阅读说明：本技术 一种中空玻璃的生产工艺 (production process of hollow glass ) 是由 *** 于 2019-09-11 设计创作，主要内容包括：本发明公开了一种中空玻璃的生产工艺,具体步骤如下：清洗干燥：用水将待加工的玻璃进行清洗,然后放在高压风下进行吹干干燥,待用；组装铝框；打第二道密封胶：将上述步骤中组装好的铝框放置在第一步骤中清洗干燥后的一片玻璃上,然后使用双组份密封胶打胶机打第二道密封胶,打胶机应当装有A、B组份供胶压力指示表,出胶压力连续可调。本发明所述的一种中空玻璃的生产工艺,组装铝框时,铝条之间夹PVC膜能够增大铝条及连接件之间的连接强度,更好的保证中空玻璃两片玻璃之间的粘接强度；打第一道密封胶与打第二道密封胶时打的密封胶均为丁基胶,是铝条侧面和玻璃之间阻挡水汽的最有效屏障,双层打丁基胶能够更好的隔绝空气。(the invention discloses a production process of hollow glass, which comprises the following specific steps: cleaning and drying: cleaning glass to be processed by water, and then blowing and drying the glass under high-pressure air for later use; assembling an aluminum frame; and (3) applying a second sealant: and (3) placing the aluminum frame assembled in the steps on the piece of glass cleaned and dried in the first step, and then using a two-component sealant gluing machine to glue a second sealant, wherein the gluing machine is required to be provided with an A, B component glue supply pressure indicator, and the glue outlet pressure is continuously adjustable. According to the production process of the hollow glass, disclosed by the invention, when the aluminum frame is assembled, the PVC film is clamped between the aluminum strips, so that the connection strength between the aluminum strips and the connecting piece can be increased, and the bonding strength between two pieces of glass of the hollow glass can be better ensured; the sealant for sealing the first sealant and the second sealant is butyl rubber, which is the most effective barrier for blocking water vapor between the side surface of the aluminum strip and the glass, and the double-layer butyl rubber can better isolate air.)

1. A production process of hollow glass comprises the following specific steps:

(1) Cleaning and drying: cleaning glass to be processed by water, and then blowing and drying the glass under high-pressure air for later use;

(2) Assembling an aluminum frame;

(3) And (3) applying a second sealant: placing the aluminum frame assembled in the step (2) on a piece of glass cleaned and dried in the step (1), and then using a two-component sealant gluing machine to glue a second sealant, wherein the gluing machine is required to be provided with an A, B component glue supply pressure indicator, the glue outlet pressure is continuously adjustable, the glue is uniformly injected into a glass sealing area, and the inner side of the spacer strip frame is completely filled;

(4) laminating and pressing the aluminum frame: covering the other piece of glass on the first piece of glass punched with the second sealant in the step (3), uniformly pressing by a tablet press during laminating, adjusting the pressure and the speed of rolling, and ensuring the laminating quality of the laminated glass so that the two pieces of glass are connected together through the second sealant on the inner side;

And (3) applying a first sealant: gluing two pieces of glass laminated in the step (4) by using a butyl rubber coating machine, bonding the two pieces of glass together with an aluminum spacing strip through butyl rubber, uniformly widening the butyl rubber on the spacing strip to form a first sealant, and inflating the hollow glass by using an automatic inflating device, wherein the inflating quantity is not less than 85%;

and (3) curing: placing the hollow glass subjected to glue sealing in the step (5) on a stacking rack, wherein the inclination of the stacking rack is 45 degrees, but the bottom plane and the side surface of the stacking rack must be 90 +/-2 degrees, so that the bottom edges of two pieces of glass of the hollow glass are perpendicular to the bottom edge of the stacking rack, and naturally cooling and solidifying the hollow glass;

the method is characterized in that when the aluminum frame is assembled in the step (2), the bent aluminum strips are cut, the angle plug-in pieces and the connecting pieces are matched with inner holes of the aluminum strips, PVC films are clamped between the angle plug-in pieces and the connecting pieces and the aluminum strips, the aluminum frame is assembled by heating the aluminum frame in a high-pressure kettle at 120 ℃ and bonding the aluminum frame under the pressure of 1.2MPA, the molecular sieve is filled into the aluminum frame through filling holes in the aluminum frame, the filling rate of the molecular sieve is 90%, and meanwhile, the surface is completely treated; the PVC film is clamped between the aluminum strips, so that the connection strength between the aluminum strips and the connecting piece can be increased, and the bonding strength between two pieces of hollow glass can be better ensured;

the sealant punched in the steps (3) and (5) is butyl rubber, the butyl rubber is hot-melt rubber, has very low water vapor transmittance (the lowest water vapor transmittance is the lowest in hollow glass cement), has higher viscosity, is the most effective barrier for blocking water vapor between the side surface of the aluminum strip and the glass, and can better isolate air by double-layer punching of the butyl rubber.

2. The production process of hollow glass according to claim 1, wherein the glass is pretreated before cleaning and drying in step (1), the pretreatment comprises cutting, edging, drilling, washing, laminating and sheet matching, and the equipment used comprises a cutting machine, an edging machine, a drilling machine, a cleaning and drying machine, a sheet combining machine and a sheet pressing machine.

3. The production process of hollow glass according to claim 1, wherein in the step (2), the corner insert and the connecting piece are both designed with backstop teeth to prevent the aluminum strip from loosening.

4. the production process of hollow glass according to claim 1, wherein the aluminum frame filled with the molecular sieve in the step (2) is hollow within 45 minutes, the molecular sieve has uniform particle size and no powder, and the particle diameter is as follows: 0.5-0.8mm, the point contact crushing resistance is more than or equal to 20.0N/particle, and the activation performance of the molecular sieve is tested before use, namely, after 20g of the molecular sieve is added into 20ml of water, the water temperature difference is more than 30 ℃.

5. the production process of hollow glass according to claim 1, wherein the two-component sealant dispenser in step (3) is provided with an independent control valve to facilitate the cleaning of the sealant discharging gun, a butterfly test is performed before the sealant dispensing operation to check the mixing uniformity of the two-component sealant, the filling amount of the second sealant is observed at any time during the sealant dispensing process, the sealant is ensured to be fully contacted with the butyl rubber and be flush with the glass edge, no air passage or air bubbles are required in the middle, and the sealant depth is required to meet the requirement.

6. the process for producing hollow glass according to claim 1, wherein the butyl rubber coating machine in step (5) is capable of ensuring uniform rubber output, no rubber leakage, no continuous rubber output, and uniform coating on the aluminum strip, the width of the butyl rubber is not less than 3mm, the thickness during sheet closing is controlled within the range of 0.3-0.5mm, the corners of the aluminum frame must be sealed by butyl rubber, and the filling holes of the molecular sieve must be sealed by butyl rubber.

Technical Field

The invention relates to a production process of hollow glass, improves the field of the traditional production process of the hollow glass, and particularly relates to the production process of the hollow glass.

Background

the hollow glass is high-efficiency sound-insulation heat-insulation glass which is made by bonding two (or three) pieces of glass with an aluminum alloy frame containing a drying agent by using a high-strength high-air-tightness composite bonding agent, and various performances of the hollow glass are superior to those of common double-layer glass, so that the hollow glass is accepted by all countries in the world, the main materials of the hollow glass are glass, a warm edge spacing strip, a bent angle bolt, butyl rubber, polysulfide glue and a drying agent, along with the development of the glass deep processing industry and the continuous deep understanding of the performances of the hollow glass by people, the application of the hollow glass is continuously expanded, the quality requirement of the hollow glass by people is higher and higher, how to grasp the market mechanism, and providing high-quality and reliable hollow glass for customers becomes the common concern of hollow glass production enterprises;

The existing hollow glass production process has certain defects in the glass production process, firstly, the existing aluminum strip is used for connecting the angle plug-in component and the connecting piece when being assembled on an aluminum frame, the strength of the aluminum frame during assembly cannot be guaranteed, secondly, the filling rate of the existing aluminum frame inside filling drying agent is not fixed, the drying agent cannot be guaranteed to play an expected drying effect, and finally, the traditional glue applying process is mostly one sealing glue, the isolation effect on air cannot be well played, even two sealing glues are adopted, but the middle outer layer does not adopt butyl glue, the isolation effect cannot be guaranteed, therefore, the hollow glass production process is provided.

disclosure of Invention

The invention mainly aims to provide a production process of hollow glass, which can effectively solve the problems in the background technology.

in order to achieve the purpose, the invention adopts the technical scheme that:

a production process of hollow glass comprises the following specific steps:

(1) Cleaning and drying: cleaning glass to be processed by water, and then blowing and drying the glass under high-pressure air for later use;

(2) Assembling an aluminum frame;

(3) And (3) applying a second sealant: placing the aluminum frame assembled in the step (2) on a piece of glass cleaned and dried in the step (1), and then using a two-component sealant gluing machine to glue a second sealant, wherein the gluing machine is required to be provided with an A, B component glue supply pressure indicator, the glue outlet pressure is continuously adjustable, the glue is uniformly injected into a glass sealing area, and the inner side of the spacer strip frame is completely filled;

(4) Laminating and pressing the aluminum frame: covering the other piece of glass on the first piece of glass punched with the second sealant in the step (3), uniformly pressing by a tablet press during laminating, adjusting the pressure and the speed of rolling, and ensuring the laminating quality of the laminated glass so that the two pieces of glass are connected together through the second sealant on the inner side;

(5) And (3) applying a first sealant: gluing two pieces of glass laminated in the step (4) by using a butyl rubber coating machine, bonding the two pieces of glass together with an aluminum spacing strip through butyl rubber, uniformly widening the butyl rubber on the spacing strip to form a first sealant, and inflating the hollow glass by using an automatic inflating device, wherein the inflating quantity is not less than 85%;

(6) and (3) curing: placing the hollow glass subjected to glue sealing in the step (5) on a stacking rack, wherein the inclination of the stacking rack is 45 degrees, but the bottom plane and the side surface of the stacking rack must be 90 +/-2 degrees, so that the bottom edges of two pieces of glass of the hollow glass are perpendicular to the bottom edge of the stacking rack, and naturally cooling and solidifying the hollow glass;

When the aluminum frame is assembled in the step (2), cutting and bending the aluminum strips, matching the angle plug-in pieces and the connecting pieces with inner holes of the aluminum strips, clamping PVC films between the angle plug-in pieces and the connecting pieces and the aluminum strips, heating the aluminum frames in a high-pressure kettle at 120 ℃, bonding under the pressure of 1.2MPA, assembling the aluminum frame, filling the molecular sieves into the aluminum frame through filling holes in the aluminum frame, wherein the filling rate of the molecular sieves is 90%, and simultaneously, cleaning the surface; the PVC film is clamped between the aluminum strips, so that the connection strength between the aluminum strips and the connecting piece can be increased, and the bonding strength between two pieces of hollow glass can be better ensured;

The sealant punched in the steps (3) and (5) is butyl rubber, the butyl rubber is hot-melt rubber, has very low water vapor transmittance (the lowest water vapor transmittance is the lowest in hollow glass cement), has higher viscosity, is the most effective barrier for blocking water vapor between the side surface of the aluminum strip and the glass, and can better isolate air by double-layer punching of the butyl rubber.

preferably, the glass is required to be pretreated before being cleaned and dried in the step (1), the pretreatment comprises cutting, edging, drilling, washing, laminating and sheet matching, and the adopted equipment comprises a cutting machine, an edging machine, a drilling machine, a cleaning and drying machine, a sheet combining machine and a sheet pressing machine.

Preferably, the middle corner insert and the connecting piece in the step (2) are both provided with stopping teeth to prevent the aluminum strip from loosening.

Preferably, the aluminum frame filled with the molecular sieve in the step (2) should be hollow within 45 minutes, the molecular sieve should have uniform particle size and no powder, and the particle diameter is as follows: 0.5-0.8mm, the point contact crushing resistance is more than or equal to 20.0N/particle, and the activation performance of the molecular sieve is tested before use, namely, after 20g of the molecular sieve is added into 20ml of water, the water temperature difference is more than 30 ℃.

preferably, the two-component sealant dispenser in the step (3) is provided with an independent control valve to facilitate the cleaning of the sealant discharging gun and the cleaning of the sealant gun, a butterfly test is performed before the sealant dispensing operation to check the mixing uniformity of the two-component sealant, the filling amount of the second sealant is observed at any time in the sealant dispensing process, the sealant is ensured to be fully contacted with the butyl rubber and be flush with the glass edge, no air passage or air bubbles are required in the middle, and the depth of the sealant is required to meet the requirement.

Preferably, the butyl rubber coating machine in the step (5) should ensure that the rubber is uniformly discharged, does not leak and is not broken, and is uniformly coated on the aluminum strip, the width of the butyl rubber is not less than 3mm, the thickness of the aluminum strip is controlled within the range of 0.3-0.5mm during sheet combination, the corner of the aluminum frame must be sealed by the butyl rubber, and the filling hole of the molecular sieve must be sealed by the butyl rubber.

Compared with the prior art, the invention has the following beneficial effects:

1. When the aluminum frame is assembled, cutting and bending the aluminum strips, matching the angle plug-in pieces and the connecting pieces with inner holes of the aluminum strips, clamping PVC films between the angle plug-in pieces and the connecting pieces and the aluminum strips, heating the aluminum frames in a high-pressure kettle at 120 ℃, bonding under the pressure of 1.2MPA, assembling the aluminum frame, filling the molecular sieves into the aluminum frame through filling holes in the aluminum frame, wherein the filling rate of the molecular sieves is 90%, and simultaneously, treating the surfaces cleanly; the PVC film is clamped between the aluminum strips, so that the connection strength between the aluminum strips and the connecting piece can be increased, and the bonding strength between two pieces of hollow glass can be better ensured;

2. the sealant for sealing the first sealant and the second sealant is butyl rubber, the butyl rubber is hot-melt rubber, has very low water vapor transmittance (lowest in hollow glass cement), has high viscosity, is the most effective barrier for blocking water vapor between the side surface of the aluminum strip and the glass, and can better isolate air by double-layer butyl rubber.

Drawings

FIG. 1 is a schematic flow chart of a method of a production process of hollow glass according to the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.