CN114261009A - Sanding method for inner hole of cylindrical head disc-shaped suspension type porcelain insulator blank - Google Patents
Sanding method for inner hole of cylindrical head disc-shaped suspension type porcelain insulator blank Download PDFInfo
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- CN114261009A CN114261009A CN202010971611.6A CN202010971611A CN114261009A CN 114261009 A CN114261009 A CN 114261009A CN 202010971611 A CN202010971611 A CN 202010971611A CN 114261009 A CN114261009 A CN 114261009A
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- blank
- sand
- inner hole
- glaze
- cylindrical head
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- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000012212 insulator Substances 0.000 title claims abstract description 22
- 239000000725 suspension Substances 0.000 title claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 94
- 238000007664 blowing Methods 0.000 claims abstract description 42
- 239000003292 glue Substances 0.000 claims abstract description 36
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 6
- 238000005245 sintering Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 101100041681 Takifugu rubripes sand gene Proteins 0.000 description 73
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The invention discloses a sanding method for an inner hole of a cylindrical head disk-shaped suspension type porcelain insulator blank, which belongs to the field of processing of cylindrical head disk-shaped suspension type porcelain insulators and comprises the following steps: s1, placing the blank to enable the inner hole of the blank to be opened downwards; s2, stretching a sponge roller stuck with sand-bonding glaze glue into the inner hole of the blank, rotating the blank and the sponge roller relatively, and smearing a sand-bonding glaze glue layer on the inner hole of the blank; s3, stretching a sand blowing pipe into an inner hole of the blank, blowing glaze-coated sand into the sand blowing pipe, and adhering a glaze-coated sand layer on the sand-coated glaze glue layer; the invention provides a sanding method for an inner hole of a cylindrical head disk-shaped suspension type porcelain insulator blank, which adopts a sponge roller to stretch into an inverted blank inner hole, uniformly coats sand-bonding glaze glue on the wall surface of the blank inner hole, and after spraying and coating glaze sand and sintering treatment, the sintered porcelain sand is only sintered to the side wall of the porcelain piece inner hole, the end part of the inner hole has no porcelain sand, and the uniformity of the electric field distribution at the head part of the porcelain piece cannot be influenced.
Description
Technical Field
The invention relates to the field of processing of cylindrical head disc-shaped suspension porcelain insulators, in particular to a sanding method for inner holes of cylindrical head disc-shaped suspension porcelain insulator blanks.
Background
The cylindrical head suspension type porcelain insulator has the advantages that compared with a cone head product, the head of a porcelain part is small in size, and an iron cap assembled with the porcelain part is smaller, so that raw material consumption is less compared with that of the cone head product, cost is relatively low, and automatic production is facilitated; the defect is that the design of the cylindrical head part ensures that the product has good tensile mechanical property, the head part of the porcelain piece is required to be glazed and sanded during manufacturing so as to have higher friction coefficient, and therefore, one more process is added in the manufacturing process compared with the conical head product. The mechanical and electrical properties are key assessment indexes of the disc-shaped suspension porcelain insulator, the quality of sand on the head of the cylindrical head suspension porcelain insulator directly determines the electromechanical destructive property of a product, and the distribution of electric field stress on the head of the porcelain insulator can be influenced to influence the electrical properties of the product, so that the problem existing in the sand feeding process is solved to become a key and key control item influencing the quality of the product.
In the prior art, when the head of a blank of a cylindrical head product is sanded, outer head sand is firstly added, inner hole sand is added, the outer head sand is mechanically brushed and sandblasted at present, the inner hole is sanded, the manual mode is still adopted before the inner hole is sanded, as shown in figure 1, when the blank head is manually sanded, the sponge roller rotates along the inner hole wall of the blank to paint a sand-bonding glaze glue layer, the sand-bonding glaze glue can flow downwards into the end part of the inner hole of the blank along the inner hole wall of the blank and a central stainless steel roller rod. As shown in fig. 2, after the glaze-coated sand is poured, the glaze-coated sand fills the inner hole of the blank, which causes the inner hole wall of the blank and the end part of the inner hole of the blank to be adhered to the glaze-coated sand. As shown in FIG. 3, the sintered porcelain sand is sintered to the end part and the side wall of the inner hole of the porcelain, which is undesirable because the porcelain sand at the end part of the inner hole can adversely affect the electric field distribution uniformity at the head part of the porcelain, but the operation is inevitable when the porcelain sand is manually applied at present, and thus needs to be improved.
Aiming at the problems, the invention provides a sanding method for an inner hole of a cylindrical head disk-shaped suspension type porcelain insulator blank, which adopts a sponge roller to stretch into the inverted inner hole of the blank, uniformly coats the wall surface of the inner hole of the blank with sand-bonding glaze glue, and after spraying and coating glaze sand and sintering treatment, the sintered porcelain sand is only sintered to the side wall of the inner hole of the porcelain piece, and no porcelain sand is generated at the end part of the inner hole, so that the uniformity of the electric field distribution at the head part of the porcelain piece is not influenced.
Disclosure of Invention
The technical scheme adopted by the invention is as follows: the sanding method for the inner hole of the cylindrical head disk-shaped suspension porcelain insulator blank comprises the following steps:
s1, placing the blank to enable the inner hole of the blank to be opened downwards;
s2, stretching a sponge roller stuck with sand-bonding glaze glue into the inner hole of the blank, rotating the blank and the sponge roller relatively, and smearing a sand-bonding glaze glue layer on the inner hole of the blank;
s3, stretching a sand blowing pipe into the inner hole of the blank, blowing glaze-coated sand into the sand blowing pipe, and adhering a glaze-coated sand layer on the sand-coated glaze glue layer.
Because the original operation mode of coating the inner hole sand-binding glaze glue layer when the inner hole of the blank is coated with sand is changed, after the method is adopted, the operation mode of coating the sand-binding glaze glue layer is adopted from the opening of the blank from bottom to top, so that the problem that the sand-binding glaze glue flows into the end part of the inner hole of the blank is avoided, the phenomenon that the porcelain sand is adhered to the end part of the inner hole of the blank is solved on the source, the sand-binding quality of the blank is effectively improved, after the glaze-coating sand is sprayed and sintered, the sintered porcelain sand is only sintered to the side wall of the inner hole of the porcelain piece, the end part of the inner hole has no porcelain sand, and the electric field distribution uniformity of the head part of the porcelain piece is not influenced.
Preferably, in the step S2, the sponge roller extends in and out along the axial direction of the inner hole of the blank; the sponge roller is prevented from colliding with the blank in the process of stretching into the blank.
Preferably, in step S2, the blank is rotated along its central axis; swing arm sponge gyro wheel to with the blank pore wall laminating, relative rotation between rotatory blank pore wall and the sponge gyro wheel.
Preferably, in the step S3, the sand blowing pipe extends in and out along the axial direction of the inner hole of the blank.
Preferably, in step S3, the sand blowing pipe blows the glaze-wrapped sand into the inner hole of the blank by a stroke not less than the axial width of the sponge roller.
Preferably, the sand blowing pipe moves from top to bottom in a stroke of blowing the glaze-wrapped sand into the inner hole of the blank.
Preferably, the stroke of blowing the glaze-wrapped sand into the inner hole of the blank by the sand blowing pipe is from bottom to top.
Preferably, during the steps S1-S3, the bottom of the blank is provided with a sand receiving hopper for receiving falling objects from the inner hole of the blank.
The invention has the beneficial effects that:
1. according to the invention, a layer of sand-bonding glaze glue layer is uniformly coated in the blank with the downward inner hole opening of the blank through the rotating sponge roller, the sand-bonding glaze glue flows downward under the action of gravity, and the end part of the inner hole of the blank is positioned above the inner hole opening of the blank, so that the sand-bonding glaze glue cannot flow into the end part of the inner hole of the blank. In the subsequent sand blasting process, when the glaze-wrapped sand is blown to the end part of the inner hole of the blank, the glaze-wrapped sand cannot be adhered and fall off, so that no ceramic sand is generated at the end part of the inner hole of the sintered blank, and the distribution uniformity of an electric field at the head part of a ceramic part cannot be influenced.
2. According to the invention, the blank and the sponge roller rotate relatively, the blank further rotates along the central axis of the blank, and when the sponge roller with the sand-bonding glaze glue attached to the surface is attached to the inner wall of the inner hole of the blank, the sponge roller rotates under the driving of the blank, so that the sand-bonding glaze glue can uniformly coat the inner hole of the blank.
Drawings
FIGS. 1-3 are schematic structural views of a prior art sanding method;
FIG. 4 is a schematic structural view of a glue brushing step according to the present invention;
fig. 5 to 6 are schematic views showing the structure of the blasting step in the present invention.
The reference numbers in the figures illustrate:
wherein 1, a blank; 2. an inner hole of the blank; 3. a sponge roller; 4. a sand receiving hopper; 5. and (4) blowing a sand pipe.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
When the head of the blank 1 is sanded, the outer head sand is firstly sanded, and the outer head sand is subjected to mechanical glue brushing and sand blasting operation at present, so that the redundant description is omitted. After the outer head part is sanded, sanding of the inner wall of the inner hole 2 of the blank starts.
Example 1
A sanding method for an inner hole 2 of a cylindrical head disk-shaped suspension porcelain insulator blank comprises the following steps:
s1, placing the blank 1 to enable the inner hole 2 of the blank to be opened downwards;
s2, stretching a sponge roller 3 stuck with sand-bonding glaze glue into the inner hole 2 of the blank, relatively rotating the blank 1 and the sponge roller 3, and smearing a sand-bonding glaze glue layer on the inner hole 2 of the blank;
s3, stretching a sand blowing pipe 5 into the inner hole 2 of the blank, blowing glaze-coated sand into the sand blowing pipe 5, and adhering a glaze-coated sand layer on the sand-bonded glaze glue layer.
As shown in fig. 4, in step S1, the blank 1 is placed on a hollow rotatable platform, the hollow rotatable platform rotates the blank 1, the opening of the blank inner hole 2 on the blank 1 faces downward, and the end part in the blank inner hole 2 is located at the top end of the inner hole.
In step S2, the sponge roller 3 adhered with sand-adhering glaze glue is inserted along the central axis of the blank inner hole 2, and the sponge roller 3 is not in contact with the inner wall of the blank inner hole 2 during the insertion of the sponge roller 3. Further, do the location processing to sponge gyro wheel 3, after sponge gyro wheel 3 upwards stretched into the certain distance, stopped stretching into, the upper end edge of the sponge gyro wheel 3 that is stained with the sand-bond glaze glue flushes with the top border of the sand-bond glaze glue layer that treats to paint, and the lower extreme edge of the sponge gyro wheel 3 that is stained with the sand-bond glaze glue flushes with the below border of the sand-bond glaze glue layer that treats to paint. The bottom of the stainless steel roller rod on the sponge roller 3 is connected with a swing arm, and under the action of the swing arm, the sponge roller 3 transversely moves to enable the surface of the sponge roller to be attached to the wall surface of the blank inner hole 2. Sponge gyro wheel 3 takes place relative rotation with the rotatory blank 1 along with cavity rotatable platform, and the wall of blank hole 2 drives sponge gyro wheel 3 and rotates for the even coating of sand-binding glaze glue layer is on the wall of blank hole 2.
After sponge gyro wheel 3 and 2 wall facings of blank hole laminate the certain time, the coating is accomplished, and the swing arm drives sponge gyro wheel 3 and removes to the intermediate position of blank hole 2 for the center pin of sponge gyro wheel 3 and the center pin coincidence of blank hole 2. Then the sponge roller 3 extends downwards, and in the process of extending the sponge roller 3, the edge of the sponge roller 3 is not contacted with the wall surface of the blank inner hole 2.
As shown in fig. 5, in the blank 1 in which the wall surface of the inner hole 2 of the blank is coated with the sand-binding glaze glue layer in the step S3, the sand blowing pipe 5 extends in the axial direction of the inner hole 2 of the blank, and the outlet end of the sand blowing pipe 5 is located at the upper end thereof. When the outlet end of the sand blowing pipe 5 is close to the end face of the blank inner hole 2, the sand blowing pipe 5 starts to blow air and sand. In the process of blowing sand, the sand blowing pipe 5 moves from top to bottom, the effective moving stroke is L, and L is not less than the axial width of the sponge roller 3. One part of the glaze-coated sand blown out by the sand blowing pipe 5 is adhered by the sand-bonding glaze glue layer, and the other part of the glaze-coated sand naturally falls off when being blown to the surface of the inner hole 2 of the blank and is collected by a sand receiving hopper 4 which is arranged on the hollow rotatable platform and used for receiving the glaze-coated sand.
Example 2
This embodiment is different from embodiment 1 in that, as shown in fig. 6, in step S3, the blank 1, in which the wall surface of the inner hole 2 of the blank is coated with a sand-bonded glaze glue layer, is inserted into a sand-blowing pipe 5, and the outlet end of the sand-blowing pipe 5 is located at the upper end thereof. The outlet end of the sand blowing pipe 5 is close to the opening of the blank inner hole 2, and the sand blowing pipe 5 starts to supply air and blow sand. In the middle of the sand blowing process, the sand blowing pipe 5 moves from bottom to top, the moving effective stroke is L, and L is not less than the axial width of the sponge roller 3. One part of the glaze-coated sand blown out by the sand blowing pipe 5 is adhered by the sand-bonding glaze glue layer, and the other part of the glaze-coated sand naturally falls off when being blown to the surface of the inner hole 2 of the blank and is collected by a sand receiving hopper 4 which is arranged on the hollow rotatable platform and used for receiving the glaze-coated sand.
Example 3
The present embodiment differs from the embodiment in that the width of the area to be painted in the inner hole 2 of the blank is greater than the axial width of the sponge roller 3. In step S2, the sponge roller 3 needs to be repeatedly displaced, so as to ensure that the sponge roller 3 can effectively work on the area to be smeared.
In the case of the example 4, the following examples are given,
the embodiment is different from the embodiment 1 in that the blank 1 in the embodiment is obliquely placed, but the opening of the inner hole 2 of the blank is downward, the sponge roller 3 stretches into and stretches out, and the sand blowing pipe 5 stretches into and stretches out, and all move along the axis direction of the inner hole 2 of the blank, so that the sponge roller 3 and the sand blowing pipe 5 are prevented from colliding with the wall surface of the inner hole 2 of the blank in the moving process.
The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (8)
1. A sanding method for an inner hole of a cylindrical head disc-shaped suspension porcelain insulator blank is characterized by comprising the following steps:
s1, placing the blank to enable the inner hole of the blank to be opened downwards;
s2, stretching a sponge roller stuck with sand-bonding glaze glue into the inner hole of the blank, rotating the blank and the sponge roller relatively, and smearing a sand-bonding glaze glue layer on the inner hole of the blank;
s3, stretching a sand blowing pipe into the inner hole of the blank, blowing glaze-coated sand into the sand blowing pipe, and adhering a glaze-coated sand layer on the sand-coated glaze glue layer.
2. The sanding method for the inner hole of the cylindrical head disc-shaped suspension porcelain insulator blank according to claim 1, characterized by comprising the following steps of: in the step S2, the sponge roller extends in and out along the axial direction of the inner hole of the blank.
3. The sanding method for the inner hole of the cylindrical head disc-shaped suspension porcelain insulator blank according to claim 1, characterized by comprising the following steps of: in step S2, the blank is rotated along its central axis.
4. The sanding method for the inner hole of the cylindrical head disc-shaped suspension porcelain insulator blank according to claim 1, characterized by comprising the following steps of: in the step S3, the sand blowing pipe extends in and out along the axial direction of the inner hole of the blank.
5. The sanding method for the inner hole of the cylindrical head disc-shaped suspension porcelain insulator blank according to claim 1, characterized by comprising the following steps of: in the step S3, the stroke of blowing the glaze-wrapped sand into the inner hole of the blank by the sand blowing pipe is not less than the axial width of the sponge roller.
6. The method for sanding the inner hole of the cylindrical head disc-shaped suspension porcelain insulator blank according to claim 5, wherein the method comprises the following steps: the stroke of blowing the glaze-wrapped sand into the inner hole of the blank by the sand blowing pipe is from top to bottom.
7. The method for sanding the inner hole of the cylindrical head disc-shaped suspension porcelain insulator blank according to claim 5, wherein the method comprises the following steps: the stroke of blowing in the glaze-wrapped sand in the inner hole of the blank by the sand blowing pipe is from bottom to top.
8. The sanding method for the inner hole of the cylindrical head disc-shaped suspension porcelain insulator blank according to claim 1, characterized by comprising the following steps of: in the processes of the steps S1-S3, a sand receiving hopper is arranged at the bottom of the blank and is used for receiving falling objects from the inner hole of the blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010971611.6A CN114261009A (en) | 2020-09-16 | 2020-09-16 | Sanding method for inner hole of cylindrical head disc-shaped suspension type porcelain insulator blank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010971611.6A CN114261009A (en) | 2020-09-16 | 2020-09-16 | Sanding method for inner hole of cylindrical head disc-shaped suspension type porcelain insulator blank |
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| CN114261009A true CN114261009A (en) | 2022-04-01 |
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| CN202010971611.6A Pending CN114261009A (en) | 2020-09-16 | 2020-09-16 | Sanding method for inner hole of cylindrical head disc-shaped suspension type porcelain insulator blank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773088A (en) * | 2022-04-02 | 2022-07-22 | 中材江西电瓷电气有限公司 | Automatic glazing and sanding method for cylindrical head suspension type porcelain insulator blank |
| CN114919046A (en) * | 2022-05-30 | 2022-08-19 | 中材江西电瓷电气有限公司 | Coating process for sand-bonding glaze of inner hole of porcelain insulator with cylindrical head |
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|---|---|---|---|---|
| GB291028A (en) * | 1927-05-24 | 1929-05-23 | Davidge Harrison Rowland | Improvements in and relating to multi-part insulators |
| JPH0737459A (en) * | 1993-07-20 | 1995-02-07 | Ngk Insulators Ltd | Structure for preventing dropping of sand particle from porcelain insulator top and prevention of sand particle drop |
| JP2869412B1 (en) * | 1998-03-26 | 1999-03-10 | 明知碍子株式会社 | Sanding method and device |
| CN105845286A (en) * | 2016-06-15 | 2016-08-10 | 江苏南瓷绝缘子股份有限公司 | Rod-shaped suspension type composite insulator for railway and fabrication method of composite insulator |
| CN107717245A (en) * | 2017-11-02 | 2018-02-23 | 海盐金龙塑业有限公司 | A kind of light guide plate cuts gluing all-in-one |
| CN207788670U (en) * | 2017-12-07 | 2018-08-31 | 天津市双涛达克罗技术有限公司 | A kind of sand-blasting machine of sandblasting angle adjustable |
| CN110405638A (en) * | 2019-08-06 | 2019-11-05 | 哈尔滨理工大学 | A kind of multistation suspension tooling for automated machine processing abrasive blast equipment |
-
2020
- 2020-09-16 CN CN202010971611.6A patent/CN114261009A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB291028A (en) * | 1927-05-24 | 1929-05-23 | Davidge Harrison Rowland | Improvements in and relating to multi-part insulators |
| JPH0737459A (en) * | 1993-07-20 | 1995-02-07 | Ngk Insulators Ltd | Structure for preventing dropping of sand particle from porcelain insulator top and prevention of sand particle drop |
| JP2869412B1 (en) * | 1998-03-26 | 1999-03-10 | 明知碍子株式会社 | Sanding method and device |
| CN105845286A (en) * | 2016-06-15 | 2016-08-10 | 江苏南瓷绝缘子股份有限公司 | Rod-shaped suspension type composite insulator for railway and fabrication method of composite insulator |
| CN107717245A (en) * | 2017-11-02 | 2018-02-23 | 海盐金龙塑业有限公司 | A kind of light guide plate cuts gluing all-in-one |
| CN207788670U (en) * | 2017-12-07 | 2018-08-31 | 天津市双涛达克罗技术有限公司 | A kind of sand-blasting machine of sandblasting angle adjustable |
| CN110405638A (en) * | 2019-08-06 | 2019-11-05 | 哈尔滨理工大学 | A kind of multistation suspension tooling for automated machine processing abrasive blast equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773088A (en) * | 2022-04-02 | 2022-07-22 | 中材江西电瓷电气有限公司 | Automatic glazing and sanding method for cylindrical head suspension type porcelain insulator blank |
| CN114919046A (en) * | 2022-05-30 | 2022-08-19 | 中材江西电瓷电气有限公司 | Coating process for sand-bonding glaze of inner hole of porcelain insulator with cylindrical head |
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