65results about How to "Fix unstable performance" patented technology

The invention relates to a ceramic bond with low refractoriness and high strength. The ceramic bond comprises the following components in percentage by weight: 25%-45% of silicon dioxide, 15%-25% of ultrafine silicon dioxide with the particle size of not more than 5 microns, 14%-20% of sodium tetraborate, 8%-13% of aluminum oxide, 4%-8% of lithium carbonate, 5%-10% of zinc oxide, 1%-2% of magnesium oxide, 0%-1% of barium carbonate and 3%-5% of titanium oxide. As the ultrafine silicon dioxide is introduced into the component, the strength of the ceramic bond is improved and the refractoriness is simultaneously reduced. In addition, the invention further provides a preparation method of the ceramic bond and a method for manufacturing a ceramic bond grinding tool by utilizing the ceramic bond.

The invention belongs to the field of preparation of composite fibers and particularly relates to graphene composite PP fibers and a preparation method thereof. The graphene composite PP fibers comprise the following matters: grapheme, sodium polyacrylate, a cationic surface active agent, a filler, microcrystalline celluloses, a solvent, silica gel and plant polyphenol, wherein the filler is one of or a variety of or any quality ratio of aluminum oxide, aluminum powder, titanium dioxide or pyrophyllite powder; the solvent is ethanol or acetone; the grapheme is 3-10 layers of grapheme. The graphene composite PP fibers and the preparation method thereof provided by the invention have the benefit that the comprehensive performance of the PP fiber is effectively improved.

The invention discloses a horizontal constant-speed material receiving device which comprises a first supporting seat, a first connecting seat, a second connecting seat, a second supporting seat, a separating ring, a material distributing rotary disc, a first rolling mechanism, a second rolling mechanism, a first encoding mechanism, a tension mechanism and a second encoding mechanism. The first connecting seat, the second connecting seat and the second supporting seat are all arranged on one side of the first supporting seat, the second connecting seat is located between the first connecting seat and the second supporting seat, the first connecting seat is located between the first supporting seat and the second connecting seat, and the position, close to the right side, of the front end of the first supporting seat is connected with a material distributing rotary column. The material distributing rotary disc is installed at the position, close to the front portion, of the outer surface of the material distributing rotary column. According to various aspects, the problems that the material receiving effect is poor due to the fact that the material receiving speed cannot be adjusted and controlled and the material receiving efficiency is low due to the fact that only one material can be received in an existing scheme can be solved.