Patent ID: 6547998
Filing Date: 2003-04-15
Classification: B29C,B29K,B29L,G01N,Y10T

Abstract:
Method for preparation of test bodies for analysis of porous surface layers, which are incorporated by casting in plastic, comprising:a) placing one or more test pieces of the surface layer in a mould introduced into a vacuum chamber, and then lowering the pressure of said vacuum chamber; b) pouring a ready-mixed, liquid casting resin into the mould containing the test pieces; c) letting air into the chamber; d) lifting the test pieces out of the casting resin and allowing an excess of casting resin to drip from the test pieces, and subsequently placing the test pieces in a mould cavity of a hot moulding press; e) filling said mould cavity together with the test pieces with a pulverized resin; and f) applying pressure and heat to the mould cavity for a predetermined period of time, whereupon the test body is ready to be taken out and lapped.