What kind of glass is used in supermarket freezers?
But many people will have doubts,
- what kind of glass is this?
- Why is there no fog?
- Is it easy to break?
- Can ordinary flat glass be used instead?
First of all, certainly, the glass of the refrigerator is not ordinary flat glass. The glass of the refrigerator is generally made of Low-E glass to make insulating glass, which greatly improves its heat insulation ability. At the same time, the hollow layer is filled with an inert gas such as argon, which can further hinder The cold air in the cabinet is transmitted to the glass outside the cabinet, causing the surface temperature of the glass outside the cabinet to drop. When it is lower than the dew point temperature of the air outside the cabinet, condensation will occur, hindering customers' sight.
At present, there are also some electric heating glasses made of electric heating wire or electric heating film. The electric heating film is different from the electric heating wire. In addition to the easier process, the glass surface is heated more uniformly, and it can cope with the normal fluctuation of the normal use voltage without overload. and so on. The main function of electric heating glass is to increase the temperature of the glass surface outside the cabinet so that it is not lower than the air dew point temperature so that condensation will not occur, and it is mostly used in the manufacture of freezers.
Finally, the glass doors of refrigerators are generally tempered for safety. Such glass has good impact resistance and can withstand large external forces without damage. Even if it is damaged, it will not form large fragments that will hurt people or things. His thermal stability performance is also very superior, can withstand temperature changes of 300 degrees Celsius.
Therefore, the glass door of the refrigerator is not fragile, does not fog, and cannot be replaced by ordinary flat glass, because the performance of ordinary flat glass cannot meet the requirements in terms of heat preservation, energy saving, impact resistance, and cold resistance.
LIJIANG Glass is a professional glass deep-processing equipment enterprise with a history of more than 10 years. The main equipment can produce TPS long-life insulating glass for building doors, windows, and curtain walls for passive houses, glass for commercial heating cabinets, refrigeration, and freezing display cabinets, and glass for locomotives and ships. , Special bullet-proof, smash-proof, explosion-proof, fire-proof glass, interior decoration glass, etc., have maintained close and long-term cooperative relations with many raw material suppliers and product buyers. The glass deep-processing equipment independently developed and produced by LIJIANG Glass has created a series of environmentally friendly and energy-saving insulating glass for glass processing and manufacturing practitioners. Among them, the refrigerated display cabinet door system is sold at home and abroad and is favored by consumers in many regions.
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All About the Insulating Glass Refrigertor Door
How to use automatic equipment to produce the insulating glass refrigerated display cabinet?
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Main Glass Machine Categories
Hot Sale Glass Machine
Automatic Glass Production Equipment
Intelligent Raw Glass Storage System
LIJIANG Glass
Basic Working Principle
LIJIANG Glass intelligent raw glass storage system is an intensive, diversified, and automated intelligent management system for the raw storage of glass deep processing plants.
Real-time exchange of inventory can be carried out with an ERP data connection, and the glass rack can be automatically retrieved according to the optimization result, and the glass rack can be sent to the loading station. It has independent inventory management and material replenishment functions. During the work, it will be scheduled according to the order situation and the actual working status on site, and the command will be issued to control the car to execute automatically.
Features & Advantages
1. Improve the optimization rate: the use of raw film storage equipment can make the glass in the original film library participate in the optimization at the same time, and the optimization rate of glass cutting can be increased by more than 3%;
2. The system is stable and the positioning is accurate: the walking of the glass base frame adopts the full-closed-loop control system of servo and laser ranging, Siemens control system, and high-efficiency and stable PN communication to ensure an accurate information, no need to return to zero after interrupting the operation, and the walking position accuracy can reach ±1mm;
3. Modular glass base frame: realize quick installation, reduce the impact of ground subsidence, ensure long-term stable operation, and facilitate equipment maintenance. The glass base frame in the storage area adopts a mechanical locking mechanism to prevent safety accidents caused by the movement of the glass base frame.
Real-time exchange of inventory can be carried out with an ERP data connection, and the glass rack can be automatically retrieved according to the optimization result, and the glass rack can be sent to the loading station. It has independent inventory management and material replenishment functions. During the work, it will be scheduled according to the order situation and the actual working status on site, and the command will be issued to control the car to execute automatically.
Features & Advantages
1. Improve the optimization rate: the use of raw film storage equipment can make the glass in the original film library participate in the optimization at the same time, and the optimization rate of glass cutting can be increased by more than 3%;
2. The system is stable and the positioning is accurate: the walking of the glass base frame adopts the full-closed-loop control system of servo and laser ranging, Siemens control system, and high-efficiency and stable PN communication to ensure an accurate information, no need to return to zero after interrupting the operation, and the walking position accuracy can reach ±1mm;
3. Modular glass base frame: realize quick installation, reduce the impact of ground subsidence, ensure long-term stable operation, and facilitate equipment maintenance. The glass base frame in the storage area adopts a mechanical locking mechanism to prevent safety accidents caused by the movement of the glass base frame.
Technical Parameter
| Item. | Spec. |
| Shuttle car travel speed | 40m/min |
| Traction speed | 20m/min |
| Working period | Average rack change time ≤45s/time |
| Single glass base frame load bearing | ≤12tons |
| Height of glass base frame layer | 450mm |
| Maximum Glass Size | 6100mm*3300mm |
| Size and specification of large glass shelf | 5280mm*3000mm*600mm |
| Size and specification of small glass shelf | 4480mm*3000mm*600mm |
Intelligent Glass Film Sorting and Storage System
LIJIANG Glass
Basic Working Principle
LIJIANG Glass intelligent glass film sorting and storage system includes horizontal and vertical turning tables, vertical measuring tables, glass shuttle machines, film sorting and storage machines, and vertical and horizontal turning tables arranged along the glass conveying direction. Through the coordination and cooperation of various components, a series of processes such as the horizontal and vertical conversion of glass, specification measurement, classified storage, and on-demand access are completed. The glass size in the process of processing is inspected by the vertical inspection table, and the glass is stored in the corresponding grid frame according to the system requirements. The system takes out the glass in sequence according to the process requirements for subsequent processing.
Features & Advantages
1. The manual handling and classification storage links are reduced in the whole system, which greatly improves the efficiency and yield;
2. Quick inspection, accurate positioning, intelligent classification storage, and intelligent outbound;
3. Optimize space utilization and reduce the space occupied by semi-finished products;
4. Wide applicability. It can be used for storage optimization and classification before edging to improve the efficiency of edging; it can also be used for storage and classification before tempering to meet the loading rate and process requirements of the tempering furnace. It can also be used before hollowing to solve the requirements for the automatic pairing of insulating glass sheets
Features & Advantages
1. The manual handling and classification storage links are reduced in the whole system, which greatly improves the efficiency and yield;
2. Quick inspection, accurate positioning, intelligent classification storage, and intelligent outbound;
3. Optimize space utilization and reduce the space occupied by semi-finished products;
4. Wide applicability. It can be used for storage optimization and classification before edging to improve the efficiency of edging; it can also be used for storage and classification before tempering to meet the loading rate and process requirements of the tempering furnace. It can also be used before hollowing to solve the requirements for the automatic pairing of insulating glass sheets
Technical Parameter
| Item. | Spec. |
| AGV trolley speed | 40m/min |
| Transfer speed | 20m/min |
| Matching beat | Average rack change time ≤45s/time |
| 80pcs processing glass thickness | ≤12 tons |
| Number of mobile grid lanes | 450mm |
| Moving speed of grid frame | 6100mm*3300mm |
| The height of table | 5280mm*3000mm*600mm |
| The number of glass slices in a single rack | 4480mm*3000mm*600mm |
| Installed total power | 10.5kw |
Intelligent Multi-layer & Ladder Horizontal Glass Film Sorting System
LIJIANG Glass
Basic Working Principle
LIJIANG Glass intelligent multi-layer & ladder horizontal film sorting system is used for glass storage and sorting before edging and tempering. When it is used before edging, the cut glass is sorted and stored according to the size of the edging direction. A single layer can store multiple pieces and supports the function of cross-through and straight-through, and the cut glass is scattered into a whole. When it is used before tempering, as a storage system for the glass to be tempered, it can greatly increase the loading rate of the tempering furnace with the filming table.
Features & Advantages
1. The lifting and lowering transmission of the aerial ladder is stable and reliable, ensuring lifting accuracy and eliminating the risk of the lifting frame falling
2. The unpacking bin adopts a modular design, with 10 layers as the standard module, which can be combined to increase the capacity of the unpacking bin.
3. Program intelligent control to determine the film output sequence
4. Intelligent layer-seeking, fast access, fast and accurate rising and falling movements
5. Software and hardware are independently researched and developed by AMO, which are highly integrated and perfectly integrated to achieve real-time upgrades
6. It can combine the current cutting or breaking of the layout to optimize the sorting before edging, to achieve optimized typesetting and output.
Features & Advantages
1. The lifting and lowering transmission of the aerial ladder is stable and reliable, ensuring lifting accuracy and eliminating the risk of the lifting frame falling
2. The unpacking bin adopts a modular design, with 10 layers as the standard module, which can be combined to increase the capacity of the unpacking bin.
3. Program intelligent control to determine the film output sequence
4. Intelligent layer-seeking, fast access, fast and accurate rising and falling movements
5. Software and hardware are independently researched and developed by AMO, which are highly integrated and perfectly integrated to achieve real-time upgrades
6. It can combine the current cutting or breaking of the layout to optimize the sorting before edging, to achieve optimized typesetting and output.
Frequently Asked Questions
How to processing the refrigerated display cabinet doors?
Automatic insulating glass processing equipment is required for producing the refrigerated display cabinet doors
1. The cutting double-headed saw: Aluminum alloy and hard plastic are generally used for glass door frames. First, cut to the desired length and 45-degree angle with a chop saw. Four profile couplets form a frame. Because the gap between the two 45-degree angles is required to be free from concavities, cracks, and burrs, the precision requirements for the cutting saw are relatively high.
2. The CNC drilling and milling machine: This machine is used for processing various holes and grooves of glass door frames.
3. Glass washing and drying machine: glass doors are generally composed of single-glass, double-layer insulating glass, and triple-layer insulating glass, but no matter what kind of glass door is made, the glass must be cleaned. Use Colet's glass washing machine to ensure that your glass is cleaned in place, free from stains and watermarks.
4. Insulating glass butyl rubber coating machine: To strengthen the thermal insulation of the glass door, the glass door should be made of insulating glass. This machine is used to apply sealing butyl glue to the aluminum strip spacer between the two layers of glass of the insulating glass door.
5. Insulating glass two-component sealant sealing machine: This machine is used for sealant sealing around the insulating glass door for the refrigerated display cabinet.
6. Insulating glass sealant coating rotary table: This machine is the auxiliary equipment of the two-component sealant sealng machine, which is convenient for workers to apply the sealing.
7. Insulating glass Inert gas inflator Equipment: This machine is used to fill inert gas such as argon for insulating glass doors for the refrigerated display cabinet.
8. Insulating glass aluminum spacer punching machine: This machine is used for punching the air-filling hole and exhaust hole before the insulating glass is filled with inert gas.
1. The cutting double-headed saw: Aluminum alloy and hard plastic are generally used for glass door frames. First, cut to the desired length and 45-degree angle with a chop saw. Four profile couplets form a frame. Because the gap between the two 45-degree angles is required to be free from concavities, cracks, and burrs, the precision requirements for the cutting saw are relatively high.
2. The CNC drilling and milling machine: This machine is used for processing various holes and grooves of glass door frames.
3. Glass washing and drying machine: glass doors are generally composed of single-glass, double-layer insulating glass, and triple-layer insulating glass, but no matter what kind of glass door is made, the glass must be cleaned. Use Colet's glass washing machine to ensure that your glass is cleaned in place, free from stains and watermarks.
4. Insulating glass butyl rubber coating machine: To strengthen the thermal insulation of the glass door, the glass door should be made of insulating glass. This machine is used to apply sealing butyl glue to the aluminum strip spacer between the two layers of glass of the insulating glass door.
5. Insulating glass two-component sealant sealing machine: This machine is used for sealant sealing around the insulating glass door for the refrigerated display cabinet.
6. Insulating glass sealant coating rotary table: This machine is the auxiliary equipment of the two-component sealant sealng machine, which is convenient for workers to apply the sealing.
7. Insulating glass Inert gas inflator Equipment: This machine is used to fill inert gas such as argon for insulating glass doors for the refrigerated display cabinet.
8. Insulating glass aluminum spacer punching machine: This machine is used for punching the air-filling hole and exhaust hole before the insulating glass is filled with inert gas.
What are the main types of insulating glass doors commonly used in refrigerators in the existing market?
To achieve its beautiful and transparent effect, traditional refrigeration display cabinets often use glass doors. There are mainly three types of insulating glass doors commonly used in refrigerators in the existing market, as follows:
1. The first method is a metal insulating strip-type glass door with double-layer ordinary glass. Due to the temperature difference between the inside and outside of the cabinet, this kind of insulating glass door will inevitably condense or frost on the glass door, causing the glass door to become blurred. The items in the cabinet cannot be seen clearly, affecting its transparency and aesthetics.
2. The second method is that the outer glass is coated with a metal conductive film. Metal spacers are used between the double-layer glass of the insulating glass. Silver paste lines are added on both sides of the glass coated with conductive film. The silver paste lines on both sides of the glass are connected to the power supply to heat the glass to solve the problem of condensation and frost. However, because the metal insulating strip has strong conductivity when using it, the conductive film on the glass at the metal insulating strip must be removed. Metal insulating strips lead to poor sealing of this type of insulating glass door. The inert gas cannot be retained for a long time in the insulated cavity, and the energy-saving effect of the glass door is poor, which eventually leads to the increased energy consumption of the product.
3. The third method is similar to the second method, except that the metal spacer is changed to a PVC spacer. Because the PVC material is an insulator, the conductive film does not need to be removed at the contact part with the conductive film. The silver paste belt can also be placed outside the spacer, and the insulated cavity can be filled with inert gas. However, the spacer in this process is a plug-in type. The four corners of the spacer are connected by plug-ins.
1. The first method is a metal insulating strip-type glass door with double-layer ordinary glass. Due to the temperature difference between the inside and outside of the cabinet, this kind of insulating glass door will inevitably condense or frost on the glass door, causing the glass door to become blurred. The items in the cabinet cannot be seen clearly, affecting its transparency and aesthetics.
2. The second method is that the outer glass is coated with a metal conductive film. Metal spacers are used between the double-layer glass of the insulating glass. Silver paste lines are added on both sides of the glass coated with conductive film. The silver paste lines on both sides of the glass are connected to the power supply to heat the glass to solve the problem of condensation and frost. However, because the metal insulating strip has strong conductivity when using it, the conductive film on the glass at the metal insulating strip must be removed. Metal insulating strips lead to poor sealing of this type of insulating glass door. The inert gas cannot be retained for a long time in the insulated cavity, and the energy-saving effect of the glass door is poor, which eventually leads to the increased energy consumption of the product.
3. The third method is similar to the second method, except that the metal spacer is changed to a PVC spacer. Because the PVC material is an insulator, the conductive film does not need to be removed at the contact part with the conductive film. The silver paste belt can also be placed outside the spacer, and the insulated cavity can be filled with inert gas. However, the spacer in this process is a plug-in type. The four corners of the spacer are connected by plug-ins.
What aspects should be paid attention to when customizing the glass door of the wine cabinet？
1. Material selection: Choose high-quality glass materials, such as tempered glass or laminated glass, and processed insulating glass. This ensures the durability and safety of the custom wine glass door.
2. Visibility and privacy: Consider the transparency of the glass door, and determine the degree of transparency of the glass according to personal preferences and usage needs. If you wish to display your wine collection, go for a clearer glass, or if you're more concerned about protecting your wine from light and temperature, go for a glass with thermal properties.
3. Dimensions and installation: Measure the size of the wine cabinet correctly to ensure that the customized glass door can be installed perfectly. Also consider the opening method of the door, such as sliding door, revolving door, or flip door, to ensure that it can be easily opened and closed in a limited space.
4. Safety considerations: choose glass with good explosion-proof, anti-ultraviolet, and sound insulation functions to ensure the safety and protection of red wine collection.
5. Cleaning and maintenance: Glass doors are easy to leave fingerprints and stains, so choose easy-to-clean glass, such as anti-fingerprint coating or easy-to-clean coating. Also, take care to clean and maintain your glass door regularly to ensure it looks tidy.
6. Lighting design: The lighting design in the wine cabinet can enhance the display effect of red wine. You can consider setting up appropriate lighting around the glass door to highlight the beauty of red wine.
In short, when customizing the glass door of the wine cabinet, you need to pay attention to material selection, visibility and privacy, size and installation, safety, cleaning and maintenance, and lighting design to meet your needs and improve the functionality and aesthetics of the wine cabinet.
2. Visibility and privacy: Consider the transparency of the glass door, and determine the degree of transparency of the glass according to personal preferences and usage needs. If you wish to display your wine collection, go for a clearer glass, or if you're more concerned about protecting your wine from light and temperature, go for a glass with thermal properties.
3. Dimensions and installation: Measure the size of the wine cabinet correctly to ensure that the customized glass door can be installed perfectly. Also consider the opening method of the door, such as sliding door, revolving door, or flip door, to ensure that it can be easily opened and closed in a limited space.
4. Safety considerations: choose glass with good explosion-proof, anti-ultraviolet, and sound insulation functions to ensure the safety and protection of red wine collection.
5. Cleaning and maintenance: Glass doors are easy to leave fingerprints and stains, so choose easy-to-clean glass, such as anti-fingerprint coating or easy-to-clean coating. Also, take care to clean and maintain your glass door regularly to ensure it looks tidy.
6. Lighting design: The lighting design in the wine cabinet can enhance the display effect of red wine. You can consider setting up appropriate lighting around the glass door to highlight the beauty of red wine.
In short, when customizing the glass door of the wine cabinet, you need to pay attention to material selection, visibility and privacy, size and installation, safety, cleaning and maintenance, and lighting design to meet your needs and improve the functionality and aesthetics of the wine cabinet.
How to set the parameters of a glass tempering furnace
When the glass tempering furnace is tempered, the parameter setting of the tempering furnace should pay attention to the following points:
1. For glass with holes and grooves, the heating time of the glass tempering furnace should be increased by 2.5% to 5% compared with a glass of the same specification.
2. For glass with sharp corners: the heating time of glass with an angle of less than 30° in the heating furnace is 2.5% to 5% shorter than that of ordinary glass. The part absorbs heat too quickly and causes bending.
3. For embossed glass: when the glass is placed, the uneven surface is generally facing up. To avoid ripples caused by excessive heating time, the uneven surface is sometimes placed downward. The heating time should be determined according to the thickest part of the glass, and the blowing pressure is also the same.
4. Glass tempering furnace for heat-absorbing glass: the heating time is generally reduced by 5% compared with ordinary glass.
5. For coated glass and heat-reflecting glass: to protect the film surface, the coated surface should face up, and the bottom temperature and heating time should be increased by 2.5% to 10% compared with an ordinary glass of the same thickness.
6. For glazed glass or enamelled-surface glass: it must be dry before entering the tempering furnace. The upper and lower temperatures are generally set at about 700°C. If the glass is bent, the wind pressure must be adjusted appropriately. The heating equilibrium pressure can be reduced by about 50%, and the heating time also has a certain relationship with the color of the glaze.
For the tempering of the glass tempering furnace, after understanding the above tempering parameter setting requirements, it is necessary to conduct a tempering test of a small amount of glass before mass production and adjust the relevant tempering data according to the actual situation to ensure the tempering quality of the produced glass.
1. For glass with holes and grooves, the heating time of the glass tempering furnace should be increased by 2.5% to 5% compared with a glass of the same specification.
2. For glass with sharp corners: the heating time of glass with an angle of less than 30° in the heating furnace is 2.5% to 5% shorter than that of ordinary glass. The part absorbs heat too quickly and causes bending.
3. For embossed glass: when the glass is placed, the uneven surface is generally facing up. To avoid ripples caused by excessive heating time, the uneven surface is sometimes placed downward. The heating time should be determined according to the thickest part of the glass, and the blowing pressure is also the same.
4. Glass tempering furnace for heat-absorbing glass: the heating time is generally reduced by 5% compared with ordinary glass.
5. For coated glass and heat-reflecting glass: to protect the film surface, the coated surface should face up, and the bottom temperature and heating time should be increased by 2.5% to 10% compared with an ordinary glass of the same thickness.
6. For glazed glass or enamelled-surface glass: it must be dry before entering the tempering furnace. The upper and lower temperatures are generally set at about 700°C. If the glass is bent, the wind pressure must be adjusted appropriately. The heating equilibrium pressure can be reduced by about 50%, and the heating time also has a certain relationship with the color of the glaze.
For the tempering of the glass tempering furnace, after understanding the above tempering parameter setting requirements, it is necessary to conduct a tempering test of a small amount of glass before mass production and adjust the relevant tempering data according to the actual situation to ensure the tempering quality of the produced glass.
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