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Tempering furnace manufacturers: Frequently asked questions about glass

Release time: 2019/12/13 14:36:04 source: admin

Today, Otto tempering furnace manufacturers come to share some answers to common questions about glass.

1. What is the scope of use of semi-tempered glass?

In some parts of the building, no personal safety is involved, but it is necessary to install tempered glass to improve the wind pressure resistance and explosion-proof ability, and it can not endanger personal safety.

2. Will filling the tempering furnace with SO2 accelerate the self-explosion of the glass?

will not. SO2 即使产生NiS 杂质也只会出现在玻璃表面,而玻璃自爆主要是由于NiS 杂质位于钢化玻璃中心层的引张应力区,所以钢化炉内充入SO2 会不会加快玻璃的自爆。 Because the charged SO2 will only appear on the glass surface even if NiS impurities are generated, and the self-explosion of glass is mainly because the NiS impurities are located in the tensile stress zone of the central layer of tempered glass. .

3. Where is chemical tempering mainly used?

Mainly used in electronic components and aircraft window glass.

4. How to reduce self-explosion?

装时注意避免玻璃的边部碰撞。 Adopt high-quality float original film, perform hot dipping treatment, edging treatment, control appropriate stress intensity, and pay attention to avoid edge collision of glass during installation .

5. Is the homogeneous treatment as long as possible?

产生新的硫化镍的相变过程,会增加成本。 It is not better as the time is longer, because the longer the homogenization treatment time will reduce the stress on the glass surface, and it will also generate a new phase transition process of nickel sulfide, which will increase the cost.

6. What is white mist? What should I do?

White fog phenomenon: Due to defects in the heating method of glass tempering in the past, the temperature of the tempering furnace is not set, the heating temperature of the glass in the furnace is not the same, and the heating is uneven, which makes the glass heat and warp while warping, warping time Too long, repeated friction between the glass and the track will produce white mist, which is a scratch.

Solution: Adding polishing powder with the polishing wheel of wool felt can throw away the white mist, lower the lower furnace temperature, lower the lower power, reduce the lower convection, and adjust the filming mode.

7. Can bent steel be coated?

Bent steel can not be coated, but it can be used for bending after coating.

8. How can insulating glass increase its energy-saving performance?

1)中空玻璃中充氩气 ( 1) Insulating glass filled with argon

2)用LOW-E 玻璃做中空玻璃 ( 2) Insulating glass with LOW-E glass

(3) Properly increase the thickness of the air layer of the insulating glass by 12mm

4)采用暖边系统 ( 4) Adopting a warm edge system

5)在夏季时间长的地方可将白玻换成色玻 ( 5) White glass can be replaced with colored glass in summer

9. What are the requirements for the thickness of the two substrates of insulating glass?

3mm。 The difference in thickness between the two substrates should not exceed 3mm.

10. What is the national self-explosion rate standard?

3%。 There is no national standard, but the industry standard is 3%.

11. How much UV can LOW-E glass reduce?

14%的紫外线。 Compared with heat-reflecting glass, it can reduce UV by 14%. 25% less UV than white glass.

12. Why are stress spots too heavy?

1)急冷过程中风压过大。 ( 1) The wind pressure is too high during the rapid cooling process. This high-pressure, high-speed airflow blows to the softened hot glass, which will increase the stress spots of the tempered glass. This situation can be avoided by adjusting the parameters of wind pressure;

2)玻璃刚从加热段进入到冷却段,并已经开始吹风急冷时,风栅的摆动或辊道的转动被停止后,导致风栅的风嘴只对着玻璃一个部位吹风。 ( 2) When the glass has just entered the cooling section from the heating section and has started to blow and quench, the swing of the wind grid or the rotation of the roller table is stopped, which causes the wind nozzle of the wind grid to blow only one part of the glass. When this happens, the wind grid swing or the rotation of the roller table should be synchronized with the blowing;

3)在冷却段内开始吹风急冷时,风栅的风嘴离玻璃的距离太近。 ( 3) The air nozzle of the air grille is too close to the glass when the air-blast quenching is started in the cooling section. When this happens, the height of the wind grille can be appropriately increased by adjusting the parameters without affecting the particle size and other quality requirements of the glass.

The above is a summary of some common problems of tempered glass made by tempering furnace manufacturers . I hope it will be helpful to everyone.



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