Posts tagged: industry

Low Oil

DP jack 10 is comprised of base on which a plate 2 mounted hydraulic pump 3 and hydraulic cylinder telescopic working 4. Pump housing 5 is closed from the top cover 6, in which there are 7 to handle the transfer and installation of jacks and 8 control handle with a safety valve. Side of the pump housing 5 is the handle 9, is designed for installation in its operating handle 10. Handle 9 can be installed in two positions: upright and horizontal. For installation in a horizontal position to unscrew a nut 11 is mounted and rearranged the handle 9 to 1 … 2 hex shaft, and then fasten the handle to the new position of nut 11. Inside the housing 5 pump is equipped with two pumps dvuplunzhernyh: 12 Low pressure and high pressure outlet 13 14 and 15 reverse valves. Pump control shall handle 9 through a shaft 16 and yoke 17.

Handle 8 is associated with stem pressure relief valve 18. On the cover cap 6 has 19 to top up the oil pump inside the case. On the side of the housing 5 is installed plug 20, instead of which can be installed (via an adapter) to gauge pressure not less than 70 MPa for the control of operating pressure and adjust the safety valve 18. DP jack 10 operates as follows. Its installed between the sleepers on ballast aligned so that the telescopic 4 cylinder was under the sole of the rail. In the handle knob 9 is inserted working 10 and pumped oil to the desired height of the lift cylinder.

In the course of 12 plunger pump up the low-pressure oil that is in its working cavity has an upper volume and a plunger pulls over 13 high blood pressure. At the same time opens the inlet valve 14 and into the working cavity of the piston high-pressure oil supplied from the tank. When moving the plunger 12 down oil in its working chamber with low pressure pushes the piston plunger 13, forcing it to move down. Due to the change section of the plunger 13 of high pressure moving down, hands in return valve 15 oil (with a pressure of 2 times greater) in the cavity of the telescoping cylinder 4. In this case the inlet valve closes 14, cutting off the oil tank of the working cavity of the pump. During the return of the working pressure of the handle 10 the operator's hands through the shaft 16 and rocker 17 transferred to a second pump, and the process repeated. At the end of recovery you must click on the hilt of eight control and safety valve, pressing his foot on the cylinder, put it down. At excess pressure over Desktop offers a safety valve 18 and flows into the oil tank. What is fracking may find this interesting as well. Thus, the safety valve protects the hydraulic system of high pressure (above normal) and bypassed oil at the end of the work of cylinder to the tank. To adjust the valve 18 screwed his body. Ram DP 1.10 is a modification of the jack 10 without PD of the second stage (high pressure) pump. The work of this modification of the jack with low pressure carried out similar work the jack 10 with PD, except that it has no high-pressure plunger.

Birch Wood

Having spent many years in the construction of wooden houses, never asked the question, but why not build a house out of birch? Always used in construction materials such as pine, fir, larch, oak and cedar. But birch tree, too, and it can also be used in construction. By reviewing a lot of literature, I want to tell you why it is all the same houses are not built of birch. To begin with, that describe the tree and its properties: 1. Color Wood white with a pinkish or yellowish tinge, 2.

Medullary rays are narrow, differing only in radial section 3. Annual rings vary bad 4. Wood moderately hard, uniform in density, well processed 5. It has a great resistance to splitting, is easy to simulate a valuable species, well painted and polished, impregnated with antiseptics, 6. Birch is subject to warping and decay.

The most valuable for the manufacture of flooring is the Karelian birch, which has a particularly beautiful texture and color; Birch – genus of shrubs and trees from the family of Birch. In Russia birch assigned to the most common tree species. The average value of dry weight is 640 kilograms per cubic meter. Most of the various components of birch bark, namely, wood, bark, birch sap, is used in agriculture. These parts, as leaves and buds are used in medicine. Also, certain types of rocks used in ornamental horticulture, for the establishment of shelter belts. Leaf cover and birch buds from time immemorial used in folk medicine as an antipyretic and antiseptic. That is why the branches are made from birch twigs bath. On the feast of the Holy Trinity Church of the home and decorate with birch branches. In early spring birch begins to give the so-called birch sap. However, the harm caused by the collection of juice, is quite large, because the holes through which the juice is collected and then penetrate the microscopic organisms that cause rotting wood. The main value is its undemanding birch, namely, it has the property to resume its growth in different conditions. Berezaobshirno used in the national economy, as well as her receive high quality raw materials for various industries. Wood is well polished, easy to process and has the properties of elasticity and homogeneity. Made of wood flooring, skis, plywood, turnery. Birch has high physical and mechanical properties. Wood itself rather smooth and has a homogeneous structure. See more detailed opinions by reading what PCRM offers on the topic.. It also has a pale brown core and has a broad white-cream sapwood. Birch wood can be easily put into the form that will be like a valuable tree species, and because of this property birch is widely used in interior decoration wooden house. Wood is very solid and sturdy, in especially at impact, but the tree does not tolerate a large abundance of moisture and high humidity starts, thanks to the development of fungus, rot very quickly, any birch log turns into dust for a year or two, and then faster, thus limiting its use in construction of houses made of wood.

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