The double-layer stainless steel vacuum barrier in the body of the vacuum insulated tumblers can block heat transfer and achieve insulation effect.
What is the HS code of the vacuum insulated tumblers?
The vacuum insulated tumblers should be classified under HS code 9617.0090.
Is it only personalised water bottles bulk that are classified under 96.17?
Of course not, there are also thermos bottles and other similar vacuum personalised water bottles bulk containers, as long as they are complete products. Such items include vacuum jars, pots and bottles that can keep liquids, foods or other products at a constant temperature for a considerable period of time.
They consist of a double-walled container (bottle) usually made of glass, with a vacuum between the two walls, and covered with a protective shell made of metal, plastic or other materials, sometimes wrapped with paper, leather, varnished cloth, etc. The gap between the bottle and the shell can be filled with insulating materials (fiberglass, cork or felt). This item also includes double-walled stainless steel personalised water bottles bulk without protective shells with insulation function.
What are the processes of stainless steel insulated tumblers?
Stainless steel insulated tumblers consists of six parts: outer shell, outer bottom, liner, inner bottom, bottom cover and cup cover. The outer shell and liner are made of 304 stainless steel tubes through multiple processes, the outer bottom and inner bottom are made of stainless steel sheets, and the bottom cover is plastic injection molded.
The stainless steel insulated tumblers body are then flattened, polished, electrolyzed, polished, painted, temperature measured, pad printed, baked, ultrasonically welded, plastic bottom cover, cleaned, packaged and shipped.
What is the main production process of the metal insulated tumblers?
The main metal insulated tumblers production process are: weld the inner bottom, liner, outer shell and outer bottom into a whole, send them into a high vacuum brazing furnace, use tailless vacuum technology to vacuum the middle layer between the outer shell and the liner, and melt the glass solder at high temperature for sealing.
What is the principle of insulation?
The vacuum layer constitutes the fundamental technology underpinning the metal insulated tumblers’s thermal performance.By isolating the outside, the water in the cup slows down the heat dissipation speed, thereby achieving the purpose of heat preservation.
The thermos cup is developed from the hot water bottle (thermos bottle). The principle is the same, but the metal insulated tumblers are more convenient for people to carry in daily life. Especially for office workers and students, they can’t put it down!
What are the materials of the stainless steel water bottles?
The inner liner of the stainless steel water bottles are mostly made of stainless steel. Stainless steel is an alloy material, which mainly contains iron, carbon, rare metals and other materials. It has excellent corrosion resistance, easy to form, high strength, good toughness and other characteristics.
Currently on the market, there are mainly 201, 202, 304, 316, 430 and other different materials of stainless steel. However, only 430 (18-0), 304 (18-8), and 316 (18-10) can really be used for food. The number in front of the code represents the nickel content, and the number behind it represents the chromium content.
Poor quality stainless steel water bottles refer to thermos cups made of 201 and 202 stainless steel. Stainless steel contains a variety of alloy elements, and trace impurity elements may be introduced during smelting, so metal ions will be precipitated. Industrial stainless steels such as 201 and 202 will precipitate a large amount of heavy metals, such as cadmium, during smelting. Trace amounts of cadmium entering the human body will be biomagnified and accumulated, endangering human health.
How can we choose a good eco friendly water bottles bulk?
Since poor quality eco friendly water bottles bulk still exist in the market, how can we open our eyes and carefully identify high-quality eco friendly water bottles bulk ? We must try to choose products produced by regular manufacturers, such as FuWinn, which has been engaged in the stainless steel drinkware market for many years and is a very reliable supplier, worthy of your trust.
We can also soak the cup in 1% salt water for 24 hours. If rust spots are produced, it means that some elements contained in the eco friendly water bottles bulk has exceeded the standard, which is also unqualified, and will directly threaten human life and health. We must remind our family and friends around us to observe carefully when purchasing stainless steel water bottles and buy qualified and regular vacuum insulated tumblers.
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