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Production method of metallurgical composite channel steel

A production method and composite channel technology, which is applied in the field of composite steel production, can solve the problems of high price of single precious metal alloy channel steel, and achieve the effects of improving material utilization, long service life and improving economic benefits

Inactive Publication Date: 2013-04-17
XINXING DUCTILE IRON PIPES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current channel steel material is a single alloy
With the development of society, the utilization of resources is increasing, and the single precious metal alloy channel steel is expensive. In order to meet the higher performance requirements and reduce the cost, there is an urgent need for a composite metal channel steel

Method used

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  • Production method of metallurgical composite channel steel

Examples

Experimental program
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Effect test

example 1

[0039] (1) The composite channel steel base material is 16Mn, the composite layer material is 304, and the product specification is 120mm×53mm×6mm (base layer 4mm+multilayer 2mm).

[0040] (2) Centrifugal casting composite steel pipe slab

[0041] The cast steel billet has an outer diameter of φ580mm, a middle diameter of 446mm, an inner diameter of φ380mm and a length of 3500mm.

[0042] (3) Composite steel pipe billet for rough machining

[0043] The cast composite steel pipe is subjected to internal boring and external peeling processing to remove pores on the external surface and slag layer on the internal surface. The size of the processed steel pipe is φ574mm / φ385mm×3500mm.

[0044] (4) Composite steel pipe billet cutting

[0045] Cut the composite steel pipe billet into two symmetrical arc-shaped plates along the axial direction with a sawing machine or a water jet.

[0046] (5) The curved plate is heated and rolled into a flat plate

[0047] The arc-shaped plate ...

example 2

[0054] (1) The composite channel steel base material is 20MnV, the composite layer material is 321, and the product specification is 140mm×62mm×8mm (base layer 5mm+multilayer 3mm).

[0055] (2) Centrifugal casting composite steel pipe slab

[0056] The cast steel billet has an outer diameter of φ780mm, a middle diameter of 656mm, an inner diameter of φ580mm and a length of 3800mm.

[0057] (3) Composite steel pipe billet for rough machining

[0058] The cast composite steel pipe is subjected to internal boring and external peeling processing to remove pores on the external surface and slag layer on the internal surface. The size of the processed steel pipe is φ774mm / φ586mm×3800mm.

[0059] (4) Composite steel pipe billet cutting

[0060] Cut the composite steel pipe billet into two symmetrical arc-shaped plates along the axial direction with a sawing machine or a water jet.

[0061] (5) The curved plate is heated and rolled into a flat plate

[0062] The arc-shaped p...

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Abstract

The invention discloses a production method of metallurgical composite channel steel. The main difference between the production method of the metallurgical composite channel steel and the traditional channel steel and the production method thereof is that a metallurgical composite pipe produced by utilizing a centrifugal casting process is used as a blank for producing the channel steel. The production method comprises the production steps of (1) producing a metallurgical composite pipe blank by using the centrifugal casting process; (2) symmetrically cutting the metallurgical composite pipe blank into two arc boards along an axial direction; (3) heating the arc boards to a plasticity temperature section of a composite steel tube base material, rolling and flattening by using a plate mill to form a composite flat steel board, and rolling the composite flat steel board according to a thickness requirement; (4) heating the rolled composite flat steel board, and producing a channel steel board meeting the requirements through hot-rolling; and (5) cutting a steel board strip in the middle of the channel steel board to prepare the metallurgical composite channel steel. A two-layered alloy in the channel steel produced by the invention has a metallurgical fusing layer; layering is different to realize; the service life is long; precious metal is saved for the channel steel made of single-alloy stainless steel material; and the economical benefits can be improved.

Description

technical field [0001] The invention relates to the technical field of composite steel production, in particular to a method for producing metallurgical composite channel steel. Background technique [0002] At present, there are various types of profiles in China, including composite pipes of various specifications, but no composite channel steel. The current channel steel material is a single alloy. With the development of society, the utilization of resources is increasing, and the single precious metal alloy channel steel is expensive. In order to meet the higher performance requirements and reduce the cost, a composite metal channel steel is urgently needed. Xinxing Casting Pipe Co., Ltd. has successfully developed and produced composite pipes of various specifications by preparing the metallurgical bonded composite pipe billet through the centrifugal casting process, and then performing a certain plastic deformation on the billet. In order to reduce the use of precio...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 张同波王黎晖刘跃强叶海潮于满王明新王锦永申勇宋亚峰
Owner XINXING DUCTILE IRON PIPES CO LTD
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