Northwest Aluminium's "Accelerated by Competition" Significantly Increased Yield of Extrusion Castings

At the beginning of November, Northwestern Aluminum's latest extruded fused cast-iron materials showed that the qualified rate of finished products was over 96%, and in particular, the rate of one-time inspection of cast-in-place bars increased by 5%, which broke through the bottleneck of production and significantly improved the yield rate.

It is understood that since September, Northwest Aluminum has earnestly implemented the spirit of the work conference on improving quality and reducing consumption of Chinalco, and quickly carried out four labor teams in the extrusion plant to carry out the labor competition to improve product quality and control the process, and set up a competition unit. The team of leaders of the contest with the heads of functional departments conducts various tasks such as organization, coordination, and assessment.

In order to refine the contents of the activities, the melting and casting workshop set up a production control visual board covering safety, output, finished product rate, reject rate, auxiliary material consumption, and civilized production data at the competition site, which demonstrated the entire process of the labor competition at a glance. Through the scores of the visual board, you can intuitively see the pros and cons of each team in this activity, and also provide strong data support for the team to improve quality and reduce consumption. In the activity, detailed records are the most delicate part in production control. Separate statistics are made on the finished product rate. The method of addition and subtraction is strictly examined according to the setting table. Using data to speak and directly exposing problems to sum up experiences, provided important basis for the development of activities and the improvement of the yield of cast ingots. It also changed the sense of quality of employees of the team and formed the concept that I worked to benefit me.

In the competition activities, the melting and casting work area will hold a special meeting once a month to summarize the highlights, evaluate the lack of analysis, and formulate optimization measures. We must give full play to the technical advantages of the labor model studios, technicians, and team leader, and take a new pairing with the old, refine the operation methods, eradicate the arbitrariness in the past, find solutions to the problems, effectively improve product quality, and reduce the Consumption of raw materials and waste products. The participating employee Li Baoyuan said: “Now everyone strictly follows the standard procedure, and after all kinds of raw and auxiliary materials have been fully understood, they will work with technical staff to study how to control and control from which aspects. The details of quality are improved, product quality is significantly improved, and power consumption and consumption of auxiliary materials are further reduced."

At the site of the labor competition, it can be seen that the casting teams in each participating team have a neat environment, clean equipment, neatly arranged tool materials, and a new look at the civilized production on the spot, which has greatly improved.