What principles should be followed in the selection of dispensing needles for dispensers?

What factors affect the dispensing quality of the dispenser? No doubt, friends who have been in contact with the dispenser know the size of the dispensing volume, dispensing pressure, needle size, the distance between the needle and the working surface, and the viscosity of the glue. , Glue temperature, curing temperature curve, bubbles in the glue and other factors all affect the dispensing quality of the dispenser. It can be seen that the choice of the dispensing needle of the dispenser is very important! Then the choice of the dispensing needle of the dispenser What principles need to be followed? The following is the technical staff of Alises to tell you:

1. The dispensing needle of the dispenser needs to be selected according to the nature of the glue:

1. Aqueous liquid-small dispensing needle, low pressure, set the time as needed

2. Thick glue ---- oblique dispensing needle, high pressure, set time according to need

3. Small point----small dispensing needle, low pressure, short time.

4. Bigger point-large needle, greater pressure, longer time

2. The dispensing needle of the dispenser needs to be selected according to the type of glue:

Instant glue: Use safety pistons and Teflon-lined metal needles for water-based instant glues, use tapered slanted needles for thick instant glues, and use PP needles if flexibility is required.

UV Glue: Use amber syringes, white pistons and oblique needles (which can shield ultraviolet rays). If you use other types of needles, please order a needle that can shield ultraviolet rays from our company.

Light-curing glue: Use black opaque syringes, white pistons, needles that can block ultraviolet rays.

Sealant and paste-like fluid: If the white piston rebounds severely, please switch to the safe type and use the oblique needle.

Anaerobic glue: use 10CC syringe and white PE universal piston.