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. |