US3954432A - Method for improving the quality of flat ...

A method for forming flat glass of high optical quality on a bath of molten tin, in which the glass has a relatively short residence time, is disclosed. The method involves adding an oxidizing agent to the hotter regions of the molten tin bath which is believed to modify the bottom or tin-contacting surface of the glass while the glass is on the bath of molten tin so as to be able to produce ...

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Float Glass vs. Flat Glass vs. Plate Glass vs. Sheet Glass ...

Float Glass is glass that is manufactured on a float line where a molten ribbon of glass is made by "floating" the liquid glass mixture over a bed of molten tin. As it "floats" over the tin and on to a conveyor system of air or ceramic rollers, it slowly cools and forms a long ribbon of (now solid) glass that is cut and packed for shipping.

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（） - e-ging.com

shadowgraph glass container tinned steel lids lint-free cloth packing debris humidity cabinet heating plate loading ram tensile machine compression machine fixture block guide emery paper …

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The Float Process - Pilkington - First in Glass

At the heart of the world's glass industry is the float process - invented by Sir Alastair Pilkington in 1952 - which manufactures clear, tinted and coated glass for buildings, and clear and tinted glass for vehicles. The process, originally able to make only 6mm thick glass, now makes it as thin as 0.4 mm and as thick as 25 mm. Molten glass, at approximately 1000°C, is poured continuously ...

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Aluminum work - SlideShare

Place the float glass in a vertical position parallel to the screen between the light and the screen. Move the glass slowly towards the screen with a vertical oscillating motion. The shadowgraph read out is the distance at which the distortion just blends with the general shadow of the glass …

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TIE-25: Striae in optical glass

Figure 4: Striae testing using the shadowgraph method. Striae samples cut from standard strip glass have a defined optical path length of 50 mm in application direction. Block glass will be inspected at ~200 mm optical path length. The sample must be rotated by ±45° with respect to the incident beam until the striae are most prominent.

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What is a shadowgraph?

The shadowgraph is the immediate result of a constellation of light, three-dimensional object and photosensitive material. Hereby the object is in partial contact with, or in a relative proximity to, the photosensitive material. In other words, there is no optical system between object …

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100 lp/mm, 1" x 3", Float Glass, Ronchi Ruling | Edmund Optics

Regulatory Compliance. Available on Float Glass, Fused Silica, Fused Silica with Fluorescent Backing, and Opal. Precision Ronchi Ruling Glass slides are excellent for evaluating resolution, field distortion, and parfocal stability, especially of microscopes. Many …

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EP0342127A2 - Method for determining the optical …

The optical quality of float glass is determined by shadowgraph at a suitable location in the line for manufacturing the sheet of float glass. The image is recorded by a video camera and evaluated with the aid of digital image processing so as to determine the brightness profiles. The refraction profile is calculated from the brightness profile and is represented and evaluated numerically and ...

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Floater clustering in a standing wave | Nature

b, c, Plan views of a standing wave with a shadowgraph (b), and showing hydrophilic particles clustering at its nodes (c). Scale bars, 5 mm. Scale bars, 5 mm. Full size image

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Glossary - Viridian - We Love Glass

Bronze Glass See tinted glass. Bubbles In float glass and obscure glass, a gaseous inclusion. In laminated glass, a gas pocket in the interlayer material or between the glass and the interlayer. Also called a blister or seed. Bulb Edge In float glass manufacture, the extreme lateral edge of the ribbon as floated down the line. Bull Nose

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Retroreflective shadowgraph technique for large-scale flow ...

Float glass with a dimension of 600 × 600 × 6 mm 3 exposed to a 0.16 MW gas fire was tested. The WMC was generated by a single orifice nozzle with K-factor of 1.01 L/min/ MPa 1/2.

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Retroreflective shadowgraph technique for large-scale …

Float glass with a dimension of 600 × 600 × 6 mm 3 exposed to a 0.16 MW gas fire was tested. The WMC was generated by a single orifice nozzle with K-factor of 1.01 L/min/ MPa 1/2.

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Polymer Preform Polariscope Specially For Plastic Pet ...

Handheld Polariscope Observing stress in Quartz, float glass. General use Strain Viewer detecting strain in float glass, laminated glass ... yaoke shadowgraph digital vertical optical profile projector. optical trial lens set 266 other optics instruments metal trial …

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Fracture mode of glass plate subject to low-velocity ...

We investigated the fracture mode of a float glass plate that fractured under a low-velocity impact and conducted a numerical simulation. First, an impact fracture experiment of a float glass plate was carried out using a dropping weight, and crack development in the thickness direction of the glass plate was observed by a shadowgraph method.

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THE CHOPPER

There was glass in the windows to prevent you from chopping your nose off and insulate the sound of the device. ... one of the highlights was the 3D shadowgraph. Hammond filed for a patent on this concept on 23JAN1923. ... the silhouette was stereoscopic and would appear to float …

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Float glass: clear glass sheet manufacturer & supplier ...

Float glass has been at the core of everything we do since 1970, and it remains so today. It's incredible how this material has become such a key feature of architectural design. Advancements such as solar control and thermal insulation mean that float glass is essential to how we design, build and live today.

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Making a 2" Plano-Convex Lens - ATM, Optics and DIY Forum ...

This testing is mainly applicable to making lenses from glass of questionable quality, such as plate or float glass. If you buy a precision-annealed blank of BK7 or whatever from Newport Glass, GlassFab at Rochester, etc., you can skip the strain and straie testing and go straight to grinding.

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IS 2835 (1987): Flat transparent sheet glass

DD-G-45 I c-1968 Federal specification for glass, plate, sheet, figures ( float, flat, for glazing, corrugated, mirrors and other uses ). Federal Supply Service, USA. JIS R 3202-1981 Float and polished Flate Glasses, Japanese ... shadowgraph, the intensities of these defects are defined as having

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An improved, free surface, topographic technique

Fig. 2. Photo (a) and shadowgraph (b) of a wavy glass panel used to validate surface heights measured using the surface topographic technique. Surface plot (c) of height elevation data of same portion of wavy glass. Notice contour lines and surface elevation heights listed on H-axis (scaled by 100 to show detail).

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industrial glass - History of glassmaking | Britannica

industrial glass - industrial glass - History of glassmaking: Glass as an independent object (mostly as beads) dates back to about 2500 bc. It originated perhaps in Mesopotamia and was brought later to Egypt. Vessels of glass appeared about 1450 bc, during the reign of Thutmose III, a pharaoh of the 18th dynasty of Egypt. A glass bottle bearing Thutmose's hieroglyph is in the British Museum ...

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Egyptian Float Glass Manufacturers | Suppliers of Egyptian ...

Egyptian manufacturers and suppliers of float glass from around the world. Panjiva uses over 30 international data sources to help you find qualified vendors of Egyptian float glass。

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General Semites J+dministration~ for the of 1. 1

GLASS, FLOAT OR PMT'E, S~~EET8FIGU~D (FLAT,FOR GLAZING, PIIRRORSAND OTHER USES) This specification was approved by the Commissioner~ Federal Supply Semite, General Semites J+dministration~ for the use of all Federal agencies. 1. ... When evaluated wing the shadowgraph…

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Spandrel Glass

Ultra-low volatile organic compounds (VOC's) Fallout resistance on fully tempered glass if applied at 13 mils. Can be applied on any glass type, annealed, or heat-treated. Does not weaken tempered or heat-strengthened glass. Can be used monolithically, or as part of an IGU. Spandrel glass is designed for non-vision areas.

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Method of improving quality of flat glass formed on molten ...

FIG. 1 is a photograph of projected image (shadowgraph) resulting from projecting a point-light source through a 1/8 inch thick glass sample free of bottom surface bloom and having top surface batter; ... Flat glass float formed in accordance with the invention has zebra board angles about 58° to 65° for glass having a thickness of 0.090 to 0 ...

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wissem essayed - Gérant - TUNISIAN FLOAT GLASS | LinkedIn

عرض ملف wissem essayed الشخصي على LinkedIn، أكبر شبكة للمحترفين في العالم. wissem لديه وظيفة واحدة مدرجة على ملفهم الشخصي. عرض الملف الشخصي الكامل على LinkedIn واستكشف زملاء wissem والوظائف في الشركات المشابهة

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AIG American Glass Company

Float Glass - Glass formed on a bath of molten tin. The surface in contact with the tin is known as the tin surface or tin side. ... Shadowgraph - A device for inspecting glass with respect to distortion and other defects. Shelf Life - Used in the glazing and sealant business to refer to the length of time a product may be stored before ...

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Float Glass Archives - Montonissa Finland - Lasitukku

4mm Float Glass 2550x1605mm. 809.60 €. Box. Includes 45 float glasses (184 m2). Weight is approximately 1900 kg. -. Add to cart. 4mm Float Glass 2550x1605mm quantity. Quick View.

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Comparison of interferometry, schlieren and shadowgraph ...

The crystal growth chamber is made of glass that is placed in a tank made of Plexiglas. ... The interferometer floats on pneumatic legs to isolate the optics from external vibrations. ... The shadowgraph images have been recorded using the same optics as employed in the interferometry setup by first blocking the reference beam and allowing the ...

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Experimental Observations on Dynamic Response of Selected ...

Figure 6(a) illustrates typical damage patterns observed using the shadowgraph technique with soda-lime (float) glass at ~200 m/s impact velocity, while Fig. 6(b) illustrates the typical damage pattern in Starphire™ (PPG Industires), a high-purity soda-lime glass…

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