Standards for Scrapping Aluminum Extrusion Dies: Based on the company's articles of association, under the service-oriented management model, this standard is formulated to regulate the management of aluminum plant molds, improve mold utilization efficiency, and ensure production.
There are many reasons for scrapping aluminum molds: Firstly, the working conditions of aluminum extrusion molds are very harsh, as they endure severe friction and wear under high temperature and high pressure. According to on-site production statistics, the main forms of mold failure are as follows: (1) friction and wear failure accounts for 65%, (2) fatigue crack failure accounts for 18%, and (3) plastic deformation and collapse failure accounts for 15%. The criterion for determining a failed mold is when the extruded product cannot meet product standard requirements and cannot be repaired. The service life of the mold is generally described by the effective throughput.
1. Scrapping Process: When a mold is found to be damaged or worn after use and cannot be repaired, the Mold Maintenance Section of the Manufacturing Department fills out a mold scrapping application form. After review by the company's Deputy General Manager and approval by the General Manager, the scrapping is carried out. The Technical Department then applies for the creation of a new replacement mold.
2. Scrapping Standards: The standards for mold scrapping refer to relevant national regulations and the company's established asset management procedures, as follows:
Obsolete technical and quality standards
(1) When the product has stopped accepting orders and the products made by the mold have no use.
(2) When the mold has reached the end of its life and is seriously damaged, making it unusable for repairs.
(3) Due to design changes, when the original product changes and the mold cannot be modified or repurposed.
(4) When the mold is cracked and cannot meet the surface roughness requirements of the product process.
(5) When the mold has a high defect rate, and more than three "Countermeasure Meetings" have been held without success.
(6) When the mold has multiple weld burns, frequently breaks, and cannot complete one shift of production normally.
(7) When the mold's large inserts are cracked, and remaking the inserts is not economical.
(8) When the mold, due to design or manufacturing reasons, frequently sticks, has dimensional deviations, and low efficiency.
(9) When other factors render the mold useless.
