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History and Manufacturing of Glass Private

2 months ago Real estate Barddhamān   26 views

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Location: Barddhamān
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The word glass comes from the Teutonic term “Glaza”, which means amber. Although the origin of glass production line is still uncertain, the Mesopotamians from the 5th century BC discovered an ash by chance when they fire to melt clay vessel to use for glazing ceramics or when copper was smelted. In Egypt, greenish glass beads were excavated in some of the Pharaohs’’ burial chambers dating from the early 4th century BC, and this has been referred to as intentional glass manufacture. From the second century BC, the production of rings and small figures by using core-wound techniques began to appear. The oldest blueprint for glass was made on clay tablets in 669-627 BC, which read: “Take 60 parts sand, 180 parts ash from marine plants, and 5 parts chalk”. This blueprint is now held in the great library of the Assyrian king, Ashurbanipal, in Nineveh. [1] was drawn off with a blowing iron, performed into a round shape, and then blown into a balloon. Blown cylinder sheet glass and crown glass remained two of the most important production techniques for producing glass furnace until the early 20th century. From the 17th century, glass usage was not only limited to churches and monasteries but it also started to be used for glazing palaces. High demand motivated glass-makers to develop new methods, and in 1687 the process of casting glass was invented by the Frenchman Bernard Perrot, in which the glass melt was poured onto a smooth preheated copper table and pressed onto a pane with a water-cooled metal roller. In this way, a glass pane of up to 1.20 x 2 m could be produced. Although this method made it possible to produce glass at a cheaper price, the use of glass windows was still expensive.le in portions and passed through two cooled roller to form a glass ribbon. In this way, a glass pane with the dimensions of 3 x 6m could be produced. In the 1950s, the Englishman Alastair Pilkington developed the hot end glass equipment, wherein viscous glass melt was passed over a bath of molten tin floating on the surface. Tin was used because of the high temperature range of its liquid physical state (232 to 2270°C) and having a much higher density then glass.

Another process for the production of flat glass is the cast process. In this process, cold end glass equipment is poured continuously between metal rollers to produce glass with the required thickness. The rollers can be engraved to give the required surface design or texture and produce patterned glass. The glass can be given two smooth surfaces, one smooth and one textured, or two textured sides, depending on the design. In addition, a steel wired mesh can be sandwiched between two separate ribbons of glass to produce wired glass. Wired glass can keep most of glass pieces together after breakage, and it is therefore usually used as fire protection glass.

Toughened glass is a kind of safety glass, which has a higher strength due to its residual stresses. It cannot be worked on any further (such as cutting or drilling) after the toughening process has been done [7]. Toughened glass is becoming more and more important as its range of applications grow. The main application of thermally toughened glass production processing line, automotive glass and some domestic glasses like Pyrex, while the main uses of chemically strengthened glass are as laboratory and aeronautical glass.

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