stepped screw

stepped screw

[′stept ′skrü]
(design engineering)
A screw from which sectors have been removed, the remaining screw surfaces forming steps.
References in periodicals archive ?
The melt-temperature variation for the tapered and stepped screw is quite large, 15-20[degrees] C (27-36[degrees] F).
The tapered screw and the stepped screw had no mixing elements; therefore, these screws can be expected to result in larger melt-temperature variation.
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