JPH1082471A - Gas cock sliding surface forming method - Google Patents
Gas cock sliding surface forming methodInfo
- Publication number
- JPH1082471A JPH1082471A JP25320896A JP25320896A JPH1082471A JP H1082471 A JPH1082471 A JP H1082471A JP 25320896 A JP25320896 A JP 25320896A JP 25320896 A JP25320896 A JP 25320896A JP H1082471 A JPH1082471 A JP H1082471A
- Authority
- JP
- Japan
- Prior art keywords
- sliding surface
- synthetic resin
- accuracy
- forming
- sliding
- 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】この発明はガス栓の摺動面の
形成方法、特に、前記摺動面となる母材表面に合成樹脂
製被膜を被覆形成した摺動面の形成方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a sliding surface of a gas stopper, and more particularly to a method for forming a sliding surface in which a base material serving as the sliding surface is coated with a synthetic resin film. .
【０００２】[0002]
【従来の技術】ガス栓の摺動面における気密性能、潤滑
性能を向上させるために、前記摺動面の母材表面（通常
は、栓の摺動面）にコート被膜を形成する方法が、特公
昭５９−７５２号、実公昭６０−５２９号等として提案
されている。これら従来の方法は、栓の摺動面にのみ前
記コート被膜を形成するもので、主として、上記した摺
動面相互の気密性能や潤滑性能に重点が置かれている。
従って、前記コート被膜の形成部と非形成部との境界か
らの前記コート被膜の剥離や、前記非形成部に生じたさ
びが前記コート被膜と母材表面との間に成長侵入したり
する不都合がある。2. Description of the Related Art In order to improve the airtightness and lubrication performance of a sliding surface of a gas stopper, a method of forming a coating film on the surface of the base material of the sliding surface (usually, the sliding surface of the stopper) is described. Japanese Patent Publication No. 59-752 and Japanese Utility Model Publication No. 60-529 have been proposed. In these conventional methods, the coating film is formed only on the sliding surface of the stopper, and the emphasis is mainly placed on the airtightness and lubrication performance of the sliding surfaces.
Therefore, there is an inconvenience that the coat film is peeled from the boundary between the formed portion and the non-formed portion of the coat film, and that rust generated in the non-formed portion grows and invades between the coat film and the base material surface. There is.
【０００３】かかる不都合を解決する為に、特開平４−
１６５１７１号が提案されており、このものでは、栓全
体にメッキ被膜を形成し、摺動面と一致する摺動面相当
部の前記メッキ被膜を切削により削り落とした後、さら
に仕上げ加工し、このように仕上げられた前記摺動面相
当部に樹脂コート被膜を形成し、このようにして形成さ
れた前記樹脂コート被膜の表面を、最終の摺動面とする
ために所定の精度に仕上げ切削している。In order to solve such a problem, Japanese Patent Laid-Open No.
No. 165171 has been proposed, in which a plating film is formed on the entire stopper, and the plating film on a portion corresponding to the sliding surface corresponding to the sliding surface is cut off by cutting, followed by finishing. A resin coat film is formed on the sliding surface equivalent portion thus finished, and the surface of the resin coat film formed in this manner is finish-cut to a predetermined accuracy so as to be a final sliding surface. ing.
【０００４】この先行技術のものでは、前記栓の表面全
体が、メッキ被膜によって被覆された表面と樹脂コート
被膜によって被覆された摺動面とからなることから、上
記した防錆上の問題が解消される。ところが、この先行
技術では、最終の摺動面に仕上げるまでに多くの工程が
必要である。また、栓表面に部分的に樹脂コート被膜を
形成するものであるから、部分的な吹きつけ、ハケ塗り
等で前記樹脂コート被膜を形成することとなり、作業性
が悪い。In this prior art, the entire surface of the plug is composed of a surface covered with a plating film and a sliding surface covered with a resin coating film, so that the above-mentioned problem of rust prevention is solved. Is done. However, in this prior art, many steps are required until a final sliding surface is finished. In addition, since a resin coat film is formed partially on the stopper surface, the resin coat film is formed by partial spraying, brush painting, or the like, and workability is poor.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、かかる点に
鑑みてなされたものであり、『金属製ガス栓の摺動面と
なる摺動面相当部の少なくとも一方に合成樹脂被膜を形
成する方法』において、作業性を向上させると共に、合
成樹脂被膜形成後の部材の防錆を確実ならしめることを
その課題とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made in view of the problem that "a synthetic resin film is formed on at least one of the sliding surfaces corresponding to the sliding surface of a metal gas stopper. Method], it is an object of the present invention to improve workability and ensure rust prevention of a member after forming a synthetic resin film.
【０００６】[0006]
【課題を解決するための手段】前述した課題を解決する
ために講じた請求項１によって特定される発明の解決手
段は『前記摺動面相当部の表面を所定の精度に仕上げる
第１の工程と、前記仕上げが施された前記摺動面相当部
を具備する部材の全体表面に所定の膜厚の合成樹脂被膜
を被覆形成する第２の工程とからなり、前記前記第１の
工程における摺動面相当部の仕上げ精度は、前記第２の
工程によって形成される前記合成樹脂被膜表面が摺動性
能に適する精度となるように前記合成樹脂被膜を形成す
ることによる精度低下を吸収できる程度の高い精度に仕
上げられている』ことを特徴とする。Means for Solving the Problems To solve the above-mentioned problems, the solution of the invention specified by claim 1 is "a first step of finishing the surface of the portion corresponding to the sliding surface to a predetermined accuracy." And a second step of forming a synthetic resin film having a predetermined thickness on the entire surface of the member having the sliding surface-equivalent portion provided with the finish, wherein the sliding step in the first step is performed. The finishing accuracy of the part corresponding to the moving surface is of such a degree that the synthetic resin film formed in the second step can absorb a decrease in accuracy due to the formation of the synthetic resin film such that the surface has a precision suitable for sliding performance. Finished with high precision. "
【０００７】上記解決手段はつぎのように作用する。こ
の方法は、前記摺動面相当部を設定精度に仕上げる第１
の工程と、前記精度に仕上げられた前記摺動面相当部を
具備する部材の表面全体に設定厚さの膜厚の合成樹脂被
膜を被覆形成する第２の工程とからなる。しかも、前記
摺動面相当部の仕上げ精度は、前記第２の工程によって
形成される前記合成樹脂被膜表面が摺動性能に適する精
度となるように、「前記合成樹脂被膜を形成することに
よる精度低下を吸収できる程度の高い精度」に仕上げら
れているから、この第２の工程後の前記摺動面相当部に
被覆された合成樹脂被膜表面がそのまま摺動面となる。The above solution works as follows. According to this method, the first part for finishing the portion corresponding to the sliding surface to the set accuracy is provided.
And a second step of forming a synthetic resin film having a set thickness on the entire surface of the member having the sliding surface equivalent portion finished with the accuracy. In addition, the finishing accuracy of the portion corresponding to the sliding surface is determined so that the surface of the synthetic resin film formed in the second step has an accuracy suitable for sliding performance. Since the surface is finished with “high accuracy enough to absorb the drop”, the surface of the synthetic resin film coated on the portion corresponding to the sliding surface after the second step becomes the sliding surface as it is.
【０００８】従って、前記被膜形成のための被覆工程の
後に切削加工等の最終仕上げ加工が不要となる。なお、
前記第１の工程には、請求項２によって特定される発明
のように、『切削加工により前記摺動面相当部が所定の
精度に仕上げられる工程と、その後に脱亜鉛処理または
化学エッチング処理等により凹凸化処理を施す工程とを
含む』ものであってもよい。この場合には、第２の工程
に於いて形成される合成樹脂被膜と摺動面相当部との機
械的結合が十分なものとなる。前記凹凸化処理は、前記
摺動面相当部にのみ施される場合と、第２の工程にて合
成樹脂被膜を被覆形成する部材の表面全体に施される場
合を含む。Therefore, a final finishing process such as a cutting process is not required after the coating process for forming the coating. In addition,
In the first step, as in the invention specified by claim 2, "a step in which the portion corresponding to the sliding surface is finished to a predetermined accuracy by cutting, followed by a dezincing treatment or a chemical etching treatment or the like" And a step of performing a concavo-convex treatment on the substrate. In this case, the mechanical coupling between the synthetic resin film formed in the second step and the portion corresponding to the sliding surface is sufficient. The roughening treatment includes a case where the unevenness treatment is performed only on the portion corresponding to the sliding surface and a case where the unevenness treatment is performed on the entire surface of the member on which the synthetic resin film is formed in the second step.
【０００９】請求項３によって特定される発明は、前項
によって特定される発明において、『前記摺動面相当部
を具備する部材を、ガス栓の栓とした』ものであり、こ
のものでは、合成樹脂被膜を形成するための部材が前記
栓の相手方となるガス栓本体等に比べて大幅に小型にな
るから、合成樹脂被膜を形成する為の前記被覆工程の作
業性が良い。The invention specified by claim 3 is the invention specified by the preceding claim, wherein the member provided with the sliding surface equivalent portion is a gas plug. Since the member for forming the resin coating is significantly smaller than the gas stopper body or the like which is the other end of the plug, the workability of the coating step for forming the synthetic resin coating is good.
【００１０】請求項４によって特定される発明は、栓の
摺動面の形成方法であって、『前記栓は鋳鉄製とし、前
記摺動面相当部の表面を切削により所定の精度に仕上げ
る第１の工程と、前記仕上げが施された前記摺動面相当
部を具備する部材の全体表面に所定の膜厚の合成樹脂被
膜を被覆形成する第２の工程とからなり、前記前記第１
の工程における摺動面相当部の仕上げ精度は、前記第２
の工程によって形成される前記合成樹脂被膜表面が摺動
性能に適する精度となるように前記合成樹脂被膜を形成
することによる精度低下を吸収できる程度の高い精度に
仕上げられている』ことである。The invention specified by claim 4 is a method of forming a sliding surface of a plug, wherein the plug is made of cast iron and the surface corresponding to the sliding surface is finished to a predetermined accuracy by cutting. A step of forming a synthetic resin film having a predetermined thickness on the entire surface of the member having the sliding surface equivalent part having been subjected to the finish, and
The finishing accuracy of the portion corresponding to the sliding surface in the step of
Is performed so as to be able to absorb a decrease in accuracy due to the formation of the synthetic resin film so that the surface of the synthetic resin film formed by the step (2) has an accuracy suitable for sliding performance.
【００１１】このものによれば、栓が鋳鉄製であるか
ら、その摺動面相当部が第１の工程によって所定の精度
に仕上げ切削されたとき、その表面には微細な巣穴が随
所にあいている。この表面に第２の工程によって合成樹
脂被膜が形成されると、請求項２によって特定される発
明と同様にして、栓の摺動面と前記合成樹脂被膜との密
着度が向上する。なお、栓の軸線方向の表面全体（内外
の表面）が切削によって仕上げられている場合には、栓
の前記表面の全域において合成樹脂被膜との結合強度が
向上する。According to this method, since the stopper is made of cast iron, when the portion corresponding to the sliding surface is finish-cut to a predetermined precision in the first step, fine burrows are formed on the surface. Open. When the synthetic resin film is formed on this surface by the second step, the degree of adhesion between the sliding surface of the plug and the synthetic resin film is improved in the same manner as the invention specified by claim 2. When the entire surface (inner and outer surfaces) in the axial direction of the plug is finished by cutting, the bonding strength with the synthetic resin coating is improved over the entire surface of the plug.
【００１２】前記請求項１〜４によって特定される発明
に於いて、合成樹脂被膜を被覆形成するための前記第２
の工程としては、請求項５にて特定するように、真空槽
内における蒸着または重合による被覆工程である場合を
含む。なお、合成樹脂被膜を被覆形成するための前記第
２の工程は、好ましくは、３００℃以下の真空槽内で行
われる真空蒸着による合成樹脂被膜形成のための前記第
２の工程とする。これによれば、第２の工程後の摺動面
の精度低下が殆ど生じない。[0012] In the invention specified by the first to fourth aspects, the second for forming a synthetic resin film.
As described in claim 5, the step includes a step of coating by vapor deposition or polymerization in a vacuum chamber. The second step for forming a synthetic resin film is preferably the second step for forming a synthetic resin film by vacuum evaporation performed in a vacuum chamber at 300 ° C. or lower. According to this, the precision of the sliding surface after the second step hardly decreases.
【００１３】また、請求項６に特定するように、請求項
３〜請求項５によって特定される発明に於いて『前記第
２の工程前の栓の精度は、真円度を０．０５μｍ〜５μ
ｍ、真直度を０．０５μｍ〜５μｍ、表面粗さを０．０
５μｍ〜５μｍとした』ものでは、良好な摺動面が形成
される。さらに、請求項７によって特定されるように、
請求項３〜請求項５によって特定される発明に於いて
『前記第２の工程後の栓の精度は、真円度を０．０５μ
ｍ〜５μｍ、真直度を０．０５μｍ〜５μｍ、表面粗さ
を０．０５μｍ〜５μｍとした』ものでは、前記効果が
一層向上する。According to a sixth aspect of the present invention, in the invention specified by the third to fifth aspects, the accuracy of the plug before the second step is such that the roundness is 0.05 μm or less. 5μ
m, straightness of 0.05 μm to 5 μm, surface roughness of 0.0
5 μm to 5 μm ”, a good sliding surface is formed. Further, as specified by claim 7,
In the invention specified by claims 3 to 5, "the accuracy of the stopper after the second step is 0.05 μm in roundness.
m to 5 μm, the straightness is 0.05 μm to 5 μm, and the surface roughness is 0.05 μm to 5 μm ”.
【００１４】[0014]
【発明の効果】請求項１によって特定される発明によれ
ば、合成樹脂被膜形成のための被覆工程の後に切削加工
等の最終仕上げ加工が不要となるから、生産性が向上す
る。請求項３によって特定される発明によれば、部材が
小さな栓についてのみ前記被覆工程が実行されるから、
栓本体側に前記被覆工程を実行する場合に比べて、一層
作業性が良い。According to the invention specified by claim 1, the final finishing such as cutting after the coating step for forming the synthetic resin film is not required, so that the productivity is improved. According to the invention specified by claim 3, since the covering step is performed only for a stopper whose member is small,
Workability is better than in the case where the coating step is performed on the stopper body side.
【００１５】請求項２〜４によって特定される発明によ
れば、栓表面と合成樹脂被膜との結合強度が大きくな
り、前記合成樹脂被膜がはがれにくい。請求項４によっ
て特定される発明は、凹凸化処理を施さないでも前記請
求項３によって特定される発明と同様の効果を有するも
のとなる。請求項５によって特定される発明によれば、
合成樹脂被膜の形成工程において摺動面の精度低下が殆
ど生じない。According to the inventions specified in claims 2 to 4, the bonding strength between the surface of the stopper and the synthetic resin film is increased, and the synthetic resin film is not easily peeled off. The invention specified by claim 4 has the same effect as the invention specified by claim 3 without performing the unevenness treatment. According to the invention specified by claim 5,
In the process of forming the synthetic resin film, the precision of the sliding surface hardly decreases.
【００１６】請求項６によって特定される発明によれ
ば、前記被覆工程終了後の摺動面の精度低下が生じにく
いから、作業性が良くしかも摺動性能の良好な栓が得ら
れる。請求項７によって特定される発明によれば、一層
良好な摺動面が形成される。According to the invention as defined in claim 6, since the precision of the sliding surface after the coating step is hardly reduced, a plug with good workability and good sliding performance can be obtained. According to the invention specified by claim 7, a better sliding surface is formed.
【００１７】[0017]
【発明の実施の形態】以下に、本発明の方法を実施する
実施の形態について説明する。この例では、ガス栓の本
体(1) に直線状のガス回路(2) を備えた形式であり、前
記ガス回路(2) に直交するように栓(3) が挿入された構
成であり、前記栓(3)は、円錐台形状の栓体(31)にこれ
と同軸の操作軸部(32)が連設された構成である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment for carrying out the method of the present invention will be described below. In this example, the gas plug main body (1) is provided with a linear gas circuit (2), and the plug (3) is inserted perpendicular to the gas circuit (2). The stopper (3) has a configuration in which an operating shaft (32) coaxial with the stopper (31) having a truncated cone shape is connected to the stopper (31).
【００１８】前記栓体(31)には前記操作軸部(32)に対し
て直交する姿勢で通過孔(33)が貫通形成され、前記操作
軸部(32)を９０度回動させることにより、前記ガス回路
(2)が開閉されるものである。前記(3) の表面全体に合
成樹脂被膜(H) が形成されており、前記本体(1) には、
入口(21)から出口(22)に達するガス回路(2) の中程に前
記栓体(31)を収容する為の逆円錐台形状の栓収容室(11)
が形成されて、その上端開放部に、前記栓(3)の操作軸
部(32)が挿入されている。A through hole (33) is formed through the plug (31) in a posture orthogonal to the operation shaft (32), and the operation shaft (32) is turned by 90 degrees. , The gas circuit
(2) is opened and closed. A synthetic resin film (H) is formed on the entire surface of (3), and the main body (1) has
An inverted truncated cone-shaped plug storage chamber (11) for storing the plug (31) in the middle of the gas circuit (2) reaching the outlet (22) from the inlet (21).
The operating shaft (32) of the plug (3) is inserted into the upper end opening.
【００１９】前記栓(3) は黄銅製で切削により所定の精
度に仕上げられた後、化学エッチング、加熱真空槽での
脱亜鉛処理、または、ショットブラスト等により、栓
(3) の表面全体に凹凸を付けるようにしている。この処
理が既述の凹凸化処理である。この凹凸化処理は前記栓
体(31)にのみ施してもよい。凹凸化処理が栓(3) の表面
全体に施される場合には、栓(3) の表面全体で合成樹脂
被膜との密着度が向上する利点がある。The plug (3) is made of brass, finished to a predetermined precision by cutting, and then subjected to chemical etching, dezincing treatment in a heating vacuum tank, or shot blasting or the like.
(3) The entire surface is made uneven. This processing is the above-mentioned unevenness processing. This roughening treatment may be performed only on the plug (31). When the roughening treatment is performed on the entire surface of the plug (3), there is an advantage that the degree of adhesion to the synthetic resin film on the entire surface of the plug (3) is improved.
【００２０】この例では、栓体(31)の平均径を約19.00
ｍｍ，前記栓体(31)の軸線方向長さ20.00 ｍｍにしたも
のについて、前記栓体(31)の精度を次の表１のように設
定した栓に本発明の方法を実施した。In this example, the average diameter of the plug (31) is set to about 19.00.
mm, and the length of the stopper (31) in the axial direction was 20.00 mm, and the method of the present invention was applied to a stopper in which the accuracy of the stopper (31) was set as shown in Table 1 below.
【００２１】[0021]
【表１】 [Table 1]
【００２２】この表において、表面粗さの単位（Ｒｚ）
は、ＪｉｓＢ０６０１に規定される表面粗さの表示単位
を示す。以下の表においても、この点は同じである。上
記精度の栓体(31)の摺動面を脱亜鉛処理によってを凹凸
表面（多孔質表面）に仕上げた後の精度は次の表２の通
りであった。この実施の形態では、前記切削加工の工程
と脱亜鉛処理の工程とが上記第１の工程になる。In this table, units of surface roughness (Rz)
Indicates a display unit of surface roughness specified in JisB0601. This is the same in the following table. The accuracy after finishing the sliding surface of the plug (31) with the above accuracy to a concave and convex surface (porous surface) by dezincing treatment was as shown in Table 2 below. In this embodiment, the cutting step and the dezincing step are the first steps.
【００２３】[0023]
【表２】 [Table 2]
【００２４】前記脱亜鉛処理終了後の栓体(31)にコーテ
ィング処理を施して、この栓体(31)の全表面を合成樹脂
層（ポリパラキシリレンまたはポリイミド、膜厚４μｍ
の層）によって被覆した後の精度は、次の表３の通りで
あった。After completion of the dezincing treatment, the plug (31) is subjected to a coating treatment so that the entire surface of the plug (31) is made of a synthetic resin layer (polyparaxylylene or polyimide, 4 μm thick).
Table 3 below shows the accuracy after the coating with the layer (3).
【００２５】[0025]
【表３】 [Table 3]
【００２６】次の実施の形態は、前記コーティング処理
を施す前に化学エッチング処理により栓体(31)の表面を
凹凸表面とするものの場合であり、この場合の切削加工
後の精度は次の表４の通りである。In the next embodiment, the surface of the plug (31) is made to have an uneven surface by a chemical etching process before the coating process, and the accuracy after cutting in this case is shown in the following table. 4
【００２７】[0027]
【表４】 [Table 4]
【００２８】この実施例の栓体(31)に化学エッチング処
理を施した後の各精度は次の表５の通りとなった。Table 5 below shows the respective accuracies after the chemical etching treatment was applied to the plug (31) of this embodiment.
【００２９】[0029]
【表５】 [Table 5]
【００３０】この化学エッチング処理後の栓体(31)の全
表面にコーティング処理を施して膜厚４μｍ程度の合成
樹脂層（ポリパラキシリレンまたはポリイミドの層）を
形成すると、各精度は次の表の通りとなった。When the entire surface of the plug (31) after the chemical etching treatment is subjected to a coating treatment to form a synthetic resin layer (polyparaxylylene or polyimide layer) having a thickness of about 4 μm, each precision is as follows. It is as shown in the table.
【００３１】[0031]
【表６】 [Table 6]
【００３２】以上の各実施例のものについて、３０，０
００回の耐久試験をした結果、何れも、ガス栓には耐久
試験後に漏れが生じなかった。なお、真円度及び真直度
は、好ましくは、０．０５μｍ〜５μｍ程度が望まし
く。真円度及び真直度が前記精度よりも低下すると、
５，０００回〜１０，０００回程度の耐久試験後に前記
漏れが生じた。For each of the above embodiments, 30,0
As a result of the durability test performed 00 times, no leakage occurred in any of the gas stoppers after the durability test. The roundness and straightness are preferably about 0.05 μm to 5 μm. When the roundness and straightness are lower than the accuracy,
The leakage occurred after about 5,000 to 10,000 durability tests.
【００３３】上記何れの実施例も、栓(3) に本発明を実
施したが、本体(1) に本発明を実施してもよい。また、
前記栓(3) は、黄銅製の栓としてあるが、この栓(3) を
鋳鉄製とすることも可能であり、その場合には、上記実
施の形態の凹凸化処理が不要となる。鋳鉄の断面には微
細な巣穴が随所にあることから、鋳鉄製の栓を切削によ
って上記実施例と同様の精度に仕上げた後、上記した各
例と同様な方法によって合成樹脂被膜を形成する構成と
した場合、合成樹脂被膜と栓の表面との結合強度が、前
記凹凸化処理を施したものと同等となる。In each of the above embodiments, the present invention is applied to the stopper (3), but the present invention may be applied to the main body (1). Also,
Although the stopper (3) is a stopper made of brass, the stopper (3) may be made of cast iron, and in this case, the unevenness treatment of the above-described embodiment is not required. Since there are fine burrows everywhere in the cross section of the cast iron, after finishing the cast iron plug with the same precision as the above example by cutting, a synthetic resin film is formed by the same method as each of the above examples. In the case of the configuration, the bonding strength between the synthetic resin film and the surface of the stopper becomes equal to that obtained by performing the above-mentioned roughening treatment.
【００３４】鋳鉄製の前記栓の場合にも、各部の精度に
ついては、上記実施例と同様に設定することが好まし
い。In the case of the plug made of cast iron, it is preferable to set the accuracy of each part in the same manner as in the above embodiment.
【図１】本発明の方法が実施されるガス栓の断面図FIG. 1 is a cross-sectional view of a gas stopper in which the method of the present invention is performed.
【図２】栓栓(3) の断面図FIG. 2 is a sectional view of the stopper (3).
(1) ・・・・本体 (2) ・・・・ガス回路 (3) ・・・・栓 (31)・・・・栓体 (1) ・ ・ ・ ・ Main body (2) ・ ・ ・ ・ Gas circuit (3) ・ ・ ・ ・ Plug (31) ・ ・ ・ ・ Plug
Claims (7)
部の少なくとも一方に合成樹脂被膜を形成する方法にお
いて、前記摺動面相当部の表面を所定の精度に仕上げる
第１の工程と、前記仕上げが施された前記摺動面相当部
を具備する部材の全体表面に所定の膜厚の合成樹脂被膜
を被覆形成する第２の工程とからなり、前記前記第１の
工程における摺動面相当部の仕上げ精度は、前記第２の
工程によって形成される前記合成樹脂被膜表面が摺動性
能に適する精度となるように前記合成樹脂被膜を形成す
ることによる精度低下を吸収できる程度の高い精度に仕
上げられているガス栓の摺動面の形成方法。1. A method of forming a synthetic resin film on at least one of the sliding surface equivalent portions serving as sliding surfaces of a metal gas stopper, wherein a first surface for finishing the surface of the sliding surface equivalent portion with a predetermined accuracy. And a second step of forming a synthetic resin film having a predetermined thickness on the entire surface of the member having the sliding surface equivalent portion on which the finishing is performed. The finishing accuracy of the portion corresponding to the sliding surface is such that a decrease in accuracy due to the formation of the synthetic resin film so that the surface of the synthetic resin film formed in the second step is suitable for sliding performance can be absorbed. Method of forming sliding surface of gas stopper finished with high precision.
記摺動面相当部が所定の精度に仕上げられる工程と、そ
の後に脱亜鉛処理または化学エッチング処理等により凹
凸化処理を施す工程とを含む請求項１に記載のガス栓の
摺動面の形成方法。2. The first step includes a step of finishing the portion corresponding to the sliding surface with a predetermined accuracy by cutting, and a step of subjecting the portion to a roughening process by a dezincing process or a chemical etching process. The method for forming a sliding surface of a gas stopper according to claim 1, comprising:
ス栓の栓とした請求項１又は請求項２に記載のガス栓の
摺動面の形成方法。3. The method for forming a sliding surface of a gas stopper according to claim 1, wherein the member having the portion corresponding to the sliding surface is a stopper of a gas stopper.
相当部に合成樹脂被膜を形成する方法において、前記栓
は鋳鉄製とし、前記摺動面相当部の表面を切削により所
定の精度に仕上げる第１の工程と、前記仕上げが施され
た前記摺動面相当部を具備する部材の全体表面に所定の
膜厚の合成樹脂被膜を被覆形成する第２の工程とからな
り、前記前記第１の工程における摺動面相当部の仕上げ
精度は、前記第２の工程によって形成される前記合成樹
脂被膜表面が摺動性能に適する精度となるように前記合
成樹脂被膜を形成することによる精度低下を吸収できる
程度の高い精度に仕上げられているガス栓の摺動面の形
成方法。4. A method for forming a synthetic resin film on a portion corresponding to a sliding surface of a plug serving as a sliding surface of a metal gas stopper, wherein the plug is made of cast iron, and a surface of the portion corresponding to the sliding surface is cut by cutting. A first step of finishing to a predetermined accuracy, and a second step of coating and forming a synthetic resin film of a predetermined thickness on the entire surface of the member having the sliding surface equivalent portion thus finished. The finishing accuracy of the portion corresponding to the sliding surface in the first step is such that the synthetic resin film is formed such that the surface of the synthetic resin film formed in the second step has an accuracy suitable for sliding performance. A method for forming a sliding surface of a gas stopper, which is finished to a high degree of accuracy that can absorb a decrease in accuracy due to the above.
第２の工程は、真空槽内における蒸着または重合による
工程である請求項１から請求項４までの何れかに記載の
ガス栓の摺動面の形成方法。5. The sliding of the gas stopper according to claim 1, wherein the second step for forming the synthetic resin film is a step of vapor deposition or polymerization in a vacuum chamber. The method of forming the moving surface.
円度を０．０５μｍ〜５μｍ、真直度を０．０５μｍ〜
５μｍ、表面粗さを０．０５μｍ〜５μｍとした請求項
３から請求項５までの何れかに記載のガス栓の摺動面の
形成方法。6. The accuracy of the stopper after completion of the first step is as follows: roundness: 0.05 μm to 5 μm, straightness: 0.05 μm to
The method for forming a sliding surface of a gas plug according to any one of claims 3 to 5, wherein the sliding surface is 5 µm and the surface roughness is 0.05 µm to 5 µm.
円度を０．０５μｍ〜３μｍ、真直度を０．０５μｍ〜
５μｍ、表面粗さを０．０５μｍ〜５μｍとした請求項
３から請求項５までの何れかに記載のガス栓の摺動面の
形成方法。7. The accuracy of the stopper after the completion of the second step is as follows: roundness: 0.05 μm to 3 μm, straightness: 0.05 μm to
The method for forming a sliding surface of a gas plug according to any one of claims 3 to 5, wherein the sliding surface is 5 µm and the surface roughness is 0.05 µm to 5 µm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25320896A JPH1082471A (en) | 1996-07-15 | 1996-09-25 | Gas cock sliding surface forming method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18476896 | 1996-07-15 | ||
| JP8-184768 | 1996-07-15 | ||
| JP25320896A JPH1082471A (en) | 1996-07-15 | 1996-09-25 | Gas cock sliding surface forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1082471A true JPH1082471A (en) | 1998-03-31 |
Family
ID=26502701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25320896A Pending JPH1082471A (en) | 1996-07-15 | 1996-09-25 | Gas cock sliding surface forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1082471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100841402B1 (en) | 2007-04-16 | 2008-06-25 | 이종태 | Spindle of gas control valve installed in portable gas burner and manufacturing methods of the same |
| JP2011163358A (en) * | 2010-02-04 | 2011-08-25 | Fujii Gokin Seisakusho Co Ltd | Overflow preventing valve |
-
1996
- 1996-09-25 JP JP25320896A patent/JPH1082471A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100841402B1 (en) | 2007-04-16 | 2008-06-25 | 이종태 | Spindle of gas control valve installed in portable gas burner and manufacturing methods of the same |
| JP2011163358A (en) * | 2010-02-04 | 2011-08-25 | Fujii Gokin Seisakusho Co Ltd | Overflow preventing valve |
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