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Production system and production method used for large-size titanium and titanium alloy square and rectangular pipes

A production system, titanium alloy technology, applied in metal rolling, other manufacturing equipment/tools, manufacturing tools, etc., can solve the problems of easy fracturing, hazards, cracks, etc.

Active Publication Date: 2016-08-31
LIAOCHENG ANTAI PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, the hazards of O, N, and C in titanium materials are easy to produce low-density inclusions such as TiO2, TiN, and TiC; so that titanium materials are easily crushed and cracks are formed during turning, forging, piercing, rolling, etc. , cavities and other defects; it is the source of cracks for premature fatigue failure of parts, which seriously reduces the life of parts

Method used

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  • Production system and production method used for large-size titanium and titanium alloy square and rectangular pipes
  • Production system and production method used for large-size titanium and titanium alloy square and rectangular pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] A kind of thermal processing production method of titanium and titanium alloy square tube, is processed into the tube blank of TA1, TA2, TA3, TA4, TA5, TA6 and TA7 brand, comprises following process:

[0111] 1) Cutting: Cut the titanium and titanium alloy blanks according to the length required by the production, and process the cut blanks to the corresponding outer diameter according to the production requirements, and at the same time ensure that the surface roughness after processing is Ra≤3.2μm. The material is completed to obtain a qualified titanium alloy tube blank;

[0112] 2) Centering hole: Use the centering machine 1 to process the centering hole on both ends of the tube blank;

[0113] 3) Apply protective coating: apply protective coating to the surface of the tube blank;

[0114] 4) Heating: put the tube billet in the ring heating furnace 2 and heat it in sections, the heating speed of the low-temperature slow section is 10min / cm, and the heating speed of...

Embodiment 2

[0129] The production method for large-size titanium and titanium alloy square tubes, the grades are TA8, TA8-1, TA9, TA9-1, TA10, TA13, TA15, TA18 tube blanks, including the following processes:

[0130] 1) Cutting: Cut the titanium and titanium alloy blanks according to the length required by the production, and process the cut blanks to the corresponding outer diameter according to the production requirements, and at the same time ensure that the surface roughness after processing is Ra≤3.2μm. The material is completed to obtain a qualified titanium alloy tube blank;

[0131] 2) Centering hole: Use the centering machine 1 to process the centering hole on both ends of the tube blank;

[0132] 3) Apply protective coating: apply protective coating to the surface of the tube blank;

[0133] 4) Heating: put the tube billet in the ring heating furnace 2 and heat it in sections, the heating speed of the low-temperature slow section is 10min / cm, and the heating speed of the high-t...

Embodiment 3

[0148] The production method for large-size titanium and titanium alloy square tubes, the grades are TC1, TC2, TC3, TC4, TC10 tube blanks, including the following processes:

[0149] 1) Cutting: Cut the titanium and titanium alloy blanks according to the length required by the production, and process the cut blanks to the corresponding outer diameter according to the production requirements, and at the same time ensure that the surface roughness after processing is Ra≤3.2μm. The material is completed to obtain a qualified titanium alloy tube blank;

[0150] 2) Centering hole: Use the centering machine 1 to process the centering hole on both ends of the tube blank;

[0151] 3) Apply protective coating: apply protective coating to the surface of the tube blank;

[0152] 4) Heating: put the tube billet in the ring heating furnace 2 and heat it in sections, the heating speed of the low-temperature slow section is 10min / cm, and the heating speed of the high-temperature fast sectio...

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Abstract

The invention belongs to the technical field of titanium and titanium alloy square and rectangular pipe production, and particularly relates to a production system and production method used for large-size titanium and titanium alloy square and rectangular pipes. The production system comprises the following devices including a centering machine, an annular heating furnace, a high-precision intra-machine centering cone roll piercing unit, a high-precision retained mandrel multifunctional calendaring unit, a medium-frequency induction heating type high-precision sizing unit, a movement device, a straightening machine and the like. By means of the production system used for the large-size titanium and titanium alloy square and rectangular pipes, the obtained finished product square and rectangular pipes are diverse in type and high in strength and precision, and the production system can be directly used for finish machining.

Description

technical field [0001] The invention belongs to the technical field of production of titanium and titanium alloy square rectangular tubes, in particular to a production system and production method for large-size titanium and titanium alloy square rectangular tubes. Background technique [0002] Titanium and titanium alloy square tubes are seamless square tubes made of titanium and titanium alloy materials. Titanium and titanium alloys can be divided into three categories according to their organization. The first category is adding aluminum and tin elements to titanium; the second category is adding alloy elements such as aluminum, chromium, molybdenum, vanadium to titanium; the third category is adding aluminum and vanadium to titanium. Titanium alloys have high mechanical properties and excellent impact properties. Titanium tubes have high corrosion resistance to chlorides, sulfides and ammonia. Titanium alloys can be divided into α alloys, (α+β) alloys and β alloys acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B19/04B21B19/10B23P15/00B23P23/00
CPCB21B19/04B21B19/10B23P15/00B23P23/00
Inventor 张志玉那继业刘怀玉高万峰石满鹰冯永涛李凤魁
Owner LIAOCHENG ANTAI PETROLEUM MACHINERY
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