Advantages of PVC pipelines
PVC pipelines is a product of modern technology that provides reliable and long-lasting service to a variety of users, including contractors, engineers, operators, industries, utilities, and irrigation districts. A number of performance benefits mean that PVC pipes are now replacing many traditional materials. Sprinkler Irrigation system
Light
PVC pipelines offers a huge weight advantage over alternative pipe materials. The relatively low weight of PVC pipe means that installers are less likely to injure. And while a crew of mechanical workers or cranes may require to carry a large section of metal pipe, PVC pipelines is so light that a person could easily move it. One longpiece.This means fewer installers are needed and contractors can install pipes relatively faster than iron or steel. Less weight also means cheaper shipping because most shipping companies charge by weight. This also allows you to load larger payloads.
Flexibility
The fracture resistance of PVC pipelines is an extremely important performance advantage. Although PVC pipe is made of a rigid PVC compound, the PVC pipe itself has the ability to fail under load without fracturing. PVC pipes can be used successfully where the surface is subjected to external loads such as road traffic *. The elastic modulus of the PVC pipelines is a great advantage for underground applications, particularly where vibrations or ground movements are expected. In pressure applications, the modulus of elasticity of PVC also reduces the magnitude of pressure peaks, i.e. water hammer. PVC-O pipes have a higher resistance to water hammer than all other types of pressure pipes.
Watertight joints
An important requirement for all piping applications is the tightness of the joints. PVC pipes available with deep plug joints, press joints or solvent-based cement. PVC pipe joints with gaskets have consistently outperform traditional pipe products in actual service. PVC pipes. Now also available with fusion joints to provide a fully sealed monolithic pipe. Particularly suitable for trench-free installations and contaminated sites.
Coefficient of friction
When designing piping systems, a major concern is flow and pressure. PVC pipes provide smoother wall surfaces that reduce fluid friction and flow resistance.
This hydraulic smoothness inhibits the accumulation of sludge in the sewers and virtually eliminates tuberculosis and fouling in the water distribution network. The end results are significantly lower maintenance costs, a more efficient initial pipe design, and superior performance throughout the life of the PVC pipe.
Safe material
PVC pipelines is a non-toxic and safe material that has been used for over half a century. It is also the most researched and tested plastic in the world.
Longer lengths
PVC pipe is usually supplied in 6m lengths. However, it can supply in other lengths as required. This reduces the number of joints needed compared to other piping products. Fewer seals allow for faster and more efficient installation, less hydraulic friction, and less chance of leaks.
Fire resistant
PVC pipe is difficult to ignite and will not continue to burn in the absence of an external ignition source. The self-ignition temperature is 450 ° C.
Design versatility
The physical properties of PVC pipelines allow planners and designers a high degree of freedom in designing new products and developing solutions where PVC serves as a replacement or renewable material.
Tonnage considerations
Forming tonnage is another issue that both the operator and part designer must consider. Familiarize yourself with the formation of the tonnage tables. Learn to read and apply them, and be sure to adjust the values for various types of metal. A typical forming tonnage chart might only apply to 60,000 PSI of tensile strength of mild cold rolled steel. If you skip this step, you could damage the part, punch, die, press brake, or all of the above. It could also put your carrier in a dangerous situation. Select tool sets based on the required internal bend radius of the part. Unless the total tonnage requires for the bend exceeds the nominal tonnage of the tool, which you never want to do.
Minimum flange size
Expanding last month’s column to the minimum flange size, this month we will look at the minimum flange that can be produced in a given mold opening. To determine the minimum flange value, the radii on the two upper edges of the die must consider. When the flange is short and close to the die radius, the part can slide enough to thin the flange or just fit directly into the die slot. Calculating the minimum flange before parts hit the ground will save a lot of time, hassle, and wasted parts.
Principles For Choosing Press Brake
Principle No. 1:
the precision used in the operation of the mechanical system.
In principle, it can be argued that the beam error is physically unavoidable, so the point is how much deviation the user can accept. A little less accurate is acceptable for simple parts, but most parts often require high accuracy, especially in the case of continuous fabrication after bending.
Principle No. 2:
How flexible new machinery should.The wider the range of parts, the more species. The greater the flexibility requirements of the bender. In other words, for economic reasons, the operations of the press brake in hardware and software must very simple. Even when the order changes frequently and rarely repeats. The adjustment time can minimize.
Principle No. 3:
Need to determine the production capacity and size of the folder. The pressure, bending length, stroke, and height of the structure must measure from the dimensions of the workpiece.
Principle No. 4:
It recommended that the prospective buyer carefully consider the final use of the machine, the possible known deflection of the machine, the bend radius of the part, etc. The press brake and other CNC equipment have a different appearance than the machining range and technology, so as a manufacturer you should consider all of its before making the decision to buy a press. Brake.
Wrong decision
As a decision maker, you will responsible for understanding the performance, processing range, operation, and accuracy of the press brake. This is no small thing because once you make the wrong decision, your production costs will rise and your cost recovery will be impossible. Therefore, before making a purchase decision, you should carefully consider the following 7 factors that can help you make the right decision.
What parts are you going to produce?
The point is You need to buy a press brake that can help you complete the machining task, rather than the one with the shortest work table and lowest tonnage. Check the types of steel sheets, as well as the maximum thickness and length. If it is a low carbon sheet with a maximum thickness of 3 mm and a length of 2500 mm, the free bending force must not exceed 80 tons.
Press brake
As for how to calculate the bending force of the press brake, you can read this article. However, if you have to machine a hollow block at the bottom. You should probably consider purchasing a press brake with a force of around 150 tons. If the sheet is low carbon steel with 6mm thickness and 2500mm length. You need to purchase a 100 ton press brake. If you need to bend the sheet metal with a hollow block at the bottom, you will need a large CNC press brake. If the sheet metal approximately 1250mm or shorter, a smaller, even half the size. CNC press brake should chosen. This way, your purchase cost will go down a lot. It must remembered. That the length of the sheet is one of the key factors in choosing a suitable press brake.
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