Solid rocket engine lining forming method

• Main Authors: HAN JIAO, ZENG QINGJIANG, YANG DAN, LI DEYONG, ZHANG YUENI, LU CHUNTAO, CONG LILI
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

The invention provides a solid rocket engine lining forming method which comprises the following steps: spraying a binder on a charge interface of a heat insulation layer for semi-curing treatment, and then carrying out lining forming construction. The method comprises the specific steps of S1, carrying out plasma treatment on the interface of the heat insulation layer of the solid rocket engine, protecting a non-spraying surface, then installing a spraying tool in the engine, and moving into a curing oven to be installed and limited; S2, diluting the binder by using ethanol, measuring the viscosity of the slurry by using a Tu-4 cup viscometer, and controlling the viscosity to be 40s/cup to 70s/cup; S3,sieving the slurry obtained in the S2, removing bubbles, spraying the slurry to the charge interface of the heat insulation layer through spraying equipment, and semi-curing the slurry for standby application; and S4, diluting a lining raw material with trichloromethane, preparing a lining slurry, spraying the