Die special for producing combined forged and pressed oxygen lance nozzle

A technology of oxygen lance nozzles and molds, applied in forging/pressing/hammer devices, forging/pressing/hammering machinery, manufacturing tools, etc., can solve the problems of complex manufacturing process, hidden safety hazards, and difficulty in popularization and use, and achieve processing Good performance, improved cooling effect, and improved service life

Active Publication Date: 2011-11-23
山东崇盛冶金氧枪有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this nozzle has a long service life and a good blowing effect, the manufacturing process is complicated, there are many welds, there are potential safety hazards, and the manufacturing cost is high, so it is difficult to popularize and use

Method used

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  • Die special for producing combined forged and pressed oxygen lance nozzle
  • Die special for producing combined forged and pressed oxygen lance nozzle
  • Die special for producing combined forged and pressed oxygen lance nozzle

Examples

Experimental program
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Effect test

Embodiment Construction

[0042] Examples such as Figure 2 to Figure 8 As shown, the production method of the combined forging oxygen lance nozzle includes the production method of the nozzle crown 1, the water retaining plate 2, the nozzle outer pipe 3, the nozzle middle pipe 4, the nozzle inner core 5 and the nozzle inner pipe 6, the nozzle crown 1 The production method comprises the following steps:

[0043] Material selection: select oxygen-free copper Tu1 with a purity of 99.97%;

[0044] Forging blank: the selected oxygen-free copper Tu1 is forged into a blank. The blank includes a base 12 and a disc 13 with an integrated structure. The base 12 is larger in diameter than the disc 13. After forging, the metallographic structure of the copper is a twin crystal α phase, resulting in high density;

[0045] Intermediate billet production: draw a line on the disk 13 and perform volume distribution, that is, determine the position of the column 14, first process the inner cavity 131 on the disk 13, a...

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PUM

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Abstract

The invention relates to a die special for producing a combined forged and pressed oxygen lance nozzle. The die comprises an upper die and a lower die, wherein the upper die comprises a male die fixing plate; a male die is arranged on the male die fixing plate and is provided with pillar holes which are uniformly formed along the center of the male die radially; an included angle of 7 to 20 degrees is formed between the center line of the pillar holes and the center line of the male die; inserts are arranged on the pillar holes close to the center of the male die; the contact surfaces of the inserts and the male die are parallel to the center line of the male die; an arc concave surface is formed at the middle position of the male die; the lower die comprises a female die fixing plate; a female die is fixedly arranged on the female die fixing plate and is provided with a cavity of which the shape corresponds to that of the end face of a crown of the nozzle; and an arc convex surface is formed at the middle position of the female die. An intermediate blank is forged and pressed into a formed blank by the special die, so that the water supply intensity of the oxygen lance nozzle is improved, and the service life of the oxygen lance nozzle is prolonged; and the contact surfaces of the inserts which are arranged on the pillar holes close to the center of the male die, and the maledie are parallel to the center line of the male die, so that the die and a forged and pressed piece are convenient to take and place.

Description

[0001] This application is a divisional application with the application number 201010248756X, the application date of August 10, 2010, and the title of the invention "the production method of the combined forging oxygen lance nozzle and the special mold". technical field [0002] The invention relates to equipment for smelting steel, in particular to a special mold for producing combined forging oxygen lance nozzles, which belongs to the technical field of smelting. Background technique [0003] Commonly used oxygen lance nozzles such as figure 1 As shown, it includes the main body of the nozzle, the water baffle 2, the outer pipe 3 of the nozzle, the middle pipe 4 of the nozzle and the inner pipe 6 of the nozzle. The main body of the nozzle includes the crown 1 of the nozzle and the inner core 5 of the nozzle. 9. The oxygen blowing pipe 9 has an oxygen blowing port 8, and the center line of the oxygen blowing port 8 has an angle α with the center line of the oxygen lance n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21J5/00
Inventor 刘延春
Owner 山东崇盛冶金氧枪有限公司
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