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Triple-roller diameter reducer set

A technology of unit and roll, which is applied in the field of three-roll reducing unit, can solve the problems of increased investment, large roll diameter and frame size, and heavy unit equipment weight, and achieve the effect of saving investment and steel

Inactive Publication Date: 2007-11-21
TAIYUAN TONGZE HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the three-roller reducing unit used in the production of seamless steel pipes has the same roll diameter, which depends on the diameter of the inlet steel pipe. The disadvantage is that for large-diameter steel pipes, the rolls of the whole set Both the diameter and the size of the frame are large, resulting in a large weight of the unit equipment and an increase in investment

Method used

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  • Triple-roller diameter reducer set
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Embodiment Construction

[0013] As shown in Figure 2: n = 30, a = 10, b = 11, representing a set of three-roll reducing unit, a total of 30 single-frame combination. The first 1 to 10 sets form a group of rolls with a diameter of 550 mm, followed by 11 to 30 as a group, the roll diameter is 355 mm, and the corresponding frame diameter is also reduced. This setting can reduce the total weight of the whole unit by 55 tons compared with the existing technology, which can save investment 110 ten thousand yuan.

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Abstract

The invention is concerned with the three-roll reducing mill set for producing seamless steel tube, consists of several uniprocessors, the characteristic is: divides the set into some group, the roll diameter and stand size of the frontal group sets according to the size of the intake steel tube that is bigger, the roll diameter and stand size of the rear group sets according to the need that is smaller. The advantages are: the size of the equipment is reduced; the weight is decrease, which saves steel and cost.

Description

Technical field: [0001] The invention belongs to the technical field of seamless steel pipe production equipment in the metallurgical industry, and in particular relates to a three-roller diameter reducing unit for producing seamless steel pipes. Background technique: [0002] At present, the three-roller reducing unit used in the production of seamless steel pipes has the same roll diameter, which depends on the diameter of the inlet steel pipe. The disadvantage is that for large-diameter steel pipes, the rolls of the whole set The diameter and frame size are very large, resulting in huge weight of unit equipment and increased investment. Invention content: [0003] The purpose of the present invention is to provide a new technical solution, which can effectively overcome the shortcomings of the prior art. [0004] The present invention is achieved in this way: it is a three-roller reducing unit composed of multiple single frames, and is characterized in that the unit is...

Claims

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Application Information

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IPC IPC(8): B21B19/10B21B27/02B21B31/02
Inventor 冀文生程飞生
Owner TAIYUAN TONGZE HEAVY IND