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Engineering Systems

August 12, 2017 18:08

How to treat adhesions in the tubes and that it needs to

Necessary tools and equipment that will be needed when soldering pipes.

When heated, the material of the polypropylene to 260 degrees C., its polymer chains together.This means that they can create a monolithic structure due to the acceleration of the diffusion of polypropylene.

You've probably already guessed what will be discussed further.To make high-quality soldering pipe, you need to heat it up elements to a temperature no lower than 250 ° C. As soon as the details are warmed, they should dock.Cooled PP will look like a normal diffusion joint.This is due to the following process: The tube abutting at the molecular level, the layers penetrate into each other.Technical spike passes in the form of press-fit the tube into a heated sleeve, which is also warmed.How to treat adhesions in the tubes and that it needs to

Docking polypropylene pipe at the ends - an economical soldering process.Using this method, you can be sure that your pipeline will not change its dimensions, as the place where there is a joint, there will be no bulges.

However, docked at the ends has its drawback: like the seam can not cope with the systems in which high blood pressure is provided.This is logical, because the contact area of ​​the material at the interface is almost the same as the walls of the pipes themselves.For this reason, soldering pipe-type clutch will be much more effective.

In this case, material contact occurs across the area of ​​the coupling.This method is tried and tested, so do not skimp on the solder on this technology.

To begin soldering polypropylene pipes, be reserved for marking instruments.Their list includes: a marker, the usual roulette and caliper.All of this, you will need to carry out measurement of the required length of pipe from the bay and mark the desired depth, which is immersed tube.

bit expensive cost tools for cutting polypropylene pipe.A set of tools consists of: knife, pipe cutter, calibrator, and other tools.All this is useful to you, to separate the measuring section of the bay, and cut the end.Of course, then you will need to treat the place where the cut was made.How to treat adhesions in the tubes and that it needs to

Well, the latest tools will be needed for direct soldering itself.You will need: a soldering iron with a special nozzle, and stand to it.

Perform soldering process and use only the above sets in the sequence that was specified earlier.

A more detailed description of the technology for soldering pipes.

Step One - measurements.

And so, we begin with the measurements.This is a very delicate process, since it is necessary to foresee the future results of the work, taking into account the coefficient of linear expansion of polypropylene.Calculate thermal distortion, and then subtract the result from the dimensional length of the segment.How to treat adhesions in the tubes and that it needs to

Step Two - cutting.

Now, proceed to cut.When the length is defined, remember the rule "ten times measure, cut once."If you are confident in their calculations, take a pipe cutter.It is important to use this tool, since it allows to cut the pipe perpendicular to the central axis of the tube.Due to the clean and proper cut, you can count on high-quality soldering.

Place in the caliber of the cut to align the cross-sectional shape.Ready section Flat skimmers treat to end the calibration form and remove the burrs.

now can be inserted directly in a pipe coupling, while at the outside, the depth of mark entry.This label will serve as a guide during the joining process.

Step Three - rations

proceed to the most complex process - soldering.Collect and prepare for soldering iron.To do this, take the necessary packing and place it on the heating element.Put the soldering iron on the stand and plug it into the network.As he warmed to the desired temperature, you have to carefully put the sleeve and the pipe on the hot nozzle.Keeping them requires not long, about 4-7 seconds.Take into account the thickness of the pipe and its diameter.

As warm as parts, remove them from the nozzles (necessarily wear gloves!).Immerse the tube in the coupling on the already established deep and fix the item within 30 seconds.During this time the polymer chains together and form a seam.How to treat adhesions in the tubes and that it needs to

Most importantly, do not twist or raise parts, so as not to disrupt the adhesions.

That's all.Put aside the finished design and start again the process to join the second branch.

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