CN101993661A - Grinding liquid for processing surface curvature radiuses of sapphires and preparation method - Google Patents
Grinding liquid for processing surface curvature radiuses of sapphires and preparation method Download PDFInfo
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- CN101993661A CN101993661A CN2009101045742A CN200910104574A CN101993661A CN 101993661 A CN101993661 A CN 101993661A CN 2009101045742 A CN2009101045742 A CN 2009101045742A CN 200910104574 A CN200910104574 A CN 200910104574A CN 101993661 A CN101993661 A CN 101993661A
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Abstract
The invention relates to a grinding liquid for processing surface curvature radiuses of sapphires and a preparation method. The grinding liquid is composed of grinding paste and a dispersion liquid with the weight proportion of 1:20, wherein the dispersion liquid comprises kerosene and vegetable oil with the weight proportion of 5:1, and the grinding paste comprises 80-100 parts of diamond micropowder, 4,000-5,000 parts of stearic acid, 200-500 parts of kerosene, 1-3 parts of ferric nitrate and 0.5-3 parts of phosphoric acid by weight. By adopting the grinding liquid in the invention for the fine surface curvature of a major-diameter sapphire lens, an obtained product has high surface quality, the processing state is stable, and requirements on subsequent polishing can be met; and moreover, the grinding liquid has the advantages of high processing efficiency, low cost and wide processing range.
Description
Technical field
The present invention relates to the lapping liquid that uses in a kind of major diameter sapphire lens radius of curvature surface finishing process, particularly a kind of lapping liquid and preparation method who is used to process the sapphire surface radius-of-curvature.
Background technology
It is good that the synthetic sapphire lens have light transmission, the hardness height, and wear-resistant, linear expansivity is little, and characteristics such as ultimate compression strength height and acid-alkali-corrosive-resisting are used very extensive.But, because synthetic sapphire has hardness height (9 grades of Mohs), fragility is big, characteristics such as crystalline anisotropy, its difficulty of processing is also quite big, and particularly high precision, best bright finish require the processing on the radius-of-curvature surface of sapphire lens.
Sapphire lens radius of curvature surface finishing mainly adopts the diadust resinoid bonded grinding tool or often adopts JR at present
2The resin abrasive tools of W7 (or trickleer powder).
In the course of processing, the contact area of workpiece and grinding tool constantly increases, because sapphire has hardness height (9 grades of Mohs), fragility is big, characteristics such as crystalline anisotropy, " grinding is motionless " phenomenon can appear, particularly in the precision work of major diameter sapphire lens, " grinding is motionless " phenomenon is more obvious.
If 1. increase the threshing of abrasive tools bond, to a certain degree reducing this phenomenon in the meeting, but because the threshing increase of grinding tool, the grinding tool loss rate is accelerated, because the loss of grinding tool, the processing axial line can be subjected to displacement deviation, and the lens radius of curvature value is constantly changed.Can cause when situation is serious that lens radius of curvature is overproof, manufacturing deficiency such as " top ", " pushing up protruding ", must adjust again lathe.Like this, the radius-of-curvature of sapphire lens is in the continuous variation in the course of processing always, can form a plurality of radius-of-curvature on a face when situation is serious, causes sapphire lens curved surface part facial contour degree seriously overproof.
If 2. prolong the grinding time, or strengthen grinding pressure, adopt resin abrasive tools processing also to occur bull ring grinding layer latch up phenomenon easily.The powder of jewel embeds in the wedding agent space of bull ring, has so both ground motionlessly, can't move back bits again.If, can be easy to cause lens radius of curvature overproof at this moment to grinding layer is carried out reconditioning, the center displacement bias, defectives such as projection, circle silk appear in the lens centre.
In sum, adopt the diadust resinoid bonded grinding tool to carry out that the precision work efficient on major diameter sapphire lens curvature surface is low, machining state is unstable, has had a strong impact on follow-up polishing process simultaneously.Because shot abrasive grinding efficient height, there are not phenomenons such as easy obstruction and threshing be weak.
Summary of the invention
The purpose of this invention is to provide a kind of lapping liquid and preparation method who is used to process the sapphire surface radius-of-curvature, adopt lapping liquid of the present invention to be used for major diameter sapphire lens curvature surface finishing, the surface quality height of products obtained therefrom, machining state is stable, can satisfy follow-up polishing requirements, and working (machining) efficiency height, cheap is arranged, the advantage that work range is wide.
Technical scheme of the present invention is: the lapping liquid that is used to process the sapphire surface radius-of-curvature is made up of lapping paste and dispersion liquid, its lapping paste: the weight ratio of dispersion liquid=1: 20, described dispersion liquid comprises kerosene and vegetables oil, the weight ratio of its kerosene and vegetables oil is: 5: 1, described lapping paste are made up of diadust, stearic acid, kerosene, iron nitrate, phosphoric acid, and the weight part of its each component is:
80～100 parts of diadusts;
4000～5000 parts of stearic acid;
200～500 parts of kerosene;
1～3 part of iron nitrate;
0.5～3 part of phosphoric acid.
Described vegetables oil is sesame oil or salad oil.
Be used to process the preparation method of the lapping liquid of sapphire surface radius-of-curvature, following steps arranged:
(1) amount according to Buddha's warrior attendant powder in the proportioning of this lapping liquid takes by weighing diadust;
(2) under 100 ℃ temperature, toasted 120 minutes, take out subsequently in air and cooled off 30 minutes;
(3) the described diadust piece of step (2) is ground dispersion, be no more than 2 grams at every turn, the time is no less than 30 minutes;
(4) add in the kerosene ultrasonic dispersing 60 minutes in the diadust after the grinding;
(5) with pouring stearic acid in step (4) the gained liquid, mix;
(6) with step (5) gained liquid 100 ℃ of following heated and boiled, put into cold water cooling and coagulate paste, obtain lapping paste;
(7) in lapping paste: the ratio of the weight percent of kerosene=1: 20, the preparation polishing fluid constantly stirs in the layoutprocedure, and drips vegetables oil;
(8) proportioning according to this lapping liquid adds iron nitrate, stirs;
(9) again according to the proportioning adding phosphoric acid stirring of this lapping liquid, promptly get lapping liquid of the present invention.
Vegetables oil is sesame oil or salad oil described in the step (7).
The present invention adopts lapping liquid to carry out the precision work on major diameter sapphire lens curvature surface, diadust evenly, stably is dispersed in the lapping liquid, form suspension liquid, make sapphire lens precision machined surface reach minute surface quality and steady quality, enhance productivity simultaneously, reduce cost, realize batch machining.Stearic acid mainly plays the effect of dispersion agent and lubricant, and iron nitrate plays the oxygenant effect, can improve mill efficiency, and phosphoric acid plays each stable components of solution, to prevent its decomposition.It mainly is that the dissolving lapping paste are made lapping liquid for a kerosene, plays cooling effect simultaneously in the course of processing.Sesame oil (or salad oil) mainly is the flowability that strengthens lapping liquid inside, and the interior abrasive material content of unit volume is equated.
Reagent of the present invention is commercially available product of the same name, wherein:
Diadust purity is not less than 99%.
Stearic acid is an analytical pure, and purity is not less than 99%.
Kerosene need be used filter paper filtering, removes granule foreign wherein, can change " soft or hard " degree of lapping paste.The kerosene amount is many, lapping paste are soft, in follow-up process of lapping, the lapping paste loss is fast, its utilization ratio that includes diamond abrasive is also just low more, and impure (jewel powder, grinding tool cast) also increases gradually in it simultaneously, " pulling ", " scuffing " phenomenon occur at the lens grinding face easily, so lapping liquid only reuses generally and just renews for 2～3 times.And the kerosene in the lapping paste increases, can effectively improve the smooth finish on surface, reduce the temperature on grinding tool surface, but the kerosene amount too much can reduce mill efficiency, " split " phenomenon because of the grinding force deficiency causes lens surface " firmly " when serious, therefore lapping paste in the processing of sapphire lens: the weight percent of kerosene was by 1: 20 proportioning.
Iron nitrate is an analytical pure, and purity is not less than 98%.
Phosphoric acid is analytical pure, and purity is not less than 98%.
Specific implementation method
Dispose lapping liquid of the present invention according to following table:
Unit: gram
Take by weighing each component according to the described proportioning of table 1, according to following Process configuration lapping liquid of the present invention: the condensation of weighing → toast → grind → ultrasonic dispersing → obtaining liq → boil → preparation luminous intensity distribution liquid → preservation.
Embodiment
(1) weigh: the clean blank sheet of paper of pad last layer on the electronics Libra, take out diadust with spoon and be contained on the blank sheet of paper weighing 8～10g.
(2) baking: the blank sheet of paper that will fill diadust is placed on the heating platform together, and baking is 120 minutes under 100 ℃ temperature, takes out subsequently in air and cools off 30 minutes.
(3) grind: grind in the agate mortar of medium size, the diadust piece that will harden grinds dispersion, is no more than 2 grams at every turn, and the time is no less than 30 minutes.
(4) ultrasonic dispersing: the diadust after will grinding places beaker, adds kerosene 20～50g, ultrasonic dispersing 60 minutes.
(5) obtaining liq: pour 400～500g stearic acid in the liquid after will surpassing into, mix.
(6) boil condensation: with the liquid for preparing, on 100 ℃ heating platform, boil, put into the cold water cooling, obtain lapping paste until condensation.
(7) preparation luminous intensity distribution liquid: by lapping paste: the ratio of kerosene=1: 20, prepare polishing fluid.Requirement stirs, and adds 5～8g vegetables oil.
(8) add iron nitrate in proportion, stir; Add phosphoric acid in proportion and stir, promptly get the lapping liquid that is used to process the sapphire surface radius-of-curvature of the present invention.
(9) preserve: labelled, carry out sign, it is stand-by to place sombre place to preserve.
Adopt the method for diamond grinding fluid processing sapphire lens radius of curvature of the present invention and the method for diadust resinoid bonded grinding tool processing sapphire lens radius of curvature to contrast as follows:
Conclusion: adopt the diadust lapping liquid to substitute the outsourcing grinding tool and carry out major diameter sapphire lens curvature surface finishing, not only the surface quality height satisfies follow-up polishing, and it is cheap simultaneously, and adaptability is strong, and work range is wide.
Claims (4)
1. lapping liquid that is used to process the sapphire surface radius-of-curvature, it is characterized in that described lapping liquid is made up of lapping paste and dispersion liquid, its lapping paste: the weight ratio of dispersion liquid=1: 20, described dispersion liquid comprises kerosene and vegetables oil, the weight ratio of its kerosene and vegetables oil is: 5: 1, described lapping paste are made up of diadust, stearic acid, kerosene, iron nitrate, phosphoric acid, and the weight part of its each component is:
80～100 parts of diadusts;
4000～5000 parts of stearic acid;
200～500 parts of kerosene;
1～3 part of iron nitrate;
0.5～3 part of phosphoric acid.
2. lapping liquid according to claim 1 is characterized in that: described vegetables oil is sesame oil or salad oil.
3. the method for preparing the described lapping liquid of claim 1 is characterized in that following steps are arranged:
(1) proportioning according to the described Buddha's warrior attendant powder of claim 1 takes by weighing diadust;
(2) under 100 ℃ temperature, toasted 120 minutes, take out subsequently in air and cooled off 30 minutes;
(3) the described diadust piece of step (2) is ground dispersion, be no more than 2 grams at every turn, the time is no less than 30 minutes;
(4) add in the kerosene ultrasonic dispersing 60 minutes in the diadust after the grinding;
(5) with pouring stearic acid in step (4) the gained liquid, mix;
(6) with step (5) gained liquid 100 ℃ of following heated and boiled, put into cold water cooling and coagulate paste, obtain lapping paste;
(7) in lapping paste: the ratio of the weight percent of kerosene=1: 20, the preparation polishing fluid constantly stirs in the layoutprocedure, and drips vegetables oil;
(8) add iron nitrate according to the described proportioning of claim 1, stir;
(9) add phosphoric acid according to the described proportioning of claim 1 again and stir, promptly get lapping liquid of the present invention.
4. method according to claim 3 is characterized in that: vegetables oil is sesame oil or salad oil described in the step (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910104574 CN101993661B (en) | 2009-08-10 | 2009-08-10 | Grinding liquid for processing surface curvature radiuses of sapphires and preparation method |
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| CN 200910104574 CN101993661B (en) | 2009-08-10 | 2009-08-10 | Grinding liquid for processing surface curvature radiuses of sapphires and preparation method |
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| CN101993661A true CN101993661A (en) | 2011-03-30 |
| CN101993661B CN101993661B (en) | 2013-07-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160208A (en) * | 2013-03-01 | 2013-06-19 | 青岛恒汇帕特模具科技有限公司 | Man-made diamond grinding paste |
| CN103692330A (en) * | 2013-12-18 | 2014-04-02 | 蓝思科技股份有限公司 | Round hole polishing process of sapphire/porcelain |
| CN104974714A (en) * | 2014-04-03 | 2015-10-14 | 昭和电工株式会社 | Polishing composition and method for polishing substrate using the same |
| CN106497433A (en) * | 2016-08-30 | 2017-03-15 | 天通银厦新材料有限公司 | A kind of sapphire lapping liquid |
| CN107722837A (en) * | 2017-10-12 | 2018-02-23 | 东风精密铸造安徽有限公司 | A kind of cast steel gear fusible pattern buffing wax |
| CN111100558A (en) * | 2019-12-25 | 2020-05-05 | 浙江星星科技股份有限公司 | Rare earth polishing solution for polishing glass panel and polishing method using rare earth polishing solution |
| CN114921182A (en) * | 2022-05-31 | 2022-08-19 | 重庆川仪自动化股份有限公司 | Grinding polishing paste for sealing groove of gem valve seat and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1569396A (en) * | 2003-07-16 | 2005-01-26 | 上海新华霞实业有限公司 | Grind process for optical sapphire crystal substrate |
| CN1833816A (en) * | 2005-11-23 | 2006-09-20 | 周海 | Nano-glass supersmooth processing technique of sapphire crystal sheet |
| CN101332584A (en) * | 2008-08-05 | 2008-12-31 | 天津市工具研究所有限公司 | Grinding method of sheet metal |
-
2009
- 2009-08-10 CN CN 200910104574 patent/CN101993661B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1569396A (en) * | 2003-07-16 | 2005-01-26 | 上海新华霞实业有限公司 | Grind process for optical sapphire crystal substrate |
| CN1833816A (en) * | 2005-11-23 | 2006-09-20 | 周海 | Nano-glass supersmooth processing technique of sapphire crystal sheet |
| CN101332584A (en) * | 2008-08-05 | 2008-12-31 | 天津市工具研究所有限公司 | Grinding method of sheet metal |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160208A (en) * | 2013-03-01 | 2013-06-19 | 青岛恒汇帕特模具科技有限公司 | Man-made diamond grinding paste |
| CN103692330A (en) * | 2013-12-18 | 2014-04-02 | 蓝思科技股份有限公司 | Round hole polishing process of sapphire/porcelain |
| CN103692330B (en) * | 2013-12-18 | 2016-04-06 | 蓝思科技股份有限公司 | The circular hole glossing of a kind of sapphire, pottery |
| CN104974714A (en) * | 2014-04-03 | 2015-10-14 | 昭和电工株式会社 | Polishing composition and method for polishing substrate using the same |
| CN104974714B (en) * | 2014-04-03 | 2019-03-08 | 昭和电工株式会社 | The grinding method of abrasive composition and the substrate using the abrasive composition |
| CN106497433A (en) * | 2016-08-30 | 2017-03-15 | 天通银厦新材料有限公司 | A kind of sapphire lapping liquid |
| CN107722837A (en) * | 2017-10-12 | 2018-02-23 | 东风精密铸造安徽有限公司 | A kind of cast steel gear fusible pattern buffing wax |
| CN111100558A (en) * | 2019-12-25 | 2020-05-05 | 浙江星星科技股份有限公司 | Rare earth polishing solution for polishing glass panel and polishing method using rare earth polishing solution |
| CN114921182A (en) * | 2022-05-31 | 2022-08-19 | 重庆川仪自动化股份有限公司 | Grinding polishing paste for sealing groove of gem valve seat and preparation method thereof |
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| CN101993661B (en) | 2013-07-24 |
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