CN103286152A - Method for manufacturing fracture surface changing seamless aluminium-alloy tubular product - Google Patents
Method for manufacturing fracture surface changing seamless aluminium-alloy tubular product Download PDFInfo
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- CN103286152A CN103286152A CN2013102317492A CN201310231749A CN103286152A CN 103286152 A CN103286152 A CN 103286152A CN 2013102317492 A CN2013102317492 A CN 2013102317492A CN 201310231749 A CN201310231749 A CN 201310231749A CN 103286152 A CN103286152 A CN 103286152A
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Abstract
The invention discloses a method for manufacturing a fracture surface changing seamless aluminium-alloy tubular product, which belongs to the technical field of aluminium alloy materials. The method comprises the following steps of: producing internal thickened parts, namely fixing the front part of an extrusion pin in an extrusion die hole before starting extruding in production, thereby extruding a front-end internal thickened part under the state, and retracting the extrusion pin to ensure that a shrinking part can face to the die hole, thereby manufacturing a rear-end internal thickened part; producing a normal-size part, namely moving the extrusion pin ahead to narrow a gap between the die hole and the extrusion pin and thin a tube wall, thereby manufacturing the normal-size part on the front end of a raw material of the extruding tubular product; producing an outer thickened part, namely moving the extrusion pin ahead to enlarge the gap between the die hole and the extrusion pin so as to increase the wall thickness of the outer thickened part because the inner diameter of the part of the tubular product raw material is reduced. The method provided by the invention has the beneficial effects that the fracture surface changing seamless tubular product can be produced, one-step extrusion forming is realized, the material organization of the product in a length direction is uniform and consistent, the product quality is greatly improved, the manufacturing technique is simplified, and the production cost is reduced.
Description
Technical field
The invention belongs to the aluminium alloy material technical field.
Background technology
At present, aluminium alloy pipe is divided into seamed pipe and seamless pipe.Seamed pipe is on the single action extruder, uses the diffluence combination die extrusion modling, and seamless pipe is on double-acting extruding machine, relies on pecker, mould to come moulding.The tubing that these common process methods are produced is along its vertical total length, and wall thickness, cross section be uniformity all.
Becoming the section pipe is that it goes up internal diameter along its length or wall thickness is inconsistent, produce seamless change section aluminium-alloy pipe at present, normally produce the seamless Al-alloy pipe material earlier, form upset end or form vertical wall thickness by the mode that metal is removed in cold working inconsistent then by the thick mode of two ends pier.By the change section pipe that the thick mode of pier is produced, great changes will take place for the institutional framework of its material, and technology difficulty is bigger, the quality instability; Remove the change section pipe that the mode of metal forms by cold working, be subjected to the restriction of processing mode, length can be oversize, and material unaccounted-for (MUF) is bigger.And existing a lot of product needed becomes section pipe aluminium alloy material, as bullet train etc.
Summary of the invention
The objective of the invention is: a kind of method that becomes section seamless Al-alloy pipe material of producing is provided, and it can realize an extrusion modling to producing the change section seamless Al-alloy pipe material that surpasses 10 meters length.
Method of the present invention is:
A, interior reinforcement: the forward part that will push pin during production is fixed on and just begins extruding in the extrusion die hole, and Ji Ya tubing raw material is the inside reinforcement of front end in this state.The extruding pin retreats into its constriction facing to the position of die hole, produces the inside reinforcement of tubing raw material rear end.
B, normal size part: the extruding pin moves ahead, and makes the gap between die hole and the extruding pin reduce tube wall attenuation, the normal size part of producing extrude tubes raw material front end.
C, external upset (EU) part: extruding pin reach increases die hole and gap between the extruding pin, owing to the internal diameter of this part tubing raw material reduces to make its wall thickness increase.
The invention has the beneficial effects as follows: use this method to produce and become the section seamless tubular goods, realize an extrusion modling, guarantee product materials microstructure uniformity in the longitudinal direction, product quality is greatly improved, simplify production technology, reduced production cost.
Description of drawings
Fig. 1 is that production of the present invention becomes section seamless Al-alloy pipe material profile;
Fig. 2 is profile during reinforcement in the present invention produces;
Fig. 3 is the present invention's profile when producing the normal size part;
Fig. 4 is the present invention's profile when producing the external upset (EU) part;
Fig. 5 is that the present invention produces external upset (EU) and partly reaches profile when returning to the normal size part after the specific length;
Fig. 6 is that reinforcement pushed wall thickness dimension profile just often after reaching specific length in the present invention produced.
The specific embodiment
Embodiment 1
Below in conjunction with accompanying drawing the present invention is described further:
As shown in the figure, the 1st, tubing raw material, the 2nd, product, the 3rd, extruding pin, the 4th, mould.
Extruder is by movably pushing 3 pairs of tubing raw material 1 extrusion moldings of pin, and the working face that extruding becomes the extruding pin 3 of section seamless tubular goods is divided into three parts, respectively the interior reinforcement of corresponding product, normal size part and external upset (EU) part.The forward part that to push pin 3 during production is fixed on and just begins extruding (as Fig. 2) in the extrusion die 4.Ji Ya pipe is the inside reinforcement of front end in this state.Extruding pin 3 moves ahead, because the gap between mould 4 holes and the extruding pin 3 reduces, and raw material 1 tube wall attenuation, the normal size part (as Fig. 3) of extruding pipe front end.Extruding pin 3 reach (as Fig. 4) mould 4 holes increase with gap between the extruding pin, owing to the internal diameter of this part tubing raw material 1 reduces to make its wall thickness increase.Extrusion process is proceeded under the motionless situation of extruding pin 3, makes the metal of tubing raw material 1 walk around outer extruding pin 3 heads of extrusion die 4, can make the internal diameter of tubing raw material 1 return to normal size and its external diameter is increased like this, thereby realize external upset (EU).Extruding pin 3 retreated (as Fig. 5) after the tube exterior thickening reached specific length, a part of tubing raw material 1 in the normal back of extruding wall thickness dimension.Extruding pin 3 retreats into its constriction (the top part of syringe needle) facing to the position (as Fig. 6) in mould 4 holes, produces the inside reinforcement of tubing raw material 1 rear end.
Claims (1)
1. produce the method that becomes section seamless Al-alloy pipe material for one kind, its method is:
A, interior reinforcement, the forward part that will push pin during production are fixed on and just begin extruding in the extrusion die hole, and Ji Ya tubing raw material is the inside reinforcement of front end in this state; The extruding pin retreats into its constriction facing to the position of die hole, produces the inside reinforcement of tubing raw material rear end;
B, normal size part, the extruding pin moves ahead, and makes the gap between die hole and the extruding pin reduce tube wall attenuation, the normal size part of producing extrude tubes raw material front end;
C, external upset (EU) part, extruding pin reach increase die hole and gap between the extruding pin, owing to the internal diameter of this part tubing raw material reduces to make its wall thickness increase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102317492A CN103286152A (en) | 2013-06-13 | 2013-06-13 | Method for manufacturing fracture surface changing seamless aluminium-alloy tubular product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102317492A CN103286152A (en) | 2013-06-13 | 2013-06-13 | Method for manufacturing fracture surface changing seamless aluminium-alloy tubular product |
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| CN103286152A true CN103286152A (en) | 2013-09-11 |
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| CN2013102317492A Pending CN103286152A (en) | 2013-06-13 | 2013-06-13 | Method for manufacturing fracture surface changing seamless aluminium-alloy tubular product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736765A (en) * | 2013-12-09 | 2014-04-23 | 河南启德隆实业有限公司 | Preparation method of micro-channel parallel flow aluminium tube |
| CN104624686A (en) * | 2015-03-03 | 2015-05-20 | 太原重工股份有限公司 | Method and device for extruding aluminium alloy pipe with variable cross section |
| CN107405675A (en) * | 2015-03-10 | 2017-11-28 | 新日铁住金不锈钢株式会社 | Pipe thickens forming method and thickens pipe |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771811A (en) * | 1984-04-20 | 1988-09-20 | Lor, Inc. | Heavy wall drill pipe and method of manufacture of heavy wall drill pipe |
| US5533375A (en) * | 1994-07-14 | 1996-07-09 | Industrial Technology Research Institute | Method for making seamless tubes from hollow billets |
| CN2715873Y (en) * | 2004-08-04 | 2005-08-10 | 冉茂海 | Tool and mould for seamless extrusion of aluminium pipe |
| CN201482817U (en) * | 2009-09-14 | 2010-05-26 | 上海海隆石油管材研究所 | Extrusion die for manufacturing external upset aluminium drill pipe |
| CN102296934A (en) * | 2011-07-29 | 2011-12-28 | 哈尔滨中飞新技术股份有限公司 | Aluminum alloy drill pipe and production method thereof |
| CN202555617U (en) * | 2012-02-28 | 2012-11-28 | 上海海隆石油管材研究所 | Extrusion die for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections |
| CN102921754A (en) * | 2012-11-14 | 2013-02-13 | 广东伟业铝厂有限公司 | Producing method of aluminum alloy seamless stage variable section pipe and preparation device |
-
2013
- 2013-06-13 CN CN2013102317492A patent/CN103286152A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771811A (en) * | 1984-04-20 | 1988-09-20 | Lor, Inc. | Heavy wall drill pipe and method of manufacture of heavy wall drill pipe |
| US5533375A (en) * | 1994-07-14 | 1996-07-09 | Industrial Technology Research Institute | Method for making seamless tubes from hollow billets |
| CN2715873Y (en) * | 2004-08-04 | 2005-08-10 | 冉茂海 | Tool and mould for seamless extrusion of aluminium pipe |
| CN201482817U (en) * | 2009-09-14 | 2010-05-26 | 上海海隆石油管材研究所 | Extrusion die for manufacturing external upset aluminium drill pipe |
| CN102296934A (en) * | 2011-07-29 | 2011-12-28 | 哈尔滨中飞新技术股份有限公司 | Aluminum alloy drill pipe and production method thereof |
| CN202555617U (en) * | 2012-02-28 | 2012-11-28 | 上海海隆石油管材研究所 | Extrusion die for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections |
| CN102921754A (en) * | 2012-11-14 | 2013-02-13 | 广东伟业铝厂有限公司 | Producing method of aluminum alloy seamless stage variable section pipe and preparation device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736765A (en) * | 2013-12-09 | 2014-04-23 | 河南启德隆实业有限公司 | Preparation method of micro-channel parallel flow aluminium tube |
| CN103736765B (en) * | 2013-12-09 | 2016-01-20 | 河南启德隆实业有限公司 | A kind of manufacture craft of micro-channel parallel flow aluminum pipe |
| CN104624686A (en) * | 2015-03-03 | 2015-05-20 | 太原重工股份有限公司 | Method and device for extruding aluminium alloy pipe with variable cross section |
| CN107405675A (en) * | 2015-03-10 | 2017-11-28 | 新日铁住金不锈钢株式会社 | Pipe thickens forming method and thickens pipe |
| CN107405675B (en) * | 2015-03-10 | 2019-08-06 | 新日铁住金不锈钢株式会社 | Pipe thickens forming method and thickens pipe |
| 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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Application publication date: 20130911 |