CN203063169U - Die of phenolic aldehyde pistons - Google Patents
Die of phenolic aldehyde pistons Download PDFInfo
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- CN203063169U CN203063169U CN 201320059478 CN201320059478U CN203063169U CN 203063169 U CN203063169 U CN 203063169U CN 201320059478 CN201320059478 CN 201320059478 CN 201320059478 U CN201320059478 U CN 201320059478U CN 203063169 U CN203063169 U CN 203063169U
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- phenolic aldehyde
- piston
- lower mold
- die
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Abstract
The utility model provides a die of phenolic aldehyde pistons, and belongs to the technical field of dies. The die solves the problem that the quality of the existing finished phenolic aldehyde piston is poor. The die of the phenolic aldehyde pistons comprises an upper die body and a lower die body, wherein forming cavities for forming the phenolic aldehyde pistons are formed between the upper die body and the lower die body after the upper die body is buckled with the lower die body; male dies matched with inner cavities of the phenolic aldehyde pistons are arranged on the upper die body; female dies matched with the outer sides of the phenolic aldehyde pistons are arranged on the lower die body; first material separation pieces capable of separating the phenolic aldehyde pistons attached on the male dies are arranged on the male dies; second material separation pieces capable of separating the phenolic aldehyde pistons attached in the female dies are arranged at the female dies; and a plurality of heating holes are formed in the upper die body and the lower die body. The heating holes are formed in the die of the phenolic aldehyde pistons, so that the die is heated only by directly inserting electrical bars into the heating holes, and is convenient to use; the phenolic aldehyde pistons can be separated from the die smoothly by the first material separation pieces and the second material separation pieces, so that the phenolic aldehyde pistons are prevented from being attached on the die effectively; and the die release stability is high.
Description
Technical field
The utility model relates to a kind of mould, particularly the mould of phenolic aldehyde piston.
Background technology
Piston at high temperature, high pressure, at a high speed, work under the condition of insufficient lubrication.Piston directly contacts with high-temperature gas, and transient temperature can reach more than the 2500K, and therefore, it is serious to be heated, and radiating condition is very poor, so temperature is very high during pistons work, the top is up to 600～700K, and Temperature Distribution is very inhomogeneous; It is very big that top land bears gas pressure, expansion space stroke pressure maximum particularly, and gasoline engine is up to 3～5MPa, and diesel engine is up to 6～9MPa, and this just makes piston produce to impact, and bears the effect of lateral pressure; (8～12m/s) move back and forth piston, and speed constantly changing, and this has just produced very big inertia force, makes piston be subjected to very big additional load with very high speed in cylinder.Piston is worked under this harsh conditions, can produce distortion and accelerated wear test, also can produce additional load and thermal stress, is subjected to the chemical attack effect of combustion gas simultaneously.
For the demand people that reach above-mentioned workplace have designed the phenolic aldehyde piston, but existing phenolic aldehyde piston is one-time formed by mould, and its every index coefficient is on the low side.Its publication number of Chinese patent CN1464207A provide a kind of " production method of car brake composite material piston " it be raw material with the modified silicon ash mineral wool, be auxiliary material with phenolic resins, mix oven dry according to a certain percentage, utilize the mould heat pressure base, be shaped through machining again.Particularly, aforementioned production method may further comprise the steps: it is raw material that the modified silicon ash mineral wool is chosen in the mixing oven dry of 1. selecting materials by a certain percentage, the row filter of going forward side by side; Choosing phenolic resins again is auxiliary material; Raw material is pressed 76-78%, and auxiliary material is pressed 22-24%, and pour in the batch mixer and mix, oven dry again, bake out temperature is 50 ℃; 2. utilize mould heat pressure to make between the mold and bed die of compound dress mould in mould of blank with oven dry, to last heating plate and the heating of following heating plate of mould, heating-up temperature is 165-175 ℃, can make the blank depanning of piston again after the compacting again; 3. through blank machined again after check of machined shaping piston, mainly be cylindrical grinding, check is at last put in storage.As can be seen, be directly with a compression moulding of raw material, because its end product quality of insulation processing is not relatively poor in the said method.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at prior art, and the mould of stable, the simple in structure phenolic aldehyde piston of a kind of demoulding is provided.
The purpose of this utility model can realize by following technical proposal: a kind of mould of phenolic aldehyde piston, comprise upper die body and lower mold body, described upper die body and lower mold body fasten the forming cavity that the back between is formed for moulding phenolic aldehyde piston, it is characterized in that, has the punch that is complementary with the phenolic aldehyde piston cavity on the described upper die body, has the die that is complementary with the phenolic aldehyde piston outside on the described lower mold body, have on the described punch and can take off materials and parts one with what adhere to that thereon phenolic aldehyde piston separates, described die place has and can take off materials and parts two with what adhere to that within it phenolic aldehyde piston separates, all has some bottoming holes on described upper die body and the lower mold body.
Mould is put into the bottoming hole place with the electrical heating bar before using, when upper die body and lower mold body all are heated to uniform temperature, the phenolic aldehyde piston blank of cup-shaped is put between upper die body and the lower mold body, will be positioned at phenolic aldehyde piston blank moulding between the two after upper die body and lower mold body fasten.In the knockout course, phenolic aldehyde piston inboard may stick on the punch, and the phenolic aldehyde piston outside may stick on the die.At this moment, by taking off materials and parts one phenolic aldehyde piston inboard is separated smoothly with punch, by taking off materials and parts two the phenolic aldehyde piston outside is separated with die is smooth and easy.
In the mould of above-mentioned phenolic aldehyde piston, described punch is cylindric, the described materials and parts one that take off comprise the directed cavity of upper die body inside and are positioned at stripper plate one, the knockout pin one of directed cavity, described stripper plate one is complementary with directed cavity, above-mentioned knockout pin one upper end and stripper plate one are connected, knockout pin one lower end is positioned at punch, and can stretch out punch when above-mentioned stripper plate one moves down above-mentioned knockout pin one lower end.
By the cooperating of directed cavity and stripper plate one, can make the straight upper and lower translation of knockout pin one in the knockout course, knockout pin one is along with stretching out punch roof pressure phenolic aldehyde piston after moving down, and stable separates the phenolic aldehyde piston with punch.
For simplified structure, taking off materials and parts one is that a knockout pin that is positioned at punch also is feasible, and upper die body is stretched out in the knockout pin outer end.
In the mould of above-mentioned phenolic aldehyde piston, described lower mold body bottom has demoulding chamber, the described materials and parts two that take off comprise stripper plate two and knockout pin two in the demoulding chamber, described stripper plate two is complementary with demoulding chamber, above-mentioned knockout pin two lower ends are connected on the stripper plate two, knockout pin two upper ends are passed lower mold body and are positioned at place, above-mentioned die bottom, move knockout pin two upper ends are stretched in the die on above-mentioned stripper plate two.
By the cooperating of demoulding chamber and stripper plate two, can make the straight upper and lower translation of knockout pin two in the knockout course, knockout pin two along with on stretch out die roof pressure phenolic aldehyde piston after moving, stable separates the phenolic aldehyde piston with die.
For simplified structure, taking off materials and parts two is that a knockout pin that is positioned at die also is feasible, and lower mold body is stretched out in the knockout pin lower end.
In the mould of above-mentioned phenolic aldehyde piston, be fixed with 2-8 punch on the described upper die body, have die identical with above-mentioned punch quantity and that the position is corresponding on the described lower mold body.
Can a plurality of phenolic aldehyde pistons of one-shot forming after upper and lower mould fastens.
In the mould of above-mentioned phenolic aldehyde piston, described die bottom has annular groove, and above-mentioned knockout pin two is positioned at the annular groove place.
Phenolic aldehyde piston after the moulding forms the rib that annular is protruded at the sealing end of its tubular.
In the mould of above-mentioned phenolic aldehyde piston, described each die place all has two knockout pins two.
By two knockout pins two the phenolic aldehyde piston that is positioned at die is broken away from smoothly.
In the mould of above-mentioned phenolic aldehyde piston, be fixed with guide rod on the described stripper plate one, have guide hole on the described lower mold body, above-mentioned guide rod is positioned at the guide hole place.
Make between upper die body and the lower mold body by guide rod can not to be offset, guarantee stable being fastened on the lower mold body of upper die body.
Below explanation utilizes the preparation method of above-mentioned Mold Making phenolic aldehyde piston, and this method may further comprise the steps:
A, buy cake: be cup-shaped biscuit with granular phenolic aldehyde by stamped, then biscuit be heated to 100-240 ℃;
B, mould and die preheating: upper die body and lower mold body all are heated to 100-240 ℃, then 100-240 ℃ above-mentioned biscuit are put between upper die body and the lower mold body;
C, matched moulds: upper die body and lower mold body are fastened, then mould is incubated 100-150 seconds, obtain the phenolic aldehyde piston blank after taking upper die body and lower mold body apart;
D, baking: the phenolic aldehyde piston blank under 150-200 ℃ temperature, through baking in 10-15 hours, is obtained the phenolic aldehyde piston blank after the baking.
The phenolic aldehyde particle obtains being the biscuit of tubular and end sealing after punching press.Biscuit is heated to 100-240 ℃, and simultaneously, upper die body, lower mold body all are heated to 100-240 ℃, and above-mentioned 100-240 ℃ biscuit is put between upper die body and the lower mold body, the opening of biscuit and punch over against.
Then, upper die body and lower mold body are fastened, the biscuit between upper die body and lower mold body is formed as the phenolic aldehyde piston blank.To upper die body, lower mold body insulation 100-150 seconds, at last blank is toasted behind the matched moulds, obtain the phenolic aldehyde piston that intensity is higher, be difficult for embrittlement.
In the preparation method of above-mentioned phenolic aldehyde piston, adopt 5-8 tons pressure that the phenolic aldehyde particle is compressed to the cup-shaped biscuit at common punch press in the described steps A.
Here adopt common die splendid attire phenolic aldehyde particulate material.By obtaining the biscuit of cup-shaped behind the common punch ram.
In the preparation method of above-mentioned phenolic aldehyde piston, adopt electrically heated method that upper die body and lower mold body are heated to 100-240 ℃ among the described step B.
In the preparation method of above-mentioned phenolic aldehyde piston, after upper die body and lower mold body are heated to 100-240 ℃ among the described step B it is incubated 5-15 minute.Make biscuit have time enough to be placed between upper die body and the lower mold body in the insulating process, thereby guarantee that upper die body, lower mold body and biscuit are all in range of set temperature in the matched moulds process.
In the preparation method of above-mentioned phenolic aldehyde piston, among the described step C mould is positioned over the pressure that passes through 50-70 tons on the punch press upper die body and lower mold body are fastened.
In the preparation method of above-mentioned phenolic aldehyde piston, after the phenolic aldehyde piston at the uniform velocity being heated to 150-170 ℃ in 1.5-2 hours, under this temperature, be incubated 1.5-2 hours among the described step D, and then after the phenolic aldehyde piston at the uniform velocity being heated to 180-200 ℃ in 1-2 hours, under this temperature, be incubated 4-5.5 hours, made the phenolic aldehyde piston at the uniform velocity be down to room temperature finally by 2-3.5 hours.Be incubated again after the phenolic aldehyde piston at the uniform velocity heated up, the phenolic aldehyde piston at the uniform velocity be down to room temperature after promoting temperature after the insulation again, thereby changed the internal structure of phenolic aldehyde, make phenolic aldehyde piston intensity higher, be difficult for embrittlement.
Compared with prior art, have bottoming hole on the mould of this phenolic aldehyde piston, directly electrical bar is filled in bottoming hole during to mold heated and get final product, do not need to place the heating member place to heat separately in addition upper die body and lower mold body, easy to use.Simultaneously, by taking off materials and parts one and taking off materials and parts two the phenolic aldehyde piston is separated smoothly with mould, effectively avoided the phenolic aldehyde piston to stick on the mould, demoulding stability is high.
In addition, the preparation method of this phenolic aldehyde piston directly to upper die body and lower mold body heating, after the moulding of phenolic aldehyde piston blank, by baking and thermal insulation, has further promoted the internal performance of phenolic aldehyde piston, and not only intensity is higher, and is difficult for embrittlement.Obviously, not only easy to implement, and also yield rate is higher.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of written or printed documents phenolic aldehyde piston.
Fig. 2 is the sectional structure schematic diagram of the mould of this phenolic aldehyde piston when separating.
Fig. 3 is the sectional structure schematic diagram of the mould of this phenolic aldehyde piston when fastening.
Among the figure, 1, upper die body; 1a, punch; 1b, directed cavity; 2, lower mold body; 2a, die; 2b, demoulding chamber; 2c, annular groove; 3, stripper plate one; 4, knockout pin one; 5, stripper plate two; 6, knockout pin two; 7, guide rod; 8, bottoming hole.
The specific embodiment
Embodiment one
As shown in Figures 2 and 3, the mould of this phenolic aldehyde piston comprises upper die body 1 and lower mold body 2, and upper die body 1 fastens the forming cavity that the back between is formed for moulding phenolic aldehyde piston with lower mold body 2.Has the punch 1a that is complementary with the phenolic aldehyde piston cavity on the upper die body 1, has the die 2a that is complementary with the phenolic aldehyde piston outside on the lower mold body 2, have on the punch 1a and can take off materials and parts one with what adhere to that thereon phenolic aldehyde piston separates, die 2a place has and can take off materials and parts two with what adhere within it phenolic aldehyde piston separation.All have some bottoming holes 8 on upper die body 1 and the lower mold body 2.
In addition, have annular groove 2c in die 2a bottom, knockout pin 26 is positioned at annular groove 2c place.In the present embodiment, each die 2a place all has two knockout pins 26.
Be fixed with guide rod 7 on the stripper plate 1, have guide hole on the lower mold body 2, guide rod 7 is positioned at the guide hole place.
As Fig. 1 and Fig. 2 and shown in Figure 3, the preparation method of this phenolic aldehyde piston may further comprise the steps:
A, buy cake: be cup-shaped biscuit with granular phenolic aldehyde by stamped, in the present embodiment, adopt 5 tons pressure that the phenolic aldehyde particle is compressed to the cup-shaped biscuit at common punch press.Then, biscuit is heated to 100 ℃.
B, mould and die preheating: upper die body 1 and lower mold body 2 all are heated to 100 ℃, in the present embodiment, adopt electrically heated method that upper die body 1 and lower mold body 2 are heated to 100 ℃.Then, 100 ℃ above-mentioned biscuit is put between upper die body 1 and the lower mold body 2.In the present embodiment, after upper die body 1 and lower mold body 2 are heated to 100 ℃ it is incubated 5 minutes.
C, matched moulds: mould is placed on the pressure that passes through 50 tons on the punch press upper die body 1 and lower mold body 2 are fastened.Then, mould is incubated 100 seconds, obtains the phenolic aldehyde piston blank after taking upper die body 1 and lower mold body 2 apart.
D, baking: insulation 1.5 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 150 ℃ in 1.5 hours, and then insulation 4 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 180 ℃ in 1 hour, made the phenolic aldehyde piston at the uniform velocity be down to room temperature finally by 2 hours.
In the process of above-mentioned making phenolic aldehyde piston, make upper die body 1 and lower mold body 2 stable snapping together by guide rod 7.In the form removal process, stripper plate 1 drives knockout pins 1 and moves down, and stretches out the phenolic aldehyde piston that the knockout pin 1 of punch 1a will stick on the punch 1a and backs down, and phenolic aldehyde piston inboard is separated smoothly with punch 1a.Meanwhile, stripper plate 25 drives on the knockout pins 26 and moves, and stretches in the phenolic aldehyde piston that the knockout pin 26 in the die 2a will stick on the die 2a and backs down, and the phenolic aldehyde piston outside is separated smoothly with die 2a.
Embodiment two
Present embodiment is basic identical with the scheme of embodiment one, and different place is:
A, buy cake: be cup-shaped biscuit with granular phenolic aldehyde by stamped, in the present embodiment, adopt 8 tons pressure that the phenolic aldehyde particle is compressed to the cup-shaped biscuit at common punch press.Then, biscuit is heated to 240 ℃.
B, mould and die preheating: upper die body 1 and lower mold body 2 all are heated to 240 ℃, in the present embodiment, adopt electrically heated method that upper die body 1 and lower mold body 2 are heated to 240 ℃.Then, 240 ℃ above-mentioned biscuit is put between upper die body 1 and the lower mold body 2.In the present embodiment, after upper die body 1 and lower mold body 2 are heated to 240 ℃ it is incubated 15 minutes.
C, matched moulds: mould is placed on the pressure that passes through 70 tons on the punch press upper die body 1 and lower mold body 2 are fastened.Then, mould is incubated 150 seconds, obtains the phenolic aldehyde piston blank after taking upper die body 1 and lower mold body 2 apart.
D, baking: insulation 2 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 170 ℃ in 2 hours, and then insulation 5.5 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 200 ℃ in 2 hours, made the phenolic aldehyde piston at the uniform velocity be down to room temperature finally by 3.5 hours.
Embodiment three
Present embodiment is basic identical with the scheme of embodiment one, and different place is:
A, buy cake: be cup-shaped biscuit with granular phenolic aldehyde by stamped, in the present embodiment, adopt 6 tons pressure that the phenolic aldehyde particle is compressed to the cup-shaped biscuit at common punch press.Then, biscuit is heated to 200 ℃.
B, mould and die preheating: upper die body 1 and lower mold body 2 all are heated to 200 ℃, in the present embodiment, adopt electrically heated method that upper die body 1 and lower mold body 2 are heated to 200 ℃.Then, 200 ℃ above-mentioned biscuit is put between upper die body 1 and the lower mold body 2.In the present embodiment, after upper die body 1 and lower mold body 2 are heated to 200 ℃ it is incubated 10 minutes.
C, matched moulds: mould is placed on the pressure that passes through 60 tons on the punch press upper die body 1 and lower mold body 2 are fastened.Then, mould is incubated 120 seconds, obtains the phenolic aldehyde piston blank after taking upper die body 1 and lower mold body 2 apart.
D, baking: insulation 1.6 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 160 ℃ in 1.6 hours, and then insulation 5 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 190 ℃ in 1.5 hours, made the phenolic aldehyde piston at the uniform velocity be down to room temperature finally by 3 hours.
Embodiment four
Present embodiment is basic identical with the scheme of embodiment one, and different place is:
A, buy cake: be cup-shaped biscuit with granular phenolic aldehyde by stamped, in the present embodiment, adopt 7 tons pressure that the phenolic aldehyde particle is compressed to the cup-shaped biscuit at common punch press.Then, biscuit is heated to 180 ℃.
B, mould and die preheating: upper die body 1 and lower mold body 2 all are heated to 180 ℃, in the present embodiment, adopt electrically heated method that upper die body 1 and lower mold body 2 are heated to 180 ℃.Then, 180 ℃ above-mentioned biscuit is put between upper die body 1 and the lower mold body 2.In the present embodiment, after upper die body 1 and lower mold body 2 are heated to 180 ℃ it is incubated 9 minutes.
C, matched moulds: mould is placed on the pressure that passes through 55 tons on the punch press upper die body 1 and lower mold body 2 are fastened.Then, mould is incubated 130 seconds, obtains the phenolic aldehyde piston blank after taking upper die body 1 and lower mold body 2 apart.
D, baking: insulation 1.8 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 165 ℃ in 1.7 hours, and then insulation 4.5 hours under this temperature after the phenolic aldehyde piston at the uniform velocity being heated to 195 ℃ in 1.7 hours, made the phenolic aldehyde piston at the uniform velocity be down to room temperature finally by 2.3 hours.
Claims (7)
1. the mould of a phenolic aldehyde piston, comprise upper die body (1) and lower mold body (2), described upper die body (1) fastens the forming cavity that the back between is formed for moulding phenolic aldehyde piston with lower mold body (2), it is characterized in that, has the punch (1a) that is complementary with the phenolic aldehyde piston cavity on the described upper die body (1), has the die (2a) that is complementary with the phenolic aldehyde piston outside on the described lower mold body (2), have on the described punch (1a) and can take off materials and parts one with what adhere to that thereon phenolic aldehyde piston separates, described die (2a) is located to have and can be taken off materials and parts two with what adhere to that within it phenolic aldehyde piston separates, all has some bottoming holes (8) on described upper die body (1) and the lower mold body (2).
2. the mould of phenolic aldehyde piston according to claim 1, it is characterized in that, described punch (1a) is cylindric, describedly take off the stripper plate one (3) that materials and parts one comprise the directed cavity (1b) that upper die body (1) is inner and are positioned at directed cavity (1b), knockout pin one (4), described stripper plate one (3) is complementary with directed cavity (1b), above-mentioned knockout pin one (4) upper end is connected with stripper plate one (3), knockout pin one (4) lower end is positioned at punch (1a), and can stretch out punch (1a) when above-mentioned stripper plate one (3) moves down above-mentioned knockout pin one (4) lower end.
3. the mould of phenolic aldehyde piston according to claim 1, it is characterized in that, described lower mold body (2) bottom has demoulding chamber (2b), the described materials and parts two that take off comprise stripper plate two (5) and knockout pin two (6) in the demoulding chamber (2b), described stripper plate two (5) is complementary with demoulding chamber (2b), above-mentioned knockout pin two (6) lower ends are connected on the stripper plate two (5), knockout pin two (6) upper ends are passed lower mold body (2) and are positioned at place, above-mentioned die (2a) bottom, move knockout pin two (6) upper ends are stretched in the die (2a) on above-mentioned stripper plate two (5).
4. according to the mould of claim 1 or 2 or 3 described phenolic aldehyde pistons, it is characterized in that, be fixed with 2-8 punch (1a) on the described upper die body (1), have die (2a) identical with above-mentioned punch (1a) quantity and that the position is corresponding on the described lower mold body (2).
5. the mould of phenolic aldehyde piston according to claim 3 is characterized in that, described die (2a) bottom has annular groove (2c), and above-mentioned knockout pin two (6) is positioned at annular groove (2c) and locates.
6. the mould of phenolic aldehyde piston according to claim 5 is characterized in that, described each die (2a) locates all to have two knockout pins two (6).
7. the mould of phenolic aldehyde piston according to claim 2 is characterized in that, is fixed with guide rod (7) on the described stripper plate one (3), and described lower mold body has guide hole on (2), and above-mentioned guide rod (7) is positioned at the guide hole place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059478 CN203063169U (en) | 2013-01-30 | 2013-01-30 | Die of phenolic aldehyde pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059478 CN203063169U (en) | 2013-01-30 | 2013-01-30 | Die of phenolic aldehyde pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203063169U true CN203063169U (en) | 2013-07-17 |
Family
ID=48761992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320059478 Withdrawn - After Issue CN203063169U (en) | 2013-01-30 | 2013-01-30 | Die of phenolic aldehyde pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203063169U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072301A (en) * | 2013-01-30 | 2013-05-01 | 台州万洲机械有限公司 | Die of phenolic piston and manufacture method of phenolic piston |
| CN108687942A (en) * | 2018-05-28 | 2018-10-23 | 浙江泰华集成家居科技有限公司 | The shaping mould of gypsum lampshade |
-
2013
- 2013-01-30 CN CN 201320059478 patent/CN203063169U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072301A (en) * | 2013-01-30 | 2013-05-01 | 台州万洲机械有限公司 | Die of phenolic piston and manufacture method of phenolic piston |
| CN108687942A (en) * | 2018-05-28 | 2018-10-23 | 浙江泰华集成家居科技有限公司 | The shaping mould of gypsum lampshade |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130717 Effective date of abandoning: 20150225 |
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| RGAV | Abandon patent right to avoid regrant |