CNC PU foam sealing gasket machine using AB glue precautions
First, what is AB glueAB adhesive is the name of a two-component adhesive. One liquid is the glue, one liquid is the hardener, and the two liquid phases can be mixed to harden. Common AB glue, AB epoxy resin, AB silica gel, AB polyhelium ester, PU glue.
Two, AB rubber packaging
AB glue packaging has barrels, there are branches. The barrel is generally large, a barrel has 20KG, and the load is very small, about 1KG.
Third, the use of AB glue
1, if the manual glue, first use the measuring cylinder according to the proportion of AB, and then pour in the container for mixing, stirring, pay attention to the amount of each time not too much, otherwise it is not used up in the specified time, the glue will cure, will cause a large waste.
2, the use of CNC PU foam sealing gasket machine gluing, automatic ratio of the machine, automatic gluing, quantitative gluing, automatic path, one-key cleaning, saving time and labor, how many machines are automatically matched, compared with manual gluing, efficiency and quality should be improved a lot.
Four, foam sealing glue machine in the use of AB glue precautions
1, the studio and the use of utensils must be kept clean, otherwise it will affect the quality of the glue and bonding effect, especially oil, dust will affect the transparency and adhesion of the drops. Indoor humidity should not be too large, try to maintain ventilation or exhaust fans, personnel walk around as far as possible to wear slippers or shoe covers, indoor air is too cloudy, can sprinkle a small amount of water droplets on the ground.
2, glue workshop as far as possible to maintain room temperature, temperature on the glue can be used time and curing time has a great impact, in addition, open air conditioning, pay attention to the air outlet water mist directly on the surface of the glue layer, chemical reaction with agent B composition, white fog, oil, granular and other phenomena.
3, glue work table as smooth as possible, so as not to appear glue flow, dew, drop is not in place, drop uneven situation, you can use the balance instrument, balance ruler first debugging.
4, the temperature has a greater impact on the curing of the product, the temperature increases the curing time, with the temperature decreases the curing time is extended, the temperature is too high, can not be used, will damage the nature of the glue, can not be restored. The cured product can not be baked for a long time under severe temperature conditions, generally not higher than 110 degrees, anti-aging test experiment, placed at about 65 degrees for a few hours, observation can be.
5, the glue must be sealed and stored in a cool and ventilated place, to avoid high temperature or sunlight exposure, yellowing is largely due to the glue does not resist the UV in the sun, or beyond a certain light exposure time.
6, the glue must be mixed strictly according to the weight ratio, if the B agent is too much, it will accelerate the curing so that the glue is hard, and even can not dry; If the component of agent B is too small, the curing speed slows down so that the glue is soft and even can not dry.
7, the general shelf life of this kind of glue chemical is 6-8 months, if any component is found to be precipitated within the shelf life, please re-stir evenly before use or replacement.
8, if the glue drops after the edge phenomenon, then first with acetone or toluene wipe surface dirt and oil, or first spray oil and then drop glue, such glue (including PU) is composed of oily materials, adding color paste powder mixing, to add oily material components, otherwise there will be stratification.
9, the glue ratio, mixing moderate should not be too fast and too fierce, to slowly mix along the wall, full mixing can make the chemical reaction more adequate, better fluidity, but also conducive to better defoaming.
10, pour out the unused glue, it is strictly prohibited to pour back into the original drum packaging, the impurities brought in will make the whole bucket of glue scrap. Each time glue AB to 200g best, too much reaction will concentrate more energy, can be used for a shorter time, poor fluidity.
The above is the matters that should be paid attention to when using AB glue in CNC PU foam sealing gluing machine. During use, please pay attention to the correct use method or consult an experienced technician. At the same time, I would also like to seriously recommend SHZ Power, a professional manufacturer in the field of CNC PU foam sealing glue machine in China. If you are interested, you can click on the home page of the website to further understand the knowledge of CNC PU foam sealing glue machine, looking forward to your arrival.
