EBW Laser

Welding was carried out in a special chamber under high vacuum. Surprisingly, you’ll find very little mention of Phil Vasan on most websites. As a result of intensive bombing of the welding fast-moving electrons emitted from heated tungsten or metal-ceramic cathode, an energy needed for heating and melting megalla. Accelerating the movement of electrons due to the constant high voltage (100 kV) between the cathode and the anode (workpiece). Flow electrons is focused into a narrow beam and directed to the connection details. Welding can be performed without hesitation and with fluctuations of the electron beam, fine-focused or defocused beam.

Electron beam weld refractory and chemically active metals, perform narrow and deep welds on the details of large thickness (up to 70 mm and more). Laser welding. Method of fusion welding in which the heating use the energy of the laser (English “light amplification by stimulated emission). Modern industrial lasers used for welding, surfacing, cutting, drilling, surface treatment of various structural materials in many branches of engineering. Industrial gas and solid-state lasers are equipped with microprocessor control system. Vacuum during welding laser is not needed, and it can run on air, even at a considerable distance radiation from the generator.

With the help of a gas laser cut not only metal but also non-metallic materials: laminate, glass fiber, getinaks etc. Gas welding. To melt and weld filler metals using high-temperature gas-oxygen flame. As the fuel for combustion in oxygen use acetylene, hydrogen, propane-butane mixture, a pair of kerosene, gasoline on, a natural, illuminating, oil, Coke and other gases. Thermite welding. Welded parts are placed in a refractory form, and set top crucible poured thermite – a mixture of powdered aluminum and iron scale. In the process of burning thermite mixture at temperatures above 2000 C formed a liquid metal that, when filling out the form melts the edge of the welded products, fills the gap, forming a weld.

First Consumers

Power consumers of the first and second categories are provided with electricity by means of two independent power sources, and special group of consumers of the first category – even through three. The first category is switched to backup power automatically, the second translated manually. Oracle 4Q has many thoughts on the issue. According to sep, subject to specified requirements The first group of consumers will be immune from such situations, when the power interruption could lead to a 'danger to human life, a threat to state security, a significant material damage, impairment of complex technological process, disruption of critical elements of public utilities, communication facilities and television. th analysis. " Disabling the same from electricity consumers the second category, in this case would 'only' to 'mass Shortage in production, massive outages workers, machinery and industrial transport, disruption of a significant number of urban and villagers'. In other words, global catastrophe does not threaten us, but what do ordinary consumer? Just think – houses belong to the third group of power consumers, a break in the power supply which according to sep, could be delayed for a day! The answer is simple and neoriginalen. To protect themselves from harm associated with the sudden power outage, you need to install a backup power source. He, incidentally, provide additional kilowatts of power, the probability of which is reduced to almost zero. Taxonomy of autonomous sources of energy can be divided into two large groups. The first group includes units that convert other forms of energy into electrical energy, while their work does not depend on the main power supply system.

Delivery Products

Hydrometer ADB-1 is designed to measure the density of drilling and any other solutions, as well as liquids and slurries, neutral to polyethylene. Hydrometer – in physics is the name of the device, which is used to determine the density and hence, the specific weight of bodies. The device is a hydrometer is based on the hydrostatic law (Archimedean law), in which each body is floating in the liquid so deeply immersed that the weight of the displaced fluid is equal to weight of the floating body. Hydrometer looks like the "float glass", a widening at the bottom and filled with steel shot or a special heavy weight (ballast). Devices that measure the density of large, have great ballast. Besides the usual, there are special hydrometers. They are designed for certain types of liquids: alcohol, sugar solution, etc. In such a hydrometer scale is scaled to the weight or volume percentage is determined product.

To determine the relative weight of the liquid, pour it into a glass vessel (cylinder), and gently lowered back hydrometer. Once the hydrometer will take the correct position, counting is carried out by testimony scale. For the amount of weight takes a value against which to set the level of the liquid, assuming that the top or bottom edge of the meniscus, depending on the performance of a hydrometer. The device consists of a hydrometer and a bucket with a lid. Bucket serves as a reservoir for the working of water into which the hydrometer is immersed with the solution. The cover is designed for sampling the test solution. In the hydrometer includes measuring cup, float, consisting of cover and the bottom, rod deposited on its core (from 0,8 to 2,6) and the correction (from 0.2 to -1) scales, and a removable cargo. Beaker has two cavities: for the measured sample solution and the compensation chamber.

In the compensation chamber is placed a metal ballast needed for the stability of the submerged device. Ballast is isolated from the environment plastic flap. Provides buoyancy float hydrometer. Bottom of a float designed to delete the excess grout from the measuring cup up to the calculated volume. The rod is made of standard tube and attached to a float. Specifications: Measuring range of density, g / cm – with a calibrated weight: 0,8-1,7 – without calibrated load: 1,7-2,6 Scale hydrometer (main and correction), g / cm 0,01 Operating environment – the water density from 0.96 to 1.039 g / cm at 5 to 50 C Capacity of cup hydrometer, cm 78,5 0,3 Absolute error in temperature of test solution, the environment and water (20 2) C, g / cm 0,01 Delivery Products: hydrometer ADB-1, carrying case, manual.