CN103316941B - The pressing method of large-bore titanium alloy pipe - Google Patents
The pressing method of large-bore titanium alloy pipe Download PDFInfo
- Publication number
- CN103316941B CN103316941B CN201310267265.3A CN201310267265A CN103316941B CN 103316941 B CN103316941 B CN 103316941B CN 201310267265 A CN201310267265 A CN 201310267265A CN 103316941 B CN103316941 B CN 103316941B
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- diameter
- alloy pipe
- blank
- extrusion die
- 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.)
- Active
Links
Landscapes
- Extrusion Of Metal (AREA)
- Metal Extraction Processes (AREA)
Abstract
The present invention relates to a kind of pressing method of large-bore titanium alloy pipe, it comprises following step successively: <b> I </b>, parcel copper sheathing, at the copper sheathing that blank surfaces externally and internally parcel 2 ~ 3mm is thick; <b> II </b>, heating, put into induction furnace by blank, is heated to 910 ~ 930 DEG C, temperature retention time 20 ~ 25min; In the heating period, heating power 80 ~ 100KW; <b> III </b>, extruding, utilize horizontal extruder to be expressed to by the blank heated and require size; Extrusion die size is as follows: the diameter of extrusion die work strip is 1.012 times of the overall diameter of large-bore titanium alloy pipe; The radius of extrusion die entrance circular arc is 15 ± 0.1mm; Extrusion die Toe angle is 5 ± 0.1 °; The diameter of squeezing needle work strip is 1.007 times of the interior diameter of large-bore titanium alloy pipe; The diameter of squeezing needle endoporus is 35 ± 0.1mm.The pressing method of this large-bore titanium alloy pipe realizes the suitability for industrialized production of large-bore titanium alloy pipe.
Description
Technical field
The present invention relates to a kind of pressing method of large-bore titanium alloy pipe.
Background technology
Titanium alloy is a kind of novel structural material, and it has excellent combination property, as little in density, specific strength and fracture toughness is high, fatigue strength and resistance to crack extension ability is good, low-temperature flexibility is good, etch resistant properties is excellent.Therefore he obtains increasingly extensive application at industrial departments such as Aeronautics and Astronautics, chemical industry, shipbuildings.Existing titanium alloy seamless pipe many employings perforation+rolling or extruding+rolling mode are produced, because being subject to the restriction of heating process and equipment, the development of heavy caliber (150 < D≤610mm) titanium pipe production technology is comparatively slow, does not possess the condition of suitability for industrialized production.
Summary of the invention
In order to overcome the above-mentioned deficiency of existing large-bore titanium alloy pipe production method, the invention provides a kind of can the large-bore titanium alloy pipe pressing method of suitability for industrialized production.
The pressing method of this large-bore titanium alloy pipe comprises following step successively:
iparcel copper sheathing
At the copper sheathing that blank surfaces externally and internally parcel 2 ~ 3mm is thick, the overall diameter of blank is 1.35 ~ 1.85 times of the overall diameter of large-bore titanium alloy pipe; Interior diameter 5 ~ the 12mm larger than the interior diameter of large-bore titanium alloy pipe of blank; Lubrication will be played in hot extrusion process at the copper sheathing of blank surfaces externally and internally parcel.
iIheating
Blank is put into induction furnace, with the firing rate of 5 ~ 10mm/min, blank is heated to target temperature 910 ~ 930 DEG C by room temperature, temperature retention time 20 ~ 25min; In the heating period, low-power need be taked to heat, heating power 80 ~ 100KW.
iIIextruding
Utilize horizontal extruder to be expressed to by the blank heated and require size; Extrusion die size is as follows:
The diameter of extrusion die work strip is 1.012 times of the overall diameter of large-bore titanium alloy pipe; (because the overall diameter cooling rear titanium alloy tube will reduce)
The radius of extrusion die entrance circular arc is 15 ± 0.1mm;
Extrusion die Toe angle is 5 ± 0.1 °;
The diameter of squeezing needle work strip is 1.007 times of the interior diameter of large-bore titanium alloy pipe; (because the interior diameter cooling rear titanium alloy tube will reduce)
The diameter of squeezing needle endoporus is 35 ± 0.1mm;
Be hot extruded into titanium alloy tube.
The present invention realizes the suitability for industrialized production of large-bore titanium alloy pipe by the mode of copper bush lubrication, induction furnace heating, horizontal type extruding.
Accompanying drawing explanation
Fig. 1 is the axial sectional view of extrusion die of the present invention.
Fig. 2 is the axial sectional view of squeezing needle of the present invention.
Fig. 3 is the partial enlarged drawing of right-hand member in Fig. 2.
In above-mentioned Fig. 1:
1-extrusion die lateral surface, 2-extrusion die entrance circular arc, 3-extrusion die work strip
4-feed side end face, 5-extrusion die Toe angle, 6-exit side end face
In above-mentioned Fig. 2:
7-squeezing needle work strip, determines extruded tube hole size
8-squeezing needle targeting part, forms Closed End with dummy block, prevents metal from flowing backwards
9-squeezing needle endoporus, circulates for squeezing needle inner cold water
10-squeezing needle connecting thread.
Detailed description of the invention
Describe the specific embodiment of the present invention in detail below in conjunction with embodiment and accompanying drawing thereof, but the specific embodiment of the present invention is not limited to following embodiment.
embodiment
The external diameter of the titanium alloy tube of the present embodiment extruding is Φ 172mm internal diameter is Φ 134mm, long 4000mm.Material used is titanium alloy TC 4, and the mass percent of its chemical composition is:
Fe0.2；C0.08；N0.04；H0.010；O0.1；
Al6.2; V4.5; All the other are Ti and inevitable impurity.
The present embodiment 320 serial recipients.(being the standard of the industry)
Blank external diameter Φ 306mm; Blank internal diameter Φ 140mm;
Extruding specification Φ 172 × 19mm;
The extrusion die that the present embodiment is used and squeezing needle are shown in Fig. 1 and Fig. 2, the diameter of phi 174mm of extrusion die work strip 3; The diameter of phi 135mm of squeezing needle work strip 7; Extrusion die entrance arc radius 2 is 15mm, and extrusion die Toe angle 5 is 5 °; The diameter 140mm of squeezing needle targeting part 8; The diameter of squeezing needle endoporus 9 is 35mm.
The embodiment of the pressing method of this large-bore titanium alloy pipe comprises following step successively:
iparcel copper sheathing
At blank surfaces externally and internally parcel copper sheathing.
The general glass dust of stainless steel hot extruding lubricates, and for titanium alloy hot extrusion, be subject to the restriction that heating-up temperature is low, the phenomenons such as vexed car, broken needle can be caused because frictional force is large by glass dust lubrication, adopt the lubricating system of parcel copper sheathing then can play good lubricant effect.
iIheating
Blank is put into induction furnace, utilizes induction furnace, blank is heated to target temperature by room temperature.Due to the Kelvin effect of eddy-current heating, very easily make the copper sheathing of blank surface break because heating up too fast, therefore in the heating period, low-power need be taked to heat, ensure the integrality of copper sheathing in heating process.
Firing equipment HWT induction furnace; Target temperature 920 DEG C;
Heating power 90KW; Temperature retention time 22min;
iIIextruding
Blank and extrusion die and squeezing needle are arranged on 6000T horizontal extruder, are squeezed into the titanium alloy tube that external diameter Φ 172mm internal diameter is Φ 134mm, long 4000mm.
Large-bore titanium alloy extruded tube causes extruding breakthrough power to increase because extrusion ratio is large, by heating process and the restriction of producing equipment, its suitability for industrialized production one is restricted, and 6000T horizontal extruder makes its suitability for industrialized production obtain possibility.
Claims (1)
1. a pressing method for large-bore titanium alloy pipe, it comprises following step successively:
iparcel copper sheathing
At the copper sheathing that blank surfaces externally and internally parcel 2 ~ 3mm is thick, the overall diameter of blank is 1.35 ~ 1.85 times of the overall diameter of large-bore titanium alloy pipe; Interior diameter 5 ~ the 12mm larger than the interior diameter of large-bore titanium alloy pipe of blank;
iIheating
Blank is put into induction furnace, with the firing rate of 5 ~ 10mm/min, blank is heated to target temperature 910 ~ 930 DEG C by room temperature, temperature retention time 20 ~ 25min; In the heating period, low-power is taked to heat, heating power 80 ~ 100KW;
iIIextruding
Utilize horizontal extruder to be expressed to by the blank heated and require size; Extrusion die size is as follows:
The diameter of extrusion die work strip is 1.012 times of the overall diameter of large-bore titanium alloy pipe;
The radius of extrusion die entrance circular arc is 15 ± 0.1mm;
Extrusion die Toe angle is 5 ± 0.1 °;
The diameter of squeezing needle work strip is 1.007 times of the interior diameter of large-bore titanium alloy pipe;
The diameter of squeezing needle endoporus is 35 ± 0.1mm;
Be hot extruded into titanium alloy tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310267265.3A CN103316941B (en) | 2013-06-30 | 2013-06-30 | The pressing method of large-bore titanium alloy pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310267265.3A CN103316941B (en) | 2013-06-30 | 2013-06-30 | The pressing method of large-bore titanium alloy pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103316941A CN103316941A (en) | 2013-09-25 |
| CN103316941B true CN103316941B (en) | 2016-01-27 |
Family
ID=49186152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310267265.3A Active CN103316941B (en) | 2013-06-30 | 2013-06-30 | The pressing method of large-bore titanium alloy pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103316941B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736732A (en) * | 2013-12-26 | 2014-04-23 | 内蒙古北方重工业集团有限公司 | Machining method of cogging extrusion of large diameter steel pipe |
| CN103909111A (en) * | 2014-03-27 | 2014-07-09 | 攀钢集团成都钢钒有限公司 | Titanium alloy seamless tube and production method thereof |
| CN108747246A (en) * | 2018-04-27 | 2018-11-06 | 宁夏德运创润钛业有限公司 | A kind of preparation method for squeezing the extrusion die of titanium or titanium alloy tube rod |
| CN111036705B (en) * | 2019-12-19 | 2021-07-02 | 湖南金天钛业科技有限公司 | Large-caliber titanium alloy seamless pipe and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB774693A (en) * | 1954-04-14 | 1957-05-15 | Ass Elect Ind | Improvements relating to the lubrication of metallic surfaces |
| CN86106477A (en) * | 1986-09-29 | 1988-04-13 | 宝鸡有色金属加工厂 | The method of double-deck jacket extruding titanium alloy |
| CN101284284A (en) * | 2008-05-09 | 2008-10-15 | 常荣波 | Extrusion process of titanium copper composite type material |
| CN101284350A (en) * | 2008-05-09 | 2008-10-15 | 常荣波 | Titanium and titanium alloy sectional materials machining technique |
| CN101733641A (en) * | 2009-12-18 | 2010-06-16 | 西北有色金属研究院 | Manufacturing method of large-calibre seamless titanium alloy barrel body |
-
2013
- 2013-06-30 CN CN201310267265.3A patent/CN103316941B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB774693A (en) * | 1954-04-14 | 1957-05-15 | Ass Elect Ind | Improvements relating to the lubrication of metallic surfaces |
| CN86106477A (en) * | 1986-09-29 | 1988-04-13 | 宝鸡有色金属加工厂 | The method of double-deck jacket extruding titanium alloy |
| CN101284284A (en) * | 2008-05-09 | 2008-10-15 | 常荣波 | Extrusion process of titanium copper composite type material |
| CN101284350A (en) * | 2008-05-09 | 2008-10-15 | 常荣波 | Titanium and titanium alloy sectional materials machining technique |
| CN101733641A (en) * | 2009-12-18 | 2010-06-16 | 西北有色金属研究院 | Manufacturing method of large-calibre seamless titanium alloy barrel body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103316941A (en) | 2013-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103316941B (en) | The pressing method of large-bore titanium alloy pipe | |
| JP4438960B2 (en) | Seamless pipe manufacturing method | |
| CN104831120B (en) | The manufacture method of titanium alloy seamless tube | |
| CN106811277B (en) | Titanium and titanium alloy pipe drawing lubricant and use method thereof | |
| WO2007121622A1 (en) | A Cu/Al COMPOSITE PIPE AND A MANUFACTURING METHOD THEREOF | |
| CN105992832B (en) | Cu alloy material and copper alloy tube | |
| CN103599957B (en) | A kind of extrusion process of hydrocracking stove austenitic stainless steel seamless pipe | |
| CN103394532B (en) | Continuous hot-drawing forming method for nickel-titanium alloy pipe | |
| Jin et al. | Experimental research on applying the copper-clad aluminum tube as connecting tubes of air conditioners | |
| CN102899595A (en) | Copper-nickel alloy tube preparation method | |
| CN107008767A (en) | A kind of Ni-based less-deformable alloy pipe joint hot-working method | |
| CN104107845B (en) | A kind of production technology of stainless-steel pipe | |
| MY162510A (en) | Copper alloys and heat exchanger tubes | |
| CN105344731A (en) | TC11 titanium alloy seamless pipe and preparation method thereof | |
| SA522441323B1 (en) | Copper Alloy Tube for Heat Exchanger With Excellent Thermal Conductivity and Breaking Strength and Method of Manufacturing The Same | |
| CN202195736U (en) | Coolant refrigeration copper tube | |
| CN103409212A (en) | Lubricant for hot rolling of molybdenum/molybdenum alloy plate strip material | |
| JP5883383B2 (en) | Internal grooved tube with excellent extrudability | |
| CN105143479A (en) | Copper alloy seamless tube for heat transfer tube | |
| Li et al. | Research on the impact of mandrels in titanium tubes during tube continuous rolling | |
| JP5990496B2 (en) | Phosphorus deoxidized copper pipe for heat exchanger | |
| CN102615135B (en) | Preparation method of coolant refrigeration copper tube | |
| JP2017036468A (en) | Copper alloy tube | |
| JP5607294B2 (en) | Heat transfer tube | |
| Baghdadi et al. | Study on microstructure and tensile properties of new Cu-al Bi-metal tubes versus pure copper tubes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |