CN108655285A - A kind of mold and draw technique applied to aluminum pipe draw technique - Google Patents
A kind of mold and draw technique applied to aluminum pipe draw technique Download PDFInfo
- Publication number
- CN108655285A CN108655285A CN201810564682.7A CN201810564682A CN108655285A CN 108655285 A CN108655285 A CN 108655285A CN 201810564682 A CN201810564682 A CN 201810564682A CN 108655285 A CN108655285 A CN 108655285A
- Authority
- CN
- China
- Prior art keywords
- tubing
- draw
- mold
- aluminum pipe
- external mold
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 35
- 208000009782 Plagiocephaly Diseases 0.000 claims description 10
- 238000007127 saponification reaction Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000005237 degreasing agent Methods 0.000 claims description 4
- 239000013527 degreasing agent Substances 0.000 claims description 4
- 210000000981 epithelium Anatomy 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003466 welding Methods 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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
-
- 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
- B21D37/10—Die sets; Pillar guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention discloses a kind of mold applied to aluminum pipe draw technique, is related to draw technical field, including external mold and mandrel, and the external mold is equipped with the endoporus of tubing ramped shaped, is provided with more than one node on the mandrel, each size of node differs.Invention additionally discloses a kind of draw techniques.The mold for being applied to aluminum pipe draw technique using this carries out the draw to aluminum pipe, and the aluminum pipe after processing has the advantages that surfaces externally and internally is smooth, crystal structure is compact, thickness is accurate and intensity is big.
Description
Technical field
The present invention relates to draw technical fields, and in particular to a kind of mold and draw work applied to aluminum pipe draw technique
Skill.
Background technology
The draw is exactly the moulding process for reducing pipe end diameter.All it is by four moulds of correspondingly-sized on market today
Tool is put into machine for shrinking, is rotated four sheet molds by board, tubing is slowly advanced to mould inside, in the rotation of four sheet molds
Transfer to directly makes tubing achieve the effect that the draw with lower.
The prior art of the draw directly makes tubing one end diameter become smaller using the rotation of four sheet molds, can cause the draw in tubing
Position crystal disorderly fall, keep tubing material crystal coarse, point is serious outside tubing, and inside corrugation directly influences and is welded into vehicle
The effect of frame and the intensity being manufactured into after other products, follow-up tubing can also cause the rupture of tubing in the welding process, significantly
Affect the follow-up safety made and tubing is made to product of tubing.In addition, if tubing both ends bore differs too big, meeting
Cause ultra-thin pipe that can not make, such as the tubing that bore is 0.8mm-1.1mm, because of too thin four sheet molds for being put into rotation of tubing
In, then when tubing is pushed ahead can lead to ultra-thin section of coiled strip of tubing and can not make.As such mode of social progress adds
Work cannot increasingly meet the diversified demand of client.
Invention content
One of present invention purpose is to provide the mold applied to aluminum pipe draw technique, using the mold to aluminum pipe into
The row draw, the aluminum pipe after processing have the advantages that surfaces externally and internally is smooth, crystal structure is compact, thickness is accurate and intensity is big.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of mold applied to aluminum pipe draw technique, including external mold and mandrel, the external mold are equipped with tubing ramped shaped
Endoporus is provided with more than one node on the mandrel, and each size of node differs.
Preferably, the smaller one end of the endoporus area of the external mold is equipped with the rounded corner for preventing tubing from pulling.
Preferably, the larger one end of the endoporus area of the external mold is in horn-like setting, the endoporus of the external mold is in loudspeaker
One end of shape is used to be oriented to for tubing.
Preferably, minute surface nitrogen treatment is passed through on the endoporus of the external mold and the surface of mandrel.Improve the wearability of mold
Energy and fatigue performance.
It is a further object to provide a kind of draw techniques.
A kind of draw technique, using the above-mentioned mold applied to aluminum pipe draw technique to the tube extrusion draw.
Preferably, including the following steps：
1) plagiocephaly of broken head phenomenon occurs when the draw is handled out for preventing tubing from promoting in tubing front end；
2) tubing is subjected to saponification process, tube surfaces is made to lubricate and be formed one layer of epithelium；
3) mandrel is inserted into inside tubing to the endoporus for then passing through external mold, makes the tubing draw using the extruding of external mold and mandrel
Reach the size of needs.
Tubing breaks head when plagiocephaly in step 1) can prevent mandrel from pushing ahead, and causing tubing to be stuck in mold can not
Pipe is taken out, this construction increases the bearing strengths of tubing small-caliber end, prevent the tubing draw from breaking head phenomenon and occur, operation is more pacified
Entirely.It can prevent tubing from being pulled during the draw tubing saponification process in step 2).The pipe squeezed out in step 3)
Material density bigger, progress higher, intensity are stronger.
Preferably, the saponification process in the step 2) includes the following steps：
2.1) tubing is put into the room temperature sink with aluminium degreasing agent into immersion 10~15 minutes；
2.2) tubing is put into the Rinsing Area of first room temperature and is impregnated 0.5~2 minute；
2.3) tubing is put into the Rinsing Area of second room temperature and is impregnated 0.5~2 minute；
2.4) tubing is put into and is impregnated 2~4 minutes in 80~90 degree of sink with film agent and temperature；
2.5) tubing is put into the Rinsing Area of third room temperature and is impregnated 0.5~2 minute；
2.6) tubing is put into the Rinsing Area of the 4th room temperature and is impregnated 0.5~2 minute；
2.7) tubing is put into and is impregnated 3~7 minutes in 80~90 degree of sink with lubricant and temperature.
If preferably, tubing is fabricated to the tubing that both ends diameter difference is 35mm or more, need to carry out more than primary
The draw.To ensure the thickness and quality of tubing.
Preferably, the tubing after the draw can extract thickness adjustment own wt out.Keep the thickness distribution of tubing uniform.
Preferably, thickness two of the tubing before the most thin thickness after adjusting thickness cannot be less than adjustment thickness
/ mono-.Using the above structure, prevent tubing from causing to be broken more than the draw limit.
The beneficial effects of the invention are as follows：
1. the present invention is using external mold and mandrel to aluminum pipe squeeze and pull is to achieve the effect that the draw, since aluminium has
There is good ductility, the crystal structure of aluminium will not be destroyed during the draw；
2. smooth by the product surfaces externally and internally that draw technique of the present invention is made, crystal structure is compact, and thickness is accurate,
Its intensity has and is obviously improved compared with the product strength that traditional draw technology is made.
Description of the drawings
Fig. 1 is the external mold schematic diagram for the mold for being applied to aluminum pipe draw technique in the present invention.
Fig. 2 is the mandrel schematic diagram for the mold for being applied to aluminum pipe draw technique in the present invention.
Fig. 3 is the schematic diagram of the aluminum pipe draw in the embodiment of the present invention 1.
Fig. 4 is the schematic diagram of the aluminum pipe draw in the embodiment of the present invention 2.
Fig. 5 is the plagiocephaly schematic diagram of the aluminum pipe draw in the present invention.
Reference numeral：1, external mold；2, mandrel；3, endoporus；4, rounded corner；5, plagiocephaly；6, plagiocephaly small-caliber end.
Specific implementation mode
Embodiment 1
The present embodiment handles the tubing draw：The a diameter of 50mm in one end, a diameter of 30mm of the other end, both ends diameter difference
20mm。
As shown in Figs. 1-2, a kind of mold applied to aluminum pipe draw technique, including external mold 1 and mandrel 2, the external mold 1 are set
There is the endoporus 3 of tubing ramped shaped, is arranged on the mandrel 2 there are three node, each size of node differs.The external mold 1
The smaller one end of 3 area of endoporus be equipped with the rounded corner 4 for preventing tubing from pulling, 3 area of endoporus of the external mold 1 is larger
One end is in horn-like setting, and the endoporus 3 of the external mold 1 is used to be oriented to for tubing in horn-like one end, the endoporus of the external mold 1
3 and mandrel 2 surface pass through minute surface nitrogen treatment.
As shown in Figure 3 and Figure 5, a kind of draw technique, using the above-mentioned mold applied to aluminum pipe draw technique to tubing
The draw is squeezed, is included the following steps：
1) plagiocephaly 5 of broken head phenomenon occurs when the draw is handled out for preventing tubing from promoting in tubing front end, the plagiocephaly is small
6 length of bore end is 20mm.
2) tubing is subjected to saponification process, so that tube surfaces is lubricated and be formed one layer of epithelium, saponification process includes following step
Suddenly：
2.1) tubing is put into the room temperature sink with aluminium degreasing agent into immersion 12 minutes；
2.2) tubing is put into the Rinsing Area of first room temperature and is impregnated 1 minute；
2.3) tubing is put into the Rinsing Area of second room temperature and is impregnated 1 minute；
2.4) tubing is put into and is impregnated 3 minutes in 85 degree of sink with film agent and temperature；
2.5) tubing is put into the Rinsing Area of third room temperature and is impregnated 1 minute；
2.6) tubing is put into the Rinsing Area of the 4th room temperature and is impregnated 1 minute；
2.7) tubing is put into and is impregnated 5 minutes in 85 degree of sink with lubricant and temperature.
3) mandrel 2 is inserted into inside tubing to the endoporus 3 for then passing through external mold 1, the extruding using external mold 1 and mandrel 2 makes pipe
The material draw reaches the size of needs.
Embodiment 2
The present embodiment handles the tubing draw：The a diameter of 86mm in one end, a diameter of 46.9mm of the other end, both ends diameter phase
Poor 39.1mm.
As depicted in figs. 1 and 2, a kind of mold applied to aluminum pipe draw technique, including external mold 1 and mandrel 2, the external mold
1 is equipped with the endoporus 3 of tubing ramped shaped, is arranged on the mandrel 2 there are three node, each size of node differs.It is described outer
The smaller one end of 3 area of endoporus of mould 1 is equipped with the rounded corner 4 for preventing tubing from pulling, 3 area of endoporus of the external mold 1 compared with
Big one end is in horn-like setting, and the endoporus 3 of the external mold 1 is used to be oriented to for tubing in horn-like one end, the external mold 1
Minute surface nitrogen treatment is passed through on the surface of endoporus 3 and mandrel 2.
Since the present embodiment tubing both ends diameter to be made differs 35mm or more, so to carry out the multiple draw, this reality
Apply example mold be equipped with it is multiple, the size of each mold is all different, each draw use different molds.
As shown in Figure 4 and Figure 5, a kind of draw technique, using the above-mentioned mold applied to aluminum pipe draw technique to tubing
The draw is squeezed, is included the following steps：
1) plagiocephaly 5 of broken head phenomenon occurs when the draw is handled out for preventing tubing from promoting in tubing front end, the plagiocephaly is small
6 length of bore end is 20mm.
2) tubing is subjected to saponification process, so that tube surfaces is lubricated and be formed one layer of epithelium, saponification process includes following step
Suddenly：
2.1) tubing is put into the room temperature sink with aluminium degreasing agent into immersion 12 minutes；
2.2) tubing is put into the Rinsing Area of first room temperature and is impregnated 1 minute；
2.3) tubing is put into the Rinsing Area of second room temperature and is impregnated 1 minute；
2.4) tubing is put into and is impregnated 3 minutes in 85 degree of sink with film agent and temperature；
2.5) tubing is put into the Rinsing Area of third room temperature and is impregnated 1 minute；
2.6) tubing is put into the Rinsing Area of the 4th room temperature and is impregnated 1 minute；
2.7) tubing is put into and is impregnated 5 minutes in 85 degree of sink with lubricant and temperature.
3) mandrel 2 is inserted into inside tubing to the endoporus 3 for then passing through external mold 1, the extruding using external mold 1 and mandrel 2 makes pipe
The material draw reaches the size of needs, first by the tubing draw to a diameter of 70mm, then by the tubing draw to a diameter of 50mm, finally will
The tubing draw is to a diameter of 46.9mm.Mandrel 2 after the tubing draw by external mold 1 and with different size node squeezes aluminum pipe
To make aluminum pipe form different thickness distributions, the effect of adjustment thickness is played, ensure that the quality of pipe fitting.In addition,
Thickness half of the tubing before the most thin thickness after adjusting thickness cannot be less than adjustment thickness, prevents tubing super
It crosses the draw limit and causes to be broken.
Claims (10)
1. a kind of mold applied to aluminum pipe draw technique, which is characterized in that including external mold and mandrel, the external mold is equipped with tubing
The endoporus of ramped shaped is provided with more than one node on the mandrel, and each size of node differs.
2. the mold according to claim 1 applied to aluminum pipe draw technique, which is characterized in that the inner hole surface of the external mold
The smaller one end of product is equipped with the rounded corner for preventing tubing from pulling.
3. the mold according to claim 1 applied to aluminum pipe draw technique, which is characterized in that the inner hole surface of the external mold
The larger one end of product is in horn-like setting, and the endoporus of the external mold is used to be oriented to for tubing in horn-like one end.
4. the mold according to claim 1 applied to aluminum pipe draw technique, which is characterized in that the endoporus of the external mold and
Minute surface nitrogen treatment is passed through on the surface of mandrel.
5. a kind of draw technique, which is characterized in that be applied to aluminum pipe draw work using such as claims 1 to 3 any one of them
The mold of skill is to the tube extrusion draw.
6. draw technique according to claim 5, which is characterized in that include the following steps：
1) plagiocephaly of broken head phenomenon occurs when the draw is handled out for preventing tubing from promoting in tubing front end；
2) tubing is subjected to saponification process, tube surfaces is made to lubricate and be formed one layer of epithelium；
3) mandrel is inserted into inside tubing to the endoporus for then passing through external mold, so that the tubing draw is reached using the extruding of external mold and mandrel
The size needed.
7. draw technique according to claim 6, which is characterized in that the saponification process in the step 2) includes following step
Suddenly：
2.1) tubing is put into the room temperature sink with aluminium degreasing agent into immersion 10~15 minutes；
2.2) tubing is put into the Rinsing Area of first room temperature and is impregnated 0.5~2 minute；
2.3) tubing is put into the Rinsing Area of second room temperature and is impregnated 0.5~2 minute；
2.4) tubing is put into and is impregnated 2~4 minutes in 80~90 degree of sink with film agent and temperature；
2.5) tubing is put into the Rinsing Area of third room temperature and is impregnated 0.5~2 minute；
2.6) tubing is put into the Rinsing Area of the 4th room temperature and is impregnated 0.5~2 minute；
2.7) tubing is put into and is impregnated 3~7 minutes in 80~90 degree of sink with lubricant and temperature.
8. draw technique according to claim 5, which is characterized in that if it is 35mm that tubing, which is fabricated to both ends diameter difference,
Above tubing needs to carry out the primary above draw.
9. draw technique according to claim 8, which is characterized in that the tubing after the draw can extract thickness out and adjust itself weight
Amount.
10. draw technique according to claim 9, which is characterized in that most thin thickness of the tubing after adjusting thickness
It cannot be less than the thickness half before adjustment thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564682.7A CN108655285A (en) | 2018-06-04 | 2018-06-04 | A kind of mold and draw technique applied to aluminum pipe draw technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564682.7A CN108655285A (en) | 2018-06-04 | 2018-06-04 | A kind of mold and draw technique applied to aluminum pipe draw technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108655285A true CN108655285A (en) | 2018-10-16 |
Family
ID=63774165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810564682.7A Pending CN108655285A (en) | 2018-06-04 | 2018-06-04 | A kind of mold and draw technique applied to aluminum pipe draw technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN108655285A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536053A (en) * | 1978-09-06 | 1980-03-13 | Kayaba Ind Co Ltd | Molding method of outer tube of hydraulic pressure shock absorber |
| FR2473916A1 (en) * | 1980-01-22 | 1981-07-24 | Tubes Cie Indle Cale | Cold drawing of hollow drive shaft reduced end spigots - has second spigot using bore mandrels while shaft is forced part way into drawing plates |
| CN1438080A (en) * | 2002-02-10 | 2003-08-27 | 利奇机械工业股份有限公司 | Method for producing aluminium by colol extrusion |
| CN101380646A (en) * | 2007-09-05 | 2009-03-11 | 汪俊延 | Pipes processing method |
| CN208758490U (en) * | 2018-06-04 | 2019-04-19 | 升励五金（深圳）有限公司 | A kind of mold applied to aluminum pipe draw technique |
-
2018
- 2018-06-04 CN CN201810564682.7A patent/CN108655285A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536053A (en) * | 1978-09-06 | 1980-03-13 | Kayaba Ind Co Ltd | Molding method of outer tube of hydraulic pressure shock absorber |
| FR2473916A1 (en) * | 1980-01-22 | 1981-07-24 | Tubes Cie Indle Cale | Cold drawing of hollow drive shaft reduced end spigots - has second spigot using bore mandrels while shaft is forced part way into drawing plates |
| CN1438080A (en) * | 2002-02-10 | 2003-08-27 | 利奇机械工业股份有限公司 | Method for producing aluminium by colol extrusion |
| CN101380646A (en) * | 2007-09-05 | 2009-03-11 | 汪俊延 | Pipes processing method |
| CN208758490U (en) * | 2018-06-04 | 2019-04-19 | 升励五金（深圳）有限公司 | A kind of mold applied to aluminum pipe draw technique |
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