Model: | 1360123 |
---|---|
Brand: | SZGL (Suzhou Gongle) |
Origin: | Made In China |
Category: | Industrial Supplies / Rubber & Plastics Machine |
Label: | Plastic extruder , One-step sheet extru , Cone double sheet ex |
Price: |
US $10000
/ pc
|
Min. Order: | 1 pc |
Last Online:12 Jun, 2015 |
crew type in order to adapt to the needs of different plastics processing, there are many kinds of screw type, common has the following kinds: graded-index (isometric ranging from deep), the gradient type (such as deep isometric), mutant, torpedo head type 1. Such as the selection of screw screw type selection is mainly based on the physical properties of the plastic and squeeze molding machine production of technical specifications to determine.
Type:
(1) an amorphous polymer softening is completed within a relatively wide temperature, generally choose isometric gradient screw.Crystalline polymer melt temperature range is narrow, generally choose screw isometric mutations.(2) in a small squeeze molding machine, such as phi 45 extrusion molding machine screw is equidistant ranging from deep full thread type, screw length to diameter is small, it is mainly used for extrusion of small section of insulation and sheath layer, extrusion speed faster.Mediumsized screw
(3) the isometric and full thread thread depth gradient type, its length to diameter ratio than small screw, screw thread pitch is equal, from the roots up from shallow to deep.Thread the end of the thread is deeper, the root of the thread, this plastic extrusion amount is more, and shall not affect the strength of screw, extrusion speed, good plastic plasticizing, is generally small and medium-sized squeeze molding machine in the production of insulation and sheath layer ideal screw.(4) a large screw in more than 150 mm in diameter, such as 150, 150, phi phi phi 250 squeeze molding machine.Large screw adopts two types, one is equidistant ranging from deep, such as 150, phi phi 150 squeeze molding machine;2 it is screw is divided into three segments, namely the isometric iso-volumetric ranging from deep, deep isometric range, not deep, such as the phi 250 extrusion molding machine, compression ratio between 2 ~ 3, length to diameter ratio is controlled in 15:1, mainly for the production of large cross section of wire and cable insulation and sheath layer 2, the main parameters of the main parameters of screw screw diameter, length to diameter ratio, compression ratio, pitch, screw, screw groove depth and groove width spiral Angle, the clearance between the screw and barrel, these parameters has a great influence on the extrusion process and performance.1. The screw diameter of Ds
Screw diameter of the thread diameter, squeeze molding machine production capacity (extruded) is proportional to the square of the approximation and the screw diameter, other conditions being the same, screw diameter increases a little, it will cause a significant increase in extrusion quantity, its influence is even better than the screw revolution to improve on the amount of influence is greater.
Payment Terms: | TT |
---|---|