Production process of high-strength Ti75 titanium ring

A production process and high-strength technology, used in manufacturing tools, furnaces, heat treatment equipment, etc., can solve the problem of insufficient strength of Ti75 titanium rings

Pending Publication Date: 2021-06-04
陕西茂松科创有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the strength of the Ti75 titanium ring obtained by the existing production process of the Ti75 titanium ring is not high enough, the present invention provides a production process of the high-strength Ti75 titanium ring

Method used

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  • Production process of high-strength Ti75 titanium ring

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of production technology of the high intensity Ti75 titanium ring, comprises the following steps:

[0032] (1) Incoming material: Check the grade and specification of the incoming material, and weigh it with an electronic scale;

[0033] (2) Inspection: flaw detection, riser detection, and inspection of the surface for metallurgical defects;

[0034] (3) The first fire, billet forging, using 4500T equipment, preheating at 750°C for 1.8 hours and then raising the temperature to 1110°C, holding time for 400min, keeping the heating rate at 10°C / min during the heating process, after completing two upsetting and three drawing It can be returned to the furnace to open the billet, and carry out air cooling and grinding. According to the finished product specifications, it can be sawed and cut into two types according to the single weight: 1# single weight ≥ 390kg two pieces, 2# single weight ≥ 330kg two pieces, and unloading;

[0035] (4) The second fire, using 2000T e...

Embodiment 2

[0042] A kind of production technology of the high intensity Ti75 titanium ring, comprises the following steps:

[0043] (1) Incoming material: Check the grade and specification of the incoming material, and weigh it with an electronic scale;

[0044] (2) Inspection: flaw detection, riser detection, and inspection of the surface for metallurgical defects;

[0045] (3) The first fire, billet forging, using 4500T equipment, preheating at 780°C for 1.9 hours, then raising the temperature to 1120°C, holding time 415min, and keeping the heating rate at 10°C / min during the heating process, after completing two upsetting and three drawing It can be returned to the furnace to open the billet, and carry out air cooling and grinding. According to the finished product specifications, it can be sawed and cut into two types according to the single weight: 1# single weight ≥ 390kg two pieces, 2# single weight ≥ 330kg two pieces, and unloading;

[0046] (4) The second fire, using 2000T equi...

Embodiment 3

[0053] A kind of production technology of the high intensity Ti75 titanium ring, comprises the following steps:

[0054] (1) Incoming material: Check the grade and specification of the incoming material, and weigh it with an electronic scale;

[0055] (2) Inspection: flaw detection, riser detection, and inspection of the surface for metallurgical defects;

[0056] (3) The first fire, billet forging, using 4500T equipment, preheating at 800°C for 2 hours, then raising the temperature to 1130°C, holding time 440min, keeping the heating rate at 10°C / min during the heating process, after completing two upsetting and three drawing It can be returned to the furnace to open the billet, and carry out air cooling and grinding. According to the finished product specifications, it can be sawed and cut into two types according to the single weight: 1# single weight ≥ 390kg two pieces, 2# single weight ≥ 330kg two pieces, and unloading;

[0057] (4) The second fire, using 2000T equipment,...

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Abstract

The invention discloses a production process of a high-strength Ti75 titanium ring. The production process comprises the following steps: materials are fed; inspection is carried out; for the first fire, 4500 T equipment is used, preheating is conducted for 1.8-2.2 hours at the temperature of 750-850 DEG C, then the temperature is increased to 1,110-1,150 DEG C, the heat preservation time is 400-460 min, and the temperature rise rate is kept at 10 DEG C / min in the temperature rise process; for the second fire, 2000T equipment is used, and heat preservation is carried out for 215-245 minutes at the temperature of 970-1,000 DEG C; for the third fire, 2000T equipment is used, and heat preservation is conducted for 215-245 min at the temperature of 930-955 DEG C; for the fourth fire, 2000T equipment is used, and heat preservation is conducted for 215-245 min at the temperature of 900-928 DEG C; for the fifth fire, 2000T equipment is used for the fifth fire, the overall remelting temperature is increased to 890-910 DEG C, and the heating time is 20-40 minutes; for the sixth fire, a 2000 T device is used, and mandrel drawing and mandrel supporter reaming are conducted at the temperature of 860-895 DEG C; for the seventh fire, heat preservation is conducted for 15-25 min at the temperature of 700-740 DEG C, and stress relief annealing is conducted; The tensile strength, the yield strength, the elongation, the shrinkage rate, the impact strength and the hardness of the Ti75 titanium ring obtained through the production process are all superior to those of an existing Ti75 titanium ring, and the Ti75 titanium ring has the advantage of being high in strength.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal production technology, in particular to a production technology of Ti75 titanium ring. Background technique [0002] Ti75 titanium alloy is a medium-strength, high-temperature-resistant, corrosion-resistant, hydrogen-brittle-resistant Ti-Al-Mo-Zr titanium alloy designed and developed by my country. In ships; Ti75 titanium alloy is the preferred material. Due to the large size and weight of ship parts, large-scale titanium alloy blanks are gradually used to prepare pressure vessels, pressure shells, rings and shafts. However, the strength of the Ti75 titanium ring obtained by the existing production process of the Ti75 titanium ring is not high enough, so it is urgent to solve this problem. Contents of the invention [0003] In order to solve the problem that the strength of the Ti75 titanium ring obtained by the existing production process of the Ti75 titanium ring is not high enough, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/76C22F1/18C21D1/30C21D9/40C22C14/00
CPCB21K1/761C22F1/183C21D1/30C21D9/40C22C14/00
Inventor 于显群
Owner 陕西茂松科创有限公司
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