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Hastelloy steel-steel composite plate and preparation method thereof

A technology of alloy steel and composite plate, which is applied in the field of preparation and processing of Hastelloy steel-steel composite materials, can solve the problems of insufficient bonding strength, limited performance and application fields, and lower than another material, so as to improve production efficiency , reduce costs, and ensure the effect of interface bonding strength

Inactive Publication Date: 2021-01-05
JIANGSU RUNBANG NEW MATERIAL GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some disadvantages in the solid-liquid composite method, that is, because the melting point of one material is much lower than that of another material, it can only be coated on the surface of a certain material, and the thickness of the coating layer is only 0.5-2mm
On the other hand, the bonding strength between the two metal layers of the layered composite plate prepared by rolling cladding or thermal diffusion cladding alone is insufficient, which limits its performance and application fields.

Method used

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  • Hastelloy steel-steel composite plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation process of the Hastelloy steel-steel composite plate with a thickness of 4mm is as follows:

[0028] (1) Hastelloy steel welded billet assembly: two pieces of Hastelloy steel plates with a thickness of 3mm and dimensions of 900×900mm are closely attached, and their edges are welded together;

[0029] (2) surface treatment: the outer surface of the welded Hastelloy steel slab is cleaned and shot blasted to remove the oxide layer;

[0030] (3) Solid-liquid cladding: immerse the surface-treated Hastelloy steel slab into molten Q195AF steel at a temperature of 1550-1650°C for 6-12 minutes, so that the surface of the Hastelloy steel plate is clad with a thickness of 1mm Q195AF steel layer to obtain the Hastelloy steel-Q195AF steel composite plate blank.

[0031] (4) Surface treatment: The upper and lower surfaces of the Hastelloy steel-Q195AF steel composite plate blank after solid-liquid cladding are cleaned, shot blasted and polished to remove oxides, impu...

Embodiment 2

[0037] The preparation process of the Hastelloy steel-steel composite plate with a thickness of 5 mm is as follows:

[0038] For the Hastelloy steel-steel clad plate described in specific embodiment 1, also can adopt another kind of specification, the material of thickness to prepare:

[0039] (1) Welding of Hastelloy steel plates: two pieces of Hastelloy steel plates with a thickness of 4mm and a size of 920×920mm are closely attached, and their edges are welded together;

[0040] (2) surface treatment: the surface of the welded Hastelloy steel slab is cleaned and shot blasted to remove the oxide layer;

[0041] (3) Solid-liquid cladding: immerse the surface-treated Hastelloy steel slab into molten Q235AF steel at a temperature of 1550-1650°C for 20-30 minutes, so that the surface of the Hastelloy steel plate is clad with a thickness of The Q235AF steel layer of 1mm obtains the Hastelloy steel-Q235AF steel composite plate blank;

[0042] (4) Surface treatment: Clean, shot b...

Embodiment 3

[0048] according to figure 1 Described flow chart, thickness is the preparation technology of 5mm Hastelloy steel-Q295A steel clad plate as follows:

[0049] (1) Welding of Hastelloy steel plates: two pieces of Hastelloy steel plates with a thickness of 5mm and a size of 850×850mm are closely attached, and their edges are welded together;

[0050] (2) Surface treatment: the outer surface of the welded Hastelloy steel slab is cleaned and shot blasted to remove the oxide layer;

[0051] (3) Solid-liquid cladding: immerse the surface-treated Hastelloy steel plate into molten Q295A molten steel at a temperature of 700-750°C for 10-20 minutes, so that the surface of the Hastelloy steel plate is clad with a thickness of 0.5mm 1Q295A steel layer, to obtain Hastelloy steel-Q295A steel composite plate blank;

[0052] (4) Surface treatment: the upper and lower surfaces of the solid-liquid cladding Hastelloy-Q295A steel composite plate blank are cleaned, shot blasted and polished to re...

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Abstract

The invention provides a Hastelloy steel-steel composite plate and a preparation method thereof. The Hastelloy steel-stainless steel composite plate is formed by rolling a base layer and a coating andthen conducting heat treatment at the temperature of 650-850 DEG C, the base layer is a Hastelloy steel, the coating is a steel layer, the thickness of the Hastelloy steel-steel composite plate is 4-8 millimeters, the composite ratio of the coating is 20%-76%, the composite ratio of the base layer is 30%-84%, the bonding strength of the base layer and the coating of the Hastelloy steel-steel composite plate is high and reaches 56 N / mm, and the Hastelloy steel-steel composite plate is not prone to layering. The prepared Hastelloy steel-steel composite plate has the advantages of high temperature resistance, high corrosion resistance and the like, and can be widely applied to the fields of aerospace, petrochemical engineering, steamship manufacturing, power electronics and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation and processing of Hastelloy steel-steel composite materials, and combines the principles of solid-liquid composite, diffusion composite and rolling composite to provide a new type of Hastelloy steel-steel composite plate and its preparation method. Background technique [0002] Layered Hastelloy steel-steel clad plate is a composite material composed of Hastelloy steel and steel. It has the excellent properties of both materials and can be widely used in aerospace, petrochemical, shipbuilding, power electronics and other fields. [0003] Hastelloy steel-steel clad plate and its preparation method have always been a research hotspot of materials. At present, explosive cladding, rolling cladding, and thermal diffusion cladding have been reported. Among them, explosive composite is one of the most important production methods for composite panels. This method uses the instantaneous huge energy...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 史航史和生杨文芬王高天周杰蔡庆伍
Owner JIANGSU RUNBANG NEW MATERIAL GRP CO LTD
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