CN109997085A - Watch shell - Google Patents
Watch shell Download PDFInfo
- Publication number
- CN109997085A CN109997085A CN201780073184.6A CN201780073184A CN109997085A CN 109997085 A CN109997085 A CN 109997085A CN 201780073184 A CN201780073184 A CN 201780073184A CN 109997085 A CN109997085 A CN 109997085A
- Authority
- CN
- China
- Prior art keywords
- watch shell
- chimeric surface
- chimeric
- sample
- lid component
- 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.)
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Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time pieces
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/08—Hermetic sealing of openings, joints, passages or slits
- G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G17/00—Structural details; Housings
- G04G17/02—Component assemblies
Abstract
Watch shell of the invention is made of ceramics.In addition, the watch shell has the chimeric surface opposed with the The lid component in chimeric with The lid component.Moreover, the arithmetic average roughness (Ra) found out from roughness curve is 0.6 μm hereinafter, the protrusion mountain portion height (Rpk) found out from roughness curve is 0.9 μm or less in the chimeric surface.
Description
Technical field
The present invention relates to watch shells.
Background technique
In order to make wrist-watch that there is high-grade sense, then a kind of watch shell being made of ceramics is proposed, which is for accommodating
The exterior member of machine core etc..
For example, in patent document 1, disclose a kind of table body and rear cover part or all by ceramics or artificial treasured
The table shell that the material of stone is constituted.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Application 63-249085 bulletin
Summary of the invention
Watch shell of the invention is made of ceramics.In addition, the watch shell has and opposed chimeric of chimeric The lid component
Face.Moreover, the arithmetic average roughness Ra that the slave roughness curve of the chimeric surface is found out is 0.6 μm hereinafter, and the chimeric surface
The protrusion mountain portion height Rpk that finds out of slave roughness curve be 0.9 μm or less.
Detailed description of the invention
Fig. 1 is the synoptic diagram for showing an example of watch shell of the invention.
Specific embodiment
The watch shell of wrist-watch is the structure that (hereinafter, being recorded as loading and unloading) can be installed or be removed to The lid component.The The lid component is
Prevent water, dust etc. from entering the component of the inside of watch shell.Here, replace wrist-watch battery when, need by the The lid component from
Watch shell removes.In the case where watch shell is made of ceramics, if the handling of The lid component are repeated to replace battery,
With The lid component it is chimeric in the chimeric surface (hereinafter, being only recorded as chimeric surface sometimes) of the watch shell opposed with The lid component be easy mill
Damage.Moreover, water, dust etc. are easy to invade between The lid component and watch shell, thus hand if chimeric surface wear in watch shell
The waterproofness of table, dust tightness reduce.In addition, being produced since the clast generated in chimeric surface wear enters in machine core to become
The reason of raw failure.
For watch shell of the invention, even if the handling of The lid component are repeated, since chimeric surface is not easy to wear, energy
It is enough chronically to maintain waterproofness, dust tightness.Hereinafter, watch shell of the invention is described in detail using Fig. 1.It needs to illustrate
, in watch shell 1 shown in Fig. 1, The lid component is embedded in watch shell 1 from the lower section in diagram, and shadow surface is chimeric surface 2.
Watch shell 1 of the invention is made of ceramics.Here, ceramics refer to aluminum oxide ceramics, zirconium oxide ceramics, nitridation
Siliceous ceramics or Silicon carbide ceramic etc..In ceramics, if constituting watch shell 1 of the invention using zirconium oxide ceramics, i.e.,
Make that not easy damaged is used for a long time also, therefore, it is difficult to damage beauty.
Here, zirconium oxide ceramics refer to, it with zirconium oxide ceramics as main component, and is to constitute all of ceramics
The substance of zirconium oxide containing 70 mass % or more in 100 mass % of ingredient.Moreover, the content of above-mentioned main component can pass through
The following method calculates.Firstly, measuring watch shell 1 using X-ray diffraction device (XRD), and using JCPDS card to acquired
The value of 2 θ (2 θ be angle of diffraction) identified.At this point, in the case where watch shell 1 is made of zirconium oxide ceramics, confirmation
To the presence of zirconium oxide.
Next, using ICP (Inductively Coupled Plasma) emission spectrophotometer (ICP) to identification
To ingredient in metal component (other than oxygen, carbon and nitrogen etc.) carry out quantitative analysis.Then, according to quantitative analysis as a result,
Calculate the content by the XRD ingredient (compound) recognized.For example, if the ingredient recognized by XRD is zirconium oxide, from passing through
Zirconium oxide (ZrO is converted by the content that ICP measures resulting zirconium (Zr)2).If the content being converted into herein be 70 mass % with
On, then it is zirconium oxide ceramics.Confirm it should be noted that being also able to use same method for other ceramics.
Moreover, watch shell 1 of the invention has the chimeric surface 2 opposed with chimeric The lid component.Moreover, the chimeric surface 2
The arithmetic average roughness Ra that finds out of slave roughness curve be 0.6 μm hereinafter, and the slave roughness curve of the chimeric surface 2 ask
Protrusion mountain portion height Rpk out is 0.9 μm or less.
Here, arithmetic average roughness Ra refers to the value of JIS B 0601 (2013) defined.In addition, prominent mountain portion height
Rpk is provided by JIS B 0671-2 (2002), is defined as follows.Firstly, including the 40% of the measuring point of roughness curve
The center portion of load curve will be tilted the gentlest with the secant that the difference of payload length rate is 40% load curve drawn
Straight line is set as equivalent straight line.Next, position and payload length rate 100% by the equivalent straight line in payload length rate 0%
Core is set as between two height and positions that position is intersected with the longitudinal axis.Moreover, in roughness curve, on core
The average height in mountain portion outstanding is prominent mountain portion height Rpk.
Moreover, watch shell 1 of the invention, by meeting above structure, the bumps of chimeric surface 2 are smaller, and mountain portion outstanding compared with
Small, therefore, even if the handling of The lid component are repeated, mountain portion outstanding is not also easy to wear.Therefore, even if watch shell of the invention
1 is repeated the handling of The lid component, also can chronically maintain waterproofness, dust tightness.It should be noted that in chimeric surface 2,
If arithmetic average roughness Ra is 0.1 μm or more, and prominent mountain portion height Rpk is 0.06 μm or more, then there is more mountain portion,
To be easy to carry out the handling of The lid component.
In addition, the level error Rk for the core that the slave roughness curve of the chimeric surface 2 in watch shell 1 of the invention is found out can
Think 0.8 μm or less.It is provided here, the level error Rk of core refers to by JIS B0671-2 (2002), and in roughness curve
The index of the level error of the middle upside for indicating above-mentioned core and downside.
If meeting such structure, the height tolerance of the core of the chimeric surface 2 of watch shell 1 of the invention is smaller, because
This, even if The lid component and location contacts corresponding with the core of chimeric surface 2, the position be not also easy to wear.Therefore, even if instead
The handling for carrying out The lid component again, can also maintain waterproofness, dust tightness longerly.It should be noted that in chimeric surface 2, if
The level error Rk of core is 0.11 μm or more, then has excellent waterproofness and excellent dust tightness, and be easy to be covered
The handling of component.
In addition, for the chimeric surface 2 in watch shell 1 of the invention, the level error Rk of core and prominent mountain portion height Rpk
The ratio between Rpk/Rk can be 0.7 or less.If meeting such structure, the chimeric surface 2 of watch shell 1 of the invention becomes outstanding
Mountain portion is smaller and therefore the lesser surface texture of height tolerance of core even if the handling of The lid component are repeated, also can
Waterproofness, dust tightness are maintained longerly.It should be noted that in chimeric surface 2, if the level error Rk of core and prominent mountain portion
The ratio between height Rpk Rpk/Rk is 0.5 or more, then has excellent waterproofness and excellent dust tightness, and be easy to carry out lid structure
The handling of part.
In addition, the skewness Rsk that the slave roughness curve of the chimeric surface 2 in watch shell 1 of the invention is found out can be negative.?
This, skewness Rsk refers to, is provided by JIS B 0601 (2013), and when using the average height of roughness as center line, indicates mountain
The index of portion and valley relative to the ratio of the center line.If skewness Rsk is negative, then it represents that in the region in mountain portion compared with valley
It is larger.If meeting such structure, even if the handling of The lid component are repeated, since the mountain portion in chimeric surface 2 is difficult to itself
Breakage, therefore waterproofness, dust tightness can be maintained longerly.
In addition, the average mountain height Rpm that finds out of the slave roughness curve of the chimeric surface 2 in watch shell 1 of the invention can be with
It is 0.5 μm or less.Here, average mountain height Rpm refers to, it is long that along the direction of average line benchmark is only intercepted from roughness curve
Degree, in the section that datum length is divided into five equal parts, by from the average height in highest mountain portion included by each section to
When height until top is set as Rpi, the average value of the Rpi in this five sections.It is of the invention if meeting such structure
The mountain portion outstanding of the chimeric surface 2 of watch shell 1 is less, therefore, even if the handling of The lid component are repeated, the mill in chimeric surface 2
Damage is also less, so as to maintain waterproofness, dust tightness longerly.It should be noted that in chimeric surface 2, if average mountain is high
Spending Rpm is 0.2 μm or more, then has excellent waterproofness and excellent dust tightness, and is easy to carry out the handling of The lid component.
In addition, the root mean square slope R Δ q of the chimeric surface 2 in watch shell 1 of the invention can be 10 ° or less.Here,
Root slope R Δ q refers to, is provided by JIS B 0601 (2013), and indicates the inclined index gently spent in mountain portion.If meeting
Such structure, the then steep in the mountain portion in the chimeric surface 2 of watch shell 1 of the invention, even if The lid component is repeated
Handling, mountain portion is not also easy to wear, therefore can maintain waterproofness, dust tightness longerly.It should be noted that in chimeric surface 2,
If root mean square slope R Δ q is 3 ° or more, there is excellent waterproofness and excellent dust tightness, and be easy to carry out The lid component
Handling.
In addition, the equispaced on the mountain portion vertex that the slave roughness curve of the chimeric surface 2 in watch shell 1 of the invention is found out
S can be 15 μm or less.Here, the equispaced S on mountain portion vertex refers to, provided, and is indicated such as by JIS B 0601 (1994)
Lower index: the average value at the mutual interval in vertex in adjacent mountain portion.If meeting such structure, in watch shell 1 of the invention
In chimeric surface 2, the mutual gap turn narrow in mountain portion of the easy intrusion such as water, dust, therefore can be improved waterproofness, dust tightness.It needs
It is noted that in chimeric surface 2, if the equispaced S on mountain portion vertex is 3 μm or more, with excellent waterproofness and
Excellent dust tightness, and be easy to carry out the handling of The lid component.
Here, arithmetic average roughness Ra, skewness Rsk, average mountain height in the chimeric surface 2 of watch shell 1 of the invention
Rpm, root mean square slope R Δ q are measured according to JIS B 0601 (2013).In addition, the chimeric surface 2 of watch shell 1 of the invention
In mountain portion vertex equispaced S according to JIS B 0601 (1994) measure.On the other hand, watch shell 1 of the invention
Chimeric surface 2 in protrusion mountain portion height Rpk, core level error Rk measured according to JIS B 0671-2 (2002).
As determination condition, for example, measured length is set as 0.8mm, boundary value is set as to 1.0mm, is 2 μm by probe radius
The scanning speed of probe is set as 1mm/ seconds.Then, in chimeric surface 2, at measurement at least three and its average value is found out i.e.
It can.
In addition, as shown in Figure 1, watch shell 1 of the invention can have groove portion 3 in chimeric surface 2.In The lid component, there are prominent
In the case where rising, which is the position chimeric with the protrusion.In this way, becoming lid if watch shell 1 of the invention has groove portion 3
The lid component then can be more firmly fixed on watch shell 1 by the protrusion of the component structure chimeric with groove portion 3.
In addition, the through hole 4 is to use as shown in Figure 1, watch shell 1 of the invention can have through hole 4 in chimeric surface 2
In the hole being inserted into for crown.It should be noted that crown is corrected the structure of operation etc. at the time of referring to for from outside to table
Part.
Hereinafter, being illustrated to the manufacturing method of watch shell 1 of the invention.It should be noted that herein by zirconium oxide
It is illustrated for the watch shell 1 that matter ceramics are constituted.
Firstly, by the zirconium oxide (ZrO of primary raw material2) powder and solvent and ball be put into togerther grinding machine, it is crushed
To defined granularity, to make slurry.Next, using spray dryer after adding adhesive to obtained slurry
It is spray-dried, to obtain particle.
Next, the particle, thermoplastic resin and paraffin etc. are put into mixing machine, it is kneaded while heating, thus
To base soil.Then, obtained base soil is put into pelletizer, obtains the particle of the raw material as injection moulding (injection molded).
Next, by obtained particle put into injection machine (injection molding machine), by injection molded obtain watchcase shape at
Body.
In this way, the formed body of watchcase shape makes then based on common injection molding and obtains watch shell in order to obtain
The shaping dies of shape, and the shaping dies is set to injection machine and carries out injection molded.Here, the shaping dies
The surface texture of inner surface be needed on the surface of formed body.Therefore, in order to obtain arithmetic average roughness Ra be 0.6 μm with
Under, and prominent mountain portion height Rpk is 0.9 μm of chimeric surface 2 below, uses the progress roller grinding after inner surface has to firing
The shaping dies for the surface texture that the amount of grinding of equal surface treatments is considered, to make formed body.It needs to illustrate
Be, in chimeric surface 2, the level error Rk of core is set as 0.8 μm or less, the value of Rpk/Rk is set as to 0.7 or less, will be inclined
State Rsk is set as bearing, average mountain height Rpm is set as to 0.5 μm or less, root mean square slope R Δ q is set as 10 ° or less, pushes up mountain portion
The equispaced S of point is set as also identical in 15 μm of situations below.
Next, by the formed body of obtained watchcase shape, for example, in the case where zirconium oxide is primary raw material,
It is 1350 DEG C or more and 1550 DEG C or less in atmosphere with maximum temperature to be fired, to obtain sintered body.Then, to obtaining
Sintered body carries out roller grinding, to obtain watch shell 1 of the invention.It should be noted that since firing condition can be according to system
Shape, the size of product generate variation, therefore are adjusted as needed to it.
Hereinafter, being specifically explained to the embodiment of the present invention, but the invention is not limited to these embodiments.
Embodiment 1
It is different to the level error Rk of arithmetic average roughness Ra, prominent mountain portion height Rpk and core in chimeric surface
Sample (watch shell) made, and carry out the handling test of The lid component.
Firstly, with zirconium oxide (ZrO2) it is 94.8 mass %, the yttrium oxide (Y as stabilizer2O3) it is 5.2 mass %'s
Mode is weighed, and is mixed, to obtain raw material powder.Then, raw material powder relative to 100 mass %, adds
Add the chromium oxide (Cr as pigment composition of total 4 mass %2O3), iron oxide (Fe2O3) and cobalt oxide (Co3O4).In addition,
It to water is added in these, is crushed, mixed using ball mill, to obtain slurry.
Next, being spray-dried after adding adhesive to the slurry using spray dryer, to obtain
Grain.Then, thermoplastic resin and paraffin is added to obtained particle, is put into mixing machine, is kneaded while heating, from
And obtain base soil.Next, obtained base soil is put into pelletizer, to obtain the particle of the raw material as injection moulding.
Then, which is put into injection machine, obtains the formed body of watchcase shape.
Here, the surface texture of the inner surface for the shaping dies for being set to injection machine, to being rolled after firing
The amount of grinding of cylinder grinding is considered, and the chimeric surface of each sample is made to become arithmetic average roughness Ra shown in table 1, prominent mountain portion
The level error Rk of height Rpk and core.
Next, being fired in an atmosphere with 1500 DEG C of maximum temperature to the formed body of the watchcase shape, table is obtained
The sintered body of hull shape.Then, roller grinding is carried out to obtained sintered body, to obtain each sample.
Then, for obtained each sample, using the surface roughness meter of contact, based on JIS B0601 (2001) with
And JIS B 0671-2 (2002), carry out arithmetic average roughness Ra in chimeric surface, prominent mountain portion height Rpk, core
The measurement of level error Rk.It if measured length is 0.8mm, boundary value 1.0mm, and is 2 μm by probe radius as determination condition
The scanning speed of probe be set as 1mm/ seconds, measured in chimeric surface at three and calculate its average value.
Next, carrying out the handling test of The lid component using each sample.Firstly, as The lid component, using with each sample
The The lid component of the chimeric stainless steel of chimeric surface.Next, being closed machine using commercially available The lid component, 10 lids are carried out to each sample
The handling of component.At this point, using pull and push dynamometer, load σ 0 and the 10th time required installation when to first time installation The lid component
Required load σ 1 is measured when The lid component.Then, the reduced rate of required load is calculated according to load σ 0 and load σ 1
Δ σ (%)=(σ 0- σ 1)/σ 0 × 100.Then, successively each sample is arranged from the lower sample of reduced rate Δ σ of required load
Sequence.That is, the reduced rate Δ σ of required load minimum sample is first, the highest sample of reduced rate Δ σ of required load is most
Last bit.Moreover, being shown below situation: the sequence of the reduced rate Δ σ of required load is higher, even if the dress of The lid component is then repeated
It unloads, chimeric surface will not be worn, and be able to maintain that the adaptation of chimeric surface and The lid component.
It shows the result in table 1.
[table 1]
As shown in table 1, the sequence of the reduced rate Δ σ of the required load of sample No.3~6 is higher.According to the result it is found that
In chimeric surface, though if arithmetic average roughness Ra be 0.6 μm hereinafter, and prominent mountain portion height Rpk be 0.9 μm hereinafter, if
The handling of The lid component are repeated, also can chronically maintain waterproofness, dust tightness.
In addition, sample No.4~6, compared with sample No.3, the sequence of the reduced rate Δ σ of required load is higher.According to the knot
Fruit it is found that in chimeric surface, if the level error Rk of core be 0.8 μm hereinafter, if can maintain waterproofness, dust-proof longerly
Property.
Moreover, sample No.5 and 6, compared with sample No.4, the sequence of the reduced rate Δ σ of required load is higher.According to this
As a result it is found that in chimeric surface, if the ratio between the level error Rk and prominent mountain portion height Rpk of core Rpk/Rk be 0.7 hereinafter, if
Waterproofness, dust tightness can be maintained further longlyer.
Embodiment 2
Next, being produced in chimeric surface, the positive and negative different sample of skewness Rsk, and carry out the handling test of The lid component.
It should be noted that considering, being arranged to the amount of grinding for carrying out roller grinding after firing as production method
In the surface texture of the inner surface of the shaping dies of injection machine, in addition to so that the chimeric surface of each sample becomes shown in table 2
Other than the mode of skewness Rsk changes, using method identical with the production method of sample No.6 of embodiment 1.It needs
Bright, sample No.7 is identical as the sample No.6 of embodiment 1.
Then, for obtained each sample, determine skewness Rsk in chimeric surface, but about determination condition then with implementation
Example 1 is identical.In addition, the handling test of The lid component is carried out using method same as Example 1.
It shows the result in table 2.It should be noted that the sequence of the reduced rate Δ σ of required load is only by sample shown in table 2
Product are compared and are ranked up.
[table 2]
As shown in table 2, compared with sample No.7, the reduced rate Δ σ of the required load of sample No.8 is lower.According to the result
It is found that waterproofness, dust tightness can be maintained further longlyer if skewness Rsk is negative.
Embodiment 3
Next, the sample different to average mountain height Rpm makes, and carries out the dress of The lid component in chimeric surface
Unload test.
It should be noted that considering, being arranged to the amount of grinding for carrying out roller grinding after firing as production method
In the surface texture of the inner surface of the shaping dies of injection machine, in addition to so that the chimeric surface of each sample becomes shown in table 3
Other than the mode of average mountain height Rpm changes, using method identical with the production method of sample No.8 of embodiment 2.
It should be noted that sample No.9 is identical as the sample No.8 of embodiment 2.
Then, for obtained each sample, average mountain height Rpm is determined in chimeric surface, but then about determination condition
It is same as Example 1.In addition, the handling test of The lid component is carried out using method same as Example 1.
It shows the result in table 3.It should be noted that the sequence of the reduced rate Δ σ of required load is only by sample shown in table 3
Product are compared and are ranked up.
[table 3]
As shown in table 3, compared with sample No.9, the reduced rate Δ σ of the required load of sample No.10 and No.11 is lower.
According to the result it is found that if average mountain height Rpm be 0.5 μm hereinafter, if can maintain waterproofness, dust-proof further longlyer
Property.
Embodiment 4
Next, the sample different to root mean square slope R Δ q makes, and carries out the dress of The lid component in chimeric surface
Unload test.
It should be noted that considering, being arranged to the amount of grinding for carrying out roller grinding after firing as production method
In the surface texture of the inner surface of the shaping dies of injection machine, in addition to so that the chimeric surface of each sample becomes shown in table 4
Other than the mode of root mean square slope R Δ q changes, using side identical with the production method of sample No.11 of embodiment 3
Method.It should be noted that sample No.15 is identical as the sample No.11 of embodiment 3.
Then, for obtained each sample, root mean square slope R Δ q is determined in chimeric surface, but then about determination condition
It is same as Example 1.In addition, the handling test of The lid component is carried out using method same as Example 1.
It shows the result in table 4.It should be noted that the sequence of the reduced rate Δ σ of required load is only by sample shown in table 4
Product are compared and are ranked up.
[table 4]
As shown in table 4, compared with sample No.15, the reduced rate Δ σ of the required load of sample No.12~14 is lower.According to
The result it is found that if root mean square slope R Δ q be 10 ° hereinafter, if can maintain waterproofness, dust tightness further longlyer.
Embodiment 5
Next, the sample different to the equispaced S on the mountain portion vertex in chimeric surface makes, and carry out The lid component
Handling test.
It should be noted that considering, being arranged to the amount of grinding for carrying out roller grinding after firing as production method
In the surface texture of the inner surface of the shaping dies of injection machine, in addition to so that the chimeric surface of each sample becomes shown in table 5
Other than the mode of the equispaced S on mountain portion vertex changes, using identical as the production method of sample No.12 of embodiment 4
Method.It should be noted that sample No.19 is identical as the sample No.12 of embodiment 4.
Then, for obtained each sample, it is based on JIS B 0601 (1994), mountain portion vertex is determined in chimeric surface
Equispaced S, but it is then same as Example 1 about determination condition.In addition, the handling test of The lid component uses and 1 phase of embodiment
Same method carries out.
It shows the result in table 5.It should be noted that the sequence of the reduced rate Δ σ of required load is only by sample shown in table 5
Product are compared and are ranked up.
[table 5]
As shown in table 5, compared with sample No.19, the reduced rate Δ σ of the required load of sample No.16~18 is lower.According to
The result it is found that if the equispaced S on mountain portion vertex be 15 μm hereinafter, if can maintain waterproofness, dust-proof further longlyer
Property.
Description of symbols:
1: watch shell
2: chimeric surface
3: groove portion
4: through hole.
Claims (8)
1. a kind of watch shell, wherein
The watch shell is made of ceramics, and has the chimeric surface opposed with chimeric The lid component,
The arithmetic average roughness Ra that the slave roughness curve of the chimeric surface is found out is 0.6 μm hereinafter, and the chimeric surface
The protrusion mountain portion height Rpk that finds out of slave roughness curve be 0.9 μm or less.
2. watch shell according to claim 1, wherein
The level error Rk for the core that the slave roughness curve of the chimeric surface is found out is 0.8 μm or less.
3. watch shell according to claim 1 or 2, wherein
The ratio between the level error Rk for the core that the slave roughness curve of the chimeric surface is found out and the prominent mountain portion height Rpk
Rpk/Rk is 0.7 or less.
4. watch shell according to any one of claim 1 to 3, wherein
The skewness Rsk that the slave roughness curve of the chimeric surface is found out is negative.
5. watch shell according to any one of claim 1 to 4, wherein
The average mountain height Rpm that the slave roughness curve of the chimeric surface is found out is 0.5 μm or less.
6. watch shell according to any one of claim 1 to 5, wherein
The root mean square slope R Δ q of the chimeric surface is 10 ° or less.
7. watch shell according to any one of claim 1 to 6, wherein
The equispaced S on the mountain portion vertex that the slave roughness curve of the chimeric surface is found out is 15 μm or less.
8. watch shell according to any one of claim 1 to 7, wherein
The ceramics are zirconium oxide ceramics.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-231463 | 2016-11-29 | ||
| JP2016231463 | 2016-11-29 | ||
| PCT/JP2017/042815 WO2018101332A1 (en) | 2016-11-29 | 2017-11-29 | Timepiece case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109997085A true CN109997085A (en) | 2019-07-09 |
| CN109997085B CN109997085B (en) | 2021-12-24 |
Family
ID=62242559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780073184.6A Active CN109997085B (en) | 2016-11-29 | 2017-11-29 | Watch case |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3550383B1 (en) |
| JP (1) | JP6419391B2 (en) |
| CN (1) | CN109997085B (en) |
| WO (1) | WO2018101332A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114126784A (en) * | 2019-07-25 | 2022-03-01 | 京瓷株式会社 | Forming die and manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021020502A1 (en) * | 2019-07-31 | 2021-02-04 | 京セラ株式会社 | Gas nozzle and plasma processing device using same |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3550383A4 (en) | 2020-07-08 |
| JP6419391B2 (en) | 2018-11-07 |
| CN109997085B (en) | 2021-12-24 |
| WO2018101332A1 (en) | 2018-06-07 |
| EP3550383A1 (en) | 2019-10-09 |
| JPWO2018101332A1 (en) | 2018-12-06 |
| EP3550383B1 (en) | 2024-05-15 |
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