Traditional Culture Encyclopedia - Traditional culture - How is glass formed?
How is glass formed?
Tempering is due to uniform temperature rise and rapid cooling to improve the strength of glass. Ordinary glass has almost no stress.
Tempering means that ordinary glass is heated at a constant speed of about 650 degrees Celsius and quenched with cold air, and the outer glass will cool down quickly. However, the internal temperature is still relatively high, which causes the external glass to expand with heat and contract with cold, and contract and squeeze into the glass. At this point, the wind pressure decreases. At the same time, it is cooled at a uniform speed to maintain the expansion force inside the glass (that is, the surface has shrunk, but the inside has not). This force is locked in the glass, when it is subjected to external force. First, conflict with this force. If this force is exceeded, the glass will burst. If this force is not exceeded, the glass will not rot. This is the stress of glass.
In the application of tempered glass, it is characterized by high strength, and it is packed with small particles after being safely broken (it is said that there are no sharp corners, but I really don't see small particles with round edges, which is probably a bluff. As prick the hand). When the force is large enough, it will break, which is also an application point. The others haven't been sorted out yet. Usually used in buildings and cars. Of course, it is also useful in mobile phones and watches. What screen? Those.
How to make a transparent glass bottle? Do you have a video?
Glass bottles are blown out by hand, but now they are all blown by machine, using determinant bottle-making machine.
This is a video of making glasses by hand.
v.youku/v_show/id_XNTY2NDM 1NDQ4
How to make ordinary glass into thermal transfer printing, what technology and video.
Ordinary glass can be heated. Technology is thermal transfer processing technology, which needs to be processed on glass. So you can heat it. This video is not for external use! Generally speaking, you just know.
Method for make double-layer insulating glass and how to obtain polysulfide glue on video.
Brief analysis of insulating glass process flow
1, glass cutting and blanking: the original glass is generally colorless float glass or other colored glass, sunshade glass, tempered glass and laminated glass with a thickness of 3 mm ~12 mm. The above glasses must meet the requirements of first-class and superior products in GBL 1614, and can be used only after passing the inspection. Glass cutting can be done by hand or by machine, but it must meet the size requirements. In this process, workers should always pay attention to the glass surface without scratches, the internal quality is uniform, and there are no obvious defects such as bubbles and slag inclusion.
2, glass cleaning and drying: glass cleaning must use the method of machine cleaning, because manual cleaning can not guarantee the cleaning quality. Before cleaning, the glass must be checked for scratches. In order to ensure the adhesion between sealant and glass, it is best to use deionized water. In addition, in order to ensure the recycling of water and save water resources, water can be filtered to ensure long-term use. After the glass is cleaned, it should pass the lamp inspection to check whether there are stains such as water drops and water stains on the glass surface. If there are water drops, water stains and other stains, it is necessary to adjust the running speed, heating temperature, air volume and brush gap of the machine until the effect is good. After the glass is cleaned, it should be assembled into insulating glass within 1 hour. In addition, make sure there is no friction and scratches between glasses. It is best to have a semi-finished glass storage car to separate the glass plates from each other.
3. Assembly of rubber strip insulating glass and aluminum strip insulating glass. Rubber strip-type insulating glass assembly;
(1) Environmental requirements: The processing temperature of rubber strip insulating glass is between 10 ~ 20 degrees in winter and 20 ~ 30 degrees in summer.
(2) Requirements of relative humidity: Since the adhesive tape type insulating glass desiccant is in powder form, it will play a slow role after being mixed with the adhesive evenly, so the relative humidity in the adhesive tape assembly area should be ensured to be slightly lower.
Assembly of aluminum strip insulating glass;
(1) Environmental requirements: the temperature should be between 10 ~ 30 degrees.
(2) Requirements for relative humidity: This kind of insulating glass has a slightly lower requirement for relative humidity, which is enough under normal circumstances. However, it should be noted that the desiccant should choose qualified products from regular manufacturers to ensure effective use. It is best to use up the desiccant within 24 hours after unsealing, because polysulfide glue has high air permeability and poor sealing performance, so double sealing is needed. Butyl rubber is used as the first seal for isolating gas; The use of polysulfide glue as secondary seal mainly plays the role of adhesion, followed by gas isolation. Practice has proved that the service life of single-channel sealed insulating glass is only about 5 years, while that of double-channel sealed insulating glass can be as long as 20 to 40 years. Therefore, it is the general trend to develop double-channel sealed insulating glass.
4. Glass sheets
Note that the edge of laminated glass should be aligned when the adhesive tape type insulating glass is pressed, and a small mouth should be left at the back when pressing, so that the dried gas can overflow from the small mouth.
Seal immediately after pressing. At this point, the processing of insulating glass with rubber strip is completed. For aluminum strip insulating glass, the distance between the outer edge of aluminum frame and the edge of glass after lamination should be 5 mm ~ 7 mm, which is used for coating the second layer of sealant. The polysulfide adhesive should be evenly coated on one side to prevent bubbles. After coating, the residue on the glass surface should be scraped off. At this point, the processing of aluminum strip insulating glass is completed.
5. Placement of insulating glass:
Whether the insulating glass is placed correctly will also have an impact on the final quality of insulating glass, whether it is in production, transportation or on-site storage, it should be piled up first.
The design requirements of shelves should consider the characteristics of insulating glass, and the stacking shelves should have a certain inclination. But the bottom plane and sides should always be 90 degrees, from
The bottom edges of two pieces of insulating glass can be placed vertically on the stacking rack. In addition, it should be noted that the bottom of the glass should not be stained with solvents such as oil stains and lime, because they will corrode the second sealant of insulating glass to varying degrees, thus affecting the sealing performance of insulating glass. With the continuous popularization and application of insulating glass, people have higher and higher requirements for insulating glass. It is necessary to continuously improve the processing technology of insulating glass, strive to improve the technical level and product quality, and promote the development of insulating glass in a higher, newer and stronger direction.
What's wrong with turning on the computer like watching a video through the glass?
Is it related to your improper operation before turning off the phone? For example: playing games, watching videos, operating big things, and using computers for a long time? Or download inappropriate things, the fault will not happen for no reason (if this problem is caused, just pay attention to your computer not being stuck, blue screen, and suddenly shut down, so the boot will not happen)?
Press F8 immediately after starting the machine until the advanced options appear. Select Last Known Good Configuration and press Enter to repair it. Now you can't press F8 to enter the safe mode to restore or reinstall the system (if the reinstallation is still the same, it is recommended to overhaul. If you can enter the safe mode, it means that you have installed inappropriate things, and all the inappropriate things downloaded before the accident will be uninstalled, or the system will be restored or reinstalled. If your computer is Win8, you can't enter safe mode without entering the system.
The current situation is caused by hardware. Take out the battery of the motherboard, discharge, plug in and out the memory, clean up the graphics card, and check whether there is any problem with the hard disk. If it doesn't work, fix it.
If you really can't install the system, you can't install it yourself, so go to the maintenance office and ask someone to help you. If the machine can't be turned on anyway, it is because of the sudden shutdown, which has caused damage to the disk. One is to take out the battery of the motherboard and discharge it. The other is to try it on for a while, otherwise it can't be repaired.
One is to put it away for half a day or one day, and sometimes it will recover itself. The other is to reinstall the system.
As long as you pay attention to your computer, it won't be like this when you turn it on.
Ask me any questions.
What is the effect of making glass fragments on the original video with AE? !
Either find a video of broken glass superimposed in AE, or use 3D software to make the broken glass effect and put it into AE for synthesis, or you don't have high requirements on the effect, just use the "crushing" effect built in AE.
How to block the video on the windshield?
I use professional technical knowledge to answer your question:
Windshields on cars are all processed industrially (high temperature tempering, hot bending). This kind of glass has the physical properties of temperature resistance and impact resistance, so it can't be cut and drilled. Its glass is characterized by:
If it is not bad for a long time, it will break into pieces. It is called safety glass.
How to remove the glass reflection image in the video?
It's not easy, and the effect will not be very good. Right-click the timeline, open the video filter, and select related items to try.
How to remove the glass from the plastic steel doors and windows covering the balcony?
First, you must remove the sealing strip on the edge of the window frame. If there are four windows, the one with a seam in the middle is the eldest son. Use a flat-head screwdriver to pry it slowly from the bottom. Generally, this kind of thing is difficult to take and is likely to be damaged. The most important thing is not to hurt the window sash, because it doesn't cost much to replace a sealing strip. After removing the strips on both sides of the sash, you can lift the sash upward until the top is lifted to the top of the upper slide rail. Then the bottom of the sash can be removed from the window, so that even if a sash is successfully removed, if the top cannot be removed, it may be that the window frame is deformed. You can try to take it from one side or the other of the window frame. If it is easy to take it here, take one and push the rest of the window frames to this position, because it may be that the height of a certain part is more than 1mm due to the deformation of the window frames during installation or use, so it will be difficult to take it off. After that, pick up the glass or use a flat screwdriver. It is recommended to use a wider carpenter, because the larger the stress area, the less likely the profile will be damaged. First pry it slowly from the gap, and then force it obliquely to the inside of the sash after a slight gap, so that it will be taken down slowly. Only the first one took it off, so the other three were easier to take. When taking the glass bead, it is best to take the long one first and then the wide one. Then cleaning the glass is very simple, needless to say! Come on, friend! ! ! In addition, if there are broken sealing strips or layering, take the broken ones to the merchant to buy some. Those things are not expensive. Note that the model can't be wrong, just bring the actual comparison of samples.
hope this helps
How to install wooden window glass (preferably with clear video)
The size of the glass is 5-6mm smaller than the window frame. The glass can be fixed with wooden strips, with photo frames and with glass buttons.
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