Cryogenic paint removal method and cryogenic paint removal equipment for spraying hangers
A technology for cryogenic paint removal and equipment, applied in metal processing equipment, cleaning methods and utensils, grinding/polishing equipment, etc., which can solve problems such as waste of a large amount of chemical reagents, deformation of hanging tools, air and environmental pollution, etc.
Inactive Publication Date: 2018-03-13
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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Problems solved by technology
[0005] The present invention aims to solve the problems in the prior art, such as deformation of the hanger, incomplete paint removal, waste of a large amount of chemical reagents, air and environmental pollution, etc. A cryogenic paint removal method and cryogenic paint removal equipment for spraying racks using cryogenic technology
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[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0038] A cryogenic paint removal method for spraying racks, which is to place the spraying racks to be cleaned in a closed and constant temperature cryogenic box at -189±5°C for 10-15 minutes, so that the residual paint on the spraying racks is frozen Then crack and fall off, stop freezing; then take out the spraying hanger to be cleaned after cryogenic freezing, and hang it in the cavity of the hook type shot blasting machine, use the projectile beams thrown out to polish the residual paint on the surface of the spraying hanger , Peel off, so as to achieve the purpose of removing residual paint.
[0039] A cryogenic paint removal equipment for spraying hangers, comprising a square-shaped fixed box 1 forming a box opening at the front and a box door 2 for sealing the box opening, and is characterized in that: the inner wall of the box body 1 is provid...
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The invention discloses a method and device for copious cooling paint removal of a spraying hanging tool and belongs to materials cooled through liquefied gas. The method comprises the steps that the spraying hanging tool to be cleaned is placed in a closed constant-temperature copious cooling box with the temperature of -189 + / -5 DEG C for 10 to 15 minutes, after remaining paint is frozen, the remaining paint cracks and falls off, after the freezing operation is stopped and the tool is taken out, the remaining paint on the surface of the spraying hanging tool is removed in a polishing mode through shot beams of a shot blasting machine. The device for copious cooling paint removal of the spraying hanging tool comprises a fixed box body and a box door for sealing a box opening. A liquid nitrogen spray pipe is arranged on the inner wall of the box body. The box door for sealing the box opening is suspended below a sliding way below a building component through a pulley. According to the design of the method and device for copious cooling paint removal of the spraying hanging tool, copious cooling treatment is conducted on the spraying hanging tool, the spraying hanging tool is then treated by the shot blasting machine, the paint removal effect is quite satisfactory, traces of the remaining paint on the spraying hanging tool do not exist, the original form of the hanging tool is not changed at all, and the satisfactory method and device for copious cooling paint removal are used for remaining paint removal on a spraying production line.
Description
technical field [0001] The invention relates to equipment and methods for using liquefied gas cooling materials, in particular to a cryogenic paint removal method and cryogenic paint removal equipment for spraying racks. Background technique [0002] In the paint spraying production line, the workpiece is usually placed on a frame-shaped hanger, and the workpiece is electrostatically sprayed. But, after working for a long time, thick residual paint (epoxy resin) is accumulated and covered on the frame hanger, which affects the electrostatic spraying effect of paint on the production line. Therefore, it is necessary to clean up the residual paint on the hangers on the spraying production line. [0003] The method of cleaning the remaining paint on the surface of the hanger on the spraying production line usually adopts the fire method or the chemical reagent stripping method. The traditional fire burning method, due to the high heat burning residual paint, leads to serious ...
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IPC IPC(8): B08B7/00B24C5/00B24C3/00
CPCB08B7/00B24C1/08B24C3/32
Inventor 赵斌朴宰贤
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD