Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
The sprue sleeve of the die-casting mold is frequently worn due to high-temperature metal liquid erosion. Below is a guide and parameter table for the entire repair process. Step 1: Disassembly and Inspection. Remove the sprue sleeve, measure the wear with an inside micrometer, and use ultrasonic testing to check for internal cracks. If the crack exceeds 0.3mm, it needs to be slotted first. Step 2: Preprocessing. Use a laser cleaning machine to remove the oxide layer on the inner wall, with a cleaning speed of 0.3m/min, to ensure that the surface is free of oil stains and impurities. Step 3: Parameter Setting. Set parameters based on the material and wear amount of the sprue sleeve, referring to the table: H13 material, wear 0.1-0.2mm, selected spot 0.2mm, power 1000W, powder feeding speed 6g/min, melting speed 5mm/s; Wear 0.2-0.5mm, spot 0.3mm, power 1500W, powder feeding speed 8g/min, melting speed 3mm/s. Step 4: Cladding and post-processing. Fix the sprue sleeve with a rotating fixture, start automatic melting, and after completion, use a precision grinder to polish it to the original size with an inner diameter tolerance controlled within ± 0.02mm. After repairing according to this process in a certain die-casting factory, the sprue sleeve life was extended from 10000 pieces to 40000 pieces, the metal flow efficiency was improved by 15%, and the porosity of the product decreased by 60%.
