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Preparation method of titanium plate for deep drawing

A titanium plate and deep drawing technology, which is applied in the field of preparation of titanium plates for deep drawing, can solve the problems of cupping value reduction, surface wrinkling, etc., and achieve the effects of low cost, high production efficiency, high mechanical properties and microstructure

Active Publication Date: 2018-02-23
LUOYANG SUNRUI TI PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The titanium plate for stamping is mainly composed of equiaxed α structure. Larger grains are beneficial to stamping forming, but when the grains are too coarse, stamping deformation will cause surface wrinkling, and too large or too small grains will cause the cupping value to decrease. Therefore, an appropriate grain size is required

Method used

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  • Preparation method of titanium plate for deep drawing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: a kind of preparation method of titanium plate for deep drawing, comprises the following steps:

[0029] (1) Choose a particle size of 3~8mm not less than 0 A Grade sponge titanium is smelted in a German ALD vacuum consumable electric arc furnace for a second time to prepare a TA1 ingot with a diameter of about Φ800mm. The O content in the ingot is ≤0.06%, the N content is ≤0.006%, and the Fe content is ≤0.03%. The ingot is forged three times, and two times of drawing and two times of upsetting are carried out, and the deformation of each time of upsetting and drawing is not less than 30%, and then after shaping and milling, the flaw detection level reaches A level, and TA1 slab with recrystallized structure and relatively uniform grain, the nominal size of the slab is 150×1270×5000mm, and the stated value is not less than 0 A The composition of titanium sponge requires O content ≤ 0.05%, N content ≤ 0.006%, Fe content ≤ 0.05%;

[0030] (2) Use natural g...

Embodiment 2

[0041] Embodiment 2: a kind of preparation method of titanium plate for deep drawing, comprises the steps:

[0042] (1) Choose a particle size of 8~12.7mm, not less than 0 A Grade sponge titanium, prepared into TA1 ingot by EB furnace (electron beam cooling bed furnace), the thickness of the ingot is 400mm, the width is 1300mm, the content of O in the ingot is ≤0.055%, the content of N is ≤0.0058%, and the content of Fe is ≤0.03% , and then forging the ingot three times, and during the forging process, a total of two times of drawing and upsetting are carried out. The amount of each upsetting and drawing deformation is not less than 30%, and then the flaw detection level is obtained after shaping and milling. Grade A TA1 slabs with recrystallized structure and relatively uniform grains, the stated value shall not be lower than 0 A The composition of titanium sponge requires O content ≤ 0.05%, N content ≤ 0.006%, Fe content ≤ 0.05%;

[0043] (2) Use natural gas to heat the TA...

Embodiment 3

[0049] Embodiment 3: a kind of preparation method of titanium plate for deep drawing, comprises the following steps:

[0050] (1) Choose a particle size of 3~12.7mm, not less than 0 A Grade sponge titanium, prepared into TA1 ingot by VAR furnace, O content in the ingot ≤0.055%, N content ≤0.0058%, Fe content ≤0.03%, then forging the ingot three times, and during the forging process Two times of stretching and two times of upsetting, the amount of each upsetting and stretching deformation is not less than 30%, and then after shaping and milling, TA1 with a flaw detection grade of A grade, recrystallized structure and relatively uniform grains is obtained. slab, the said not lower than O A The composition of titanium sponge requires O content ≤ 0.05%, N content ≤ 0.006%, Fe content ≤ 0.05%;

[0051] (2) Use natural gas to heat the TA1 slab obtained in step (1) to 850°C and keep it warm, and roll to obtain a hot-rolled coil with a thickness of 6mm, and then perform continuous a...

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Abstract

Disclosed is a preparation method of a titanium plate for deep drawing. Titanium sponge which is not lower than the 0A level and meets the conditions that the O content is smaller than or equal to 0.05%, the N content is smaller than or equal to 0.006% and the Fe content is smaller than or equal to 0.05% is used as a raw material and subjected to smelting casting and forging, and two or more timesof drawing-out and / or upsetting are carried out in the forging process, so that a plate blank with a good structure and tiny texture is prepared; and then the plate blank is subjected to hot rolling,cold rolling and rolling in changed directions in combination with the steps of annealing and subsequent processing, so that the pure titanium plate with proper crystalline grains, qualified performance and a high Erichsen value is obtained. Through the method, the pure titanium plate can be made to be short in production procedure, high in efficiency and good in deep drawing performance.

Description

technical field [0001] The invention belongs to the technical field of titanium plate processing, and in particular relates to a preparation method of a titanium plate for deep drawing. Background technique [0002] Titanium is the only metal among all metals that has an affinity for the human body, does no harm to the human body, and does not produce rejection reactions when combined with the human body. Titanium has many excellent properties, such as low density, high specific strength and corrosion resistance. The daily necessities made of titanium have the advantages of light weight, firmness, no rust, non-toxic, harmless, antibacterial and non-allergic. The field of daily necessities has broad application prospects. [0003] Compared with other mechanical processing methods, stamping products have the advantages of stable quality, good interchangeability, direct use, low energy consumption, and high production efficiency. Titanium is a metal that is difficult to be st...

Claims

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Application Information

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IPC IPC(8): C22F1/18
Inventor 刘喜波陈涛刘茵琪
Owner LUOYANG SUNRUI TI PRECISION CASTING
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