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Committed to developing high-end products that meet market demand
COMMITTED TO DEVELOPING HIGH-END PRODUCTS THAT MEET MARKET DEMAND
Learn moreCompany Establishment Date
Special alloy steel for making barrel
Invention Patents
Cooperative Clients
Why choose us ?
Emphasizing independent innovation and adhering to scientific development, Shuangli has always been at the forefront of technological research and development. It was the first in the same industry to develop and produce iron-based alloy tubes.
Leading technology
Develop high-end products that meet market demand
Mature craft
Advanced Vacuum Sintering Technology
Strict Quality Control
Introduce advanced design concepts and combine with CNC screw root grinding machines
Perfect service
The needs of our customers are the direction of our efforts
Sharing the Economic Factors of Extruder Screw Design
For any technical problem, it is totally wrong to ignore the economy of design. In some cases, the rationality of screw design must be analyzed more comprehensively, that is, from the perspective of economy.
Functional characteristics of exhaust screw
In the extrusion process, the gas to be discharged from the raw material includes three parts: the air brought in between the raw material particles; Moisture adsorbed on granular materials; Gases or liquids contained in raw materials, such as residual monomers, low molecular volatiles and water, etc.