The  thermos cup is double wall and the inner liner is made of glassor stainless steel,its inner liner and outer shell are welded together by welding and other technology, then extract the air from the inner liner and the shell interlayer by vaccum technology to achieve vacuum insulation effect. The thermos cup let people to drink warm water at any time and becomes a reuglar item for daily activites.

Compared with traditional glasses and glass thermos bottles, stainless steel thermos cups have the advantages of better thermal insulation fuction,not easy to damage, high-grade apperance ,convenient and hygienic use.The product division is becoming more and more detailed with the growing consumer market of stainless steel thermos cups, the price from a fwe dollars to hundreds of thousands,and the fuction is no longer limited to heat preservation and insulation.

What are the common unqualified items for the thermos cups in market?

The answer is the capactity and insulation efficiency.

Capacity:it is not only a very important reference for cusumer to buy a thermos cup,but also relate to thermos insulation enfficiency.According to the requirements of the national standard GB/T290606-2013, the larger capacity of thermos cup at the same caliber, the higher the requirements of the thermal insulation efficiency index. It will lead to different requirements for the temperature of the insulation efficiency if the capacity of the thermos cup is not accurate,which will affect the determination of the insulation of the insulation efficiency.The reason for the unqualified capacity is that the mold size deviation of the thermal insulation cup is large,and the main thing is that the production enterprise has the wrong understanding of the deifintion of the capacity in the staindard,and the real capacity can not be accurately measured.

Thermal insulation effiency: the reasons for unqualified thermal insulation cup may be as follows:

1.Vacuum layer destruction

The vacuum layer of the vacuum cup is to extract the air between the two layers of stainless steel to achieve a certain vacuum degree,thereby reducing  the transfer of heat. If the vacuum layer breaks or leaks,the heat will be transferred quickly from the break or leak,resulting in the vacuum cup can not be insulatied.

2.Poor sealing

The seal of thermos cup is not good enough, causing air into the inside of the thermos cups , so that the heat transfer can’t be isolated,thus affecting the insulation effect. The screw buckle loosen, silicone seal aging or brokent are the common reasons.

3.There’s a foreign body in the interlayer of thermos cup

If there is a foreign body in the interlayer of thermos cup, such as sand or other particles,will affect the vacuum degree,thus affecting the insulation effect.

As a professional manufacturer of stainless steel thermos cups,we have years of experences to avoid most of defects from timely self inspections of each process,and all the products are reach the the national standard GB/T290606-2013 .  As a factory,we have a lot of existing samples , any idea for the design pattern can contact with us ,maybe we can supply you the right sample immediately.Any questions please contact with us via:

Email:sales02@jiuruihousewares.com

Whatsapp/Wechat:+8615257938399

www.jiuruihousewares.com

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