Compared with traditional barcode technology, RFID tags can save more time, manpower and material resources, reduce production costs, and improve work efficiency.
1. Quick scan. The RFID reader can identify and read several RFID tags at the same time!
2. Small size and diversified shapes. RFID is not limited by size and shape in reading, and does not need to match the fixed size and printing quality of the paper for reading accuracy. In addition, RFID tags can be miniaturized and developed in various forms to be applied to different products.
3. Anti-pollution ability and durability. The carrier of traditional bar codes is paper, so it is easy to be contaminated, but RFID has strong resistance to water, oil and chemicals. In addition, because the barcode is attached to the plastic bag or the outer packaging carton, it is particularly vulnerable to breakage; RFID tag is to store the data in the chip, so it can be protected from contamination.
4. Can be reused. Nowadays, the barcode cannot be changed after it is printed, and the RFID tag can repeatedly add, modify, and delete the data stored in the RFID tag to facilitate the update of information.
5. Penetrating and barrier-free reading. 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 can read the barcode only when it is close and there is no obstruction.
6. Large data memory capacity. The capacity of a one-dimensional barcode is 50Bytes, the capacity of a two-dimensional barcode can store 2 to 3000 characters, and the capacity of an RFID is MegaBytes. With the development of memory carriers, the data capacity is also expanding. In the future, the amount of data that items need to carry will become larger and larger, and the demand for the expansion of the capacity of the label will also increase accordingly.
7. Stability. Since RFID carries electronic information, its data content can be protected by a password, so that its content is not easy to be forged and altered.
RFID has attracted attention due to its long-distance reading and high storage capacity. It can not only help an enterprise greatly improve the efficiency of goods and information management, but also connect sales companies and manufacturing companies to more accurately receive feedback information, control demand information, and optimize the entire supply chain.
PVC is polyvinyl chloride, and other components are added to the PVC pipe to enhance its heat resistance, toughness, ductility, etc. The top layer of this surface film is lacquer, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. It is currently the most popular, popular and widely used synthetic material. Its global usage ranks second among various synthetic materials.
PVC pipe is made of polyvinyl chloride resin, stabilizer, lubricant, etc., and then extruded by hot pressing. It is the first plastic pipe to be developed and applied. PVC-U pipe has strong corrosion resistance, easy bonding, low price, and hard texture. However, due to the exudation of PVC-U monomer and additives, it is only suitable for water supply systems whose output temperature does not exceed 45°. Plastic pipes are used to output drinking water, waste water, chemicals, heating fluid and cooling fluid, food, ultra-pure liquid, mud, gas, compressed air and vacuum system applications.
Identification method of PVC pipe:
First of all, the surface finish and whiteness of the PVC pipe; then take the sample to test, the ones that are easy to break are usually high-calcium products, of course, they must meet the requirements, and the price is right; then take the sample to step on the edge of the pipe, See if it can be cracked, or the elongation at break after cracking; whether it is good in weather resistance. The most direct way is to store the PVC pipe in a high-temperature and high-gloss place for a few days, and then look at its surface change rate, but this is a waste of time.
Application of PVC pipes:
The essence of PVC pipe is a kind of vacuum blister film, which is used for the surface packaging of various panels, so it is also called decorative film and adhesive film, which is widely used in building materials, packaging, medicine and many other industries.
1. Soy sauce
The word "pumping" in light soy sauce means extraction, which is prepared by pretreatment, koji making, fermentation, oil extraction and heating with soybeans, wheat, salt, etc. as the main raw materials. The light soy sauce is reddish-brown, salty and fresh, with a strong black bean flavor. Because of its light color, it is often used for seasoning. It is a good partner for home-style stir-fries or cold dishes.
2. Soaked
The dark soy sauce is the "sublimation version" of the light soy sauce. On the basis of the light soy sauce, caramel is added. The thick soy sauce made by a special process is brown and dark in color, which can add color to meat foods. An ideal helper for the color and flavor of aromatic dishes. The dark soy sauce is salty and slightly sweet, with a strong flavor, especially when making braised dishes, braised or braised, adding dark soy sauce to enhance the color and freshness. It should be noted that when cooking, to make the dishes look "good-looking", you need to put in the dark soy sauce early, but not too early, otherwise it will reduce the nutritional value of the dark soy sauce, so you must grasp the "degree".
3. Ordinary soy sauce. The brewing process of ordinary soy sauce is similar to that of light soy sauce, which is the common soy sauce in most parts of the north. Because the northerners have a heavier taste, ordinary soy sauce is heavier in color than light soy sauce, has a saltier taste, and has a richer flavor, but it is slightly inferior to soy sauce. Therefore, ordinary soy sauce is between soy sauce and soy sauce A kind of comprehensive soy sauce between. It is suitable for cooking, stewing and frying various northern dishes.
4. Steamed fish soy sauce
Steamed fish soy sauce is a kind of soy sauce usually used to steam fish. It uses light soy sauce as the raw material, and then adds soy sauce, rock sugar, Huadiao wine and other seasonings to boil it, so it tastes better than ordinary soy sauce. The taste is delicious and sweet, and it is more suitable to match with seafood, light river dishes and Cantonese rice rolls, which has a good freshness effect.
5. Soy sauce paste
The soy sauce paste is made from ordinary brewed soy sauce, added with salt, yellow sugar, pepper and other seasonings, and processed by drying. Because it contains a certain amount of starchy ingredients,
It is thick and creamy, mostly brown-black in color, similar to oyster sauce. It is suitable for braised and stir-fried dishes, and can also be used directly with food as a dipping sauce.
6. Japanese soy sauce
Japanese soy sauce is mostly fermented and brewed from soybeans and wheat. It does not contain additives such as caramel, but contains a small amount of alcohol. Therefore, it has a unique taste. Compared with ordinary soy sauce, the taste is quite different. It is "exotic". "The best "partner" for dishes, such as Korean laver rice, bibimbap, etc.
PVC electrical tape can directly contact wires. PVC electrical tape is used for 380v wires. Normally, the electrical tape used in single-phase tape is 220V. In fact, each pair of 380V wires is also 220V. PVC electrical tape is divided into high pressure tape and low pressure tape. And distinguish waterproof tape and ordinary tape.
How to use PVC electrical tape?
Before the thread is disconnected, the thread should be pressed lightly with the wire pliers, and then wound to the mouth, and then swing left and right, and then the thread will be smoothly disconnected at the joint. If the joint is in a dry place, it should be wrapped in two layers of insulating black cloth, then two layers of plastic tape (also called PVC adhesive tape), and then two or three layers of insulating self-adhesive tape stretched by about 200%. Two layers of plastic tape. Because if the plastic tape is used directly, there are more certainties: the plastic tape is prone to dislocation of the raw rubber and the time of the glue opening for a long time. When the electrical load is heavy, the joint will generate heat, and the plastic electrical tape is easy to melt and shrink. The power connectors are pressed against each other in the junction box. When the connectors have burrs, it is easy to puncture the plastic tape. These hidden dangers directly endanger personal safety, cause short circuits or find abnormalities, and cause fires.
However, the above situation will not occur with the use of PVC electrical tape. Because it has a certain strength and flexibility, it can be tightly wrapped around the joint for a long time, and it will be dry and fixed under the influence of time and temperature, will not fall off, and it is flame-retardant. In addition, the use of insulating black tape and then tape can have the characteristics of moisture-proof and rust-proof.
Therefore, learn how to use PVC electrical tape and use it correctly to prevent leakage and reduce harm.
The nut packaging machine is one of the indispensable equipment to complete the production of bag packaging. It is widely used in the packaging market and is an automated equipment for quantitative packaging of granular materials. For example: melon seeds, peanuts, nuts, and other granular, flake, strip, irregular shaped materials are quantitatively weighed, counted and packaged.
The nut packaging machine can not only adjust any parameters without stopping the machine, but also can store ten sets of parameters, and the accuracy of changing varieties is high.
It is a mechanical product integrating automatic quantitative feeding, bag making and bagging. Its body is designed with stainless steel, it will not pollute the material when it comes in contact with the material, and it can automatically complete all processes such as quantitative blanking, bag making, filling, counting, sealing, slitting, output of finished products, labeling, printing, etc. jobs. It adopts a modular design and is extremely versatile. It can achieve the purpose of one machine with multiple functions by using different metering devices.
Main features of nut packing machine:
1. The contact part of the nut packaging machine with the material is made of high-quality 304 stainless steel, with a touch screen display, and its operation is intuitive and simple.
2. The PLC computer control system is adopted, and the operation is more stable. Not only can any parameter be adjusted without stopping the machine, but also ten groups of parameters can be stored, and the accuracy of changing the variety is high.
3. The nut packaging machine is controlled by three servo motors, and the film pulling speed is not only faster but more accurate.
3. The packaging styles are diversified, such as back seal, gusset, continuous bag, punching, etc.
5. The nut packaging machine adopts an intelligent two-way temperature controller, which can be well applied to various packaging materials such as composite film, PE film, etc., so as to ensure that the horizontal and vertical seals are more beautiful and smooth.
6. The processes of bag making, sealing, packaging and date printing can be completed at one time.