The authors evaluate the degree of agreement between results obtained from piercing continuous-cast semifinished products on a cross-rolling piercing mill and the indices of this process determined by finite- element modeling. New piercing-mill equipment has been developed to make thin-walled hollows. Computer software is used to evaluate the …
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Good stress-strain state in the deformation zone can be achieved during cross-roll piercing (three-roll skew rolling) which allows production of …
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Model NO.: as the drawing Condition: New Certification: CE, ISO9001 Standard: DIN, ASTM, GB Customized: Customized Material: Cast Steel
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The cross-roll piercing and elongation (CPE) is a forming process performed at high temperatures and high strain rates. The final product quality is strongly dependent on its microstructure.
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No matter it is plug mill process or mandrel mill process, a solid round (billet) is used. It is uniformly heated in the rotary hearth heating furnace and then pierced by a Mannesmann piercer. The pierced billet or hollow shell is rolling …
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The cross-roll piercing and elongation (CPE) is a forming process performed at high temperatures and high strain rates. The final product quality is strongly dependent on its microstructure.
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Download scientific diagram | Power consumption of the cross-roll piercing mill. from publication: Modelling of the cone-type rotary piercing process and analysis of the seamless tube longitudinal ...
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The CPE (Cross Roll Piercing and Elongation) process begins with the piercing of a hot billet on the piercer, followed by crimping and then elongation on the push-bench and …
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The article presents a comparison of the piercing process conducted in a two-roll Diescher mill and a three-roll mill.
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(a) Schematic configuration of a cross-roll piercing mill. (b) Description of cone angles ′ and ″ on a roll profile. (c) Description of the feed angle .
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This page provides information covering the topic of metal rolling. This forming process is discussed in detail, including topics such as basic principles, different rolled product, grain structure, defects, rolls and rolling mills
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Hot rolling piercing mill machinery is cone type skew rolling mill; it is the most important deforming process to make seamless steel pipe. The round billets is heated to a certain temperature and pierced on piercing mill to get hollow pipe. It is widely used to make seamless tube. The raw materials are carbon steel, stainless steel, alloy steel etc.
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A complete numerical simulation of the cross-roll pierc- ing process has established the sensitivity of kinematical and mechanical variables to the 4 coefficients of friction which govern the process.
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Plugmill Technology. Plug Mill Process is a proven process for manufacturing of higher diameter Seamless Pipes by heating round billets up to the plastic stage of steel and piercing in a Cross Roll Piercer. Further elongation is achieved through a Plug Mill in which the thick wall hot hollow is rolled through a pair of Top and Bottom Rolls with ...
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The roll of the piercing mill rotates in the same direction, the roll axis is inclined to the rolling line at a certain angle, and the tube blank is driven by the rolling friction force and rotates in the opposite direction to the rotation direction of the roll and at the same time moves along the axial direction, that is, it moves forward while rotating, …
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This paper develops an online monitoring technique to detect abnormal conditions in the cross-roll piercing mill. Based on an image-sensing technique, process operation condition can be extracted ...
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Abstract. The chapter deals with cross rolling where the workpiece is rotated by 90° in the rolling plane after each rolling pass. The chapter begins with basics of metal rolling, and later on focuses on cross rolling. A short introduction to texture and its representation is presented followed by an overview of the formation of deformation ...
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Wall-thickness eccentricity is a major dimensional deviation problem in seamless steel tube production. Although eccentricity is mainly caused by abnormal process conditions in the cross-roll piercing mill, most seamless tube plants lack the monitoring at the hot piercing stage but only inspect the quality of finished tubes using ultrasonic testing (UT) at the …
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The article presents a comparison of the piercing process conducted in a two-roll Diescher mill and a three-roll mill. The comparative analysis was based on the numerical simulations of the aforementioned processes, obtained using Forge NxT 1.1. software. It was stated that the most favourable manufacturing method is skew rolling in three-mill …
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Although eccentricity is mainly caused by abnormal process conditions in the cross-roll piercing mill, most seamless tube plants lack the monitoring at the hot piercing stage …
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The cross-roll piercing and elongation (CPE) is a forming process performed at high temperatures and high strain rates. The final product quality is strongly dependent on its microstructure.
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A cone-type piercing mill was developed by the authors for materials with poor hot workability. This piercing mill is called "the super piercer" in Europe and America. This mill has a pair of cone-type main rolls supported at both ends with their roll axes inclined and crossed so as to enable piercing at high feed and cross angles. In order to …
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cross roll piercing elongation mill, cpe in Chinese : …. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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Typical seamless tube production processes are an extrusion and a rotary tube piercing. The rotary piercing process is more competitive than the extrusion process from the viewpoint of flexibility. Main components of this equipment are twin rolling mills and a plug. Twin rolling mills are installed on a skew with proper angles in two directions. These …
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