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Manufacturing method of titanium alloy electrode bar for plasma rotation electrode

A technology for titanium alloy electrodes and rotating electrodes is applied in the field of metal material processing, which can solve the problem of low precision of titanium alloy electrode rods, achieve small overall indentation, reduce heating times, and save grinding and processing procedures and labor costs. Effect

Active Publication Date: 2015-05-20
SINO EURO MATERIALS TECH OF XIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art above, the purpose of the present invention is to provide a preparation method of a titanium alloy electrode rod for a plasma rotating electrode, which can effectively improve the titanium alloy electrode rod by controlling the forging temperature and forging fire times of the titanium alloy ingot. Oxidation defects and crack formation; through finishing treatment, the surface roughness of the finished electrode rod after secondary polishing can reach 0.8 μm, which effectively solves the problem of low precision of titanium alloy electrode rods for plasma rotating electrodes. The electrode rod meets the technical requirements of the size and tolerance of the electrode rod for the plasma rotating electrode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a titanium alloy electrode rod for a plasma rotating electrode includes the following steps:

[0023] Step 1, blank preparation, using titanium alloy ingot as blank, meeting the GB / T2965-2007 standard;

[0024] Step 2. Use a fast forging machine to open and forge the titanium alloy ingot. Place a cylindrical titanium alloy ingot with a cross-sectional diameter of 950 mm in a box-type resistance furnace and heat it to 1150°C, keep it for 60 minutes, and use the fast forging machine to The alloy billet is forged with a 50% deformation rate to obtain a primary titanium alloy billet; the primary titanium alloy billet is a cube of 480mm×480mm×480mm, and the final forging temperature is not less than 700℃. The billet forging is carried out in 4 fire cycles;

[0025] Step 3: Upsetting and forging the primary forging billet using free forging equipment, and forging the water-cooled intermediate forging billet in 4 fire cycles, where the upsetting and forging tem...

Embodiment 2

[0033] The preparation method of the TC11 titanium alloy electrode rod for plasma rotating electrode in this embodiment includes the following steps:

[0034] Step 1, blank preparation, using titanium alloy ingot as blank, meeting the GB / T2965-2007 standard;

[0035] Step 2. Use a fast forging machine to open and forge the titanium alloy ingot. Place a cylindrical titanium alloy ingot with a cross-sectional diameter of 950 mm in a box-type resistance furnace and heat it to 1100°C for 60 minutes. The alloy billet is forged with a deformation rate of 60% to obtain a primary titanium alloy billet. The primary titanium alloy billet is a cube of 550mm×550mm×550mm, and the final forging temperature is not lower than 850°C. The billet forging is carried out in 4 fire cycles;

[0036] Step 3: Upsetting and forging the primary forging billet using free forging equipment, and forging the water-cooled intermediate forging billet in 4 fire cycles, where the upsetting and forging temperature of t...

Embodiment 3

[0044] The preparation method of TA15 titanium alloy electrode rod for plasma rotating electrode in this embodiment includes the following steps:

[0045] Step 1, blank preparation, using titanium alloy ingot as blank, meeting the GB / T2965-2007 standard;

[0046] Step 2. Use a fast forging machine to open and forge the titanium alloy ingot. Place a cylindrical titanium alloy ingot with a cross-sectional diameter of 950 mm in a box-type resistance furnace and heat it to 1150°C, keep it for 60 minutes, and use the fast forging machine to The alloy billet is forged with a deformation rate of 58% to obtain a primary titanium alloy billet; the primary titanium alloy billet is a cube of 510mm×510mm×510mm, and the final forging temperature is not less than 900℃. The billet forging is carried out in 4 fire cycles;

[0047] Step 3: Upsetting and forging the primary forging blank by free forging equipment, and forging the intermediate forging blank after water cooling in 6 fire cycles. Among ...

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Abstract

Provided is a manufacturing method of a titanium alloy electrode bar for a plasma rotation electrode. The manufacturing method includes the following steps that step1, a blank is prepared, wherein a titanium alloy ingot serves as the blank and meets the GB / T2965-2007 standard; step2, a quick forging press is used for performing blooming forging on the titanium alloy ingot, wherein blooming forging is completed through 2-4 times of heating, and a primary forged blank is obtained after air cooling; step3, hammer forging equipment is used for performing upsetting and rolling forging on the primary forged blank, and forging is performed on an intermediate forged blank obtained after water cooling through 4-6 times of heating; step4, a precision forging machine is used for performing precision forging on the intermediate forged blank obtained in the step3, and a semi-finished bar is obtained after air cooling; step5, heat treatment is performed; step6, heat straightening is performed; step7, a lathe is used for performing turning on the semi-finished bar obtained after heat straightening and air cooling so that the finished titanium alloy electrode bar for the plasma rotation electrode can be formed; step8, finishing treatment is performed; finally, appearance inspection is performed on the finished titanium alloy electrode bar for the plasma rotation electrode. The manufacturing method has the advantages that the production cycle is short, the service life is long and economic benefits are good.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a preparation method of a titanium alloy electrode rod for a plasma rotating electrode. Background technique [0002] Using the plasma rotating electrode method to obtain high-cost-effective titanium alloy spherical powder is the key to preparing high-performance titanium alloy components for 3D printing and hot isostatic pressing. The key link of taking high-performance titanium alloy spherical powder. Titanium alloy electrode rods for plasma rotating electrodes are prone to oxidation, cracking and other phenomena during the processing process, which adversely affects the preparation of titanium alloy spherical powders in the later stage. On the other hand, due to the extremely easy oxidation of titanium alloy, when the titanium alloy rod is subjected to high temperature heat treatment, the oxide skin on the surface of the rod will become thicker a...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB22F9/08B23P15/00
Inventor 曾光张鹏梁书锦韩志宇陈小林张平祥
Owner SINO EURO MATERIALS TECH OF XIAN CO LTD
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