CN113121126A - Manufacturing process of novel high borosilicate chromatography expansion cylinder - Google Patents
Manufacturing process of novel high borosilicate chromatography expansion cylinder Download PDFInfo
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- CN113121126A CN113121126A CN201911408337.5A CN201911408337A CN113121126A CN 113121126 A CN113121126 A CN 113121126A CN 201911408337 A CN201911408337 A CN 201911408337A CN 113121126 A CN113121126 A CN 113121126A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0252—Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/90—Plate chromatography, e.g. thin layer or paper chromatography
- G01N30/94—Development
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- Organic Chemistry (AREA)
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Abstract
The invention discloses a manufacturing process of a novel high borosilicate chromatography expansion cylinder, which is mainly used for manufacturing an inverted U-shaped high borosilicate chromatography expansion cylinder and an M-shaped high borosilicate chromatography expansion cylinder.
Description
Technical Field
The invention relates to the field of glass instruments for analysis, in particular to a manufacturing process of a novel high borosilicate chromatography expansion cylinder.
Background
The existing chromatographic cylinder is mostly formed by adopting common glass matched with glass powder for sintering, and the cylinder body is easy to deform or damage in the production process due to the large thermal expansion coefficient of the common glass, so that the product percent of pass and the production benefit are influenced.
The chromatographic cylinder is formed by sintering common glass and a glass adhesive, but the finished product has short service life and is easy to leak due to poor high temperature resistance and acid and alkali resistance of the used adhesive. In addition, because the hot melting temperature of the used adhesive is similar to the melting point of common glass, the glass cylinder body can deform to a certain degree while the adhesive is melted; furthermore, the transparency of the common glass material is not high, and the produced chromatographic cylinder finished product cannot meet the use requirements of laboratory personnel of scientific research units on the transparency and durability of the chromatographic development cylinder.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a manufacturing process of a novel high borosilicate chromatography expansion cylinder, and aims to solve the problems of high defective rate, poor high temperature resistance, acid and alkali resistance and low transparency of the existing chromatography cylinder in the background art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a manufacturing process of an n-shaped high borosilicate chromatography expansion cylinder, which comprises the following steps:
1) hot bending: cutting a high borosilicate glass plate with a corresponding size according to the specification requirement of a product, putting the high borosilicate glass plate into a heating electric furnace for heating treatment, taking the high borosilicate glass plate out after the temperature of the high borosilicate glass plate is raised to 500 +/-5 ℃, putting the high borosilicate glass plate on a cuboid graphite mold A, enabling the mold graphite mold A to be positioned in the middle of the high borosilicate glass plate, then heating the high borosilicate glass plates on two sides of the top end of the graphite mold A, enabling the high borosilicate glass plates to be softened and parallelly drooped and pasted on the side surface of the graphite mold A, and forming a U-shaped glass groove semi-finished product;
2) and (3) heat preservation treatment: taking out the semi-finished product of the reverse-U-shaped glass tank, putting the semi-finished product of the reverse-U-shaped glass tank into an electric heating furnace for heat preservation at the temperature of 520 +/-5 ℃ for 30min, stopping heating, taking out the semi-finished product of the reverse-U-shaped glass tank after the semi-finished product of the reverse-U-shaped glass tank is cooled to room temperature, and taking out the semi-finished product of the reverse-U-shaped glass tank after two sides along the length direction are;
3) and (3) sintering: uniformly coating a glass adhesive prepared from glass powder and sodium hydroxide on a polished surface of the cleaned n-shaped glass groove semi-finished product, attaching a high borosilicate glass side plate A with a corresponding size and four corners provided with chamfers to the n-shaped glass groove semi-finished product, clamping the high borosilicate glass side plate A with the corresponding size and four corners provided with chamfers by using a clamp, putting the high borosilicate glass side plate A into an electric heating furnace, heating to 550 +/-5 ℃, naturally cooling to room temperature, and taking out to obtain a chromatography development cylinder semi-finished product;
4) and (3) grinding and chamfering the opening and the bottom of the semi-finished product of the chromatography expansion cylinder, then cleaning, and covering the upper borosilicate glass top plate A to obtain the finished product of the inverted-U-shaped high borosilicate chromatography expansion cylinder.
The invention also provides a manufacturing process of the M-shaped high borosilicate chromatography expansion cylinder, which comprises the following steps:
1) hot bending: cutting a high borosilicate glass plate with a corresponding size according to the specification requirement of a product, putting the high borosilicate glass plate into a heating electric furnace for heating treatment, taking out the high borosilicate glass plate after the temperature of the high borosilicate glass plate is raised to 500 +/-5 ℃, putting the high borosilicate glass plate on a cuboid graphite mould B with a concave arc-shaped groove at the top end, enabling the graphite mould B to be positioned at the middle part of the high borosilicate glass plate, then heating the high borosilicate glass plates at two sides of the top end of the graphite mould B, softening the high borosilicate glass plates, parallelly drooping and pasting the high borosilicate glass plates on the side surface of the mould to form a reversed U-shaped glass groove, then heating the glass plate positioned right above the arc-shaped groove, pressing the glass plate right above the arc-shaped groove into the concave arc-shaped groove by using a V-shaped pressing die after the high borosilicate glass plate is heated to;
2) and (3) heat preservation treatment: taking out the semi-finished product of the M-shaped glass groove, putting the semi-finished product into an electric heating furnace for heat preservation at the temperature of 520 +/-5 ℃ for 30min, stopping heating, taking out the semi-finished product of the M-shaped glass groove after the semi-finished product of the M-shaped glass groove is cooled to room temperature, and taking out the semi-finished product of the M-shaped glass groove after two sides of the semi-finished product of the M-shaped glass groove are flattened, polished and cleaned along;
3) and (3) sintering: uniformly coating a glass adhesive prepared from glass powder and sodium hydroxide on a polished surface of the cleaned M-shaped glass tank semi-finished product, attaching a high borosilicate glass side plate B with a corresponding size and four corners provided with chamfers to the M-shaped glass tank semi-finished product, clamping the high borosilicate glass side plate B with the chamfers by using a clamp, putting the high borosilicate glass side plate B into an electric heating furnace, heating to 550 +/-5 ℃, naturally cooling to room temperature, and taking out to obtain a chromatography developing cylinder semi-finished product;
4) and (3) grinding and chamfering the opening and the bottom of the semi-finished chromatography expansion cylinder, cleaning, and covering the upper borosilicate glass top plate B to obtain the M-shaped high borosilicate chromatography expansion cylinder finished product.
Preferably, the preparation method of the glass adhesive comprises the steps of blending granular sodium hydroxide and deionized water according to a ratio of 5:1 to obtain paste, adding glass powder with the same mass as the paste, and uniformly mixing to obtain a finished product of the glass adhesive.
The invention has the beneficial effects that: the high borosilicate glass is adopted in the design, the specially-made glass adhesive is matched, the product quality of the chromatography expansion cylinder is improved, and the finished chromatography expansion cylinder is strong in acid and alkali resistance, high in hardness and high in transparency, and can observe the condition of the internal climbing plate more visually.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a graphite mold A;
fig. 2 is a schematic structural diagram (a transparent shell is illustrated) of a manufacturing process of the novel high borosilicate chromatography expansion cylinder provided in embodiment 1;
FIG. 3 is a schematic structural view of a graphite mold B;
FIG. 4 is a schematic view of a V-shaped die;
fig. 5 is a schematic structural diagram (a transparent shell) of a manufacturing process of the novel high borosilicate chromatography expansion cylinder provided in embodiment 2.
Description of reference numerals:
1-graphite mould A, 2-n-shaped glass groove semi-finished product, 3-high borosilicate glass side plate A, 4-high borosilicate glass top plate A, 5-arc groove, 6-graphite mould B, 7-V-shaped pressing mould, 8-M-shaped glass groove semi-finished product, 9-high borosilicate glass side plate B, 10-high borosilicate glass top plate B, 11-protrusion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A manufacturing process of an inverted U-shaped high borosilicate chromatography expansion cylinder comprises the following steps:
1) hot bending: cutting high borosilicate glass plates with corresponding sizes according to the specification requirements of products, putting the high borosilicate glass plates into a heating electric furnace for heating treatment, taking the high borosilicate glass plates out after the temperature of the high borosilicate glass plates is raised to 500 +/-5 ℃, putting the high borosilicate glass plates on a cuboid graphite mold, enabling the mold to be positioned in the middle of the high borosilicate glass plates, then heating the high borosilicate glass plates on two sides of the top end of the graphite mold A1 (shown in figure 1), enabling the high borosilicate glass plates to be softened and to be parallelly drooped and pasted on the side surface of the graphite mold A, and forming a reverse-U-shaped glass groove semi-finished product 2;
2) and (3) heat preservation treatment: taking out the semi-finished product 2, placing in an electric heating furnace for heat preservation (the heat preservation temperature is 520 +/-5 ℃, the heat preservation time is 30min, then stopping heating, taking out after the semi-finished product 2 is cooled to room temperature, then carrying out smooth polishing and cleaning on two sides of the semi-finished product along the length direction, and taking out for standby;
3) and (3) sintering: uniformly coating a glass adhesive prepared from glass powder and sodium hydroxide on the polished surface of the cleaned n-shaped glass groove semi-finished product 2, attaching a high borosilicate glass side plate A3 with corresponding size and four corners provided with chamfers to the n-shaped glass groove semi-finished product 2, clamping the high borosilicate glass side plate A3 with the corresponding size and four corners provided with chamfers by using a clamp, putting the high borosilicate glass side plate into an electric heating furnace, heating to 550 +/-5 ℃, naturally cooling to room temperature, and taking out to obtain a chromatography development cylinder semi-finished product;
4) and (3) carrying out polishing and chamfering treatment on the opening and the bottom of the semi-finished product of the chromatography expansion cylinder, then cleaning, and covering a high borosilicate glass top plate A4 to obtain a finished product of the inverted high borosilicate chromatography expansion cylinder, which is shown in figure 2.
The invention also provides a manufacturing process of the M-shaped high borosilicate chromatography expansion cylinder, which comprises the following steps:
1) hot bending: cutting a high borosilicate glass plate with a corresponding size according to the specification requirement of a product, putting the high borosilicate glass plate into a heating electric furnace for heating treatment, taking the high borosilicate glass plate out after the temperature of the high borosilicate glass plate is raised to 500 +/-5 ℃, putting the high borosilicate glass plate on a cuboid graphite mould B6 (shown in figure 3) with a concave arc-shaped groove 5 at the top end, enabling a graphite mould 6 to be positioned at the middle part of the high borosilicate glass plate, then heating the high borosilicate glass plates at two sides of the top end of the graphite mould B6, softening and parallelly drooping the high borosilicate glass plates and attaching the softened high borosilicate glass plates to the side surface of a graphite mould B6 to form a reversed-U-shaped glass groove, then heating the glass plate positioned right above the arc-shaped groove 5, after heating to the temperature, pressing the glass plate positioned right above the arc-shaped groove 3 into the concave arc-shaped groove 3 by using a V-shaped pressing die 7 (shown;
2) and (3) heat preservation treatment: taking out the semi-finished product 8 of the M-shaped glass groove, putting the semi-finished product into an electric heating furnace for heat preservation at the temperature of 520 +/-5 ℃ for 30min, stopping heating, taking out the semi-finished product 8 of the M-shaped glass groove after cooling to room temperature, flattening and polishing two side edges along the length direction, cleaning and taking out the semi-finished product for later use;
3) and (3) sintering: uniformly coating a glass adhesive prepared from glass powder and sodium hydroxide on the polished surface of the cleaned M-shaped glass groove semi-finished product 8, attaching a high borosilicate glass side plate B9 with corresponding size and four corners being provided with chamfers to the M-shaped glass groove semi-finished product 8, fixing the two side plates on the M-shaped glass groove semi-finished product 8 by using a clamp, putting the M-shaped glass groove semi-finished product into an electric heating furnace, heating to 550 +/-5 ℃, naturally cooling to room temperature, and taking out to obtain a chromatography development cylinder semi-finished product;
4) and (3) grinding and chamfering the opening and the bottom of the semi-finished chromatography expansion cylinder, cleaning, and covering a top plate B10 of the high borosilicate glass to obtain a finished M-shaped high borosilicate chromatography expansion cylinder (see figure 5), wherein an upward bulge 11 is formed at the bottom of the finished M-shaped high borosilicate chromatography expansion cylinder.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (3)
1. A manufacturing process of an inverted U-shaped high borosilicate chromatography expansion cylinder is characterized by comprising the following steps:
1) hot bending: cutting a high borosilicate glass plate with a corresponding size according to the specification requirement of a product, putting the high borosilicate glass plate into a heating electric furnace for heating treatment, taking the high borosilicate glass plate out after the temperature of the high borosilicate glass plate is raised to 500 +/-5 ℃, putting the high borosilicate glass plate on a cuboid graphite mold A, enabling the mold graphite mold A to be positioned in the middle of the high borosilicate glass plate, then heating the high borosilicate glass plates on two sides of the top end of the graphite mold A, enabling the high borosilicate glass plates to be softened and parallelly drooped and pasted on the side surface of the graphite mold A, and forming a U-shaped glass groove semi-finished product;
2) and (3) heat preservation treatment: taking out the semi-finished product of the reverse-U-shaped glass tank, putting the semi-finished product of the reverse-U-shaped glass tank into an electric heating furnace for heat preservation at the temperature of 520 +/-5 ℃ for 30min, stopping heating, taking out the semi-finished product of the reverse-U-shaped glass tank after the semi-finished product of the reverse-U-shaped glass tank is cooled to room temperature, and taking out the semi-finished product of the reverse-U-shaped glass tank after two sides along the length direction are;
3) and (3) sintering: uniformly coating a glass adhesive prepared from glass powder and sodium hydroxide on a polished surface of the cleaned n-shaped glass groove semi-finished product, attaching a high borosilicate glass side plate A with a corresponding size and four corners provided with chamfers to the n-shaped glass groove semi-finished product, clamping the high borosilicate glass side plate A with the corresponding size and four corners provided with chamfers by using a clamp, putting the high borosilicate glass side plate A into an electric heating furnace, heating to 550 +/-5 ℃, naturally cooling to room temperature, and taking out to obtain a chromatography development cylinder semi-finished product;
4) and (3) grinding and chamfering the opening and the bottom of the semi-finished product of the chromatography expansion cylinder, then cleaning, and covering the upper borosilicate glass top plate A to obtain the finished product of the inverted-U-shaped high borosilicate chromatography expansion cylinder.
2. A manufacturing process of an M-shaped high borosilicate chromatography expansion cylinder is characterized by comprising the following steps:
1) hot bending: cutting a high borosilicate glass plate with a corresponding size according to the specification requirement of a product, putting the high borosilicate glass plate into a heating electric furnace for heating treatment, taking out the high borosilicate glass plate after the temperature of the high borosilicate glass plate is raised to 500 +/-5 ℃, putting the high borosilicate glass plate on a cuboid graphite mould B with a concave arc-shaped groove at the top end, enabling the graphite mould B to be positioned at the middle part of the high borosilicate glass plate, then heating the high borosilicate glass plates at two sides of the top end of the graphite mould B, softening the high borosilicate glass plates, parallelly drooping and pasting the high borosilicate glass plates on the side surface of the mould to form a reversed U-shaped glass groove, then heating the glass plate positioned right above the arc-shaped groove, pressing the glass plate right above the arc-shaped groove into the concave arc-shaped groove by using a V-shaped pressing die after the high borosilicate glass plate is heated to;
2) and (3) heat preservation treatment: taking out the semi-finished product of the M-shaped glass groove, putting the semi-finished product into an electric heating furnace for heat preservation at the temperature of 520 +/-5 ℃ for 30min, stopping heating, taking out the semi-finished product of the M-shaped glass groove after the semi-finished product of the M-shaped glass groove is cooled to room temperature, and taking out the semi-finished product of the M-shaped glass groove after two sides of the semi-finished product of the M-shaped glass groove are flattened, polished and cleaned along;
3) and (3) sintering: uniformly coating a glass adhesive prepared from glass powder and sodium hydroxide on a polished surface of the cleaned M-shaped glass tank semi-finished product, attaching a high borosilicate glass side plate B with a corresponding size and four corners provided with chamfers to the M-shaped glass tank semi-finished product, clamping the high borosilicate glass side plate B with the chamfers by using a clamp, putting the high borosilicate glass side plate B into an electric heating furnace, heating to 550 +/-5 ℃, naturally cooling to room temperature, and taking out to obtain a chromatography developing cylinder semi-finished product;
4) and (3) grinding and chamfering the opening and the bottom of the semi-finished chromatography expansion cylinder, cleaning, and covering the upper borosilicate glass top plate B to obtain the M-shaped high borosilicate chromatography expansion cylinder finished product.
3. The manufacturing process of claim 1 or 2, wherein the glass adhesive is prepared by blending granular sodium hydroxide and deionized water at a ratio of 5:1 to obtain a paste, adding glass powder with the same mass as the paste, and uniformly mixing to obtain a finished glass adhesive product.
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| CN201911408337.5A CN113121126A (en) | 2019-12-31 | 2019-12-31 | Manufacturing process of novel high borosilicate chromatography expansion cylinder |
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Application publication date: 20210716 |
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| RJ01 | Rejection of invention patent application after publication |