The quality of the glass has identified four strokes

Posted by Wangkiky Wangkiky over 6 months ago

At the same time, according to research data show that all kinds of cup pot, glass is the most health, safety glass, and become the most widely used one cup. The dazzling array of glass on the market, how many there will be shoddy glass, how to identify the quality of the glass it Here I will introduce several simple identification method?: 1) Material to clean: glass impure, there will be lines of glass drinkware, there are foam or sand.[url=http://cupinstock.com/drinking-cups/1067.html]Third Party Inspection Different Volumns Drinking Goblets[/url] "Pattern" refers to the vitreous surface streaks. Hand touch can feel coarse grain, fine lines can be seen against the light. "Bubble" refers to the vitreous internal air inclusions formed small voids, press causes can be divided into two kinds of material bubble and foam operations. Parison living intravitreal deeper place, from the outside looked like a small circle. Operating bubble relatively exposed, some, such as fish-eye projection, gently poke will Piercing; some like a small scar on the fruit is also very easy to peel off the layers.[url=http://cupinstock.com/drinking-cups/2027.html]Drinking Tableware Set Moroccan Tea Glasses Wholesales[/url] "Sand" means the body is not embedded in the glass melt white granular silica sand, it also refers to other particulate impurities. When embedded in the sand at the bottom of a relatively thick or while under the cover drawing chromatography, it is more difficult to find. Due to the different composition of sand and glass, different coefficients of expansion, so a slight impact on the vitreous disengaged, causing the glass to crack; sometimes though there is no collision, but because of temperature changes, and vitreous sand will disengage automatically cause the glass burst. 2) thickness to be consistent: drink with distributed various parts of the glass material to be proportioned. The selection of the drink with light observation, if the entire light perception consistent, seamless, then a uniform thickness; if the entire contrasty too large, then the thickness inconsistent. Such as cups shoulder too thin, usually not easy to find, but the light, you will find the place too bright too thin. Drinkware different uses of the desired thickness is different; tea should be thinner, and wine, cold drinks can with some thicker. General drinkware bottom should be thicker, but, too thick, slow heat, prone to cracking when exposed to heat; walls should be slightly thinner than the bottom, but it is too thin, the strength is too low, not strong. When selected, viewed from the outer side, the bottom should be horizontal, not a slope or bottom of the pot-shaped; the walls with a flick of your finger, it should be issued to hear. [url=http://cupinstock.com/drinking-cups/1687.html]Red Wine Glass Drinking Glass Crystal Glasses[/url]