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Protective coatings for titanium and their applications and methods of producing titanium ingots

A technology for protecting coatings and titanium ingots, applied in polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve problems such as unsatisfactory protection of titanium ingots, increase production costs and production time, and reduce production costs , the effect of reducing the formation of dissolved oxygen layer

Active Publication Date: 2016-06-15
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects that the existing high-temperature protective coatings are not ideal for the protection of titanium ingots, and provide a new protective coating for titanium and its application and production method for titanium ingots

Method used

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  • Protective coatings for titanium and their applications and methods of producing titanium ingots
  • Protective coatings for titanium and their applications and methods of producing titanium ingots
  • Protective coatings for titanium and their applications and methods of producing titanium ingots

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preparation example Construction

[0029] There is no special requirement for the preparation method of the protective coating for titanium of the present invention, and various methods commonly used in the field can be used, as long as the components are mixed uniformly. However, the inventors of the present invention found in their research that the following method is used to prepare the protective coating for titanium, so that the components can be mixed more uniformly. The specific method is: first mix the oily film-forming agent with the diluent to dilute, then slowly add the oxidation protection agent under stirring, then add the curing agent, stir evenly, then add the dispersant, and stir until it becomes a uniform and stable phase.

[0030] In a second aspect, the present invention provides the application of the protective coating for titanium as described above in the production of titanium ingots.

[0031] In a third aspect, the present invention provides a method for producing a titanium ingot. The...

Embodiment 1

[0046] This embodiment is used to illustrate the protective coating for titanium and the production method of titanium ingot of the present invention.

[0047] (1) At normal temperature and pressure (25°C, 0.1MPa), weigh 100g of oily epoxy resin (solid content 50% by weight) and place it in a container;

[0048] (2) Add 5g of polypropylene glycol diglycidyl ether (purchased from Changzhou Mingtai Chemical Technology Co., Ltd., model: 207), and stir evenly;

[0049] (3) Weigh 800g of Al powder, 50g of Sn powder and 50g of Cu powder, and slowly add them into the container under stirring;

[0050] (4) Weigh 1gSiO2 2 , add to the container, and stir evenly;

[0051] (5) Weigh 0.5 g of polyvinyl alcohol (purchased from Qingdao Anmao International Trade Co., Ltd., Z-200) into a container, stir, and wait until the liquid is in a uniform and stable phase to obtain protective coating A1 for titanium.

[0052] The solid content of protective coating A1 for titanium was determined to ...

Embodiment 2

[0055] This embodiment is used to illustrate the protective coating for titanium and the production method of titanium ingot of the present invention.

[0056] (1) At normal temperature and pressure (25°C, 0.1MPa), weigh 54g of oily epoxy resin (solid content 40% by weight) and place it in a container;

[0057] (2) Add 2.6g propylene oxide butyl ether (purchased from Changzhou Mingtai Chemical Technology Co., Ltd., model: 501), and stir evenly;

[0058] (3) Weigh 770g Al powder, 40g Sn powder and 40g Cu powder, slowly add in the container under stirring;

[0059] (4) Weigh 1.7gSiO2 2 , add to the container, and stir evenly;

[0060] (5) Weigh 0.68g of polyvinylpyrrolidone (purchased from Guangzhou Batai Chemical Co., Ltd., PVPK90) into a container, stir until the liquid is in a uniform and stable phase, and obtain the protective coating A2 for titanium.

[0061] The solids content of protective coating A2 for titanium was determined to be 85%, and the pH value was 7.5.

[...

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Abstract

The invention discloses a protective coating for titanium. The protective coating for titanium is obtained by uniformly mixing a raw material mixture, and the raw material mixture contains an oxidation protection agent and an oily film-forming agent; the oxidation protection agent It contains Al powder, Sn powder and Cu powder, and the weight ratio of Al powder, Sn powder and Cu powder is 1:0.01-0.1:0.01-0.1. Also disclosed is the application of the above-mentioned protective coating for titanium in the production of titanium ingots and a production method for titanium ingots. The protective coating for titanium of the present invention can ensure that the surface of the titanium ingot is not oxidized and cracked at a constant temperature of 1000°C for 8 hours, and can greatly reduce the formation of a dissolved oxygen layer; it has environmental protection effects; the preparation process is simple; various coatings can be used overwrite method. The production method of the titanium ingot of the present invention has good economic and social benefits, and has relatively broad promotion and application prospects in the titanium plate and titanium tube production industry.

Description

technical field [0001] The invention relates to the field of metal high-temperature-resistant coatings, in particular to a protective coating for titanium, an application of the protective coating for titanium in the production of titanium ingots, and a production method for titanium ingots. Background technique [0002] Titanium ingots generally undergo annealing treatment during the production process. Annealing is generally carried out at a high temperature of about 900°C. At high temperatures, oxygen will enter the surface of the titanium ingot to form a hard dissolved oxygen layer. The titanium ingot is heated at 900°C for 4 hours. Deep cracks with a depth of about 20mm will appear on the above surface. In order to ensure the subsequent rolling of titanium tubes and the surface quality of hot-rolled titanium plates, it is necessary to cut and grind the titanium ingots during the rolling process to remove cracks and dissolved oxygen layers, which results in large losses....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/38C09D163/00C09D175/04C09D133/00C09D167/08C21D1/68
Inventor 许哲峰王莹彭琳肖聪李军
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP