SU49198A1 - A method of making an artificial technical semi-shaft for weaving machines - Google Patents

Description

It is known to manufacture leather substitutes from a mixture of fibrous materials of plant or animal origin, rubber, and the usual ingredients of rubber compounds, such as sulfur, resin, accelerators, etc. This mixture is produced by rolling a plate of the required thickness, which is then pressed. and drying. At the same time, a triple alternation of drying and pressing operations is also known with gradually increasing, its temperature in the range of up to 100.

In order to manufacture a substitute for a semi-shaft suitable for its own properties for producing weaving races, the author proposes to use a roller grinding fiber with moisture before mixing it with rubber 40-45%, and the plates should be left after hot pressing. for 12-24 hours to fix the vulcanization process.

Example. Vegetable fiber (linen, cotton), obtained by rolling, half-mass, or pulverized at 40-50 Schopper-Riegler, is dewatered using conventional scrubbing or other installations for the dehydration of the fiber, roll-grinding.

In the case of application for the development of artificial technical racing semi-shaft vegetable fiber is not in its pure form, but mixed with animal fiber, the roll grinding of each of these types of fiber is carried out separately and before dewatering they are mixed in a mass pool.

Dehydrated fiber enters the hydraulic presses, where there is simultaneously an additional squeezing of moisture and briquetting the fiber. The resulting briquettes (pellets) are passed through the top for the smoothing, and the moisture content of the fluff fiber is adjusted to 40-45; by appropriate drying. The dried fiber is moistened with slightly organic solvents, for example, gasoline, dichloroethane, etc., then the fiber, rubber solution (at the rate of 18–20 /) rubber per 100 kg of fiber with a moisture content of 12–15 is set into the mixer (mixer). "), Resins, sulfur, zinc oxide and accelerators. The process of mixing all of these ingredients continues until a homogeneous mass is obtained. The latter, after unloading it from the mixer, is briquetted and subjected to 3-4 folds to obtain a plate of a certain size and thickness of 4 mm. The plate obtained after rolling is subjected to a first drying at a temperature of 35 ° and to a cold pressing on a gpdravlcheskom press. Then the plate is subjected to a second drying at a temperature of 60 ° and pressing (after drying) on a hot hydraulic press at a temperature of 70 °. After this pressing, the plate is subjected to a third drying at a temperature of 80 and pressing at the same temperature. After the first hot pressing, the plastic gets a 12-hour bedding before entering the third drying, and after the second hot pressing -24-hour bedding before entering the warehouse or sorting. Laying down occurs in piles as tall as a man.

The subject matter of the invention.

Claims (3)

1. A method of manufacturing an artificial technical semi-shaft for racing by kneading ground and dried fibrous material with rubber solution and other ingredients of rubber compounds, rolling the resulting plastic mass into plates and curing them by triple alternating drying and pressing operations at gradually increasing temperature up to 100 , characterized in that the vulcanizable on the above plate is subjected to staying for 12-24 hours after hot pressing: for iksirovani vulcanization process. 2. Acceptance of the method according to claim 1, characterized in that vegetable fiber is used, for example, flax or cotton roll grinding, which is dried before mixing it with the cementing material to a moisture content of 40-45; 3. The change of the above in paragraphs. 1 and 2, characterized in that the milled vegetable fiber is mixed in a mass pool before dehydration and drying with ANIMAL 1 fiber with conventional roll grinding.