Can stainless steel vacuum beakers be used daily?

Stainless steel vacuum beakers are best not to be used too often, as they can cause heavy metal poisoning.

BeakerIt cannot be heated directly.

In the glass instrument, only the test tube can be heated directly, and the heating beaker needs to be padded with asbestos netting.

The bottom surface of the beaker is large, and it can be heated directly with a flame, which can only be burned to a part, so that the glass is heated unevenly and causes explosion.

In order to prevent explosions, the water on the outer wall should be wiped clean and then heated. Because the beaker has the same caliber up and down, it is very convenient to take liquids and do simple chemical reactions.

The most commonly used reaction vessels. When the outer wall of the beaker is scaled, the volume of solution inside the beaker can be estimated.

Attention should be paid to the use of beakers:

1. When heating the beaker, an asbestos net should be padded to evenly heat the house. The beaker cannot be heated directly with a flame, because the bottom surface of the beaker is large, and if it is heated directly with a flame, it can only be burned to a part, which will cause the glass to be heated unevenly and cause explosion. When heating, the outer wall of the beaker must be wiped dry.

2. When used for dissolving, the amount of liquid should not exceed 1 3 of the beaker volume, and gently stir with a glass rod. During dissolution or dilution, stir with a glass rod without touching the bottom or walls of the cup.

3. When the liquid is heated, do not exceed 2 3 of the beaker volume, and 1 3 of the beaker volume is generally appropriate.

Unlikely**. The vacuum vacuum cup is subjected to inward pressure. This is not going to happen. It can only be produced when subjected to a huge force that expands outward.

Expansion: The stainless steel thermos cup is made of double-layer stainless steel inside and outside, using welding technology to combine the inner tank and the outer shell, and then using vacuum technology to extract the air in the interlayer between the inner tank and the outer shell to achieve the effect of vacuum insulation.

In fact, the length of the holding time depends on the structure of the cup body and the thickness of the cup material.

In general, the thinner the cup material, the longer it will stay warm. However, the cup body is easy to be damaged and deformed, which affects the service life; Measures such as metal film and copper plating on the outer layer of the inner tank of the vacuum cup can also increase the degree of heat preservation; The large-capacity, small-caliber vacuum cup has a longer holding time, while the small-capacity, large-diameter vacuum vacuum cup has a shorter holding time; The service life of a vacuum cup also depends on the cleaning and evacuation time of the inner layer of the cup and, most importantly, the structure of the vacuum furnace.

The vacuum equipment used in the society includes vacuum exhaust table and vacuum brazing furnace, and there are about two types and four types. The first type is the tail vacuum exhaust table; Another type of brazing furnace type. The brazing furnace type is divided into: single chamber, multi-chamber, and multi-chamber with increased pumping speed.

Single-furnace integral vacuum brazing furnace. The cycle time of the furnace is long, and if the manufacturer wants to improve the production efficiency and shorten the vacuum time, it will affect the service life of the cup. The lifespan of the cup is also only about 8 years.

Tail vacuum cup exhaust table and advantages: There is tail exhaust that is, the vacuum cup produced by the vacuum exhaust table, the heating temperature is about 500 when vacuuming, and the shell of the vacuum cup is not easy to deform, but the copper tube welding is easy to leak, and it should be especially protected when processing semi-finished products.

In addition, a large category is vacuum brazing furnace type, which is roughly divided into three types, I didn't expect it, although the vacuum insulation cup we usually use is no different from the general vacuum cup in appearance, the vacuum insulation cup is much more complicated by the general vacuum insulation cup in the production process, and the technical difficulty is much higher. Therefore, the vacuum insulated cup is at least twice as high as the average thermos cup.

Stainless steel vacuum Baona Huwen cup material requirements and product performance are different from stainless steel thermos cup, vacuum cup requires good materials, thickness and stainless steel content to be high, if these do not meet the requirements, it will directly affect the vacuum effect of the cup, otherwise it may be produced directly is the Pucha excitation cup.

1. The structure of stainless steel vacuum cup.

There are many layers inside the thermos cup, and its interlayer is generally vacuum to prevent heat conduction, and then electrolytic treatment, so that heat radiation can be blocked. Some cups have cork stoppers on their lids, also to prevent heat conduction.

2. Maintenance of stainless steel vacuum cup.

In the process of use, it is necessary to avoid the collision and impact of the virtual eggplant socks, so as not to damage the cup or plastic, resulting in thermal insulation failure or water leakage. When tightening the screw plug, the force should be appropriate, and do not rotate too much, so as to avoid the failure of the screw buckle. When you drink coffee, tea or beverages regularly, it is normal for the inner tank to change color, and it can be removed with a toothpaste and toothbrush.

If not in use for a long time, it needs to be cleaned and stored.

<> beaker can be dismantled to heat but there are some places to pay attention to, when the beaker is heated, the outside water should be wiped dry, it is best to pad the asbestos mesh hole in the beaker, so that it is evenly heated, to avoid the beaker from being heated unevenly and bursting, after heating, let the beaker cool naturally, do not directly take cold water to flush, to avoid thermal expansion and contraction.