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Conical twin-screw/barrel
Specifications: 24 52, 35 76, 45 90, 45 100, 50 105, 51 105, 55 110, 55 120, 58 124, 60 125, 65 120, 65 132, 68 143, 70 135, 70 140, 75 150, 80 143, 8
Product details
specifications：
24/52, 35/76, 45/90, 45/100, 50/105, 51/105, 55/110, 55/120,58/124, 60/125, 65/120, 65/132, 68/143, 70/135,70/140, 75/150, 80/143, 80/156, 92/188, 105/213
The above are standard specifications and can be customized according to customer requirements.
The screw compression ratio can be designed according to different products and formulas.
Base material：
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
Technical Parameter：
heat treatment
Nitriding treatment
Tempered hardness: HB260-290 °
Nitriding hardness: HV900-1100
Nitriding depth: 0.50mm-0.80mm
Nitriding brittleness: ≤ Level 1
Surface roughness: Ra 0.4
Screw straightness: 0.015mm
Hardness of surface chrome plating after nitriding: ≥ 900HV
Chrome plating thickness: 0.05-0.10mm
Dual alloy hardness: HRC56-70
Dual alloy depth: 0.8-2.0mm
24/52, 35/76, 45/90, 45/100, 50/105, 51/105, 55/110, 55/120,58/124, 60/125, 65/120, 65/132, 68/143, 70/135,70/140, 75/150, 80/143, 80/156, 92/188, 105/213
The above are standard specifications and can be customized according to customer requirements.
The screw compression ratio can be designed according to different products and formulas.
Base material：
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
Technical Parameter：
heat treatment
Nitriding treatment
Tempered hardness: HB260-290 °
Nitriding hardness: HV900-1100
Nitriding depth: 0.50mm-0.80mm
Nitriding brittleness: ≤ Level 1
Surface roughness: Ra 0.4
Screw straightness: 0.015mm
Hardness of surface chrome plating after nitriding: ≥ 900HV
Chrome plating thickness: 0.05-0.10mm
Dual alloy hardness: HRC56-70
Dual alloy depth: 0.8-2.0mm
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