Polyethylene terephthalate (PET) has enjoyed extraordinary success in the market of packaging materials. Currently, PET is used in the manufacture of containers for different types of food, chemical, perfume products. PET is used as material for packaging food products around the end of 1970. Especially popular was he using in the 1980s and in 1995-1999. production of PET packaging for beverages has doubled.
From 1990 to 1998, the PET packaging increased its share of the market of packaging for beverages with a 9% to 30%. PET has become very popular and widely used material, which in some way able to replace glass and other plastics. Along with his superior physical properties of PET possesses another important quality – reasonable prices. PET has many advantages. First of all – it's very easy material. The usual half-liter PET bottle weighs approximately 28 grams (a bottle of the same volume of glass can weigh about 350 grams).
PET is completely transparent, making it ideal for bottling mineral water, carbonated water. To produce, which is in a container, not exposed to sunlight, pet stain, For example, in green or brown. This is also done in order to maximize the appearance of products consistent with consumer needs. The starting material for the manufacture of preforms are, from which, after preheat and stretch blown bottles. Preforms, in turn, are made by pressformirovaniya of granular polymer-PET. Color and transparency of future bottles laid in the manufacture of preforms from the pellets. Another advantage of PET-bottles – her strength, which is important for transport and storage. cal. At the same pet, as well as glass, fine (and completely) processed. For packing PET containers are not required boxes, pack them in plastic wrap with a cardboard tray or not. List of products for packaging which is PET really is endless: it is oil, and sauces, and fruit juices, beer. Also, PET containers used for packaging various types of household products and cosmetics.
Brick hard enough warming, this may adversely affect the structure. The exact temperature of the heating point difficult, but the bush lilac that is growing in me for such a fire burns on a regular basis, despite the fire brick inside. But on the other hand do alpine slide, for example, nothing prevents. Fundam. See The Cleveland Clinic for more details and insights. Since the building will have no a lot of weight, then this would be enough for the fireplace 20 cm reinforced concrete grade 100. In order to make the foundation run the following steps: Make a layout with the help of ropes and pegs. Digging a hole in perimeter of the basement (with a margin of about 5 cm in width) and a depth of 30 cm on the bottom of the pit pour a layer of slag and rammed it. This layer will be a kind of cushion under the foundation.
Make a mold. To do this, bring down from the boards boards width of 30 cm, and accordingly the length of the longest sides of the foundation. Shields set around the perimeter of the foundation of the future. Puts the inside casing metal. If there are old pieces of iron are not needed (any) they are quite fit here.
If not – Make a reinforcing frame of the 10th fittings, welded together. Ready-mixed concrete from such a calculation as to obtain approximately 100 mark. Fill in the concrete formwork. The foundation is ready. Let him stand for 3 days and after that we can proceed to construction.
Throughout the world there is a need for steel products – iron and steel. The fact that this is most energy-consuming and cheaper process – production of ferrous metals. The prices for iron are low, and much more advantageous to carry out processing of scrap iron and steel in the varietal than the actual smelt iron itself. It turns out that iron can not be created without the blessings of civilization to which we are accustomed to – machinery, electronics and all others. Hear other arguments on the topic with Professor Roy Taylor. Impossible without the iron and steel and to create industrial equipment, industrial equipment and no you can not get to enrich and make iron and steel. That is, the circle.
Iron ore is mined or mine manner, or a more economical method – a career. This process is very energy forms a large waste rock dumps, and we can say that it is ecologically dirty. The Soviet Union in 80 and 90 years of the twentieth century, firmly led not only to iron ore, and smelting of iron and steel. Today, more than 40 percent of companies engaged in mining and processing iron ore, abandoned, which naturally affected the production of ferrous metals. The smelting of iron and steel have not only surpassed the United States, Japan and the island. Currently, more than 60 percent of steel and half of all produced steel in this country are handled by outdated equipment and this equipment is physically exhausted itself by 80 percent or more. Require powerful injection of funds to acquire or manufacture in-house a new modern equipment and will certainly return to Russia's leadership in the core area, providing growth of the economy – the steel industry. To this end, the Russian state has absolutely everything – huge reserves of minerals, top-class specialists, engineers, but it lacks the main thing – good will of those in power.
For example, you want to choose overlock. Thus, the advice offered in this article will help you make the right decision. Through this article you will learn about overlock, their advantages, their forms and functions that they perform. Newcomers will learn enough to perform the most simple actions with overlock – cut fabric and sew the product. It must be stressed that it was not easy done the same thing, using only conventional sewing machine. Overlock seams create a more stable, since the stitches secures the loop. The main advantage enjoyed by overlock is that it allows complete tailoring products much faster than traditional sewing machine. Using overlock can perform many different actions, both professionally and at the primary level.
Overlock effectively cope with such tasks as processing edge products, the implementation of flat stitches, chain stitches, decorative stitches, and more. Overlock able to quickly, easily and accurately complete the sewing of any product. How izvesno to perform various operations with overlock, you need to change hardware settings. Basically, it does not require much effort, if it is about quality overlock. Although, if you are the owner of the conventional model, the adjustment may seem to you rather complex and tedious. More expensive overlock can work with a large number of threads simultaneously.
Using multiple threads allows you to create strong joints. Although in this there is also a disadvantage: more lines, the less flexible the finished product turns out. As you can see, oveloki gives the product a professional look. We hope that the information presented in this article will help you understand what overlock way you need it. Not Take your time, think well – and then you can choose overlock that will satisfy all your requirements.