CN201482817U - Extrusion die for manufacturing external upset aluminium drill pipe - Google Patents
Extrusion die for manufacturing external upset aluminium drill pipe Download PDFInfo
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- CN201482817U CN201482817U CN2009202096643U CN200920209664U CN201482817U CN 201482817 U CN201482817 U CN 201482817U CN 2009202096643 U CN2009202096643 U CN 2009202096643U CN 200920209664 U CN200920209664 U CN 200920209664U CN 201482817 U CN201482817 U CN 201482817U
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- extrusion die
- drill pipe
- calibrating strap
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- extrusion
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Abstract
The utility model relates to an extrusion die for manufacturing an external upset aluminium drill pipe, which comprises an extrusion needle and an extrusion die, wherein the extrusion die is an integral extrusion die of a die hole; the die hole is provided with two reducing sizing tapes at intervals along the axial direction; the two reducing sizing tapes are in scarfed coupling; a working tape and a reducing tape are arranged backwards at intervals along the axial direction at the extrusion needle end; the outer diameter of the working tape is larger than that of the reducing tape; the working tape and the reducing tape are in scarfed coupling; the die is used for manufacturing the external upset aluminium drill pipe, overcomes the defects of the traditional manufacturing method, and improves the manufacturing quality and efficiency of the aluminium drill pipe.
Description
Technical field
The utility model relates to the extrusion die of making body, relates in particular to a kind of extrusion die that is used to make the external upset (EU) aluminium drill pipe.
Background technology
In oil, pneumatic drill are visited, conventional steel drilling tool is because the characteristic of himself, poor as corrosion resistance, density is big etc., make in some complicated drilling wells as ultradeep well, marine drilling, the highly corrosive well, the use of polar region permafrost band etc. has been subjected to restriction to a certain degree, and the exploitation and the application of non-drill steel necessitate.Compare with conventional drill steel, aluminium drill pipe density is little, can reduce the rig load, improves the overload stretch capability of deep-well drilling rod, accelerates bit speed.Secondly, the aluminium alloy elastic modelling quantity is equivalent to 33% of steel approximately, has good counter-bending load performance, thereby improves the resistance to bending fatigue of drill string.In addition, aluminium drill pipe also has advantages such as resistance to corrosion is strong, no magnetic characteristic.Abroad, aluminium drill pipe has been applied to the ultradeep well drilling well, various complicated drilling wells such as directed drilling and continental shelf marine drilling.
The drill steel body is a kind of change section pipe of body two ends external upset (EU), interior thickening, internal-external thickening form, and its preparation is that the method by equal cross section seamless pipe two ends jumping-up realizes.According to aluminium drill pipe standard ISO 15546, aluminium alloy drill pipe body is that the body two ends are a kind of change section body of external upset (EU), interior thickening form, also comprise the body two ends be external upset (EU) and middle outer thicken, interior thickening and the middle outer complexity that thickens become the section pipe.But when reaching 1300mm for the length of the internal thread upset end of external upset (EU) aluminium alloy drill pipe body, it is oversize to adopt the method for jumping-up to exist thickening length, the unmanageable problem of texturing quality.And in the ISO15546 standard, for how preparing this seamless Al-alloy pipe with variable cross-section of over-length upset end, do not relate to.
At present, the most frequently used method of extruding change section tubing is to adopt how the cover segmental mandrels push basic tubing part step by step and become section part both at home and abroad.This just need shut down in extrusion process, so that more mold exchange and guiding mechanism, gap often not good because of the combination of mould lobe, the combination of mould lobe is big, and the metal solid size of tubing part is exceeded standard.Owing to be to adopt the segmentation extrusion to produce, the mould tube surfaces of damaging easily takes place in manual die change at nearly transition region place, influence surface quality, product for dimensional accuracy and surface quality are had relatively high expectations often needs to carry out follow-up machining, and the characteristics of extruding can not be given full play to.Particularly these methods can only be pushed the ascending change section tubing that once changes of section, can't push descending, ascending continuous change section tubing or the special-shaped part that repeats to change again of section, thereby can not give full play to the superiority that becomes the section section bar, limited the kind and the range of application that become the section extrusion.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of extrusion die that is used to make the external upset (EU) aluminium drill pipe; utilize this mould can make the aluminium drill pipe of external upset (EU); also can make external upset (EU) and the aluminium drill pipe that thickens protector; the defective that it has overcome the traditional fabrication method has improved the making quality and the efficient of aluminium drill pipe.
For solving the problems of the technologies described above, the extrusion die that the utility model is used to make the external upset (EU) aluminium drill pipe comprises extruding pin and extrusion die, described extrusion die is the monolithic extruded mould of a nib, described extrusion die nib is interval with reducing first calibrating strap and second calibrating strap vertically respectively, the described second calibrating strap internal diameter is greater than the described first calibrating strap internal diameter, the inclined-plane connects between described first calibrating strap and second calibrating strap, described extruding pin pin front end is interval with the work zone and the band that directly contracts backward vertically successively, described work zone external diameter is greater than the described footpath band external diameter that contracts, and contracting in described work zone and footpath, the inclined-plane connects between the band.
Be to guarantee the dimensional accuracy that aluminium drill pipe is made, poor greater than the work zone cross sectional area of the second calibrating strap cross section of described extrusion die and described extruding pin of the difference of being with cross sectional area contracts for the first calibrating strap cross section of above-mentioned extrusion die and the footpath of described extruding pin.
Because being used to make the extrusion die of external upset (EU) aluminium drill pipe, the utility model adopted technique scheme, promptly adopt extruding pin and extrusion die as extrusion die, extrusion die is the monolithic extruded mould of a nib, its nib is interval with two reducing calibrating straps vertically, and the inclined-plane connects between two calibrating straps; The extruding needle end is interval with the work zone and the band that directly contracts backward vertically, and the work zone external diameter is greater than the band external diameter that directly contracts, and contracting in work zone and footpath, the inclined-plane connects between the band; Utilize this mould can make the aluminium drill pipe of external upset (EU), the defective that it has overcome the traditional fabrication method has improved the making quality and the efficient of aluminium drill pipe.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the extrusion die structural representation of the utility model extrusion die,
Fig. 2 is the extruding needle construction schematic diagram of the utility model extrusion die,
Fig. 3 is the structural representation of the utility model extrusion die assembling.
The specific embodiment
As depicted in figs. 1 and 2, the extrusion die that the utility model is used to make the external upset (EU) aluminium drill pipe comprises extruding pin 1 and extrusion die 2, described extrusion die 2 is monolithic extruded moulds of a nib 23, the nib 23 of described extrusion die 2 is interval with reducing first calibrating strap 21 and second calibrating strap 22 vertically respectively, described second calibrating strap, 22 internal diameters are greater than described first calibrating strap, 21 internal diameters, the inclined-plane connects between described first calibrating strap 21 and second calibrating strap 22, first calibrating strap, 21 internal diameters control external upset (EU) aluminium alloy drill pipe body external diameter, second calibrating strap, 22 internal diameters control external upset (EU) aluminium alloy drill pipe body thick section external diameter, described extruding pin 1 pin front end is interval with work zone 12 backward vertically successively and directly contracts and be with 11, described work zone 12 external diameters contract greater than described footpath and are with 11 external diameters, the inclined-plane connects between contracting and be with 11 in described work zone 12 and footpath, work zone 12 external diameters control external upset (EU) aluminium alloy drill pipe body internal diameter, footpath contract with 11 and first calibrating strap 21 of extrusion die 2 between the amount of the aluminium alloy extruded material in clearance control external upset (EU) aluminium alloy drill pipe body thick section.
Be guaranteeing the dimensional accuracy that aluminium drill pipe is made, contracts with poor greater than work zone 12 cross sectional areas of second calibrating strap, 22 cross sections of described extrusion die 2 and described extruding pin 1 of the difference of 11 cross sectional areas in first calibrating strap, 21 cross sections of above-mentioned extrusion die 2 and the footpath of described extruding pin 1.
As shown in Figure 3, when the external upset (EU) aluminium drill pipe is made, extruding pin 1 is positioned at extrusion axis 3 central through holes of extruder, extrusion axis 3 is positioned at recipient 4, extrusion die 2 is provided with an end of first calibrating strap 21 and is located at recipient 4 one ends, extruder is to the 1 independent control of extruding pin, extruding pin 1 head end moves in the nib of extrusion die 2, behind the above-mentioned installation in position, will be in the aluminium alloy cast ingot 5 after the processing be packed recipient 4 into, aluminium alloy cast ingot 5 and compression tool are heated to proper temperature, mobile extrusion axis 3 is gone into recipient 4, extruding pin 1 is squeezed into aluminium alloy cast ingot 5 and accurately moves into second calibrating strap 22 that extrusion die 2 is positioned at extrusion die 2 by the work zone 12 that extruding pin control system will be pushed pin 1, utilize the extrusion axis control system to begin the thick section of extruding aluminium alloy drill pipe body;
Extruding pin control system will push pin 1 and be travelled forward and make the work zone 12 of pushing pin 1 be positioned at second calibrating strap 22 of extrusion die 2, extrusion axis 3 continues extruding aluminium alloy ingot casting 5, the thick section of second calibrating strap, the 22 control extruding aluminium alloy drill pipe body other ends of the work zone 12 of utilization extruding pin 1 and extrusion die 2.
When the thick section of aluminium alloy drill pipe body other end size reached designing requirement, cutting machine downcut the external upset (EU) aluminium alloy drill pipe body that is shaped, and finishes whole extrusion process.
After extrusion process was finished, aluminium alloy drill pipe body was through Overheating Treatment, aligning, cut scale after, just formed standard compliant aluminium alloy drill pipe body.
Claims (2)
1. extrusion die that is used to make the external upset (EU) aluminium drill pipe, it is characterized in that: this mould comprises extruding pin and extrusion die, described extrusion die is the monolithic extruded mould of a nib, described extrusion die nib is interval with reducing first calibrating strap and second calibrating strap vertically respectively, the described second calibrating strap internal diameter is greater than the described first calibrating strap internal diameter, the inclined-plane connects between described first calibrating strap and second calibrating strap, described extruding pin pin front end is interval with the work zone and the band that directly contracts backward vertically successively, described work zone external diameter is greater than the described footpath band external diameter that contracts, and contracting in described work zone and footpath, the inclined-plane connects between the band.
2. the extrusion die that is used to make the external upset (EU) aluminium drill pipe according to claim 1 is characterized in that: poor greater than the work zone cross sectional area of the second calibrating strap cross section of described extrusion die and described extruding pin of the difference of band cross sectional area contracts for the first calibrating strap cross section of described extrusion die and the footpath of described extruding pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202096643U CN201482817U (en) | 2009-09-14 | 2009-09-14 | Extrusion die for manufacturing external upset aluminium drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202096643U CN201482817U (en) | 2009-09-14 | 2009-09-14 | Extrusion die for manufacturing external upset aluminium drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201482817U true CN201482817U (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202096643U Expired - Lifetime CN201482817U (en) | 2009-09-14 | 2009-09-14 | Extrusion die for manufacturing external upset aluminium drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201482817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286152A (en) * | 2013-06-13 | 2013-09-11 | 吉林麦达斯铝业有限公司 | Method for manufacturing fracture surface changing seamless aluminium-alloy tubular product |
| CN113083927A (en) * | 2021-03-29 | 2021-07-09 | 西南铝业（集团）有限责任公司 | Variable-section pipe extrusion forming device and extruder |
-
2009
- 2009-09-14 CN CN2009202096643U patent/CN201482817U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286152A (en) * | 2013-06-13 | 2013-09-11 | 吉林麦达斯铝业有限公司 | Method for manufacturing fracture surface changing seamless aluminium-alloy tubular product |
| CN113083927A (en) * | 2021-03-29 | 2021-07-09 | 西南铝业（集团）有限责任公司 | Variable-section pipe extrusion forming device and extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HILONG DRILL PIPE CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110111 Address after: 200949 No. 1825 East Luo Road, Shanghai, Baoshan District Co-patentee after: Shanghai Hilong Drill Pipe Co., Ltd. Patentee after: Shanghai Hailong Petroleum Pipe Material Institute Address before: 200949 No. 1825 East Luo Road, Shanghai, Baoshan District Patentee before: Shanghai Hailong Petroleum Pipe Material Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |
|
| CX01 | Expiry of patent term |