Colorless, transparent and odorless agent for cleaning airplane

[0006] The invention provides a colorless, transparent, and low-odor aircraft cleaning agent. According to the latest version O standard of Boeing D6-17487 and Airbus IMS09-00-02 and other standards, by adjusting the product components, the formula product can be used to clean aircraft wheel wells and metal aircraft parts by spraying, brushing, soaking, etc. , anti-corrosion oil and other dirt on structural parts. Prepare the following formulations by weight ratio:

[0007] 1. 10% tetrachlorethylene, 20% nitrogen methyl pyrrolidone, 10% mineral spirits, 5% ethylene glycol butyl ether;

[0008] 2. 30% tetrachlorethylene, 25% nitrogen methyl pyrrolidone, 20% solvent naphtha, 15% ethylene glycol butyl ether;

[0009] 3. 60% tetrachlorethylene, 30% nitrogen methyl pyrrolidone, 30% solvent naphtha, 30% ethylene glycol butyl ether;

[0010] Described solvent oil is No. 200 solvent oils.

[0011] This product has been selected by several domestic large-scale aircraft maintenance companies according to the degree of light, medium and relatively heavy pollution of aircraft wheel wells, metal aircraft parts, anti-corrosion oil on structural parts and other dirt, or fixed selection. A kind of trial has proved that it has obvious effects, and it has been widely used in major domestic aviation maintenance enterprises, and has achieved good economic benefits.

[0012] The present invention takes following measures,

[0013] ①Reduce the smell of the cleaning agent, because the solvent cleaning agent must have a certain smell, if the smell is too strong, the workers cannot work. In the process of developing the formulation of this agent, reduce the content of large odor components such as tetrachlorethylene and select other non-toxic, colorless, transparent, and low-odor solvents to reduce the odor of the product in multiple ways and solve the problem of strong odor of cleaning agents .

[0014] ②Choose a suitable flash point. Due to the cleaning environment and conditions in our country, the flash point of the cleaning agent should not be too low, but it should not be too high. affect the next step. Therefore, after many tests and selection of suitable raw materials, the cleaning agent has a flash point of 105°C and is volatile and meets the requirements for use.

[0015] ③The cleaning speed is fast. Firstly, choose a solvent with good cleaning effect for the compatibility cleaning effect test. In order to solve the cleaning of the vibration damping pad, a solvent that dissolves little rubber and plastic must be selected among the compatible solvents. This solvent does not damage Rubber and plastic, but they can be quickly peeled off from the structural parts. Through physical tests, the cleaning agent has achieved a satisfactory cleaning effect.

[0016] This product has been measured and tested by the civil aviation testing center on ①hydrogen embrittlement, ②interlayer corrosion, ③full immersion corrosion, ④cadmium removal test, ⑤paint softening test, ⑥residue test, ⑦titanium alloy stress corrosion, etc. It is a solvent-based cleaning agent, compatible with the materials of the cleaning parts; it can safely and thoroughly remove anti-corrosion oil, oil stains, carbon deposits and dust on the outer surface of aircraft parts. It does not damage the materials of aircraft parts, does not leave any traces, does not corrode aluminum and cause hydrogen embrittlement. Compared with the existing cleaning agent for aircraft parts, the cleaning agent has a high flash point, fast cleaning speed, safety, and convenient storage and transportation. This product has been tested by several large domestic aircraft maintenance enterprises, which proves that it has obvious competitive advantages.