MONOLITHIC STRUCTURAL UNIT MANUFACTURING METHOD AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2025 - IPC C03B37/00 H01J9/00 

FIELD: performing operations.

SUBSTANCE: group of inventions relates to the optical, electronic industries and can be used in the fibre glass products manufacturing, in particular polycapillary, fibre optic and microchannel units, filtration devices for fine cleaning and separation of various media, as well as for vitrification of materials. Proposed device comprises muffle kiln, sintering chamber accommodating glass flask with block of blanks and system to evacuate gases from said flask. At that, muffle furnace is three-zone, having upper, middle and lower heating zones. At that, middle heating zone is made with possibility of local axisymmetric heating of structural unit material to softening temperature. Sintering chamber is made in the form of a movable part connected to a linear displacement module, which is configured to provide its uniform movement inside the fixed muffle furnace. Monolithic structural unit manufacturing method consists in the workpieces block assembly from the separate structural elements, the workpieces block placement in the glass flask, placing the flask with the block of workpieces into the inner cavity of the sintering chamber, heating the sintering chamber, pumping gas from the flask during heating and sintering, isostatic pressing with subsequent cooling. wherein structural unit material is subjected to local axially symmetric heating to softening temperature to allow local forming, that is, sintering of bulb and unit of blanks into monostructure under external pressure. Before local axisymmetric heating of the material of the structural unit, the bulb is sealed in the region of inductive heating. Isostatic pressing is performed by means of uniform linear movement of the block inside the fixed three-zone muffle furnace from the upper heating zone to the lower one.

EFFECT: increase in the monolithic structural blocks manufacturing quality due to the identical pressing temperature modes along the blocks entire length and excluding the possibility of gas bubbles formation in its monolithic structure, which in turn allows to increase the equipment productivity and increase the amount of non-defective products output by reducing the number of structural defects along the boundaries of the junction of separate elements.

6 cl, 3 dwg