62results about How to "Fast paint removal" patented technology

The invention relates to a polyester enamelled wire enamel removing process. The process includes following steps: 1), adding an enamel removing agent into an alkaline liquid tank, heating enamel film treatment temperature of a polyester enamelled wire, wherein the enamel removing agent is a sodium hydroxide and / or potassium hydroxide inorganic alkaline solution of 10-40% in mass concentration; 2), pumping the enamel removing agent in the alkaline liquid tank into the bottom of an enamel removing bucket with a stirring paddle, and placing the polyester enamelled wire to be subjected to enamel removing into the enamel removing bucket; 3), starting stirring after overflowing, and enabling rotating speed to be 30-300 rpm, wherein a shedding enamel film overflows along with the enamel removing agent from an overflowing tank at the top of the enamel removing bucket and flows into a filtering bucket; 4), separating the shedding enamel film from the enamel removing agent in the filtering bucket, wherein the enamel removing agent continues entering the alkaline liquid tank. The invention further relates to a polyester enamelled wire enamel removing device. The polyester enamelled wire enamel removing process and device is convenient to operate, wide in application range, good in enamel removing effect, free of volatilization, little in metal base material corrosion and capable of realizing mass enamel removing.

The invention discloses an electrolytic paint-stripping agent. The electrolytic paint-stripping agent comprises 5-55wt% of a paint-stripping main agent, 8-25wt% of a cosolvent, 3-15wt% of a penetrating agent, 3-5wt% of conductive salt and1-5wt% of a surfactant. The electrolytic paint-stripping agent is high in paint-removing speed, so that an electrophoretic paint film can be quickly removed fromthe surface of a workpiece; the paint-stripping agent does not corrode the workpiece; the paint-stripping agent does not contain toxic and harmful substances and has low toxicity to a human body, so that the personal safety of an operator is guaranteed, treatment on wastewater after paint stripping is simple, and environment friendliness is achieved.

The present invention is green alkaline paint remover for eliminating coating from electronic circuit board and its preparation and usage, and belongs to the field of paint remover technology. The paint remover consists of NaOH in 40-150 g / L, surfactant in 0.5-50 g / L, additive in 0-50 g / L, corrosion retardant 0.1-2.5 g / L, and water for the rest. It is prepared through mixing and heating at 50-80 for dissolving completely. When the paint remover is used, the electronic circuit board is soaked in the paint remover and heated at 50-100 deg.c for 10-60 min to eliminate its paint layer. The present invention has the advantages of low cost, fast paint eliminating speed, low toxicity, use safety and capacity of being used repeatedly.

The invention relates to a paint stripper used for removing metal, especially removing old paint films on the surface of aluminum alloy, and also relates to a preparation method of the paint stripper. The paint stripper is characterized by consisting of the following components according to parts by weight: 70-75 parts of dichloromethane, 1-5 parts of turpentine, 0.1-0.8 part of titanium dioxide,15-20 parts of phenol, 0.1-0.3 part of defoamer NXZ, 0.2-0.9 part of Octylphenols polyoxyethylene ether, 0.6-1.2 part of hydroxyethyl celluloses, 0.8-3parts of corrosion inhibitor A-40, 1-1.4 parts of water, 0.3-0.8 part of paraffin, 1-2 parts of Vaseline, 0.01-0.1 part of corrosion inhibitor AMP-95 and 1-2 parts of deodorant. The paint stripper is applicable to depriving metal of various old paint films, characterized by quick paint stripping speed, high construction safety, small toxicity, mild gas and the like. Especially, the product has no corrosion to aluminum alloy.