3results about How to "Composite function" patented technology

This application relates to an integrated optical module that implements APR (Automatic Presence) function, comprising: two optical amplifier units connected by an optical fiber link; each optical amplifier unit includes: a first optical amplifier for transmitting signals and a second optical amplifier for receiving signals, and a control transmission module; the control transmission module is electrically connected to the first and second optical amplifiers, and is used to control the power of the first optical amplifier and monitor the operating status of the second optical amplifier; the control transmission module is connected to the optical fiber link via a WDM coupler; and an MCU control unit can control the OSC (Optical System Control) optical module to periodically transmit low-frequency signals or tuning signals to the optical fiber link, so that when one of the optical fiber paths is disconnected, the MCU control unit can control the optical amplifier unit at the other end to switch the OSC optical module from transmitting low-frequency signals to transmitting tuning signals and fiber LOS (Loss of State) signals, and control the first optical amplifier connected to itself to shut down, thus entering the APR process.

The invention belongs to the field of inorganic non-metallic materials, and particularly relates to a preparation method of an anti-ablation coating for a composite material blade of a hydrogen-burning gas turbine, the anti-ablation coating is coated on a gas runner surface of a ceramic matrix composite material blade, and the anti-ablation coating is composed of a packaging layer, a chemical barrier layer, a water-oxygen-resistant layer and a heat insulation layer from inside to outside in sequence, the anti-ablation coating is prepared by adopting a composite technology of slurry dipping, plasma spraying and vibration finishing treatment, and the protection requirement of the ceramic matrix composite blade in a 1600 DEG C hydrogen combustion environment can be met. The preparation method of the anti-ablation coating of the composite material blade of the hydrogen gas turbine has the advantages of convenience in construction, excellent aerodynamic characteristics, good hydrogen ablation resistance and CMAS corrosion resistance, long service life and the like.

This invention discloses a gear cutting machine tool with a measuring tool function, relating to the field of gear cutting technology. The invention includes a cutting table, a gantry frame mounted on top of the cutting table, a laser cutting assembly installed on the inner top of the gantry frame, a lifting cylinder mounted on top of the gantry frame, and a cutting module fixedly mounted at the bottom of the telescopic end of the lifting cylinder. A bottom mold is fixedly mounted at the bottom of the mounting shaft, and several adjustable molds are provided on the top of the bottom mold. Both the bottom mold and the adjustable molds have cooling chambers located at the gear teeth. This invention adopts an integrated mold shielding and cooling design, which can prevent accidental cutting, provide a measuring tool for the gear, and, based on the high heat flow density at the tooth tip and root, set cooling channels in corresponding areas to achieve precise thermal management. It integrates cutting guidance and active cooling into the same mold, resulting in a compact structure and multifunctional design.