Method and apparatus for forming ceramic surface layers

• US 2,987,416 A
• Filed: 07/23/1956
• Issued: 06/06/1961
• Est. Priority Date: 07/23/1956
• Status: Expired due to Term

• Current Assignee: Hubertus Wessel
• Original Assignee: Hubertus Wessel
• Inventors: HUBERTUS WESSEL
• Application Number:
  US03/599,371
• Time in Patent Office: 1,779 Days
• US Class Current: 427/543
• CPC Class Codes: C04B 12/04 Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate cements alkali metal silicates per se, their preparation C01B33/32; ammonium silicates per se, their preparation C01C1/00
• CPC Class Codes: C04B 14/06 Quartz; Sand
• CPC Class Codes: C04B 14/10 Clay sepiolite C04B14/042; grog C04B18/025
• CPC Class Codes: C04B 14/104 Bentonite, e.g. montmorillonite
• CPC Class Codes: C04B 14/16 porous, e.g. pumice
• CPC Class Codes: C04B 18/023 Fired or melted materials
• CPC Class Codes: C04B 18/141 Slags
• CPC Class Codes: C04B 2111/00482 Coating or impregnation materials
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C04B 28/26 Silicates of the alkali metals
• CPC Class Codes: C04B 41/009 characterised by the material treated
• CPC Class Codes: C04B 41/5001 with carbon or carbonisable materials
• CPC Class Codes: C04B 41/5025 with ceramic materials copper oxide or solid solutions thereof C04B41/5074
• CPC Class Codes: C04B 41/5089 Silica sols, alkyl, ammonium or alkali metal silicate cements
• CPC Class Codes: C04B 41/52 Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
• CPC Class Codes: C04B 41/70 for obtaining at least two superposed coatings having different compositions
• CPC Class Codes: C04B 7/32 Aluminous cements
• CPC Class Codes: Y02W 30/91 Use of waste materials as fillers for mortars or concrete

Claims

1. A METHOD OF FORMING ON A SUPPORT A CERAMIC SURFACE LAYER, COMPRISING, IN COMBINATION, THE STEPS OF APPLYING TO THE SURFACE OF SAID SUPPORT AT LEAST ONE INTERMEDIATE LAYER ADAPTED TO HARDEN UPON STANDING AT AMBIENT TEMPERATURE AND COMPRISING A FIRST CERAMIC-FORMING MATERIAL CONTAINING AT LEAST ONE PREBURNED CERAMIC MATERIAL THEREBY ADHERING SAID INTERMEDIATE LAYER TO SAID SURFACE OF SAID SUPPORT, ALLOWING SAID INTERMEDIATE LAYER TO HARDEN, APPLYING TO THE OUTER FACE OF SAID INTERMEDIATE LAYER AN OUTER LAYER OF A SECOND CERAMIC-FORMING MATERIAL ADAPTED TO BE AT LEAST SINTERED BY HEATING, AND HEATING SAID OUTER LAYER SO AS TO AT LEAST SINTER THE SAME, HOWEVER, SUBSTANTIALLY WITHOUT CAUSING LIQUEFACTION OF SAID INTERMEDIATE LAYER, WHEREBY SAID OUTER LAYER IS FIRMLY ADHERED TO SAID INTERMEDIATE LAYER AND SIMULTANEOUSLY A CERAMIC SURFACE IS FORMED ON SAID SUPPORT.