ã€China Aluminum Network】 (1) Residual flux and welding slag left after welding in the weld seam and nearby will destroy the passivation film on the aluminum surface, and sometimes it will corrode aluminum parts and should be cleaned. Simple shapes and common parts can be cleaned by simple methods such as hot water flushing or steam blowing. The aluminum parts with high requirements and complex shapes are brushed with a bristle brush in hot water and then immersed in a solution of chromic anhydride or potassium dichromate at a concentration of 2% to 3% for 60 minutes at about 60°C to 80°C. ~ 10min, and scrubbing with a bristle brush, then washing in hot water, drying with an oven, or drying with hot air, can also be naturally dry.
(2) Post-weld heat treatment Aluminum containers generally do not require heat treatment after welding.
Hospital Access Supervisory Control and Management System, short for HASCMS, is an intelligent access supervisory control and management system born with the development of hospitals, Internet of Things, Automatic Door technology. The system structure of Hospital Access Supervisory Control and Management System includes access control system, access supervisory control system and access management system. Functions of Hospital Access Supervisory Control and Management System are authority management, condition monitoring, big data function and space management. Hospital Access Supervisory Control and Management System is well applied to hospital automatic access doors, such as Hospital Main Entrance Door, hospital anti-radiation Hermetic Door , hospital operating room hermetic door, Hospital Access Partition Door, hospital emergency exit door, hospital administrative office door, hospital ICU ward door and hospital fire door.
Hospital Access Supervisory Control and Management System
Hospital Main Entrance Door,Anti-Radiation Hermetic Door For Hospital,Hospital Access Partition Door,Icu Ward Door For Hospital
Ningbo Gdoor System Control Technology Co., Ltd. , http://www.gdoor-cn.com