Full-automatic commercial pure titanium smelting method adopting electron beam cold hearth furnace

A technology of electron beam cooling bed furnace and industrial pure titanium, which is applied in the field of fully automatic smelting of industrial pure titanium and smelting TA1 in electron beam cooling bed furnace, can solve problems such as undiscovered reports, and achieve strong repeatability, controllable cycle, Set up convenient effects

Active Publication Date: 2013-11-27
YUNNAN TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the search of the prior art literature, no relevant reports have been found on the research on the fully automatic melting of TA1 in the electron beam cold hearth furnace

Method used

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  • Full-automatic commercial pure titanium smelting method adopting electron beam cold hearth furnace
  • Full-automatic commercial pure titanium smelting method adopting electron beam cold hearth furnace
  • Full-automatic commercial pure titanium smelting method adopting electron beam cold hearth furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The titanium sponge with a purity of 99.7% and a particle size of 0.83~25.4mm is dried at a temperature of 60°C and a vacuum of 0.6Pa. After drying, it is installed in an Archimedes screw barrel, and then the Archimedes screw The barrel is installed in the EB furnace feeding system. Set its rotation speed to Nr / min, and when the vacuum degree is 0.4~0.8Pa; when the vacuum degree of the main melting furnace body is 0.05~0.8Pa, turn on the feed system and add the material rotated by the Archimedes screw cylinder into the main melting On the chamber melting cooling bed, turn on the electron gun to melt the sponge titanium into titanium liquid. The titanium liquid flows through the primary refining cooling bed. After the main refining cooling bed, it flows into the rectangular (1380*200mm) crystal pulling crucible, and the ingot is pulled through the ingot pulling system Pull out the crystal crucible and cool down with the furnace to get the flat titanium ingot. The specifi...

Embodiment 2

[0035] The titanium sponge with a purity of 99.7% and a particle size of 0.83~25.4mm is dried at a temperature of 60°C and a vacuum of 0.6Pa. After drying, it is installed in an Archimedes screw barrel, and then the Archimedes screw The barrel is installed in the EB furnace feeding system. Set its rotation speed to Nr / min, and when the vacuum degree is 0.4~0.8Pa; when the vacuum degree of the main melting furnace body is 0.05~0.8Pa, turn on the feed system and add the material rotated by the Archimedes screw cylinder into the main melting On the chamber melting cooling bed, turn on the electron gun to melt the sponge titanium into titanium liquid. The titanium liquid flows through the primary refining cooling bed. After the main refining cooling bed, it flows into the rectangular (1250*200mm) crystal pulling crucible, and the ingot is pulled through the ingot pulling system Pull out the crystal crucible and cool down with the furnace to get the flat titanium ingot. The specifi...

Embodiment 3

[0039] The titanium sponge with a purity of 99.7% and a particle size of 0.83~25.4mm is dried at a temperature of 60°C and a vacuum of 0.6Pa. After drying, it is installed in an Archimedes screw barrel, and then the Archimedes screw The barrel is installed in the EB furnace feeding system. Set its rotation speed to Nr / min, and when the vacuum degree is 0.4~0.8Pa; when the vacuum degree of the main melting furnace body is 0.05~0.8Pa, turn on the feed system and add the material rotated by the Archimedes screw cylinder into the main melting On the chamber melting cooling bed, turn on the electron gun to melt the sponge titanium into titanium liquid. The titanium liquid flows through the primary refining cooling bed. After the main refining cooling bed, it flows into the rectangular (1050*200mm) crystal pulling crucible, and the ingot is pulled through the ingot pulling system Pull out the crystal crucible and cool down with the furnace to get the flat titanium ingot. The specifi...

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Abstract

The invention relates to a full-automatic TA1 smelting method adopting an electron beam cold hearth furnace and belongs to the technical field of production engineering application. The production method comprises the following steps: drying and putting titanium sponge into an Archimedean screw tube which is mounted into a feeding system of an electron beam cold hearth melting furnace (EB furnace for short), wherein different rotary speeds are set; when the degree of vacuum of the feeding system reaches 0.4-0.8 Pa and the degree of vacuum of a main smelting cold hearth reaches 0.05-0.8 Pa, starting the feeding system to feed the titanium sponge into the smelting cold hearth of a main smelting chamber; triggering an electron gun to melt the titanium sponge into liquid titanium which flows through a primary refining cold hearth and a main refining cold hearth and then into a rectangular withdrawing crucible; controlling the rotary speed of the Archimedean screw tube to control the feeding speed and scanning patterns so as to control the melting speed, and the ingot pulling rate thereby realizing full-automatic control. The method has the advantages of good ingoting quality, high one-step yield, low manufacturing cost, controllable production period, simplicity in operation, energy conservation, environmental protection and high repeatability.

Description

Technical field [0001] The invention relates to an electron beam cooling bed furnace for fully automatic smelting industrial pure titanium, especially a method for smelting TA1, and belongs to the technical field of titanium material production engineering application. Background technique [0002] Titanium and its alloys are new materials with unique properties and important biological materials. It has the unparalleled advantages of metal products in the past (such as: high specific strength, low density, corrosion resistance, shape memory, super elasticity, high damping, low modulus, good biocompatibility, etc.), so it is currently the best New structural metal materials with application prospects, especially in the fields of aerospace and petrochemical industries. Vigorously developing the titanium industry is of great strategic significance for the consolidation of national defense and national economic construction. The economic development of various countries in the worl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/16C22B34/12
Inventor 史亚鸣杨兴灿黄海广余先永杨文龙
Owner YUNNAN TITANIUM IND
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