
Gas cockInfo
- Publication number
- JPH109410A JPH109410A JP16798096A JP16798096A JPH109410A JP H109410 A JPH109410 A JP H109410A JP 16798096 A JP16798096 A JP 16798096A JP 16798096 A JP16798096 A JP 16798096A JP H109410 A JPH109410 A JP H109410A
- Authority
- JP
- Japan
- Prior art keywords
- film
- durability
- sliding surface
- gas
- coating
- 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
Landscapes
- Taps Or Cocks (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、摺動耐久性と気密
耐久性を高めたガス栓に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas stopper having improved sliding durability and airtight durability.
【０００２】[0002]
【従来の技術】ガス栓において、摺動耐久性と気密耐久
性を高める手段として、閉子又はガス栓本体の摺動面の
一方にリン酸マンガン系被膜を形成すると共に、この被
膜の表面にスズ被膜を形成したものが公知である（実公
平４−７４０５号公報）。その他、次に示すガス栓が公
知である。2. Description of the Related Art As a means for improving sliding durability and airtight durability of a gas stopper, a manganese phosphate-based coating is formed on one of a sliding surface of a closure and a gas stopper main body, and a surface of the coating is formed on the manganese phosphate-based coating. One having a tin film formed thereon is known (Japanese Utility Model Publication No. 4-7405). In addition, the following gas stoppers are known.
【０００３】ａ．ガス栓本体の栓収容部に栓体を軸線方
向又は回転方向に摺動自在に収容する形式のガス栓に於
いて、前記栓収容部と栓体の何れか一方又は両方の摺動
面に、微粒子が機械的結合状態に集合し且摺動面の母材
層と機械的に結合した微粒子層を形成し、この微粒子層
内の微粒子相互間に微細孔部が形成されてなるガス栓
（特開平７−１９０２０９号公報）。A. In a gas plug of a type in which a plug body is slidably accommodated in the axial direction or the rotational direction in the plug housing portion of the gas plug body, one or both sliding surfaces of the plug housing portion and the plug body, A gas stopper (particularly, a fine particle layer) in which fine particles are aggregated in a mechanically bonded state and form a fine particle layer mechanically bonded to the base material layer on the sliding surface, and fine pores are formed between the fine particles in the fine particle layer. JP-A-7-190209).
【０００４】ｂ．ガス栓本体に栓体を摺動可能に収容し
た形式のガス栓において、ガス栓本体又は栓体を融点又
は沸点の異なる複数の金属からなる合金製とすると共
に、この合金表面を融点又は沸点の低い金属成分が除去
された多孔質表面とし、この多孔質層表面の凹部にシー
ル助剤を侵入保持させたガス栓の摺動面構造（特開平６
−２４１３２７号公報）。B. In a gas plug of a type in which a plug is slidably housed in a gas plug main body, the gas plug main body or the plug is made of an alloy made of a plurality of metals having different melting points or boiling points, and the surface of the alloy has a melting point or a boiling point. A sliding surface structure of a gas stopper having a porous surface from which low metal components have been removed, and a sealing aid penetrating into and holding a recess in the surface of the porous layer (Japanese Patent Laid-Open No.
241327).
【０００５】ｃ．コック本体に栓体を摺動可能に収容
し、コック本体と栓体との摺動面の少なくとも一方に多
孔質層を形成し、前記摺動面にシール用グリスを塗布し
た形式のガスコックにおいて、多孔質層形成部となるコ
ック本体又は栓体を融点の異なる複数の金属からなる合
金製とし、この合金表面に形成される多孔質層を、融点
又は沸点の低い金属成分が除去された構成としたガスコ
ックの摺動面構造（特開平６−２１３３３７号公報）。C. In a gas cock of a type in which a cock body is slidably housed in the cock body, a porous layer is formed on at least one of the sliding surfaces of the cock body and the stopper body, and sealing grease is applied to the sliding face, The cock main body or the plug body serving as the porous layer forming portion is made of an alloy made of a plurality of metals having different melting points, and the porous layer formed on the surface of the alloy has a configuration in which a metal component having a low melting point or a low boiling point is removed. The sliding surface structure of a gas cock (JP-A-6-213337).
【０００６】ｄ．コック摺動面の表面に合成樹脂製の皮
膜を形成する方法において、コック摺動面を予め所定の
形状および寸法の精度に仕上げ加工し、この加工後の表
面に化学蒸着によりパラキシリレン又はその誘導体の被
膜を形成するようにしたコック摺動面の形成方法（特開
平４−２９６２６２号公報）。D. In the method of forming a coating made of synthetic resin on the surface of the cock sliding surface, the cock sliding surface is finished to a predetermined shape and dimensional accuracy in advance, and paraxylylene or a derivative thereof is chemically vapor-deposited on the processed surface. A method for forming a cock sliding surface so as to form a coating (Japanese Patent Laid-Open No. 4-296262).
【０００７】[0007]
【発明が解決しようとする課題】しかし、上記何れの公
知例も摺動耐久性に限界があると共に、特に表面に傷が
着いた場合に、この傷の修復が難しく、気密耐久性に問
題が発生するという欠点がある。本発明の目的は、摺動
耐久性と気密耐久性を高めたガス栓を提供することであ
る。However, all of the above-mentioned known examples have a limit in sliding durability, and particularly when the surface is scratched, it is difficult to repair the scratch and there is a problem in airtight durability. There is a disadvantage that it occurs. An object of the present invention is to provide a gas stopper having improved sliding durability and airtight durability.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に提案するガス栓の構成は次のとおりである。 １．摺動面に多孔質のリン酸マンガン被膜を形成し、更
にこの表面にポリパラキシリレン樹脂被膜を形成して成
るガス栓。 ２．リン酸マンガン被膜及びポリパラキシリレン樹脂被
膜を閉子側又はガス栓本体側又はこの双方の摺動面に形
成して成る前記１記載のガス栓。The configuration of the gas stopper proposed to achieve the above object is as follows. 1. A gas stopper formed by forming a porous manganese phosphate coating on a sliding surface and further forming a polyparaxylylene resin coating on this surface. 2. 2. The gas stopper according to the above item 1, wherein a manganese phosphate coating and a polyparaxylylene resin coating are formed on the sliding surface of the closing member, the gas stopper body, or both.
【０００９】[0009]
【作用】鉄製摺動面の下層に形成された多孔質のリン酸
マンガン被膜の表面には、潤滑性のあるポリパラキシリ
レン樹脂層が形成されているため、上層、下層ともに潤
滑性を有する。この結果、二層により摺動耐久性を保障
する。又、万一表面のポリパラキシリレン樹脂に傷が着
いた場合、下のリン酸マンガン被膜層が気密性を保持す
る。The lubricating polyparaxylylene resin layer is formed on the surface of the porous manganese phosphate coating formed under the iron sliding surface, so that both the upper and lower layers have lubricity. . As a result, sliding durability is ensured by the two layers. In the event that the surface of the polyparaxylylene resin is damaged, the lower manganese phosphate coating layer maintains airtightness.
【００１０】[0010]
【発明の実施の形態】ガス栓側の摺動面（テーパー）又
は閉子側の摺動面（テーパー）又はこの双方には、多孔
質のリン酸マンガン被膜が形成されている。この被膜
は、化成処理により、３〜１０μｍの範囲が好ましく、
５μｍ程度が最良である。又、上記リン酸マンガン被膜
の表面には、ポリパラキシリレン樹脂被膜が形成されて
いる。この被膜は、化学蒸着により、１〜５μｍの範囲
が好ましく、２μｍ程度が最良である。BEST MODE FOR CARRYING OUT THE INVENTION A porous manganese phosphate coating is formed on a sliding surface (taper) on the gas stopper side or a sliding surface (taper) on the closing side. This coating is preferably in a range of 3 to 10 μm by a chemical conversion treatment,
About 5 μm is the best. A polyparaxylylene resin film is formed on the surface of the manganese phosphate film. The thickness of this coating is preferably in the range of 1 to 5 μm by chemical vapor deposition, and the best is about 2 μm.
【００１１】ガス栓の摺動面は、上記多孔質リン酸マン
ガン被膜とポリパラキシリレン樹脂被膜の相乗作用によ
り、摺動性能と気密性能が向上する。On the sliding surface of the gas stopper, sliding performance and airtight performance are improved by the synergistic action of the porous manganese phosphate coating and the polyparaxylylene resin coating.
【００１２】[0012]
【実施例】図１は、ガス栓本体内に組み込まれた閉子
と、この閉子の摺動面に形成された被膜の実施例であっ
て、１はガス栓本体、２はガス流路、３はガス栓本体１
側に形成された閉子組み込み穴、４はこの穴３の摺動
面、５は閉子、６は閉子５の摺動面である。図２は組み
込み穴３の摺動面４と閉子５の摺動面６の拡大図であっ
て、閉子５の摺動面６は機械加工により仕上げられた
後、この表面には多孔質のリン酸マンガン被膜７が化成
処理方法により５μｍの厚さで形成されている。FIG. 1 shows an embodiment of a closure incorporated in a gas stopper body and a coating formed on a sliding surface of the closure, wherein 1 is a gas stopper body and 2 is a gas passage. 3 is the gas stopper body 1
4 is a sliding surface of the hole 3, 5 is a closing surface, and 6 is a sliding surface of the closing device 5. FIG. 2 is an enlarged view of the sliding surface 4 of the mounting hole 3 and the sliding surface 6 of the closing member 5. After the sliding surface 6 of the closing member 5 is finished by machining, the surface is made of a porous material. Is formed in a thickness of 5 μm by a chemical conversion method.
【００１３】８は前記多孔質のリン酸マンガン被膜７の
表面に化学蒸着方法により２μｍの厚さで形成されたポ
リパラキシリレン樹脂被膜である。なお、上記ガス栓本
体１側の摺動面４と閉子５側の摺動面６には、グリース
が塗布されている。Reference numeral 8 denotes a polyparaxylylene resin film formed on the surface of the porous manganese phosphate film 7 by a chemical vapor deposition method to a thickness of 2 μm. Grease is applied to the sliding surface 4 on the gas plug main body 1 side and the sliding surface 6 on the closing element 5 side.
【表１】は、上記実施例に係るガス栓をＮｏ．１、Ｎ
ｏ．２、Ｎｏ．３の３種類用意し、この耐久試験の結果
を示すものである。Table 1 shows that the gas stoppers according to the above-described embodiments are No. 1, N
o. 2, No. 3 are prepared to show the results of the durability test.
【００１４】[0014]
【表１】 [Table 1]
【００１５】上記試験結果から、前記した公知例の場
合、５，０００〜６，０００回を超えると摺動性（トル
ク）が大きくなり、気密性にも問題が生じるようになる
が、本発明のガス栓においては、１０，０００回の試験
でもその摺動性と気密性に変化は認められない。From the above test results, in the case of the above-mentioned known example, when the number of times exceeds 5,000 to 6,000 times, the slidability (torque) increases, and a problem also occurs in the airtightness. No change was observed in the slidability and airtightness of the gas stopper of even 10,000 tests.
【００１６】[0016]
【発明の効果】本発明は以上のように、リン酸マンガン
被膜により形成された表面の凹凸上に形成されたポリパ
ラキシリレン樹脂被膜が摺動性能を向上し、ポリパラキ
シリレン樹脂被膜の表面に傷が入った場合、下層のリン
酸マンガン被膜が摺動性能を維持する。この結果、開閉
１０，０００回の耐久試験後でも試験前と回転トルクに
大きな差がなく、気密性も維持される。As described above, according to the present invention, the polyparaxylylene resin coating formed on the surface irregularities formed by the manganese phosphate coating improves the sliding performance, and the polyparaxylylene resin coating is If the surface is damaged, the lower manganese phosphate coating maintains the sliding performance. As a result, even after the endurance test of 10,000 times of opening and closing, there is no large difference in the rotational torque from that before the test, and the airtightness is maintained.
【図１】本発明を実施したガス栓の説明図。FIG. 1 is an explanatory view of a gas stopper embodying the present invention.
【図２】摺動面の説明図。FIG. 2 is an explanatory view of a sliding surface.
１ ガス栓本体 ２ ガス流路 ３ 閉子込み込み穴 ４ 摺動面 ５ 閉子 ６ 摺動面 ７ 多孔質のリン酸マンガン被膜 ８ ポリパラキシリレン樹脂被膜 DESCRIPTION OF SYMBOLS 1 Gas stopper body 2 Gas flow path 3 Cloth insertion hole 4 Sliding surface 5 Closure 6 Sliding surface 7 Porous manganese phosphate coating 8 Polyparaxylylene resin coating
Claims (2)
形成し、更にこの表面にポリパラキシリレン樹脂被膜を
形成して成るガス栓。1. A gas stopper comprising a sliding surface formed with a porous manganese phosphate film, and a polyparaxylylene resin film formed on the surface.
レン樹脂被膜を閉子側又はガス栓本体側又はこの双方の
摺動面に形成して成る請求項１記載のガス栓。2. The gas stopper according to claim 1, wherein a manganese phosphate coating and a polyparaxylylene resin coating are formed on the sliding surface of the closing member, the gas stopper body, or both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16798096A JPH109410A (en) | 1996-06-27 | 1996-06-27 | Gas cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16798096A JPH109410A (en) | 1996-06-27 | 1996-06-27 | Gas cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH109410A true JPH109410A (en) | 1998-01-13 |
Family
ID=15859588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16798096A Pending JPH109410A (en) | 1996-06-27 | 1996-06-27 | Gas cock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH109410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133422A (en) * | 2007-11-30 | 2009-06-18 | Fujii Gokin Seisakusho Co Ltd | Gas plug and method of manufacturing plug for gas plug |
| JP2011163358A (en) * | 2010-02-04 | 2011-08-25 | Fujii Gokin Seisakusho Co Ltd | Overflow preventing valve |
-
1996
- 1996-06-27 JP JP16798096A patent/JPH109410A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133422A (en) * | 2007-11-30 | 2009-06-18 | Fujii Gokin Seisakusho Co Ltd | Gas plug and method of manufacturing plug for gas plug |
| JP2011163358A (en) * | 2010-02-04 | 2011-08-25 | Fujii Gokin Seisakusho Co Ltd | Overflow preventing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20050215 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20050331 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
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| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050804 |