Archive for January, 2012

Interesting Information About Engineering

January 31st, 2012
Comments Off on Interesting Information About Engineering

Interesting information about the engineering of hot pipes, I'll give you everything I know about boiler tubes ARCs. Starting from the concepts, especially those derived varieties and finished tubes. I also talk about the concept of hot-tube and some information about the firm realizes the pipe. This article will tell you more about one of the plants and the various engineering proivzoditeley pipes – about texnomet What pipe? As I said wikipedia pipe – this is a cylindrical body with a different profile in cross section (there are profilyne and round tube) and in the middle. Typically the pipe is much more l and its radius. This feature is caused by appointment of various pipes.

. Their methods of preparation produce pipes ARCs usually made of metals, their alloys, various organic matters, such as resins and plastics, and some other materials. Manufacturing technologies boiler tubes are many: a way of welding, rolling and drilling as well as centrifugal casting. More like about these methods, discuss the following: Welding is a common method, but it has drawbacks. This technology is as follows: Take a metal sheet and fold the sheet into a tube (one layer), then a special welding machine – welded sheet, make the welding seam of a spiral. Pros method is its relatively democratic costs. The negative side of the weld method is that the seam of the tube turns a vulnerability, and that it may fail in popularity is the production of quality pipes by rolling – this is one of two methods by which you may receive this type of pipes as seamless. The method of rolling material on special machines, so the hole is formed in the center.

Pros of such pipes is obvious – have a higher safety factor, such products are often installed on the most difficult places in which leakage can not be allowed, such as gas and oil industry balloons. Sorry, but this method – is very expensive upon receipt of metal pipes and it is mainly for softer materials such as plastics. following the method of creating seamless pipe ARC – casting methods. In two ways: casting material in the form of a rod inside and after cooling in the middle of the hole is obtained by casting or centrifugal force. Casting in the form of less expensive, compared with the centrifugal, but the second method, the metal fibers are arranged in a circle and the pipe has dopolnitlnuyu strength. Finally, the last final before us is drilling methods. ie in the rod drilled hole technology. In this method, a large proportion of the chip is that a drawback. For this reason, for drilling large pipes are rarely used. It is used usually for a barrel guns and hollow machine parts. Copper Plastic Pipe Polyethylene pipes of polybutene Steel if he wanted to stay on steel tubes and the main types of tubes: Seamless pipes and electric, but these types of you have already read the top paragraph, however, the first pipe are hot and cold deformation, it is beyond repair: hot tube to deform at higher than the recrystallization temperature. These tubes are obtained by means of rolling. They are made of steel different brands, such as 20, 45, 10G2, 20X, 40X, GOST 8732-78, etc. .. mat pipes are also cold, but at a temperature below the required minimum. There boiler tubes Another thick-walled pipes are divided and walled. Thick-walled pipes in locations where the pressure is higher than usual. The use of pipes, the pipes in the industry, water supply, mechanical engineering. The largest is the oil industry.

Uncategorized ,

GOST Foundation

January 24th, 2012
Comments Off on GOST Foundation

The advantages of a screw base (foundation on screw piles) Description of screw piles Calculating the number of screw piles for the foundations of comparison process unit concrete ribbon foundation and the foundation of the process device on screw piles European engineering systems Ground Screws (screw piles for the foundation) for the following types of buildings and structures: at home from a bar, home of the logs (in the including rounded); home on frame technology (metal or wooden frames) at home on SIP (SIP) technology, at home in a body-modular technology, home of the AAC, spas, country houses, gazebos, Screw piles as may be used during the implementation of landscape design. Screw pile (pillar) – is a steel pipe with welded on its blade specific configuration. The configuration of the blade is designed in such a way – not to loosen – On the contrary – compact intervals interturn soil. In this effort 2-3 working enough for screwing the pile. The pile has a zinc coating termodiffuzinnoe NeoTsINK (GOST 51163-98), whose life – at least 50 years. Screw have an enormous pile bearing capacity in compression as well as to pull the load.

Screw piles resist the forces of frost heave. Screw piles are suitable for all soils except rock. Screw piles should be used as anchors and foundations in soft soils watered. Delivery time is 3-14 screw piles days after payment. The term of the installation of screw base – 1-3 days. The advantages of helical foundation (foundation piles on screw) Advantages of screw piles for the foundation: Screw fudament – the most cost-effective solution compared to tape the foundation or foundations on f / c units, factory warranty quality and durability (70 – 100 years) screw piles at low cost (only for driving coated NeoTsINK) rate of production of works on the foundation (the term installation of screw piles is from 1 to 3 working days); small amount of labor on the foundation of the device (3-4), the complete absence of "wet process", the complete lack of special equipment, no need of access roads for vehicles, does not require excavation works, works on installation of the helical foundation can be made even, on an uneven, raw stumps from the site, on a neat well-groomed lawn without damaging lawn, on the slopes, on peat soil and watered in other extreme conditions, in close proximity to large trees, work on the device screw base can be carried out even in winter, to have built on stilts screw steel structures, buildings, homes and other objects can easily attach new facilities; Advantage NeoZinc to cover driving: The process of thermal diffusion zinc coating has 100% opacity, as well as protects both exterior and interior surfaces of products, including all welds, corrosion resistance of the coating corresponds to GOST 51163-98, which is 3-5 times greater than the resistance of zinc plating, the coating extends the life of parts exposed to aggressive media – to 40 – 50 years (with a coating thickness of 70 microns) and up to 100 years (with a coating thickness of 100 microns), increased durability and abrasion resistance, excellent weldability – zinc does not burned outside the welding seam, do not worsen working conditions and quality of welding, diffusion-galvanized products are easy to transport without damage to the coating, retains its strength and hardness of parts, there is no leave the metal and its hydrogen embrittlement.