What is the the cold preservation effect of the thermos water bottle?
The thermos water bottle, as a product that almost everyone has used, can't be more familiar with. Moreover, there are many brands and materials of the thermos water bottle produced on the market. Many people have all kinds of doubts when they purchase the thermos water bottle. They don't know what kind of thermos water bottle is better. Will the thermos water bottle material cause harm to human body? Will the insulating effect decrease after a long time of use? etc.
Generally speaking, the inner liner of the thermos water bottle is divided into stainless steel, ceramics, purple sand, glass, etc. the thermos water bottle of different types of inner liner is different. From the four most important factors of the portability, quality, heat preservation effect and aesthetics of the thermos water bottle, the most popular one is the thermos water bottle made of stainless steel!
At present, the most common types of stainless steel thermos water bottle are 201, 202, 304 and 316. I believe many non professional users can't distinguish these types.
In short, compared with 201 and 202, 304 and 316 are obviously superior to the former two in terms of corrosion resistance, high temperature resistance, stability, stamping, toughness, etc. 201 and 201 steel are relatively easy to rust due to their high manganese content, and the material is relatively hard and easy to crack, while 304 and 316 contain more chromium and nickel, and the formation of chromium rich oxide on the steel surface can protect the steel from rust, of course, the latter two are far away in terms of price Far higher than the first two!
So which is better, 304 or 316? First of all, 304 is mainly used for corrosion-resistant containers, tableware, and medical equipment. 316 stainless steel is mainly used in the food industry, clock accessories, pharmaceutical industry and surgical equipment, etc. in fact, from the perspective of use, you should also know that 316 is definitely better!
In addition, due to the addition of Mo element, the corrosion resistance and high temperature resistance of 316 stainless steel are much higher than that of 304. The high temperature resistance of 316 stainless steel can reach 1200-1300 ℃, and 304 can withstand 800 ℃.
To sum up, as long as we remember a skill, we can. Generally, the larger the numerical value of the stainless steel model of the thermos water bottle, the better the description. For the thermos water bottle appearing in the current market, we can choose the 304 stainless steel thermos water bottle considering the price factor, and the 316 and above type thermos water bottle for the pursuit of health and quality!
The selection of stainless steel thermos water bottle focuses on the material of stainless steel. After determining what type of stainless steel material, choose the appearance and portability, then the decision becomes very simple!
Besides keeping hot, the cold preservation effect of the thermos water bottle is also very good.