304 чашка-термос является одним из популярных предметов первой необходимости среди потребителей на рынке.. При выборе 304 термос чашка, люди подумают, не ржавеет ли он. How did the inner liner of the 304 thermos cup rust?
1.Is it normal for the 1.304 insulated cup to rust
Stainless steel does not mean that it will not rust, but rather that compared to other steels, stainless steel is less prone to rusting. Поэтому, once there are signs of rusting in insulated cups, there may be two possible reasons. One is the problem with the insulation cup material. Although 304 stainless steel has become the mainstream insulation cup material, there are still many 201 stainless steel insulated cups on the market. 201 stainless steel insulated cups have much lower corrosion resistance and are more prone to rusting than 304 stainless steel insulated cups.
Fluoride ions are widely present, such as salt, seawater, sea breeze, soil, и т. д.. Stainless steel corrodes rapidly in the presence of fluoride ions, even surpassing ordinary low-carbon steel.
If the device is in an environment rich in fluoride ions, the best method is to replace the material of the device.
2.Why did the inner liner of the 304 thermos cup rust
Firstly, determine if your cup is truly rusted. A high-quality stainless steel insulated cup should be made of at least 304 нержавеющая сталь. If it is truly rusted, prolonged consumption can be harmful to the body. It is recommended to replace the cup.
If it is a red spot resembling rust that turns red, it may be water rust caused by your water quality.
(1) Dilute citric acid (about 10G) with warm water and pour it into a vacuum insulated cup.
(2) After leaving it for 2-3 часы, wash it clean with a soft brush and rinse it off with clean water.
(3) Let it dry thoroughly.
It can be seen that rusting of 304 insulated cups is a normal phenomenon. High quality stainless steel insulated cups should have at least 304 нержавеющая сталь. If it is really rusting, it means that your cup is not functioning properly. Drinking it for a long time can be harmful to the body. It is recommended to replace the cup.
When using stainless steel 304 pipes, there are several points to note:
(1) Try to prevent scratches on the exterior as much as possible
(2) Keep the pipes clean
(3) Avoid prolonged exposure of pipes to acidic and salty environments.
