CN101786802B - Preparation method for glass volume meter with high-precision reading display - Google Patents
Preparation method for glass volume meter with high-precision reading display Download PDFInfo
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- CN101786802B CN101786802B CN 200910263940 CN200910263940A CN101786802B CN 101786802 B CN101786802 B CN 101786802B CN 200910263940 CN200910263940 CN 200910263940 CN 200910263940 A CN200910263940 A CN 200910263940A CN 101786802 B CN101786802 B CN 101786802B
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- volume meter
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Abstract
The invention discloses a preparation method for a glass volume meter with high-precision reading display, in which film plating treatment is carried out on the inner wall of the prepared semi-finished product of the glass volume meter. The film plating treatment comprises the following steps: A, cleaning and drying: cleaning, drying and cooling the semi-finished product of the glass volume meter; B, inner wall film coating: evenly coating a layer of film coating liquid on the inner wall of the semi-finished product of the glass volume meter, and naturally drying for 1h after film coating, wherein the proportion of the film coating liquid is as follows: 4-5% of siloxane copolymer, 0.1-0.2% of borax and balance of water; and C, baking: placing the coated glass volume meter in an oven to bake for 80-120 min under the temperature of 380-450 DEG C, and naturally cooling down after baking. By using the glass volume meter produced by the invention, liquid does not hang on the wall, the liquid level is smooth and level, the measurement accuracy can reach 0.0001 grade, and the product percent of pass is high, thus greatly improving the yield of A-grade products.
Description
Technical field
The present invention relates to a kind of glasswork working method, particularly can fully eliminate the volumetric glass measuring error, improve the preparation method for glass volume meter with of the high-precision reading demonstration of its measuring accuracy, belong to field of measuring techniques.
Background technology
Volumetric glass (comprising graduated cylinder, measuring cup etc.) is one of a kind of measuring products by state compulsion monitoring, and it has very widely purposes in industries such as chemical industry, biology, pharmacy, school, scientific research institutions, is kind of an important survey instrument.The accuracy of volumetric glass is to determine accurately prerequisite of correlation test result, and the main component of present employed volumetric glass is generally high borosilicate, and they all have error to a certain degree.The generation of error is mainly caused by the reason of three aspects:, and first wall built-up error is because the power that attracts each other of solution molecule (being generally water molecules) and glass wall on the solid-liquid contact face, forms larger surface tension greater than the magnetism between the water molecules.So in actual measurement, the aqueous solution forms the liquid level of a spill in volumetric glass, is exactly so-called wall built-up.And capillary size changes with solution and the different of temperature again, so that the wall built-up amount of liquid can't accurately be measured, produces error.Wall built-up also can make the observer be difficult for differentiating the actual liquid level of liquid, reads to become another source that error produces and estimate, and is also referred to as error in dipping.In addition, the precision that also has an effects limit volumetric glass, be exactly volumetric glass be in electric smelter or vapourizing furnace, to draw to form, Glass tubing inevitably has in various degree inhomogeneous and rough, even produce irregular oval striped at inwall, thereby form the eyesight error, perhaps volumetric glass surely carve read in, produce systematic error.
All there is certain error in the volumetric glass of producing according to prior art.According to its error size, volumetric glass is divided into again A level and B level.Wherein, precision is higher, and the one-tenth product qualification rate of the A level product that error is less is lower, but demand is rising year by year.So, manage to improve the precision of volumetric glass, a large amount of, fast, produce at low cost and make the volumetric glass of the low error of high precision, become the technical problem that needs to be resolved hurrily.
Summary of the invention
The present invention is used for overcoming the defective of prior art and a kind of preparation method for glass volume meter with that can fully eliminate the high-precision reading demonstration of measuring error, raising measuring accuracy is provided.
The alleged problem of the present invention is solved by following technical proposals:
The preparation method for glass volume meter with that a kind of high-precision reading shows, its special feature be, the volumetric glass work in-process inwall that it will prepare carries out coating film treatment again, and described coating film treatment follows these steps to carry out:
A. cleaning, drying: with the volumetric glass work in-process clean, oven dry, cooling;
B. inner wall film-coating: volumetric glass work in-process inwall is applied one deck coating liquid uniformly, the rear seasoning 1 hour of filming, described coating liquid proportioning is as follows: silicone copolymers 4-5%, borax 0.1-0.2%, excess water;
C. toast: the volumetric glass of filming is placed in the baking oven toast, temperature 380-450 ℃, the time is 80～120 minutes, naturally cooling after the baking.
The preparation method for glass volume meter with that above-mentioned high-precision reading shows, described silicone copolymers is viscosity 500-3000mm
3The liquid of/S, it is to be made by dimethyl siloxane units and methyl-polyoxy alkylidene unit copolymerization, its chemical structural formula is:
The span of m, n is 1～5 in the formula, and molecular weight is 20000.
The inventive method is applicable to simple glass and high temp glass measuring device, it will carry out coating film treatment again according to the volumetric glass inwall that prior art is produced, through after the coating film treatment, can reduce the inhomogeneous and rough phenomenon that the aqueous solution produces in the tension force of glass surface and volumetric glass making processes, thereby effectively eliminate the wall built-up error, reduce vision and systematic error to the impact of measuring result, obviously improve the measuring accuracy of volumetric glass.Test shows, adopts not wall built-up of volumetric glass liquid that present method produces, and liquid level is straight, and its measuring accuracy can reach very much level, and product percent of pass is high, has greatly improved the qualification rate of category-A product, and market outlook are very considerable.
Embodiment
The gordian technique of the inventive method is that the volumetric glass inwall that will produce according to existing method carries out coating film treatment again, described coating film treatment is first the volumetric glass inwall to be applied one deck coating liquid uniformly, siloxanes in the coating liquid is met water decomposition generation condensation reaction, make coating liquid form the coatings that one deck is combined closely with it at the volumetric glass inwall through high bake again, this coatings can reduce the inhomogeneous and rough phenomenon that the aqueous solution produces in the tension force of glass surface and volumetric glass making processes, detect error thereby effectively eliminate.Described coating liquid proportioning following (mass percent): silicone copolymers 4-5%, borax 0.1-0.2%, excess water; Described silicone copolymers is the commercially available prod, and its form is viscosity 500-3000mm
3The yellow of/S or light brown liquid, it is made by dimethyl siloxane units and methyl-polyoxy alkylidene unit copolymerization, and proportion is 1.02, can be water-soluble, in alcohol and the acetone, its chemical structural formula is:
In the formula, the value of a, b selects 1～5.
Several specific embodiments below are provided:
Embodiment 1: get silicone copolymers 4%, borax 0.15% and excess water and stir, be coated in volumetric glass work in-process inwall through cleaning, drying with spray or the mode of soaking figure, the rear seasoning 1 hour of filming, then the volumetric glass of filming is placed in the baking oven and toast, 380 ℃ of temperature, time is 85 minutes, naturally cooling after the baking.
Embodiment 2: get silicone copolymers 5%, borax 0.2% and excess water and stir, be coated in volumetric glass work in-process inwall through cleaning, drying with spray or the mode of soaking figure, the rear seasoning 1 hour of filming, then the volumetric glass of filming is placed in the baking oven and toast, 420 ℃ of temperature, time is 120 minutes, naturally cooling after the baking.
Embodiment 3: get silicone copolymers 4.5%, borax 0.1% and excess water and stir, be coated in volumetric glass work in-process inwall through cleaning, drying with spray or the mode of soaking figure, the rear seasoning 1 hour of filming, then the volumetric glass of filming is placed in the baking oven and toast, 450 ℃ of temperature, time is 100 minutes, naturally cooling after the baking.
Claims (1)
1. the preparation method for glass volume meter with that high-precision reading shows is characterized in that, the volumetric glass work in-process inwall that it will prepare carries out coating film treatment again, and described coating film treatment follows these steps to carry out:
A. cleaning, drying: with the volumetric glass work in-process clean, oven dry, cooling;
B. inner wall film-coating: volumetric glass work in-process inwall is applied one deck coating liquid uniformly, the rear seasoning 1 hour of filming, described coating liquid proportioning is as follows: silicone copolymers 4-5%, borax 0.1-0.2%, excess water;
C. toast: the volumetric glass of filming is placed in the baking oven toast, temperature 380-450 ℃, 80～120 minutes time, naturally cooling after the baking;
Described silicone copolymers is viscosity 500-3000 m m
3The liquid of/S, it is to be made by dimethyl siloxane units and methyl-polyoxy alkylidene unit copolymerization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910263940 CN101786802B (en) | 2009-12-30 | 2009-12-30 | Preparation method for glass volume meter with high-precision reading display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910263940 CN101786802B (en) | 2009-12-30 | 2009-12-30 | Preparation method for glass volume meter with high-precision reading display |
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| Publication Number | Publication Date |
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| CN101786802A CN101786802A (en) | 2010-07-28 |
| CN101786802B true CN101786802B (en) | 2013-01-02 |
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| CN 200910263940 Active CN101786802B (en) | 2009-12-30 | 2009-12-30 | Preparation method for glass volume meter with high-precision reading display |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621240A (en) * | 2003-11-24 | 2005-06-01 | 上海美浓安中印刷材料有限公司 | Process for transferring on glass surface |
| CN101585666A (en) * | 2009-06-22 | 2009-11-25 | 浙江新康药用玻璃有限公司 | A kind of inner surface coating technique of medicinal glass bottle |
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2009
- 2009-12-30 CN CN 200910263940 patent/CN101786802B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621240A (en) * | 2003-11-24 | 2005-06-01 | 上海美浓安中印刷材料有限公司 | Process for transferring on glass surface |
| CN101585666A (en) * | 2009-06-22 | 2009-11-25 | 浙江新康药用玻璃有限公司 | A kind of inner surface coating technique of medicinal glass bottle |
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| CN101786802A (en) | 2010-07-28 |
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Effective date of registration: 20220706 Address after: 050090 Room 201, unit 5, building 11, No. 216, Huai'an West Road, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Xinghua Glass Instrument Co.,Ltd. Address before: 055581 Xitou Industrial Zone, Zhengang Road, Shijiazhuang City, Hebei Province Patentee before: Xiao Xin |