擠出機螺桿與機筒：

Single screw and barrel of extruder machine

規格：

直徑：φ15～φ300

長徑比:L/D=15～55

Standards：

Diameter:φ15-φ300

Ratio of Length to Diameter :15～55

材料：

優質合金鋼

(1) 38CrMoAlA (JIS SACM645)

(2) 42CrMo (AISI 4140)      

(3) 4Cr5MoSiV1 (JIS SKD-61)

Material:

Alloy-Steel of High-quality

(1) 38CrMoAlA (JIS SACM645)

(2) 42CrMo (AISI 4140)      

(3) 4Cr5MoSiV1 (JIS SKD-61)

熱處理：

(1)滲氮處理

(2)電鍍硬鉻層

(3)高頻淬火

(4)噴涂雙金屬合金層

（5）真空淬火

Heat-treatment:

（1）       Nitriding treatment

（2）       Electroplated hard-chrome

（3）       High-frequency quenching

（4）       Spray coating Bimetallic-alloy

（5）       Vacuum quenching

主要技術指標：

調制硬度：240～280HV

氮化硬度：900～1020HV

氮化層深度：0.5～0.8mm

氮化脆性：≤二級

表面粗糙度：Ra0.4um/m

螺桿直線度：0.015mm/m

氮化后表面鍍硬鉻度：≥900HV

鍍鉻層厚度：0.05～0.10mm

雙合金硬度：HRC56°～65°（合金采用鎳基合金）

 合金深度：0.8～2.0mm

Main technical specifications::

Technical: Nitriding treatment, alloy coating spraying, heating treatment, screw fully hardening,

Hardness After Hardening & Tempering : 240-280 HV

Nitrided Hardness : 900-1020 HV

Nitrided Case Depth: 0. 5~0.8mm

Nitrided Brittleness: Less Than Grade 2

Surface Roughness: Ra 0.4um/m

Screw Straightness: 0.015mm/m

Surface Chromium-Plating''s Hardness After Nitriding:≥900HV

Chromium-Plating Depth: 0.05~0.10mm

Alloy Hardness: HRC50°-65°

Alloy Depth: 0.8~2.0mm

螺桿可選用普通型、漸變型、突變型、銷釘型、屏障型、排氣型等。

螺桿的壓縮比根據不同的原料設計，也可按用戶要求進行設計。

Screw can be selected from ordinary,gradual,mutational,pinned,shielding,separating and exhausting types.

The compression ratio of screw can be desingned according to different raw material-s and requirements of clients.