| Description: | |
| Casting Material: | Austempered Ductile Iron, ADI 1200 / QTD 1200-3 / JS 1200-3 / EN-GJS 1200-3 / FCAD-1200-2 / ASTM A 897/M-16 1200-4 |
| Design Software: | CAD, PRO/E, SolidWorks, UG |
| Casting Process: | Sand Coated Casting, Lost Foam Casting, Investment Casting |
| Heat Treatment: | Austempering |
| Machining: | Casting+CNC Machining |
| Surface Finishing: | Shot Blasting, Galvanized/Hot Dip Galvanized, Powder Coated, Spray Painting |
| Package: | Fumigation-Free Pallet or Wooden Case |
ADI casting harvester head knife is a type of knife found on a harvester head, a component of forestry equipment, that is made by pouring molten metal into a mold and allowing it to solidify. These knives are typically made of high-strength steel and are designed to cut and delimb trees efficiently, removing branches and preparing logs for further processing.
Durability: Cast knives are known for their robust construction and ability to withstand the stresses of forestry operations.
Performance: They are designed to provide high-quality delimbing, minimizing friction and ensuring smooth feeding of the trunk.
Efficiency: The long cutting edges of cast knives allow for efficient cutting of branches, reducing the need for excessive force and minimizing wear.
Variety: Knives are available in various sizes and configurations to suit different tree species and harvesting applications.
Delimbing Knives: These knives are used to cut and remove branches from the tree trunk.
Feed Knives: These knives can help to control the movement of the tree trunk through the harvester head.
Debarking Knives: These knives are used to remove the bark from the tree trunk.
Overall, ADI casting harvester head knives are a vital component of modern forestry equipment, offering durability, performance, and efficiency in delimbing and tree processing.
| Property | Value / Requirement | Unit | Remarks |
|---|---|---|---|
| Tensile strength Rm | ≥ 1200 | MPa | Mill test 1200-1320 |
| Yield strength Rp0.2 | ≥ 900 | MPa | +50 MPa vs 2020 edition |
| Elongation after fracture A | ≥ 5 | % | Min. for grade ADI1200-5 |
| Brinell hardness HBW | 340-410 | - | Guidance, wall ≤30 mm |
| Impact energy KV (un-notched, room temp.) | ≥ 55 | J | Mill test 55-75 |
| Rotating-bending fatigue limit σw | 560-660 | MPa | ~12 % above ADI 1050 |
| Contact fatigue limit σH | 2 000-2 400 | MPa | Above carburized low-alloy steel |
| Modulus of elasticity E | ≈ 169 | GPa | Same as lower grades |
| Density ρ | 7.1 | g·cm⁻³ | ~10 % lighter than steel |
| Graphite nodularity | ≥ 85 | % | GB/T 24733-2023 requirement |
| Graphite count | ≥ 100 | pcs/mm² | Same as above |
| Matrix structure | Ausferrite + trace carbides | - | Other phases <5 % |
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