SU939518A1 - Method for gluing products - Google Patents

Description

The invention relates to the bonding of building materials with inorganic adhesives. There is a known method of gluing products by applying low-viscosity organic glue to the glued surfaces and joining glued surfaces with subsequent vibration f 1 J. However, this method is suitable only in particular cases - when testing tests of adhesives or in the case of gluing small-sized parts, such as the high-frequency field formed by the transducer acts only on the small narrow plane of the diaphragm of the PMS-6-22 transducer with an amplitude of 1-10 μm, which in the case of filled adhesives can “not capture the entire thickness of the adhesive raskoljki. The closest in technical essence to the present invention is a method for gluing products by applying a LAYER to the bonded surfaces of a phosphate adhesive. The disadvantage of this method is the low strength of the adhesive joint and the poor distribution of glue on the surface of the glued products. The purpose of the invention is to optimize the distribution of adhesive and increase the strength of the adhesive joint. The goal is achieved by the fact that in the method of gluing products by applying to the (glued surfaces of phosphate glue, the applied glue is first subjected to vibration with an amplitude of 0.2-0.35 mm and a frequency of 100,600 col./min 1-5 min and then with an amplitude of 0 , 1-0.3 mm and a frequency of 25006000 col./min 0.5-2 minutes When exposed to vibration on an inorganic glue of colloidal nature, such as glue on an aluminum-chromophosphate bond, occurs on the one hand, the contacts are compacted,

393

which increases the density of the composition and, on the other hand, during vibration, a part of the composition is removed, the thickness of the adhesive plane decreases, which also increases the ultimate strength. Due to the fact that at the first stage it is important to increase the formation of contacts at the aggregate level, first vibrating in a soft mode with a frequency of 100-600 numbers / min and an amplitude of 0.2O, 35 mm is applied for 1-5 minutes depending on from the initial density of the adhesive, then after the formation of strong contacts, a part of the liquid phase should be removed from the area of the adhesive layer, for which high-intensity vibrations are applied for 0.5-2 minutes with an amplitude of 0.10, 3 mm and a frequency of 2500-6000 col./ min. In addition, under the influence of vibration in the phosphate glue, excretion Doi phase newly formed hydrates, which also increases the density of the composition of the adhesive.

In tab. Figure 1 shows the compositions of phosphate-filled adhesives used for bonding.

84

Example. 1 defatted steel plates and beams of concrete nano with phosphate glue, connect the glued surfaces, clamp into a pressure device and vibrate in two presses: first in a soft mode with a frequency of 100-600 kop / mission and amplitude 0.2-0 , 35 mm during the initial thickness of the adhesive, and then for 0.52 minutes, oscillations with an amplitude of 0.1–0.3 mm and a frequency of 25006000 col./min are applied.

In tab. 2 shows the gluing characteristics of the proposed method.

In tab. 3 shows the shear strength of the materials to be bonded with dual-frequency vibration.

Thus, the proposed method provides increased strength of the adhesive joint.

Table 1

Aluminum Chromophosphate Binder Phosphoric Acid Ground Sand Kaolin Water

Corundum Electrofusion Alumina

68

itO

0 60 20

85 2

f I

invention formula

The method of gluing products by applying phosphate glue to the glued surfaces, about t and t. so that, in order to optimize the distribution of glue and increase the strength of the bonding seam, the applied glue is first subjected to vibration with an amplitude of 0.2-0.35 mm and

4 T a b i c a 2

28

62 96

70,116

ten

40

35 80

90

Table 3

a frequency of 100-600 col./min 1-5 min and then with an amplitude of -O, 1-0.3 mm and a frequency of 2500.-6000 col./min 0.5-2 min.

Sources of information taken into account in the examination

1. USSR author's certificate №, cl. C 09 J 5/00, 19752, MM Sychev Inorganic adhesives. L., Khimi, 1972, pp.62-80 (prototype).

Claims (1)

Claim The method of gluing products by applying phosphate glue to the glued surface, characterized in that, in order to optimize the distribution of glue and increase the strength of the adhesive joint, the applied adhesive is first subjected to vibration with an amplitude of 0.2-0.35 mm and a frequency of 100-600 counts / min 1-5 min and then with an amplitude of 0.1-0.3 mm and a frequency of 2500-6000 counts / min 0.5 “2min.