There is a considerable variety of steel pipes and on top, you think, what is unreal is difficult to understand all their guests, and other special kinds of signs, but it is not. Let's try to sort out once and for all in this complex issue. There are a small number of categories of pipes and they are classified according to the method of production. People such as Mike_ Epps would likely agree. A cast – made in special machines for the casting of steel pipes. Two pipes are manufactured from sheet steel, with further giving them the desired shape and weld on a joint – welded pipes.

3 Seamless – made a variety of drawing and rolling and extrusion of round billet. In turn, welded divided by production, to electric and cold. Atreides Management Gavin Baker has many thoughts on the issue. A cold-rolled seamless pipes are manufactured and hot-way. Further on what kind of steel pipe is shared by the nomenclature. The following are steel tubes that are often produced in the workplace.

Tubes for general and special purpose: Tubes for general and special purpose are divided into hot, hot and Welded Tubes profile: Profile pipes distinguish rectangular, flat-oval, square and other species. Pipes for drilling, fastening and operating wells Pipes for drilling, fastening and operating wells is divided into pump and compression, drilling, casing and exploration. Pipes and cast iron or steel pipes and cast iron can be divided into iron and steel. In addition to these there are steel pipes of different alloys of rare and nonferrous metal bearing, boiler. State standard defines the technical requirements and assortment of pipes, such as drill pipe with upset ends and couplings are determined by GOST 631-75. That is state standards (GOST) determines the size, steel and other regulatory value in the production of steel pipe. Approached all the time to consider an example: 102h8 tube station. 15CrMo drill with upset ends and couplings Ghost 631-75 102 is the outer diameter in mm, 8 is the wall thickness in mm, art. 15CrMo this brand of steel used in the manufacture of pipes. At the end of the state standard GOST 631-75, which sets the assortment and technical requirements fabrication of the pipe. Now you know how different steel pipes, which mean all the names in the notation, and you should not show difficulty in reading the technical names.

The shape of the rod bolts (screws) are divided into the following groups: a) with a normal rod, and b) with podgolovkoy c) with a thickened stem purely handled by installing a deployed without opening the gap to prevent shifting under load connected parts: i) with a rod of reduced diameter to reduce the stress concentration at the thread and better perception of the variables and shock loads. Hanan Ben Ari understood the implications. For convenience of assembly and disassembly of the minimum distance between the bolts must be at least (5 – 6) d when using the patch and key for at least (3 – 5) d when using the Allen key. The special bolts include: Anchor, tapered, hinged, trucks and others. Anchor bolts used to secure vehicles on the foundation and made in the form of long rods with threaded end. They can be divided structurally: on the bolts with a constant incorporation – for equipment not subject to rearrangement, the bolts that allow the recess without destroying the foundations for equipment interchanged when changing products in a sustainable production. Banjo bolts (screws) are in the head a ring, for securing the screw head for this transverse axis, it can be rotated around the axis (recline) and quickly release the connecting parts (accessories). The main criterion of efficiency bolt compound is the strength of the rod bolt.

Bolts with thickened purely processed (polished) for the core hole of a sweep is calculated by cutting and crushing the side surface under the action of high shear loads. These bolts are not tightened. Most of the bolt connections are installed in the holes held together with a clearance of parts. Therefore, these bolts regardless of the direction of external loads are calculated from the tensile taking into account the twisting of the rod point of friction in the thread. In these compounds, the bolts are tightened pre-tightening torque, which is under the influence of shear stress is part of the conditions of mutual immobility details and determines the diameter of the bolt.

A more general calculation of the strength of the bolted connection, especially for pipe fittings, tanks, boilers, chemical production units, is the calculation of the flange bolts Connection cap with the cylinder, is under internal pressure p. The calculation is made on the condition of tightness of the connection. Gasket sealing element is ring-shaped with a diameter of D1 and D2. It should shrink pressure considerably exceeding the pressure in the cylinder. Deformed by this pressure, the gasket fills the irregularities of contacting surfaces and prevents leakage of fluid or gas cylinder. When variables external loads is checked the bolts on the stock on the fatigue strength.

"Telephone cross" cross phone – it's switching node connecting the telephone exchange and a linear cabling inside the building. Use it to test the phone lines and linear overcommutation, disconnect and connect subscribers to phone-tapping, etc. The structure of cross-country phone includes the following equipment: Skirtings Plinth – connects the station and the linear portion of the telephone wiring. In Depending on the number of pairs of jumper Skirtings are divided into several range;. – 2×8, 2×10, 2h8h3. Cross-boxes Cross-boxes or junction boxes are used to set the plinth with embedded inside Mounting clamps are closed and plastic construction.

Capacity cross-boxes can range from 30 to 200 pairs. Electrical cabinets SHRN Cabinets – SHRN (switchgear cabinet wall) – is functional analogue of the cross-box more power, made of metal. Its capacity ranges from 200 to 1,200 pairs. Amphenol Amphenol – Amfenolny cable used to connect PBXs and telephone cross. He characterized by the presence of two types of connectors: male (father) and female (mother). "Components of SCS" We offer our customers all the necessary components for building structured cabling systems (SCS). Below you can see brief descriptions of equipment and accessories for the SKS.

Cables UTP Cable UTP – unshielded cable is by means of which are laid horizontally or trunk lines. This cable is unshielded twisted pair, consisting of multiple twisted pairs. UTP cables are divided into those that are used for internal and for external installation. Also separately allocated stranded patch cables patch panel using patch panels by switching of active network equipment from the workplace. At the front of the patch panel ports are RJ45, on the back – jumper field 110 or KRONE. Patch Cords With patch cords connect the ports of network equipment. Patch cords patch cords are provided by several types (RJ45, RJ11, RJ12). Cross appointment panels 110 cross 110 – transit switching of multi-trunk cable .. Rosette Rosette – an integral part telephone and computer networks. Accordingly, the distinguished different types of outlets: phone, computer, power (electric). Connectors used for cable Splicing. We offer connectors RJ11, RJ12, RJ45, Telco Champ. Cabinets 19 inches, server cabinets, server racks 19 ', floor cabinets, wall cabinets We have a full range of 19-inch cabinets and racks. Floor cabinets, wall cabinets, open uprights, racks. MAXYS.shkafy 19 '- The best quality from the manufacturer. Enclosure cabinet 19 inches Monatzhny 19 '- this is the telecommunications closet, which is installed in the hardware and server rooms to install the 19-inch equipment. Cabinets 19 'are an enclosed structure with opening doors and walls. There are several types of cabinets – floor cabinets, wall cabinets, server cabinets. Open Rack 19 inch Unlike cabinets, racks 19 are an open design to install the 19-inch equipment. As a rule, the use of rack due to limited access to the server room. Server cabinet server rack – this floor cabinet monatzhny 19 inches having a depth of 1000 mm. Racks have a high level of static load and, thus, to server cabinets imposed more stringent requirements, in contrast to the usual outdoor enclosures.

Working conditions, such conditions of packaging production, replacing the old image of the smoky "foundry." In this way, get the casting of iron and steel of all kinds, bronze, brass and aluminum foundry all brands. In the box on the "Christmas tree or a bush" may immediately pour tens of castings, as in the jewelry industry, with almost exquisite accuracy. Up to 90% of castings can be used without subsequent machining. The technology is very economical in comparison with the traditional. At 1 m Casting consume 50 kg of quartz sand, 25 kg antiburning coatings, 6 kg of polystyrene and 10 square meters. m polyethylene film. Low cost of model-forming materials can save at least $ 100 per 1 ton of casting, location Casting the entire volume of container produces 70-80% of suitable casting, the savings of the charge of the metal is 250-300 kg, power – 100-150 kWh, weight of castings is reduced by 10-20% compared to traditional flask molding. Big savings obtained by molding of complex castings from wear-resistant steel (truck parts and caterpillars bronefuterovok, body parts) as sharply reduced the cost of machining.

Pour without restrictions on the design and configuration wheels, stars, heads and engine blocks, pipes of petrol and diesel engines, crankshafts, etc. Capital expenditures for the organization and startup of production are reduced to 2-2.5. The experience of running sites capacity up to 50-150 tonnes / month showed that the payback period of no more than 1.5 years. You can place these areas at the smithy, thermal and repair shops.

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