CN102840349B - Disc valve - Google Patents
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- CN102840349B CN102840349B CN201210210830.8A CN201210210830A CN102840349B CN 102840349 B CN102840349 B CN 102840349B CN 201210210830 A CN201210210830 A CN 201210210830A CN 102840349 B CN102840349 B CN 102840349B
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Abstract
The present invention provides a kind of disc valve, it is not necessary to the Lubrication Composition of grease etc., and needs not be the material with self-lubricity, and has good sliding capability。A kind of disc valve, it is be made up of first disc element formed by ceramic material at least one with discharge orifice and the second disc element, by making described first disc element and the second disc element carry out the connection of described discharge orifice with sliding state relative movement, the disc valve of blocking, it is characterized in that, the aggregate value of the center roughness depth (Rk) of Japanese Industrial Standards' JIS B 0671 defined of the sliding surface sliding with the second disc element of described first disc element and the crest height (Rpk) of reduction is below 15nm, and between described first disc element and the second disc element, do not supply lubricant when using。
Description
Technical field
The present invention relates to a kind of disc valve and utilize the faucet of this disc valve。
Background technology
In recent years, ceramic disk (the clear 56-134671 publication of such as Japanese Laid-Open (patent documentation 1)) is utilized widely as the valve of faucet。Owing to the mechanical property of pottery hardness, intensity etc. compared with metal is excellent, thus attempt to its characteristic, improve the endurance quality of disc valve。In actual utilization, in order to reduce pottery friction each other, start to supply on the sliding surface of valve widely the Lubrication Composition of grease etc.。
But, there is following problem, due to use all the year round, the Lubrication Composition of grease etc. dries up, and reduces friction and becomes insufficient, causes that sliding properties worsens。And, there is also following problem because the kind of Lubrication Composition and by the rotten or solidification caused during using, cause that sliding properties worsens because attachment foreign body。
In order to tackle above-mentioned problem, Japanese Laid-Open flat 02-256973 publication (patent documentation 2) proposes there is a kind of technology, implements machining, improve sliding properties on sliding surface。According to this publication, in disc valve, by making the sliding face of at least one in 2 tensioning spools become central part projecting shape convexly, and the sliding properties that improve each valve core chamber on the basis of sealing can kept, not make with lubricator just can reduce operation torque。Specifically, making a sliding face become the projecting shape of the convex surface shape that central part projecting height is 1～3 μm, making another sliding face is flatness less than 1 μm。And, the arithmetic average roughness Ra making each sliding face is less than 0.1 μm。
And Japanese Laid-Open flat 07-190208 publication (patent documentation 3) proposes there is a kind of technology, by constituting disc valve with the silicon carbide-carbon composite material with self-lubricity, improves the sliding properties of disc valve。In this publication, the material with self-lubricity can be explicitly used can to obtain good sliding properties by the contrast with comparative example。In the comparative example of this publication, movable disc, fixed disc all use the aluminium oxide of purity 89%, and the flatness of fixing side discs is 0.9 μm, and arithmetic average roughness Ra is 0.1 μm, the flatness of movable disc is 0.6 μm, and arithmetic average roughness Ra is 0.1 μm。In long duration test, operate torque when carrying out when uncoated silicon class grease and sharply increase, just become for 50,000 times to cannot be carried out operation。
Patent documentation 1: the clear 56-134671 publication of Japanese Laid-Open
Patent documentation 2: the flat 02-256973 publication of Japanese Laid-Open
Patent documentation 3: the flat 07-190208 publication of Japanese Laid-Open
Summary of the invention
Present inventor obtains following opinion specifically, by making the sliding surface of disc element meet specified conditions, without the Lubrication Composition of grease etc., nor it is necessarily the material with self-lubricity, is just capable of the disc valve with good sliding properties。The present invention is based on above-mentioned opinion。
Thus, it is an object of the invention to provide a kind of disc valve, it is not necessary to the Lubrication Composition of grease etc., and need not be the material with self-lubricity, and there is good sliding capability。
And, the disc valve of the present invention is to be made up of first disc element formed by ceramic material at least one with discharge orifice and the second disc element, by making described first disc element and the second disc element carry out the connection of described discharge orifice with sliding state relative movement, the disc valve of blocking, it is characterized in that, the aggregate value of the center roughness depth (Rk) of Japanese Industrial Standards' JISB0671 defined of the sliding surface sliding with the second disc element of described first disc element and the crest height (Rpk) of reduction is below 15nm, and between described first disc element and the second disc element, do not supply lubricant when using。
Accompanying drawing explanation
Fig. 1 indicates that the top view of the disc element involved by the embodiment of the present invention。
Fig. 2 indicates that the axonometric chart of the internal structure of the single-handle water-tap involved by the embodiment of the present invention。
Fig. 3 indicates that the curve chart of the change of the operation torque involved by the embodiment of the present invention。
Symbol description
1-movable disc；11-movable disc discharge orifice；2-fixed disc；21-guttation discharge orifice；22-water supply discharge orifice；23-supplying hot water discharge orifice；3-lever；4-sliding bar。
Detailed description of the invention
The disc valve of the present invention meets except essential condition described later except first and second disc element constituting disc valve, it is meant that with the field belonging to the present invention is classified or is interpreted as disc valve, and the disc valve that the disc valve that will be understood from now on is identical。
Concrete being illustrated in of composition of the disc valve of the present invention is discussed below, but the disc valve of the present invention is at least made up of two disc elements。Generally, disc element is made up of at least two disk being referred to as movable disc and fixed disc, and in the present invention, the first disc element and the second disc element can be any one of movable disc and fixed disc, but preferably making the first disc element is movable disc。
In the present invention, the aggregate value of the center roughness depth (coreroughnessdepth) (Rk) making Japanese Industrial Standards' JISB0671 defined of the sliding surface of this first disc element and the crest height (reducedpeakheight) (Rpk) reduced is below 15nm, it is preferred to below 10nm。By making the aggregate value of Rk and Rpk of the sliding surface of the first disc element of disc valve be below above-mentioned numerical value, even if not using the material with self-lubricity, not supplying lubricant, good sliding capability also can be played。
The sliding surface of the first disc element of disc valve is specified in the present invention with the crest height (Rpk) of the center roughness depth (Rk) of Japanese Industrial Standards' JISB0671 defined and reduction。Generally, the arithmetic average roughness Ra using Japanese Industrial Standards' JISB0671 defined when surface smoothness being evaluated more。But according to the opinion that present inventor is obtained, compared with this Ra, the aggregate value of above-mentioned Rk and Rpk is able to more relevantly represent the index of the sliding properties of the disc element of disc valve。The aggregate value of Rk and Rpk is according to surface roughness curve, the absolute value of its average line to the deviation measuring curve is added up to, average value。
The relation of the sliding properties of the meaning of the index of the aggregate value of this Rk and Rpk and the disc element of disc valve is also indefinite, but can consider as follows。That is, in the present invention, the aggregate value of Rk and Rpk of the first disc element sliding surface of disc valve is below 15nm。Although aggregate value and the Ra of this Rk and Rpk cannot directly be contrasted, but can serve as the value that trend is approximate。But, the such surface with high surface smoothness of the first disc element for the disc valve of the present invention, Ra is subject to being present in the impact in the hole (hole) on surface significantly, even if however, it was found that there is this hole (hole), its impact that adaptation or sliding properties are given is also less。That is, the degree that Ra is less than 0.1 μm in the past preferably considered, the namely degree of below 100nm, however, it was found that in the field of below the 15nm of the surface smoothness higher than it, it is impossible to the protuberance state that sliding capability is given impact is correctly judged with Ra。And, according to the disc element possessing the surface with this high flatness, even if not using the material with self-lubricity, not supplying lubricant, also can obtain playing the good such remarkable result of sliding capability。Thus, for instance even if when the density of material low and when there is hole on sliding surface, also can pass through to make the aggregate value of Rk and Rpk be in above-mentioned scope, and play extremely good sliding capability, therefore, the present invention in material selection also advantageously。
In the present invention, using the center roughness depth (Rk) in the center roughness depth (Rk) of Japanese Industrial Standards' JISB0671 defined, the crest height (Rpk) reduced, the trough degree of depth (reducedvalleydepth) (Rvk) that reduces and the crest height (Rpk) that reduces as index。Thus, it is possible to remove the impact of the hole caused because of density of material, and correctly judge the protuberance state that sliding capability is given impact。
According to one preferred mode of the present invention, the arithmetic average roughness Ra of the sliding surface of the second disc element is preferably less than 0.5 μm, it is more preferable to be less than 0.3 μm, it is desirable to be preferably less than 0.2 μm。The surface smoothness of the second disc element in such range time, it is possible to obtain the overall good sliding capability of disc valve and good sealing property。
According to other preferred mode of the present invention, it is preferable that the first disc element, the second disc element are the projecting shape on the central part of sliding surface with protuberance。By making the sliding surface of disc element be this shape, it is possible to control contact area, keeping on the basis of good sealing, sliding capability can be improved further。
In the present invention, when to make sliding surface be projecting shape, for flatness, the upper limit is preferably less than 1.0 μm, it is more preferable to be less than 0.5 μm。Good Water Pressure Resistance can be played by making flatness be within the scope of this, reduce the probability that liquid spills from sliding surface。Flatness mentioned here refers to the fluctuating in the face relative to datum plane, for instance the FUJINONF601 miniature laser interferometer manufactured with Fuji Photo Film Co., Ltd. is measured。
Material as the disc element forming the present invention, it is possible to utilize the non-oxidized substance class ceramic composite materials of carborundum, silicon nitride etc. or the oxide-based ceramic materials of aluminium oxide, zirconium oxide (including complete stability, partially stabilized zirconium oxide) etc. and composite thereof aptly。Carborundum is the viewpoint from superperformance and preferred material, and aluminium oxide is the viewpoint from manufacturing cost and preferred material。
In the disc element of the present invention, it is possible to add various auxiliary element in above-mentioned pottery。Such as, described in Japanese Laid-Open 2005-206460 publication, by adding the various auxiliary elements of sodium, magnesium, calcium, silicon, cobalt, nickel etc. in aluminium oxide, or add the clay mineral of Kaolin, bentonite, organic carbon clay (kieselguhr: kibushiclay), points, allophane, canbyite, pyrophyllite, Muscovitum group, montmorillonite group, Vermiculitum, chlorite group, Paligorskite, kaolinite, nacrite, dickite, galapectite etc., it is possible to promote the minimizing of internal void and the raising etc. of low-temperature sintering。Now, the auxiliary element of interpolation is preferably more than below 10 weight % 0 weight %, it is particularly preferred that be more than below 6 weight % 4 weight %。
And, it is also preferred that use aluminium oxide as main constituent, by adding zirconium oxide, improve the material of abrasion resistance properties。Now, as the zirconium oxide added, from the preferred stabilized zirconia of resistance to water aspect, it is particularly preferred that use partially stabilized zirconium oxide。As the zirconic amount added, it is preferred to more than below 10 weight % 2.5 weight %, it is particularly preferred that be about 5 weight %。As material that is partially stabilized for zirconium oxide and that add, it is possible to utilize MgO, CaO, Y aptly2O3Deng, from the preferred Y of the viewpoint of intensity2O3。It is preferably more than 2mol% below 8mol%, it is preferred to about 3mol% as addition。
In the molding of the disc element of the present invention, it is possible to utilize the forming method of known ceramics aptly。Such as, powdered ceramic material molding is made by metal mold, cast, injection etc., it may be considered that the method carrying out normal pressure molding。
Manufacture method as the disc element of the present invention, it is possible to utilize well-known manufacture method aptly。Preferably normal pressure-sintered from the viewpoint of production efficiency, but gas pressure sintering, hot pressing, HIP sintering (HIP) etc. can also be passed through and manufacture。
Flatness is improved by carrying out Surface Machining with the sliding surface of the well-known method disc element to being manufactured by said method。Such as; in order to obtain desired surface roughness in grinding step; after sintered body being processed with free abrasive particle or fixed grain, it is processed with the free abrasive particle of diamond, to obtain desired surface roughness and surface configuration, precision eventually through mechanical lapping。
The ideograph of the disc element of the disc valve of the present invention shown in Fig. 1。Fixed disc 2 shown in movable disc 1, Fig. 1 (b) shown in Fig. 1 (a)。The sliding surface of movable disc 1 has been formed about movable disc discharge orifice 11 in the central portion。And, the sliding surface of fixed disc 2 is connected to the supplying hot water discharge orifice 23 that the water supply discharge orifice 22 that the guttation discharge orifice 21 that the guttation mouth with faucet is connected is connected with feed pipe is connected with heat supply water pipe。
The form that movable disc 1 contacts with respective sliding surface with fixed disc 2 forms disc valve。Under sealing state, water supply discharge orifice 22, supplying hot water discharge orifice 23 are in the state being interrupted with movable disc discharge orifice 11, and the hot and cold water from feed pipe, heat supply water pipe is in sealing state。
By making movable disc 1 slide under water flowing state, and movable disc discharge orifice 11 is made to be in the state connected with discharge orifice 22 of supplying water, supplying hot water discharge orifice 23。Now, from water supply discharge orifice 22, the hot and cold water of supplying hot water discharge orifice 23 supply flow through movable disc discharge orifice 11, and flow into guttation discharge orifice 21, thus constitute the structure of water flowing。
And, by making movable disc 1 fascinate along about paper direction, and make the connection area of movable disc discharge orifice 11 and water supply discharge orifice 22, supplying hot water discharge orifice 23 change, thus, change the blending ratio of the hot and cold water spued, by only connecting with one of them, additionally it is possible to only discharge hot water or cold water。At this, illustrate the disc element that cold-hot water mixing water tap uses, as long as but disc element be fixed disc, movable disc at least one of which on discharge orifice is set, and undertaken connecting, interdicting by relative movement, can be then arbitrary form, it is possible to apply the shape of well-known disc element aptly。
The disc element processed by said method is assembled and the disc valve becoming the present invention by well-known component and well-known method。And, handle water tap can be obtained by this disc valve being loaded faucet by well-known method。As long as handle water tap is the faucet that single faucet, cold-hot water mixing water tap etc. use disc valve, it is not particularly limited。
As the disc valve applying the present invention, disc element can also be more than two。Such as, as in figure 2 it is shown, configure as follows, fixed disc 2 ' is set, clips movable disc 1 with fixed disc 2,2 '。
The disc valve of the present invention is unrelated with material has good sliding。Specifically, for the disc valve of the present invention, though density of material low and when there is hole on sliding surface, it is also possible to the flatness of protuberance and center by making surface is in prescribed limit and plays good sliding capability。
Embodiment
Below, by applying the present invention to embodiment and the comparative example of the disc valve of single shank type cold-hot water mixing water tap, illustrate in further detail, but the present invention is not limited to these embodiments。
Embodiment 1
Silicon carbide powder coordinates the carbon (C) of ormal weight, boron carbide (B4C) as sintering adjuvant, and then adds the molding binding agent of ormal weight and obtain slip。So obtained slip is carried out spray drying and becomes granule, after it is carried out punch forming, by normal pressure-sintered and obtain carborundum sintered body。With fixed grain, the sliding part of obtained carborundum sintered body is carried out grinding, process followed by mechanical lapping, be fixed disk。Now, it is processed with the free abrasive particle of diamond in mechanical lapping is processed。Movable disc, on the basis of the step same with fixed disc, carries out the mechanical lapping processing added, to obtain the better surface roughness of precision with the free abrasive particle of thinner diamond。
Utilize the flatness after the FUJINONF601 miniature laser interferometer measurement that Fuji Photo Film Co., Ltd. the manufactures processing of obtained disc element。Its result, the flatness of movable disc sliding surface is 0.27 μm, and the flatness of fixed disc sliding surface is 0.26 μm。And, utilize surface roughness measurement device (Kosaka Laboratory Ltd. surface roughometer SE3500) to determine surface roughness。Its result, the aggregate value of the center roughness depth (Rk) of Japanese Industrial Standards' JISB0671 defined of movable disc sliding surface and the crest height (Rpk) of reduction is 4.7nm, and the arithmetic average roughness (Ra) of fixed disc sliding surface is 0.16 μm。
By loading above-mentioned disc element, and obtain single shank type cold-hot water mixing water tap as shown in Figure 2。It addition, in fig. 2, single shank type cold-hot water mixing water tap is made up of movable disc 1, fixed disc 2, lever 3 and sliding bar 4。It is constructed as below, and user is by making lever 3 move up and down, and makes the sliding bar 4 being connected with lever 3 movable, relatively slides relative to fixed disc 2 with this movable disc 1 that accompanies, and the discharge orifice thus each arranged is connected and water flowing。
In obtained single shank type cold-hot water mixing water tap, guttation amount is made all to keep 8L/min to make handle move up and down thus having carried out long duration test at cold water side, hot water side, result is as it is shown on figure 3, the result of the good operation torque that also can be maintained even more than 100,000 times。
Embodiment 2
It is fixed disk and movable disc after similarly to Example 1 the sintered body obtained similarly to Example 1 being processed。Method similarly to Example 1 is utilized to determine the sliding surface of above-mentioned disc element。Its result, the flatness of movable disc sliding surface is 0.26 μm, and the flatness of fixed disc sliding surface is 0.28 μm。And, for surface roughness, the aggregate value of Rk and Rpk of movable disc sliding surface is 3.8nm, and the Ra of fixed disc sliding surface is 0.14 μm。
By loading above-mentioned disc element similarly to Example 1, and obtain single shank type cold-hot water mixing water tap。In obtained single shank type cold-hot water mixing water tap, guttation amount is made all to keep 8L/min to make handle move up and down thus having carried out long duration test at cold water side, hot water side。Its result is as it is shown on figure 3, the result of the good operation torque that also can be maintained even more than 100,000 times。
Comparative example 1
Carry out grinding with the sliding part of the fixed grain sintered body to obtaining similarly to Example 1, obtain movable disc。And, on the basis of the step same with movable disc, carry out mechanical lapping processing with the free abrasive particle of diamond, be fixed disk。
After processing, method similarly to Example 1 is utilized to determine their sliding surface。Its result, the flatness of movable disc sliding surface is 0.53 μm, and the flatness of fixed disc sliding surface is 0.25 μm。And, for surface roughness, the aggregate value of Rk and Rpk of movable disc sliding surface is 122.5nm, and the Ra of fixed disc sliding surface is 0.15 μm。
By loading above-mentioned disc element similarly to Example 1, and obtain single shank type cold-hot water mixing water tap。In obtained single shank type cold-hot water mixing water tap, guttation amount is made all to keep 8L/min to make handle move up and down thus having carried out long duration test at cold water side, hot water side, result, as it is shown on figure 3, operation torque sharply increases, just occurs for 30,000 times sealing bad and becomes operating。
Comparative example 2
Carry out grinding with the sliding part of the fixed grain sintered body to obtaining similarly to Example 1, carry out mechanical lapping processing with the free abrasive particle of diamond thereafter, be thus fixed disk and movable disc。
After processing, method similarly to Example 1 is utilized to determine their sliding surface。Its result, the flatness of movable disc sliding surface is 0.21 μm, and the flatness of fixed disc sliding surface is 0.26 μm。And, for surface roughness, the aggregate value of Rk and Rpk of movable disc sliding surface is 46.7nm, and the Ra of fixed disc sliding surface is 0.16 μm。
By loading above-mentioned disc element similarly to Example 1, and obtain single shank type cold-hot water mixing water tap。In obtained single shank type cold-hot water mixing water tap, guttation amount is made all to keep 8L/min to make handle move up and down thus having carried out long duration test at cold water side, hot water side, result, as it is shown on figure 3, operation torque sharply increases, just occurs for 50,000 times sealing bad and becomes operating。
Comparative example 3
Carry out grinding with the sliding part of the free abrasive particle sintered body to obtaining similarly to Example 1, carry out mechanical lapping processing with the free abrasive particle of diamond thereafter, be thus fixed disk and movable disc。
After processing, method similarly to Example 1 is utilized to determine their sliding surface。Its result, the flatness of movable disc sliding surface is 0.22 μm, and the flatness of fixed disc sliding surface is 0.25 μm。And, for surface roughness, the aggregate value of Rk and Rpk of movable disc sliding surface is 38.6nm, and the Ra of fixed disc sliding surface is 0.16 μm。
By loading above-mentioned disc element similarly to Example 1, and obtain single shank type cold-hot water mixing water tap。In obtained single shank type cold-hot water mixing water tap, guttation amount is made all to keep 8L/min to make handle move up and down thus having carried out long duration test at cold water side, hot water side, result, as it is shown on figure 3, operation torque sharply increases, just occurs for 70,000 times sealing bad and becomes operating。
Embodiment 3
At easy sinterability aluminium oxide, (Showa electrician manufactures: add partially stabilized zirconium oxide (east Cao's manufacture: TZ-3Y-E), and then add the molding binding agent of ormal weight and obtain slip of 5% in AL160SG)。So obtained slip is carried out spray drying and becomes granule, after it is carried out punch forming, burnt till by air and obtain being added with zirconic alumina sintered body。With fixed grain, the sliding surface of obtained sintered body is carried out grinding, process followed by mechanical lapping, be fixed disk。Now, it is processed with the free abrasive particle of diamond in mechanical lapping is processed。Movable disc, on the basis of the step same with fixed disc, carries out the mechanical lapping processing added, to obtain the better surface roughness of precision with the free abrasive particle of thinner diamond。
After processing, method similarly to Example 1 is utilized to determine their sliding surface。Its result, the flatness of movable disc sliding surface is 0.3 μm, and the flatness of fixed disc sliding surface is 0.25 μm。And, for surface roughness, the aggregate value of Rk and Rpk of movable disc sliding surface is 12nm, and the Ra of fixed disc sliding surface is 0.15 μm。
By loading above-mentioned disc element similarly to Example 1, and obtain single shank type cold-hot water mixing water tap。In obtained single shank type cold-hot water mixing water tap, guttation amount is made all to keep 8L/min to make handle move up and down thus having carried out long duration test at cold water side, hot water side。Its result, also can keep good operation torque even more than 100,000 times。
Embodiment 4
It is being mixed with by MgO, CaO, SiO2, and Fe2O396% alumina mixed powder of the entrained components of composition adds the molding binding agent of ormal weight and obtains slip。So obtained slip is carried out spray drying and becomes granule, after it is carried out punch forming, burnt till by air and obtain 96% alumina sintered body。With fixed grain, the sliding surface of obtained sintered body is carried out grinding, process followed by mechanical lapping, be fixed disk。Now, it is processed with the free abrasive particle of diamond in mechanical lapping is processed。Movable disc, on the basis of the step same with fixed disc, carries out the mechanical lapping processing added, to obtain the better surface roughness of precision with the free abrasive particle of thinner diamond。
After processing, method similarly to Example 1 is utilized to determine their sliding surface。Its result, the flatness of movable disc sliding surface is 0.32 μm, and the flatness of fixed disc sliding surface is 0.28 μm。And, for surface roughness, the aggregate value of Rk and Rpk of movable disc sliding surface is 15nm, and the Ra of fixed disc sliding surface is 0.14 μm。
By loading above-mentioned disc element similarly to Example 1, and obtain single shank type cold-hot water mixing water tap。In obtained single shank type cold-hot water mixing water tap, guttation amount is made all to keep 8L/min to make handle move up and down thus having carried out long duration test at cold water side, hot water side。Its result, also can keep good operation torque even more than 100,000 times。
Table 1
Claims (10)
1. a disc valve, it is be made up of first disc element formed by ceramic material at least one with discharge orifice and the second disc element, by making described first disc element and the second disc element carry out the disc valve of the connection of described discharge orifice, blocking with sliding state relative movement, it is characterized in that
The aggregate value of the center roughness depth Rk of Japanese Industrial Standards' JISB0671 defined of the sliding surface sliding with the second disc element of described first disc element and the crest height Rpk of reduction is below 15nm, and does not supply lubricant when using between described first disc element and the second disc element。
2. disc valve according to claim 1, it is characterised in that the aggregate value of the center roughness depth Rk of Japanese Industrial Standards' JISB0671 defined of the sliding surface of described first disc element and the crest height Rpk of reduction is below 10nm。
3. disc valve according to claim 1 and 2, it is characterised in that the arithmetic average roughness Ra of the sliding surface sliding with the first disc element of described second disc element is less than 0.2 μm。
4. disc valve according to claim 1 and 2, it is characterised in that the sliding surface of described first disc element and/or described second disc element is following shape, having at central part is highly the protuberance of less than 0.5 μm。
5. disc valve according to claim 1 and 2, it is characterised in that the sliding surface of described first disc element and/or described second disc element is formed by aluminium oxide。
6. disc valve according to claim 2, it is characterised in that the sliding surface of described first disc element is formed by carborundum。
7. disc valve according to claim 2, it is characterised in that described first disc element is formed by the ceramic material without self-lubricity。
8. a disc valve, it is be made up of first disc element formed by ceramic material at least one with discharge orifice and the second disc element, by making described first disc element and the second disc element carry out the disc valve of the connection of described discharge orifice, blocking with sliding state relative movement, it is characterized in that
The aggregate value of the center roughness depth Rk of Japanese Industrial Standards' JISB0671 defined of the sliding surface sliding with the second disc element of described first disc element and the crest height Rpk of reduction is below 15nm, and between described first disc element and the second disc element, do not supply lubricant when using
The sliding surface of described first disc element is formed by carborundum。
9. a disc valve, it is be made up of first disc element formed by ceramic material at least one with discharge orifice and the second disc element, by making described first disc element and the second disc element carry out the disc valve of the connection of described discharge orifice, blocking with sliding state relative movement, it is characterized in that
The aggregate value of the center roughness depth Rk of Japanese Industrial Standards' JISB0671 defined of the sliding surface sliding with the second disc element of described first disc element and the crest height Rpk of reduction is below 15nm, and between described first disc element and the second disc element, do not supply lubricant when using
Described first disc element is formed by the ceramic material without self-lubricity。
10. a handle type tap, it is characterised in that possess:
Disc valve described in claim 1,8 or 9；
Lever handle, makes the relative movement when sliding of described disc valve；
And tap main body, there is the confession water route that the discharge orifice with described disc valve links,
Between described first disc element and the second disc element, lubricant is not supplied during use。
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-136130 | 2011-06-20 | ||
| JP2011136130 | 2011-06-20 | ||
| JP2012044942A JP5990934B2 (en) | 2011-06-20 | 2012-03-01 | Disc valve |
| JP2012-044942 | 2012-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102840349A CN102840349A (en) | 2012-12-26 |
| CN102840349B true CN102840349B (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210210830.8A Active CN102840349B (en) | 2011-06-20 | 2012-06-20 | Disc valve |
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| Country | Link |
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| CN (1) | CN102840349B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109997085B (en) * | 2016-11-29 | 2021-12-24 | 京瓷株式会社 | Watch case |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327854Y (en) * | 1997-08-14 | 1999-07-07 | 杨东林 | Ceramic sealing piece for faucet |
| CN2411391Y (en) * | 1999-01-08 | 2000-12-20 | 张腾广 | Ceramic wafer with self-protection function |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56134671A (en) * | 1980-03-21 | 1981-10-21 | Kyocera Corp | Faucet valve |
| JP2729657B2 (en) * | 1989-03-28 | 1998-03-18 | 京セラ株式会社 | Ceramic disc valve |
| JP3025938B2 (en) * | 1993-12-27 | 2000-03-27 | 花王株式会社 | Disc valve |
-
2012
- 2012-06-20 CN CN201210210830.8A patent/CN102840349B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327854Y (en) * | 1997-08-14 | 1999-07-07 | 杨东林 | Ceramic sealing piece for faucet |
| CN2411391Y (en) * | 1999-01-08 | 2000-12-20 | 张腾广 | Ceramic wafer with self-protection function |
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| CN102840349A (en) | 2012-12-26 |
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