CN110744404A - Beryllium plate surface treatment method - Google Patents
Beryllium plate surface treatment method Download PDFInfo
- Publication number
- CN110744404A CN110744404A CN201910850539.9A CN201910850539A CN110744404A CN 110744404 A CN110744404 A CN 110744404A CN 201910850539 A CN201910850539 A CN 201910850539A CN 110744404 A CN110744404 A CN 110744404A
- Authority
- CN
- China
- Prior art keywords
- beryllium plate
- beryllium
- belt
- sanding
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/006—Machines or devices using grinding or polishing belts; Accessories therefor for special purposes, e.g. for television tubes, car bumpers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a beryllium plate surface treatment method, which comprises the following steps: firstly, selecting a beryllium plate to be treated and an abrasive belt driven to operate by a motor; horizontally placing the beryllium plate on a conveyor belt; secondly, vertically suspending the abrasive belt on the horizontal plane of the conveying belt; after the gap between the horizontal plane of the conveyer belt and the abrasive belt is initially adjusted, the beryllium plate is moved to a fixed position and fixed through the initially adjusted conveyer belt; thirdly, carrying out primary sealing sanding treatment on the surface of the beryllium plate; fourthly, adjusting the gap between the horizontal plane of the conveying belt and the abrasive belt downwards, and then changing the plane of the beryllium plate; fifthly, the beryllium plate after surface changing is moved to a fixed position through a conveying belt and fixed; the surface of the beryllium plate after surface replacement is subjected to secondary sealing sanding treatment by the friction of the abrasive belt and the surface of the beryllium plate after surface replacement; and step six, repeating the step four and the step five until the beryllium plate meeting the requirements is obtained, and then removing dust and ventilating and exhausting air. The method can thoroughly remove the defects and the oxide layer on the surface of the beryllium plate, and improves the surface quality of the beryllium plate.
Description
Technical Field
The invention belongs to the technical field of beryllium plate surface treatment, and particularly relates to a beryllium plate surface treatment method.
Background
The beryllium material is a low-plasticity brittle hard metal, and is very easy to crack and break during cold rolling in the rolling process of the beryllium plate. Generally, hot rolling (warm rolling) is used to complete almost all of the rolling passes, and finally cold rolling is used to improve the surface quality to produce the finished product. However, the beryllium plate is difficult to avoid cracking and edge cracking which are less in degree than cold rolling in the warm rolling process, so that the surface of a used roller is extremely easy to damage, and a series of defects can be generated on the surface of the beryllium plate after multi-pass rolling. In addition, the beryllium plate is oxidized to form an oxide layer after being heated and rolled and after being subjected to high-temperature heat treatment. In order to facilitate subsequent rolling and improve the surface quality, defects and an oxide layer on the surface of the beryllium plate are removed, and an acid liquefaction washing method is usually adopted for removing the defects and the oxide layer. The acid liquefaction washing method is to place the beryllium plate to be subjected to surface treatment in a prepared acid washing solution, and remove the defects and the oxide layer on the surface of the beryllium plate by utilizing a chemical reaction.
Acid-liquid scrubbing suffers from a number of disadvantages: the environmental pollution is serious when the acid liquor is washed; the surface treatment amount is small, and all defects on the surface of the beryllium plate cannot be thoroughly removed; the surface of the beryllium plate after chemical washing is rough and has poor quality; finished products cannot be directly produced, and can be produced after the surface quality is improved through cold rolling, so that the processing period is long and the working efficiency is low; the beryllium plate is easy to crack and break during cold rolling, so that the material waste is serious and the material utilization rate is low.
Because the metal beryllium is nonmagnetic, the metal beryllium cannot be directly fixed on a magnetic disc of mechanical equipment or a device to carry out surface treatment by means of attraction of the magnetic disc; because the beryllium plate is thin, the beryllium plate is difficult to be embedded on a carrier disc of mechanical equipment or a device for surface treatment by the rotation of the carrier disc; because the beryllium plate has light weight and small overall dimension, the beryllium plate is difficult to fix on mechanical equipment or a device by a vacuum negative pressure method and carry out surface treatment by mechanical processing. Therefore, the conventional mechanical means is difficult to effectively treat the surface oxide layer and the surface defects of the beryllium plate, and the treatment effect is not ideal.
At present, no electroless beryllium plate surface washing treatment method with good effect exists in China. Some domestic companies usually adopt a vacuum chuck method, wherein the vacuum chuck method is to cut a beryllium plate into finished beryllium pieces, then adsorb and fix the beryllium pieces by using a vacuum chuck, and manually perform surface treatment on the beryllium pieces on an abrasive belt. The disadvantages of this method are: the environmental pollution is serious, and the operation environment is poor; the one-time treatment area is small, and the working efficiency is low; the surface of the beryllium sheet after treatment is easy to be damaged, the rework probability is high, and the material utilization rate is low; the tolerance of the thickness dimension of the beryllium sheet is difficult to control, the precision of the thickness dimension after treatment is poor, and the probability of unqualified products is high.
Disclosure of Invention
The invention aims to provide a beryllium plate surface treatment method, which can thoroughly remove defects and an oxide layer on the beryllium plate surface so as to improve the surface quality of the beryllium plate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for processing the surface of a beryllium plate comprises the following steps:
firstly, selecting a beryllium plate to be treated and an abrasive belt driven to operate by a motor; horizontally placing the beryllium plate on a conveyor belt;
secondly, vertically suspending the abrasive belt on the horizontal plane of the conveying belt; after the gap between the horizontal plane of the conveyer belt and the abrasive belt is initially adjusted, the horizontally placed beryllium plate is moved to a fixed position through the initially adjusted conveyer belt to be positioned and fixed;
thirdly, performing primary sealing sanding treatment on the surface of the beryllium plate through friction between the abrasive belt and the surface of the beryllium plate;
fourthly, adjusting the gap between the horizontal plane of the conveying belt and the abrasive belt downwards, and then changing the plane of the beryllium plate;
fifthly, the beryllium plate after surface changing is moved to a fixed position through a conveyer belt to be positioned and fixed; the abrasive belt rubs the surface of the beryllium plate after the surface is changed, and secondary sealing sanding treatment is carried out on the surface of the beryllium plate after the surface is changed;
and step six, repeating the step four and the step five until the beryllium plate meeting the requirements is obtained, and then performing dust removal and ventilation and exhaust treatment.
Further, the beryllium plate is 120-200 mm long, 20-100 mm wide and 0.1-2.0 mm thick; the abrasive belt is 200-500 meshes in model.
Further, in the second step, the size of the gap is equal to the thickness of the beryllium plate.
Furthermore, in the fourth step, the downward adjustment clearance is 0.005 mm-0.01 mm each time; and carrying out clearance sanding treatment for 2-4 times every time when the clearance sanding treatment is adjusted downwards.
Further, the process conditions of the primary sealing sanding treatment and the secondary sealing sanding treatment are as follows:
the sanding processing amount is 0.005 mm-0.01 mm/time; and sanding for 2-4 times at each given sanding processing amount.
Further, in step six, the number of repetitions satisfies the following condition:
the total times of the primary sealing sanding treatment and the secondary sealing sanding treatment are 12-36; the total processing amount of the primary sealing sanding treatment and the secondary sealing sanding treatment is 0.02-0.18 mm; the total amount of the gap between the horizontal plane of the conveying belt and the abrasive belt is adjusted down to be 0.02-0.18 mm.
The invention has the technical effects that:
1. the surface treatment processing amount is large (can reach 0.02-0.18 mm), the defects and the oxide layer on the surface of the beryllium plate can be thoroughly removed, the surface quality of the beryllium plate is improved, cold rolling is not needed, the brittle fracture and the edge cracking of the beryllium plate during cold rolling are avoided, materials are saved, the product qualification rate is high, the serious environmental pollution is avoided, and the operating environment is purified and protected; the thickness tolerance of the beryllium sheet can be well controlled, and the thickness precision is improved
2. The surface treatment processing amount is adjustable, the thickness of the beryllium plate is controllable in the treatment process, and the thickness and the size of the treated beryllium plate are accurate; simple production process, convenient operation, high working efficiency, short processing period and low production cost.
3. The technical indexes of the beryllium plate surface are as follows:
(1) surface quality: the roughness Ra is 0.1-0.3 μm;
(2) the thickness dimension deviation is that-5% H is less than or equal to △ H and less than or equal to + 5% H;
(3) the material utilization rate reaches more than 39 percent;
(4) the conditions of removing an oxide layer and surface defects on the surface of the beryllium plate are as follows: the surface oxide layer of the beryllium plate is thoroughly removed, and the surface defect removal rate reaches over 95 percent;
(5) the qualification rate of the cut product reaches more than 94 percent.
Drawings
FIG. 1 is a schematic view of the positional relationship between the conveyor belt, beryllium plate, and sand belt prior to adjustment;
fig. 2 is a schematic diagram of the positional relationship among the adjusted conveyor belt, beryllium plate and sand belt.
Detailed Description
The following provides a detailed description of specific embodiments of the present invention.
Example 1:
firstly, selecting a beryllium plate 1 to be processed and an abrasive belt 3 which is driven to operate by a motor according to an operation direction 4; and the beryllium plate 1 is horizontally placed on a conveyer belt 2, refer to fig. 1. Wherein the beryllium plate has the length of 120mm, the width of 20mm and the thickness of 0.5 mm; the abrasive belt is 200 meshes.
Secondly, vertically suspending an abrasive belt 3 on the horizontal plane of the conveying belt 1, and referring to fig. 1; after the gap between the horizontal surface of the conveyer belt 1 and the abrasive belt 3 is initially adjusted (i.e. the conveyer belt 2 rises according to the adjustment direction 6, and the gap between the horizontal surface of the conveyer belt 2 and the abrasive belt 3 is reduced), the conveyer belt 3 after initial adjustment moves the horizontally placed beryllium plate to a fixed position according to the transmission direction 5 for positioning and fixing, refer to fig. 2. Wherein the gap is 0.5 mm.
Thirdly, performing primary sealing sanding treatment on the surface of the beryllium plate 1 through friction between the abrasive belt 3 and the surface of the beryllium plate 1; sanding processing amount is 0.006 mm/time; and sanding for 4 times at each given sanding processing amount.
Fourthly, adjusting the gap between the horizontal plane of the conveyer belt 2 and the abrasive belt 3 downwards (namely, the conveyer belt 2 rises according to the adjusting direction 6, and the gap between the horizontal plane of the conveyer belt 2 and the abrasive belt 3 is reduced), and then changing the plane of the beryllium plate 1; wherein, the clearance is adjusted downwards by 0.006mm every time, and the clearance sanding is performed for 4 times every time.
Fifthly, the beryllium plate 1 after surface changing is moved to a fixed position through a conveyer belt 2 to be positioned and fixed; and performing secondary sealing sanding treatment on the surface of the beryllium plate 1 after the surface is changed by the friction between the abrasive belt 3 and the surface of the beryllium plate 1 after the surface is changed. Wherein the sanding processing amount is 0.006 mm/time; and sanding for 4 times at each given sanding processing amount.
And step six, repeating the step four and the step five until the beryllium plate meeting the requirements is obtained, and then performing dust removal and ventilation and exhaust treatment.
In this embodiment, the total pass of the primary sealing sanding treatment and the secondary sealing sanding treatment is 20; the total processing amount of the primary sealing sanding treatment and the secondary sealing sanding treatment is 0.03 mm; the total amount was adjusted downward by 0.03 mm.
Through detection, each technical index of the beryllium plate surface treated by the embodiment is as follows:
(1) surface quality: the roughness Ra is 0.1 μm;
(2) the thickness dimension deviation is that-3% H is less than or equal to △ H and less than or equal to + 3% H;
(3) material utilization rate: 40 percent;
(4) the conditions of removing an oxide layer and surface defects on the surface of the beryllium plate are as follows: the surface oxide layer of the beryllium plate is thoroughly removed, and the surface defect removal rate is 96%;
(5) yield of cut product: 96 percent.
Example 2:
firstly, selecting a beryllium plate 1 to be processed and an abrasive belt 3 which is driven to operate by a motor according to an operation direction 4; and the beryllium plate 1 is horizontally placed on a conveyer belt 2, refer to fig. 1. Wherein the beryllium plate has the size of 160mm in length, 60mm in width and 0.1mm in thickness; the abrasive belt is 400 meshes.
Secondly, vertically suspending an abrasive belt 3 on the horizontal plane of the conveying belt 1, and referring to fig. 1; after the gap between the horizontal surface of the conveyer belt 1 and the abrasive belt 3 is initially adjusted (i.e. the conveyer belt 2 rises according to the adjustment direction 6, and the gap between the horizontal surface of the conveyer belt 2 and the abrasive belt 3 is reduced), the horizontally placed beryllium plate 1 is moved to a fixed position to be positioned and fixed according to the transmission direction 5 by the initially adjusted conveyer belt 3, and refer to fig. 2. Wherein the gap is 0.1 mm.
Thirdly, performing primary sealing sanding treatment on the surface of the beryllium plate 1 through friction between the abrasive belt 3 and the surface of the beryllium plate 1; the sanding processing amount is 0.005 mm/time; and sanding for 3 times at each given sanding processing amount.
Fourthly, adjusting the gap between the horizontal plane of the conveyer belt 2 and the abrasive belt 3 downwards (namely, the conveyer belt 2 rises according to the adjusting direction 6, and the gap between the horizontal plane of the conveyer belt 2 and the abrasive belt 3 is reduced), and then changing the plane of the beryllium plate; wherein, the clearance is adjusted downwards by 0.005mm every time, and the clearance sanding treatment is performed for 2 times every time.
Fifthly, the beryllium plate 1 after surface changing is moved to a fixed position through a conveyer belt 2 to be positioned and fixed; and performing secondary sealing sanding treatment on the surface of the beryllium plate 1 after the surface is changed by the friction between the abrasive belt 3 and the surface of the beryllium plate 1 after the surface is changed. Wherein the sanding processing amount is 0.005 mm/time; and sanding for 3 times at each given sanding processing amount.
And step six, repeating the step four and the step five until the beryllium plate meeting the requirements is obtained, and then performing dust removal and ventilation and exhaust treatment.
In this embodiment, the total pass of the primary sealing sanding treatment and the secondary sealing sanding treatment is 12; the total processing amount of the primary sealing sanding treatment and the secondary sealing sanding treatment is 0.02 mm; the total amount was adjusted downward by 0.02 mm.
Through detection, each technical index of the beryllium plate surface treated by the embodiment is as follows:
(1) surface quality: the roughness Ra is 0.15 μm;
(2) the thickness dimension deviation is that-4% H is less than or equal to △ H and less than or equal to + 4% H;
(3) material utilization rate: 39 percent;
(4) the conditions of removing an oxide layer and surface defects on the surface of the beryllium plate are as follows: the surface oxide layer of the beryllium plate is thoroughly removed, and the surface defect removal rate is 97%;
(5) yield of cut product: 94 percent.
Example 3:
firstly, selecting a beryllium plate 1 to be processed and an abrasive belt 3 which is driven to operate by a motor according to an operation direction 4; and the beryllium plate 1 is horizontally placed on a conveyer belt 2, refer to fig. 1. Wherein the beryllium plate has the length of 200mm, the width of 100mm and the thickness of 2.0 mm; the abrasive belt is 500 meshes.
Secondly, vertically suspending an abrasive belt 3 on the horizontal plane of the conveying belt 1, and referring to fig. 1; after the gap between the horizontal plane of the conveyer belt 1 and the abrasive belt 3 is initially adjusted, the conveyer belt 3 after initial adjustment (i.e., the conveyer belt 2 rises according to the adjustment direction 6, and the gap between the horizontal plane of the conveyer belt 2 and the abrasive belt 3 is reduced) moves the horizontally placed beryllium plate 1 to a fixed position according to the transmission direction 5 for positioning and fixing, and refer to fig. 2. Wherein the gap is 2.0 mm.
Thirdly, performing primary sealing sanding treatment on the surface of the beryllium plate 1 through friction between the abrasive belt 3 and the surface of the beryllium plate 1; sanding amount is 0.01 mm/time; and sanding for 2 times at each given sanding processing amount.
Fourthly, adjusting the gap between the horizontal plane of the conveyer belt 2 and the abrasive belt 3 downwards (namely, the conveyer belt 2 rises according to the adjusting direction 6, and the gap between the horizontal plane of the conveyer belt 2 and the abrasive belt 3 is reduced), and then changing the plane of the beryllium plate; wherein, the clearance is adjusted downwards by 0.01mm every time, and the clearance sanding treatment is carried out for 2 times every time.
Fifthly, the beryllium plate 1 after surface changing is moved to a fixed position through a conveyer belt 2 to be positioned and fixed; and performing secondary sealing sanding treatment on the surface of the beryllium plate 1 after the surface is changed by the friction between the abrasive belt 3 and the surface of the beryllium plate 1 after the surface is changed. Wherein, the sanding processing amount is 0.01 mm/time; and sanding for 2 times at each given sanding processing amount.
And step six, repeating the step four and the step five until the beryllium plate meeting the requirements is obtained, and then performing dust removal and ventilation and exhaust treatment.
In this embodiment, the total pass of the primary sealing sanding treatment and the secondary sealing sanding treatment is 36; the total processing amount of the primary sealing sanding treatment and the secondary sealing sanding treatment is 0.18 mm; the gap was adjusted downward by a total amount of 0.18 mm.
Through detection, each technical index of the beryllium plate surface treated by the embodiment is as follows:
(1) surface quality: the roughness Ra is 0.3 mu m;
(2) the thickness dimension deviation is that-5% H is less than or equal to △ H and less than or equal to + 5% H;
(3) material utilization rate: 41 percent;
(4) the conditions of removing an oxide layer and surface defects on the surface of the beryllium plate are as follows: the surface oxide layer of the beryllium plate is thoroughly removed, and the surface defect removal rate is 98%;
(5) yield of cut product: 95 percent.
It will be evident to those skilled in the art that the embodiments of the present invention are not limited to the details of the foregoing illustrative embodiments, and that the embodiments of the present invention are capable of being embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units, modules or means recited in the system, apparatus or terminal claims may also be implemented by one and the same unit, module or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting, and although the embodiments of the present invention are described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A beryllium plate surface treatment method is characterized by comprising the following steps:
firstly, selecting a beryllium plate to be treated and an abrasive belt driven to operate by a motor; horizontally placing the beryllium plate on a conveyor belt;
secondly, vertically suspending the abrasive belt on the horizontal plane of the conveying belt; after the gap between the horizontal plane of the conveyer belt and the abrasive belt is initially adjusted, the horizontally placed beryllium plate is moved to a fixed position through the initially adjusted conveyer belt to be positioned and fixed;
thirdly, performing primary sealing sanding treatment on the surface of the beryllium plate through friction between the abrasive belt and the surface of the beryllium plate;
fourthly, adjusting the gap between the horizontal plane of the conveying belt and the abrasive belt downwards, and then changing the plane of the beryllium plate;
fifthly, the beryllium plate after surface changing is moved to a fixed position through a conveyer belt to be positioned and fixed; the abrasive belt rubs the surface of the beryllium plate after the surface is changed, and secondary sealing sanding treatment is carried out on the surface of the beryllium plate after the surface is changed;
and step six, repeating the step four and the step five until the beryllium plate meeting the requirements is obtained, and then performing dust removal and ventilation and exhaust treatment.
2. The method of claim 1, wherein the beryllium plate has a length of 120 to 200mm, a width of 20 to 100mm and a thickness of 0.1 to 2.0 mm; the abrasive belt is 200-500 meshes in model.
3. The process according to claim 1 or 2, wherein in step two, the size of the gap is equal to the thickness of the beryllium plate.
4. The process according to claim 1 or 2, wherein in the fourth step, the gap is adjusted to 0.005mm to 0.01mm for each down-regulation; and carrying out clearance sanding treatment for 2-4 times every time when the clearance sanding treatment is adjusted downwards.
5. The treatment method according to claim 1 or 2, wherein the process conditions of the primary seal sanding treatment and the secondary seal sanding treatment are as follows:
the sanding processing amount is 0.005 mm-0.01 mm/time; and sanding for 2-4 times at each given sanding processing amount.
6. The processing method according to claim 1 or 2, wherein in step six, the number of repetitions satisfies the following condition:
the total times of the primary sealing sanding treatment and the secondary sealing sanding treatment are 12-36; the total processing amount of the primary sealing sanding treatment and the secondary sealing sanding treatment is 0.02-0.18 mm; the total amount of the gap between the horizontal plane of the conveying belt and the abrasive belt is adjusted down to be 0.02-0.18 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850539.9A CN110744404A (en) | 2019-09-10 | 2019-09-10 | Beryllium plate surface treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850539.9A CN110744404A (en) | 2019-09-10 | 2019-09-10 | Beryllium plate surface treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110744404A true CN110744404A (en) | 2020-02-04 |
Family
ID=69276189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910850539.9A Pending CN110744404A (en) | 2019-09-10 | 2019-09-10 | Beryllium plate surface treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110744404A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816998A (en) * | 1970-05-18 | 1974-06-18 | Timesavers Inc | Method of and apparatus for rapidly abrading metal workpieces |
| JPS5845856A (en) * | 1981-09-14 | 1983-03-17 | Takegawa Tekko Kk | Top face grind type belt sander machine |
| CN102303274A (en) * | 2011-09-09 | 2012-01-04 | 山东浩器生物装备技术有限公司 | Ply surface treatment process for vacuum freeze drier |
| CN204183363U (en) * | 2014-09-04 | 2015-03-04 | 灵璧县晨阳木业有限公司 | A kind of sander |
| CN204339511U (en) * | 2014-11-19 | 2015-05-20 | 德清德沃装饰材料有限公司 | Roller-type wood skin sander |
| CN207593477U (en) * | 2017-11-27 | 2018-07-10 | 上海华银电器有限公司 | A kind of board surface processing device |
| CN109093538A (en) * | 2018-08-24 | 2018-12-28 | 成都时代立夫科技有限公司 | A kind of CMP pad treatment process |
-
2019
- 2019-09-10 CN CN201910850539.9A patent/CN110744404A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816998A (en) * | 1970-05-18 | 1974-06-18 | Timesavers Inc | Method of and apparatus for rapidly abrading metal workpieces |
| JPS5845856A (en) * | 1981-09-14 | 1983-03-17 | Takegawa Tekko Kk | Top face grind type belt sander machine |
| CN102303274A (en) * | 2011-09-09 | 2012-01-04 | 山东浩器生物装备技术有限公司 | Ply surface treatment process for vacuum freeze drier |
| CN204183363U (en) * | 2014-09-04 | 2015-03-04 | 灵璧县晨阳木业有限公司 | A kind of sander |
| CN204339511U (en) * | 2014-11-19 | 2015-05-20 | 德清德沃装饰材料有限公司 | Roller-type wood skin sander |
| CN207593477U (en) * | 2017-11-27 | 2018-07-10 | 上海华银电器有限公司 | A kind of board surface processing device |
| CN109093538A (en) * | 2018-08-24 | 2018-12-28 | 成都时代立夫科技有限公司 | A kind of CMP pad treatment process |
Non-Patent Citations (1)
| Title |
|---|
| 夏云等: "《机械制造技术——机械加工基础技能训练》", 31 August 2017, 北京理工大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104619657A (en) | Method and apparatus for processing edge of glass by using high-frequency induction heater | |
| CN110977673A (en) | Polishing and coating processing method for ultra-small prism | |
| CN109437581A (en) | A kind of production method of anti-dazzle 3D glass | |
| KR20140140585A (en) | Defect occurrence source identification method and conveying device maintenance method | |
| CN108220915B (en) | Micro-additive and micro-additive composite manufacturing method for preparation of graphical diamond film | |
| CN110744404A (en) | Beryllium plate surface treatment method | |
| CN115647007A (en) | Comprehensive recovery method of waste photovoltaic module | |
| CN116995143A (en) | Method and system for eliminating false star-shaped hidden cracks of battery piece EL | |
| CN213357352U (en) | Kiln multi-line photovoltaic glass production line | |
| CN103658898B (en) | Welding method of target assembly | |
| CN113199392A (en) | Machining process for improving parameters of 8-inch grinding disc | |
| CN111756326A (en) | Solar cell rapid light attenuation method and device | |
| US20170179326A1 (en) | System and method for mass-production of high-efficiency photovoltaic structures | |
| EP1202328A2 (en) | Quartz glass wafer support jig and method for producing the same | |
| CN216054744U (en) | Photovoltaic fluorine-containing back plate recovery processing device | |
| CN201717278U (en) | Automatic station device for solar silicon wafers | |
| CN210475839U (en) | Tunnel furnace type laser hot melting glass chamfering equipment | |
| JPH01176246A (en) | Method for forming thin film of tin oxide on surface of glass substrate | |
| CN111871950A (en) | Surface treatment device and process for graphite component of semiconductor ion implantation device | |
| CN110640385A (en) | Clamping device for preventing welding deformation of sheet parts | |
| CN221390029U (en) | Conveying device for metal plate machining | |
| CN101556931A (en) | Wafer cassette | |
| CN220733117U (en) | Light source plate paster transfer board | |
| CN217369555U (en) | Photovoltaic equipment rotary table top piece cleaning device | |
| CN217394525U (en) | Two-sided chamfer equipment of precision part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200204 |