Как определить звукоизоляционный эффект алюминиевого дверного окна?
17 Sep, 2020Noise do harm to person’s body, so it needs to consider that soundproofing effect of aluminum door window when choosing a window. Today JMD share the judgment methods.1. GlassThe selection of hollow laminated glass Windows can meet the needs of high sound insulation. Laminated glass can reduce noise at all frequencies, while insulating glass has a good noise reduction effect for high-frequency noise and all kinds of traffic noise (such as truck passing noise, overhead noise, etc.).The co......
Как обслуживать машину для обжима углов алюминиевых дверей?
16 Sep, 20201. Before the equipment is used, the inspection and maintenance of the equipment shall be done well. The transmission part of the equipment shall be frequently filled with lubricating oil to keep the oil quantity sufficient, so as to avoid the jamming caused by insufficient lubrication and affect the angle setting effect of the angle setting machine. 2. The working medium of the oil pump is hydraulic oil. Keep the oil volume on the middle line of the oil mark to prevent the oil pump from ......