Have you ever paid attention to the inside of a stainless steel water tumbler or water bottle when you bought it？Have you noticed that some of te inside walls of the stainelss steel water bottles have a line , and some do not? Why? What’s the difference between the two inner liner?and with one is better? whether it is the stainless steel cup terminal consumer market or the B-end procurement market on the cup liner with a welding line of the process will affect the holding time will have some questions, then the inner liner with welding line of the thermos cup will affect the holding time? A: No

In fact, the thecnology of the inner wall thermos cup mainly divided into two types. Called water swelling processing and stretching processing.

The water swelling process is to form the pipe through the laser welding process and then the water expansion process is processed into the cup body, so there will be laser welding lines inside. The stretching process is to process the water cup body in another way, and there is no welding line inside.

Which process to use the cup liner ,depends on the design of the cup and the control of the cost. Theoretically, all stainless stell inner liners can use the stretching process or water rise process, the greater the tensile range, the higher the requirements of the mold and production processing requirements, the more expensive the relative cost. And the cost not everyone is willing to bear.Compared with the stretching process, the difficulty required by the water swelling process will be lower, At the same time, the relative cost is more affordable and more acceptable to the public.

All the water swelling pipe are welded by laser, it’s a whole weld,compare to common weld it is very strong, the laser welding has been quite mature in the application of stainless steel water cups production, there will be almost no quality problems caused by poor welding. What affects the insulation performance of the cup is whether the processing technology is qualified and the vacuum market is controlled. The qualified tube drawing process will not affect the insulation of the cup because there is a laser welding line.

Some people pay more attention to apperance, some people pay more attentionto cost performance, it all depends on personal perference. Stretching inner liner with a smooth surface superior tan the water swelling inner liner,but at the same time, he swelling inner liner has a better cost performance in the same conditions. It is an indisputable fact.that both the stretching and water swelling inner liner has the same insulation effect!

We,wuyi jiurui housewarse professional manufacture variety of stainless steel water bottles, support stretching inner liner and water swelling inner liner process, OEM/ODM accepted, Welcome to inquriy.

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