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Protective coating used for titanium, applications thereof and titanium ingot producing method

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 cost and production time, and improve yield , the effect of reducing production costs

Active Publication Date: 2014-11-26
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 coating used for titanium, applications thereof and titanium ingot producing method
  • Protective coating used for titanium, applications thereof and titanium ingot producing method
  • Protective coating used for titanium, applications thereof and titanium ingot producing method

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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 Al powder, 50g Sn powder and 50g Cu powder, and slowly add them into the container under stirring;

[0050] (4) Weigh 1g SiO 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 be 90%, a...

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, and slowly add them into the container under stirring;

[0059] (4) Weigh 1.7g SiO2 2 , add to the container, and stir evenly;

[0060] (5) Weigh 0.68g of polyvinylpyrrolidone (purchased from Guangzhou Batai Chemical Co., Ltd., PVP K90) 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 ...

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Abstract

Protective coating used for titanium is disclosed. The coating is prepared by uniformly mixing a raw material mixture. The raw material mixture comprises an oxidation protective agent and an oily film forming agent. The oxidation protective agent comprises Al powder, Sn powder and Cu powder. The weight ratio of the Al powder, the Sn powder and the Cu powder is 1:0.01-0.1:0.01-0.1. Applications of the coating in titanium ingot production and a titanium ingot producing method are also disclosed. The coating ensures that surfaces of titanium ingots are not oxidized or cracked after the titanium ingots are disposed at a constant high temperature of 1000 DEG C for 8 h, and largely reduces formation of oxygen dissolving layers. The coating is environmental friendly and simple in preparation process, and can adopt a plurality of coating manners. The titanium ingot producing method has good economic benefit and social benefit and has a wide popularization and application prospect in production of titanium plates and titanium tubes.

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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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
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