Base Materials: SACM645,SCM440,SKD61 Treatment: Nitrided & Bimetallic Hardness: HRC55-HRC70 Suitable for: HDPE/LDPE Blowing
The structure of the screw of the blown film machine:
The screw of the blown film machine is generally composed of the following parts:
1. Film Blowing Machine Screw Body: It is usually composed of a cylindrical spiral-shaped shell with a hollow interior for conveying and compressing plastic particles.
2. Spiral channel: There is a spiral channel on the main body of the screw of the film blowing machine, which is used for the conveying and compression of plastic particles.
3. Feed part: It is used to feed the plastics into the screw body of the blown film machine.
4. Heating Zone: One or more sections of the screw body of the blown film machine are designed as heating zones with built-in heating devices for heating and melting plastic particles.
5. Extrusion Opening: The extrusion port located at the end of the screw body of the blown film machine, which is used to extrude the melted plastic to form a film.
Tech Introduction:
⁕Bimetallic Process :
Basis Materials: SACM645, SACM440, SKD61, SKD11
Hardness: 53-58 HRC
Coating Thickness: 1.5-2.0mm
Allication: Plastic Recycling ≤2 Times, Plastics With Glass Fiber≤35%
Wear resistance: ★★★★★
Corrosion resistance: ★★★
Basis Materials: SACM645, SACM440, SKD61, SKD11
Chrome Thickness: 0.02-0.08mm
Hardness of Chrome: >700 HV
Finish Grade: Ra ≤0.4
Allication: PVC and other high corrosive plastics
Wear resistance: ★★
Corrosion resistance: ★★★★★
⁕Full Hardened Process:
Basis Materials: DC53, D2, M2, SKD61, SKD11 ...
Chemical Composition: C, Si, Cr, Mn, Mo, V, Ni
Hardness: SKD61(HRC56-58), DC53( 62-63 HRC)
Application: PP PA LCP, POM, PPA, PBT, PC, PPS, PEI, PEEK with Glass Fiber ≤50%
Wear resistance: ★★★★★
Corrosion resistance: ★★★★★
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