I. Material Preparation and Inspection
Material Quality: Ensure that materials such as filter paper, filter element covers, mesh plates, etc., meet production requirements, with good air permeability, filtration accuracy, sufficient strength, and stability.
Material Pretreatment: Perform pretreatment (e.g., degreasing, dust removal) to ensure cleanliness and molding effectiveness during thermal compression.
Material Inspection: Thoroughly inspect materials before thermal compression to confirm no damage, impurities, and compliance with design specifications.
II. Mold Preparation and Inspection
Mold Design: Molds must be precisely designed to ensure correct shape and dimensions of the formed filter. Use high-temperature and corrosion-resistant materials for molds.
Mold Cleaning: Clean molds thoroughly before each use to remove oil, dust, and other contaminants, preventing filter pollution.
Mold Inspection: Check molds for integrity, ensuring no cracks, deformations, or defects to guarantee stability and safety during thermal compression.
III. Thermal Compression Process Control
Heating Temperature & Time: Strictly control heating temperature and duration to avoid overheating or scorching. Temperature settings depend on material thermoplasticity and mold dimensions.
Pressure & Time: Maintain appropriate pressure and duration during compression to ensure full molding of materials (e.g., filter paper). Adjust parameters based on materials and molds.
Process Monitoring: Monitor heating and pressure parameters in real time to ensure stability and accuracy. Immediately halt and address any abnormalities.
IV. Post-Processing and Inspection
Cooling & Demolding: Allow molds to cool naturally to room temperature after compression, then carefully remove the formed filter. Avoid excessive force or vibration during cooling to prevent deformation or damage.
Cleaning & Drying: Clean and dry the formed filter to remove surface contaminants. Strictly control temperature and duration during cleaning/drying to avoid damage.
Quality Inspection: Conduct inspections including visual checks, dimensional measurements, and air permeability tests to ensure compliance with design standards.
V. Safety and Environmental Protection
Production Safety: Strictly follow safety protocols during thermal compression. Wear protective gear to prevent burns, electric shocks, and other hazards.
Environmental Requirements: Prioritize energy conservation, emission reduction, and waste minimization. Classify and recycle waste to reduce environmental impact.