What should I do if the security door of my house opens very loudly

Let's take a look at what the sound is, if it is a hinge, you can use some lubricating oil, it is also possible that there is something dirty inside, you can wash it with water first, and it may be that the rubber strip is loose, if the hinge is loose, the door leaf is small, and it is possible to squeeze into the rubber strip, there will be a sound, if it is the tongue of the lock, do not use lubricating oil, you can use pencil foam, the effect is very good, you can try.

I've also encountered it, and it's good to have a little salad oil on it!

It's easy to solve, keep a grease at home, .For derusting lubrication of hinges and hinges.

Well-known hinge brands such as Macalon use hinge grease from Tiger Head Hotolube or Kluber. It is colorless and transparent, with good adhesion and durability. There is a 130-gram tube package in the leopard, which is also suitable for sliding door slides, etc.

Apply grease directly to the hinge and it will slowly penetrate into the hinge. The maintenance interval is four to six months.

It is not advisable to use lubricating oil or ordinary butter, which is easy to lose or freeze at low temperature, and will volatilize harmful odors. Vegetable oil quickly rancid, develops odors and loses its lubricating effect.

If it is caused by friction between the door page and the door frame, you can rub some solid lubricating oil (butter) at the friction position. Then adjust it according to your hinge. It is advisable to rub the butter and wait for a professional to adjust it.

Hinge tune up. Or ask a professional to change the all-copper hinge.