How to distinguish the material of stainless steel water cup

1. It can be identified by smelling it. If the Thermos cup is made of food-grade plastic, its smell will be smaller. The surface will be bright, burr-free, has a long service life and is not easy to age. If it is ordinary plastic, it will be inferior to food-grade plastic in all aspects. Identification of stainless steel materials Forstainless steel thermos cups, the quality of the material is very important.

2. Identification of stainless Steel Thermos cup 1. Simple identification method of thermal insulation performance. Pour boiling water into the thermos cup and tighten the stopper or lid clockwise for 23 minutes. After 23 minutes, touch the outer surface of the cup body with your hand. If the cup body is obviously warm, it means The product has lost its vacuum degree and cannot achieve good thermal insulation effect. 2 Sealing performance identification method.

    3. There are several ways to identify the material of the thermos cup. The simplest way to identify it is to pinch it with your hands. If the shell           of the thermos cup feels a little soft, it means that the material of the thermos cup is most likely 201. Material, and the liner made of 304               material has a metallic white luster, while the liner made of 201 material has it.

4. When you buy a stainless steel vacuum cup, you can use the following identification methods: First, look at the appearance of the cup. First, check whether the surface polishing of the inner and outer tanks is uniform, and secondly, whether there are bumps and scratches. Whether the mouth welding is smooth and consistent depends on whether it feels comfortable when drinking water. The third factor is the poor quality of the plastic parts.

5. You can use stainless steel identification potion to distinguish the true and false 304 Thermos Cups. Just drop the potion on the stainless steel. 2. Look at the color and reaction speed to determine the stainless steel model. 201 stainless steel shows dark red, 202 shows red, 3301 shows light red, and 304 shows none. 304 is a versatile stainless steel 4 color or light yellow.

6. Simple identification method of stainless steel materials. There are many specifications of stainless steel materials. Among them, 188 means that the stainless steel material contains 18% chromium and 8% nickel. Materials that meet this standard meet the national food grade standards and are green and environmentally friendly products. The products are rust-resistant and corrosion-resistant. Ordinary stainless steel The cup body will appear white or dark in color if 1% salt water is added.

7. 1 Potion distinction: There are potions on the market specifically designed to detect 304 stainless steel and 316 stainless steel. If you want to determine whether stainless steel is made of 316, you can purchase 316 stainless steel potion to detect it. 2 Spectrometer to detect stainless steel. The spectrometer can detect stainless steel wire material. As long as the element content is detected, you can know whether it is Tao 316 or not.

8. Do not believe the stamped symbols on stainless steel products that cannot be distinguished with the naked eye. Many 201 are stamped with 304. If you can use a magnet to distinguish 201 and 304, the magnet can be made into a thermos cup. It needs to be cold processed. 201 is magnetic after cold processing, which is better than ordinary steel. Weak, but you can clearly feel the suction. 304 is not magnetic, or very strong.

9. 5 Simple identification method of stainless steel materials. There are many stainless steel material specifications. Among them, 188 means that the stainless steel material contains 18% chromium and 8% nickel. Materials that meet this standard meet the national food grade standards and are green and environmentally friendly products. The products are rust-proof. The color of the corrosion-resistant ordinary stainless steel cup will appear white and dark if the concentration is 1%

10. Below I will first introduce these two kinds of stainless steel, and then focus on the comparison of 304 stainless steel. 304 stainless steel is the most common stainless steel brand in our lives. Most stainless steel tableware, stainless steel spoons and cups are made of this material. This kind of stainless steel It has more contact with acid and alkali, so it has good acid and alkali resistance, and.

10. 2 In addition, you also need to look at the material of the lid, coaster, straw, etc. of the thermos cup to see if they are made of pp material or edible silicone. 3. Strong tea test method. If the liner of the thermos cup is marked with 304 stainless steel and 316 stainless steel, then we If you are still worried, you can use the "strong tea test method" and pour strong tea into the thermos cup.

12. 316 stainless steel is the second most widely used steel type after 304. Its main feature is that it is more resistant to acid and alkali and high temperature than 304. It is mainly used in the food industry and surgical equipment as daily thermos cups. , 304 is enough to meet the requirements, but if the price is the same, you can consider using 316 material.

13. If you want to choose a water cup, then the stainless steel material must be the best. Everyone should try to choose 306 stainless steel. 2 Nowadays, as long as it is an imported stainless steel container, the state stipulates that food-grade stainless steel must be used, as long as it is purchased from a regular manufacturer. Stainless steel water cups can be used with confidence. The best stainless steel is 306.

14. If you want to choose a water cup, then the stainless steel material must be the best. Everyone should try to choose 306 stainless steel. Nowadays, as long as it is an imported stainless steel container, the state stipulates that it must use food-grade stainless steel material, as long as it is purchased from a regular manufacturer. Stainless steel water cups can be used with confidence. The best stainless steel is 306, 306.

15. The thermal insulation effect of the thermos cup made of 201 is worse than that of 304 stainless steel. Generally, the 8 hours of 201 is very impressive, but the 304 will last longer than 8 hours and lower than 24 hours. However, the 304 material is more expensive, so it is generally better. I do more 201.

16. 1 Stainless steel water cup 306 stainless steel is the best material. Food grade stainless steel is divided into 304 stainless steel, 305 stainless steel, 306 stainless steel, etc. Among them, 304 is food grade stainless steel, 316 medical grade stainless steel. 2. It should be noted that do not use stainless steel to drink tea, which is usually contained in tea. A variety of vitamins, in addition to a large amount of theophylline.

17. Another type is metal cups, and common metal cups are made of stainless steel, especially thermos cups. Stainless steel is relatively stable, but common acidic drinks may affect it, so stainless steel is not recommended. If you want to choose a stainless steel water cup to hold carbonated drinks such as Coke for a long time, then.

18. First of all, how to distinguish stainless steel and stainless iron? Use a magnet to distinguish the magnetic 410 or 430 stainless steel, and the non-magnetic stainless steel 316, 304 or 201. The second step is to distinguish the 201, 304 and 316 stainless steel materials and use stainless steel potion to identify them. Higher levels require a spectrometer, which cannot be seen with the naked eye.