Shaping method of sealing gasket between windows and covering cap of cone-cylinder-shaped thermal shield

• Main Authors: HAN QINGBO, YANG JIANGBO, CHU JINGSHENG, FU DESHENG, YAN SHULIANG
• Format: Patent
• Language: English
• Published: 02.09.2015
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PISTONS; SEALINGS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a shaping method of a sealing gasket between windows and a covering cap of a cone-cylinder-shaped thermal shield. The shaping method of the sealing gasket between the windows and the covering cap of the cone-cylinder-shaped thermal shield includes following steps: using a numerical control machining method to process three windows on the thermal shield shaped through mould pressing, and using a near-net-shape forming method to shape the covering cap with a complex molding surface through mould pressing; performing repair so as to obtain matched intervals between the covering cap and the thermal shield windows so as to leave a space for manufacture of the sealing gasket; smearing the windows with prepared sealant, swearing the covering cap with a releasing agent, guaranteeing separation between the covering cap and the sealant, adhering the sealant to the thermal shield windows, and using a special shaping clamp matched with the thermal shield to tightly press the covering cap. The shaping method of the sealing gasket between the windows and the covering cap of the cone-cylinder-shaped thermal shield can guarantee seal performance of the thermal shield windows of a shield throwing system, and simultaneously can meet a downstream/upstream step increment between an external cone of the covering cap and an external cone of the thermal shield.