Coating formula of automobile windscreen wiper blades and using method

Abstract

The invention discloses a coating formula of automobile windscreen wiper blades. The coating formula of the automobile windscreen wiper blades is characterized in that the coating formula of automobile windscreen wiper blades is prepared from the following raw materials in percentage by weight: 9% of graphite power, 4.5% of molybdenum disulfide powder, 5% of Teflon GK570, 2.5% of a curing agent 3800 and 7.9% of butanone. The graphite power, the molybdenum disulfide powder, the Teflon GK570, the curing agent and the butanone are mixed and stirred to fully uniform after weighted in proportion, the mixture is sprayed to two surfaces of wiper blade cutting edges by using a spray coating machine, and then, curing is carried out for ten minutes under the condition of 90 DEG C. According to the coating formula of the automobile windscreen wiper blades, the wiper blades after spraying and curing are mounted on a windscreen wiper, then, the windscreen wiper is mounted on a grooming table framefor grooming, the effect is good, waterline does not exist, grooming scores are ten scores (full score), and no screaming exists under high-temperature grooming. The requirement is still met after durable grooming for 500 thousand times.

Description

technical field [0001] The invention belongs to the field of coating formulations, in particular to a coating formulation and application method of a natural rubber windshield wiper blade for automobiles. Background technique [0002] The car wiper is an important part used to remove rainwater and pollutants from the car windshield to ensure a clear view when driving a car. The wiper blade is the executive part on the wiper that wipes the windshield. The requirements for it are clean, no abnormal noise, and long service life. [0003] The wiper blade is vulcanized by natural rubber or synthetic rubber. In the case of no coating, the friction between the wiper blade and the glass is very large, and the wiper motor cannot be driven. The surface is coated with a friction-reducing coating. [0004] The performance of the coating determines the wiping performance and life of the wiper blade. Therefore, the coating should be firmly adhered, durable brushing will not fall off, a...

AI Technical Summary

Problems solved by technology

[0005] At present, there are two types of coatings used by domestic wiper blade manufacturers: one is that graphite powder is directly coated on the surface of the wiper blade, and the method is to put the graphite powder and the wiper blade into the drum to rotate, so that the graphite powder is evenly coated on the surface of the wiper blade The disadvantage is that there is a large amount of free graphite powder on the surface of the wiper blade, which will stick to the hand and is not durable. It will completely fall off after a long time, and the wiping performance will deteriorate; the second is the commercially available finished liquid paint, which is sprayed with special Machine coated on the edge of the wiper blade, and then cured to form a film

The brushing performance and lifespan of this coating is better than the first one, but there are still some shortcomings such as waterline when brushing and squealing under high temperature, and the formula of this coating is kept secret by the manufacturer, and the consistency cannot be guaranteed