CN104923603A - Technology for preparing pressure resisting titanium alloy half ball for bathyscaph manned ball - Google Patents
Technology for preparing pressure resisting titanium alloy half ball for bathyscaph manned ball Download PDFInfo
- Publication number
- CN104923603A CN104923603A CN201510345588.9A CN201510345588A CN104923603A CN 104923603 A CN104923603 A CN 104923603A CN 201510345588 A CN201510345588 A CN 201510345588A CN 104923603 A CN104923603 A CN 104923603A
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- Prior art keywords
- punched
- titanium alloy
- ball
- plate blank
- punching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000004080 punching Methods 0.000 claims abstract description 25
- 230000003064 anti-oxidating effect Effects 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 239000000314 lubricant Substances 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 238000001192 hot extrusion Methods 0.000 claims description 4
- 239000004484 Briquette Substances 0.000 claims description 3
- 238000010410 dusting Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000219112 Cucumis Species 0.000 description 2
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010242 baoji Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a technology for preparing a pressure resisting titanium alloy half ball for a bathyscaph manned ball. The technology comprises the steps that firstly, a TC4 ELI titanium alloy thick plate for punching is cropped to be round according to the size of a target ball to serve as a plate blank to be punched; secondly, a forming die is designed according to the size of the target ball and a TC4 ELI titanium alloy material expansion coefficient; thirdly, the plate blank to be punched and the surface of the forming die are coated with an anti-oxidation lubrication coating; fourthly, the plate blank to be punched is heated to 850 DEG C to 930 DEG C, and insulating is carried out for 2-4 hours; fifthly, the heated plate blank to be punched is punched on a lower die of the forming die, the temperature drop is strictly controlled in the punching process, and when the temperature of the plate blank to be punched is reduced to be below 700 DEG C, punching is stopped, the plate blank to be punched is returned to a furnace again, secondary punching is carried out, and the process is executed circularly till the plate blank to be punched is punched into the half ball. Compared with multi-scalloped-segment installing and welding, a large number of weld lines can be reduced, and obvious advantages on the ball size precision control, ball pressure bearing and safety performance are achieved.
Description
Technical field
The present invention relates to titanic alloy machining technical field, be specifically related to the withstand voltage titanium alloy hemisphere preparation technology of a kind of bathyscaph manned sphere.
Background technology
It is high that titanium alloy has specific strength, ability local and homogeneous corrosion in the seawater, having high fatigue behaviour and corrosion fatigue limit, and have the performance such as sufficiently high fracture toughness and sea water resistance stress corrosion cracking, is the excellent materials making the withstand voltage manned sphere of benthoscope.Manned capsule spherical shell is the most important component of submersible, and its designing and making quality is the important guarantee of submersible performance and crew's safety.What prior art was taked is that 6 melon lobe assembly weldings become hemisphere, then becomes spherical shell by two hemispheres butt welding, and weld seam is many, and manufacturing process is complicated.
Summary of the invention
The invention provides the withstand voltage titanium alloy hemisphere preparation technology of a kind of bathyscaph manned sphere, by designing and producing Special punching die, under specific process conditions, by under rational pressure, temperature and deflection, realizing the withstand voltage hemisphere of stamping making.
The present invention includes following steps:
The first step, is cut into circle, as slab to be punched according to target sphere size by TC4 ELI titanium alloy thick plate used for punching press;
Second step, according to target sphere size and TC4 ELI titanium alloy material coefficient of expansion design shaping dies;
3rd step, applies anti-oxidation lubricant coating at slab to be punched and forming mould surface;
4th step, by heating of plate blank to 850 ~ 930 DEG C to be punched, is incubated 2 ~ 4 hours;
5th step, is placed on the counterdie of shaping dies by the slab to be punched after heating, uses more than 3000 tons press punching presses, cavity rate 10 ~ 100mm/s; Punching course strictly will control temperature drop, punching press is stopped when board briquette to be punched drops to below 700 DEG C, when temperature drops to 500 DEG C, depart from upper and lower mould, slab to be punched is melted down again and is heated to 850 ~ 930 DEG C, be incubated again be placed on shaping dies after 2 ~ 4 hours counterdie on carry out second time punching press, so circulation is until strike out hemisphere by slab to be punched.
Select the outer dusting of hot extrusion of titanium alloy section bar glass lubricant as anti-oxidation lubricant coating.
Punching press number of times in described 5th step is 2 ~ 3 times.
Compared to prior art, the present invention has the following advantages: the stamping spherical shell more melon lobe assembly welding that is welded into of whole hemisphere can reduce weld seam in a large number, in sphere size precision controlling, spheroid pressure-bearing and security performance, all have clear superiority.
Accompanying drawing explanation
Fig. 1 is the structural representation of mould of the present invention.
Detailed description of the invention
The embodiments described below are only a part of embodiments of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The first step, is cut into circle according to bathyscaph manned sphere hemisphere compact dimensions by TC4 ELI titanium alloy thick plate used for punching press, as slab to be punched, is of a size of Φ 3150 × 90mm;
Second step, according to bathyscaph manned sphere hemisphere compact dimensions and following process needs, in conjunction with the TC4 ELI titanium alloy coefficient of expansion, on the basis of the material contrast such as steel, pure titanium test, designs and determines final die size.Fig. 1 is that the present invention prepares titanium alloy half ball shaping mould schematic diagram.In figure, 3 is upper mould hemisphere, is connected with forcing press 1 by connecting rod; 4 is counterdie ring body, is fixed on bearing 5.2 as blank holder, plays the effect fixing counterdie in punching course;
3rd step, applies anti-oxidation lubricant coating at slab to be punched and forming mould surface, preferably selects the outer dusting of hot extrusion of titanium alloy section bar glass lubricant as anti-oxidation lubricant coating; Described hot extrusion of titanium alloy section bar glass lubricant (CN201310481682.8) by associating Beijing Tianlichuang Glass Technology Development Co., Ltd. of Baoji Titanium Industry Co., Ltd., Beijing Non-Ferrous Metal Research General Academy's development & production.
4th step, puts into heating furnace by slab to be punched, and furnace temperature is from 700 DEG C, and firing rate 60 ~ 120 DEG C/h, is heated to 850 ~ 930 DEG C, is incubated 2 ~ 4 hours;
5th step, is placed on the slab to be punched after heating on the counterdie of shaping dies, and centering, use more than 3000 tons press punching presses, cavity rate 10 ~ 100mm/s; Punching course strictly will control temperature drop, temperature measurer is used to detect blank temperature, punching press is stopped when board briquette to be punched drops to below 700 DEG C, when temperature drops to 500 DEG C, depart from upper and lower mould, slab to be punched is melted down again and is heated to 850 ~ 930 DEG C, be incubated again be placed on shaping dies after 2 ~ 4 hours counterdie on carry out second time punching press, so circulate and slab to be punched can be struck out hemisphere 2 ~ 3 times.
Stamping forming semi-spherical size testing result:
| Inside radius mm | Thickness mm | |
| Minimum of a value | 1028 | 84.91 |
| Maximum | 1035.5 | 89.69 |
| Mean value | 1032 | 87.3 |
| Theoretical value | 1050 | 90 |
The design performance of punching press hemisphere and actual testing result:
By size detection and performance comparison, the titanium alloy hemisphere that punching press is made meets design requirement.Show that the present invention makes bathyscaph manned sphere feasible with withstand voltage titanium alloy hemisphere.
Claims (3)
1. the withstand voltage titanium alloy hemisphere preparation technology of bathyscaph manned sphere, is characterized in that comprising the steps:
The first step, is cut into circle, as slab to be punched according to target sphere size by TC4 ELI titanium alloy thick plate used for punching press;
Second step, according to target sphere size and TC4 ELI titanium alloy material coefficient of expansion design shaping dies;
3rd step, applies anti-oxidation lubricant coating at slab to be punched and forming mould surface;
4th step, by heating of plate blank to 850 ~ 930 DEG C to be punched, is incubated 2 ~ 4 hours;
5th step, is placed on the counterdie of shaping dies by the slab to be punched after heating, uses more than 3000 tons press punching presses, cavity rate 10 ~ 100mm/s; Punching course strictly will control temperature drop, punching press is stopped when board briquette to be punched drops to below 700 DEG C, when temperature drops to 500 DEG C, depart from upper and lower mould, slab to be punched is melted down again and is heated to 850 ~ 930 DEG C, be incubated again be placed on shaping dies after 2 ~ 4 hours counterdie on carry out second time punching press, so circulation is until strike out hemisphere by slab to be punched.
2. the withstand voltage titanium alloy hemisphere preparation technology of bathyscaph manned sphere according to claim 1, is characterized in that: select the outer dusting of hot extrusion of titanium alloy section bar glass lubricant as anti-oxidation lubricant coating.
3. the withstand voltage titanium alloy hemisphere preparation technology of bathyscaph manned sphere according to claim 1 and 2, is characterized in that: the punching press number of times in described 5th step is 2 ~ 3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345588.9A CN104923603B (en) | 2015-06-23 | 2015-06-23 | Bathyscaph manned sphere is with pressure titanium alloy hemisphere preparation technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345588.9A CN104923603B (en) | 2015-06-23 | 2015-06-23 | Bathyscaph manned sphere is with pressure titanium alloy hemisphere preparation technology |
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| Publication Number | Publication Date |
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| CN104923603A true CN104923603A (en) | 2015-09-23 |
| CN104923603B CN104923603B (en) | 2017-03-08 |
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| CN201510345588.9A Active CN104923603B (en) | 2015-06-23 | 2015-06-23 | Bathyscaph manned sphere is with pressure titanium alloy hemisphere preparation technology |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271395A (en) * | 2016-08-04 | 2017-01-04 | 易飞 | A kind of processing technique of special-shaped stethoscope tin |
| CN107287522A (en) * | 2017-08-09 | 2017-10-24 | 西安汇丰精密合金制造有限公司 | A kind of manufacture method of deep sea manned submersible ballast tank |
| CN108057758A (en) * | 2017-12-08 | 2018-05-22 | 航天材料及工艺研究所 | A kind of superplasticity isothermal stamping process of TA7 titanium alloys thick spherical shell |
| WO2019071652A1 (en) * | 2017-10-13 | 2019-04-18 | 朱卫 | Process for producing motor housing by using titanium metal |
| CN109702071A (en) * | 2019-01-11 | 2019-05-03 | 厦门理工学院 | A kind of explosion forming mould and its forming method |
| CN110355527A (en) * | 2018-04-11 | 2019-10-22 | 张文票 | A kind of punching production technique of hemisphere |
| CN110640003A (en) * | 2019-09-17 | 2020-01-03 | 成都飞机工业（集团）有限责任公司 | Forming process method of titanium alloy ultra-thick wall plate |
| EP3588747A4 (en) * | 2017-10-13 | 2020-04-22 | Wei Zhu | CRANKCASE PRODUCED USING TITANIUM |
| CN111451423A (en) * | 2020-03-19 | 2020-07-28 | 中国船舶重工集团公司第七二五研究所 | Manufacturing process method of titanium alloy ultrahigh-pressure-resistant spherical shell blank |
| CN112958678A (en) * | 2021-02-04 | 2021-06-15 | 宝鸡盛辉钛业有限公司 | Processing technology of deep-sea pressure-resistant titanium alloy semi-spherical cabin |
| CN114346624A (en) * | 2022-03-15 | 2022-04-15 | 湖南湘投金天科技集团有限责任公司 | Preparation method of titanium alloy pressure-resistant spherical shell |
| CN114799001A (en) * | 2022-03-30 | 2022-07-29 | 西安航天发动机有限公司 | Hot processing method for forming large-size storage box hemisphere blank by adopting single-action hydraulic press |
| CN118699190A (en) * | 2024-06-28 | 2024-09-27 | 鞍钢股份有限公司 | A stamping equipment and pressing process for ultra-high-strength steel hemispherical head |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106271395A (en) * | 2016-08-04 | 2017-01-04 | 易飞 | A kind of processing technique of special-shaped stethoscope tin |
| CN107287522B (en) * | 2017-08-09 | 2019-02-19 | 西安汇丰精密合金制造有限公司 | A kind of manufacturing method of deep sea manned submersible ballast tank |
| CN107287522A (en) * | 2017-08-09 | 2017-10-24 | 西安汇丰精密合金制造有限公司 | A kind of manufacture method of deep sea manned submersible ballast tank |
| EP3588747A4 (en) * | 2017-10-13 | 2020-04-22 | Wei Zhu | CRANKCASE PRODUCED USING TITANIUM |
| WO2019071652A1 (en) * | 2017-10-13 | 2019-04-18 | 朱卫 | Process for producing motor housing by using titanium metal |
| EP3588752A4 (en) * | 2017-10-13 | 2020-04-22 | Wei Zhu | PROCESS FOR PRODUCING A CRANKCASE USING METAL TITANIUM |
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| CN108057758A (en) * | 2017-12-08 | 2018-05-22 | 航天材料及工艺研究所 | A kind of superplasticity isothermal stamping process of TA7 titanium alloys thick spherical shell |
| CN110355527A (en) * | 2018-04-11 | 2019-10-22 | 张文票 | A kind of punching production technique of hemisphere |
| CN109702071A (en) * | 2019-01-11 | 2019-05-03 | 厦门理工学院 | A kind of explosion forming mould and its forming method |
| CN109702071B (en) * | 2019-01-11 | 2021-05-11 | 厦门理工学院 | A kind of explosion molding die and its molding method |
| CN110640003A (en) * | 2019-09-17 | 2020-01-03 | 成都飞机工业（集团）有限责任公司 | Forming process method of titanium alloy ultra-thick wall plate |
| CN111451423A (en) * | 2020-03-19 | 2020-07-28 | 中国船舶重工集团公司第七二五研究所 | Manufacturing process method of titanium alloy ultrahigh-pressure-resistant spherical shell blank |
| CN112958678A (en) * | 2021-02-04 | 2021-06-15 | 宝鸡盛辉钛业有限公司 | Processing technology of deep-sea pressure-resistant titanium alloy semi-spherical cabin |
| CN114346624A (en) * | 2022-03-15 | 2022-04-15 | 湖南湘投金天科技集团有限责任公司 | Preparation method of titanium alloy pressure-resistant spherical shell |
| CN114799001A (en) * | 2022-03-30 | 2022-07-29 | 西安航天发动机有限公司 | Hot processing method for forming large-size storage box hemisphere blank by adopting single-action hydraulic press |
| CN114799001B (en) * | 2022-03-30 | 2024-07-16 | 西安航天发动机有限公司 | Hot working method for forming large size tank hemispherical blanks using single-acting hydraulic press |
| CN118699190A (en) * | 2024-06-28 | 2024-09-27 | 鞍钢股份有限公司 | A stamping equipment and pressing process for ultra-high-strength steel hemispherical head |
| CN118699190B (en) * | 2024-06-28 | 2025-11-18 | 鞍钢股份有限公司 | A stamping equipment and pressing process for an ultra-high strength steel hemispherical head. |
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