The water tank in a Class III medical device of a medical company that is about to go public has a size of 345x366x306mm. It is required to use food-grade ABS material with a thickness of 5mm. The thickness of the hollow edges on all four sides must be uniform, and the upper and lower tolerances must not exceed ±0.2mm. Since the water tank needs to be waterproof, uneven thickness will lead to water leakage, so the process requirements are extremely high. The customer also requires the use of studs, nuts and water pipe interfaces during bonding installation.
During the initial machine adjustment process, we found that the bottom thickness was normal, but the thickness became thinner as it went up, which could not meet the customer's requirements. After many debugging, the master adjusted the upper and lower molding processes, and the thickness of the final blister product was very uniform, which fully met the customer's high standards. The customer was very satisfied with this and said that several other suppliers also participated in the quotation, but they all thought that this thickness requirement was difficult to achieve. In the end, our process capabilities and product quality won the recognition of customers.
