echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Coatings News > Paints and Coatings Market > Common sense of paint: analysis of three misunderstandings in automobile painting and baking

    Common sense of paint: analysis of three misunderstandings in automobile painting and baking

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    Core tip: in recent years, with the increasing profits of automobile paint repair business in maintenance enterprises, automobile repair paint, spray paint equipment, tools and related technologies are also more and more concerned by professionals However, many maintenance enterprises have not established a rigorous process flow in the process of spraying and baking paint, and there are still many misunderstandings in the operation of maintenance personnel This paper analyzes the misunderstandings and Countermeasures in the relevant links 1 Misunderstandings in workshop facilities planning (1) Mutual interference of each process flow When planning the workshop facilities, it is necessary to ensure that each process flow during the painting process Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: in recent years, with the auto paint repair business in the maintenance business of higher and higher profits, auto repair paint, spray paint equipment and tools and related technologies are also more and more attention by professionals However, many maintenance enterprises have not established a rigorous process flow in the process of spraying and baking paint, and there are still many misunderstandings in the operation of maintenance personnel This paper analyzes the misunderstandings and Countermeasures in the relevant links 1 Misunderstandings in workshop facilities planning (1) mutual interference between various process flows when planning workshop facilities, it must be ensured that there is no mutual interference between various process flows in the process of painting and baking But now many maintenance enterprises have some problems in this respect, for example, in cold weather, in order to have a warm working environment, many maintenance personnel will move the paint polishing work to the paint baking room, and the enterprise has not implemented strict management In this way, the waste generated in the grinding process will affect the paint spraying For large maintenance enterprises with more maintenance vehicles, in order to achieve professional operation, it is better to equip special grinding room to meet the needs of paint repair workshop, remove dust and exhaust gas from special maintenance workshop, ensure the fresh working environment, improve the quality of spraying and baking paint, and ensure the physical and mental health of production personnel (2) The quality of maintenance is reduced because of the simple For the maintenance enterprises with insufficient economic strength, they can take simple measures in the planning of workshop facilities, but not at the cost of quality reduction, but some of them are not standardized in this respect For example, the lighting of paint spraying room or paint mixing room adopts poor quality fluorescent lamps or even incandescent lamps, which will affect the effect of color matching due to poor environmental light 2 In the process of manual color mixing, the lack of correct procedures for paint mixing requires a correct procedure to ensure the effect of paint mixing Some of the maintenance personnel who are responsible for the deployment of automobile repair topcoat are not proficient in the theory of color matching and do not understand the influence of surrounding environment on color, so it is difficult to draw up a complete color matching procedure For example, some maintenance personnel found that they had been mixing paint in strict accordance with the procedures, but there was still a certain gap between the sample paint and the color matching paint, so that the repair color paint and the car original paint could not match well, so they were at a loss about this In fact, the palette paint is wet and the sample paint is solid, so the color of the mixed paint should be slightly lighter than the sample color, not similar, not too deep, so that the same color will be the same after the paint is dry, otherwise it will be too deep The paint mixer must identify the color correctly and carefully, and identify its real color In particular, it is necessary to be able to distinguish the color paint to be processed, as well as the heavy tone within the color range of the color paint, including the darkness or brightness level, and the brightness or saturation of the color In the process of color matching of automobile finish, it is necessary to adjust the brightness, chroma and hue with different spraying methods to achieve the best color The general procedure of color matching is as follows (1) Identify colors accurately First, color according to the color plate, accurately identify its "hue", "lightness" and "purity" under the standard light source conditions, and then determine the main color, background color and other necessary color and primary color materials (2) Choose the right color According to the requirements, the type, variety, diluent and auxiliary materials of the color coating shall be selected, which shall be used in combination with each other, and the primary color materials with excellent performance and economic performance shall be selected for use (3) First small sample and then large modulation In the absence of color matching equipment, it is more necessary to adjust the sample first to obtain the accuracy of color matching, which lays a foundation for a large number of modulation to reduce waste (4) The mixing steps and methods shall be strictly in line with the principle of "first main, then secondary, from shallow to deep", and the mixing shall be fully stirred and the mutual dissolution shall be uniform (5) When the auxiliary materials are added, the corresponding varieties shall be added strictly according to the proportion, and the allocation shall be timely and appropriate, and the mutual adjustment shall be even 3 There are loopholes in the preparation work before painting (1) the surface treatment of the car body is not sufficient Some vehicles will have the phenomenon of the body surface not smooth and flat after painting This is mainly because the maintenance personnel have loopholes in the treatment process of the body surface, for example, the cleaning, rust removal, repair and oil removal processes are omitted, and the old coating of the vehicle is not completely removed; The damaged parts of the car body are not repaired by sheet metal or welding, or the repair fails to meet the requirements of the original shape and size In order to do a good job of body surface treatment before painting, pores, sand holes, slag and their uneven places must be carefully trimmed before painting, and the surface must be smooth, flat, clean and dry, otherwise some problems will be left for the subsequent links (2) Improper selection and scraping of atomic ash in the repair process of automobiles, the whole or part of the exterior of automobile body and exterior accessories will appear high and low, concave and convex and weld marks due to the equal treatment of beating, drawing, prying and repairing by sheet metal workers, which is not allowed to be filled by the primer, so it is necessary to scrape and paint the original putty of automobiles to make the exterior smooth and even In this link, the common problem of painters is the improper selection and scraping of atomic ash, which affects the appearance effect In terms of the selection of atomic ash, the maintenance personnel usually do not use it in combination with the specific construction objects, and according to the level of repair vehicles, the degree of damage and the requirements of external surface paint, but use a small number of atomic ash uniformly, or select according to the regular varieties of paint stock In fact, there are many kinds of atomic ash, including finished atomic ash and self-made oily atomic ash In the finished product, there are room temperature drying type, drying type and quick drying type In addition, there are single component and multi-component atomic ash Only according to the different construction objects, the correct selection of atomic ash can ensure good appearance effect In the process of maintenance, some maintenance personnel are not standardized on the way of scraping and coating the atomic ash, the connection of before and after procedures, and the control of the amount of atomic ash There are two ways of scraping atomic ash: full scraping and soft hard alternating scraping Full scraping can be divided into filling scraping and relying scraping Soft hard alternating scraping can be divided into "first up and then scraping" and "belt scraping" When scraping the atomic ash, attention shall be paid: before scraping directly, the metal surface shall be coated with the matching primer, and the atomic ash can only be scraped after it is completely dry When scraping, the scraper shall be gently pressed down and scraped along the long axis of the coating; the amount of atomic ash to be scraped each time shall be appropriate to avoid honeycomb and pinhole; when the last atomic ash reaches the semi dry state, it shall be scraped again Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.