Several Steps Of Injection Mould Repair

1.Preparation

(1)Evaluate mould status:

• Perform a comprehensive inspection of the mould to assess the degree and type of wear and damage (such as scratches, cracks, corrosion, etc.).
• Determine the necessity and feasibility of repair.

(2)Develop a remediation plan:

• Based on the assessment results, develop a detailed restoration plan, including required materials, tools and restoration methods.

2.Disassemble the mould

(1)Safe Disassembly:

• Before disassembling the mould, make sure the injection moulding machine is in a safe state and disconnect the power supply.
• Record the assembly sequence of the mould to facilitate subsequent reassembly.

(2)Cleaning mould:

• After disassembly, clean the mould thoroughly to remove oil, plastic residues and impurities for subsequent inspection and repair.

3.Repair process

(1)Surface repair:

• Polishing: For minor scratches and scuffs, use a polishing tool for surface preparation.
• Spraying or electroplating: For surfaces with severe wear, spraying or electroplating can be used to repair them.

(2)Welding repair:

• For cracks or missing parts, select appropriate welding materials and processes for welding repair.
• After welding, necessary heat treatment is performed to eliminate internal stress and restore the hardness and toughness of the mould.

(3)Replacement Parts:

• For severely worn or damaged parts (such as guide columns, cooling channels, etc.), consider direct replacement.
• Make sure that the material and size of the replacement part are identical to the original part.

4.Processing and Adjustment

(1)Finishing:

• Finish the repaired mould to ensure the matching accuracy of each component.
• Use CNC machine tools or other processing equipment to carry out necessary processing.

(2)Inspection and adjustment:

• Check the size and shape of the repaired mould to ensure it meets the design requirements.
• Make minor adjustments as needed to ensure proper functioning of the mould.

5.Assembly and testing

(1)Reassemble the mould:

• Reassemble the mould components in the recorded order to ensure that the components fit well.

(2)Functional test:

• Perform functional tests on the injection moulding machine to ensure that the mould can work properly and produce qualified molded parts.
• Check whether the mould’s cooling system, exhaust system, etc. are normal.

6.Recording and Maintenance

(1)Record the repair process:

• Keep detailed records of the mould repair process, materials used and repair results for subsequent maintenance and management.

(2)Regular maintenance:

• After repair, regularly inspect and maintain the mould to detect and solve potential problems in time.