CN218593641U - Non-crystal point film processing equipment - Google Patents
Non-crystal point film processing equipment Download PDFInfo
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- CN218593641U CN218593641U CN202223191936.6U CN202223191936U CN218593641U CN 218593641 U CN218593641 U CN 218593641U CN 202223191936 U CN202223191936 U CN 202223191936U CN 218593641 U CN218593641 U CN 218593641U
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- metal powder
- sintered body
- powder sintered
- hole
- film processing
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- 239000013078 crystal Substances 0.000 title claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 239000000843 powder Substances 0.000 claims abstract description 55
- 239000012530 fluid Substances 0.000 claims abstract description 46
- 239000000155 melt Substances 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims description 25
- 239000010408 film Substances 0.000 claims description 19
- 239000010409 thin film Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 11
- 229920000098 polyolefin Polymers 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 6
- 239000011342 resin composition Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920005672 polyolefin resin Polymers 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000004711 α-olefin Substances 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- -1 propylene-ethylene Chemical group 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N ethyl ethylene Natural products CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of film processing, in particular to a non-crystal point film processing device, which comprises a tank body and a metal powder sintered body, wherein a fluid introduction hole, a filter cavity and a fluid forming hole are arranged in the tank body, and the fluid introduction hole, the filter cavity and the fluid forming hole are used for molten mass to pass through and are sequentially communicated; the metal powder sintered body is arranged in the filter cavity, and can filter out impurities in the melt when the melt passes through and uniformly disperse the melt.
Description
Technical Field
The utility model belongs to the technical field of the film processing technique and specifically relates to a no brilliant some film processing equipment.
Background
In the production process of a film, an optical film for a liquid crystal display or the like is generally produced by a melt extrusion method; in the melt extrusion method, a thermoplastic resin such as a polymer which has been melted by an extruder is supplied to a filtering device to remove impurities, and then extruded into a film from a die having a slit, and next, the extruded film-shaped molten polymer is supplied to a rotating cooling roll, cooled and solidified, and then rolled by a rolling device, and finally wound into a roll; such films are widely used on the screens of electrical appliances.
In the case where a foreign substance such as a gel-like polymer carbide or dust is contained in a resin composition when a film is produced, when the resin composition is formed into a film, since minute defects are generated on the surface and the appearance of the formed film is deteriorated, it is necessary to remove impurities to a certain extent.
SUMMERY OF THE UTILITY MODEL
To the deficiency that prior art exists, the utility model aims to provide a do not have brilliant point film processing equipment for produce the flawless film in surface.
In view of the above, the present invention provides a crystal-point-free thin film processing apparatus, which comprises a tank body having a fluid introduction hole, a filter cavity and a fluid forming hole, wherein the fluid introduction hole, the filter cavity and the fluid forming hole are sequentially communicated for passing a melt; and a metal powder sintered body provided inside the can body and capable of filtering and dispersing the melt when the melt passes through the metal powder sintered body.
In the above technical solution, further, the metal powder sintered body is placed in a filtering cavity, and the molten mass flows from the center of the filtering cavity to the inner wall of the filtering cavity in the filtering cavity for filtering and dispersing.
In the above technical solution, further, the metal powder sintered body is disposed in the filter cavity in a cylindrical structure, and the inside of the metal powder sintered body is communicated with the fluid introduction hole and the outside thereof is communicated with the fluid molding hole.
In the above technical solution, further, a flow guide cone is disposed at an end of the filter cavity close to the fluid forming hole, and the metal powder sintered body and the flow guide cone are installed in the filter cavity in a matching manner.
In the above technical solution, further, a shunt tube is arranged in the filter cavity, one end of the shunt tube is communicated with the fluid introduction hole, the other end of the shunt tube is connected with the diversion cone in a matching manner, a path hole for the molten mass to pass through is formed in the peripheral wall of the shunt tube, and the metal powder sintered body is arranged outside the shunt tube at intervals.
In the above technical solution, further, the metal powder sintered body is in a cylindrical structure, one end of the metal powder sintered body is hermetically connected with the flow guide cone, the other end of the metal powder sintered body is hermetically connected with the inner wall of the filter cavity, the interior of the metal powder sintered body is communicated with the fluid introduction hole, and the exterior of the metal powder sintered body is communicated with the fluid forming hole.
In the above technical scheme, further, a central rod is uniformly arranged on the outer wall of the shunt tube in the circumferential direction, and two ends of the central rod are respectively connected with the shunt tube and the metal powder sintered body.
In the above technical solution, the filter further includes a mounting block connecting the shunt tube and the metal powder sintered body, the guide cone, the shunt tube, the metal powder sintered body and the mounting block form an assembly body capable of being assembled independently, and the assembly body can be placed in the filter cavity after assembly.
In the above technical solution, further, the tank body includes a housing, the filter cavity and the fluid forming hole are disposed on the housing, and one side of the filter cavity on the housing is opened; and the end cover is arranged on one side of the end cover, is matched and hermetically connected with the shell and closes the opening of the filter cavity, and the fluid introducing hole is formed in the end cover.
In the above technical solution, further, a tapered pressurizing hole is provided at an input end of the fluid introduction hole, the tapered pressurizing hole being provided coaxially with the fluid introduction hole and having a diameter gradually decreasing in a melt flow direction to coincide with the fluid introduction hole.
The utility model has the advantages that: the utility model discloses a setting up of metal powder sintered body can effectual filtration go out the impurity in the melt to cut the reposition of redundant personnel to the melt, make melt homodisperse, improve its homogeneity, when being convenient for extrude work, the formation of crystal point, defect, stripe on the reduction film improves the quality that generates the film.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic cross-sectional structure of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an embodiment of the present invention;
FIG. 3 is a schematic view of a mounting member according to an embodiment of the present invention;
FIG. 4 is a schematic view of the attachment of a mounting body to an end cap according to an embodiment of the present invention;
labeled in the figure as:
1. a housing; 2. an end cap; 3. a fluid introduction hole; 4. a filter chamber; 5. a fluid forming hole; 6. a shunt tube; 7. a flow guide cone; 8. a metal powder sintered body; 9. a center pole; 10. a bolt; 11. an aluminum gasket; 12. mounting a block; 13. a path hole; 14. a tapered pressure orifice;
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
In the description of the present application, it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and in the case of not making a reverse description, these orientation terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Examples
As shown in fig. 1 and fig. 2, the present embodiment discloses a thin film processing apparatus without crystal point, which in the present embodiment comprises a tank body, wherein the tank body comprises a housing 1, a filter cavity 4 and a fluid forming hole 5 are arranged on the housing 1, and one side of the filter cavity 4 on the housing 1 is open; and the end cover 2 is arranged on one side of the end cover 2, is matched and hermetically connected with the shell 1 and closes the opening of the filter cavity 4, and the fluid introducing hole 3 is formed in the end cover 2.
The end cap 2 is connected to the housing 1 by bolts 10 to form a tank body, and a sealing member is provided between the end cap 2 and the housing 1, and the sealing member is an aluminum gasket 11, and a filler (fluorine-based resin) may be provided for sealing.
A flow guide cone 7 is arranged at one end of the inner wall of the filter cavity 4 close to the fluid forming hole 5, and a conical surface matched with the flow guide cone 7 is formed at one end of the inner wall of the filter cavity 4 close to the fluid forming hole 5.
A flow dividing pipe 6 is arranged in the filter cavity 4, one end of the flow dividing pipe 6 is communicated with the fluid introducing hole 3, the other end of the flow dividing pipe 6 is matched and connected with the flow guiding cone 7, and a path hole 13 for the molten mass to pass through is formed in the outer peripheral wall of the flow dividing pipe 6;
a metal powder sintered body 8 capable of filtering and dispersing the melt as it passes through is provided in the filter chamber 4; the metal powder sintered body 8 is in a cylindrical structure (in other embodiments, a conical structure or the like can be set), is sleeved outside the shunt tube 6 and is arranged at an interval with the shunt tube 6, one end of the filter element is connected with the diversion cone 7 in a sealing way, the other end of the filter element is connected with the inner wall of the filter cavity 4 in a sealing way, the inside of the metal powder sintered body 8 is communicated with the fluid introducing hole 3, and the outside of the metal powder sintered body is communicated with the fluid forming hole 5.
6 outer wall circumference of shunt tubes evenly is provided with well core rod 9, well core rod 9's both ends are connected with shunt tubes 6 and metal powder sintered body 8 respectively, and this well core rod 9's one end is fixed on well core rod 9, and the other end is inconsistent with metal powder sintered body 8.
In the present embodiment, at least one metal powder sintered body is provided; the filtration accuracy of the metal powder sintered body is 1 to 100 μm; the filtration accuracy is a particle diameter at which 95% of the particles are collected when a filtration test is performed in accordance with JIS-B8356; when the filtration accuracy is less than 1 μm, a sufficient amount of molten mass per unit time cannot be filtered without raising the filtration pressure above the allowable pressure of the apparatus; when the filtration accuracy exceeds 100. Mu.m, the removal of foreign matters or the dispersion of each component is insufficient, and the effect of reducing the blemish is insufficient; the filtration accuracy of the metal powder sintered body is most preferably set to 20 to 40 μm.
The melt enters the filter cavity 4 from the fluid inlet hole 3, enters the shunt tube 6, is discharged into the filter element from the path hole 13 of the shunt tube 6, uniformly flows to the metal powder sintered body 8 under the shunt of the central rod 9, is filtered and dispersed by the metal powder sintered body 8, leaves impurities in the metal powder sintered body 8, penetrates through the metal powder sintered body 8, is cut by the metal powder sintered body 8, is shunted to the outside of the metal powder sintered body 8, then flows out to the fluid forming hole 5 through a channel between the diversion cone 7 and the inner wall of the filter cavity 4, is discharged and extruded to form.
In the present embodiment, the melt includes, but is not limited to, polyolefin-based resin compositions;
the polyolefin resin composition can be used by preparing a plurality of polyolefin components having different intrinsic viscosities as a raw material composition and combining them; it is also possible to use polyolefins obtained by polymerizing olefin components to produce polyolefins and then continuously producing polyolefins having different intrinsic viscosities.
The polyolefin contains a plurality of polyolefin components having different intrinsic viscosities; in this example, it is preferable to use a raw material composition containing a plurality of polyolefin components having different intrinsic viscosities, which are directly polymerized by multistage polymerization.
Among these, polyolefins may be exemplified by: propylene homopolymers, propylene-ethylene random copolymers, propylene-ethylene- α -olefin terpolymers, propylene- α -olefin copolymers, propylene-ethylene block copolymers, high density polyethylene, low density polyethylene, ethylene- α -olefin copolymers, butene-1 copolymers, and the like.
In the present example, the impurities filtered by the filter include foreign matters such as a gel-like polymer carbide and dust contained in the polyolefin resin composition, and thus, minute defects generated on the surface when the polyolefin resin composition is formed into a film shape are reduced, and the number of stains is reduced.
Through the arrangement of the metal powder sintered body, impurities in the molten mass can be effectively filtered, the molten mass is cut and shunted, a large-volume assembly in the molten mass is reduced, the uniformity of the molten mass is improved, the extrusion work is facilitated, the formation of crystal points, defects and stripes on the film is reduced, and the quality of the generated film is improved;
and more traditional extrusion device is different, the utility model discloses a thereby outer filtration mode can concentrate the collection inside the metal powder sintered body of tube-shape, the subsequent cleaning work of being convenient for with filtering impurity.
As shown in fig. 3 and 4, the filter chamber 4 further comprises a mounting block 12 for connecting the shunt tube 6 and the metal powder sintered body 8, and the shunt tube 7, the shunt tube 6, the metal powder sintered body 8 and the mounting block 12 form an independently assembled assembly which can be placed in the filter chamber 4 after assembly.
Wherein, the end cap 2 is provided with a groove body matched with the mounting block 12, in this embodiment, one end of the mounting block 12 is inserted into the groove body and is in threaded connection with the end cap 2.
During assembly, the mounting block 12 is screwed on the end cover 2, the bottom of the shunt tube 6 is inserted into the mounting block 12 (in other embodiments, direct fixing can be adopted), then the metal powder sintered body 8 is sleeved, and the flow guide block is connected with the other end of the shunt tube 6 (in other embodiments, a fixing mode can be adopted) to form an assembly body connected with the end cover 2; then an aluminum gasket 11 is sleeved, finally the shell 1 is covered, and the shell 1 and the end cover 2 are fixed through a bolt 10, so that a sealed filter cavity 4 is formed inside the tank body.
The fixed installation of the flow guide block and the flow dividing pipe can ensure the installation precision of the flow guide block; however, the detachable structure is preferable because the metal powder sintered body can be easily detached and cleaned.
The structure is used for assembly, and the assembly is simple and the stability is strong.
A tapered pressurizing hole 14 is provided at an input end of the fluid introducing hole 3, the tapered pressurizing hole 14 being provided coaxially with the fluid introducing hole 3, and having a diameter gradually decreasing in a melt flow direction to coincide with the fluid introducing hole 3; the conical pressurizing hole 14 is arranged, so that pressurizing work is performed during extrusion, extrusion molding is facilitated, and the structure is stable.
While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present application and the claims.
Claims (10)
1. A non-crystal point film processing equipment is characterized in that: comprises that
The tank body is provided with a fluid introduction hole, a filter cavity and a fluid forming hole which are used for the molten mass to pass through and are communicated in sequence;
and a metal powder sintered body provided inside the can body and capable of filtering and dispersing the melt when the melt passes through the metal powder sintered body.
2. The amorphous point-free thin film processing apparatus according to claim 1, wherein: the metal powder sintered body is placed in the filtering cavity, and the molten mass flows from the center of the filtering cavity to the inner wall direction of the filtering cavity in the filtering cavity for filtering and dispersing.
3. The amorphous point-free thin film processing equipment according to claim 1, wherein: the metal powder sintered body is arranged in the filter cavity in a cylindrical structure, the interior of the metal powder sintered body is communicated with the fluid introducing hole, and the exterior of the metal powder sintered body is communicated with the fluid forming hole.
4. The amorphous point-free thin film processing apparatus according to any one of claims 1 to 3, wherein: and a flow guide cone is arranged at one end, close to the fluid forming hole, in the filter cavity, and the metal powder sintered body and the flow guide cone are installed in the filter cavity in a matched mode.
5. The amorphous point-free thin film processing apparatus according to claim 4, wherein: the filter chamber is internally provided with a shunt pipe, one end of the shunt pipe is communicated with a fluid introducing hole, the other end of the shunt pipe is connected with a guide cone in a matching way, the peripheral wall of the shunt pipe is provided with a path hole for a molten mass to pass through, and the metal powder sintered body is arranged outside the shunt pipe at intervals.
6. The amorphous point-free thin film processing apparatus according to claim 4, wherein: the metal powder sintered body is of a cylindrical structure, one end of the metal powder sintered body is hermetically connected with the flow guide cone, the other end of the metal powder sintered body is hermetically connected with the inner wall of the filtering cavity, the interior of the metal powder sintered body is communicated with the fluid introduction hole, and the exterior of the metal powder sintered body is communicated with the fluid forming hole.
7. The amorphous point film processing apparatus according to claim 5, wherein: and the outer wall of the shunt pipe is uniformly provided with a central rod in the circumferential direction, and two ends of the central rod are respectively connected with the shunt pipe and the metal powder sintered body.
8. The amorphous point film processing equipment of claim 5, wherein: the flow guide cone, the flow guide pipe, the metal powder sintered body and the mounting block form an independently assembled assembly body which can be placed in the filter cavity after assembly.
9. The amorphous point-free thin film processing apparatus according to claim 1, wherein: the tank body comprises
The filter cavity and the fluid forming hole are arranged on the shell, and one side of the filter cavity on the shell is opened;
and the end cover is arranged on one side of the end cover, is matched and hermetically connected with the shell and closes the opening of the filter cavity, and the fluid introducing hole is formed in the end cover.
10. The amorphous point-free thin film processing apparatus according to claim 1, wherein: the input end of the fluid introduction hole is provided with a conical pressurizing hole which is arranged coaxially with the fluid introduction hole and whose diameter is gradually reduced in the flow direction of the melt to coincide with the fluid introduction hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223191936.6U CN218593641U (en) | 2022-11-29 | 2022-11-29 | Non-crystal point film processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223191936.6U CN218593641U (en) | 2022-11-29 | 2022-11-29 | Non-crystal point film processing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218593641U true CN218593641U (en) | 2023-03-10 |
Family
ID=85407884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223191936.6U Active CN218593641U (en) | 2022-11-29 | 2022-11-29 | Non-crystal point film processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218593641U (en) |
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2022
- 2022-11-29 CN CN202223191936.6U patent/CN218593641U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A device for processing amorphous thin films Granted publication date: 20230310 Pledgee: Zhejiang Chongzhou Commercial Bank Co.,Ltd. Pujiang Sub branch Pledgor: ZHEJIANG FITER TECHNOLOGY Co.,Ltd. Registration number: Y2024980006167 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |