cord

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12:02 Apr 24, 2018
This question was closed without grading. Reason: No acceptable answer

English to Polish translations [PRO]
Tech/Engineering - Engineering: Industrial / Instrukcja robocza pomiaru naprężenia w pojemnikach szklanych
English term or phrase: cord
Czym może być "cord" w kontekście szklanych pojemników?

Work instructions for the consistent evaluation and measurement of residual stress due to cord in glass containers.

The stress associated with high stress cord can often be detected using a polariscope.

If the cord turns blue, the cord being examined is producing compression stress.
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Tomasz Grząślewicz
Poland
Local time: 20:20

Summary of reference entries provided
cord
geopiet

Discussion entries: 2





  

Reference comments


10 hrs
Reference: cord

Reference information:
Cord
Also known as ream, striae, or "cat scratch", cord is a streak of glass with a composition different from the bulk. These defects can compromise the performance and appearance of a container. We can perform quantitative measurements of cord stress, as well as identify the cord composition;

http://www.americanglassresearch.com/analytical/glass-qualit...

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Note added at 10 hrs (2018-04-24 22:31:37 GMT)
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Cord - A glass defect: part of the glass that differs in composition from the surrounding matrix. This different chemical composition produces a change in the refractive index so that the cord is visible as a streak.


Ream - Similar to cords, but reams occur in layers rather than threads (more common in flat glass where the layers are be drawn out).


Striae - An imperfection consisting of a multitude of fine surface fractures, cracks.


Cat scratch - surface irregularities on glass resembling the marks of a cat's claws.

http://www.gem-projects.be/gem glassdictionary.htm

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Note added at 10 hrs (2018-04-24 22:36:45 GMT)
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Figure 1: Shadowgraph picture of striae within N-LAK8 exhibiting a frozen convection pattern

Figure 2: Whirl shaped band-like striae from the tank melting process. Sophisticated casting control helps to prevent such striae

http://www.schott.com/d/advanced_optics/21cea63c-d62f-42b7-9... - page 2

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1.1.3. Wady optyczne szkła

Specyfika oraz niedoskonałość procesu technologicznego produkcji szkła są przyczynami powstawania wad optycznych o różnorodnej naturze. Wady te w różnym stopniu zakłócają nie tylko bieg fali świetlnej w szkle (na przykład przez zmianę kierunku propagacji, rozproszenie i tłumienie), ale również są przyczyną pogorszenia właściwości mechanicznych szkła. Można wyróżnić następujące wady optyczne (Ratajczyk, 1979: 6):

• Niejednorodności współczynnika załamania

• Nieciągłości współczynnika załamania i transmitancji

http://www.dbc.wroc.pl/Content/3557/Swirniak_Pomiar_PhD.pdf - page 34

geopiet
Native speaker of: Native in PolishPolish
PRO pts in category: 110
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