31results about How to "Meet the processing performance" patented technology

The invention relates to a paint composition, in particular to a low-temperature curing paint used for manufacturing color steel plates and a method for preparing the same. The method comprises the following steps: adding 45 to 60 weight percent of saturated polyester resin, 3 to 5 weight percent of fully-methylated amino resin and 3 to 5 weight percent of partially-methylated amino resin into a reaction kettle; while stirring, adding 3 to 5 weight percent of propylene glycol ether acetate, 2 to 5 weight percent of binary acid dimethyl ester, 2 to 0.5 weight percent of closed cooling catalyst, 0.2 to 0.5 weight percent of open cooling catalyst, 5 to 10 weight percent of trimethyl benzene solvent to the mixture; after stirring the mixture evenly, adding 0.3 to 0.8 weight percent of dispersant to the mixture, and then adding 20 to 40 weight percent of filling pigment and 0.3 to 0.8 weight percent of wax powder while stirring; and after the mixture is dispersed evenly, performing sandingin a sand mill, and then performing paint and color mixing process to obtain the finished product, namely the low-temperature curing color coiled material paint. The method can solve the problems that the prior high-temperature baking curing paint has high curing temperature to cause energy sources waste.

The invention discloses a magneto-rheological polishing device for large-diameter aspheric optical parts, which includes a machine tool, a polishing device, a magnetorheological polishing liquid circulation system for providing stable performance polishing liquid, and the components connected with the above components For the control system, the machine tool has four or more degrees of freedom, and the polishing device is fixed on the machine tool and located directly above the workpiece to be processed on the machine tool. The invention is a magnetorheological polishing device for large-diameter aspherical optical parts with simple and compact structure, low cost, simple control, wide application range and strong processing ability.

The invention belongs to the technical field of galvanized steel sheet production methods, and relates to a finishing withdrawing-straightening tension control method for a deep-draw galvanized steel sheet for guaranteeing the steel sheet performance and the surface quality. According to the technical scheme, the tension set values before and after the finishing withdrawing-straightening are adjusted, and the matching relation between steel plates with different thicknesses and the tension before and after the finishing withdrawing-straightening is adopted, wherein the tension before finishing conforms to the formula: T(strip steel thickness)*(25-30)KN, and the tension after finishing and withdrawing-straightening conforms to the formula: T(strip steel thickness)*(27.5-33)KN. According to the finishing withdrawing-straightening tension control method, the surface quality of the deep-draw galvanized product can be guaranteed, the performance is not greatly affected, the requirement for machining and using performance of a user is met, and the performance aggravating effect brought by increasing the finishing rolling force to guarantee the surface of the deep-draw galvanized product is avoided. The performance judgment amending ratio of the deep-draw galvanized product is greatly reduced, the surface quality and the profit space of the deep-draw galvanized product are greatly improved, the competitiveness of enterprises is enhanced, and considerable economic benefits are brought to the enterprises.