Specification for Enameled Steel to be used in the LIGO Ultra-High Vacuum System

Document #:

LIGO-E1000083-v6

Document type:

E - Engineering documents

Abstract:

This process specification is for the application of enamel (porcelain) coating, primarily for use on sheet steel baffles for Advanced LIGO. It includes material requirements and the process and preparation for applying porcelain onto the baffle. These baffles are for use in an Ultra-High Vacuum (UHV) system. Porcelain is also applied to 304 stainless steel machined parts.

Files in Document:

• E1000083-v6 Spec for Enameled Steel.pdf (file is not accessible)

Other Files:

• E1000083-v6 Spec for Enameled Steel.doc (file is not accessible)

Topics:

• Fabrication
• Auxiliary Optics

Authors:

• Heidy Kelman
• Jeffrey Lewis

Keywords:

enamel porcelain coating

Notes and Changes:

2.2 Added requirement to fully round edges of sheet metal. Allowed the use of Scotch-Brite or similar to round the edges of sheet metal in porcelain applications.
2.4.2 Included electrostatic frit application and part number. Reduced upper thickness limit from .010 to .008".
2.4.4.1 Reduced upper thickness limit from .010 to .008".
3 Changed order of instructions.

Related Documents:

• LIGO-E1000221: Material Qualification RGA Test Results: Ferro Corporation RM108 Frit

Referenced by:

• LIGO-T1100165-v2: AOS SLC Manifold/Cryopump and Mode Cleaner Tube Baffles FDR