CZ75393A3 - Process for producing a corrugated or flat plate for the production of a lorry or a container - Google Patents

Abstract

A method for producing a corrugated plate (8) or a flat plate (9) for making a lorry or container is such that the flax fiber material (3) and the colored calico (4) are immersed in an adhesive (1) consisting of phenol, formaldehyde, ammonia water, hardeners, luster, calcium carbonate, zinc oxide and talc. Thereafter, the impregnated flax fiber material (3) and the colored calico (4) are dried in the oven (5) and brought to the desired size, hot pressed in a heated press (7) and cooled.

Description

BACKGROUND OF THE INVENTION

The board parts of trucks are mostly made of wood, so it is impossible to give them resistance to heavy loads and to acids or alkalis. In addition, such boards do not have a long service life and need to be replaced after some time. As far as containers are concerned, they are made of sheet metal and are therefore easily attacked by corrosion and short-lived.

The main object of the present invention is to provide a method for producing a corrugated or flat plate for manufacturing a lorry or container that has high strength and therefore can be loaded with heavy weights. Moreover, such a plate should be acid and alkali resistant and stable at elevated temperatures.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION The present invention relates to a process for producing a corrugated or flat plate for manufacturing a truck or container, comprising immersing the flax fiber material and colored calico in an adhesive consisting of phenol, formaldehyde, ammonia water, hardener, the gloss, calcium carbonate, zinc oxide and talc, the flax fiber impregnated material and the colored calico are dried, adjusted to the desired size, processed by hot pressing and cooled.

The obtained corrugated or flat board has high strength, acid and alkali resistance, high heat resistance, wear resistance, insulating ability, shade brightness and which optionally contains color patterns.

Overview is not shown in the drawings

FIG. 1 schematically illustrates an apparatus for carrying out operations according to the invention, comprising applying an adhesive to a flax fiber material and calico, and drying and cooling the impregnated product.

FIG. 2 shows an apparatus in which the filament and calcic material is dimensionally treated in the process according to the invention.

FIG. 3 shows the manufacture of a corrugated board in a heated press.

Fig. 3a shows the production of a flat plate in a heated press.

Fig. 4 shows a perspective view of a corrugated board according to the invention.

Fig. 4A shows a side view of the corrugated board of Fig. 4.

FIG. 4B is a magnified view of the corrugated board segment of FIG. 4A;

FIG. 5 shows a second preferred embodiment of a corrugated board according to the invention.

Fig. 5A shows a side view of the corrugated board of Fig. 5.

FIG. 6 shows a third preferred embodiment of a plate according to the invention.

Fig. 6A shows a side view of the plate of Fig. 6.

Fig. 6B shows an enlarged fragment of the plate of Fig. 6A.

FIG. 7 shows a fourth preferred embodiment of a plate according to the invention.

Fig. 7A shows a side view of the plate of Fig. 7.

Fig. 8 shows a view of an application of a board made by the method according to the invention.

Fig. 9 shows a view of another application of a board produced by the method of the invention.

fMoveci & hi 'will be invented

The invention may be practiced in a number of different ways, but the following description is directed to the embodiments shown in the accompanying drawings. However, it is to be understood that these embodiments are illustrative in nature and are not intended to limit the scope of the invention in any way.

The method of the invention as shown in Figures 1, 2 and 3 comprises the following steps:

First, mixed phenol (C _g H ₅ OH), which supplies the plate heat resistance and insulation ability with formaldehyde (CH ₂ O), which provides corrosion resistance, ammonia water (NH? OH), a hardener, an agent for delivering gloss ( 3 MgSiOg H ₂ SiO ₃ ), calcium carbonate, zinc oxide to impart good flow properties and talc (3 MgSiO ₃ .H ₂ SiO ₃ ), to form adhesive 1, which is poured into tank 2.

A suitable amount of raw linen material 2 ^{and a} piece of colored calcicum 4 are immersed in a tank 2, the impregnated linen material and calico are passed to a drier 5 and then wound onto a roll.

After cooling, the linen material 2 ^{and the} colored calico are cut to the desired size in the cutting machine 6 and fed to a heated press 7 in which it is pressed to the desired shape. After cooling, the linen material 2 is firmly bonded to the colored calculus 4 to form a resulting corrugated board 2 or flat board 9, which can be used in the manufacture of trucks or containers.

Based on numerous experiments, it has been found that a suitable adhesive 1 preferably has the following composition:

phenol 47.2 to 52.5 % formaldehyde 40.5 to 51.5 % ammonia water 2.3 to 3.2 % hardener 2 to 3.6 % delivery agent polish 1.5 to 2.1 % calcium carbonate 3 to 3.8 % zinc oxide 1.5 to 2.6 % talc 2.8 to 3.1 %

A preferred embodiment of the invention is described below.

up to 41.5 kg of linen material and 40 to 43 kg of calico are immersed in 100 to 120 kg of adhesive. The linen material and calico are pressed for 11 minutes at 180-200 ° C or 8 minutes at 200-230 ° C or 6 minutes at 230-260 ° C and then cooled. The press used must have a capacity of at least 50 kN.

Corrugated or flat sheets can be obtained as described above. The corrugated boards may have the form shown in Figures 4, 5 or 6. The surface of the corrugated board may be monochromatic or may contain color patterns (see Figure 7). Figures 8 and 9 show examples of articles that can be made from sheets made in accordance with the present invention. Due to the glue that contains phenol and calcium carbonate, which give the final product heat resistance and insulating properties, formaldehyde, which imparts corrosion resistance, ammonia water, which ensures easy formability, a hardener that provides good abrasion resistance, providing a brightening effect, zinc oxide, providing good rheological properties that allow even adhesive to be applied to the surface of the linen material, and the talc and talc that gives the product smoothness and desiccant will have a corrugated or flat plate made according to the invention Acids and alkalis, heat resistance, wear resistance, insulation properties and rigidity.

In addition, the sheets produced by the process according to the invention have a smooth and bright surface, optionally containing color patterns.

The method according to the invention therefore makes it possible to overcome the disadvantages of materials such as wood or steel sheet, which have hitherto been used in the production of boards for use in trucks or containers.

PK0? 53-33

Claims (5)

PATENT CLAIMS Method for producing a corrugated or flat board for the production of a lorry or container, characterized in that the flax fiber material and colored calico are immersed in an adhesive consisting of formaldehyde, ammonia water, hardener, luster, calcium carbonate, zinc oxide the impregnated flax fiber material and color dried, adjusted to the desired size, processed from phenol, imparting and talc, calico by hot pressing and cooled to form a corrugated or flat plate having high strength, acid and alkali resistance, high heat resistance, wear resistance, insulating ability, shade brightness and optionally including color patterns. Method for producing a corrugated or flat plate for manufacturing a lorry or container according to claim 1, characterized in that the adhesive has the following composition: phenol 47.2 to 52.5% ammonia water hardener gloss delivery agent calcium carbonate zinc oxide talc formaldehyde 40.5 to 51.5% 2.3 to 3.2 % 2 to 3/6 % 1.5 to 2.1 % 3 to 3.8 % 1/5 to 2.6 % 2.8 to 3.1 % 3. A process for producing a corrugated or flat panel for manufacturing a truck or container according to claim 1, wherein 100 to 120 parts by weight of adhesive, 38 to 41.5 parts by weight of flax fiber material and 40 to 43 parts by weight are used. kalika. WHAT CO i— Method for producing a corrugated or flat plate for manufacturing a truck or container according to claim 1, characterized in that the hot pressing is carried out for 11 minutes at 180 to 200 ° C or 8 minutes at 200 to 230 ° C or 6 minutes at 230 to 260 ° C and the applied force in the hot pressing stage is at least 50 kN. A method for producing a corrugated or flat panel for manufacturing a lorry or container according to claim 1, characterized in that the panel is processed to any desired shape and its surface is evenly covered with adhesive.