Our Company is a professional production of stainless steel vacuum cups, stainless steel cup, such as thermal insulation products business.
There are many layers inside the thermos cup, and its interlayer is usually vacuum to prevent heat conduction!It is then plated with silver, which blocks heat radiation.Some cup lids have corks on them to prevent heat conduction.
Insulation layer The insulation layer material is a lightweight insulation material with a small thermal conductivity, and some also find slopes to form slopes.The thickness of the insulation layer depends on the local climate and room temperature requirements.
A vacuum cup is generally a container made of ceramic or stainless steel with a vacuum layer to hold water. It has a lid at the top and is tightly sealed. The vacuum insulation layer can delay the heat dissipation of the water and other liquids inside, achieving the purpose of insulation.
Vacuum cups have evolved from thermos bottles, and the insulation principle is the same as thermos bottles, but people make bottles into cups for convenience.
Purchasing Tips
There are many varieties of stainless steel thermos cups sold on the market, and the prices vary greatly. For some consumers, they do not understand the principle and often spend a lot of money but cannot buy a satisfactory product.How can I buy a high-quality vacuum insulated cup?First, look at the appearance of the cup.First, check whether the surface polishing of the inner and outer tanks is uniform, and whether there are bumps and scratches; second, whether the mouth welding is smooth and consistent, which is related to whether the feeling of drinking water together is comfortable; third, whether the quality of the plastic parts is poor.Not only will it affect the service life, but it will also affect drinking water hygiene; Fourth, check whether the internal seal is tight.Whether the screw plug and cup body fit properly.Whether it can be screwed in and out freely, and whether it is leaking.Fill a cup of water and turn it upside down for four or five minutes or shake it hard a few times to verify whether there is a leak.Let’s look at the thermal insulation performance, which is the main technical indicator of the thermos cup.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 that is not insulated will heat up after two minutes of filling the hot water, while the lower part of the insulated cup will always be cool.There are several specific methods: 1. Simple identification method of vacuum insulation performance: Pour boiling water into the thermos cup and tighten the stopper or lid clockwise for 2-3 minutes. Then touch the outer surface of the cup body with your hands. If there is any Obvious warming phenomenon indicates that the product has lost its vacuum degree and cannot achieve good thermal insulation effect.2. Sealing performance identification method: After adding water to the cup, tighten the bottle stopper and cup lid clockwise, and place the cup flat on the table. There should be no water leakage; the lid and cup mouth should be flexibly screwed together without any gaps. .3. How to identify plastic accessories: The characteristics of new food-grade plastics are low odor, bright surface, no burrs, long service life and not easy to age.Ordinary plastic or recycled plastic is characterized by strong smell, dark color, many burrs, and the plastic is easy to age and break.4. Simple capacity identification method: the depth of the inner tank is basically the same as the height of the outer shell, (the difference is 16-18MM) and the capacity is consistent with the nominal value.Some poor quality thermos cups add sand and cement blocks to the cup to make up for the missing weight.Misunderstanding: A heavier cup (pot) does not necessarily mean a better cup.5. Simple identification method of stainless steel materials: There are many specifications of stainless steel materials, among which 18/8 means that the stainless steel material contains 18% chromium and 8% nickel. Materials that meet this standard meet the national food grade standards and are green and environmentally friendly products. Anti-rust and corrosion-resistant.Ordinary stainless steel cups appear white and dark in color. If soaked in salt water with a concentration of 1% for 24 hours, rust spots will appear. Some of the elements contained in them exceed the standard and directly endanger human health.
