CN104174807B - The manufacture method of a kind of heavy caliber titanium thick-wall tube - Google Patents
The manufacture method of a kind of heavy caliber titanium thick-wall tube Download PDFInfo
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- CN104174807B CN104174807B CN201310209558.6A CN201310209558A CN104174807B CN 104174807 B CN104174807 B CN 104174807B CN 201310209558 A CN201310209558 A CN 201310209558A CN 104174807 B CN104174807 B CN 104174807B
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000010936 titanium Substances 0.000 title claims abstract description 22
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000005242 forging Methods 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 238000004080 punching Methods 0.000 claims abstract description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 7
- 238000002791 soaking Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract description 2
- 230000037303 wrinkles Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000227 grinding Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The present invention relates to the manufacture method of a kind of heavy caliber titanium thick-wall tube, this manufacture method, carry out according to the following steps: 1, the titanium ingot casting processed is put into the temperature that stove is heated to 950--1150 DEG C, on flat-die forging oil press, carry out jumping-up according to a certain percentage and pull out length; 2, the heating temperatures being reentered in stove to be heated to 900--1050 DEG C, carries out punching; 3, preheated mold, coats lubricant, by blank heating to 920--1050 DEG C, proportionally pulls out length with V-type anvil; 4, put into stove heating, pull out length by tup, carry out shaping and round as a ball simultaneously; The present invention is by means of only controlling punching technology and pulls out farm labourer's skill, makes titanium or titanium alloy thick-walled tube avoid in traditional extruding+operation of rolling, repeatedly rolls the defects such as the tube surfaces pit of easily formation, wrinkle, tiny crack. The Large Titanium tubing of plurality of specifications can be manufactured, it is to increase the yield rate of tubing.
Description
One, technical field
The present invention relates to the manufacture method of a kind of heavy caliber titanium thick-wall tube, belong to the materials processing of non-ferrous metal.
Two, background technology
Along with developing by leaps and bounds of National modern industry, modern chemical industry equipment and pressurized vessel are on a large scale, large size, large-tonnage develops, therefore that the dimensions of tubing is more and more higher, particularly corrosion resisting property is had higher requirement. Titanium or titanium alloy tubing because of advantages such as solidity to corrosion is good, intensity height, nonmagnetic, linear expansivity is little, the pressurized vessel being widely used on various equipment both at home and abroad. The titanium or titanium alloy tubing size of usual common piping system is less, and the titanium pipe size relatively big (diameter is about 200～700mm) on chemical industry equipment, surface quality requires high. The factors such as heavy caliber titanium pipe work flow length, loss be big and internal surface of pipe quality is wayward, cause the yield rate of large chemical equipment heavy caliber titanium thick-wall tube extremely low.
Traditional heavy caliber titanium pipe processing technique mainly contains three kinds of techniques:
It is the method adopting rolling+heat to expand, namely first manufactures a pipe base, the method enlarged diameter that reusable heat expands. Adding in tubing in man-hour outside surface along rolling direction all by rolling resistance power effect, in the operation of rolling, occlusion exacerbates the sticky mold process degree between material and mould repeatedly, repeatedly rolls and easily causes tube surfaces to produce the defect such as pit, wrinkle,
Another kind is the method adopting bar machine to add. Machine adds costly, and raw material availability is low, and the performance of tubing is ensured by bar, is a difficult problem for major diameter bar guaranteed performance.
The third V-type anvil pulls out the effective ways that length is forged steel cylinder and thick-wall tube, and when pulling out long, tube surfaces is conducive to shaping by the distortion of upper layer three-dimensional compressive stress. The forging that V-type anvil is used for cylindrical member has been applied for many years in iron and steel enterprise. Surperficial tolerance dimension inside and outside this kind of method is relatively big, and the cylindrical member cost carrying out forged titanium with V-type anvil is inevitable high.
Three, summary of the invention
It is an object of the invention to for above-mentioned deficiency of the prior art, it is provided that the manufacture method of a kind of heavy caliber titanium thick-wall tube.
The technical solution used in the present invention is: adopt forging cogging+punching+reconditioning+V-type anvil to pull out length+tup and pull out length; The present invention carries out according to the following steps:
(1), by the titanium ingot casting processed put into the temperature that stove is heated to 950--1150 DEG C, soaking time 0.5--1 hour, on flat-die forging oil press, then carry out jumping-up according to the ratio of 0.3---0.4 and pull out length;
(2), it is reentered in stove to be heated to the heating temperatures of 900--1050 DEG C, carries out punching;
(3), preheated mold 200--300 DEG C, coat lubricant, by blank heating to 900--1050 DEG C, carry out pulling out length; V-type anvil pulls out long anvil width ratio between 0.5--1.0, and the diameter of plug and the internal diameter gap of tubing are 10--20mm;
(4), put into heating temperatures that stove is heated to 840--960 DEG C after, pull out long round as a ball by tup; Distance finished product length 400--500mm, stops forging, carries out strict reconditioning;
(5), finished product processing: temperature heat 840--960 DEG C, pull out long round as a ball by tup, rod base is annealed after reaching dimensional requirement by finished product, selects 650---750 DEG C, is incubated 2 hours.
The external diameter of the titanium pipe that this manufacture method is produced or titanium alloy pipe is 160mm～800mm, and wall thickness is 15---100 millimeter.
The present invention compared with prior art has the following advantages:
1, the present invention utilizes existing forging equipment simple to operate, and process flow is short.
2, the present invention conventional cogging is forged after bar carry out punching, V-type anvil pulls out and long add tup and pull out length, can make the size (wall thickness reaches 15--100mm) that the wall thickness of tubing reaches bigger, it is to increase surface quality and yield rate.
3, the present invention reduces a series of production process such as oil removing, pickling relative to pair rolling technique, decreasing pollution.
Below in conjunction with embodiment, the technical scheme of the present invention is described in further detail.
Embodiment one: pure titanium finished product tubing Φ 340/ Φ 260 × 3000 (mm) weight 510 kilograms.
Forging size: Φ 360/ Φ 245 × 3100 (mm) weight 764 kilograms.
The Chemical Composition of selecting of the present embodiment meets the TA2 ingot casting of GB/T3620.1-2007 standard-required, and ingot casting specification is φ 580mm, and flat-die forging is the TA2 blank of φ 700 × 470mm, weight 810 kilograms. Rod base after internal external defects is cleared up,
(1), by the excellent base cleaning out interior external defects being heated to 900 DEG C, in 2000T quick forging machine, punching is Φ 800/ Φ 260 × 400, weight 790 kilograms;
(2), carefully after reconditioning, preheating grinding tool, to 200--300 DEG C, smears lubricant, heating of pipe blank 900 DEG C, carries out V-type anvil and pulls out and grow to Φ 580/ Φ 245 × 800;
(3), carefully after reconditioning, preheating grinding tool, to 200--300 DEG C, smears lubricant, heating of pipe blank 900 DEG C, carries out V-type anvil (or 400 tups) and pulls out and grow to Φ 400/ Φ 245 × 2200, weight 778 kilograms;
(4), carefully after reconditioning, preheating grinding tool, to 200--300 DEG C, smears lubricant, heating of pipe blank 850 DEG C, carries out tup and pulls out and grow to Φ 360/ Φ 245 × 3100;
(5), production tube through 650 DEG C, the insulation thermal treatment of 2 hours, proceed to machining sequence.
Embodiment two:
TC4 titanium alloy, finished product tubing Φ 340/ Φ 260 × 3000 (mm) weight 510 kilograms.
Forging size: Φ 370/ Φ 240 × 3100 (mm) weight 870 kilograms.
The Chemical Composition of selecting of the present embodiment meets the TC4 ingot casting of GB/T3620.1-2007 standard-required, and ingot casting specification is φ 580mm, and flat-die forging is the blank of φ 700 × 540mm, weight 930 kilograms.Rod base after internal external defects is cleared up,
(1), by the excellent base cleaning out interior external defects being heated to 1050 DEG C, in 2000T quick forging machine, punching is Φ 800/ Φ 260 × 450, weight 910 kilograms;
(2), carefully after reconditioning, preheating grinding tool, to 200--300 DEG C, smears lubricant, heating of pipe blank 900 DEG C, carries out V-type anvil and pulls out and grow to Φ 600/ Φ 240 × 800;
(3), carefully after reconditioning, preheating grinding tool, to 200--300 DEG C, smears lubricant, heating of pipe blank 1050 DEG C, carries out V-type anvil and pulls out and grow to Φ 500/ Φ 240 × 1300;
(4), carefully after reconditioning, preheating grinding tool, to 200--300 DEG C, smears lubricant, heating of pipe blank 1000 DEG C, carries out tup and pulls out and grow to Φ 400/ Φ 240 × 2500;
(5), carefully after reconditioning, preheating grinding tool, to 200--300 DEG C, smears lubricant, heating of pipe blank 950 DEG C, carries out tup and pulls out and grow to Φ 370/ Φ 240 × 3100;
(6), production tube through 750 DEG C, the insulation thermal treatment of 2 hours, proceed to machining sequence.
Claims (2)
1. a manufacture method for heavy caliber titanium thick-wall tube, carries out according to the following steps:
(1), by the titanium ingot casting processed put into the temperature that stove is heated to 950--1150 DEG C, soaking time 0.5--1 hour, on flat-die forging oil press, then carry out jumping-up according to the ratio of 0.3---0.4 and pull out length;
(2), it is reentered in stove to be heated to the heating temperatures of 900--1050 DEG C, carries out punching;
(3), preheated mold 200--300 DEG C, coat lubricant, by blank heating to 900--1050 DEG C, carry out pulling out length; V-type anvil pulls out long anvil width ratio between 0.5--1.0, and the diameter of plug and the internal diameter gap of tubing are 10--20mm;
(4), put into heating temperatures that stove is heated to 840--960 DEG C after, pull out long round as a ball by tup; Distance finished product length 400--500mm, stops forging, carries out strict reconditioning;
(5), finished product processing: temperature heat 840--960 DEG C, pull out long round as a ball by tup, rod base is annealed after reaching dimensional requirement by finished product, selects 650---750 DEG C, is incubated 2 hours.
2. the manufacture method of a kind of heavy caliber titanium thick-wall tube as claimed in claim 1, it is characterised in that: the external diameter of the titanium pipe that this manufacture method is produced or titanium alloy pipe is 160mm～302mm, and wall thickness is 15---100 millimeter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310209558.6A CN104174807B (en) | 2013-05-22 | 2013-05-22 | The manufacture method of a kind of heavy caliber titanium thick-wall tube |
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| CN201310209558.6A CN104174807B (en) | 2013-05-22 | 2013-05-22 | The manufacture method of a kind of heavy caliber titanium thick-wall tube |
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| CN104174807A CN104174807A (en) | 2014-12-03 |
| CN104174807B true CN104174807B (en) | 2016-06-15 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105013822B (en) * | 2015-07-08 | 2017-03-08 | 烟台宝钢钢管有限责任公司 | A kind of mandrel movement limiting Continuous mill train rolls the Short flow method of thick-walled pipe |
| CN105619028B (en) * | 2016-01-26 | 2018-02-09 | 安徽同盛环件股份有限公司 | A kind of moulding process of chromium steel ring |
| CN106425317A (en) * | 2016-11-15 | 2017-02-22 | 宝钛集团有限公司 | Preparation method of Ti-B19 high-strength titanium alloy large-caliber thick wall pipe |
| CN107649531B (en) * | 2017-10-13 | 2019-04-09 | 宝钛集团有限公司 | A kind of processing method of titanium alloy large-calibre seamless thin-wall pipes |
| CN111745120B (en) * | 2020-06-23 | 2021-08-13 | 河南中原特钢装备制造有限公司 | Forging method of wind tunnel cannon driving section pipe body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934341A (en) * | 2010-09-20 | 2011-01-05 | 宝鸡市利泰有色金属有限公司 | Forging technology of TC4 titanium alloy cylindrical part |
| CN102489952A (en) * | 2011-12-04 | 2012-06-13 | 西北有色金属研究院 | Method for manufacturing titanium alloy thick-wall pressure-resistant cylinder body |
| CN102773398A (en) * | 2011-05-09 | 2012-11-14 | 上海重型机器厂有限公司 | Method for forging slender and thick-walled pipe fittings |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01156456A (en) * | 1987-12-11 | 1989-06-20 | Nippon Steel Corp | Method for hot-working titanium ingot |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934341A (en) * | 2010-09-20 | 2011-01-05 | 宝鸡市利泰有色金属有限公司 | Forging technology of TC4 titanium alloy cylindrical part |
| CN102773398A (en) * | 2011-05-09 | 2012-11-14 | 上海重型机器厂有限公司 | Method for forging slender and thick-walled pipe fittings |
| CN102489952A (en) * | 2011-12-04 | 2012-06-13 | 西北有色金属研究院 | Method for manufacturing titanium alloy thick-wall pressure-resistant cylinder body |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacturing method of large-caliber thick-walled titanium tube block Effective date of registration: 20170719 Granted publication date: 20160615 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XIANYANG TIANCHENG TITANIUM INDUSTRY Co.,Ltd. Registration number: 2017990000664 |
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Address after: 712000 No. 3 Gaoke Third Road, Qindu District, Xianyang City, Shaanxi Province Patentee after: SHAANXI TIANCHENG AVIATION MATERIALS Co.,Ltd. Address before: 712000 North of Century Avenue, Fengdong Town, Qindu District, Xianyang City, Shaanxi Province Patentee before: XIANYANG TIANCHENG TITANIUM INDUSTRY Co.,Ltd. |
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Date of cancellation: 20221024 Granted publication date: 20160615 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XIANYANG TIANCHENG TITANIUM INDUSTRY Co.,Ltd. Registration number: 2017990000664 |
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Address after: 712000 No. 3 Gaoke Third Road, Qindu District, Xianyang City, Shaanxi Province Patentee after: Shaanxi Tiancheng Aviation Materials Co.,Ltd. Country or region after: China Address before: 712000 No. 3 Gaoke Third Road, Qindu District, Xianyang City, Shaanxi Province Patentee before: SHAANXI TIANCHENG AVIATION MATERIALS Co.,Ltd. Country or region before: China |