Operation, display, eliminating faults, specifications UK , specifications USA.

Squeeze Analyser Specifications

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OPERATION
Squeeze Analyser enables the correct squeeze time and electrode force to be established not only when setting up resistance welding equipment for the first time, but also when doing regular maintenance or corrections after repairs. By setting the optimum weld cycle with the Squeeze Analyser, resistance welding equipment will be adjusted to the highest possible speed with consistent weld quality.

The basic resistance welding cycle involves squeeze, weld, and hold times as shown in the figure below. The squeeze time in a resistance weld is the time which elapses after the electrode force is activated and before the welding current commences. The weld time is the period when the current passes between the electrodes. And the hold time is where the force remains on the electrode whilst the spot weld cools.

The Squeeze Analyser displays both the force at the beginning of the weld and the peak force during the welding cycle. This is easily seen on the optical display on the Squeeze Analyser enabling the welding parameters to be established quickly and simply. By setting the squeeze force to be slightly lower than the peak force, it is possible to ensure that the welding sequence is adjusted to produce consistently good welds.

One or more of the following spot welding conditions may be related to incorrectly set squeeze times.

  • Severe surface splashing.
  • External cracking.
  • Burnt surface condition.
  • Electrode pick up.
  • Expulsion between faying surfaces.
  • Voids and Porosities
  • Copper Deposits in the contact area.
  • Excessive Electrode Wear.

 

 

 

Squeeze Analyser Specifications
UK/European Units

Measurement Ranges:

  • 1. 0.5-1.25 kN
  • 2. 1-2.5 kN
  • 3. 2-5 kN
  • 4. 4-10 kN

Resolution:

  • 1. +/-0.025kN
  • 2. +/-0.05 kN
  • 3. +/-0.1 kN
  • 4. +/-0.2 kN

Accuracy (of full range): +/-2%
Display: Squeeze force & peak force
Min. electrode gap: 6mm Max. electrode gap: 20mm
Weight (cased): 1.5 kg
Power: 4 rechargeable AA Ni-Cd cells
Charger Input: 230V 50/60Hz Charger Output: 7VDC 75mA

Dimensions: (height / width / depth)
Display Unit: 160 x 100 x 50mm
Probe: 200 x 50 x 50 mm

 USA Units

Measurement Ranges:

  • 1. 100 - 250 lbf
  • 2. 200 - 500 lbf
  • 3. 400 - 1000 lbf
  • 4. 800 - 2000 lbf

Resolution:

  • 1. +/-5 lbf
  • 2. +/-10 lbf
  • 3. +/-20 lbf
  • 4. +/-40 lbf

Accuracy (of full range): +/-2%
Display: Squeeze force and peak force
Min. electrode gap: 0.25 in. Max. electrode gap: 0.75 in.
Weight (cased): 3.3 lb
Power: 4 rechargeable AA Ni - Cd cells
Charger Input: 115V 50/60Hz Charger Output: 7VDC 75mA

Dimensions (height / width / depth)
Display Unit: 6.3 x 4 x 2 in
Probe: 8 x 2 x 2 in

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