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Concave press die and sizing machine

A technology of sizing machine and die, applied in the field of sizing machine, can solve the problems of black line defect on the edge of hot-rolled steel plate, user quality objection, affecting the surface quality and yield rate of steel plate, etc., so as to reduce the distance and improve the surface quality. effect on yield

Inactive Publication Date: 2019-10-01
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing pressure sizing machine can basically meet the sizing requirements, the black line defect on the edge of the hot-rolled steel plate after sizing is obvious. The overall length seriously affects the surface quality and yield rate of the steel plate, and user quality objections frequently occur

Method used

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  • Concave press die and sizing machine
  • Concave press die and sizing machine
  • Concave press die and sizing machine

Examples

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Embodiment Construction

[0026] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and / or" includes any a...

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Abstract

The invention discloses a concave press die and a sizing machine. The concave press die and the sizing machine are applied to pressure sizing of a hot rolled steel plate blank. The surface of the side, facing the hot rolled steel plate blank, of the concave press die is provided with a forming groove; the two ends of the forming groove are respectively open at the two end surfaces of the concave press die in the rolling direction of the hot rolled steel plate blank; and the notch width of the forming groove is larger than the thickness of the hot rolled steel plate blank; and the groove bottomwidth of the forming groove is smaller than the thickness of the hot rolled steel plate blank. The concave press die and the sizing machine effectively solve the defect of black lines at the edges ofhot-rolled steel plates, improve the surface quality and the yield of the hot-rolled steel plates, and eliminate the quality objection of users.

Description

technical field [0001] The invention relates to the technical field of width-fixing machines, in particular to a concave die and a width-fixing machine. Background technique [0002] The pressure sizing machine is an important part of the steel rolling production line and is used to perform the sizing process. The pressure width setting machine is located after the dephosphorization machine and before the rough rolling mill. It changes the width of the slab by continuous lateral pressure on the slab in the entire length direction to meet the width requirements of different hot-rolled steel plate specifications. Although the existing pressure sizing machine can basically meet the sizing requirements, the black line defect on the edge of the hot-rolled steel plate after sizing is obvious. The overall length seriously affects the surface quality and yield rate of the steel plate, and user quality objections frequently occur. Contents of the invention [0003] In order to ov...

Claims

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Application Information

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IPC IPC(8): B21B37/22
CPCB21B37/22
Inventor 王晶张鹏武周一中陈刚贾雁
Owner 武汉钢铁有限公司
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