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Production process for hot-rolled composite blank

A production process and hot-rolled cladding technology, which is used in manufacturing tools, metal rolling, and metal processing equipment, etc., can solve the problems of large climate impact of explosive cladding, not meeting environmental-friendly requirements, and difficult to guarantee mass production. The effect of ensuring vacuum degree, improving weldability and reducing difficulty

Inactive Publication Date: 2015-04-29
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Explosive composite billets are greatly affected by the climate, consume a lot of energy, do not meet the requirements of environmental friendliness, and are affected by weather and other factors, and mass production is difficult to guarantee
Patent 200510033984.4 provides a processing method of brazed hot-rolled composite billet. After the method is welded and sealed, the hole is drilled and vacuumed, and the vacuum degree is not easy to ensure; this patent also places brazing material between the base metal plate and the cladding metal plate, After vacuuming, the composite billet is heated to above the melting point of the brazing material, and then it is hot-pressed on a press and then cooled

Method used

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  • Production process for hot-rolled composite blank
  • Production process for hot-rolled composite blank
  • Production process for hot-rolled composite blank

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Example 1 A production process of a hot-rolled composite billet, the hot-rolled composite billet includes two base metal plates 1, two clad metal plates 2, a high-temperature anti-adhesive agent 3 and a substrate metal strip 4, and the clad metal plate The side lengths of 2 are all smaller than the side lengths of base metal plate 1, and the production process includes the following steps:

[0026] (1) Clean the base metal plate and the clad metal plate, and use a milling machine to clean the surface of the composite surface to make the surface clean;

[0027] (2) Stack two clad metal plates 2, place light magnesium oxide superfine powder (high temperature anti-sticking agent 3) between the clad metal plates, and place the stacked clad metal plates on the two base metal plates In the middle of the plate 1, and the distance from the corresponding two sides of the clad metal plate 2 to the corresponding two sides of the base metal plate 1 is equal;

[0028] (3) Place the...

Embodiment 2

[0034] Example 2 A production process of a hot-rolled composite blank, 30mm (5mm+25mm) thick 304 / Q345B stainless steel / carbon steel composite plate, the size of the composite plate blank: 240×1620×2500 (mm), including two base metals Plate 1, two clad metal plates 2, high temperature anti-adhesive agent 3 and substrate metal strip 4; the base metal plate 1 is a 100mm thick Q235B steel plate with a size of 100×1620×2500mm (mm); the clad metal The plate 2 is a 20mm thick 304 stainless steel plate with a size of 20×1500×2380mm (mm); the high-temperature anti-sticking agent 3 is alumina superfine powder; the substrate metal strip 4 includes two pieces of 40×50×2500 (mm) Q235B steel strips and two 40×50×1520 (mm) Q235B steel strips.

[0035] The production process includes the following steps:

[0036] (1) Clean the base metal plate 1 and the clad metal plate 2 to make the surface clean; use a milling machine to clean the surfaces of the two base metal plates 1 and the clad metal ...

Embodiment 3

[0042] Example 3 A hot-rolled composite billet, a production process of 13 (1+12) mm thick TA2 / Q235B titanium-steel composite plate, the composite plate includes two base metal plates 1, two clad metal plates 2, High-temperature anti-adhesive agent 3 and substrate metal strip 4, the base metal plate is a 120mm thick Q235B steel plate with a size of 120×1620×2300 (mm), and the multilayer metal plate is a 10mm thick TA2 titanium plate with a size of: 10×1500×2180 (mm), the high-temperature anti-adhesive agent 3 is light magnesium oxide ultrafine powder, the substrate metal strip 4 is Q235B steel strip, and the size is 20×50×2300 (mm). The size is 20×50×1520 (mm) two pieces;

[0043] The production process includes the following steps:

[0044](1) Clean the base metal plate 1 and the clad metal plate 2 to make the surface clean; use a milling machine to clean the surfaces of the base metal plate 1 and the clad metal plate 2;

[0045] (2) Stack two clad metal plates 2, place lig...

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Abstract

The invention relates to a production process of a hot-rolled composite blank. The production process comprises the following steps of: (1), cleaning base metal plates and clad metal plates, and cleaning the surface of a to-be-composited surface by use of a milling machine so that the surface is clean; (2), putting a high-temperature antisticking agent between the two clad metal plates, and putting the two superposed clad metal pates between the two base metal plates; (3), putting base plate metal strips at the parts, which are adjacent to the edges, of a gap between the two base metal plates, and performing spot welding on the base metal plates and the base plate metal strips so that the metal plates are fixed to form a blank; (4), sealing the peripheral edges of the blank by virtue of welding the blank via vacuum electron beam welding so as to form a dual-metal composite steel plate blank; and (5) heating the dual-metal composite steel plate blank in a heating furnace, discharging the blank out of the heating furnace, rolling the blank by virtue of a high-power medium and heavy plate mill, straightening after rolling, and trimming to obtain the hot-rolled composite blank. The production process is simple, good in combination quality, high in efficiency, relatively low in production cost, short in period, easy for production organization and low in loss.

Description

technical field [0001] The invention relates to a production process of a hot-rolled composite billet, belonging to the field of metal material production. Background technique [0002] Metal composite panels have been widely used in energy, petroleum, chemical, marine, mining and other industries. With the deepening of the understanding of metal composite panels, people's demand for composite panel products is increasing. In order to improve efficiency and reduce production costs, the production process of composite blanks has been continuously improved to adapt to the continuous increase in demand for composite panels. [0003] Explosive composite assembly is greatly affected by climate, consumes a lot of energy, does not meet the requirements of environmental friendliness, and is difficult to guarantee mass production due to weather and other factors. Patent 200510033984.4 provides a processing method of brazed hot-rolled composite billet. After the method is welded and ...

Claims

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Application Information

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IPC IPC(8): B21B1/38B23K15/06
CPCB21B1/38B21B2001/386B23K15/06
Inventor 梁英赵乾尹世友楚世豪
Owner SHANDONG IRON & STEEL CO LTD
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