上海11选5开奖结果

Conical twin screw

Conical twin screw

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Product Details

Specification:

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 different formulations。

Base material:

1) 38CrMoAlA (JIS SACM645)

2) 42CrMo (AISI 4140)

3) 4Cr5MoSi V1 (JIS SKD-61)

Processing process:

Heat treatment

Nitriding treatment

Technical Parameters:

Nitriding depth: 0.50mm-0.80mm

Nitriding hardness: 900-1000HV

Nitrided brittleness: <= 1 level

上海11选5开奖结果Surface roughness: Ra 0。4

Screw straightness: 0。015mm

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