Questions and Answers
What are the dimensions of the internal filler used in Blockboard panels?
Which of the following is NOT a use of Blockboard panels?
What is one disadvantage of Blockboard panels related to their construction?
What is the thickness range available for Blockboard panels?
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Which statement about the advantages of Blockboard panels is accurate?
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What is the primary advantage of using particleboard in furniture manufacturing?
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Which of the following is a limitation of particleboard when used in construction?
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What is the typical density range of particleboard used in the furniture industry?
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Which adhesive is commonly used in the production of particleboard?
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Which of the following applications is NOT suitable for particleboard?
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Study Notes
Blockboard Sheets
- Composed of layers of veneer on top and bottom with wooden lists in between.
- Width of wooden lists spans from 7 mm to 30 mm.
- Typically used in furniture manufacturing and interior design.
- Internal filler consists of softwood (e.g., poplar or white pine) measuring 15x15 mm or 20x20 mm, or rectangles of 15x20 mm or 20x30 mm, with a maximum length of one meter.
- Veneer layers are made from various woods, 2-3 mm thick, placed on fibrous reflective middle blocks.
Uses of Blockboard Panels
- Suitable for furniture manufacturing.
- Used for wall cladding and making tables and benches.
- Ideal for creating long bookshelves and internal door fillers.
Advantages of Blockboard Panels
- Easy application of natural wood veneers or Formica, available in ready-to-use pallets.
- Capable of forming interlocks and various welds for large surface construction.
- Produces large areas without visible joints or defects.
Disadvantages of Blockboard Panels
- Filler packs cannot reverse the annual ring direction, leading to potential curvature.
- Requires edge treatment with wood frames.
- May curve after applying veneer on one side.
- Expansion gaps become noticeable when trimming the board.
Sizes and Sales Units of Blockboard Panels
- Thickness options: 12, 19, 22, and 25 mm (locally manufactured).
- Available sizes:
- 244 x 122 cm
- 220 x 122 cm
- 200 x 125 cm
- 120 x 100 cm
Manufactured Wood Types
Particle Boards
- Made from cellulose fibers from varied sources (wood, flax, cotton, sugarcane).
- Processed mechanically into particles, dried, mixed with adhesives, and compressed at high temperatures (around 120°C).
- Commonly used in furniture industry, density ranges from 550 to 750 kg/m³.
Properties of Particleboard
- Manufactured as large panel sizes with a homogeneous structure.
- Acts as a sound isolator and is easy to operate with machines or manually.
- Compatible with wood veneer, Formica, and plastic.
- Economical and cost-effective.
Disadvantages of Particleboard
- Prone to crushing at edges; requiring additional framing for protection.
- Less durable than natural wood or blockboard.
- Ineffective for making holes for screws or hinges.
Uses of Particleboard
- Ideal for wall and ceiling cladding in various settings (homes, offices, halls).
- Provides sound insulation for theatres, cinemas, and lecture halls.
- Used in the manufacture of furniture, including desks and cabinetry.
- Suitable for door cladding and filling.
Available Sizes of Particleboard
- Size options include:
- 244 x 122 cm
- 366 x 122 cm
- Thickness options: 6, 8, 10, 12, 16, 19, 22, 25, 30, and 36 mm.
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Description
Explore the composition, advantages, and disadvantages of blockboard sheets. This quiz covers their application in furniture manufacturing and interior design, highlighting both their practical uses and potential drawbacks. Perfect for students in wood technology or design courses.
