What equipment is needed for the second inspection of ceramic linings?

I. High-Temperature Safety Equipment 350℃ Resistant Thickened Heat-Insulating Gloves: Prevents burns from direct contact with high-temperature nozzles, meeting the protection requirements for operations at 320℃. High-Temperature Resistant Goggles: Protects the eyes from high-temperature splashes and UV light, suitable for thermal shock cycling and fluorescent penetration testing scenarios. High-Temperature Insulating Voltage Tester: Detects residual voltage after power failure in the hot runner heating circuit, avoiding the risk of electric shock during live operation. High-Temperature Resistant Heat Insulation Mat: Lays on the work surface to prevent burns and fire hazards caused by direct contact between the high-temperature nozzles and the work surface. II. High-Temperature Sealing Test Equipment Dry Compressed Air Source (Dew Point ≤ -40℃, Moisture Content ≤ 0.01%): Provides a moisture-free test medium, preventing misinterpretation of pressure holding data due to moisture expansion upon heating. High-precision digital pressure gauge (accuracy 0.001MPa, range 0~1MPa): Accurately monitors the pressure drop during the 0.5MPa pressure holding process, ensuring a detection accuracy of ≤0.01MPa pressure drop over 30 minutes. High-temperature resistant sealing tooling connector (compatible with hot runner nozzle interface): Leak-free at 320℃, ensuring sealing performance during pressure holding tests, and compatible with interface sizes of different nozzle specifications. Infrared thermal imager (temperature range -20~600℃, accuracy ±0.5℃): Real-time scanning of nozzle surface temperature distribution, quickly locating leakage cold spots and localized overheating areas at high temperatures. III. Thermal shock stability testing equipment High-definition industrial endoscope (high-temperature resistant lens model, probe diameter ≤3mm): After thermal cycling cooling, it extends into the flow channel to scan the inner wall of the ceramic lining throughout the entire process, checking for defects such as dark lines, chipping, cracking, and misalignment. Digital temperature control recorder (accuracy ±0.1℃, supports automatic recording of multi-channel data): Records temperature change curves in real time during three thermal shock cycles, accurately controlling the cooling rate and preventing lining breakage caused by sudden cooling. IV. Equipment for Verifying Accuracy under Operating Conditions Calibrated Husky K-type coupler probe + matching high-precision temperature controller: Simultaneously verifies the measured temperature of the lining area, confirming a deviation of ≤±0.3℃ from the displayed value, and identifies potential local overheating hazards. Dial gauge bracket + high-precision micrometer (accuracy 0.001mm): Re-measures key nozzle dimensions after thermal cycling, verifying no axial displacement or deformation of the lining, and a coaxiality deviation ≤0.02mm. Fluorescent penetrant + UV detection lamp: Detects minute gaps at the mating surfaces of the lining and substrate, confirming the absence of permeation paths for high-concentration fluorine decomposition products. V. Finishing and Resetting Tools Dust-free cloth + anhydrous ethanol (analytical grade): Cleans residual oil, impurities, and penetrant from the nozzle mating surfaces, preventing foreign objects from entering the mating gaps. High-temperature resistant fluorine passivation paste + special application brush: Evenly applies the passivation paste to the nozzle mating surfaces, blocking the corrosion path of fluorine decomposition products. Brand new perfluoroether rubber sealing ring (compatible with nozzle interface specifications):Resistant to 320℃ high temperature and HF corrosion, completely sealing the nozzle mating gaps. Torque wrench (range 0~20 N·m): Tightens the nozzle fixing screws diagonally, precisely controlling the torque to 8 N·m to avoid localized stress compressing the ceramic liner.