4results about How to "Uniform refinement" patented technology

The invention relates to the technical field of electroplating, in particular to an acidic copper plating polishing agent and a preparation method thereof. The acidic copper plating brightening agent is prepared from the following raw materials in parts by mass: 25 to 30 parts of brightening agent, 6 to 8 parts of leveling agent, 40 to 50 parts of wetting agent, 7 to 10 parts of hydroxyethyl cellulose, 8 to 12 parts of collagen and 900 to 930 parts of deionized water. The acidic copper plating polishing agent has excellent technical effects, can be widely applied to the field of copper electroplating, improves the quality of a copper electroplating layer, including glossiness, tensile strength, elongation, hole filling efficiency, uniform plating capacity, through hole deep plating capacity and the like, and meets the requirements of circuit board plated through hole conduction capacity.

The utility model relates to glaze grinding technical field provides a glaze grinding with ball mill, including ball mill main part, support and motor, the both ends of ball mill main part outside are provided with support, and the ball mill main part rotation is arranged between the support, and the end of rear end support is installed with motor, and the motor is connected with the rear end of ball mill main part, and the outside of ball mill main part is provided with the outer sleeve shell, and the top of outer sleeve shell inside is provided with cooling assembly, and the inside of ball mill main part is provided with ball mill cavity, and ball mill cavity is obliquely arranged in the inside of ball mill main part, the utility model discloses the oblique design of ball mill cavity, cooperation ball mill main part rotation, let the grinding ball and glaze reciprocating roll in ball mill cavity. In the rolling process, the frequent and powerful collision, friction of both, greatly improve the grinding efficiency of glaze, can fast glaze processing to the fine degree that meets the process requirement, satisfies the efficient production demand.

The utility model is suitable for stirring ball mill device technical field provides a kind of lower into upper closed type stirring ball mill device, including jar body, pump body and upper sieve plate;The jar body top installs discharge bin, slurry outlet is opened on the discharge bin, the valve is arranged at the bottom of jar body, the pump body is connected on valve, the jar body has grinding cavity, the central shaft is arranged in grinding cavity, a plurality of stirring rods are fixed on the central shaft, the upper sieve plate is installed on the top of jar body, the ball adding hole is arranged on the upper sieve plate, the plug can be detachably connected on the ball adding hole, the main shaft hole is opened in the center of the upper sieve plate, the central shaft passes through main shaft hole, the discharge notch is further provided on the upper sieve plate.The utility model solves the problem of ball loss, loss, subsequent separation work complexity and cost increase caused by the fact that the grinding ball is discharged together with slurry when the existing lower into upper stirring ball mill discharges.

The invention discloses a nickel-based alloy powder for additive manufacturing and a preparation method thereof, belonging to the technical field of additive manufacturing powder preparation. The alloy powder comprises 60-80 parts by weight of spherical Ni60 powder with a particle size of 70-120 microns and 40-20 parts by weight of tungsten carbide with a particle size of 20-100 nanometers. The nickel-based alloy powder for additive manufacturing of the invention is mixed using magnetic stirring, and the obtained powder can improve the relevant properties of laser deposited additive parts, reduce the occurrence of pores and cracks in the coating, and has a wide range of applications.