The appearance of the escalator and the automatic sidewalk is mostly made of stainless steel. In order to maintain the magnificence and cleanliness of the stainless steel components and prolong the service life of the stainless steel components, the stainless steel surface must be properly cleaned and maintained.
The stainless steel parts of escalators and moving the main floor panel, apron, inner / outer cover, handrail frame, cascade, and according to the special requirements of some customers put, sometimes may be to use the special surface treatment of stainless steel, such as stainless steel, stainless steel, nickel plating on stainless steel surface by sand blasting. In this paper, the author mainly introduces the maintenance and maintenance of escalator and automatic sidewalk stainless steel parts during installation, and some special treatment measures under improper usage.
Maintenance of 1 stainless steel parts during installation
In the escalator and the automatic sidewalk installation process, to avoid heavy objects, pressure stainless steel components, and can not tear off its protective film.
(1) because the thickness of escalator and automatic sidewalk stainless steel parts is relatively thin, they must be protected from collision, extrusion and scraping during transportation and installation. Otherwise, stainless steel parts may be deformed and scratched, which will affect their aesthetics.
(2) try not to tear off the protective film on the stainless steel surface before the escalator and the automatic sidewalk are used by the user. But the protective film will have an aging phenomenon, after aging, it will leave a paste mark on the surface of the stainless steel plate. Generally speaking, in the state of the protection film packaging performance at room temperature and humidity in a certain period of time, however, due to the specific situation is different, such as wind and sun, heat and pressure, can not guarantee the use of the film is the deadline, so according to the specific situation to determine the tear film of the time, so as not to leave traces of paste. After the tearing of the protective film, the stainless steel surface must be properly cleaned and maintained.
Daily maintenance of 2 stainless steel parts
After tearing the protective film of the stainless steel parts, the surface should be kept clean. When the surface of the stainless steel parts is contaminated, the correct method should be taken and cleaned in time.
2.1 different cleaning methods can be adopted for different surface pollution conditions
Escalators and moving in use, due to the different use of the environment, location, population, pollution state of the stainless steel parts surface will appear, must be on the pollution situation and take effective measures to maintain the gorgeous and clean stainless steel parts. The cleaning methods for different pollution situations are as follows: (1) for dust, hand scale, light spots and easily removed dirt, clean it with a clean wet cloth. (2) for the protection of membrane residue, with the wet cloth containing neutral detergent and scrubbing, cleaning degumming can use alcohol solvent. (3> for fat, oil, lubricating oil pollution, dry with soft cloth or paper and then use wet cloth containing neutral detergent to scrub. (4) for bleaching agents and various acid attachments, clean the foreign body with clean wet rag immediately, and then use wet cloth containing neutral detergent to scrub.
2.2 precautions in the cleaning process
Stainless steel components must be regularly cleaned, but the appropriate tools and cleaners must be selected for cleaning, otherwise the stainless steel components may be hurt. Matters needing attention: (1) please pay attention to surface scratches while cleaning. Avoid washing liquid, steel ball, abrasive tool and so on. The cloth must be made of soft cloth. (2) absterge at the end of the work, with a clean wet cloth to scrub to remove the residual detergent on the surface of stainless steel material, finally completely wipe dry with a dry cloth. (3) cleaning operation switch component, on-off key hole should be avoided in the liquid flows through the movable parts.
Special treatment measures such as rust removal of 3 stainless steel
If the stainless steel parts are rusty when they are not used properly or daily maintenance is not timely, they should notify the professional maintenance personnel in time, take special measures to deal with rusting parts, and carry out special rust removing and cleaning work for rusted parts.
Cause of rust of 3.1 stainless steel
Generally speaking, stainless steel will not rust, but if it is used or maintained inappropriately or the environment of stainless steel is too harsh, it may rust. Because the composition of the stainless steel in addition to iron elements, but also contains other metal components such as chromium, nickel, titanium and so on. Chromium and nickel have antirust function, which forms a layer of protective film and a blunt film to prevent stainless steel from rusting. In general, stainless steel will not rust as long as the film is not damaged, broken or contaminated by impurities. But if the use or maintenance is unsuitable, the blunt film is damaged, and the stainless steel will be embroidered.
General stainless steel surface rust is mainly related to the following situations: escalator and automatic sidewalk manager or maintenance personnel need special attention: (1) escalator and automatic sidewalk are in the environment with dust, iron powder or rust prone substances. (2) the stainless steel parts are soaked in water for a long time. (3) stainless steel parts with Potassium Permanganate, hydrogen peroxide, potassium perchlorate oxidant such as contact material. (4) the stainless steel parts are in contact with strong acid, such as hydrochloric acid, concentrated nitric acid and sulfuric acid. (5) the stainless steel parts are in contact with strong alkaline substances such as sodium hydroxide and potassium hydroxide. (6) no regular cleaning of stainless steel components. (7) the tools or Cleaners Used for cleaning are harmful to the surface of the stainless steel, such as steel wipes, wire brushes or scrapers.
Treatment of 3.2 rusting
When stainless steel is rusty, it can be derusted according to the following operation steps.
(1) use a soft cloth with a small amount of water to wipe off the dirt on the surface.
(2) use soft cloth or sponge with stainless steel cleaning liquid to remove the surface stickiness and slight rust.
(3) if the rust remains residual, it can be gently wiped to rust with a hundred clean cloth (rough surface) or a steel ball. This step must pay attention to the following matters: only for hairline stainless steel, mirror and etching surface and other special processing can not be carried out this operation, the rust shall be wiped along the hairline direction; if there is residual rust, the place may be recycled rust, it must be thoroughly clean the rust trace.
(4) use wet cloth containing glass detergent to scrub.
(5) clean the residue of stainless steel on the surface of stainless steel with clean wet cloth and dry the surface with dry rag.
After the surface is derusted, it must be maintained according to the daily maintenance method of the second section of this article, otherwise it may be rusty again.
Precautions for maintenance and maintenance of 4 colored stainless steel, sandblasting stainless steel, surface electrophoretic stainless steel components and so on
The routine maintenance of coloured stainless steel, sand blasting stainless steel and surface electrophoretic stainless steel parts is similar to that of the second section of this paper. However, due to the coating or paint on the surface, it is necessary to prevent the coating or paint from being damaged when cleaning.
4.1 requirements for the composition of detergent
(1) the use of neutral detergent or detergent must be used.
(2) it is not possible to contain acid, especially the acid containing chlorine or the substance containing chlorine, followed by sulfuric acid, sulphuric acid and oxidizing acid.
(3) the detergent can not contain granular abrasive in order to prevent the damage of the surface of the plate.
(4) it is strictly forbidden to use strong acid and strong alkali detergent.
4.2 precautions for cleaning and maintenance
Precautions: (1) for the cleanliness of oil attachments, avoid using acetone, tin and other organic solutions, because they may destroy the coating and paint layer on the surface of stainless steel. (2) avoid containing hydrogen peroxide, Potassium Permanganate, potassium perchlorate oxidant such as physical contact. (3) avoid contact with strong acid, such as hydrochloric acid, concentrated nitric acid and sulfuric acid. (4) avoid contact with strong alkaline substances such as sodium hydroxide and potassium hydroxide. (5) avoid cleaning, rust remover and other corrosive substances contact. (6) avoid contact with contaminated materials such as cement, sand and soot. (7) between plate and plate, it can not be welded in use, otherwise it will cause local discoloration.
5 Conclusion
Stainless steel is not rusty, and stainless steel can rust if it is not properly cleaned and cleaned in time. As the escalator and the automatic sidewalk usually use all stainless steel design, it is very important to take timely and correct maintenance of the stainless steel parts. Only timely and proper maintenance of stainless steel parts can ensure the cleanliness of stainless steel parts, prolong the service life of stainless steel components, and make the escalator and automatic sidewalk look gorgeous and beautiful.