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Preparation method for titanium alloy plate

A technology of titanium alloy and sheet material, which is applied in the field of preparation of titanium alloy sheet material, can solve problems such as increased probability of brittle phase precipitation, unsatisfactory thermal stability, and reduced creep resistance performance, and achieves reduced friction coefficient and simple and easy preparation method The effect of row and processing window width

Inactive Publication Date: 2018-02-16
宝鸡市铭坤有色金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal stability of current high-temperature titanium alloy plates is often not ideal, and the creep resistance performance of titanium alloy plates is significantly reduced during use in high-temperature environments. The main reason is that high-temperature titanium alloy plates are generally made of high-temperature titanium alloys, but high-temperature Due to its high alloying, the probability of brittle phase precipitation increases after a long time of working in titanium alloy, resulting in unstable structure
At the same time, due to its poor wear resistance and high friction coefficient, its application is limited, and there are certain problems in the existing treatment methods.

Method used

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Examples

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preparation example Construction

[0022] A kind of preparation method of titanium alloy sheet material of the present invention, comprises the following steps:

[0023] Step 1, changing the titanium alloy forging billet into a titanium alloy slab;

[0024] In step 1, the reforging temperature is 830-890°C, and the thickness of the slab after re-forging is 30-40mm;

[0025] Step 2, heat treating the titanium alloy slab obtained in step 1;

[0026] In step 2, put the titanium alloy slab into a box-type resistance furnace, raise the temperature of the furnace to 1100±50°C, keep the temperature for 4-5 hours, and cool the furnace to 600±10°C;

[0027] Step 3, pickling the titanium alloy slab treated in step 2 to remove the surface oxide film;

[0028] In step 3, the pickling liquid volume ratio formula is HCl:H 2 SO 4 :H 2 O=1:5~9:90~95, pickling temperature is 65~70℃;

[0029] Step 4, performing activation treatment on the surface of the titanium alloy slab treated in step 3;

[0030] The activation treatm...

Embodiment 1

[0036] A method for preparing a titanium alloy plate, comprising the steps of:

[0037] Step 1, changing the titanium alloy forging billet into a titanium alloy slab;

[0038] In step 1, the reforging temperature is 830°C, and the thickness of the slab after reforging is 30mm;

[0039] Step 2, heat treating the titanium alloy slab obtained in step 1;

[0040] In step 2, put the titanium alloy slab into a box-type resistance furnace, raise the temperature of the furnace to 1100±50°C, keep the temperature for 4 hours, and cool the furnace to 600±10°C;

[0041] Step 3, pickling the titanium alloy slab treated in step 2 to remove the surface oxide film;

[0042] In step 3, the pickling liquid volume ratio formula is HCl:H 2 SO 4 :H 2 O=1:5:90, pickling temperature is 65°C;

[0043] Step 4, performing activation treatment on the surface of the titanium alloy slab treated in step 3;

[0044] The activation treatment process in step 4 is: put the prepared activation solution i...

Embodiment 2

[0050] A method for preparing a titanium alloy plate, comprising the steps of:

[0051] Step 1, changing the titanium alloy forging billet into a titanium alloy slab;

[0052] In step 1, the reforging temperature is 890°C, and the thickness of the slab after reforging is 40mm;

[0053] Step 2, heat treating the titanium alloy slab obtained in step 1;

[0054] In step 2, put the titanium alloy slab into a box-type resistance furnace, raise the temperature of the furnace to 1100±50°C, keep the temperature for 5 hours, and cool the furnace to 600±10°C;

[0055] Step 3, pickling the titanium alloy slab treated in step 2 to remove the surface oxide film;

[0056] In step 3, the pickling liquid volume ratio formula is HCl:H 2 SO 4 :H 2 O=1:9:95, pickling temperature is 70°C;

[0057] Step 4, performing activation treatment on the surface of the titanium alloy slab treated in step 3;

[0058]The activation treatment process in step 4 is: put the prepared activation solution in...

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Abstract

The invention discloses a preparation method for a titanium alloy plate. The preparation method comprises the steps that 1, a titanium alloy forged blank is forged into a titanium alloy plate blank; 2, heat treatment is carried out on the titanium alloy plate blank obtained from the step 1; 3, acid washing is carried out on the titanium alloy plate blank subjected to the step 2 to remove an oxidation film on the surface; 4, activation treatment is carried out on the surface of the titanium alloy plate blank subjected to the step 3; 5, wear-resisting treatment is carried out on the surface of the titanium alloy plate blank subjected to the step 4; and 6, cold rolling is carried out on the titanium alloy plate blank subjected to the step 5. According to the method, the mechanical propertiesof the titanium and the titanium alloy plate can not be changed, and meanwhile, the wear resistance of the titanium and the titanium alloy plate can be improved; and the method is simple and easy to implement, the processing window is wide, the process stability is high, and the adjustment and control over the microstructure and matching of the corresponding alloy mechanical properties can be easily realized.

Description

technical field [0001] The invention relates to the technical field of processing methods for titanium alloy plates, in particular to a method for preparing titanium alloy plates. Background technique [0002] Titanium and titanium alloys are light in weight, high in specific strength, and good in corrosion resistance. Widely used in aerospace, mechanical instruments, biomedical materials and daily industry and other fields. The thermal stability of current high-temperature titanium alloy plates is often not ideal, and the creep resistance performance of titanium alloy plates is significantly reduced during use in high-temperature environments. The main reason is that high-temperature titanium alloy plates are generally made of high-temperature titanium alloys, but high-temperature Due to its high alloying, the probability of brittle phase precipitation increases after a long time of working in titanium alloy, resulting in unstable structure. At the same time, due to its p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/18C23C8/10
CPCC22F1/183C23C8/10
Inventor 沈小利牛会梅
Owner 宝鸡市铭坤有色金属有限公司
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