Digital densitometers are used to quickly determine the concentration or refractive index of sugar-containing solutions as well as other non-sugar solutions. Widely used in sugar, food, beverage and other industrial sectors and agricultural production and research. Applicable to the concentration measurement of soy sauce, ketchup and other sauces (seasoning) products; applicable to the measurement of sugar content of jams, sugar syrups and other sugar-containing products; applicable to the production line of juices, refreshing beverages and carbonated beverages, Quality management, pre-delivery inspection, etc.; applicable to the process from fruit planting to sale, it can be applied to determine the exact harvest time, for sweetness classification classification. In addition, the determination of the concentration of the slurry in the textile industry has also gained widespread application.
The design principle of the calorimeter is that when light enters from one medium to another medium, refraction occurs, and the ratio of the sine of the incident angle is constant, and this ratio is called the refractive index. The content of soluble solids in fruits and vegetables juice is proportional to the refractive index under certain conditions (the same temperature and pressure). Therefore, the refractive index of fruit and vegetable juices can be determined to determine the concentration of fruit and vegetable juices (the amount of sugar). Commonly used instruments are hand-held refractometers, also known as sugar mirrors, hand held sugar meters, through the determination of soluble solids content of fruits and vegetables (sugar content), can understand the quality of fruits and vegetables, about the estimated fruit maturity. The hand-held sugar tester is generally cylindrical. Put the sugar liquid to be tested into the openable trough, wipe it evenly, close the lid, and then look at the glucometer in front of the light to see the reading.
　　 The difference between digital sugar meter and hand-held refractometer:
First, the number of sugar meter:
A digital sugar meter is used to conveniently and quickly determine the weight percentage or refractive index in a sugar-containing solution. Widely used in sugar, food, beverage and other industrial sectors and agricultural production and research.
How it works: The use of light from one medium to another medium produces a refraction phenomenon, and the ratio of the sine of the incident angle is constant. This ratio is known as the refractive index. The content of soluble substance in the sugar solution and the refractive index are proportional to the ordinary environment, and the refractive index of the sugar solution can be determined, so that the sugar meter/refractometer can calculate the concentration of sugar.
Second, handheld refractometer
Hand-held refractometers are instruments that measure the refractive index nD and average dispersion nF-nC of transparent, translucent liquids or solids (of which transparent liquids are predominant). If the thermostat is connected to the instrument, the refractive index ND within the range of 0 to 70 can be measured. The refractive index and the average dispersion are one of the important optical constants of a substance, and can be used to understand the optical properties, purity, concentration, and dispersion size of the substance. Because hand-held refractometer instruments can measure the concentration of sugar content in sucrose solution, hand-held refractometers have a wide range of applications. They are the petroleum industry, the oil industry, the paint industry, the food industry, the daily chemical industry, and the sugar industry. One of the indispensable common equipments for industrial and geological surveys, such as factory schools and research institutes.
The main function of the edge banding is to seal the cross-section of the board, so as to avoid the damage of the board and the adverse factors (mainly moisture) in the process of use and prevent the formaldehyde inside the board from volatilizing, and at the same time achieve the effect of beautiful decoration.
The product has the following main features: smooth surface, no blistering, no ribbing, moderate gloss, smooth surface and back surface, uniform thickness, uniform width, reasonable hardness, high elasticity, good quality, strong wear resistance, trimmed and sealed The color of the side and the side is close to the surface color, not whitish, good gloss, and the overall color of the finished furniture is coordinated.
Judge good or bad
1. Look at the hue and surface roughness of the edge banding strip. The color of the surface of a good edge banding strip is also very important. Whether the color is close to the customized product and is gorgeous. If the surface is very rough and there are pull marks, the quality is definitely not much better. This is the surface quality of the edge banding strip. It has nothing to do with the quality of the inner material of the edge banding, mainly the production process of the edge banding factory and the production technical skills of the employees. A good edge banding strip is: the surface must be smooth, no blistering or seldom bubbling, no drawing or few drawing, moderate gloss, not too shiny or too matte (unless there are special requirements).
2. Check the flatness of the surface and bottom of the edge banding and whether the thickness is uniform, otherwise it will cause the joint between the edge band and the board, the glue line is too eye-catching or the gap between the board and the edge band is too large, which will affect the overall beauty. Details determine success or failure, and often a small detail problem may bring an embarrassing situation where the overall effect is not good.
3. Whether the edge trimming is whitish, whether the surface of the bent edge strip is severely whitish, and whether the ground color of the trimming strip is close to the surface color of the board in question. PVC Edge Banding strips are mainly made of PVC and Calcium Carbonate plus additives. If the calcium carbonate content is too high, whitening of the edge banding and bending will occur, which proves that the quality of such products is not good.
4. Whether the strength is okay and whether there is elasticity. High strength means good wear resistance, and the corresponding quality is better. Too high strength also means increased processing difficulty. Low elasticity means low wear resistance and low aging resistance. In addition, according to actual production needs, manual trimming is generally required, and soft spots can be made appropriately, and the automatic edge banding machine can make hard points appropriately.
5. Whether the adhesive is applied evenly and whether it is easy to fall off during use.
6. Smell whether the PVC edge banding strips taste or not. Products produced with good quality raw materials generally have a small taste. If the taste is too large, it means that the quality of the raw materials used in production is relatively poor.
PVC Edge Banding For Cabinet,Pvc Edge Banding,Banding For Cabinet,T Shape Pvc Edge Banding For Kitchen Cabinet
Henan Shunbang Chemical Industry CO.,Ltd , https://www.spvcresin.com