Tag Archives: tube tools

How Does a Tube Straightener Work?

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In spite of great advances in manufacturing processes, still most of the tube and pipe production methods produce tubes that are neither round nor straight. In order to reduce ovality, and increase straightness, rotary straightening machines were developed.

 

The machines that are used for straightening are built with several methods of driving the rolls. While some machines have a discrete drive motor for every roll, majority of current machines use two drive motors – one for the top set of rolls and other one for the bottom set. Irrespective of the way in which the rolls are driven, it is essential that all the rolls revolve at equal speed from about 1 RPM to 2 RPM. Additionally, it is necessary for the manufacturer to build an electronic load sharing system to make sure the power required to straighten is shared equally between both the driving motors. A check of motor loading and roll RPM (Rotations per Minute) should be done, every time the rolls are changed. Further, this post will explain the working of a tube straightener.

 

Different Straightening Techniques:

 

Rotary tube straightening machines get their name from the tube that rotates while passing through the machine. The rolls hold and rotate the tube while feeding it through the machine. This is carried out until the entire or the desire length of the tube has been straightened. When the tube passes through the machine, it is exposed to two straightening forces, namely, bend (or offset) straightening, and pressure straightening.

 

  • Bend Straightening: One or more pairs of rolls can be adjusted to cause the tube to follow a curved path through the machine. Bending the tube in this manner is the main straightening action.

 

  • Pressure Straightening: Each pair of rolls can be adjusted so that the gap between them is slightly smaller than the outside diameter of the tube. As the tube passes through this limited gap, it is exposed to pressure. If this pressure is sufficient, then it causes the tube walls to be strained past their elastic limit, thereby causing some straightening of the tube. If the ability to squeeze the tube is used properly, it will help the tube to “round up”, thus removing some or all of its ovality.

 

You must carefully control the amount of bend, so that it has adequate force to take the tube past its elastic limit to achieve straightness.

 

Advantages of Additional Bending Moments:

 

Following are the advantages of additional bending moments:

 

  • With additional bending moments, the operator can apply a big bending moment at the first pair of deflecting rolls and lessen the linear moment. In this case, the final pair of rolls provides a finishing action.
  • Large number of plastic cyclic deflections helps to straighten the badly bent tubes.
  • They deliver more optimal straightening of the leading as well as the trailing end of the tube.
  • Materials such as copper tube can be so efficiently straightened that no traces of residues are left behind. Subsequent annealing does not change the tube’s straightness.
  • Last, but most importantly, they achieve lower straightness and ovality tolerances despite any increase in work hardening.

 

And then, let us understand how tube straightener is used.

 

How to Straighten a Tube By Using Tube Straightener?

 

Follow these simple steps to straighten a tube:

 

  • Step 1: Bend the end of the coiled tube
  • Step 2: Insert the tube into either side of the tool
  • Step 3: With the help of the adjustment knob on the top, bring the rollers into position, and feed the tube through
  • Step 4: After enough tube has cleared all the wheels, start pulling the tube through with constant pressure
  • Step 5: With the help of the adjustment knob, you can fine tune the alignment for the tube
  • Step 6: Pull the required length of the tube through the tool

 

All you have to do is, push the piece through the wheels and work it back and forth. You can fine tune the adjustment knob till all the bends have been straightened.

 

Learn more information about tube straightener, I recommend that you can visit the website of Maxclaw. The company is the professional manufacturer of tube tools. You can find tube cutters, tube benders, deburring tools, double flaring tools, and much more products on their site. Please feel free to check out Maxclaw website and feel free to send inquiry to let them know your requirements.

 

 

Article Source: https://www.woodwardfab.com/blog/how-does-a-tube-straightener-work-tube-straightening-techniques/

What Is A Tap Reseating Tool?

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Tap reseating tools are plumbing tools used to repair water taps. They are hand tools, but there are attachments available that adapt them for use with a drill. There are two different designs of tap reseating tool, but the variation does not affect performance. They are for use on different tap designs.

 

Tap reseaters are used to fix one of the possible causes of a leaking tap. A leaking tap can be caused by multiple things and is dependent on the type of tap you have. A leaking tap is most commonly caused by general wear and tear of its parts.

 

Tap reseating tools repair compression washer taps. The flow of water from a compression washer tap is stopped and started by the movement of a rubber stopper (washer) against a hole (seat) inside the tap body. Tap reseating tools repair the seat of a tap.

 

What Is A Tap Reseating Tool Used For?

 

Tap reseaters fix that leaking tap that gets on everyone’s nerves. There are several things that can cause a dripping tap such as a damaged seat. A damaged seat can be easily fixed using a tap reseating tool.

 

The tap seat is subject to constant use. It is directly below the washer, which is moved up and down every time a tap is used. This movement, along with its constant contact with water, wears down the seat and causes corrosion.

 

The tap seat is especially delicate in hard water areas where lime scale can build up. The tap reseater can be used a number of times to grind down the seat, but eventually the whole tap will need to be replaced.

 

Tap reseating tools can also be used for repairing stopcocks in the same way they repair taps. Stopcocks are used to turn off the water supply to internal outlets.

 

How Does A Tap Reseating Tool Work?

 

A worn down or built-up seat causes unevenness. This means that when the washer is down there may be room for water to trickle through; causing a drip.

 

The tap reseating tool grinds away any unevenness on the seat so that it is smooth. This means that the washer is able to sit flush on the seat and there are no gaps for water to pass through.

 

Where to Find Excellent Tap Reseating Tools?

 

I recommend one manufacturer to you – that’s Maxclaw Tools Co., Ltd. The company specializes in kinds of tube tools, including tap reseating tools, tube cutting tools, tube bending tools, flaring tools, deburring tools, etc.

 

If you need more information about tap reseaters, please do not hesitate to check out their website. Find ideal tube tools at Maxclaw.

 

 

Article Source:

https://www.wonkeedonkeetools.co.uk/tap-reseaters/what-is-a-tap-reseater/

https://www.wonkeedonkeetools.co.uk/tap-reseaters/what-is-a-tap-reseater-used-for