One: Prepare materials
1. Dry the board, and control the moisture content of wood at 8%~ 10%. The moisture content of undried wood is generally above 50%, and the dried wood is not easy to burst and deform.
2. Balance: Leave the dried wood for a few days to restore the balance of the wood.
3. Choosing materials and ingredients, wood products can be divided into three types according to their parts: external wood, internal wood and dark wood. External materials are exposed, such as the surface of the desk and the visible part of the cabinet; Internal materials refer to products used internally, such as internal files and bottom plates. Dark materials refer to parts that can't be seen under normal use, such as drawer guides, cladding panels, linings, etc. Pay attention to knots, internal cracks, blue changes, rotten wood and end cracks when selecting materials.
4. Rough planing, and determine the thickness of wool board.
5. Wind shear, trimming length of wool pieces. According to the required length, the blanking is lengthened by 20 mm.
6. Trim and cut off the useless burrs on the wool board.
7. Matching of boards: The materials matched with boards are divided into straight lines and gable lines, and the color matching is consistent. According to the required width, the mosaic width is reasonable. When selecting materials, internal cracks, end cracks, knots, blue changes and rotten wood parts should be eliminated.
8. Glue distribution: evenly distribute the glue between the wood. Glue ratio: the ratio of curing agent (10- 15g) and splicing glue (100g) is about 500g each time.
9. Splicing: Splicing the wood with a splicing machine. Pay attention to height difference, length difference, color difference and scar.
10. After aging and gluing, the wood is left for about 2 hours to allow the glue to solidify.
1 1. Sand planer, which planes off the excess glue between the wood, so that there is no excess glue on the wood surface.
12. Saw to set the width, and use a single saw to set the width of the wood.
13. Planing and molding on all sides, and planing wood according to the required shape.
14. curing: let the wood stand naturally for about 24 hours.
Two: carpentry
1. Set the thickness of wide sand, stop the sand to the size that meets the processing requirements as required, and grind after processing, with coarse sand of 0.2mm and grinding of 0.1mm..
2. Fine cutting and fixing the length of wool to ensure that stubble collapse and blackening do not occur during processing. The processing error of length and width shall be less than 0.2mm, the diagonal below 1 m shall be less than or equal to ≤0.5mm, and the diagonal above 1 m shall be less than or equal to1mm..
3. Forming: processing and forming the wood according to the drawings. Stubble, burr, knife jumping and blackening are not allowed during processing. The surface of the machined parts should be smooth, flat and straight. Before processing, check whether the screws of equipment parts are loose, whether the template is installed correctly, whether the tool is installed securely, and it is forbidden to feed along the knife during processing. The dimensional error of parts should not exceed 0.2 mm.
4. Drilling, drilling according to the drawing process requirements, there is no collapse hole or puncture hole in the processing process, and the hole location processing error is less than 0.2mm, and the products are drilled, and the products are often tested and checked to ensure the product quality.
5. Accessories should be sanded and sanded, and the finished products with good sanding should be smooth, without sand marks and consistent edges and corners. Before sand inspection, it is necessary to know the use position of the parts, fill the soil first and then sand.
6. Assemble parts that do not need to be disassembled. Prepare materials before assembly, and check all parts to be assembled according to the processing requirements of drawings, and the parts are free of cracks, burrs and blackening. After the first piece is installed, the measurement and loading will be started when there is no error between the ruler and the drawing process. During the assembly process, the adhesive tape should be evenly daubed, and the assembled semi-finished products should not leak nails or slurry, and be closely combined, and the glue should be wiped clean.
7. Check whether there are errors between the assembled and assembled parts and drawings. The difference with group assembly is that the finished product is after the large group assembly is completed.
8. Sanding inspection of finished products, that is, sanding the finished products to make them smooth, without sand marks and with consistent edges and corners.
9. Balance, and let the parts naturally stand for a period of time.
10. Check the sand on the coating line and polish the surface of the workpiece again, especially the capillary fibers on the wood surface. At the same time, check whether the defects of the body-in-white have been handled well, such as poor repair, poor grinding, cracking and deformation.
1 1. Blow to clean the dust on the surface of the workpiece.
Three: painting
1. Color rubbing: After the professional technicians prepare the color rubbing agent, they should try to rub it first to confirm whether the color rubbing agent is correct and appropriate (subject to the color sample, adjust it appropriately). Before rubbing, the friction agent should be stirred evenly until there is no sediment. The brush used must be cleaned first, and the cloth to be wiped must be an indelible cloth. Brush the product evenly with a brush, without any leakage. Then quickly wipe the stain clean with a cloth strip. Check the product for unclean colorant residue, sagging, uneven coloring, etc.
2. Background color: Select the background color according to the requirements of the color sample, and adjust the color difference between materials through the background color.
3. Head primer, dust should be blown clean before spraying, and check whether the color wiping effect is good. Head primer concentration 16 second, spraying thickness is cross.
4. Dry, and dry for 6-8 hours after spraying.
5. Sand blasting cleaning: First, fill all scratches, and then gently polish them with 320# sandpaper, mainly to polish off burrs generated on painted products.
6. For the second primer, dust shall be blown off before spraying, and the primer concentration shall be18second, and the thickness shall be cross.
7. Dry, and dry for 6-8 hours after spraying.
8. Sand cleaning: firstly, fill the defective places in place, and then polish the paint surface with 320# sandpaper to be smooth and flat, and the paint surface cannot have big bright spots.
9. Three-level primer, blow the dust clean before spraying. Primer concentration 16 second, thickness is cross.
10. Dry, spray and dry for 6-8 hours.
1 1. sandblasting cleaning: polish the paint surface with 400# sandpaper, and no bright spots are allowed on the paint surface.
12. Color modification. Check whether the product is good or not before changing color, and clean up the dust and pollutants on the product. The technician will make color matching, then repair a prenatal sample according to the color sample, and the on-site supervisor will determine the color before the operation.
13. Oil sands, the product after color change should be dried for 4-6 hours, and then the surface of the product should be polished smooth with 800# sandpaper. Attention should be paid to prevent leakage and scratch of color paint during grinding.
14. Before painting, check whether the product is in good condition, whether the product surface is smooth, and the surface dust and attachments must be cleaned up. The thickness of the top coat is11-12s.
15. Dry for 4 hours.
Four: packaging
1. Inspection, visual inspection: Check whether the overall color matching of the product is consistent, and there can be no different shades. Observe whether the paint surface of the product is smooth, sagging, uneven spraying, orange peel, missed spraying and foggy white under natural light. Touch by hand: Touch the paint surface by hand to check whether the surface is smooth and whether there are particles. Feel the texture and feel of the paint with your hands.
2. Dot color for repairing surface defects of workpieces.
3. Blow to clean the dust on the surface of the workpiece.
4. Packaging, packaging products.
The above is Bian Xiao's knowledge about the manufacturing technology of wooden furniture. I don't know if you have any further understanding and understanding of wood furniture manufacturing technology after reading it? In fact, in our daily life, wooden furniture can be seen everywhere, and people often ignore such a simple thing, which actually requires great efforts. The tedious process creates exquisite craftsmanship. Bian Xiao believes that everyone can learn more about things in our lives, not only increase their knowledge, but also realize that good things are hard to come by, so as to better cherish what we have.
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