Products Description
Compressed and Laminated Wood is a high-performance engineering material designed specifically for electrical insulation and structural support. It is widely used in transformers, mutual inductors, reactors, motors and other equipment.
advantages:
2. Good insulation performance
3. Mechanical strength
certificate
Boards Flatness(Unit mm)
| Normal Thickness | Distance of points on the veneer face from light weight straight ruler | |
| 500 straight ruler | 11000straight ruler | |
| ≤15 | 2 | 4 |
| >15...≤25 | 1.5 | 3 |
| >25...<60 | 1 | 2 |
| >60 | 1 | 1 |
Normal Length and Width Tolerance (Unit mm)
| Length and Width | Tolerance |
| >100...≤250 | ±0.8 |
| >250...≤500 | ±1.0 |
| >500...≤1000 | ±2.0 |
| >1000...≤2000 | ±3.0 |
| >2000 | ±4.0 |
Product Display
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Surface Quality
| Item | Allowed Range |
| Swelling | Not Allowed |
| Cracking | |
| Dead Knot | |
| Foreign-body Adhering | |
| Insect Hole | |
| Rot | |
| Contamination | |
| Bruising | A few allowed, not effect in usage |
| Impression | |
| Color-odds and Splash | |
| Patches per sq.m.on surface | ≤3 |
Electrical Laminated Wood Technique Target Table
| Capability | Unit | Model | |||||||||
| Veneers technique target | Rings technique target | ||||||||||
| P3B | C1B | C2B | C3B | C4B | T2B | T4B | |||||
| Appearance Density | g/cm³ | 1.1-1.2 | 0.7-0.9 | 0.9-1.1 | 1.1-1.2 | 1.2-1.3 | 0.9-1.1 | 1.2-1.3 | |||
| Moisture | % | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 | |||
| Vertical Layer Direction Flexural Strength |
Direction A | MPa | ≥150 | ≥45 | ≥55 | ≥65 | ≥80 | Diameter>1000mm | ≥100 | ≥140 | |
| Direction B | Diameter≤ 1000mm | ≥90 | ≥125 | ||||||||
| Vertical Layer Direction Flexural Modulus of Elasticity |
Direction A | GPa | ≥14 | ≥4.5 | ≥6 | ≥8 | ≥9 | ≥10 | ≥13 | ||
| Direction B | - | ||||||||||
| Compressibility (Below 20MPa) | C | % | ≤3 | ≤5 | ≤4 | ≤3 | ≤2.5 | ≤5 | ≤4 | ||
| Crev | ≥70 | ≥70 | ≥70 | ≥70 | ≥70 | ≥70 | ≥70 | ||||
| Impact Strength (side Test) | Direction A | KJ/㎡ | ≥35 | ≥6 | ≥10 | ≥613 | ≥15 | ≥25 | ≥35 | ||
| Direction B | - | ||||||||||
| Shear Strength | MPa | ≥8 | ≥5 | ≥7 | ≥8 | ≥9 | ≥7 | ≥9 | |||
| Vertical Layer Direction Electric Strength | KV/ | ≥11 | ≥9 | ≥10 | ≥11 | ≥12 | ≥10 | ≥10 | |||
| mm | |||||||||||
| Parallel Layer Direction Puncture Voltage | KV | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | ≥50 | |||
| Shrinkage After Dried | Direction A | % | ≤0.2 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 | Girth | ≤0.5 | ≤0.5 | |
| Direction B | ≤0.5 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 | ||||||
| Thickness | ≤3 | ≤3 | |||||||||
| Thickness | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ||||||
| Oil Absorption | % | ≥8 | ≥8 | ≥15 | ≥8 | ≥50 | ≥15 | ≥5 | |||
| (Δtanδ) Contamination to Liquid Dielectric | - | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | |||
Normal Thickness and Tolerance (Unit mm)
| Normal Thickness | Tolerance |
| ≤10 | ±1.4 |
| >10...≤15 | ±1.6 |
| >15...≤20 | ±1.8 |
| >20...≤25 | ±2.0 |
| >25...≤30 | ±2.2 |
| >30...≤40 | ±2.6 |
| >40...≤60 | ±3.0 |
| >60...≤100 | ±4.0 |
| >100...≤150 | ±4.0 |
Products Specification (Unit mm)
Veneer Maximum Specification:4000x3000x120
Veneer Maximum Specification: (length x width x thickness)
Veneer Usual Specification:
3000x1500x(10-120)
2400x2000x(10-120)
Veneer Usual Specification:
(length x width x thickness)
X-Shape Pressure Ring Maximum Diameter：3000
Packing
Packaged in wooden crates, wooden framed cases or other strong enough materials covered with moisture-proof materialoutside.
Gross weight of each package not exceeds 3000kgs.
Storage
Electrical Laminated wood for oil transformer insulation should be stored in a clean and dry room with temperature not exceeding 40℃ and should be laid flat wise on a stepping-board which is at least 50mm from the ground, never close to fre source, heat source and protected against moisture.
Application scenarios
Compressed And Laminated Wood usually uses high-quality hardwoods such as oak, walnut, etc.
About us
1. Manufacturer Place your order directly to the factory, no intermediate cost, more fast delivery ,better service and economical cost.
2. Have a management team with high quality, professional expertise, and a reasonable professional mix. The management team has a high professional level, high cohesion, pioneering innovation, and rich management experience.
3. Our company's products have passed the national quality management system certification in 2011. The company has also won the certificates of the China Famous Brand Enterprise Promotion Association, the Credit Professional Committee of the National High-tech Quality Supervision and Promotion Committee [National Quality Trustworthy Enterprise] and the quality management system (GB /T19001-2008/Is09001:2008), environmental management system (GB/T24001-2004/Is014001:2004), and occupational health and safety management system (GB/T28001-2011/OHSA18001:2007) certificates.
Production process
Factory Display
What can we do for our customers?
24 hours a day online.
Professional customized service.
Quality after-sales service.
Strict control of product quality.
faq
Q: 1. who are we?
Q: 2. how can we guarantee quality?
Always final Inspection before shipment;
Q: 3. why should you buy from us not from other suppliers?
Q: 4.what services can we provide?
Language
Q: 5.Q:What type of wood is used in transformers?
Spoken:Enalish,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,talian
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