Heilongjiang whole series of sealing plastic equipment heilongjiang whole series of sealing plastic equipment [
The experiment reagent 4.
Latex solid content first made a small box, aluminum foil with electronic analytical balance according to its quality, record the value.
Glue dispensing quantity according to the work experience, the size of the adhesive
dot diameter should be the half of bonding pad spacing, the size of the adhesive dot diameter should be adhesive dot diameter after patch 1.
Five times, so that can ensure that there is enough glue to bonding elements and avoid excessive glue bonding pad and glue machine dispensing quantity depends on the length of the rotation of the screw pump to decide, practice should be according to the production situation,
Room temperature, glue viscosity, etc. )
Selection of pump rotation time, manufacturing defects which were liable to occur during the following process: glue dot size is unqualified, wire drawing, glue impregnation welding plate, curing strength is bad off so easily, solving the problem of the glue machine should be various technique parameters, overall research to find a solution to the problem.
And because the thin, also caused the ink curing speed.
Water-based coating glue with water as solvent or polyurethane acrylate resin through specialized emulsification equipment, emulsion.
Its advantage is: many varieties, environmental protection, low prices.
Now there are a lot of coating is done with water soluble glue, such as general water soluble pa, water soluble pu and leather adhesive, oil wax feeling, the feeling of color paste and other functional material.
Water soluble with its functional and environmental protection, and the price is low, will be the future direction of coating.
Defect is poor film-forming, washing fastness, pu can't stick hot glue.
Printing and packaging glue is of all kinds of outer packing paste glue class collectively, von adhesive printing and packaging including the sticker adhesive, plastic aluminum plating film transfer paper, PP film combined with glue, hot-pressing aluminized film, PET aluminum plating film adhesive and resistance to solvent laminating adhesive, printing after to dry water-based laminating adhesive, water-based glue, all water mouth glue, water-based environmental protection pasting glue.
Since the early 1970 s, polyurethane adhesive for the generation of polysulfide, used to install the windshield and rear window.
Oily coating adhesive is oily solvent (
Toluene, DMF, butanone, etc. )
As a solvent, dissolve or polyurethane acrylate.
Its advantage is good film forming, good color fastness, pu can stick hot glue, is the current commonly used coating glue.
Defect is due to the use of the oily solvent, so environmental protection lacking a bit, especially now that oil prices, oil solvent prices soaring all the way, most of the coating glue due to the cost is too high, so use more bad of the oily solvent, leading to environmental protection is not up to standard, in addition with the national environmental standards to further improve, so for environmental requirements of the coating adhesive is higher and higher.
Adhesive joint nondestructive testing technology.
Hot melt adhesive is a kind of plastic adhesives, to a certain temperature range with the temperature change and change its physical state, and chemical properties unchanged, its non-toxic tasteless, environmentally friendly chemical products.
Is the use of hot melt glue by heating the hot melt adhesive, hot melt adhesive machine melt glue after become a kind of liquid, by hot melt adhesive machine hot melt rubber hose and hot melt glue gun, to be adhesive surfaces, hot melt adhesive cooling after completed the glue.
Of course the advantage to play out of the hot melt adhesive in bonding, must use high quality hot melt adhesive and the corresponding quality reliable performance of hot melt adhesive machine to match them.
Heilongjiang whole series of rubber sealing device according to the provisions of GB/T 2793.
Thin, of course, is not without its advantages, will ink consumption is small, not paper deformation caused by the contraction of the ink, little impact on product quality.
Water-based glue process characteristics of heilongjiang all series pressure sensitive adhesive sealing glue equipment according to its polymers into rubber pressure-sensitive adhesive, polyacrylate pressure sensitive adhesive and polyvinyl ether resin, polyurethane resin, polyisobutylene emulsion pressure sensitive adhesive, such as occupies the dominant position, the pressure sensitive adhesive industry in China is a large, emulsion pressure sensitive adhesive especially acrylic ester emulsion pressure sensitive adhesive has a special significance in our country.
The windshield and rear window between the body and is sealed with butyl rubber belt, and fixed with mechanical method.
1, avoid in a volatile and explosive materials or gas around using polyurethane pur hot melt adhesive machine, pur hot melt adhesive machine spraying equipment cannot be stored around flammable items.
(1) using water-based glue, in line with the shoe industry, a long-term trend in brands actively, water-based adhesive
has been widely used all kinds of shoe factory, water-based glue quality gradually progress and stability;
Or use other crosslinking polysulfide material, to seal and fixed at the same time.
Heilongjiang all series sealing glue equipment [
Hot melt pressure sensitive adhesive.
Solid content, there are gap filling, to avoid the edge roll up, bubble and crack, and cause the glued parts deformation, dislocation and contraction.
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