CN116945053A - Glass hot bending graphite mold surface treatment process - Google Patents
Glass hot bending graphite mold surface treatment process Download PDFInfo
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- CN116945053A CN116945053A CN202310582664.2A CN202310582664A CN116945053A CN 116945053 A CN116945053 A CN 116945053A CN 202310582664 A CN202310582664 A CN 202310582664A CN 116945053 A CN116945053 A CN 116945053A
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- Prior art keywords
- sand blasting
- graphite mold
- graphite
- polishing
- mold cavity
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- Pending
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 78
- 239000010439 graphite Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004381 surface treatment Methods 0.000 title claims abstract description 20
- 239000011521 glass Substances 0.000 title claims abstract description 14
- 238000013003 hot bending Methods 0.000 title claims abstract description 14
- 238000005488 sandblasting Methods 0.000 claims abstract description 88
- 238000005498 polishing Methods 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000000227 grinding Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 11
- 239000010432 diamond Substances 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims description 11
- 239000010431 corundum Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010023 transfer printing Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 19
- 238000012360 testing method Methods 0.000 description 15
- 238000005422 blasting Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 238000005816 glass manufacturing process Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 206010040925 Skin striae Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
- B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
- B24C7/0061—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a surface treatment process of a glass hot-bending graphite mold, and belongs to the technical field of glass hot-bending graphite molds. The technical proposal is as follows: the method comprises the following steps: s1, rough sand blasting: adopting a wet sand blasting method to treat the graphite mold cavity to remove the processing tool grains; s2, fine sand blasting: treating the graphite mold cavity by adopting a wet sand blasting method to repair coarse sand blasting marks; s3, fine polishing: polishing the graphite mold cavity by adopting diamond grinding paste to repair fine sand blasting marks; s4, drying: and drying the treated graphite mold, removing water in the graphite mold, and preventing oxidation. The invention can lighten or eliminate the knife lines generated by the processing of the graphite die, reduce the surface roughness of the die, simultaneously reduce the thermal transfer printing of the die on the product, and the processed product has fine and smooth surface, can effectively reduce the polishing time of the product, and can effectively improve the overall yield while improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of glass hot-bending graphite dies, in particular to a surface treatment process of a glass hot-bending graphite die.
Background
In the curved glass manufacturing process, the graphite mold is the main technological equipment for curved glass hot bending forming, and the quality of the graphite mold directly determines the overall yield of the curved glass manufacturing process, and the key dominant position of the graphite mold in the curved glass manufacturing process is established due to the excellent characteristics of the graphite mold in each layer.
The graphite mold needs to be processed with very high precision, and graphite materials are hard and brittle, so that the abrasion to a cutter is serious in CNC processing, the manufacturing and processing difficulty is high, and the graphite mold needs to be processed with high technology and rigorous processing. In the process of processing, high precision and surface finish of die manufacture must be ensured, otherwise, the use effect and service life of the die are affected. The requirement of high precision causes failure and waste of the die once there is a little deviation in the processing process, so the surface processing of the graphite material is time-consuming and labor-consuming, and the processing cost is high.
At present, the main difficulty of graphite processing is that the accuracy is ensured and the surface finish is controlled, and the problems that the surface of a die generates tool marks and the surface roughness does not reach the standard and the like are often caused in the processing process due to the influence of factors such as equipment, tools, technology and the like, so that the die is scrapped or reworked.
Accordingly, it is necessary to provide a surface treatment method capable of repairing the surface texture and surface roughness of a graphite mold without affecting the mold accuracy, so as to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems that: the surface treatment process for the glass hot-bending graphite die has the advantages that the defects of the prior art are overcome, the cutter lines generated by processing the graphite die can be reduced or eliminated, the surface roughness of the die is reduced, meanwhile, the thermal transfer printing of the die to the stamping of the product is reduced, the processed product surface is fine and smooth, the polishing time of the product can be effectively reduced, and the overall yield can be effectively improved while the production efficiency is improved.
The technical scheme of the invention is as follows:
the surface treatment process of the glass hot-bending graphite die comprises the following steps:
s1, rough sand blasting: adopting a wet sand blasting method to treat the graphite mold cavity to remove the processing tool grains;
s2, fine sand blasting: treating the graphite mold cavity by adopting a wet sand blasting method to repair coarse sand blasting marks;
s3, fine polishing: polishing the graphite mold cavity by adopting diamond grinding paste to repair fine sand blasting marks;
s4, drying: and drying the treated graphite mold, removing water in the graphite mold, and preventing oxidation.
Preferably, in step S1, a wet sand blasting machine is used to process the graphite mold cavity, and 1900-2100 mesh white corundum sand abrasive is used, wherein the abrasive is diamond-shaped, and the sand-water ratio is 1:2, the sand blasting pressure is 0.39-0.41mpa, the distance of a sand blasting gun is 140-160mm, the sand blasting angle is 25-35 degrees, the sand blasting gun longitudinally reciprocates, the clamping table rotating speed is 25-35r/min, the feeding speed of the sand blasting gun is 1150-1250mm/min, and the sand blasting time is 75-85s.
Preferably, in step S2, a wet sand blaster is used to process the graphite mold cavity, and 3100-3300 mesh resin abrasive is used, the abrasive is circular in shape, and the sand-water ratio is 1:2, the sand blasting pressure is 0.39-0.41mpa, the distance of a sand blasting gun is 140-160mm, the sand blasting angle is 25-35 degrees, the sand blasting gun longitudinally reciprocates, the clamping table rotating speed is 25-35r/min, the feeding speed of the sand blasting gun is 1150-1250mm/min, and the sand blasting time is 75-85s.
Preferably, in step S3, the graphite mold cavity is polished by using a wool polishing wheel and 5900-6100 mesh diamond grinding paste, wherein the amount of the grinding paste is 0.1-0.2g/cm 2 Rotation speed of polishing wheelThe polishing time is between 28 and 32 minutes at 75 to 85 r/min.
Preferably, in step S4, the drying temperature is 195-205 ℃ and the drying time is 230-250min.
Compared with the prior art, the invention has the following beneficial effects:
the surface treatment process disclosed by the invention can reduce or eliminate the knife lines generated by processing the graphite die, reduce the surface roughness of the die, reduce the thermal transfer printing of the die on a product, and ensure that the processed product has a fine and smooth surface, so that the polishing time of the product can be effectively reduced, the production efficiency is improved, and the overall yield can be effectively improved.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the embodiments.
Machining a graphite mold: processing a graphite blank according to a designed structure, selecting a high-quality diamond coating cutter with good heat resistance, high wear resistance, oxidation resistance and low adhesiveness as a cutting cutter material, and finishing a graphite die by using an R cutter during cutting, wherein parameters are as follows: cutting amount is 0.03mm, processing speed is 3m/min, and spindle rotating speed is 22000rpm.
Example 1
The surface treatment is carried out on the processed graphite mould, and the method specifically comprises the following steps:
s1, rough sand blasting: the graphite mold cavity is treated by adopting a wet sand blasting method, and the processing tool lines are removed, specifically: a wet sand blasting machine (ZS-1200W-2 double-station wet sand blasting machine of Suzhou Co., ltd.) is adopted to treat the graphite mold cavity, 2000 mesh white corundum sand abrasive is adopted, the shape of the abrasive is diamond, and the sand-water ratio is 1:2, the sand blasting pressure is 0.4mpa, the distance of a sand blasting gun is 150mm, the sand blasting angle is 30 degrees, the sand blasting gun longitudinally reciprocates, the rotating speed of a clamping table is 30r/min, the feeding speed of the sand blasting gun is 1200mm/min, and the sand blasting time is 80s.
S2, fine sand blasting: the graphite mold cavity is treated by adopting a wet sand blasting method, and the rough sand blasting trace is repaired, specifically: a wet sand blaster (ZS-1200W-2 double-station wet sand blaster of Suzhou Co., ltd.) is adopted to treat the graphite mold cavity, 3200 mesh resin abrasive is adopted, the abrasive shape is circular, and the sand water ratio is 1:2, the sand blasting pressure is 0.4mpa, the distance of a sand blasting gun is 150mm, the sand blasting angle is 30 degrees, the sand blasting gun longitudinally reciprocates, the rotating speed of a clamping table is 30r/min, the feeding speed of the sand blasting gun is 1200mm/min, and the sand blasting time is 80s.
S3, fine polishing: adopt diamond grinding paste to polish graphite mould die cavity, restore the thin sand blasting vestige, specifically do: polishing the graphite mold cavity by using a wool polishing wheel and 6000-mesh diamond grinding paste, wherein the using amount of the grinding paste is 0.15g/cm, the rotating speed of the polishing wheel is 80r/min, and the polishing time is 30min.
S4, drying: and (3) putting the treated graphite mold into an oven for drying, wherein the drying temperature is 200 ℃, the drying time is 240min, and the moisture in the graphite mold is removed to prevent oxidation, so that the treated graphite mold is finally obtained.
Comparative example 1
The difference from example 1 is that: comparative example 1 the surface treatment of the processed graphite mold was not performed.
Comparative example 2
The difference from example 1 is that: in the step S1, a graphite mold cavity is treated by adopting a dry sand blasting method, and the machined tool grains are removed, specifically: a dry sand blasting machine (ZS-1400 SA-16 dry sand blasting machine of Suzhou Co., ltd.) is adopted, 2000 mesh white corundum sand abrasive is adopted, the abrasive shape is diamond, the sand blasting pressure is 0.4mpa, the distance of a sand blasting gun is 150mm, the sand blasting angle is 30 degrees, a spray gun longitudinally reciprocates to blast sand, the rotating speed of a clamping table is 30r/min, the feeding speed of the spray gun is 1200mm/min, and the sand blasting time is 80s.
In the step S2, a graphite mold cavity is treated by adopting a dry sand blasting method, and a rough sand blasting trace is repaired, specifically: adopting a dry sand blasting machine, adopting a resin abrasive with 3200 meshes, wherein the abrasive is circular, the sand blasting pressure is 0.4mpa, the distance of a sand blasting gun is 150mm, the sand blasting angle is 30 degrees, the spray gun longitudinally reciprocates to perform sand blasting, the rotating speed of a clamping table is 30r/min, the feeding speed of the spray gun is 1200mm/min, and the sand blasting time is 80s.
Comparative example 3
The difference from example 1 is that: in the step S1, 1000-mesh white corundum sand abrasive materials are adopted; in step S2, 2200 mesh resin abrasive is used.
Comparative example 4
The difference from example 1 is that: in the step S1, the sand-water ratio is 1:1, a step of; in the step S2, the sand-water ratio is 1:1.
comparative example 5
The difference from example 1 is that: in step S1, the sand blasting pressure is 0.3mpa; in step S2, the blasting pressure was 0.3mpa.
Comparative example 6
The difference from example 1 is that: in the step S1, the sand blasting pressure is 0.5mpa; in step S2, the blasting pressure was 0.5mpa.
Comparative example 7
The difference from example 1 is that: in the step S1, the distance of the sand blasting gun is 250mm, and the sand blasting angle is 65 degrees; in step S2, the distance of the sand blasting gun is 250mm, and the sand blasting angle is 65 degrees.
Comparative example 8
The difference from example 1 is that: in the step S1, the feeding speed of the spray gun is 650mm/min, and the sand blasting time is 120S; in step S2, the feeding speed of the spray gun is 650mm/min, and the sand blasting time is 120S.
Comparative example 9
The difference from example 1 is that: in step S3, a graphite mold cavity was polished with a 3000 mesh diamond paste.
Comparative example 10
The difference from example 1 is that: in step S3, the rotation speed of the polishing wheel is 160r/min.
Comparative example 11
The difference from example 1 is that: in step S3, the polishing time was 60 minutes.
Performance testing
Randomly extracting 1 set of graphite molds from the graphite molds prepared in the example 1 and the comparative examples 1-11, and respectively carrying out a mold surface roughness test and a mold cavity contour dimension test on the extracted 12 sets of molds, wherein the mold surface roughness test is specifically as follows: 5 points (center point of the mold, four intersection points of center point shifting +40 and-40 and center point shifting +80 and-80 along Y direction) of the surface of the mold were tested by using a 3D optical profiler with model KLA-Tencor of Micro XAM1200, and the surface roughness Ra values of the 5 measurement points were measured, and the test results are shown in Table 1. The die cavity contour dimension test specifically comprises the following steps: measuring the precision of the die cavity surface on a three-coordinate measuring machine, detecting 5 measuring points in total by adopting a center point, four intersection points of the center point with the offset of +40 and-40 along the Y direction and the offset of +80 and-80 along the X direction, comparing the deviation between the design model and actual measured data by the best fit with the center point of the die as a reference, taking the maximum deviation, and testing the result shown in Table 2.
TABLE 1 (Unit: ra/nm)
Table 2 (Unit: mm)
And then carrying out molding test production by using the 12 sets of extracted graphite molds, copying and preparing a large number of molded products uniformly, randomly extracting 1 piece of molded product from the molded products molded by the 12 sets of graphite molds, and carrying out surface roughness test on the extracted molded products. Wherein, the surface roughness test of the molded product specifically comprises: 5 points (mold center point, center point offset +30 and-30 along Y direction and center point offset +60 and-60 along X direction) on the surface of the molded product were measured by using a 3D optical profiler with model KLA-Tencor of Micro XAM1200, and the surface roughness Ra values of the 5 measurement points were measured, and the test results are shown in Table 3:
TABLE 3 (Unit: ra/nm)
500 pieces of each of the molded articles prepared by the graphite molds of example 1 and comparative example 1 were extracted and divided into 5 groups of 100 pieces each, and each of the 5 groups of molded articles prepared by the two sets of graphite molds was subjected to a stamp removal test using 5 polishing processes, the 5 polishing processes being: (1) the brush material is used for polishing leather strips, the specification of the brush is 900mm, the grain diameter of polishing powder is less than 2um, the concentration of polishing liquid is 1.15+/-0.02 g/ml, the pressure is 230+/-50 kg, the rotating speed of a grinding disc is 200+/-50 r/min, and the polishing time is 30min; (2) unlike the process of group (1), the polishing time was 40min; (3) unlike the process of group (1), the polishing time was 50min; (4) unlike the process of group (1), the polishing time was 60 minutes; (5) unlike the process of group (1), the polishing time was 80 minutes.
The molded articles were inspected according to the product requirements after polishing, and yield expression data of the graphite mold pressure test products obtained in example 1 and comparative example 1 under different processes were obtained as shown in table 4:
TABLE 4 Table 4
From the data in table 1, it can be seen that the surface roughness of the graphite mold obtained in example 1 is between Ra130 and 152nm, and the surface roughness of the graphite mold obtained in comparative example 1 is between Ra855 and 900nm, so that the surface treatment process of the present invention can effectively reduce or eliminate the striae generated by the mold processing, and can reduce the roughness of the mold surface. As can be seen from the data in table 2, the cavity profile test data of the graphite molds obtained in example 1 and comparative example 1 have no significant difference, which indicates that the surface treatment process of the present invention has no great influence on the precision of the molds. Further, as can be seen from the data in tables 2 and 3, the surface roughness of the graphite molds obtained in example 1 and comparative example 1 was proportional to the surface roughness of the molded articles produced therefrom, and the molded articles produced by the mold of example 1 subjected to the surface treatment had a better surface roughness effect, and the surfaces of the products were finer and smoother, so that the subsequent processing treatment of the products was simpler. From the data in Table 4, it can be seen that the yield of the graphite mold pressure test product obtained in example 1 performed better than that of comparative example 1 under different polishing processes.
Further, as can be seen from the data of examples 1 and 2, 3, 6, 8, 9 in tables 1 to 3, the graphite mold was surface-treated with the coarser abrasive paste by dry blasting, using coarser sand grains, increasing blasting pressure, decreasing the moving speed of the blasting gun, excessively long blasting time, and using the coarser abrasive paste, but the resulting mold surface was coarser and the mold plane profile accuracy was impaired, although the surface texture of the graphite mold could also be removed.
From the data of examples 1 and 4, 10 and 11 in tables 1-3, it can be found that the use of too high a sand-to-water ratio, too high a grinding wheel speed and too long a polishing time can damage the mold plane profile accuracy, but the use of higher sand-to-water ratio and higher grinding wheel speed can also result in better mold surface roughness.
In summary, the surface treatment process of the invention can effectively solve the problems of scrapping or reworking of the die caused by the fact that the processing tool grain and the surface roughness of the graphite die are not up to standard in the prior art, and provides a surface treatment method capable of repairing the surface tool grain and the surface roughness of the graphite die without affecting the accuracy of the die.
Claims (5)
1. The surface treatment process of the glass hot-bending graphite die is characterized by comprising the following steps of:
s1, rough sand blasting: adopting a wet sand blasting method to treat the graphite mold cavity to remove the processing tool grains;
s2, fine sand blasting: treating the graphite mold cavity by adopting a wet sand blasting method to repair coarse sand blasting marks;
s3, fine polishing: polishing the graphite mold cavity by adopting diamond grinding paste to repair fine sand blasting marks;
s4, drying: and drying the treated graphite mold, removing water in the graphite mold, and preventing oxidation.
2. The glass hot-bending graphite mold surface treatment process according to claim 1, wherein in the step S1, a wet sand blasting machine is adopted to treat a graphite mold cavity, and 1900-2100 mesh white corundum sand abrasive is adopted, the abrasive is diamond-shaped, and the sand-water ratio is 1:2, the sand blasting pressure is 0.39-0.41mpa, the distance of a sand blasting gun is 140-160mm, the sand blasting angle is 25-35 degrees, the sand blasting gun longitudinally reciprocates, the clamping table rotating speed is 25-35r/min, the feeding speed of the sand blasting gun is 1150-1250mm/min, and the sand blasting time is 75-85s.
3. The glass hot-bending graphite mold surface treatment process according to claim 1, wherein in step S2, a wet sand blasting machine is used for treating the graphite mold cavity, a 3100-3300 mesh resin abrasive is used, the abrasive is circular in shape, and the sand-water ratio is 1:2, the sand blasting pressure is 0.39-0.41mpa, the distance of a sand blasting gun is 140-160mm, the sand blasting angle is 25-35 degrees, the sand blasting gun longitudinally reciprocates, the clamping table rotating speed is 25-35r/min, the feeding speed of the sand blasting gun is 1150-1250mm/min, and the sand blasting time is 75-85s.
4. The glass hot-bending graphite mold surface treatment process according to claim 1, wherein in step S3, a wool polishing wheel and 5900-6100 mesh diamond grinding paste are used to polish the graphite mold cavity, the amount of the grinding paste is 0.1-0.2g/cm 2 The rotation speed of the polishing wheel is 75-85r/min, and the polishing time is 28-32min.
5. The glass hot-bending graphite mold surface treatment process according to claim 1, wherein in the step S4, the drying temperature is 195-205 ℃ and the drying time is 230-250min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310582664.2A CN116945053A (en) | 2023-05-23 | 2023-05-23 | Glass hot bending graphite mold surface treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310582664.2A CN116945053A (en) | 2023-05-23 | 2023-05-23 | Glass hot bending graphite mold surface treatment process |
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| CN116945053A true CN116945053A (en) | 2023-10-27 |
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| CN202310582664.2A Pending CN116945053A (en) | 2023-05-23 | 2023-05-23 | Glass hot bending graphite mold surface treatment process |
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- 2023-05-23 CN CN202310582664.2A patent/CN116945053A/en active Pending
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