Chemical fiber spinning screw barrel
Professional Bimetallic Screw Barrel & Plastic Machinery Parts Manufacturer
Chemical fiber spinning screw barrel
Description
Fiber spinning extruder screw polyester PET; Nylon PA6, PA66, PA1010; Nylon PP can be divided into filament, short fiber, irregular fiber, composite fiber, and deformed filament according to their geometric shapes. Long filaments are further divided into single filaments and double filaments
Monofilament: Only one filament, transparent, uniform, and thin.
Composite filament: Several single filaments combined to form a filament strip. Short fibers: Chemical fibers can be cut into fibers of various lengths and specifications during post spinning processing. Alien fibers: fibers with different cross-sections or hollow shapes made by changing the shape of the spinneret. Classified by purpose: ordinary fiber and special fiber. ordinary fiber: regenerated fiber, composite fiber. Special fiber: high temperature resistant fiber, high-strength fiber, high modulus fiber, and radiation resistant fiber. Our company undertakes surveying and design of screw barrels to meet the above-mentioned fiber processing and production needs.
Specification:
Chemical fiber spinning extruder
Specifications: Φ 60mm~ Φ 250mm
Material:38CrMoAlA
Process:nitriding & bimetallic
Nitrided Hardness:HV900-HV1000
Nitrided Case Depth:0.45-0.8mm
Nitrided Brittleness:Less than Grade 2
Surface Roughness:Ra 0.4
Screw Straightness:R0.015mm
Length diameter ratio：1: (24-33)
bimetallic ：alloy layer 2-2.5
Technical Information:
Main Base materials | 1.38CrMoAlA (SACM645) | Main Alloy Materials | 1. Ni-based alloy/Deloro alloy |
2. SKD-61 (Special Tool Steel) | 2. Tungsten carbide/Wolfram carbide | ||
3. 42CrMo (Ultrahigh StrengthSteel) | 3. NiCo-based alloy | ||
4. DC53 (Cold WorkDie Steel) | 4. Fe-based alloy | ||
5. W6Mo5Cr4V2 (High-SpeedToolSteel) | 5. Co-based alloy | ||
Processing Technics | 1. Heat treatment | Technical parameters | Nitriding layer depth:0.5-0.8mm |
2. Quenching | Nitrided hardness:900-1000HV | ||
3. Nitriding treatment | Bimetallic layer depth:3 mm | ||
4. Bimetallic alloy welding for screw | Bimetallic hardness:58~66HRC | ||
5. Bimetallic alloy centrifugal casting for barrel | Hard-chrome plating hardness after nitriding:≥950HV | ||
6. Hard-chrome electroplating | Chrome-plating layer depth:0.03-0.09mm | ||
Linearity of screw:0.015mm | Surface roughness:Ra 0.4 |
Application product
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| Paper Industries | Plastic Cable | Blown-Film-Extrusion | Plastic Granulate | Plastic-Moulded-Furniture | Plastic-Moulded-Furniture |
