CN108890547A - The preparation method and polishing method of vitreous silica water-less environment fixed grain polishing wheel - Google Patents

The preparation method and polishing method of vitreous silica water-less environment fixed grain polishing wheel Download PDF

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Publication number
CN108890547A
CN108890547A CN201810738128.6A CN201810738128A CN108890547A CN 108890547 A CN108890547 A CN 108890547A CN 201810738128 A CN201810738128 A CN 201810738128A CN 108890547 A CN108890547 A CN 108890547A
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CN
China
Prior art keywords
polishing wheel
vitreous silica
less environment
fixed grain
preparation
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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
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CN201810738128.6A
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Chinese (zh)
Inventor
杨炜
刘文俊
唐辉洋
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Xiamen University
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Xiamen University
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Priority to CN201810738128.6A priority Critical patent/CN108890547A/en
Publication of CN108890547A publication Critical patent/CN108890547A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18—Wheels of special form
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/12—Condensation polymers of aldehydes or ketones
    • C04B26/122—Phenol-formaldehyde condensation polymers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00362—Friction materials, e.g. used as brake linings, anti-skid materials

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The preparation method and polishing method of vitreous silica water-less environment fixed grain polishing wheel are related to hard brittle material processing.Abrasive material, additive and binder are mixed, Muffle furnace drying, ball milling, mixing are put into, the powder mix that will be obtained imports in cylindrical die, and the hydraulic coupling for applying 7MPa is pressed into pellet shape, demoulding places into Muffle furnace and fires to get vitreous silica water-less environment fixed grain polishing wheel.Polishing wheel is bonded in stainless steel tool end surface, is mounted on numerically-controlled machine tool, raster paths is taken to carry out whole face processing to vitreous silica.Using fixed grain polishing wheel, glass outer layer is constantly realized with abrasive material and is chemically reacted under water-less environment；The main function of additive is to be crushed in process, chip space is generated after broken, while the hardness of broken additive is bigger than the hardness of sintered binder, can scrape binder, be conducive to the further exposed of abrasive material.

Description

The preparation method and polishing method of vitreous silica water-less environment fixed grain polishing wheel
Technical field
The present invention relates to hard brittle material processing, consolidate mill more particularly, to the vitreous silica water-less environment under water-less environment The preparation method and polishing method of grain polishing wheel.
Background technique
Fused silica glass is widely used in manufacturing window and shields piece by its good physical and chemical properties, and Fused silica glass (vitreous silica) belongs to difficult processing hard brittle material, is traditionally using grinding and to polish to realize high surface With sub-surface quality.The grinding stage includes fixed grain grinding and free abrasive grain grinding, is missed primarily to reducing surface precision Difference and roughness, but either refine or roughly grind (including ductility model) unavoidably to will appear surface failure of rock, surface residual The defects of residue stress, surface plasticity flowing and sub-surface damage.It is general using polishing in order to remove the defect of grinding stage remnants Glass is further processed.Traditional polishing mainly utilizes the rare earth and metal oxide, mixing lower than glass hard (HRC65Yi Shang) Deionized water and certain chemical additive carry out material removal using mechanochemistry cutting mechanisms, to obtain undamaged glass Glass surface.Although free abrasive grain polishing technology is widely used in optical glass producing, there is also some for it Significant disadvantage.Firstly, randomness and glass-abrasive grain-polishing pad that free abrasive grain is moved in polishing process are in polishing solution The physics and chemical interaction of middle complexity, it is difficult to establish an accurate Material removal model, make it that can not become a determination Property polishing technology (Yang Wei, Guo Yinbiao, Xu Qiao, wait superfinishing polish in influence [J] of edge effect to material removal amount swash by force Light and the particle beams, 2008 (10):1653-1657.(Yang Wei,Guo Yinbiao,Xu Qiao,et al.Edge effects on material removal amount in ultra-precise polishing process.High Power Laser and Particle Beams,2008(10):1653-1657)；Secondly, free abrasive grain polishing can be in glass Surface generates the hydration layer of several nm to several hundred nm, and the mechanical chemical properties and glass body material for being hydrated floor have the area of essence Not, to reduce optical property (Li Y, Hou J, Xu Q, the et al.The characteristics of of glass optics polished with a polyurethane pad[J].Optics Express,2008,16(14):10285- 10293)；Furthermore polishing solution will cause environmental pollution, and only a small amount of abrasive grain participates in material removal, to cause Lot of materials waste.
Domestic and foreign scholars have carried out the research of fixed grain polishing technology, to can deterministically control material in the polishing stage Removal is also avoided that abrasive material wastes while can obtain efficient removal rate, obtains the optical glass surface of high quality.It is domestic right Few (Tian Y B, Zhou L, Shimizu J, et al.Elimination of is studied in fixed grain polishing technology surface scratch/texture on the surface of single crystal Si substrate in chemo-mechanical grinding(CMG)process[J].Applied Surface Science,2009,255(7): 4205-4211), a significant reason is that the polishing wheel formula of fixed grain polishing and sintering process are immature, the U.S., day This and Ukraine all block this technology.Therefore the fixed grain polishing wheel of development of new also becomes research consolidation The key of Abrasive Polishing.The fixed grain polishing technology that the external numerous scholars of comparison carry out, the invention can be real under water-less environment The fixed grain polishing of existing vitreous silica, and very big advantage is embodied, surface surface precision and roughness convergence rate are significant It improves, and polishing wheel is not crushed, even wearing.This invention has domestic vitreous silica Ultra-precision Turning field critically important Promotion meaning.
Summary of the invention
It is an object of the invention in order to solve free abrasive grain polishing present in randomness, abrasive material waste and generate water The problems such as closing layer, provides the preparation method of vitreous silica water-less environment fixed grain polishing wheel.
Another object of the present invention is to provide the polishing methods of vitreous silica water-less environment fixed grain polishing wheel.
Specific step is as follows for the preparation method of the vitreous silica water-less environment fixed grain polishing wheel：
Abrasive material, additive and binder are mixed, Muffle furnace drying, ball milling are put into, mixing mixes obtained powder Body imports in cylindrical die, and the hydraulic coupling for applying 7MPa is pressed into pellet shape, demoulding, places into Muffle furnace and fires to get molten Fused silica water-less environment fixed grain polishing wheel.
The mass percent of the abrasive material, additive and binder can be abrasive material be 70%, additive 15%, binder It is 15%；The purity of abrasive material can be 98% or more CeO2Abrasive material, average particle size are 2.0~2.5 μm；Mill can be used in the abrasive material Vitreous silica is cut, the diameter of the grinding vitreous silica can beThickness can be 10mm；Master can be selected in the additive Wanting composition is the hollow glass micropearl of borosilicate, and granularity is 10~250 μm.Thermosetting phenolic tree can be used in the binder Rouge, solidification temperature can be 150 DEG C.The temperature of the drying can be 100 DEG C, and the time of drying can be 2h；The Muffle furnace is fired Time can be 8h.
The diameter of obtained vitreous silica water-less environment fixed grain polishing wheel can beThickness can be 4mm；Not Initial roughness can be 250~300nm before processing, and face type PV value is less than 0.5 μm.Vitreous silica fixes clamping in work with thick iron block Make platform, and grinding is carried out to it with polishing wheel.Machined parameters can be：Speed of mainshaft 155r/min, rotating speed of table 145r/ Min, process time 70min.
Specific step is as follows for the polishing method of the vitreous silica water-less environment fixed grain polishing wheel：
Polishing wheel is bonded in stainless steel tool end surface, is mounted on numerically-controlled machine tool, takes raster paths to tekite English carries out whole face processing.
Pellet polishing wheel can be used in the polishing wheel.
The present invention uses fixed grain polishing wheel, and glass outer layer is constantly realized with abrasive material and chemically reacted under water-less environment； The main function of additive is to be crushed in process, chip space is generated after broken, while broken additive is hard Degree is bigger than the hardness of sintered binder, can scrape binder, be conducive to the further exposed of abrasive material.
The present invention has following significant effect：Polishing wheel firing time process is short, can be mass-produced.Polish grinding Fused silica glass afterwards is polished relative to polyurethane polishing pad free abrasive grain, and fixed grain polishing embodies very big advantage, Surface surface precision and roughness convergence rate significantly improve, and buffing wheel is not crushed, even wearing；Vitreous silica surface without The surface layer defects such as pit, scratch, micro-crack and hydration layer.Select hardness and the comparable CeO of fused silica glass hardness2Mill Material reduces caused mechanical damage when abrasive polishing.
Detailed description of the invention
Fig. 1 is the machining sketch chart of the polishing method of vitreous silica water-less environment fixed grain polishing wheel of the present invention. In Fig. 1,1- polishing wheel, 2- stainless steel tool heads, 3- vitreous silica workpiece.
Fig. 2 is the raster paths processing of the polishing method of vitreous silica water-less environment fixed grain polishing wheel of the present invention Trajectory diagram.
Fig. 3 is temperature-heating time control figure that polishing wheel is fired.
Fig. 4 is the roughness figure of contourgraph detection.Glass surface minimal roughness Ra=after processing is shown by Fig. 4 1.7nm。
Specific embodiment
Following embodiment will the present invention is further illustrated in conjunction with attached drawing.
Specific step is as follows for the preparation method embodiment of the vitreous silica water-less environment fixed grain polishing wheel：
Abrasive material, additive and binder are mixed, Muffle furnace drying, ball milling are put into, mixing mixes obtained powder Body imports in cylindrical die, and the hydraulic coupling for applying 7MPa is pressed into pellet shape, demoulding, places into Muffle furnace and fires to get molten Fused silica water-less environment fixed grain polishing wheel.
The mass percent of the abrasive material, additive and binder be abrasive material be 70%, additive 15%, binder are 15%；The CeO that the purity of abrasive material is 98% or more2Abrasive material, average particle size are 2.0~2.5 μm；The abrasive material is using grinding melting Quartz, the diameter for being ground vitreous silica areWith a thickness of 10mm；It is borosilicate that the additive, which selects main ingredient, The hollow glass micropearl of hydrochlorate, granularity are 10~250 μm.The binder uses thermosetting phenolic resin, solidification temperature 150 ℃.The temperature of the drying is 100 DEG C, and the time of drying is 2h；The time that the Muffle furnace is fired is 8h.
The diameter of obtained vitreous silica water-less environment fixed grain polishing wheel isWith a thickness of 4mm；It is undressed Preceding initial roughness is 250~300nm, and face type PV value is less than 0.5 μm.Vitreous silica fixes clamping in workbench with thick iron block, And grinding is carried out to it with polishing wheel.Machined parameters can be：Speed of mainshaft 155r/min, rotating speed of table 145r/min, Process time 70min.
Specific step is as follows for the polishing method of the vitreous silica water-less environment fixed grain polishing wheel：
Polishing wheel is bonded in stainless steel tool end surface, is mounted on numerically-controlled machine tool, takes raster paths to tekite English carries out whole face processing.
The polishing wheel uses pellet polishing wheel.
Fixed grain polishing wheel is fabricated to embodiment shown in Fig. 1 and 2.Polish wheel diameterThickness 4mm. It is ground vitreous silica diameterThickness 10mm, undressed preceding initial roughness are 250~300nm, and face type PV value is less than 0.5um.Vitreous silica fixes clamping in workbench with thick iron block, and carries out grinding to it with polishing wheel of the invention.Add Work parameter：Speed of mainshaft 155r/min, rotating speed of table 145r/min, process time 70min.Fig. 3 is the temperature that polishing wheel is fired Degree-heating time control figure, Fig. 4 are that roughness figure (Britain Taylor Hope is gloomy, the PGI1240) measurement of contourgraph detection is coarse Degree, Ra=1.7nm show the vitreous silica after processing without broken, nothing by the exterior view after the processing of microscope photographing vitreous silica The surface blemishes such as pit and no marking.

Claims (10)

1. the preparation method of vitreous silica water-less environment fixed grain polishing wheel, it is characterised in that specific step is as follows for it：
Abrasive material, additive and binder are mixed, Muffle furnace drying is put into, ball milling mixes, and the powder mix that will be obtained is led Enter in cylindrical die, the hydraulic coupling for applying 7MPa is pressed into pellet shape, demoulding, places into Muffle furnace and fires to get tekite English water-less environment fixed grain polishing wheel.
2. the preparation method of vitreous silica water-less environment fixed grain polishing wheel as described in claim 1, it is characterised in that described The mass percent of abrasive material, additive and binder be abrasive material be 70%, additive 15%, binder 15%.
3. the preparation method of vitreous silica water-less environment fixed grain polishing wheel as described in claim 1, it is characterised in that abrasive material Purity be 98% or more CeO2Abrasive material, average particle size are 2.0~2.5 μm.
4. the preparation method of vitreous silica water-less environment fixed grain polishing wheel as described in claim 1, it is characterised in that described Abrasive material uses grinding vitreous silica, and the diameter of the grinding vitreous silica isWith a thickness of 10mm.
5. the preparation method of vitreous silica water-less environment fixed grain polishing wheel as described in claim 1, it is characterised in that described It is the hollow glass micropearl of borosilicate that additive, which selects main ingredient, and granularity is 10~250 μm.
6. the preparation method of vitreous silica water-less environment fixed grain polishing wheel as described in claim 1, it is characterised in that described Binder uses thermosetting phenolic resin, and solidification temperature is 150 DEG C.
7. the preparation method of vitreous silica water-less environment fixed grain polishing wheel as described in claim 1, it is characterised in that described The temperature of drying is 100 DEG C, and the time of drying is 2h；The time that the Muffle furnace is fired is 8h.
8. the preparation method of vitreous silica water-less environment fixed grain polishing wheel as described in claim 1, it is characterised in that made The diameter of vitreous silica water-less environment fixed grain polishing wheel beWith a thickness of 4mm；The thick iron block of vitreous silica Fixed clamping carries out grinding to it in workbench, and with polishing wheel；Machined parameters are：Speed of mainshaft 155r/min, work Platform revolving speed 145r/min, process time 70min.
9. the polishing method of vitreous silica water-less environment fixed grain polishing wheel, it is characterised in that specific step is as follows for it：
Polishing wheel is bonded in stainless steel tool end surface, is mounted on numerically-controlled machine tool, take raster paths to vitreous silica into The processing of row whole face.
10. the polishing method of vitreous silica water-less environment fixed grain polishing wheel as claimed in claim 9, it is characterised in that described Polishing wheel uses pellet polishing wheel.
CN201810738128.6A 2018-07-06 2018-07-06 The preparation method and polishing method of vitreous silica water-less environment fixed grain polishing wheel Pending CN108890547A (en)

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CN201810738128.6A CN108890547A (en) 2018-07-06 2018-07-06 The preparation method and polishing method of vitreous silica water-less environment fixed grain polishing wheel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113950390A (en) * 2019-06-27 2022-01-18 株式会社东京钻石工具制作所 Synthetic grindstone

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6213860B1 (en) * 1998-02-04 2001-04-10 Unicorn Abrasives Limited Grinding wheel
CN103737499A (en) * 2014-01-08 2014-04-23 苏州赛力精密工具有限公司 End face super grinding special metal ceramic CBN (Cubic Boron Nitride) grinding wheel and preparation method thereof
CN104400671A (en) * 2014-10-23 2015-03-11 秦科 High-polishing grinding tool and manufacturing method thereof
CN105922144A (en) * 2016-05-13 2016-09-07 王博 Pore-forming agent of superhard material grinding tool and preparing method of pore-forming agent
CN206527650U (en) * 2017-03-06 2017-09-29 蓝思科技（长沙）有限公司 Globoidal glass polishing tool and CNC burnishing devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6213860B1 (en) * 1998-02-04 2001-04-10 Unicorn Abrasives Limited Grinding wheel
CN103737499A (en) * 2014-01-08 2014-04-23 苏州赛力精密工具有限公司 End face super grinding special metal ceramic CBN (Cubic Boron Nitride) grinding wheel and preparation method thereof
CN104400671A (en) * 2014-10-23 2015-03-11 秦科 High-polishing grinding tool and manufacturing method thereof
CN105922144A (en) * 2016-05-13 2016-09-07 王博 Pore-forming agent of superhard material grinding tool and preparing method of pore-forming agent
CN206527650U (en) * 2017-03-06 2017-09-29 蓝思科技（长沙）有限公司 Globoidal glass polishing tool and CNC burnishing devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113950390A (en) * 2019-06-27 2022-01-18 株式会社东京钻石工具制作所 Synthetic grindstone
CN113950390B (en) * 2019-06-27 2023-03-31 株式会社东京钻石工具制作所 Synthetic grindstone

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