Case Studies

Amber Glass Ring Protects Against UV Damage from Sun

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Amber Glass Ring Protects Against UV Damage from Sun

Engineering Team Develops A Superior Product

Problem

A company came to PEG with an amber glass ring that was designed to protect against damaging UV rays from the sun. Over the years the component had become chipped and scratched and needed to be replaced. When the company went to the original supplier for replacement, they were told that the amber glass used in the original part was no longer available. It was decided a coating material that would absorb the UV and protect the fluid in the tubing would be developed. The amber material had to withstand high-temperature processing and remain intact for multiple years of operation.

Solution

PEG’s engineers and glass specialists reviewed the problem and suggested that the amber color could be added to the surface and fired on the glass mimicking the UV resistance of the original amber glass. Although the solution solved the immediate problem, the team looked at the question of durability. It was determined that by laminating two glasses and adding the amber stain between the laminations before the shrinking would eliminate the possibility of the stain being scratched off. This resulted in the amber being within the wall of the final product making it impossible to be scratched off. The PEG team developed a solution better than the original product.

PEG Capabilities

  • Extensive Glass Knowledge
  • Engineering Experience
  • Shrinking (precision bore)
  • Decorating Capabilities

Unique large Bore Borosilicate Glass Sight Tube Used for Visual Inspection of Pipelines

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Unique large Bore Borosilicate Glass Sight Tube Used for Visual Inspection of Pipelines

A Precision Bore Tubing Application

Problem

When a company wanted a glass sight tube to be used for inspecting the contents of a pipeline in the field, they needed to find a fabricator that could meet specifications that presented some problems. To begin, the sight tube needed to have a large 9-3/4˝ bore. Because of the large diameter of the tube, a heavier wall thickness to withstand the internal pressure at which the pipelines operate was required. It was determined that the cross section of the wall needed to be greater than 1˝. Since there was no material that thick on the market, PEG had to come up with an innovative solution to solve the problem.

Solution

Since borosilicate glass was the material of choice because of its clarity and inert qualities, PEG started by setting up the tooling to shrink the borosilicate glass tubing to the 9-3/4˝ diameter. With that accomplished PEG set about solving the problem of providing a 1˝ cross section of wall for the sight tube. The glass specialists and engineers at PEG decided to use a laminating process to accomplish this. The laminating process consisted of fitting a smaller borosilicate glass tube inside a larger tube, fixturing them over tooling, and subjecting them to enough of a flame to fuse them together. Repeating the process several times resulted in several layers of borosilicate tubing being fused together until the desired thickness of 1˝ was achieved.

PEG Capabilities

  • Extensive Glass Knowledge
  • Engineering Experience
  • Shrinking (precision bore)
  • Decorating Capabilities