Injection Molding Knowledge Center

Why is the screw of the vertical injection molding machine damaged?

For vertical injection molding machines, screw damage is what causes how to dismantle the maintenance. Please see the detailed instructions. Screw damage and temperature also have a relationship, but very little; almost always, the screw itself is poor toughness or has been used for a long time, replace the screw. Temperature should be controlled in […]

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Good luck on starting work!

Good luck on the first day of work after the Chinese New Year. In the past year, MINHUI has faced various challenges and difficulties, but in the new year, we set new goals and strive for higher achievements. The new year is a fresh start and the beginning of new opportunities. With a new attitude

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How are wires injection molded?

MINHUI will share with you how wires are molded to obtain their necessary protective layer through injection molding technology. I. Purpose of Wire Injection Molding Before delving into the specific injection molding process, it is important to understand why we need to mold wires. In short, wire injection molding is done to provide a plastic

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MINHUI has after-sales in Vietnam

We are very excited to announce the opening of a branch of Minhui Vietnam, officially opening a new after-sales service point for injection moulding machines! Our Vietnam website: minhui.vn With a deep understanding of our customers’ growing needs and a long-term commitment to the local market, we have decided to bring our professionalism and passion

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What is the use of a bakelite vertical injection molding machine?

The pot handles in daily life are made of plastic injection molding using a single-slide Bakelite vertical injection molding machine. Its characteristics are explained below: 1. Single-slide Bakelite vertical injection molding thermosetting barrel, heated by an oil temperature machine, suitable for processing various thermosetting plastics (Bakelite). 2. This machine is equipped with a single-mold slide

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What are the program adjustments for vertical injection molding machines?

According to the temperature range provided by the raw material supplier’s information, set the barrel temperature to the middle of the range and adjust the mould temperature. Estimate the required shot volume and set the vertical injection molding machine to two-thirds of the estimated shot volume. Initially adjust the primary injection pressure to half the

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Barrel Not Reaching Temperature: What to Record before Service

When a barrel or nozzle zone does not reach its required temperature, first identify the affected zone and the actual symptom. Hydraulic-oil overheating is a different topic and cannot explain every heating-zone problem. Define the Heating Complaint Machine, injection unit, zone name and relevant configuration. Required setpoint, displayed actual value, elapsed time and temperature trend.

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How to maintain the electrical control system of vertical injection molding machine?

The electrical control system is like the brain of the vertical injection molding machine; the control system issues the instructions, and other systems receive the instructions to complete the corresponding action. Of course, we need to check and maintain such a core part regularly. How important is the electrical control system? It is the core

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