什么是钢化清玻,英文名称及特点?

什么是钢化清玻,英文名称及特点?

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钢化清玻 = Tempered Glass
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Tempered glass is glass that has been processed by controlled thermal or chemical treatments. It has increased strength compared with normal glass and will usually shatter into small fragments, rather than sharp shards, when broken.

Tempered glass is strong, has enhanced thermal resistance, and breaks into small cuboid fragments rather than irregular shards of glass and therefore is less likely to cause injury.

Advantages

The term toughened glass is generally used to describe fully tempered glass but is sometimes used to describe heat strengthened glass as both types undergo a thermal 'toughening' process.

There are two main types of heat treated glass, heat strengthened and fully tempered. Heat strengthened glass is twice as strong as annealed glass whilst fully tempered glass is typically four to six times the strength of annealed glass and withstands heating in microwave ovens. The difference is the residual stress in the edge and glass surface. Fully tempered glass in the US is generally above 65 MPa while Heat Strengthened glass is between 40 and 55 MPa.

It is important to note that while the strength of the glass does not change the deflection, being stronger means that it can deflect more before breaking. Annealed glass deflects less than tempered glass under the same load, all else being equal.

Disadvantages

Toughened glass must be cut to size or pressed to shape before toughening and cannot be re-worked once toughened. Polishing the edges or drilling holes in the glass is carried out before the toughening process starts. Due to the balanced stresses in the glass, damage to the glass will eventually result in the glass shattering into thumbnail sized pieces. The glass is most susceptible to breakage due to damage to the edge of the glass where the tensile stress is the greatest, but shattering can also occur in the event of a hard impact in the middle of the glass pane or if the impact is concentrated (for example, striking the glass with a point). Using toughened glass can pose a security risk in some situations due to the tendency of the glass to shatter completely upon hard impact rather than leaving shards in the windowsill.

钢化清玻就是钢化过的透明玻璃

钢化玻璃又称强化玻璃，家庭装修中主要用于家具台面、隔断、屏风及工艺玻璃门。钢化玻璃有以下优点：
1．安全性好，破碎时先出现网状裂纹，破碎后成不具有锐利棱角的钝角状细小碎块，对人体不会造成重大伤害，较普通玻璃安全。
2．耐冲击强度高，与同等厚度的普通平板玻璃相比高4倍以上。
3．抗弯曲度大，比普通玻璃大3倍～4倍。
4．热稳定性好，能经受的温差约110°C。
钢化玻璃的缺点是：平整度略逊于其他玻璃，并且容易自爆。
钢化玻璃是一种特种玻璃，挑选钢化玻璃时除确定自己的应用规格、品种、使用功能外，还应注意其合格与否。钢化玻璃的国家质量技术标准中规定：每块碎片状态的钢化玻璃在50毫米×50毫米区域内的碎片数必须超过40个，允许有少量长条形碎片，其长度不超过75毫米，其端不是刀刃状，延伸至玻璃边缘的长条形碎片与边缘形成的角不大于45度。按规定，以上性能指标中如果有一项不达标，该产品即判断为不合格产品。鉴别钢化玻璃一般是通过钢化玻璃鉴别器进行，消费者购买时，可察看商家切割下的边角废料破碎后是否呈碎小的钝角颗粒，依此判断是否钢化玻璃。另外，还可以通过观察它的应力斑、平整度，询问均质处理等方法检验其质量。在某些特殊的自然光（或偏振光）条件下，观察钢化玻璃的反射光，能够看见玻璃表面存在明暗相间的条纹，这种亮度不一致的条纹称为应力斑。目前国际上最先进的技术也不能完全消除应力斑，但可以减轻。应选择应力斑较轻者。钢化玻璃的平整度略差于退火玻璃，应通过比较选择平整度好的。自爆是钢化玻璃的固有特性，不可避免。通过均质处理后可以进一步消除90%以上的自爆隐患玻璃，从而保证绝大部分不会自爆。要询问或看产品说明书是否经过均质处理