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Rolling process control Roll forming a very short time

time:2010-05-25 11:40from:未知 Author:admin click:Times

Rolling process control Roll forming a very short time


Rolling process control
        Roll forming a very short time, pressure from the mud and start to roll out green body, a total of only 2-6 seconds, while the actual loading time for mud only 2-4S. Let us visualize the rolling process is divided into three phases: the first stage for the next pressing, rolling first came into contact with mud, then move to light, pressure mud velocity should be appropriate. Heavy or excessive action will crush under the pressure model, or even no air emission caused by "air drum" defects. Forming some of the major products (for example 10 1 / 2 inch flat panel, etc.), to facilitate ease stamping mud mud cloth speed, mud cloth before preloading. Under the pressure Roll forming machine of the first slow roll also negative, mud easily stick roller head; second stage is a rolling stage: at this time sludge was reduced to the required thickness, the surface began to catch light green body, Yuni continues to drain, then roll head Action to be heavy but smooth, compression 2-4S; third stage is the rise of stages: the first carried away from the forming machine green body roll at this time to require slow to reduce mud pressure. If the first roll from the billet surface too quickly, is easy to produce "the rise of thread." However, barren mud compound obvious thing for a long time.
        Operation of the rolling process is a rolling machine to control the cam mechanism, so the process operation requirements are the main basis for design of the cam.

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