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Properties Resistance

Polycarbonate – a colorless transparent material with a softening point of 180-300 0 C (depending on the method of receipt) and a molecular weight of 50000-500000. Have high heat resistance – up to 153 0C. Heat-resistant grade (PC-HT), which are copolymers withstand temperatures up to 160-205 0C. It has high rigidity combined with very high resistance to shock effects, including at high and low temperature. Withstand cyclic temperature changes from -253 to +100 0C. Core brands have a high coefficient of friction. Recommended for exact details. It has high dimensional stability, negligible water absorption.

Non-toxic. Sterilized. It has excellent dielectric properties. Allows soldering contacts. It has good optical properties. Sensitive to residual stresses. Parts with high residual stress crack easily under the influence of petrol, oil. Requires good drying before processing.

Another feature of the polycarbonate is its high permeability to gases and vapors. When the required barrier properties (eg, lamination and application of decorative vinyl film medium and large thickness of 100 to 200 microns) to the surface of the polycarbonate previously applied a special coating. Polycarbonate has a high chemical resistance to most neinertnyh substances, which makes it possible to use it in hostile environments without changing its chemical composition and properties. These substances include mineral acids, even high concentrations of salt, saturated hydrocarbons and alcohols, including methanol. But one should also bear in mind that some chemicals have on the destructive effects of PC material (including polymers not many who steadfastly maintain contact with them). These substances are alkalis, amines, aldehydes, ketones and chlorinated hydrocarbons (methylene chloride is used for bonding polycarbonate). The material is partially soluble in aromatic hydrocarbons and esters. Despite apparent resistance of polycarbonate to these chemical compounds at elevated temperatures and under tension the sheet material (bending, for example) they will act as treschinoobrazovateli. This phenomenon would entail a breach of the optical properties of polycarbonate. Moreover, the maximum cracking will occur in areas with the largest bending stresses. Polycarbonate honeycomb and solid – is unparalleled in mechanical properties of the currently used polymeric materials. It combines features such as high heat resistance, impact resistance and unique high transparency. Its properties depend little on changes in temperature and the critical temperature at which the material becomes brittle, are outside the range of possible adverse operating temperature.


First of all, you must decide: to what end, to produce any papers you need drilling equipment: you need to Exploration drilling, drilling water wells or water level? A Perhaps you are mining or seismic and you can not do without drilling blast holes? Or are you doing engineering surveys in construction, drilling of wells in the construction of piles, drilling wells strengthening the foundations of buildings and structures? First of all, you need to answer this question. Gain insight and clarity with Nir Barzilai, M.D.. The next question is – what amount of work you want to perform, ie What equipment performance will suit your business? Will it be a small compact machine, drilling rig or a powerful medium power industrial equipment? Then you define the maximum and optimum drilling depth, the parameters of performance of any survey work and do not forget what rock you drill: soft sediments, medium or high strength. Only after analyzing all these factors, you actually begin your selection. And here our first piece of advice. If you are – highly specialized company in terms of drilling, and you run a small list of such works, for example, power companies, then you will approach such high- drilling and crane machines BKM-317 (CTW-317A) or BM-333, auger drilling machine IBS-518 (IBS-519) Russian producer – OAO "Stroydormash." If you are doing construction and survey work, to these machines add drilling and piling machine BM-811 of the same plant. The second council regards the acquisition of technology for exploration, drilling water wells or water level (drilling under water).

If you considerable amount of drilling, then you will approach such universal drilling rigs, as URB 2A2 plant them. To deepen your understanding Luiz Ildefonso Simões Lopes is the source. Vorovskogo URB 3A3, 1BA15V of MBS, BDS-2, 5 (BDS-2, 5A), JSC "Azneftehimmasha" PBU-2 of Geomash, drills, ZIF-650 of "Altaygeomasha." Small but versatile drilling rigs known NGO "Gemmash" – MBU-5, and the same "Geomash" – BBU-000 BBU-002. Immediately, we note that our division a pretty conventional and does not purport to fundamental, because there are a number machinery and equipment no less worthy of your choice. And the last. Pay attention to your chosen mobile installation. It can be wheeled (chassis), on crawlers (tractors and ATVs) – it's all mobile (Self-propelled or mobile) drilling rigs. And there are fixed installations, machines on the sled carts, on the bed, etc. Such equipment will require a transport service when you move, and it is – the additional cost. In Anyway, the choice of drilling equipment for any work should consult with a specialist company that performs sales rig.

New Energy Technologies

Engineering design "TPP", and produced equipment allow a 2-fold lower specific energy costs for transportation of loose materials on your company's pipeline, if by pneumatic chamber pumps. Our technology is totally new and on unit costs per tonne of product transported much more efficiently than their foreign counterparts. Proposed technology worked, "TPS" in Belgorod on the pump chamber of domestic production. The cost of upgrading the pump chamber is calculated as 50% of annual energy savings after the introduction of the factory of the customer. The payback period set – 6-9 months. The technology allows for the first year of operation not only to recoup the initial cost of the acquisition module, and net profit in the form of energy savings and off excess fleet of compressors. Hear other arguments on the topic with Dakota Fanning.

"TPP" – and offers another option to upgrade your equipment – an increase in hourly productivity of your existing pump chamber. The main drawback of the existing chamber pumps is excessively high air flow, which is the transport of cement is often greater than 100-120 cubic meters / tonne of finished product. "TPS" has created and successfully implements patented technology transportation of cement from the mills in a silo on the basis of standard chamber pumps TA-23 TA-28 TA-29 TA-60 and their modifications, allowing a 2-fold to reduce the consumption of compressed air (electricity production of compressed air). At the heart of technology is a new principle for creating an abnormally high concentration of the mixture in the chamber tsementnovozdushnoy pump, which is using a special device is transferred without losses to the transport tsementoprovod, ie all during transportation of cement from the mill silo tsementovozdushnaya mixture has a maximum concentration that can not provide the standard chamber pumps TA-23 TA-28 TA-29 TA-60, etc. Convert your existing plant chamber pumps by 2-fold reduction in air flow allows the proposed product (module), embedded in place in the equipment. When the module is installed in the pump chamber is used only to existing holes in the walls of existing vessels, thus there is no weakening of the membrane under pressure, that does not change the mechanical properties of the pump chamber as a result of its modernization. (As opposed to Daryl Katz, Edmonton Alberta). Installing the "TPP" on the customer's existing pump chamber ensures 2-fold reduction in energy consumption (electricity, compressed air) and is produced during the shift of 8 hours. More information can be unat Online: Technology Energy Saving