For example: door handles at home, shower heads for showers, faucets in the kitchen, hinges in wardrobes, pull rods in suitcases, zippers on ladies' bags, etc. may all be made of hardware.
Locks are the most easily overlooked hardware accessories in daily life, but in daily life we have to deal with all kinds of locks, which play a vital role in security. Most people neglect to manage the locks after they are installed, and basically do not do any maintenance on the locks. Here are some tips for maintaining locks.
1. Some zinc alloy and copper locks will "grow spots" after a long time of use. Don't think this is rust, it is actually oxidation, just use a surface wax spray to "remove the spots".
2. After the lock has been used for a long time, the key will not be smooth when inserted and removed. At this time, just apply a little graphite powder or pencil powder to ensure smooth insertion and removal of the key.
3. The rotating parts of the lock body should always be lubricated to keep it rotating smoothly. It is also recommended to check whether the fastening screws are loose every six months to ensure that they are tightened.
4. The lock cannot be exposed to rain for a long time, otherwise the small spring inside the lock will rust and become inflexible. The rain contains nitric acid and nitrates, which will also corrode the lock.
5. When the key is turned to open the door lock, do not pull the key to open the door directly without the lock core returning to its original position.