3results about How to "Reduce bond strength" patented technology

The present application relates to a kind of acrylic polymer emulsion, its raw material composition and its preparation method and application, belong to building coating technical field.It includes the following weight parts of raw materials: pre-emulsion I 15-25 parts, pre-emulsion II 45-55 parts, emulsifier solution 10-20 parts, initiator solution 1-10 parts, post-processing solution I 1-5 parts, post-processing solution II 1-5 parts, adipohydrazide 0.5-2 parts, triethanolamine 1-5 parts.The acrylic polymer emulsion prepared in the present application has strong cohesion, elongation and elasticity, the soft porcelain prepared using the emulsion is not easy to break or remain when demolding after curing, thereby effectively solving the adhesion problem of soft porcelain on silica gel mold, and the acrylic polymer emulsion prepared in the present application itself has low odor, significantly reduces the peculiar smell of soft porcelain finished product, improves environmental protection and use experience.

The application discloses an ultrasonic-assisted abrasive jet rust removal device and a rust removal method, and relates to the technical field of rust removal. The ultrasonic-assisted abrasive jet rust removal device comprises an abrasive jet system and a longitudinal ultrasonic vibration workbench. In the abrasive jet system, a booster pump and a speed regulating valve are connected with a high-speed water inlet of a nozzle through a hydraulic pipeline, an abrasive bin and an abrasive valve are connected with an abrasive inlet of the nozzle through an abrasive pipeline, the nozzle is installed at the end of a mechanical arm, and the longitudinal ultrasonic vibration workbench is vertically installed below the nozzle. When in use, an ultrasonic generator is started, a workpiece is vibrated through a clamp, the pose of the nozzle is controlled by using the mechanical arm, pump pressure, water flow rate and abrasive flow rate are adjusted, and the abrasive jet is used to impact and strip rust. The application improves the stripping and removal efficiency of rust through the synergistic effect of the longitudinal ultrasonic workbench and the abrasive jet, reduces the pressure demand on the jet equipment, and reduces the wear of the nozzle.