Common knowledge of paint: the manufacturing process of American antique furniture

Core tip: the production process of American furniture is relatively complex In the white arsenic stage of wood production, it follows the production method of Chinese traditional furniture Its shape, grain, carving and color are exquisite and noble Its structure is an integral structure, drawer slide, which adopts a central slide, which is very close to nature American painting is a new topic for domestic furniture manufacturing enterprises, with non-technical content Changgao, to develop the American furniture market, it is a key step to master the production process of American furniture American furniture emphasizes comfort, style, practicality and versatility From the perspective of modeling, American furniture can be divided into three categories: antique, neoclassical and rural Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Home of paint: American furniture In the white arsenic stage of wood production, it follows the traditional Chinese furniture production method Its shape, grain, carving and color are exquisite and noble Its structure is a whole structure, drawer slide, using the central slide, which is very close to nature American painting is a new topic for domestic furniture manufacturing enterprises, which has a high technical content and needs to explore the United States With the market, it is a key step to master the production process of American furniture American furniture emphasizes comfort, style, practicality and versatility From the perspective of modeling, American furniture can be divided into three categories: antique, neoclassical and rural style Antique Style: American furniture is based on the life style brought by immigrants from different countries in the late Renaissance in Europe It can be seen from many classic furniture works handed down from generation to generation in the 18th and 19th centuries that the furniture with elegant shape but not excessive decoration has become the representative work of typical American furniture due to the pioneering spirit of early American ancestors and the principle of advocating nature For example, Queen Anne's type of cabrioi leg, the chair of Thomas Chippendale, the master of furniture design, and the beautiful lines that John Goddard, the famous American native designer in the 18th century, excelled in, still occupy a certain proportion in American furniture today Neoclassical style: it came into being in the process of classical furniture designers' innovation and change The designer combines the classical style with his unique style and modern spirit, which makes the classical furniture show a colorful face and become the main feature of the new classical style Rural style: it has been playing an important role in American furniture Because of its simple, bright and practical shape, it has been loved by consumers all over the world for a long time In the design, multi-functional design is added As a whole, American furniture conveys a simple, leisure, organized and multi-functional design idea, making the family a pure land to release pressure and emancipate the mind American furniture 1 American furniture is influenced by the historical background, culture, art, production technology and living habits of Europe and America The formation of American furniture has its unique European and American style and taste Its main feature is to restore the ancient and return to nature, fully show the characteristics of the natural color of wood, and integrate the psychological needs of human yearning for nature and returning to nature 2 Splicing plate and single branch material are used as materials, finger jointing material is not allowed, partial covering and high-grade products are allowed to use full solid wood, particleboard, MDF and other artificial plates are not allowed to use, but plywood can be used (some domestic manufacturers will also use MDF and particleboard) 3 The overall structure can not be disassembled, there are few metal parts, except for the door leaf, magnetic touch and handle In addition, almost no other accessories are needed The frame structure is mainly connected with the structural square The drawer box structure adopts dovetail tenon, which follows the manufacturing method of traditional Chinese furniture, especially the drawer slideway, which adopts the central slideway The high-grade product slideway adopts the wood structure, which is very close to nature 4 In terms of product spraying, it is a whole coating process with complex process, high difficulty and high spraying technology content A complete process requires at least a dozen processes The manufacturing process of American furniture I drying is the first and key step in furniture manufacturing Because the moisture content of raw materials is controlled technically by drying treatment, improper treatment will cause deformation, cracking and other common phenomena of furniture in the later use or processing of wood The water content of East China is within 12% - 15%, which must be controlled at about 8% How to deal with it, furniture enterprises usually adopt the common method of steam drying The whole drying process is monitored by special processing software, which can effectively remove insects, prevent corrosion, control moisture content and improve the performance of wood The drying process is divided into three steps: 1 Preheating: the main low temperature and high humidity, so that the temperature inside and outside the wood is balanced, and the moisture content is initially reduced; 2 Drying stage: the main step is to gradually increase the temperature, slowly reduce the humidity, and extract the water content inside and outside the wood to achieve the moisture content we want; 3 End treatment: there is a gap between the internal and external moisture content of the wood in the drying process After the second treatment, the internal and external moisture content of the wood is consistent and can be kept at normal temperature, which can also reach the moisture content we need, eliminate the internal stress generated in the drying process, and avoid the distortion of the wood; generally, the temperature control range in the drying process is 40-80 degrees, and the treatment cycle is 30-40 days 2、 Basic processing 1 The solid wood raw materials after the drying treatment of the wood batching processing shall pass through the solid wood batching processing place: A: cutting and cutting materials; B: digging saw; C: plane plane plane, four-way plane, press plane; D: plate making; E: digging saw, longitudinal cutting saw, guide saw; F: milling machine; G: (profiling) lathe; H: tenon cutting, holing; I: slotting, carving, sanding; through After the above steps, the solid wood accessories are basically formed and transported into the semi-finished product warehouse In solid wood base processing, wood utilization rate is about 40% The raw wood is cut into strips by cutting and using the texture of wood to make a reasonable panel size that we need When assembling, the glue used is powder glue, which can strengthen the bonding force according to the requirements, and the formaldehyde content of this product is low, so it is an environmental protection product Solid wood splicing method adopts dovetail joint method In terms of raw wood selection, we pay more attention to white oak in North America or Canada, poplar in the United States, Golden Teak in Southeast Asia, beech in Germany, short sapley wood in Africa, etc The selected materials shall be free of large area dead knot, crack and black spot, and shall be accepted in strict accordance with FAS standard 2 Plate batching processing a: batching, veneering, splicing, and piecing; B: rough cutting, edge clamping and framing; C: cold pressing and hot pressing; D: fine cutting, edge clamping and trimming; E: coarse sanding and fine sanding; F: forming and edge sealing; G: row drilling and bench drilling; H: single vertical milling and double vertical milling; I: Machining Center, sand cleaning and manual edge sealing Through the above processes, the plate parts are basically formed and transported to the semi-finished product warehouse In terms of plate selection, medium fiber board and high-density board complying with environmental protection requirements shall be selected In terms of wood skin selection, materials with excellent tree species and beautiful wood grain texture are selected, such as African OKUMAN and black walnut, European cork, South American or African mahogany, other white walnut, white ivory, zebra, red shadow wood, rosewood, etc Generally, the thickness of veneer is 0.6mm, and the moisture content is 8% - 10% There is no obvious color difference in veneer, and there is no dead knot, moth, rot, water wave and other adverse phenomena on the surface The main link of plate processing is the process of veneering Before veneering, the veneer will be wrapped with plastic paper for hot pressing, and then, after gluing, it will be pasted with hot pressing In the process of skin sticking, it mainly goes through manual processes such as matching skin, sawing flower, scalding, piecing flower and making skin In one of the special links, according to the technological requirements, we will put a layer of non-woven fabric on the wood skin The veneer shall be treated with softened water and fish eye glue, and the veneer shall be pasted by hot pressing, so as to ensure that the veneer will not deform on the board, increase its toughness, and make the splicing plane of the veneer flat without obvious seam In addition, in terms of material selection, the wood grain shall be consistent with the wood color 2 It shall be firm, uniform, dense, flat and upright 3 It should be noted that the moisture content of all solid wood parts and tenons used must be strictly controlled, and the standard should be kept below 8% 4 The bad phenomena such as bending, deformation and cracking of all parts shall be selected and treated, and the bending degree of parts other than panel, door frame, door panel and other important parts shall be within 3mm 5 Pay attention to the direction of wood grain such as panel, side plate, door panel, draw panel, etc as well as the left and right upper and lower matching of the pattern, and try to coordinate the color as much as possible 6 During half assembly, check whether the mold and stop point are loose and worn, so as to avoid running and scratching of the outer diameter of the inner space The maximum error of the outer diameter of the inner space is within 0.5mm 7 During assembly, there shall be no adverse phenomena such as reverse installation, wrong installation, nail burst, lock crack, dislocation, etc 4、 Paint painting American painting with nitrocellulose paint, commonly known as NC paint Nitrocellulose paint is composed of nitrocellulose, synthetic resin, plasticizer and mixed solvent It is a volatile and dry fast drying agent It has the following features: 1 Fast drying, drying to form film 15 minutes after construction; 2 Good transparency of film; 3 Hard and wear-resistant film, with sufficient mechanical strength, it can be used in finishing processes such as water sand, wax wiping, polishing, etc., with soft luster after polishing; 4 Easy repair of film However, nitrocellulose paint also has high viscosity, because of its low content, especially the need to add more diluents during construction, so the resulting film is thin and needs to be painted in multiple layers, which has the problems of high labor intensity and material consumption The heat resistance of nitrocellulose film is poor The construction method mainly refers to painting and spraying, with at least five bottoms and two surfaces in the process, and the bottom is colored Many large furniture enterprises have paint coating production lines, such as trolley type, suspension type and electrostatic spraying, with a total length of thousands of kilometers and hundreds of trolley, which are driven by chain type five, controlled by PCL programmable controller, equipped with multiple dry spray tables, multiple water washing tables, steam heating drying room area of thousands of square meters The whole set of coating equipment is composed of trolley type discharge system, circulation heating system, dry and water curtain type paint mist circulation filtering system, purification and drying system, etc it can complete 12 American painting processes from dust blowing, coloring, primer, color repair to finish paint, with an average of one piece of furniture every two minutes and one piece of furniture next two minutes, with a monthly output of more than 10000 pieces Coating process: 1 When grinding, damage treatment and filler white body sanding, do damage treatment, and use different damage tools to make antique effect and old appearance After treatment, 180 × or 240 × sandpaper must be used for sanding treatment When there are no pinholes and flaws on the surface of furniture coating, fill is used to obtain a good coating and smoothness 2 Bleaching is one of the methods used to simplify coating problems caused by material color difference When the color of the coating is lighter, the darker