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Thermal Protection: The Process of Gas Injection Molding
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English
Abstract
Gas Injection Molding (GIM) is a process by which External Tank (ET) components receive Super Light Ablator (SLA) through pressurized injection of ablator into a vented mold assembly. Component surfaces are cleaned and coated with a silicone primer. Each part is transferred to the adhesive work station where a pre-mixed batch of adhesive is obtained and applied to the primer substrate in a smooth continuous coating. After injection is complete, the mold is processed through a heat cycle, the panel representative of the component is scrutinized for acceptable density and tensile strength values. The component is inspected for dimensional tolerances and visual inspection is performed.
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Citation
Moffett, J., "Thermal Protection: The Process of Gas Injection Molding," SAE Technical Paper 861753, 1986, https://doi.org/10.4271/861753.Also In
References
- Seeler Karl A. Characterization of Gas Injection Molding M.I.T. Polymer Processing Program for Martin Marietta Aerospace Michoud Division June 1983
- Adams S. K. Conrad Thomas Gas Injection Molding a Novel Process for Applying Ablative Coatings Martin Marietta Corporation, Advanced Manufacturing Technology 1983
- Ripple M. J. Process Description for Component Ablator Facility Martin Marietta Aerospace Michoud Division 1982