The product manager of Ingersoll Cutting Tools, Rockford, Ill., USA, gave a solution to this situation: using carbide only in the tip. These tools offer an economical compromise between high speed steel knives and solid carbide tools. The savings in raw materials for this type of solution are unquestionable, but this approach has a fatal flaw: these replaceable tool tip "plug-in" tools, which add up to the cost of the manufacturing process and the savings in raw materials. Moreover, this tool changes the principle of insert-type carbide tools to make them smaller-edge tools, which are often not candidates for the best interchangeable blades. So-called “plug-in†tools that have been saved by complex processes have not actually improved tool performance significantly, and this process is generally used in PCBN tools or PCD tools, along with domestic PCBN and PCD manufacturing techniques. Progress, the prices of these two materials have been falling. Based on this thinking, the sharp increase in tungsten prices is more powerful for PCBN and PCD tools, which will speed up the replacement of cemented carbide tools by the two tools. The overall improvement will have a huge impetus (the use of PCBN or PCD tools, post-processing precision, etc. will have an overall improvement, and there will be invisible help for the entire industrial base upgrade.
Food Additives Refers to the production of food by the food manufacturer in the process of adding some chemicals, used to change the color of food, smell, or adjust the food taste and prolong the preservation time (preservatives, antioxidants), but some will Leading to cancer, such as many of the meat material added by some of the substances in the stomach due to protein, stomach acid, additives generated by the interaction of nitrite, can lead to physiological and chronic lesions. These chemicals are known as food additives.
main effect
Food additives have greatly contributed to the development of the food industry, and known as the soul of the modern food industry, which is mainly to the food industry to bring many benefits, its main role is as follows:
1. Preserving to prevent deterioration such as: preservatives can prevent food spoilage caused by microorganisms, extend the shelf life of food, but also have to prevent the pollution caused by microbial poisoning. Another example: antioxidants can prevent or delay the oxidation of food deterioration, to provide food stability and resistance to storage, but also to prevent the possible harmful oil automatic oxidation of the formation. In addition, can also be used to prevent food, especially fruits, vegetables, enzymatic browning and non-enzymatic browning. These are the preservation of food is of a certain significance.
2. Improving the sensory properties of food The color, smell, taste, shape and texture of food are important indicators of food quality. Appropriate use of colorants, colorants, bleach, edible spices and emulsifiers, thickeners and other food additives, can significantly improve the sensory quality of food to meet people's different needs.
3. Maintain or improve the nutritional value of food in food processing properly add some of the natural nutritional range of food nutrition enhancer, can greatly improve the nutritional value of food, which prevent malnutrition and nutritional deficiencies, promote nutritional balance, improve People's health level is of great significance.
4. Increased variety and convenience of food The market now has as many as 20,000 kinds of food for consumers to choose, although most of these food production through a certain packaging and different processing methods, but in the production process, some color , Fragrant, taste with the whole product, mostly to varying degrees to add the coloring, aroma, seasoning and even other food additives. It is these a lot of food, especially the convenience of food supply, to people's lives and work to bring great convenience.
Now commonly used food pigments include two categories: natural pigments and synthetic pigments. Natural pigments come from natural, mainly extracted from plant tissue, and also include some pigments from animals and microbes. Synthetic pigment refers to the use of artificial chemical synthesis of organic pigment, mainly in coal tar separated from the aniline dye made of raw materials. In the course of a long period of Food Additive reporting process, because people do not recognize the harm of synthetic pigments, and synthetic pigments and natural pigments compared with bright color, strong coloring, stable nature and cheap, many countries in the The food processing industry generally uses synthetic pigments. With the development of society and the improvement of people's living standards, more and more people in the use of synthetic food in the food will not cause harm to human health questioned. At the same time, a large number of research reports that almost all of the synthetic pigment can not provide nutrients to the human body, some synthetic pigment and even endanger human health. Eat a fine snack, fast food lunch, fragrant hot dog, glance at the printing of exquisite packaging food on the nutritional table, you will find that each food has additive ingredients. It is understood that the conversion of fat, refined cereal products, salt, high fructose syrup four components in the processing of food is the most common, these ingredients harm the human health. Some if there are too much harm, such as: citric acid, aspartame, sodium Finland white pigment, vanillin, potassium ... basically no harm, as long as it is added But not excessive
Additives
Food Additive,Food Grade Glycine,Food Additive Ethyl Maltol,Nutrition Enhancers
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