Method for producing titanium slabs efficiently

A titanium slab, high-efficiency technology, applied in the field of high-efficiency production of titanium slabs, can solve the problems of thick surface oxide layer, complex process, high processing costs, etc., achieve excellent flatness and straightness, uniform chemical composition, and reduce manufacturing costs Effect

Active Publication Date: 2012-11-14
LUOYANG SUNRUI TI PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the flatness of the forged slab is poor, the surface oxide layer is thick, and the yield is low
Therefore, the traditional method is not only limited in the shape of the raw material, but also has high processing costs, complicated procedures, and a long process, and the utilization rate of the material is low after smelting-forging
[0003] Titanium is a refractory and hard-to-deform metal. Because of the activity of titanium, it is very easy to react with oxygen, nitrogen and other gases at high temperature, so that the metal titanium will be polluted and lose its original good process performance and mec...

Method used

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  • Method for producing titanium slabs efficiently
  • Method for producing titanium slabs efficiently
  • Method for producing titanium slabs efficiently

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: single ingot smelting

[0039] Raw material: Grade 1 titanium sponge.

[0040] Equipment: EBCHR 6 / 200 / 3600 electron beam cooling hearth furnace.

[0041] The chemical composition requirements of sponge titanium are shown in Table 4.

[0042] Table 4

[0043]

[0044] Actual smelting process:

[0045] A. Prepare 30 barrels of titanium sponge that meet the composition requirements, and load it three times, with 10 barrels for each feeding, and put it into the drum feeder of the electron beam cooling bed furnace.

[0046] B. Vacuumize the melting chamber, vibration feeding chamber, drum feeder and ingot drawing chamber of the electron beam cooling bed furnace to 4x 10-2Pa, then open the plate valve of the ingot drawing chamber, and lift the bottom pad of the ingot into the water-cooled copper crucible middle.

[0047] C. Open the plate valve of the vibrating feeding chamber, open the feed port of the vibrating feeder above the melting cooling bed, and...

Embodiment 2

[0066] Example 2: Twin ingot melting

[0067] Raw material: Grade 0 titanium sponge.

[0068] Equipment: EBCHR 6 / 200 / 3600 electron beam cooling hearth furnace.

[0069] The chemical composition requirements of sponge titanium are shown in Table 6.

[0070] Table 6

[0071]

[0072] Actual smelting process:

[0073] A. Prepare 60 barrels of sponge titanium that meet the composition requirements, and load it in six times, with 10 barrels for each feeding, and put it into the drum feeder of the electron beam cooling bed furnace.

[0074] B. Vacuumize the melting chamber, vibration feeding chamber, drum feeder and ingot drawing chamber of the electron beam cooling bed furnace to 4x 10-2Pa, then open the plate valve of the ingot drawing chamber, and lift the bottom pad of the ingot into the water-cooled copper crucible middle.

[0075] C. Open the plate valve of the vibrating feeding chamber, open the feed port of the vibrating feeder above the melting cooling bed, and the...

Embodiment 3

[0093] Embodiment 3: single ingot smelting

[0094] Raw material: block TA1 recycled material.

[0095] Equipment: EBCHR 6 / 200 / 3600 electron beam cooling hearth furnace.

[0096] The chemical composition requirements of recycled materials are shown in Table 8.

[0097] Table 8

[0098]

[0099] Actual smelting process:

[0100] A. After blasting and pickling the TA1 recycled material, put it into a 450x450x1600mm titanium rod box and put it into the rod feeder of the electron beam cooling bed furnace.

[0101] B. Vacuumize the melting chamber, rod feeding chamber and ingot drawing chamber of the electron beam cooling bed furnace to 4x 10-2Pa, then open the plate valve of the ingot drawing chamber, and raise the bottom pad of the ingot drawing into the water-cooled copper crucible.

[0102] C. Turn on the 1#, 2#, 3#, 4#, 5# electron guns, select the "electron beam positioning" step, and confirm the working status of each electron gun and the clarity and angle of the strobe...

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Abstract

The invention discloses a method for producing titanium slabs efficiently. Electron beam cold hearth furnaces of six electron guns are used, raw materials of which components are selected are placed in bulk material feeders or bar material feeders of the electron beam cold hearth furnaces, smelting is conducted, then obtained cast ingots are cooled and are discharged out of the furnace, and finished products are obtained. According to the method, the raw materials in an original state are used directly for smelting, crushing of recycled materials, mixing of titanium sponge materials, electrode block pressing and electrode welding are avoided, slab ingots smelted through optimization design are two cast ingots of 200*1290*5000mm which are produced in one furnace, the weight is about 12 tons, and the slab ingots are not required to be smelted twice or to be forged can be used in rolling, so that the production flow and the production period are shortened, the production cost is reduced, and the efficiency is improved greatly.

Description

technical field [0001] The invention relates to a material processing technology, in particular to a method for efficiently producing titanium slabs. Background technique [0002] The existing technology is mainly the method of VAR melting round ingot + billet forging. Melting is carried out by a vacuum consumable arc furnace (VAR), which requires the recycled material to be broken into chips and mixed with sponge titanium, then pressed into electrode blocks, welded in a vacuum welding box, and then vacuum arc furnace (VAR ) first smelting, second smelting or even third smelting. The ingot after smelting is a round ingot, which is forged after machining. It needs to be forged several times to become a cuboid slab before it can be used for plates. Production. And the flatness of the forged slab is poor, the surface oxide layer is thick, and the yield is low. Therefore, the traditional method is not only limited in the shape of the raw material, but also has high processing...

Claims

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Application Information

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IPC IPC(8): C22B34/12C22B9/22
CPCY02P10/20
Inventor 刘茵琪曹恒朱俊杰陈志强包淑娟顾新盛李渤渤王树军贾祥亚王卫超
Owner LUOYANG SUNRUI TI PRECISION CASTING
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