A metal foil pattern layered body of the invention includes a base member; a metal foil including a metal pattern formed by an opening and a metal portion; and a protuberance provided at the metal foil and at a boundary between the opening and the metal portion.

The invention belongs to the technical field of metal micro-forming, and in particular relates to a method for inflating micro-channels. The present invention is aimed at the problems of low process flexibility, single product type, and non-closed structure of the micro-channel when preparing metal micro-channels by micro-plastic forming of ultra-thin metal strips. The present invention uses a method combining numerical simulation and bond rolling experiment to analyze the effect of the hydrogen pressure and bond strength of the metal composite ultra-thin strip after bond rolling on the pore diameter of the micro-channel, and the corresponding relationship between the micro-channel pore diameter and the titanium hydride content, heating temperature, and bond strength of the metal composite ultra-thin strip is obtained. The present invention has no special requirements on molds, wide selection of metal materials, low requirements for equipment capabilities; closed tubular micro-channel products with different pore diameters and different distributions can be prepared according to requirements, with rich product categories and high process flexibility.

The invention belongs to the technical field of metal micro-forming, and in particular relates to a method for inflating micro-channels. The present invention is aimed at the problems of low process flexibility, single product type, and non-closed structure of the micro-channel when preparing metal micro-channels by micro-plastic forming of ultra-thin metal strips. The present invention uses a method combining numerical simulation and bond rolling experiment to analyze the effect of the hydrogen pressure and bond strength of the metal composite ultra-thin strip after bond rolling on the pore diameter of the micro-channel, and the corresponding relationship between the micro-channel pore diameter and the titanium hydride content, heating temperature, and bond strength of the metal composite ultra-thin strip is obtained.

A metal foil pattern layered body of the invention includes a base member; a metal foil including a metal pattern formed by an opening and a metal portion; and a protuberance provided at the metal foil and at a boundary between the opening and the metal portion.

A metal foil pattern layered body of the invention includes: a base member; a metal foil including a metal foil pattern formed by an opening and a metal portion; and a protuberance provided at the metal foil and at a boundary between the opening and the metal portion.

A copper foil composite comprising a copper foil and a resin layer laminated thereon, satisfying an equation 1: (f.sub.3t.sub.3)/(f.sub.2t.sub.2)=>1 wherein t.sub.2 (mm) is a thickness of the copper foil, f.sub.2 (MPa) is a stress of the copper foil under tensile strain of 4%, t.sub.3 (mm) is a thickness of the resin layer, f.sub.3 (MPa) is a stress of the resin layer under tensile strain of 4%, and an equation 2: 1<=33f.sub.1/(FT) wherein f.sub.1 (N/mm) is 180 peeling strength between the copper foil and the resin layer, F(MPa) is strength of the copper foil composite under tensile strain of 30%, and T (mm) is a thickness of the copper foil composite, wherein a Sn layer having a thickness of 0.2 to 3.0 m is formed on a surface of the copper foil on which the resin layer is not laminated.

Process for producing cathodes Process for producing cathodes comprising a cathode material comprising (A) at least one lithiated transition metal mixed oxide, (B) carbon in an electrically conductive modification, (C) at least one binder,
and also (D) at least one film,
wherein (a) a mixture comprising lithiated transition metal mixed oxide (A), carbon (B) and binder (C) is applied to film (D), (b) dried, (c) compacted to such an extent that the cathode material has a density of at least 1.8 g/cm.sup.3 to obtain a compacted blank and (d) after compaction as per (c) thermally treated at a temperature in the range from 35 C. below the melting point or the softening point of binder (C) to a maximum of 5 C. below the melting point or the softening point of binder (C).

An austenitic stainless steel foil 2 with a thickness equal to or less than 300 m is disposed to face a punch 12, and the stainless steel foil 2 is subjected to drawing in a state in which an annular region 2a of the stainless steel foil 2 that is in contact with a shoulder portion 12d of the punch 12 is set to a temperature up to 30 C. and an external region 2b outside the annular region 2a is set to a temperature of from 40 C. to 100 C.

An austenitic stainless steel foil 2 with a thickness equal to or less than 300 m is disposed to face a punch 12, and the stainless steel foil 2 is subjected to drawing in a state in which an annular region 2a of the stainless steel foil 2 that is in contact with a shoulder portion 12d of the punch 12 is set to a temperature up to 30 C. and an external region 2b outside the annular region 2a is set to a temperature of from 40 C. to 100 C.

A titanium alloy metal sheet is provided and heated to a superplastic forming temperature. A die has a plurality of housing forming areas each corresponding to one of the medical device housing portions. The heated titanium alloy metal sheet is forced onto the die and over each one of the plurality of housing forming areas, thereby superplastically forming a workpiece comprising a plurality of integrally formed implantable medical device housing portions.