亚洲一二区视频 , 韩日毛片 , 欧美成人国产 , 国产福利写真视频在线观看,国产欧美精品一区二区三区四区,高清欧美日韩一区二区三区在线观看,亚洲高清一区二区三区

Parallel twin screw barrel

Browse:

Brief description:



Relevant Product
Detailed introduction

Product overview:

Specifications:

Screw diameter: Φ 45mm - φ 200mm

Length diameter ratio: 16-35

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)

 


Treatment process:

heat treatment

Nitriding treatment

 

Technical parameters:

Nitriding depth: 0.50mm-0.80mm

Nitriding hardness: 900-1000hv

Nitriding brittleness: < grade 1

Surface roughness: RA 0.4

Straightness of screw: 0.015mm

Product consulting

Message box

  • Product:

  • Your organization:

  • Your name:

  • Contact Tel:

  • Add details:

  • Message content: