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Manufacturers that provide high-quality label nameplates OEM services.
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Manufacturers that provide high-quality label nameplates OEM services.
The first thing to look at is the appearance of the cup. Check whether the surface of the inner tank and the outer tank are uniformly polished, and whether there are bruises and scratches;
Second, see whether the mouth welding is smooth and consistent, which is related to whether the feeling of drinking water is comfortable;
Third, look at the poor quality of plastic parts. It will not only affect the service life, but also affect the sanitation of drinking water;
Fourth, see if the internal seal is tight. Whether the screw plug and the cup body fit properly. Whether it can be screwed in and out freely, and whether it is leaking. Fill a glass of water upside down for four or five minutes or shake it vigorously to verify that there is no water leak. Look at the thermal insulation performance, this is the main technical index of the vacuum flask. Generally, it is impossible to check according to the standard when purchasing, but you can check it by hand after filling it with hot water. The lower part of the cup body will heat up two minutes after the non-insulated cup is filled with hot water, while the lower part of the insulated cup is always cool.
There are several specific methods as follows:
1. Simple identification method for vacuum insulation performance: Pour boiling water into the thermos cup and turn the cork or lid clockwise for 2-3 minutes, and then touch the outer surface of the cup with your hand. If the cup body has obvious warming phenomenon, it means the product The vacuum has been lost, and a good heat preservation effect cannot be achieved.
2. Sealing performance identification method: After adding water to the cup, tighten the cork and lid in a clockwise direction, place the cup flat on the table, and there should be no water leakage; the screwing of the lid and the mouth of the cup should be flexible and there is no gap .
3. Plastic parts identification method: new food-grade plastics are characterized by low odor, bright surface, no burrs, long service life and not easy to aging. Ordinary plastics or recycled plastics are characterized by big smell, dark color, many burrs, and plastics are easy to age and break easily.
4. Simple identification method for capacity: the depth of the inner tank is basically the same as the height of the outer shell, and the capacity (with a difference of 16-18MM) is consistent with the nominal value. Some low-quality vacuum flasks add sand and cement blocks to the cup to make up for the missing weight. Misunderstanding: A heavier cup (pot) is not necessarily good.
5. Simple identification method for stainless steel materials: There are many specifications of stainless steel materials, of which 18/8 means that the composition of this stainless steel material contains 18% chromium and 8% nickel. The material that meets this standard is a green product that meets the national food-grade standard. Rust-proof and corrosion-resistant. The color of the ordinary stainless steel cup is whitish and dark. If it is soaked in 1% salt water for 24 hours, it will produce rust spots. Some of the elements contained in it exceed the standard, which directly endangers the health of the human body.
[Disclaimer: The above content comes from the Internet, and does not represent the views of this site. I hope some of the content can help you. 】
We (Alice) are a manufacturer specializing in the production of nameplates for daily necessities. We have 21 years of experience in making furniture signs. We can produce zinc alloy, aluminum alloy, stainless steel, copper, brass, iron, and titanium. , PC, PET, PE, pvc and other different labels.
Contact us E-mail: sales03@alicelogo.com
Alice has dedicated to precise product since it was established in 1998, especially focus on furniture and electronic appliances field as a tendency.
