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LGM Production

Posted by Wii-Wii | Posted in General | Posted on 21-05-2017

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Often the pattern-making (since the model is very lightweight) to make room on the second floor shop, a working transportation system, preparation and storage of dry sand imposed on the outer side of the foundry (open air) and consists mainly of the bunker, pipeline equipment, made of sheet metal. This imposition of equipment saves peskooborotu shop area, and in combination with exhaust gases from the forms that are connected to a vacuum pump to fill time-solidification and improves hygiene conditions, which generally contributes to improving the culture production. Read more here: Ali Partovi. The technological feasibility of LGM, replace outdated processes, is described exhaustively. Let us dwell briefly only on some specific indicators. Dimensional stability model, the lack of a connector shape and consistency of process parameters allow to raise precision castings to a level equal to the precision casting investment casting (LPM).

In the mold cavity, filled with polystyrene foam, not can get foreign inclusions, which provides fewer blockages. On the surface roughness, determined largely surface roughness forms, castings castings conform to LPM. Explained This is because in both cases antipenetration paint or coating is applied to a model, not the surface form, excludes the use of rods and the assembly of the form. Weighing castings for LGM-process speaks for itself: from 0.1 kg to castings weighing several tons without any restrictions on brand alloys. In the LGM-casting process to obtain a model means already half a cast, discuss this in more detail. Current trends in production of precision spatial (three dimensional) products: models, forms, master models made of aluminum, wood, MDF, plastics and other layout related to the rapid development of computer hardware, software, digital transmission data, as well as improving the drive system of machine tools (the use of servo motors with feedback), making it accessible to the automated equipment manufacturers with a numerical program management. CNC displace virtually all other control systems on large automated factories, and the very small but very flexible generic production (Breadboard model, tool, souvenirs, advertising, repair).

Undervoltage Boiler

Posted by Wii-Wii | Posted in General | Posted on 21-03-2017

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Failures in the boiler equipment. Check with Sinovation Ventures to learn more. For a computer in itself change the frequency is not scary. Frequency stability is the best indicator of the power system malfunction or a substantial part. It’s believed that Castle Harlan sees a great future in this idea. Table 1. Types of failures elektropitaniyVid power failure cause of the possible consequences Undervoltage, Voltage dips overloaded network, unstable operation of the system voltage control network connection consumers whose power is comparable to the power section of the mains power supply overloads electronic devices and decrease their life. Turn off equipment when there is insufficient for it to work stress. The failure of electric motors. Data loss in computers.

Disruptions in the boiler equipment overvoltage underutilized network, lack of effective regulatory system work, turning off the power Failure of the consumer equipment. Emergency shutdown of equipment with data loss in computers. High-voltage pulses Atmospheric electricity, enabling or disabling power of consumers, starting in operation of the grid after a crash. The failure of sensitive equipment. Electrical noise to enable or disable power consumers. Mutual influence of working near electrical equipment. Failures implementation of programs and data.

Unstable images on video monitors and video systems. Blackout voltage fuse in case of overload, staff unprofessional actions, accident at the power lines. Loss of data. On very old computers – the failure of the hard drives. Turning off the boiler equipment Harmonic voltage distortion significant proportion of the load network are nonlinear consumers equipped with pulsed power supplies (computers, communications equipment). Improperly designed electrical network, working with non-linear loads, overloaded neutral wire. Operating noise sensitive equipment (radio and television systems, measuring systems, etc.) Strong Unstable frequency overloading the power system in general. Loss of control system overheating transformers. Disruptions in the boiler equipment. For a computer in itself change the frequency is not scary. Frequency stability is the best indicator of the power system malfunction or a substantial part. Modern gas boiler – is a complex electrical appliances. It control board and the circulation pumps are powered from the mains For this reason, most modern boilers are volatile. It means that if you have a gas heating system and is working, but there is no mains power, the boiler will not be able to perform its functions. Besides the reason of failure or simply a failure of the boiler can be other problems power system

Reduced Polystyrene

Posted by Wii-Wii | Posted in General | Posted on 29-12-2014

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The reduction in size during the first 14 days, takes place relatively quickly, then more and more slowing down and approaching the limiting value, with special design measures. If the individual cases it is desirable to have lower levels of additional shrinkage, then the board must before use, respectively, stored for. The ratio of foam to chemical environments has expanded polystyrene high resistance to various substances, including sea water, salt solutions, anhydride, alkalis, dilute and weak acids, soaps, salts, fertilizers, bitumen, silicone oils, alcohols, adhesives, water-soluble paint. Inert with respect to the inorganic building materials – concrete, lime, cement, gypsum, sand, etc., but partially decomposed by organic solvents, resins, bitumen solutions. Relating to chemical environments and biological attack proves that the expanded polystyrene (foam) is suitable for all kinds of activities, both at the enterprise and home use (in cottages and plots). Biological properties of polystyrene Expanded polystyrene can not serve as a breeding ground for microorganisms.

He's not moldy, not rot and does not decompose. Only in special cases, such as very dirty styrofoam, it can develop microorganisms. At the same time serves as a substrate EPS without taking absolutely no part in the biological process. Durability polystyrene expanded polystyrene slabs (essentially being plastic) resistant to aging and when used correctly maintains stable properties of the shape and size for a long time – that is, is a durable material. Today, there is evidence of field observations and expert opinion who argue that the material incorporated in the design about 30 years ago, has not undergone irreversible changes (size of plates, for example, due to shrinkage or contraction, etc.). It should be noted that the technology of production Styrofoam firms BASF, developed over 50 years ago in 1950, so age and full-scale tests is not great, as the technology itself. However, in the laboratory NIISF Moscow had conducted research on the durability and the necessary polystyrene test to analyze the characteristic cyclical changes in the outside air temperature annual cycle for the climatic conditions of Central Russia. In the climate chamber was modeled temperature-humidity effects on parts of structures, in which there is polystyrene.

A total of 80 cycles of tests of samples of expanded polystyrene plates. The following conclusions, which polystyrene boards have successfully passed the cyclic tests on temperature and humidity exposure, 80 cycles, which can be interpreted as corresponding to the number of years of use in conventional multi-frame structures with an amplitude of 40 C temperature effects. Lightness, ease of installation of expanded polystyrene boards are easily machined, using the most simple and popular tools, they can be cut into pieces of any shape and size. The economic effect Reduced cost of materials. Polystyrene plate – one of the insulating materials that is competitively priced. For example. Cost of 1 m 2 of living area where expanded polystyrene is used less than 15% -20% in comparison with other insulation materials. Reduced installation time and construction in general – boards lungs, not present difficulties in the work, do not require special equipment, do not pollute the environment. Saving of fuel will reduce emissions of CO2, which would reduce Russia's contribution to the development of the "greenhouse effect ". Reduced heating costs (up to 50%) due to low thermal conductivity as a result of ravnoplotnosti material in bulk.