KR101411469B1 - Strengthening heat treatment anti glare cover glass manufacturing installations and the process of manufacture and the Strengthening heat treatment anti glare cover glass - Google Patents
Strengthening heat treatment anti glare cover glass manufacturing installations and the process of manufacture and the Strengthening heat treatment anti glare cover glass Download PDFInfo
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- KR101411469B1 KR101411469B1 KR1020140050268A KR20140050268A KR101411469B1 KR 101411469 B1 KR101411469 B1 KR 101411469B1 KR 1020140050268 A KR1020140050268 A KR 1020140050268A KR 20140050268 A KR20140050268 A KR 20140050268A KR 101411469 B1 KR101411469 B1 KR 101411469B1
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- inorganic binder
- transparent inorganic
- secondary heating
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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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
Abstract
Description
The present invention relates to an apparatus for manufacturing an anti-glare cover glass using thermo plasticity, a method for manufacturing the same, and an anti-glare cover glass using the same. More specifically, A transparent inorganic binder made of silica gel (SiO 2 ) having the same material as that of the inorganic material is coated, so that fusion bonding with the substrate is surely secured as compared with other coating layers, and high durability, high transmittance and high toughness can be ensured, To an apparatus for manufacturing an anti-glare cover glass using thermo-plasticization capable of maximizing an anti-glare effect without making the anti-glare effect, and an anti-glare cover glass using the thermo-plasticization.
Commercial displays are often installed and operated in brightly lit areas. In such a case, the illumination is hardly formed on the surface of the LCD screen, so that it is difficult to recognize the information displayed on the LCD. In order to prevent this, it is necessary to optically disperse the incident light of the external illumination to secure visibility of the LCD screen .
Conventional anti-glare techniques include an etching method, a spray method, and a film method.
The anti-glare cover glass of the etching method is a method of implementing the anti-glare because the surface of the tempered glass is etched with hydrofluoric acid to form the engraved angle. In such an etching type cover glass, the condensing effect of the fluorescent light is very strong due to the condensing effect by the recessed portion, so that the fatigue of the eyes is rapidly increased and the outdoor advertising effect is deteriorated due to the incidence phenomenon.
Spray-type anti-glare cover glass is a method of coating an organic binder on tempered glass. Such a cover glass has a problem that its durability is very weak due to the nature of the organic binder and is also damaged by slight scratches.
A film type anti-glare cover glass is a method in which a film is attached to a tempered glass and an organic binder is coated on the film. Such a cover glass is not only poor in durability due to the characteristics of the organic binder but also has a problem that the surface is very weak in durability due to the film coated on the tempered glass and the surface is damaged even with slight scratches. In addition, a film-type anti-glare cover glass causes a moire phenomenon and causes a deterioration in image quality.
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide an apparatus for manufacturing an anti-glare cover glass using thermo-plasticizing so that a transparent inorganic binder is reliably fused to a substrate, To provide an anti-glare cover glass.
Another object of the present invention is to provide a transparent inorganic binder which is made of silica gel (SiO 2 ) having the same material as that of the substrate, so that fusion bonding with the substrate is ensured and a high durability, high transmittance and high toughness The present invention provides an anti-glare cover glass manufacturing apparatus using the same, and an anti-glare cover glass using the thermo-plasticization.
It is still another object of the present invention to provide an apparatus for manufacturing an anti-glare cover glass using a thermo plasticizer so as to maximize the anti glare effect without deteriorating the image quality, a method of manufacturing the same, and an anti- .
It is another object of the present invention to provide an apparatus for manufacturing an anti-glare cover glass using thermo-plasticization in which radiant heat emitted from a secondary heating heater is forcedly circulated inside the secondary heating furnace, Anti-glare cover glass.
It is still another object of the present invention to provide an apparatus for manufacturing an anti-glare cover glass using thermo-plasticization so as to confirm the overheat of a drive motor for driving a first-order conveying conveyor and a second- To provide an anti-glare cover glass.
In order to accomplish the above object, the present invention provides an apparatus for manufacturing an anti-glare cover glass using thermosetting, comprising: a first cleaning unit for cleaning and cleaning edges of a substrate cut to a set size; A printing unit installed on one side of the first cleaning unit for applying a cleaned substrate and coating a transparent inorganic binder on the upper surface of the substrate; A primary heating unit installed on one side of the printing unit and heating a substrate coated with a transparent inorganic binder so that the coated transparent inorganic binder is fused to the surface of the substrate; A secondary heating unit installed on one side of the primary heating unit and charged with a substrate having passed through the primary heating unit and heated to a temperature higher than that of the primary heating unit to fix the transparent inorganic binder to the surface of the substrate; A primary cooling unit installed on one side of the secondary heating unit, a substrate through which the secondary heating unit is inserted, and quenching the introduced substrate; A secondary cooling unit installed at one side of the primary cooling unit and charged with a substrate having passed through the primary cooling unit to slowly cool the substrate; And a second cleaning unit installed at one side of the secondary cooling unit and cleaning the substrate passed through the secondary cooling unit.
Another feature of the apparatus for producing an anti-glare cover glass using thermo plasticity according to the present invention is that the printing unit comprises a screen plate opposed to the top of the substrate, a squeegee holder provided on the screen plate and conveyed in the screen plate, And a squeegee which is bonded along the squeegee holder and prints the transparent inorganic binder injected into the screen plate on the surface of the substrate to form a coating layer.
Another feature of the apparatus for producing an anti-glare cover glass using thermo plasticity of the present invention is that the coating layer of the transparent inorganic binder is coated on the surface of the substrate to a thickness of 5 to 20 탆.
Another feature of the apparatus for producing an anti-glare cover glass using thermo plasticity of the present invention is that the transparent inorganic binder is made of the same material as the material of the substrate.
Another feature of the apparatus for producing an anti-glare cover glass using thermo plasticity according to the present invention is that the secondary heating section includes a secondary heating furnace which is provided at one side of the printing section and into which a transparent inorganic binder coating layer is formed, And a secondary heating conveyor installed in the secondary heating furnace for heating the substrate conveyed along the secondary conveying conveyor to fuse the transparent inorganic binder coating layer to the surface of the substrate, And a convection heat generating part installed in the secondary heating furnace and forcibly circulating the air in the secondary heating furnace to convert radiant heat in the secondary heating furnace into convection heat.
Another feature of the apparatus for producing an anti-glare cover glass using thermo plasticity according to the present invention is that the air duct is connected to the convection heat generating unit and a plurality of air diffusing units are provided in the blowing duct, So that the secondary diffuses into the inside of the heating part.
Another feature of the apparatus for producing an anti-glare cover glass using thermo plasticity according to the present invention is that the air diffusing unit includes an air diffusion body connected to the air blowing duct and having a conical shape into which air supplied from the air blowing duct flows, A spiral air hole formed around the air diffusion body and a spiral guide groove formed along the spiral air hole around the air diffusion body to guide the spraying direction of the air ejected from the spiral air hole in the spiral direction.
To achieve the above and / or other aspects and advantages, embodiments of the present invention provide a method of manufacturing an anti-glare cover glass using thermo-plasticization, comprising: cutting a substrate into a predetermined size when a substrate in a plate form is supplied; A first-order step of polishing the edge after polishing the substrate when the substrate is cut; A printing step of screen printing the transparent inorganic binder on the upper surface of the substrate while the squeegee is transported along the screen plate when the first-order substrate is transferred to the screen plate side, thereby forming a coating layer; A first heating step in which a substrate on which a coating layer is formed with a transparent inorganic binder is charged into a primary heating furnace and heated to 300 to 500 占 폚 so that the primary heating is performed; A secondary heating step in which the primary heated substrate is charged into a secondary heating furnace and heated to 400 to 900 DEG C so that the secondary heating is performed; A primary cooling step in which the secondary heated substrate is firstly cooled to 250 to 350 占 폚 when the primary cooling furnace is charged; A second cooling step in which the first cooled substrate is secondarily cooled to 70 to 80 캜 when the substrate is put in the second cooling furnace; And a secondary cleaning step of cleaning the second cooled substrate again.
Another feature of the method for producing an anti-glare cover glass using thermo plasticity of the present invention is that in the printing step, the coating layer of the transparent inorganic binder is coated on the surface of the substrate to a thickness of 5 to 20 탆.
Another feature of the method for producing an anti-glare cover glass using thermo plasticity of the present invention is that in the second heating step, the air in the secondary heating furnace is forcibly circulated by the convection heat generating portion provided in the secondary heating furnace, Converts radiant heat inside the furnace into convection heat.
The anti-glare cover glass using thermo plasticity of the present invention for achieving the same purpose as described above is characterized by being made by the manufacturing apparatus of
As described above, the present invention provides a printing apparatus comprising: a printing unit installed on one side of a first cleaning unit for applying a cleaned substrate and coating a transparent inorganic binder on an upper surface of the loaded substrate; and a transparent inorganic binder A first heating section for heating the coated transparent inorganic binder to be fused to the surface of the substrate, a substrate provided on one side of the primary heating section, a substrate having passed through the primary heating section, and heated to a temperature higher than the primary heating section And a secondary heating section for fixing the transparent inorganic binder to the surface of the substrate. Therefore, the transparent inorganic binder is reliably fused to the substrate by first preheating the first heating part to 300-500 ° C and second preheating the second heating part to 400-900 ° C, so that the high- Since the transparent inorganic binder is fused to the substrate surface, the substrate surface has the same high surface strength as the substrate surface. Therefore, since the surface strength of the anti-glare cover glass is increased by thermosetting, the scratching phenomenon and the surface peeling phenomenon do not easily occur.
In the glass substrate of the present invention, a coating layer is formed of a transparent inorganic binder made of silica gel (SiO 2 ). Therefore, transparent inorganic binder mainly composed of silica gel is coated on the substrate of the glass material, so that it is more firmly fused with the substrate than the coating layer of other materials, has high hardness, and ensures high durability, high transmittance and high toughness by the granules of silica gel Not only is it possible, it also has excellent anti-glare effect.
In the present invention, the thickness of the coating layer made of a transparent inorganic binder is coated on the surface of the substrate to a thickness of 5 to 20 탆. If the thickness of the coating layer is less than 5 mu m, the coating effect is not obtained due to the marked formation and the sparkle phenomenon. If the thickness of the coating layer exceeds 20 占 퐉, the material cost is increased and the transparency of the substrate is lowered and the image quality is deteriorated. Therefore, the thickness of the coating layer is preferably 5 to 20 占 퐉, and in this case, the anti-glare effect can be maximized without deteriorating the image quality.
The secondary heating furnace of the present invention is provided with a convection heat generating section for forcibly circulating the air in the secondary heating furnace to convert radiant heat in the secondary heating furnace into convection heat. Therefore, radiant heat radiated from the secondary heating heater is forcibly circulated through the inside of the secondary heating furnace by the convection heat generating portion, and this convection heating evenly raises the entire interior of the secondary heating furnace in a short period of time. Therefore, since the entire inside of the secondary heating furnace is uniformly heated due to the convection heat generating part of the present invention, the entire coating layer of the substrate is heated to a uniform temperature, so that the fusion of the coating layer is uniformly performed.
The temperature discoloring layer whose color changes according to the temperature can be applied to the outer case of the first difference conveyor and the driving motor for driving the second difference conveyor of the present invention. Therefore, the temperature change of the outer case of the driving motor can be confirmed, and the overheating of the driving motor can be confirmed beforehand to prevent damage.
In the convection heat generating portion of the present invention, an air diffusing portion for diffusing the air supplied from the air blowing duct into the secondary heating furnace is provided. The air diffusing portion is connected to the air blowing duct, A plurality of spiral air holes formed around the air diffusion body, a plurality of spiral air holes formed around the air diffusion body around the air diffusion body to guide the spray direction of air ejected from the spiral air holes in a spiral direction, Guide groove. Therefore, the air injected through the spiral air holes and the spiral guide grooves of the air diffusion portion is injected into the secondary heating furnace while the vortex is formed while rotating, whereby the radiant heat emitted from the secondary heating heater is uniformly injected into the secondary heating furnace So that the temperature inside the secondary heating furnace is uniformly maintained.
Also, a coating layer formed by mixing 96 to 98 wt% of chromium oxide (Cr 2 O 3 ) and 2 to 4 wt% of titanium dioxide (TiO 2 ) may be coated on the periphery of the air diffusion portion. This coating layer is excellent in corrosion resistance, scratch resistance, abrasion resistance, impact resistance and durability, thereby preventing the air diffusion portion from being oxidized and extending the life span of the present invention by preventing oxidation of the
The air diffuser of the present invention is made of nodular cast iron. Since the nodular cast iron has a small notch effect, the stress concentration phenomenon is reduced, and the strength and toughness are greatly improved. Thus, the life of the air diffusion portion is maximized and the maintenance cost is reduced accordingly.
1 is a schematic view showing an apparatus for producing an anti-glare cover glass using thermo-plasticity according to the present invention.
2 is a schematic perspective view showing the printing unit of the present invention.
Figure 3 is a schematic cross-sectional view of Figure 2
4 is a schematic view showing a primary heating portion, a secondary heating portion, a primary cooling portion, and a secondary cooling portion
5 is a schematic cross-sectional view showing the secondary heating portion
6 is a schematic cross-sectional view showing another embodiment of the secondary heating portion
7 is a cross-sectional view showing the air diffusion portion
8 is a partial enlarged cross-sectional view showing an anti-glare cover glass using thermo-plasticity of the present invention
FIG. 9 is a schematic photograph showing the superiority of the present invention related to the phenomenon of image formation
10 is a schematic view showing the superiority of the present invention related to the sparkle phenomenon
11 is a schematic photograph comparing the sharpness between the present invention and a third party product
12 is a flowchart sequentially showing the method for producing an anti-glare cover glass using thermo-plasticity according to the present invention
Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic view showing an apparatus for manufacturing an anti-glare cover glass using thermo plasticity of the present invention, FIG. 2 is a schematic perspective view showing a printing unit of the present invention, and FIG. 3 is a schematic side sectional view of FIG. 5 is a schematic cross-sectional view showing a secondary heating portion, and Fig. 6 is a schematic cross-sectional view showing another embodiment of the secondary heating portion. Fig. 4 is a schematic view showing a primary heating portion, a secondary heating portion, a primary cooling portion, to be. FIG. 7 is a cross-sectional view showing an air diffusion part, FIG. 8 is a partially enlarged cross-sectional view showing an anti-glare cover glass using thermo plasticity of the present invention, and FIG. 9 is a schematic photograph showing excellence of the present invention related to an image forming phenomenon. Fig. 10 is a schematic photograph showing the superiority of the present invention relating to the sparkle phenomenon, Fig. 11 is a schematic photograph comparing the sharpness between the present invention and a third party product, Fig. 12 is a photograph of the anti- And the manufacturing method is shown in sequence.
The apparatus for manufacturing an anti-glare cover glass according to the present invention comprises a
The
The
When the
Such a cleaning liquid diffusing body is connected to a cleaning liquid supply pipe (not shown), and a cleaning liquid supplied from the cleaning liquid supply pipe is introduced. The
Such a washing liquid diffusing unit is a means for rotating the sprayed washing liquid while making the spraying force of the washing liquid strong. Therefore, the cleaning liquid injected through the spiral cleaning liquid hole and the spiral guide groove of the cleaning liquid diffusing portion is sprayed into the
The
The
The
Therefore, the thickness of the
Transparent, inorganic binder (2), it includes the silica gel (SiO 2). Therefore, since the transparent
The
The
6 and 7, the air in the
The
The
The
The
The
The
The
Therefore, radiant heat emitted from the
Therefore, since the entire interior of the
The
The
The upper end of the
A
Therefore, the air injected through the
The
Since nodular cast iron is a cast iron in which graphite is spherically crystallized during the solidification process by adding magnesium or the like to the molten metal of the common gray cast iron, the shape of the graphite is spherical compared to gray cast iron. Since the nodular cast iron has a small notch effect, the stress concentration phenomenon is reduced and the strength and toughness are greatly improved.
The nodular cast iron of the present invention is heated to a temperature of 1,600 to 1,650 DEG C to be molten and then subjected to a desulfurization treatment. A spheroidization treatment agent containing 0.3 to 0.7 wt% Followed by heat treatment.
Here, when the nodular cast iron is heated to less than 1600 ° C, the entire structure is not sufficiently melted. If the cast iron is heated above 1650 ° C, unnecessary energy is wasted. Therefore, it is preferable to heat the nodular cast iron to 1600 to 1650 ° C.
When the amount of magnesium is less than 0.3% by weight, the effect of injecting the spheroidizing agent is negligible. When the amount of magnesium is less than 0.3% by weight, the effect of injecting spheroidizing agent is insignificant. When the amount of magnesium is less than 0.3% There is a problem in that an expensive material cost is increased. Therefore, the mixing ratio of magnesium in the spheroidizing agent is preferably about 0.3 to 0.7% by weight.
When the spheroidizing treatment agent is injected into the molten nodular cast iron, it is subjected to spheroidizing treatment at 1500-1550 ° C. If the spheroidizing treatment temperature is lower than 1500 ° C., the spheroidizing treatment is not properly performed. If the spheroidizing treatment temperature is higher than 1550 ° C., the spheroidizing treatment effect is not greatly improved, but unnecessary energy is wasted. Therefore, the spheroidization treatment temperature is preferably 1500 to 1550 ° C.
Since the
A coating layer may be formed around the
The coating layer is coated on the periphery of the
Chromium oxide (Cr 2 O 3 ) acts as a passivity layer to block oxygen entering the inside of the metal, thereby preventing rusting.
Titanium dioxide (TiO 2 ) is a white pigment because it is very stable physicochemically and has high hiding power. And is also widely used for ceramics having high refractive index because of high refractive index. And has characteristics of photocatalytic property and superhydrophilic property. Titanium dioxide (TiO 2 ) acts as an air purification function, an antibacterial function, a harmful substance decomposition function, a pollution prevention function, and a discoloration prevention function. Such titanium dioxide (TiO 2 ) ensures that the coating layer is surely covered around the
Here, chromium oxide (Cr 2 O 3) and when using hayeoseo mixing titanium dioxide (TiO 2), the mixing ratio of these, chrome oxide (Cr 2 O 3) Titanium dioxide (TiO 2) in 96-98% by
When the mixing ratio of chromium oxide (Cr 2 O 3 ) is less than 96 to 98% by weight, the coating of chromium oxide (Cr 2 O 3 ) often breaks in an environment of high temperature and the like, The rust preventive effect of the
When the mixing ratio of titanium dioxide (TiO 2 ) is less than 2 to 4 wt%, the effect of titanium dioxide (TiO 2 ) is insignificant so that the purpose of mixing it with chromium oxide (Cr 2 O 3 ) is discolored. That is, titanium dioxide (TiO 2 ) dissolves and removes foreign matter adhering to the periphery of the
Therefore, since the coating layer having excellent oxidation resistance is formed around the
The
The
On the other hand, RD (Polymerized trimethyl dihydroquinoline) is added to the
The present invention preferably includes 0.4 to 1.2% by weight of RD in the synthetic resin material surrounding the first-
Since RD is further added to the synthetic resin material forming the peripheries of the first-
In addition, a driving motor (not shown) for driving the first-
The temperature discoloring layer is coated on the surface of the outer case of the driving motor so that two or more temperature discoloring materials whose color changes when the temperature is higher than a predetermined temperature are coated on the surface of the outer case of the driving motor and separated into two or more sections according to the temperature change, And a protective film layer may be coated on the temperature coloring layer to prevent the temperature coloring layer from being damaged.
Here, the temperature-coloring layer may be formed by coating a temperature-coloring material having a color-changing temperature of not lower than 40 ° C and not lower than 60 ° C, respectively.
The temperature discoloring layer is for detecting a change in temperature of the paint due to a change in color depending on the temperature of the outer case of the drive motor. The temperature-coloring layer may be formed by coating a surface of the outer case of the driving motor with a color-changing material whose color changes when the temperature is equal to or higher than a predetermined temperature.
The temperature discoloring material is generally composed of a microcapsule structure having a size of 1 to 10 탆 and can exhibit a colored and transparent color due to the bonding and separation of the electron donor and the electron acceptor in the microcapsule.
In addition, the temperature-changing material has a rapid change in color and can have various discoloration temperatures such as 40 ° C, 60 ° C, 70 ° C, 80 ° C, 90 ° C, 100 ° C, 120 ° C, 150 ° C, 180 ° C, , This discoloration temperature can be easily adjusted in several ways. Such a temperature-coloring material may be various kinds of temperature-coloring materials based on principles such as molecular rearrangement of an organic compound and spatial rearrangement of an atomic group.
For this purpose, it is preferable that the temperature-coloring layer is formed so as to be separated into two or more sections according to the temperature change by coating two or more temperature-coloring materials having different color-changing temperatures. The temperature-coloring layer preferably uses a temperature-coloring material having a relatively low temperature of the discoloration temperature and a temperature-discoloring material having a relatively high discoloration temperature, more preferably a discoloration temperature of not lower than 40 ° C and not lower than 60 ° C A temperature-coloring layer can be formed using a temperature-coloring material.
Accordingly, it is possible to check the temperature change of the outer case of the driving motor step by step, thereby preventing overheating of the driving motor before it is damaged.
The passivation layer is coated on the temperature discoloration layer to prevent the temperature discoloration layer from being damaged due to external impact, and it is easy to check whether the discoloration of the temperature discoloration layer is visible, and at the same time, It is preferable to use a coating material.
The
The
The
The
The apparatus for manufacturing an anti-glare cover glass using the thermo plasticity of the present invention having such a constitution produces an anti-glare cover glass using thermo plasticity through the following manufacturing steps.
First, when the
And a first-order step S20 of polishing the edge after polishing the
The
In the printing step S30, the
After the printing step S30, the
The first
The inside of the
When the secondary
When the first cooled
And a secondary cleaning step S80 for cleaning the secondarily cooled
The anti-glare cover glass using the thermo plasticity of the present invention thus manufactured has the following characteristics.
Comparison of phenomena
As shown in Fig. 9 (a), the incidence phenomenon due to the fluorescent lamp was clear in the ordinary glass. When using (a) ordinary glass as a display for an outdoor advertisement, the advertisement effect is lowered due to the incidence phenomenon.
In addition, (b) the anti glare glass of the etching method has a problem that the reflected fluorescent light is clearly visible as it is in a circular shape, thereby increasing the fatigue of the eyes.
On the other hand, (c) the anti-glare glass of the present invention spreads the light and spreads the fluorescent lamp, thereby reducing the fatigue of the eyes.
Sparkle Comparison of phenomena
As shown in FIG. 10, (b) sparkle phenomenon occurred severely in the etching type anti-glare glass, whereas (c) the anti-glare glass of the present invention hardly produced sparkle.
Sharpness comparison
As shown in FIG. 11, (d) the anti-glare glass of the present invention is comparable to (a) an etching type anti-glare glass, (b) a coating anti glare glass, and (c) a film anti glare glass. It can be confirmed that the sharpness does not deteriorate.
The present invention has the following effects.
First, the present invention includes a
Therefore, the transparent
Therefore, since the surface strength of the anti-glare cover glass is increased by thermosetting, the scratching phenomenon and the surface peeling phenomenon do not easily occur.
Second, the
Therefore, since the transparent
Thirdly, in the present invention, the thickness of the
Therefore, the thickness of the
Fourthly, the
Therefore, radiant heat emitted from the
Therefore, since the entire interior of the
Fifth, a temperature discoloration layer whose color changes according to temperature can be applied to the outer case of the driving motor for driving the
Therefore, the temperature change of the outer case of the driving motor can be confirmed, and the overheating of the driving motor can be confirmed beforehand to prevent damage.
Sixth, the convection
Therefore, the air injected through the
Seventh, a coating layer formed by mixing 96 to 98 wt% of chromium oxide (Cr 2 O 3 ) and 2 to 4 wt% of titanium dioxide (TiO 2 ) may be coated on the periphery of the
This coating layer is excellent in corrosion resistance, scratch resistance, abrasion resistance, impact resistance and durability, thereby preventing the air diffusion portion from being oxidized and extending the life span of the present invention by preventing oxidation of the
Eighth, the
Since the nodular cast iron has a small notch effect, the stress concentration phenomenon is reduced, and the strength and toughness are greatly improved, thereby maximizing the service life of the
The primary cooling path 51 of the
The polypropylene resin composition comprises a polypropylene random block copolymer composed of 75 to 95% by weight of an ethylene-propylene-alphaolefin random copolymer and 5 to 25% by weight of an ethylene-propylene block copolymer having an ethylene content of 20 to 50% by weight .
The polypropylene random block copolymer is preferably 75 to 95% by weight of the ethylene-propylene-alphaolefin random copolymer and 5 to 25% by weight of the ethylene-propylene block copolymer. The ethylene- When the content of the ethylene-propylene block copolymer is less than 5% by weight, the impact resistance is deteriorated. When the content of the ethylene-propylene block copolymer is more than 25% by weight, the rigidity is deteriorated do.
Wherein the ethylene-propylene-alpha olefin random copolymer comprises 0.5 to 7% by weight of ethylene and 1 to 15% by weight of an alpha-olefin having 4 to 5 carbon atoms and improves mechanical stiffness and heat resistance of the polypropylene resin composition, As shown in Fig. The ethylene content is preferably from 0.5 to 5% by weight, more preferably from 1 to 3% by weight. When the content of ethylene is less than 0.5% by weight, the whitening resistance is deteriorated. When the content is more than 7% by weight, . Further, the alpha olefin means any alpha olefin except ethylene and propylene, and is preferably butene. When the number of carbon atoms is less than 4 or more than 5, the reactivity of the alpha-olefin with the comonomer is low during the production of the random copolymer, making it difficult to produce the copolymer. Further, it may contain 1 to 15% by weight, preferably 1 to 10% by weight, and more preferably 3 to 9% by weight of the above-mentioned alpha olefin. If the amount of the alpha-olefin is less than 1% by weight, the crystallinity becomes higher than necessary and the transparency is lowered. When the amount of the alpha-olefin is more than 15% by weight, the crystallinity and rigidity are lowered and the heat resistance is significantly lowered.
In addition, the ethylene-propylene block copolymer contains 20 to 50% by weight of ethylene and imparts impact resistance to the polypropylene resin composition and enables finely dispersing, thereby imparting both whitening resistance and transparency. The ethylene content may preferably be 20 to 40% by weight, and if it is less than 20% by weight, the impact resistance is deteriorated. If it exceeds 50% by weight, the impact resistance and whitening resistance may be deteriorated.
The present invention is characterized in that the primary cooling passage 51 of the
1: substrate 2: transparent inorganic binder
3: Coating layer 10:
20: Printing section 21: Screen plate
22: squeegee holder 23: squeegee
30: primary heating part 31: primary heating furnace
32: 1 Difference Song Conveyor 33: Primary Heater
40: secondary heating part 41: secondary heating furnace
42: 2 difference conveying conveyor 43: secondary heating heater
44: convection heat generating part 45: blowing duct
46: air diffusion part 47: air diffusion body
48: Spiral Air Groove 49: Spiral Guide Groove
50: primary cooling section 51: primary cooling furnace
60: secondary cooling section 61: secondary cooling furnace
70: Second-tier government
Claims (11)
A printing unit 20 installed on one side of the first reusing unit 10 and applying the cleaned substrate 1 and coating the transparent inorganic binder 2 on the upper surface of the loaded substrate 1;
A primary heating unit 30 which is installed at one side of the printing unit 20 and which heats the transparent inorganic binder 2 coated with the transparent inorganic binder 2 to be fused to the surface of the substrate 1, );
The substrate 1 provided on one side of the primary heating portion 30 and having passed through the primary heating portion 30 is charged and heated to a temperature higher than that of the primary heating portion 30 to heat the transparent inorganic binder 2 to the substrate 1, A secondary heating portion 40 for fixing to the surface;
A primary cooling part 50 installed at one side of the secondary heating part 40 and having the substrate 1 passed through the secondary heating part 40 inserted therein and rapidly cooling the introduced substrate 1;
A secondary cooling unit 60 installed at one side of the primary cooling unit 50 and having the substrate 1 passed through the primary cooling unit 50 inserted therein to slowly cool the substrate 1;
And a second cleaning unit (70) installed on one side of the secondary cooling unit (60) and cleaning the substrate (1) that has passed through the secondary cooling unit (60) Cover glass manufacturing equipment.
A screen plate 21 opposed to the upper portion of the substrate 1,
A squeegee holder 22 mounted on the screen plate 21 and conveyed in the screen plate 21,
A squeegee 23 that is coupled to the squeegee holder 22 and is transported along the squeegee holder 22 and prints the transparent inorganic binder 2 charged on the screen plate 21 on the surface of the substrate 1 to form the coating layer 3 The apparatus for manufacturing an anti-glare cover glass using thermo-plasticization according to claim 1,
Wherein the substrate is coated on the surface of the substrate with a thickness of 5 to 20 占 퐉.
Silica gel (SiO 2) anti-glare cover glass manufacturing apparatus using a heat baking, characterized in that that contains a.
A secondary heating furnace 41 installed at one side of the printing unit 20 and into which the substrate 1 on which the transparent inorganic binder 2 coating layer 3 is formed is charged,
A two-piece conveyor 42 installed in the secondary heating furnace 41 for feeding the loaded substrate 1 to the outlet side,
Which is provided in the secondary heating furnace 41 to heat the substrate 1 transported along the two-dimensional transfer conveyor 42 to fuse the coating layer 3 of the transparent inorganic binder 2 onto the surface of the substrate 1, A heating heater 43,
And a convection heat generating portion 44 provided in the secondary heating furnace 41 for forcibly circulating the air in the secondary heating furnace 41 to convert radiant heat in the secondary heating furnace 41 into convection heat Wherein the anti-glare cover glass is thermally fired.
The air blowing duct 45 is connected to the blowing duct 45 and a plurality of air diffusing portions 46 are provided in the blowing duct 45 to diffuse the air supplied to the blowing duct 45 into the inside of the secondary heating portion 40 Wherein the anti-glare cover glass is thermally fired.
A conical air diffusion body 47 connected to the air blowing duct 45 and through which the air supplied from the air blowing duct 45 flows,
A plurality of spiral air holes 48 formed around the air diffusion body 47,
And a spiral guide groove 49 formed around the air diffusion body 47 along the spiral air hole 48 and guiding the spraying direction of air ejected from the spiral air hole 48 in the spiral direction. An apparatus for manufacturing an anti - glare cover glass using thermo - plasticity.
A first-order step S20 of polishing the edge after polishing the substrate 1 when the substrate 1 is cut;
The squeegee 23 is conveyed along the screen plate 21 and the transparent inorganic binder 2 is screen printed on the upper surface of the substrate 1 to form a coating layer 3); < / RTI >
A first heating step (S40) in which the substrate (1) on which the coating layer (3) is formed with the transparent inorganic binder (2) is charged into the primary heating furnace (31)
A secondary heating step (S50) in which the primary heated substrate (1) is charged into the secondary heating furnace (41) and heated to 400 to 900 占 폚, so that the secondary heating is performed;
A primary cooling step (S60) in which the secondary heated substrate is first cooled to 250 to 350 DEG C when the substrate is put in the primary cooling furnace (51);
A secondary cooling step (S70) in which the primary cooling substrate (1) is cooled to 70 to 80 占 폚 when the primary cooling substrate (1) is charged into the secondary cooling furnace (61);
And a secondary cleaning step (S80) of cleaning the second cooled substrate (1). The method for manufacturing an anti-glare cover glass using thermo-plasticization according to claim 1,
Wherein the coating layer (3) of the transparent inorganic binder (2) is coated on the surface of the substrate (1) to a thickness of 5 to 20 占 퐉.
The inside of the secondary heating furnace 41 is forcibly circulated by the convection heat generating part 44 provided in the secondary heating furnace 41 so that the radiant heat inside the secondary heating furnace 41 is converted into the convection heat By weight of the glass composition.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140050268A KR101411469B1 (en) | 2014-04-25 | 2014-04-25 | Strengthening heat treatment anti glare cover glass manufacturing installations and the process of manufacture and the Strengthening heat treatment anti glare cover glass |
| PCT/KR2015/003491 WO2015163605A1 (en) | 2014-04-25 | 2015-04-07 | Apparatus and method for manufacturing anti-glare cover glass using thermoplasticity and anti-glare cover glass manufactured thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140050268A KR101411469B1 (en) | 2014-04-25 | 2014-04-25 | Strengthening heat treatment anti glare cover glass manufacturing installations and the process of manufacture and the Strengthening heat treatment anti glare cover glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101411469B1 true KR101411469B1 (en) | 2014-06-24 |
Family
ID=51134130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140050268A KR101411469B1 (en) | 2014-04-25 | 2014-04-25 | Strengthening heat treatment anti glare cover glass manufacturing installations and the process of manufacture and the Strengthening heat treatment anti glare cover glass |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101411469B1 (en) |
| WO (1) | WO2015163605A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101581272B1 (en) | 2015-06-18 | 2016-01-11 | 주식회사 알프테크 | Manufacturing Method of Anti Glare Glass |
| KR20180061505A (en) | 2016-11-29 | 2018-06-08 | 순천향대학교 산학협력단 | Roll Fabrication Method for Processing Anti Glare Glass and Anti Glare Glass Fabrication Method Using the Roll |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010049461A (en) * | 1999-06-15 | 2001-06-15 | 성필호 | Cover glass for flat display device and method for manufacturing the same |
| KR20110060233A (en) * | 2009-11-30 | 2011-06-08 | (주)미코씨엔씨 | Method of processing an anti glare glass |
| KR20130094570A (en) * | 2012-02-16 | 2013-08-26 | (주)엔케이이엔지 | Apparatus for manufacturing cover glass with a cylindrical surface |
| KR20130139299A (en) * | 2010-10-28 | 2013-12-20 | 코닝 인코포레이티드 | Video screen cover glass illumination |
-
2014
- 2014-04-25 KR KR1020140050268A patent/KR101411469B1/en not_active IP Right Cessation
-
2015
- 2015-04-07 WO PCT/KR2015/003491 patent/WO2015163605A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010049461A (en) * | 1999-06-15 | 2001-06-15 | 성필호 | Cover glass for flat display device and method for manufacturing the same |
| KR20110060233A (en) * | 2009-11-30 | 2011-06-08 | (주)미코씨엔씨 | Method of processing an anti glare glass |
| KR20130139299A (en) * | 2010-10-28 | 2013-12-20 | 코닝 인코포레이티드 | Video screen cover glass illumination |
| KR20130094570A (en) * | 2012-02-16 | 2013-08-26 | (주)엔케이이엔지 | Apparatus for manufacturing cover glass with a cylindrical surface |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101581272B1 (en) | 2015-06-18 | 2016-01-11 | 주식회사 알프테크 | Manufacturing Method of Anti Glare Glass |
| KR20180061505A (en) | 2016-11-29 | 2018-06-08 | 순천향대학교 산학협력단 | Roll Fabrication Method for Processing Anti Glare Glass and Anti Glare Glass Fabrication Method Using the Roll |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015163605A1 (en) | 2015-10-29 |
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