For those experiencing clogging or water leakage in the cooling system during injection molding.

～Maintain cooling performance and achieve stable molding quality with mold maintenance services

In injection molding, the mold's cooling system plays a crucial role in determining product quality and molding cycles. However, if cooling pipes become clogged or leak, the mold temperature may become unstable, potentially leading to dimensional defects, warpage, and prolonged molding cycles. To prevent such problems, regular inspections and proper maintenance through mold maintenance services are essential.

■ What are cooling system clogs and leaks? Causes and countermeasures

Cooling system clogs and leaks refer to conditions where the flow of cooling water is obstructed in the mold's internal cooling circuit, or cooling water leaks from pipes and connections. When cooling efficiency decreases, it becomes difficult to maintain a uniform mold temperature, which can lead to variations in molding quality and prolonged molding cycles. Since abnormalities are often difficult to detect in the early stages, early detection through regular inspections is crucial.

■ Main Causes

Cooling system clogs and leaks primarily occur due to the following factors:

• Scale and rust buildup: Scale and rust accumulate within the cooling circuit, impeding the flow of cooling water.
• Foreign matter contamination: Foreign matter enters the piping, partially blocking the cooling circuit.
• Pipe damage: Cooling water leaks due to deterioration over time or damage.

These problems often progress gradually, and in some cases, they can affect molding quality and productivity without being noticed.

■ Main Countermeasures

To maintain cooling performance, maintenance focused on preventive preservation is important.

• Pipe cleaning: Remove scale and rust from the cooling circuit to improve cooling water flow.
• Filter installation: Suppress the entry of foreign matter and prevent clogging of the cooling circuit.
• Water quality management and regular inspections: Continuously manage cooling water and inspect piping to detect abnormalities early.

Regular maintenance helps maintain cooling performance, leading to extended mold life and stabilized quality.

■ Key Points for Purchasers

When consulting about cooling system clogs and leaks, sharing the following information will facilitate cause analysis and improvement proposals:

• Details of defects occurring in molded products (e.g., warpage, dimensional variations)
• Mold usage period and maintenance history
• Cooling water management method and replacement frequency
• Location and status of water leaks
• Changes in cooling time and molding cycle

By checking the condition of the cooling circuit based on this information, a more appropriate maintenance plan can be formulated.

■ Features of SHINKO PRECISION VIETNAM's Mold Maintenance Services

SHINKO PRECISION VIETNAM specializes in precision injection molds under 100t, providing comprehensive services from cooling circuit condition checks to cleaning and inspection. We propose preventive maintenance to sustain cooling performance and carry out maintenance aimed at extending mold life. Furthermore, we offer mold design consulting that considers the overall maintainability and operability of the mold, supporting quality stabilization and improved production efficiency.

If left unaddressed, cooling system clogs and leaks can lead not only to quality defects but also to reduced production efficiency and shortened mold life. If you are concerned about decreased cooling performance, we will assess the mold's condition and propose the optimal maintenance method.