The present disclosure relates to a wheel hub unit of a motor vehicle and to a method for producing such a wheel hub unit. The wheel hub unit includes a wheel hub and a contact flange firmly connected to the wheel hub. The contact flange includes a plurality of fastening elements for fastening a wheel rim, as well as a contact surface which is intended to come into mechanical contact, at least in part, with a brake hat of a brake disk when the brake disk is in the mounted state. At least part of the contact surface is provided with a thermally insulating coating. Alternatively, the entire contact surface is provided with the thermally insulating coating.

The present disclosure includes carbon-carbon composite articles having oxidation protection coatings for limiting thermal and catalytic oxidation reactions and methods for applying oxidation protection coatings to carbon-carbon composite articles.

The present disclosure includes carbon-carbon composite articles having oxidation protection coatings for limiting thermal and catalytic oxidation reactions and methods for applying oxidation protection coatings to carbon-carbon composite articles.

The purpose of the present invention is to provide a charged particle beam device that exhibits high performance due to the use of vanadium glass coatings, and to provide a method of manufacturing a component for a charged particle beam device. Specifically provided is a charged particle beam device using a vacuum component characterized by comprising a metal container, the interior space of which is evacuated to form a high vacuum, and coating layers formed on the surface on the interior space-side of the metal container, wherein the coating layers are vanadium-containing glass, which is to say an amorphous substance. Coating vanadium glass onto walls of a space where it is desirable to form a high vacuum, for example walls in the vicinity of an electron source, reduces gas discharge in the vicinity of the electron source, and the getter effect of the coating layer induces localized evacuation and enables the formation of an extremely high vacuum, even in spaces having a complex structure, without providing a large high-vacuum pump.

The purpose of the present invention is to provide a charged particle beam device that exhibits high performance due to the use of vanadium glass coatings, and to provide a method of manufacturing a component for a charged particle beam device. Specifically provided is a charged particle beam device using a vacuum component characterized by comprising a metal container, the interior space of which is evacuated to form a high vacuum, and coating layers formed on the surface on the interior space-side of the metal container, wherein the coating layers are vanadium-containing glass, which is to say an amorphous substance. Coating vanadium glass onto walls of a space where it is desirable to form a high vacuum, for example walls in the vicinity of an electron source, reduces gas discharge in the vicinity of the electron source, and the getter effect of the coating layer induces localized evacuation and enables the formation of an extremely high vacuum, even in spaces having a complex structure, without providing a large high-vacuum pump.

A manufacturing process of a heat-resisting glass or enamel coating of a thermally insulated container chamber is described. The process comprises selecting a thermally insulated metal container body, and performing sand blasting to a chamber surface of the body such that the chamber surface becomes a rough surface. The process comprises spraying a glass or enamel glazing material on the rough surface of the body and drying the glazing material on the rough surface. The process comprises placing a dried body on a bracket and sintering the dried body. After sintering is performed, the process comprises removing the body from the bracket. Using this disclosure the chemical properties of the glass coating or enamel coating are relatively stable, so corrosion will not occur. Because the thermal expansion and cold contraction are relatively small, the coating is suitable for manufacturing thermally insulated containers such as thermally insulated cups.

A manufacturing process of a heat-resisting glass or enamel coating of a thermally insulated container chamber is described. The process comprises selecting a thermally insulated metal container body, and performing sand blasting to a chamber surface of the body such that the chamber surface becomes a rough surface. The process comprises spraying a glass or enamel glazing material on the rough surface of the body and drying the glazing material on the rough surface. The process comprises placing a dried body on a bracket and sintering the dried body. After sintering is performed, the process comprises removing the body from the bracket. Using this disclosure the chemical properties of the glass coating or enamel coating are relatively stable, so corrosion will not occur. Because the thermal expansion and cold contraction are relatively small, the coating is suitable for manufacturing thermally insulated containers such as thermally insulated cups.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of silicon dioxide (SiO.sub.2); 1 to 10 wt % of boron oxide (B.sub.2O.sub.3); 10 to 20 wt % of at least one of lithium oxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O); 1 to 5 wt % of sodium fluoride (NaF); 1 to 10 wt % of zinc oxide (ZnO); and 20 to 50 wt % of at least one of titanium dioxide (TiO.sub.2), molybdenum oxide (MoO.sub.3), bismuth oxide (Bi.sub.2O.sub.3), cerium dioxide (CeO.sub.2), manganese dioxide (MnO.sub.2), or Iron oxide (Fe.sub.2O.sub.3), which provides an enamel composition with a reduced cleaning time, and facilitates cleaning without soaking in water.

The invention discloses an anti-corrosion coating with low through-hole ratio for steel rebars. The composition of coating includes 45-70 weight percent feldspar powder, 15-30 weight percent borax, 10-20 weight percent calcium tetraborate, 5-15 weight percent fluorspar, 4-8 weight percent clay, 1-10 weight percent adhesion agent, and 1-1.5 weight percent thickener. This invention also discloses a coating method using above-mentioned anti-corrosion coating. The method includes seven steps: 1. dry mixing, 2. wet mixing, 3. pretreatment, 4. coating, 5. baking, 6. sintering, 7. cooling down at room temperature. The coating of this invention has outstanding anti-corrosion resistance, extremely high toughness, and good durability.

The present disclosure includes carbon-carbon composite articles having oxidation protection coatings for limiting thermal and catalytic oxidation reactions and methods for applying oxidation protection coatings to carbon-carbon composite articles.