METHOD OF MATRIX MANUFACTURE FOR MOLDING OF ITEMS FROM POLYMER MATERIALS WITH VACUUM METHOD Russian patent published in 2008 - IPC B29C51/36 B29C33/38 

FIELD: technological processes.

SUBSTANCE: first part of matrix is made according to template, on which the first layer is coated made of glass tissue, which is soaked with thermal resistant epoxide resin. Then several layers of glass tissue are coated, which are soked with regular epoxide resin, after these layers are dried out, in prepared part of matrix thru openings are drilled on the whole surface in the amount necessary for subsequent vacuum molding. Internal form of second part of matrix is manufactured on the basis of internal side of first part of matrix. On the first part, after it has been treated with lubricant, strips of elastic material connected between each other that have previously been treated with lubricant are laid and fixed above vacuum openings. They form vacuum channels in the second internal part of matrix, and in the point of their crossing - vacuum outlet for connection to vacuum system, through which vacuum forming is done. Afterwards on internal first surface of matrix with strips laid on it with vacuum outlet, several layers of glass tissue are applied, which are soaked with regular epoxide resin. After its hardening on the second part of matrix it is separated from the first, used elastic material is removed, both sides of matrix are degreased and adhered to each other with the help of epoxide resin.

EFFECT: provision of technological and economical method of manufacturing matrix for molding of items of any configuration from polymer materials with method of vacuum moldings and manual molding with application of epoxide resins and glass tissues.