sesame cooking oil is also indispensable for our daily life. It is not only a common seasoning, but also a good thing that can reasonably reduce the cholesterol in everyone's body. There are many types of sesame oils on the market, and there are also various advertisements. , Looking dizzy, then how to buy high-quality sesame cooking oil!
The following is the way to identify high-quality sesame oil:
1, look at the color
Fill the sesame cooking oil with a red extract of cooking oil, and pour it into the original tank from high altitude. The pure sesame cooking oil drops are orange-yellow and quickly fade. If the oil droplets are light yellow, it indicates that there is cooking oil;
2, look at the oil droplets
Add a drop of sesame cooking oil to a bowl filled with cold water. The pure sesame cooking oil will initially become thin oil beads, quickly spread out, and turn into multiple small oil beads. The fake and inferior sesame cooking oil are small and thick, which is not easy External diffusion.
3, discharge refrigerator
Put the sesame cooking oil in the refrigerator and refrigerate and observe at minus 10°C. The pure sesame cooking oil is liquid at this temperature, while the counterfeit sesame cooking oil has just begun to solidify.
4. Put in the pot
Put sesame cooking oil in the pot and heat it, if it is stained with animal oil, it will become white; if it is mixed with rice bran oil, it will become white; if it is mixed with cooking oil, it will become white; if it is mixed with winter melon soup and millet soup, it will become muddy. After 30 minutes There is calmness.
Warm reminder: The above has already introduced some common ways to identify high-quality sesame oils in detail. Everyone can use them appropriately for the physical and mental health of themselves and their loved ones. You must buy quality sesame oils without having to spend money on yourself. Lose physical and mental health again. Especially the elderly, must pay attention to watching to prevent poor stores from defrauding ordinary people's money.
The automatic packaging machine is a machine that puts the barrel of flexible packaging materials into the bag, and after the material is filled, it is sealed, and it automatically completes three functions continuously. So do you know how it works?
Control the cutting of raw materials and then weigh them. When the required weight is reached, the system will automatically control it to stop, and then continue to the next step. After the material enters the packaging bag, the computer controls the sealing device of the packaging bag to seal it, and then the cutting device cuts the packaging bag open, so as to achieve the purpose of a set of downward packaging. Moreover, the packaging system is not fixed, and customers can adjust them completely according to their needs to achieve their goals. The public's demand for food, medicine, daily necessities and products from other industries is increasing. Manufacturers cannot meet market demand by using traditional manual packaging. Therefore, they will inevitably seek production automation and equipment to improve production efficiency. Therefore, it is a high-quality, high-performance automatic packaging machine.
The working principle of the automatic packaging machine is to put it on the support device of the tympanic membrane, through the guide rod group winding and tensioning device, the position of the packaging material is detected by the photoelectric detection control device, and the packaging material is rolled into a film tube by the lapel forming machine. On the surface of the filling tube. The automatic packaging machine not only has fast packaging speed, but also can automatically seal and cut automatically while packaging. It can be used not only for packaging materials without trademarks, but also for high-speed packaging of materials with printed trademarks. General machinery made wrong judgments due to the color of packaging materials, leading to packaging errors.
The automatic packaging machine will have its own system in the factory, and the machine will strictly follow this procedure during work. In order to eliminate the error, the design of the packaging machine needs to consider the problem of automatic positioning, and the continuous photoelectric positioning system is divided into two transmission systems: forward and backward, braking and synchronization according to error compensation.
With the improvement of people's living standards, more and more families tend to choose rotary shaft shower screen when purchasing bathroom shower products. How to buy rotary shaft shower screen? Here is a brief introduction for everyone, these details need to be mastered before purchasing.
The so-called rotary shaft shower screen is actually a new product gradually evolved from the overall shower room. It mainly includes the multifunctional shower of the shower room, and at the same time avoids some complex and bulky shortcomings in the shower room. It is a modern small apartment family. The ideal sanitary ware product. Regarding how to purchase a rotary shaft shower screen, mainly look at the following aspects.
First,Rotary shaft shower screen structure selection
At present, the common rotary shaft shower screens on the market mainly come in three forms: framed, semi-frameless, and frameless. When choosing, you need to understand the difference in the structure of the rotary shaft shower screen, and the installation functions and The composition materials are different. Generally, the framed rotary shaft shower screen is mainly made of aluminum alloy or stainless steel as the frame, while the plates are made of tempered glass and other materials. Therefore, when purchasing a rotary shaft shower screen, you must first pay attention to the effect of its waterproof strip. As for the semi-frameless rotary shaft shower screen, its frame is mainly aluminum alloy frame or stainless steel frame. The plates are also mainly tempered glass, so you must pay attention to material issues when selecting. The frameless rotary shaft shower screen is mainly composed of hinges, fixed clips and tempered glass. Therefore, when purchasing, pay attention to the quality of the components.
2. Glass material selection
Although the styles of the rotary shaft shower screen are different, no matter which rotary shaft shower screen you choose, you need to pay attention to the choice of glass material. Generally, it is not suitable to choose too thick type. The heat transfer on the surface of too thick glass material is relatively slow. If the temperature difference between the two sides is large, the tempered glass will burst. Therefore, you need to pay attention to the glass material during the purchase process.
Three, surface process selection
For the purchase of the rotary shaft shower screen, it is also necessary to pay attention to its surface technology. Each rotary shaft shower screen product undergoes special processing when being manufactured, so that the surface of the frame metal has a good density and gloss. If the compactness is poor, the rotary shaft shower screen frame may be oxidized after being used for a period of time, reducing its service life.
Four, size selection
Rotary shaft shower screen also has certain specifications and sizes, so before purchasing, you must first determine the size of the bathroom in the family, and then choose the appropriate specifications of the rotary shaft shower screen for installation. If the size is not appropriate, it will affect the overall use effect.
rfid electronic tag is very common in our lives. RFID is similar to barcode scanning, but RFID uses a special RFID reader and rfid electronic tag that can be attached to the target. The frequency signal is used to transmit information from the rfid electronic tag to RFID reader. If the rfid electronic tag fails, scanning and application will not be possible. Under what circumstances will the rfid electronic tag fail?
There are three cases of RFID tag failure:
The first case: the label is damaged
rfid electronic tag has a chip, if the chip is pressed by external force or high static electricity may fail. Antenna, if the RFID signal receives the antenna damage will also cause failure. Therefore, the rfid electronic tag cannot be damaged or torn off by pressure. Generally, rfid electronic tags with high requirements will be packed in plastic cards to avoid damage from external forces.
The second case: the label is not damaged
rfid electronic tag cannot penetrate metal, so metal can be shielded. It is difficult to penetrate water, water can absorb waves, and the sensing distance is limited. When covered, RFID can penetrate non-metal or non-transparent materials such as paper, wood, and plastic, and can perform penetrating communication. The barcode scanner must be at a close distance and no object blocking the situation before it can read the barcode.
The third case: the reading distance is too far
In the actual high-frequency rfid electronic tag application, we need to focus on the placement of the 13.56MHz rfid electronic tag. Due to the large size of the tag and the limited space allowed, the rfid electronic tag needs to be directly attached to the metal. On the surface or close to metal devices, such as 13.56MHz RFID smart tags used in mobile phones, due to space issues, they are often directly integrated on the aluminum alloy stamping shell of the battery. In this way, in the identification process, rfid electronic tag It is susceptible to the eddy current interference of the aluminum alloy metal stamping shell of the battery, which causes the actual effective reading distance of the RFID tag to be greatly shortened or no response at all, and the reading fails completely. Practice has proved that this type of interference problem occurs frequently, and we need to take certain measures to prevent it.
Under what circumstances will rfid electronic tag fail? Just share it here. When we use rfid electronic tag, we must avoid the above situations. Only in this way can we try to avoid rfid electronic tag failure.
Vacuum glass is to seal two flat glasses with a gap between them, and use a vacuum cleaner to seal the exhaust hole. The inner surface of the two pieces of glass is coated with one or two layers of transparent low-emissivity film. Insulating Glass is not actually empty. , There is gas between the two layers of glass. In most cases, the gas is actually air, and the better quality is argon. Because the gas cannot be seen with the naked eye, it is said to be "empty". The empty glass draws a "vacuum" between two layers of glass. Basically, it can be said that there is no gas, but it is actually empty. Finally, what is the difference between Insulating Glass and Vacuum Glass?
Vacuum glass has better performance than Insulating Glass. Vacuum glass has extraordinary thermal insulation properties. Using it as window glass can quickly warm the room in winter and prevent the loss of indoor heating, thereby reducing heating and air conditioning costs and saving energy. Air conditioning is used indoors in summer, and it is not easy to escape. The sound insulation performance is good, which can prevent noise interference and create a quiet environment. In addition, in winter, even if the outdoor temperature is very low, it is difficult to condense on the indoor side of the window glass, thereby ensuring a clear view and no need to clean the condensed glass frequently.
Another feature of vacuum glass is that it is much thinner than Insulating Glass, which can save installation space and window frame materials. At the same time, due to its good thermal insulation properties, its anti-condensation and anti-fog properties are also very good, which can avoid invisible outdoor scenery and window sill dew and other annoying things. In winter, it can reduce the cold feeling in front of the windows and the wind feeling on the surface under your feet.
The wind pressure resistance of vacuum glass is about twice that of Insulating Glass made of the same glass, but the impact strength is not as good as Insulating Glass. This weakness can be solved by combining vacuum glass. For example, where needed, laminated glass technology can be used to add clear tempered glass to one or both sides of the vacuum glass to form a safety vacuum glass with high impact resistance and wind pressure resistance. Undoubtedly, this fee will increase accordingly.
Insiders know that the production process of vacuum glass is more complicated than that of Insulating Glass, and the raw materials are more expensive. The current production scale is small, so the price of vacuum glass is more expensive than Insulating Glass. The industry believes that with the changes in decoration trends, glass has indeed been widely used and production technology has been greatly improved. However, compared with other decorative materials, both types of glass are more expensive, and the appropriate amount can be selected according to the decoration needs. In home decoration, hollow and vacuum glass can be used for balconies, doors and windows to play a role in heat insulation, sound insulation and warmth.