초록 ▼

A titanium honeycomb 1 is manufactured by using titanium or titanium alloy as the base material 2, performing diffusion bonding in a striped pattern with heating and pressing, and elongating the stacked base materials 2 . Further, a powder of rare earth oxide, such as yttrium oxide with a particle s

A titanium honeycomb 1 is manufactured by using titanium or titanium alloy as the base material 2, performing diffusion bonding in a striped pattern with heating and pressing, and elongating the stacked base materials 2 . Further, a powder of rare earth oxide, such as yttrium oxide with a particle size of, for example, 30 .mu.m or less, is employed as the parting agent 5. The oxide is mixed in an amount of 1% by weight or more with the organic binder vaporizing at 350.degree. C. A parting agent is applied at a thickness of 0.3-30 .mu.m.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of manufacturing honeycomb structures made of titanium or a titanium alloy and consisting of a planar assembly of a plurality of equihexagonal hollow columnar cells divided by cell walls of titanium or the titanium alloy as a base material, said method comprisi

[ What is claimed is:] [1.]1. A method of manufacturing honeycomb structures made of titanium or a titanium alloy and consisting of a planar assembly of a plurality of equihexagonal hollow columnar cells divided by cell walls of titanium or the titanium alloy as a base material, said method comprising the steps of:forming foil sheets of titanium or the titanium alloy having a thickness no greater than 200 .mu.m;applying a parting agent comprising at least 1 wt. % of rare earth oxide powder having a particle size no greater than 30 .mu.m and a standard free energy of formation lower than that of titanium or the titanium alloy and less than 99 wt. % of a binder of an organic material which does not react with the foil sheets at a temperature of 350.degree. C. or higher and volatilizes at a temperature of less than 350.degree. C. in a thickness of from 0.3 to 30 .mu.m onto a surface of the foil sheets in a striped pattern with a predetermined pitch and width such that the surface of the foil sheets has exposed portions in a striped pattern;stacking a plurality of the foil sheets such that the exposed portions of adjacent foil sheets are shifted by a half pitch from one another;performing diffusion bonding of the stacked foil sheets at their exposed portions under sufficient heat and pressure such that titanium and/or alloy constituents diffuse and move between the exposed portions and form diffusion bonded portions and non-bonded portions; andexpanding the stacked foil sheets by pulling the top and bottom of the stacked foil sheets in opposite directions by a tensile force to cause the foil sheets to separate along edges of diffusion bonded portions and non-bonded portions thereby forming a honeycomb structure.