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A kind of preparation method of high corrosion resistance marine titanium plate

A high corrosion resistance, titanium plate technology, applied in the direction of solid-state diffusion coating, coating, metal material coating process, etc., can solve the problem of high cost of titanium metal, increase service life, reduce use cost, and increase corrosion resistance Effect

Active Publication Date: 2020-11-06
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme does not change the corrosion resistance of titanium and titanium alloys. The life of the composite material is proportional to the thickness of the titanium layer, which still cannot fundamentally solve the problem of high cost of titanium metal.

Method used

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  • A kind of preparation method of high corrosion resistance marine titanium plate
  • A kind of preparation method of high corrosion resistance marine titanium plate
  • A kind of preparation method of high corrosion resistance marine titanium plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment includes the following steps:

[0023] Step 1. Degreasing treatment on the surface of the titanium plate: place the titanium plate in an ultrasonic cleaning tank equipped with a metal detergent solution for degreasing treatment on the surface of the titanium plate. The concentration of the detergent is 1%, and the ultrasonic frequency is 20hz. The temperature is 50°C, and the cleaning time is 5 minutes.

[0024] Step 2, descaling treatment on the surface of the titanium plate: wash the titanium plate treated in step 1 with water at 40° C. to remove the residual metal cleaning agent. After that, it is placed in the pickling tank where the acid liquid flows for descaling treatment. The composition of the acid solution is HF:HNO 3 :H 2 O=2:5:11, acid flow velocity 1-2m / min, temperature 50°C, cleaning time 20min.

[0025] Step 3. Pre-annealing treatment of the titanium plate: wash the titanium plate treated in step 2 with water at 40°C to remove residual ...

Embodiment 2

[0035] This embodiment includes the following steps:

[0036] Step 1. Degreasing treatment on the surface of the titanium plate: place the titanium plate in an ultrasonic cleaning tank equipped with a metal detergent solution for degreasing treatment on the surface of the titanium plate. The concentration of the detergent is 2%, and the ultrasonic frequency is 70hz. The temperature is 60°C, and the cleaning time is 10 minutes.

[0037] Step 2, descaling treatment on the surface of the titanium plate: wash the titanium plate treated in step 1 with water at 40-50°C to remove the residual metal detergent. After that, it is placed in the pickling tank where the acid liquid flows for descaling treatment. The composition of the acid solution is HF:HNO 3 :H 2 O=3:6:11, the flow rate of the acid solution is 2m / min, the temperature is 50°C, and the cleaning time is 20min.

[0038]Step 3, pre-annealing treatment of the titanium plate: wash the titanium plate treated in step 2 with 50...

Embodiment 3

[0048] This embodiment includes the following steps:

[0049] Step 1. Degreasing treatment on the surface of the titanium plate: place the titanium plate in an ultrasonic cleaning tank equipped with a metal detergent solution for degreasing treatment on the surface of the titanium plate. The concentration of the detergent is 1.5%, and the ultrasonic frequency is 30hz. The temperature is 55°C, and the cleaning time is 7 minutes.

[0050] Step 2, descaling treatment on the surface of the titanium plate: wash the titanium plate treated in step 1 with water at 45° C. to remove the residual metal cleaning agent. After that, it is placed in the pickling tank where the acid liquid flows for descaling treatment. The composition of the acid solution is HF:HNO 3 :H 2 O=2:5:10, the flow rate of the acid solution is 1m / min, the temperature is 45°C, and the cleaning time is 15min.

[0051] Step 3. Pre-annealing treatment of the titanium plate: wash the titanium plate treated in the seco...

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Abstract

The invention discloses a preparation method of a high-corrosion-resistant marine titanium plate. The method comprises: 1. degreasing treatment on the surface of the titanium plate; 2. descaling treatment on the surface of the titanium plate; 3. pre-annealing of the titanium plate Treatment; 4. Primary pulse oxygen permeation treatment of titanium plate; 5. Secondary temperature pulse oxygen permeation treatment of titanium plate; 6. Final temperature pulse oxygen permeation treatment of titanium plate, finally obtaining high corrosion resistance with deep oxygen permeation layer Titanium plates for marine use. In the present invention, the titanium plate is subjected to step-by-step pulse oxygen permeation treatment to form a deep oxygen permeation layer in the titanium plate while avoiding the formation of an excessively thick oxide layer in the titanium plate. The existence of the deep oxygen-permeable layer greatly increases the corrosion resistance of the titanium plate in the marine environment, thereby prolonging the service life of the composite titanium metal material and reducing the use cost of related devices, which has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of preparation of titanium and titanium alloy plates, in particular to a preparation method of high corrosion resistance marine titanium plates. Background technique [0002] Titanium and titanium alloys have low density, high strength, corrosion resistance, and excellent biocompatibility, so they have been widely used in many fields such as aerospace, navigation, oil exploration, medical equipment, sports and leisure. Especially in industries such as marine and ships, it has an irreplaceable position. However, due to the high price of titanium and titanium alloys, its large-scale application is greatly restricted. In order to take advantage of the corrosion resistance of this type of material and reduce material costs, shipbuilding manufacturers at home and abroad have developed Fe-based composite materials such as titanium-coated outer layers or titanium-steel composite plates. Using this composite mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/12C23C8/02C22F1/18C23F17/00
CPCC22F1/183C23C8/02C23C8/12C23F17/00
Inventor 张聪惠张津肖桂芝何晓梅曾祥康
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY