Welding machine for HDPE geomembrane seaming Welded machine

Specifications

 Machine for HDPE geomembrane seaming Welded machine

 Geo-membrane welding machine is our new developed products, which can weld geo-membrane of various thickness

and are applicable for welding

of all thermal-fused material such as PVC, HDPE, EVA, PP and so on.

1. Technical parameters>>>

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2. Main Components>>>

3. Operation principle>>>

Motor drives upper and lower pressure rollers to rotate through reduction gearbox and chain. Slide carriages drive the hot wedge and insert it

between the two base materials, at the same time lever presses pressure rollers and engages the two fused base materials.

Fig.4 Welding schematic diagram

4. Operating regulations>>>

As welding quality is direct related to speed and temperature setting during operating, so welding machine must be specified personnel operated

 to reach excellent quality and high efficiency.

1). Use with grounded 3-cord mains cable and 3-hole socket with capacity not less than 10A (socket corresponds with welder plug, phase L connected

 to live wire, N to zero line, phase to grounded protection line), confirm that external lines have been well connected. Check that power is on off state and

regulate temperature control potentiometer and speed control potentiometer to 0 position, press lever handle down to disengage pressure roller, then

 insert the plug.

2). Turn on the power and select certain temperature and speed, take several narrow materials for try welding. Temperature selection may be different for

the same material at different ambient temperature and material thickness. To determine the best welding effect, adjust the speed to approximately 2m/min,

 and then fine increase it from low to high temperature (approximately 250°C-350°C).

3). Judge on welding temperature: for transparent PE material, judge by direct observing, speed and temperature will be appropriate if welding mark is flat

and in transparent glass form; temperature will be too high and speed be too slow if mark is heavy broken; temperature will be low and speed be fast if mark

 is not transparent and with white. For opaque material, observe if there is obvious welding mark, also tensile test can be made after complete cooling.

4). Flatly and straightly trim the weld edges and frontage faced, with lower left and upper right overlapped. The overlap width is 100mm.

5). After temperature and speed have been determined, insert material to be welded between the two pressure rollers, make machine body parallel with edges

 of base materials and engage press lever handle for proper motion. Generally, only observation of deviation between welding mark and base materials is

needed for operator, and timely make correction on small degree.

6). When welding will be ended, timely press lever handle to disengage upper and lower pressure roller to prevent rubber wheel damage for long duration.

7). Excessive temperature high and low may occur because of thermal inertia. On this condition, temperature deviation may be compensated by speed regulation

 on a small degree.

8). A “T” shape overlap is formed between welded material and another material. Welding method is shown as fig.5, tightly butt the overlap head of hot wedge

against weld mark, and beveling cut length is approximately 100mm.

Fig.5“T”shape welding diagram

5. General troubles and eliminations>>>

6. Maintenance

The complete machine should be cleaned, greased and placed in a dry place if it is not used.

For PVC welding, the adhesions on hot wedge should be cleaned off if it is not used longer than 4 hours to prevent wedge corrosion and service life being

shortened.

Recommend: for welding of material that corrosive gas may be produced after hot fusing such as PVC and the like, stainless steel hot wedge (optional

accessory) is preferred for extending of service life.

Hot air welding gun you maybe interested:

Other Products you may interested:

Hot air Tool  (Repairing and patching of corners 0f  0.2mm-1.5mm)

Hand extruder 

Welding machine for more than 1mm

HDPE Geomembrane  

Geotextile PET or PP

    Welcome your inquiry and sample order

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