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A kind of preparation method of titanium-steel composite plate

A composite plate and titanium steel technology, applied in manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problems of interface reaction affecting the bonding performance of composite plates, reducing submerged arc sealing welding, ensuring vacuum degree, and simple operation Effect

Active Publication Date: 2020-08-18
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to solve the serious interface reaction that affects the bonding performance of the composite plate when the titanium steel clad plate is prepared by the vacuum rolling method, the present invention provides a preparation method for the titanium steel clad plate

Method used

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  • A kind of preparation method of titanium-steel composite plate
  • A kind of preparation method of titanium-steel composite plate
  • A kind of preparation method of titanium-steel composite plate

Examples

Experimental program
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Effect test

Embodiment 1

[0029] In this embodiment, the Q235B steel grade with a substrate thickness of 66 mm is selected, the industrial pure titanium TA2 with a thickness of 6 mm as a cladding material, and a TA2 / Q235B composite plate with a thickness of 0.5+5.5 mm as a rolled product.

[0030] Ⅰ. Surface treatment: Grind the surface to be compounded of two Q235B substrate blanks and two TA2 cladding blanks, remove the rust layer and oxide layer on the surface of the blanks, and expose the fresh metal on the surface completely.

[0031] Ⅱ. Application of release agent: Apply release agent to the unpolished surface of the cladding material, and then dry the release agent.

[0032] Ⅲ. Symmetrically combined blank: select one of the base materials as the blank, and fix it with seal spot welding around the surface to be compounded. The width of the seal is 30mm and the thickness is 13mm. The base material is to be compounded in the groove surrounded by the seal. every 0.5 meters (see figure 1 Arrow dis...

Embodiment 2

[0039] In this embodiment, a Q345B steel grade with a substrate blank thickness of 100 mm, a TA2 industrial pure titanium plate with a thickness of 10 mm as a cladding material blank, and a TA2 / Q345B composite plate with a thickness of 2+20 mm as a rolled product are selected.

[0040] Ⅰ. Surface treatment: Grind the surface to be compounded of two Q345B substrate blanks and two TA2 cladding blanks, remove the rust layer and oxide layer on the surface of the blanks, and expose the fresh metal completely on the surface.

[0041] Ⅱ. Application of release agent: Apply release agent to the unpolished surface of the cladding material, and then dry the release agent.

[0042] Ⅲ. Symmetrically combined blank: select one of the base materials as the blank, and fix it with seal spot welding around the surface to be compounded. The width of the seal is 45mm and the thickness is 23mm. The base material is to be compounded in the groove surrounded by the seal. Place a circular lamination a...

Embodiment 3

[0049] In this embodiment, a Q370R steel grade with a substrate thickness of 275mm is selected, a TA1 industrial pure titanium with a cladding thickness of 25mm, and a rolled TA1 / Q370R composite plate with a thickness of 5+55mm.

[0050] Ⅰ. Surface treatment: Grind the surface to be compounded of two Q370R base material blanks and two TA1 cladding material blanks, remove the rust layer and oxide layer on the surface of the blanks, and completely expose the fresh metal on the surface.

[0051] Ⅱ. Application of release agent: Apply release agent to the unpolished surface of the cladding material, and then dry the release agent.

[0052] Ⅲ. Symmetrically combined blank: select one of the base materials as the blank, and fix it with seal spot welding around the surface to be compounded. The width of the seal is 60mm and the thickness is 54mm. The base material is to be compounded in the groove surrounded by the seal. Place a circular lamination at intervals of 1.5 meters, the lam...

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Abstract

A method for preparing a titanium-steel composite plate. The titanium-steel composite plate with excellent bonding performance is prepared by means of blank preparation, surface treatment, separation agent coating, symmetric blanking, electron beam welding, heating, rolling, straightening, and plate cutting processes. A spacer (2) is added to an interface between the titanium and the steel by means of a blanking process, such that titanium and steel in a composite blank do not completely contact with each other, element interdiffusion is prevented during a heating process, and the formation of brittle phases such as carbides and intermetallic compounds on the interface is controlled. Subsequently, an interface oxide film is corrupted by means of large-reduction rolling, such that the formation of a new titanium-steel bonding interface and full metallurgical bonding are achieved. In addition, fast cooling after rolling is performed to suppress further formation of brittle phases, such that a titanium-steel composite plate with excellent bonding performance and no brittle phases is prepared. Compared with methods requiring additional nickel or copper foils as intermediate layers, the method has simpler steps, lower costs, and excellent bonding performance.

Description

technical field [0001] The invention belongs to the technical field of bimetal composite manufacturing, and relates to the preparation of a composite plate, in particular to a preparation method of a titanium-steel composite plate. Background technique [0002] Titanium has significantly excellent corrosion resistance. In most corrosive environments, its corrosion resistance exceeds that of stainless steel. Therefore, it is widely used in chemical equipment, pressure vessels, heat exchangers, offshore operating platforms, aerospace and other fields. . However, titanium is expensive, which increases the material cost of equipment manufacturing, which limits the use of titanium. The titanium-steel composite plate has both the excellent corrosion resistance of titanium and the strength and toughness of steel, and greatly reduces the amount of titanium used, saving costs, and has high economic value and good application prospects. [0003] At present, the main preparation meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23K15/0033B23K15/008B23K15/0093B23K15/06B23K2101/34B23K2103/04B23K2103/14
Inventor 曾周燏江姗党军李东晖
Owner NANJING IRON & STEEL CO LTD
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