Hose assembly - how the selection

Hose assembly usage affect many factors , only in accordance with the conditions and the correct selection of hose fittings, hose used in order to ensure the reliability and economy. These factors are:
1 , hose size
Hose diameter should be appropriate, too small diameter pipeline will increase the flow rate of the medium , the system heat, reduce efficiency , and will produce excessive pressure drop , affecting the overall system performance , if the hose with hose clamps fixed or wear over steel and other spacers , they should also pay attention to the outside diameter of the hose .
2 , the working pressure
Generally refers to dynamic pressure hose hose in continuous maximum allowable working pressure . In accordance with the provisions of the relevant international standards for hydraulic hose safety factor is generally recommended working pressure of the hose is usually a quarter of the minimum burst pressure values ​​.
3, the impact stress and fatigue life
The selection is based on the hydraulic hose system design maximum pressure value determined . As the hydraulic system pressure value is usually dynamic and sometimes impact pressure , impact pressure peak is much higher than the maximum system pressure. However, the system generally have a relief valve, the impact pressure of the hose will not seriously affect the fatigue life. For particularly frequent shock pressure of the manifold block , suggested the use of particularly resistant to impact pulsation hose products.
4 , the temperature range
Users should be allowed in the hose quality specifications used within a temperature range of hose . If the working environment temperature exceeds this range , it will affect the life of the hose , which will greatly reduce the ability to withstand pressure . Operating ambient temperature is too high or too low, long-term system , we recommend using the hose jacket.
5, the chemical compatibility
If you use special hydraulic medium , users should ensure that their choice of hose assembly hose inner and outer , joints and O-ring compatible with the media.
6 , the bending radius
Bending radius
Meaning :, R is the hose can be bent without damage or shorten the life of the inner circle of the ( minimum ) radius .
For a hose , R value is banjo fitting certain. If the bend radius is less than when using the R value with the textile reinforcing layer is likely to occur hose kinks. Use a spiral wire hose would be better.
7 , the friction
Hose when used usual contact or friction with hard objects , the proposed increase in the external hose spring jacket.

cutting machine classification range of applications

cutting machine classification range of applications
Cutting Machine Image

Cutting machine to distinguish from the cutting material is divided into metal and nonmetal materials cutting machine cutting machine.

Metal cutting machine into flame cutting machine, plasma cutting machine, laser cutting machine, waterjet cutting machines;

Nonmetallic material cutting machine cutting machine tools mainly.

Cutter way to manifold block distinguish from the control is divided into CNC cutting machine and manual cutting machines.

CNC cutting machine is to use the digital process-driven machine movement, with the machine movement, the cutting tool with a random distribution of the object to be cut. This mechatronic

Of the cutting machine it is called CNC cutting machine.

Laser cutting machine is efficient fastest, highest precision cutting, cutting thickness is generally small. Plasma cutting machine cutting speed quickly, cutting surfaces have a certain slope.

Flame cutting machine for carbon steel in thicknesses greater.

Applications
Cutting machine application of metal and nonmetal industry, in general, non-metallic SECTOR rather meticulous cutting stone like a stone cutting machine, water jet cutting machine, serrated cut

Cutting machines, cutting fabric and plastic, chemical products used in laser cutting machine, cutting machine blade, cutting metal materials are flame cutting machines, plasma cutting machine, flame cutting

Machine inside was divided CNC cutting machine, and manual two categories, the categories are manually, small car, semi-automatic, pure manual, CNC there, gantry CNC cutting machine, cantilever CNC

Cutting machine, desktop CNC cutting machine, CNC intersecting line cutting machine and so on!

Cost
The most expensive laser cutting machine is the highest accuracy and efficiency a high-tech cutting equipment, waterjet cutting machine, followed by flame cutting machine is also relatively cost again bottom

, Plasma cutting machine using the lowest cost (calculated per piece)!

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Outlook

Generally CNC flame hydraulic hose and fittings cutting machines, plasma cutting machine holds a large part of the user, and later fine plasma, laser cutting will replace the former, as the main

Stream cutting machines, because they are environmentally friendly, cutting speed, cutting quality is good!

what is the hangers

Spring hanger factory carried out in the factory setting, when mounted to the rear piping and equipment.
Hanger is mainly used for power plant steam piping or boiler equipment, heat is generated in the operation of its equipment displacement device. Calculated according to the pipeline to manifold block determine the force of spring hangers work and thermal displacement requirements, the factory will spring hanger design load for tuning in accordance with: the spring preload and set the cold load position; also marked when cold Theoretic working position.
Spring hanger factory carried out in the factory setting, when mounted to the pipes and equipment after adjustment for such threads will disengage the lock pin, then spring is the design of the actual load required for cold load.

the hydraulic control valve

Hydraulic control valve

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(Referred hydraulic valve) is a hydraulic system control element for controlling the hydraulic system pressure of the fluid flow and flow direction, so as to meet the various requirements of different actions actuator.

Hydraulic control valves can be divided according to their role in directional control valves, pressure control valves and flow control valves three categories, corresponding by these valves are three basic circuit: direction control loop pressure control loop and speed loop. Press the control of different ways, can be divided into ordinary manifold block  valve hydraulic control valve, servo control valves, proportional control valve. Different forms depending on the installation, hydraulic valves can be divided into tubular, plate and cartridge type, and so are several.
Composition

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 Two-way cartridge valve from the cartridge device, the control cover, pilot control valves, manifold blocks, four-part

1 Cartridge - also known as the felling assembly, which consists of spool and sleeve, springs and seals four kinds of parts. Main function is used to control the direction of the main oil line, pressure and flow.

2 Control cover - from the cover of the embedded micro-pilot control element (throttling plug) as well as other parts and other accessories. It is mainly used to secure and guarantee Cartridge seal; communication control oil and felling the link between the control chamber and implement control.

3 pilot control valve - mounted on the control cover (also can be installed directly on the manifold body), is the implementation of action for felling Cartridge smaller gauge reusable fitting control valve. Mainly pain ¢ 10 ¢ 6 and the standard diameter solenoid valve, proportional valve, adjustable dampers, buffers, etc.. Felling larger size may need to use a smaller two-way cartridge valves for secondary control. Dimensions comply with ISO and national standards solenoid valve can be interchanged with the installation of similar products at home and abroad.

4 manifold blocks - used to install Cartridge, covers and other control valve control, communication and control circuit of the main oil blocks

cloth hose diameter round loss treatment

Fabric hose diameter round loss there are many approaches which can be used two uncapped autoclave, the tank in addition to a normal inlet pipes and exhaust pipes, but in the creation of two cans of soft convergence inlet pipe and the exhaust pipe, forming a good hose is placed on the platen vulcanizing car, there are loose platen two multi-plug through the steam pipe, hose two distinguished pierce each respective manifold block plug inside, fixed with clamps Well, then vulcanized vehicle selected into the tank, to identify the convergence of multi-plug Explorer and soft steam pipe attached securely closed autoclave, start with one end of the flexible hose to the steam pipe convergence enter the steam, and then give it away again autoclave steam, pressure inside the hose high pressure over 0.02 a tank O. 03MPa under vulcanization. Tank and hose need to live within the condensate discharge. hydraulic couplings Vulcanization end, stick pressure also exhaust and spray cold water in the tank to cool cans of soft convergence tube after each unload, pull vulcanized car unloading Lost fixture, pulled out the hose cutting head reversal. This approach works best!