HOW TO TEST A STAINLESS STEEL VACUUM BOTTLE'S VACUUM RATE
HOW TO TEST A STAINLESS STEEL VACUUM BOTTLE'S VACUUM RATE ?
Stainless Steel Vacuum Bottle Supplier|China Stainless Steel Bottle Manufacturer/ ODM/OEM Factory|Carkin Industry and Trade Ltdhttp://www.thestainlesstumbler.com/
Contact: sales2@thest
Usually, our factory proceeds 3 times 100% vacuum test. Maybe you will ask us when and how to test a vacuum bottle’s vacuum rate. That’s what we will introduce in this article.
The first vacuum test for vacuum insulated water bottles
Before stainless steel vacuum bottle's inner wall and outer wall welded together, we need to make sure all bottles’ inner walls are sealed well and without any leakage. Therefore we proceed with the first test. Below photo can make you understand this procedure well. If blister found around the bottle, then we can know this bottle is leaking. On this processing, we can move out the unqualified bottles to make sure a better vacuum rate on the second vacuum test.
The second vacuum test for vacuum insulated water bottles
This step happens after we weld vacuum bottles’ inner wall and outer wall together. At this procedure, we need to put all the welded bottles together with getters and welding solders into vacuum equipment.
After 4-5 hours under 500℃ high temperature, we take out the vacuum bottles to proceed with the second vacuum test.
You can see in the below photo, we are testing bottles in the temperature machine under 450℃. Each bottle is required to test by at least 35 seconds. After 35 seconds, we use hands to touch the surface of the bottles one by one, if feel hot, it proves that bottle is not vacuum, we need to move it out. By this way, we can make sure the water bottles flow to the next procedure are qualified.
The third vacuum test for vacuum insulated water bottles
After electrolytic or sandblasting for inner wall of bottles, we proceed with outer wall polishing. When finished the polishing, we make the third vacuum test on temperature machine under 450℃ by at least 35 seconds which operation is same as the second vacuum test.
In a word, above 3 steps are all 100% vacuum test. That means each bottle is tested 3 times to judge if it’s vacuum bottle or not. By those processing, we are confident to say our stainless steel vacuum insulated water bottles can reach 99.8% vacuum rate.
For more questions on vacuum rate on our vacuum bottle, please feel free to leave us a message on our e-mail: sales2@thest
About Carkin Industry and Trade Ltd:
We, Carkin Industry and Trade Ltd, is a professional OEM/ODM manufacturer and designer of quality stainless steel bottle, vacuum bottle, vacuum flask, thermos, kids bottle, sports water bottle, travel mug, coffee mug, tumbler, cup, mug, Tritan bottle, PP bottle and aluminum bottle on households and gift promotion markets.
Based on current 40,000pcs/daily production capacity of stainless steel bottle, we are keeping investing new production equipment as our customers keep growing. With a professional team including Designers, Engineers, Manufacturers, Quality Control Experts and Merchandisers, we are able to offer our customers one-stop manufacturing and design solutions– from concept to the final finished water bottles.
We warmly welcome you to find us, learn about us and talk about your new ODM project on water bottles at sales2@thest
