**1. Introduction to the Manufacturing Process of Pine Furniture**
The manufacturing process of pine furniture involves several key steps, starting from the selection of raw materials and ending with the final finishing and inspection. The basic procedure includes sawing, drying, surface machining, defect removal, jointing, shaping, assembly, coating, and quality control. Each step is essential to ensure the durability, aesthetics, and functionality of the final product.
**2. Selection of Pine Board Thickness Specifications**
Choosing the appropriate thickness for pine boards is crucial in furniture manufacturing. Several factors influence this decision:
- **Yield of the Sawn Timber:** Thicker or thinner boards can affect the overall yield. For example, small-diameter logs are typically sawn into thin sheets, while larger logs are used for thicker planks.
- **Degreasing Difficulty:** Thicker boards require longer degreasing times, which may lead to a loss of wood strength.
- **Furniture Component Dimensions:** The size and shape of the parts needed for the furniture determine the most suitable board thickness.
Based on these factors, different thicknesses are used for various applications, as shown in Table 1.
**Table 1: Pine Wood Material Thickness Specifications and Uses**
| Sawn Timber Name | Thickness (mm) | Common Use |
|------------------|----------------|------------|
| Thin Panel | 20–22 | Panels, drawers, and other flat components |
| Medium Panel | 26–30 | Panel edges, frames, and structural parts |
| Thick Panel | 40 | Supports, legs, and heavy-duty components |
**3. Degreasing Process of Pine Wood**
Degreasing is a critical step in preparing pine wood for use in furniture. This process helps remove natural resins and impurities, improving the wood’s stability and paint adhesion. It involves soaking the wood in a solution containing sodium bicarbonate, sodium carbonate, and calcium hypochlorite, followed by steam treatment and vacuum processing.
**4. Drying of the Degreased Material**
After degreasing, the wood is still at about 30% moisture content and must be dried immediately. A custom-built drying kiln is used, with different drying standards applied depending on the thickness of the boards.
**5. Finger Jointing, Jigsaw, and Thickening**
Once dried, the boards undergo four-side planing to achieve uniform dimensions. Defects such as knots and cracks are removed, and the boards are then joined using finger joints or edge gluing. For thick components, multiple boards are glued together to form a solid piece. This process ensures strong and stable furniture parts.
**6. Surface Painting Process**
The surface painting process includes several stages to ensure a smooth and durable finish:
1. **Surface Cleaning:** Remove oils and debris using sandpaper.
2. **Sealing Primer:** Apply a primer to seal the wood surface.
3. **Grinding:** Smooth the surface with fine sandpaper.
4. **Filling:** Use putty to fill gaps and holes.
5. **Polishing:** Repeat grinding to achieve a smooth texture.
6. **Applying Primer:** Apply transparent primer in thin layers.
7. **Final Coating:** Apply the topcoat and polish for a glossy finish.
This multi-step process ensures that the final product has a professional and long-lasting appearance.
**7. Common Sheet Sizes for Pine Children's Furniture**
Common sheet sizes used in children's furniture include:
1. 2440 × 1220 × 10 mm
2. 2440 × 1220 × 15 mm
3. 2440 × 1220 × 20 mm
4. 2440 × 1220 × 25 mm
5. 2440 × 1220 × 30 mm
6. 2440 × 1220 × 40 mm
These dimensions are designed to meet standard furniture requirements while maintaining flexibility in design.
**8. Common Hardware Accessories for Pine Children's Furniture**
Some common hardware used in pine children's furniture include:
- Double-head assembly
- Three-in-one connector (eccentric + screw + nut)
- Hydraulic hinge
- Countersunk screws
- Gravity disassembly
- Eccentric connector cover
- Slide rail
- Laminate support
- Coat rack
- Corner code
- Clothes rack
- Clothing stand
- Wood screws
- Self-tapping screws
- Strong four-in-one connector
- Hexagon socket screw + cross hole nut
- Allen wrench
These components help in assembling and reinforcing the furniture, ensuring safety and durability for children.
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