The tempering furnace involves many parameters in the processing of ordinary glass. These parameters will affect the quality of tempered glass if you are not careful. Today, I have sorted out the use of various parameters of the tempering furnace, and I will give you a brief understanding.

　　The small bending section is to choose the method of pressing to meet the demand for production. It is characterized by a wide range of habits and can be used to make R450 and various arcs of glass. However, some units adjust the upper pressing roller and the use of various parameters. Not skilled enough, now the adjustment method of the pressure stick on the small bend section and the use of various related parameters are specifically listed for users to refer to:

　　1. The adjustment method of the upper pressing roller: use the same thickness of glass that needs to be produced, cut two pieces of long strips, put them at both ends of the small bend, and flatten the advantage grid, check the air pressure of the upper pressing roller, and adjust it to 0.5 kg Then adjust the cone wheel of each pressing stick one by one until the pressing stick can be turned by hand, but it feels heavier. Every one feels like this. Don’t just adjust the length of the screw rod outside the cone wheel, and then adjust the length of the screw rod uniformly. This is a misunderstanding, because the screw rod is not a benchmark. . The operation of adjusting the pressure roller is a meticulous operation, and it is necessary to be careful.

　　2. Application of the pressure of the upper pressing roller: If the glass curvature R is below 1000, perhaps thicker glass can use pressure, the pressure is generally about 2 kilograms, and it does not need to be too large. If the pressure is too large, the optical surface of the tempered glass will be tempered by the tempering furnace. Performance will be affected. The key to eliminating straight edges does not just depend on the size of the pressure. If R is more than 1000 mm in the arc, no pressure is needed, just relying on the weight of the pressure roller.

　　3. Selection of locating device: The effect of the locating device is to prevent the long-term operation of the long and narrow glass from deviating and forming a warped angle. If the arc length of the glass is less than 600 mm, the third one can be used. If the arc length is more than 600 mm, it is better to use the first air knife as the locator, so that the glass can have a satisfactory reciprocating interval in the air grille. If the gap of the upper pressing roller is adjusted well, the longer the reciprocating interval, the better the curvature of the glass, and the straight edges will be reduced or eliminated accordingly. The effect of the positioner can be set at all times. The principle is that when the glass reaches the positioner after being out of the furnace, it can fall when it moves in the opposite direction. Just correct the glass.

　　4. Confirmation of Enter quench Distance: After using the positioner, the enter quench distance is a very important parameter, and it is necessary to adjust it to: the glass moves in the opposite direction immediately after reaching the positioner. Never allow the glass to move forward after touching the positioner. This will not only bend the positioner, but also make the straight edge of the glass protrude forward, up to 4-5 mm in serious cases. The gap of the pressure stick on the positioner should be adjusted accordingly to avoid bending the positioner forward when it rotates. The parameter closely related to the grid entry interval is the effective quench length (Effecting quenchlength), which determines the reciprocating interval of the glass in the grid. The length of the grid should be fully utilized. The glass is placed out of the wind grid, and the useful length of the wind grid needs to be adjusted to control the reciprocating direction of the glass.

　　5. Biow postponetime setting: It is a very important parameter for bending glass. It is closely related to the particle size of the glass, because the glass is not blown immediately after it is out of the oven, but it is necessary to shape the glass. After blowing, the temperature of the glass will drop rapidly at about 20-30 degrees per second. If the lagging blowing time is too long, the glass will be broken during the blowing, especially the glass of 3.2, 3.5 and 4 mm. , In order to achieve the outstanding radian requirements without affecting the particle requirements of the glass, the delay blowing time should be set as follows: when the glass reaches the positioner, it moves backward, and when it is in place, it is better to blow it when it moves forward.

　　In order to achieve the required granularity, the QuenchOscillating speed can be accelerated. If R is small, the arcing speed (ARC-Fotmingspeed) should be accelerated. We should understand that when the glass is in a soft state, the longer it reciprocates in the wind grating, the better the curvature. After blowing the air, the shape of the glass cannot be changed (if the rapid cooling reciprocating speed is accelerated, and the useful length of the same wind grille, the glass may swing out of the wind grille, which needs to be adjusted appropriately). Of course, if the thickness of the glass is more than 6 mm, the delayed blowing time can be appropriately lengthened. Because the thickness, shape, size, and other parameters of the glass produced by each unit are different, we cannot confirm how many seconds the specific time is here. All units are required to explore and form process parameters.

　　6. Setting of Quench upper roller ACTtime: This is a parameter that the press roller needs to set after applying pressure. If your product can only be made of one piece per furnace, the press roller will be pressed down. In principle, the time is not pressed after a few seconds of rapid cold wind blowing. If the product is a row that can hold multiple pieces, the pressing time should be set longer to avoid the formation of glass mutual due to high wind pressure. bump.

　　7. Setting of ARC-Forming speed: This parameter must be set before arc adjustment. The principle is that the smaller R is, the faster the speed, but generally do not exceed 400, the larger the R, the higher the speed. slow. If the arc-changing speed is set after adjusting the arc, it is possible that the arc of the glass will be inconsistent with the arc of the wind grating.

　　8. The relationship between temperature and arc: Some units reflect why the arc and straight edges of the glass are good when the arc is first adjusted, but after a period of time, the arc will become shallower and the straight edges will also appear. Actually, it has just started. The temperature in the furnace is relatively high when it is made, and the glass is burned relatively softly. After a period of time, the temperature in the furnace is relatively low, and the glass has changed. If the requirements for radian and straight edges are relatively high, it can be appropriately Increase the heating time, maybe reduce the radian a little.

　　9. Enter Interval (F) is a parameter that must be set when doing multiple stations. Its calculation method is: multiply the quenching time by n, subtract the sum of them with the heating time, and then subtract two ceramic rollers. The reversal time is about 20 seconds, divided by n is the time between entering the furnace, (for example: the heating time of 4 mm glass is 220 seconds, the quenching time is 30 seconds, multiplied by 3 (station) is equal to 90 seconds, 220-90 Equal to 110, minus 20 seconds, equal to 90 and divided by 3 equals 30 seconds, so it can be set to 25 seconds. It should be understood that the better the fit of each furnace of glass is, the better.

　　10. Several questions to pay attention to: If you find that the curvature of the glass is not very regular, you should pay attention to whether the gap between the pressing rods is too small or the pressure is too large, if you find the curvature of the front end of the tempering furnace glass (the end that comes out of the furnace) It is good, and the end of the furnace has a straight edge and is longer, you should pay attention to whether the reciprocating interval is too short, the lag time is too short, or the gap of the pressure roller is too large, if the front end (straight edge) of the glass is convex forward It should pay attention to whether the baking interval is too long or the effect of the locator is too long (often a few millimeters more will form a straight edge protrusion, especially for the narrow and long glass in the shower room). If the straight side is too long to be adjusted, you should understand to adjust the two pressure rollers. Some units only adjust the pressure roller adjacent to the positioner, but the effect is not obvious. You should pay attention to the moment when the glass is blowing back and forth in the wind grid. In which direction the glass is, this is the pressure roller that needs to be adjusted. If a positioner is used, and the glass has a warped angle, pay attention to whether the interval between the gates is too short, and the positioner is not effective. In addition, if the upper pressure roller does not need pressure, the orientation of the glass should be in the center of the wind grating when the wind grating is opened, so as to avoid slight scratches on the two straight sides of the glass. If it is not in the center, it is enough to shorten or lengthen the quenching time by 1-2 seconds.

　　11. If it is reflected that the thickness of the tempered glass of the tempering furnace is changed, it is very troublesome to adjust the gap of the pressing roller from the beginning. It is recommended that you can make some special gaskets, the diameter is 30 mm and the inner hole is 12 mm, and a slot is the same width as the inner hole. The thickness is 2 mm. When you finish 4 mm and make 5 mm, you can push the cone wheel inward and insert the washer into the screw rod. A 2 mm washer can increase the pressure roller by about 1 mm. Insert another piece if you make a 6mm one. This method can greatly improve efficiency.

　　The above is the detailed introduction of the various parameters of the tempering furnace compiled by the editor. If you want to know more about the operation of the tempering furnace, please continue to pay attention to us.