The glue using methods Overview
Time：2012-09-21 10:08:09 Hits：1878
Gluing methods can be divided into: a gluing method, spray coating method, dip coating method, a blade coating method, roll coating method, injection method, separate coating method.
(1) gluing method. With a brush or row pen the glue is applied to the surface of the adherend. The brushing method is suitable for brushing the surface of any shape, for the viscosity and fast evaporation rate of the glue can not use a brushing method. Gluing along a direction, not back and forth, slower speed, so as not into bubbles. The brushing method low productivity, poor working conditions.
(2) a spray coating method.Glue gun glue spraying on the surface of the adherend, the characteristics of the spray is a subbing layer having a uniform thickness, high production efficiency, suitable for a large area of adhesive. As spraying glue used require low viscosity and therefore contains a large amount of volatile solvent, thus polluting the environment, nor safety.
(3) dip coating method. Will be sticky was immersed in the aqueous solution of gum or glue dispersion A process for coating. Suitable for small, thin, complex be adherend, its a bit simple device, less glue consumption and high production efficiency. Soak method commonly used in the manual method, rotary dip coating method, a dip coating method by centrifugation, vacuum dip coating method, transmission dip coating method.
(4) Scratch hair.A blade with a metallic or nonmetallic scraping pasty or pasty glue put on the parts to be bonded and sealed.
(5) a roll coating method. Is the use of the roller first dipped in the glue, then transferred to the desired surface of the adhesive or coating, applicable to the coating of pressure-sensitive adhesive and hot melt adhesive. The law coating evenly, can be single-sided both sides, gluing, high efficiency, suitable for continuous large-scale production, the drawback is the large investment in equipment.
(6) injection method.Glue loaded into special containers, then manual, mechanical, pneumatic pressure into the seams, Wai at. For example, the injection tube of plastic injection is the most simple tools, this method saves glue, both simple and applicable, useful in sealing the plugging, bonding spot welding on.
(7) separately from the coating process.The two components of the two-component reaction type glue (such as fast-curing acrylic resin glue) were coated on the two are on the surface of the adherend, and then the two laminated together to form an adhesive, the method uses convenient, without mixing, to avoid the waste.
