CN1060615A - Multiple way union mould extrusion forming technology and mould - Google Patents
Multiple way union mould extrusion forming technology and mould Download PDFInfo
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- CN1060615A CN1060615A CN 90108312 CN90108312A CN1060615A CN 1060615 A CN1060615 A CN 1060615A CN 90108312 CN90108312 CN 90108312 CN 90108312 A CN90108312 A CN 90108312A CN 1060615 A CN1060615 A CN 1060615A
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Abstract
The invention belongs to multiple way union and become the section hollow parts and mould extrusion forming technology and mould, it adopts solid material as sealing, power transmission, shaping medium, at first will inject or pack into pretreated pipe or hollow blank after the medium fusing, then they are packed into and can divide in the die of mould, close tight die, drift is to pipe and medium pressurization.Drift is extrusion medium in extrusion tube blank, causes to form high pressure in the pipe with the crowded desired shape of expansion of pipe.It is 1～6 ° a tapering or tapering α is arranged is 2～6 ° conical central hole that mould should have α by die that can divide mould and lower end.This technological requirement equipment and mold is simple, the precision and the plasticity of blank are lower, and solid dielectric is reusable, has reduced production cost significantly.
Description
The invention belongs to multiple way union and become moulding of section hollow parts and be extruded into shape technology and mould.
Pipe-line system reach in daily life in the departments such as petrochemical industry, electric power, nuclear power, machinery use very extensive, and multiple way union and to become the section hollow parts be its indispensable parts.In the daily life, as the pipe-line system of giving water, supplying gas, its interior pressure is little, and strength character requires low, and therefore employing is cast, welding method is produced these parts just is enough to meet the demands.And some specific (special) requirements are arranged for the pipeline that adopts in oil, chemical industry, the electric power electric power station system, as anti-high pressure, high temperature resistant, antiseptic and rustproof etc., like this, the pipe joint that casting, welding method are produced does not just reach requirement far away, and this just requires to be improved on material and processing method.Multinomial die forging processing is the new technique for forging that develops rapidly in recent years, it combines the advantage of die forging and extruding, the limitation and the low weakness of benefit of traditional forging equipment processing have been overcome, have forging ' s block dimension precision height, quality is good, stock utilization is high, save advantages such as the energy, main is a forging to go out the complex-shaped forging that other forging method can't or be difficult to add, for example: " T ", "+" swaged forging part etc.At present, method commonly used is a pipe soft mode bulging method, promptly adopts the pressure of liquid, rubber or gas to replace rigidity punch or die, hollow object or tubular blank is expanded outwardly, the protruding curved surface that expansion is required.What domestic application was more is rubber bulging, and especially Japanese abroad hydraulic expanding-forming then accounts for sizable ratio.
Though soft mode bulging method has many advantages, but still comes with some shortcomings:
1, for low-intensity, high-ductility material, the forging that soft mode bulging method is produced must increase towards the auxilliary operation that adds of arm bottom; Then need increase punching one overturning process to some high-strength material.
2, the deformation characteristics of soft mode bulging mainly is the stretching that material is subjected to tangential and generatrix direction, and the deformation extent of its bulging is subjected to the restriction of material extension limit.
3, along with the increase of deformation extent, the increase of interior pressure, the rubber bulging method will be consumed rubber in a large number, and the dielectric leakage of hydraulic expanding-forming method also will increase the weight of.Therefore, the precision of the equipment of requirement, mould, sealing are all higher.The raising of cost makes the application of soft mode bulging method be subjected to certain restriction.
The present invention have purpose to be to provide a new multiple way union and become the forming technology of section hollow parts and mould in this processing technology, adopt solid material to replace liquid, rubber as sealing, power transmission shaping medium, thereby reduce production costs, make the quality of product, the utilization rate of material that raising significantly all be arranged.
The moulding of multiple way union provided by the invention and change section hollow parts is extruded into shape technology and is: adopt solid material as sealing, power transmission shaping medium, inject or pack into pretreated pipe or hollow blank after at first medium being dissolved, then they are packed into and can divide in the die of mould, close tight die, drift is to pipe and medium pressurization.Drift is extrusion medium in extrusion tube blank, causes to form high pressure in the pipe with the crowded desired shape of expansion of pipe.Drift continues pressurization, makes medium connect die arm place blade shape with enough pressure and washes away the arm bottom.Drip molding is taken out die heat and dissolve medium, can obtain needed finished parts.The quantity of filling medium will be determined according to the shape and the deflection of processing parts.The medium of filling can be a kind of, also can two kinds use simultaneously.Forming process can also can be carried out in high temperature in room temperature.
Multiple way union provided by the invention and change section hollow parts plastic extrusion forming mould mainly are made up of die that can divide mould and drift, and it is 1～6 ° a tapering or tapering α is arranged is 2～6 ° conical central hole that should there be α the drift bottom.
The solid dielectric that adopts by the present invention is:
1, the solid dielectric of selecting for use below 40 ℃ in room temperature is:
A. contain Bi54-58%, Pb16-18%, Sn18-20%, the alloy material of Hg9-12%.
B. contain Bi42-48%, Pb20-24%, Sn7-10%, Cd4-6%, the alloy material of In17-22%.
C. contain Bi48-52%, Pb20-24%, Sn10-13%, the alloy material of In18-22%.
D. contain Bi49-52%, Pb25-27%, Sn11-14%, Cd9-12%, alloy material.
E. contain Bi50-53%, Pb30-40%, Sn0-16%, Cd0-8.2%, alloy material.
F. fusing point is 45-70 ℃ industrial paraffin goods.
G. fusing point is 100-140 ℃ nitrite and nitrate goods.
2, being higher than the solid dielectric that room temperature selects for use is:
A. fusing point is 435～960 ℃ chlorate and goods thereof.
B. crystalline melting point is 300～1000 ℃ B
2O
2-PbO-ZnO is glass and B
2O
2-PbO-Tl
2O is a glass.
By can directly pouring into a mould after the fusing of the above-mentioned medium of the present invention among tubulose or the hollow blank, also can make certain shape and pack in tubulose or the hollow blank as the power transmission shaping medium with the method for cast extruded or powder pressing.The solid dielectric of filling can be a kind of, also can be two kinds and use simultaneously.To the part of the same metal material that is shaped, can select for use the higher solid dielectric of strength degree as sealing the end that the power transmission medium is arranged at drift, select for use the lower solid dielectric of strength degree to be arranged at the middle part of tubulose or hollow blank as the power transmission shaping medium.In order to regulate the size that control blank inwall bears pressure medium, in the medium of blank, plug can also be set, to reduce plastic force, energy efficient.
Can be different by the present invention according to the quantity of the size of tubulose or hollow blank swell increment and geometric characteristic filling medium, the part that swell increment is big, the quantity of filling medium is more, makes blank end and drift shoulder that external series gap be arranged.The part that swell increment is less.The medium of filling is less, and there is internal clearance the end of nose of punch and interior filling medium.To the big part of a side swell increment, the both ends of the opposite side tubular blank of correspondence are cut groove, for the big part of four-way both sides swell increment, then the inward at both ends of tubular blank is cut the groove of symmetry, the height of groove will be determined by length, wall thickness, axial compression amount and the swell increment of tubular blank.
Select for use the higher solid dielectric of strength degree as sealing the upper and lower end parts that the power transmission medium places the blank of close drift by the present invention, select for use the lower solid dielectric of strength degree to place the blank middle part as the power transmission shaping medium.What the part forming limit was big should select the higher solid dielectric of strength degree for use, and the part forming limit is little selects the lower solid dielectric of strength degree for use.
The strength degree of the solid dielectric of selecting for use by the higher form metal of strength degree of the present invention is also higher relatively, otherwise, select the lower solid dielectric of strength degree for use.The metal material that plasticity is lower is selected the higher relatively solid dielectric of strength degree for use, and the higher metal material of plasticity is selected the relatively low solid dielectric of strength degree for use.
Should there be the tapering of α=1～6 ° the drift lower end of exerting pressure by the present invention, or a tapering is arranged is the conical central hole of α=2～6 °.
In first being processed, the outer surface of tubulose and hollow blank will be lubricated processing, to reduce the outer surface coefficient of friction by the present invention.Its inwall also will carry out measures such as pickling, alkali cleaning and water cleaning, to increase the roughness of inner surface.
Drawings and Examples:
Fig. 1～3 are threeway, four-way and the cutaway view that becomes the section hollow parts.
Fig. 4～6 are for moulding the operation principle that is extruded into shape technology.
Fig. 7～8 are the tubular blank cutaway view of two kinds of media of filling.
Fig. 9～10 are for being added with the tubular blank cutaway view of plug in the middle of two kinds of fillings and a kind of medium.
Figure 11～12 are the drift cutaway view.
Figure 13 has the tubular blank cutaway view of external series gap for drift shoulder and blank end.
Figure 14 has the tubular blank cutaway view of internal clearance for nose of punch and medium end.
Figure 15 cuts the tubular blank cutaway view of symmetrical groove for both ends.
Figure 16 cuts the tubular blank cutaway view of a side slope mouth for both ends.
In Fig. 4, (1) is drift, and (2) are dies, and (3) are tubular blank, and (4) are solid dielectric, and (5) are arm place push rod.(6) are arm in Fig. 5.(7) arm bottom in Fig. 6 for having washed open.
Be example explanation the present invention with the processing tee pipe coupling below, this is the only specific embodiment of the present invention (seeing Fig. 4-6).
The solid dielectric that this example adopts is to contain Bi42-48%, Pb16-18%, Sn18-20%, the alloy material of Hg9-12%.It is that 10 millimeters, cone angle are 3 ° conical central hole (seeing Figure 11) that there is diameter phi at its middle part of the drift of exerting pressure.The preliminary treatment of tubular blank comprises:
A. the outer surface of tubular blank carries out phosphatization, saponification processing or is coated with special lubricant, to be lowered into the coefficient of friction of blank surface and die surface in the process of pouring a libation, the blank inwall needs pickling, alkali cleaning and water to clean, to increase and the coefficient of friction that contacts solid shaping power transmission medium (4).
B. the upper and lower end parts of tubular blank (3) cuts groove (do not outpour in Fig. 4～6 and see Fig. 5).The part swell increment is also beveling not of hour blank.
The solid shaping power transmission medium (4) of fusing is cast in the tubular blank (3), the medium of filling is less, drift (1) end with in fill solid shaping power transmission medium (4) end internal clearance (can also inject two kinds of different solid shaping power transmission media for example Fig. 7, Fig. 8 in the tubular blank, plug for example Fig. 9, Figure 10 can also be set in medium) arranged.The die (2) that tubular blank (3) is packed into and can be divided mould then, contain tight die (2), last low punch (1) pressurizes to pipe and medium with certain speed, the high pressure that forms in the pipe (3) squeezes pipe arm (6) (see figure 5) of expansion threeway, drift (1) continues pipe (3) and solid power transmission shaping medium (4) pressurization, and medium (4) washes away arm bottom (seeing Fig. 6,7) with enough pressure by die (2) arm place blade shape.Open die (2), melt away the medium (4) in the shaping tee pipe coupling, can obtain the pipe joint that time processing is shaped.
The present invention compares with existing technology has following advantage:
Press molding of drift just can obtain satisfactory length of tube, has omitted the punching overturning process. Many siphunculus (comprising threeway, four-way) joint of manufacturing for metals such as wall thickness is thinner with respect to the aperture or plasticity is higher, intensity is lower copper, aluminium, mild steel and become the section hollow element can once be gone out arm hole shape and sidewall hole shape when being extruded into shape moulding.
This processing technology can also be according to various different metal material hot forming characteristics, the solid shaping power transmission medium that selection is higher than room temperature carries out hot forming to above-mentioned part, forming temperature is 200 ℃-900 ℃, can further improve so once to mould and be extruded into the shape coefficient and reduce plastic force, hot forming is that the technology such as soft mode bulging is difficult to realize.
For the part of some shaping continuation processing, can utilize the rear interior filling medium conduct lining that is shaped, process so that carry out follow-up operation. Because the solid dielectric self seal forms necessary shaping high pressure, therefore compare with the hydraulic expanding-forming method again, equipment, the mould of use are simple, require semifinished product precision, plasticity also lower, and the quality of product is controlled easily, yield rate height, production safety. In addition, because the solid dielectric that this processing method is used can be reused, the price comparison of some solid dielectric is low, consumes again in technical process and lacks, and has therefore reduced the production cost of part, and its economic benefit is fairly obvious.
Claims (9)
1, moulding of a kind of multiple way union and change section hollow parts is extruded into shape technology, it is characterized in that: adopt solid material as shaping power transmission medium, at first will inject or pack into pretreated pipe or hollow blank after the solid dielectric heat fused, then blank is packed into and can divide in the die of mould, close tight die, drift begins to pipe and medium pressurization, form high pressure in the pipe with the crowded shape that expansion requires of blank to making, drift continues pressurization makes medium wash away the arm bottom with enough pressure, drip molding is taken out the fusing medium of heating, can obtain high-quality drip molding, the quantity of filling medium will be determined according to the deformation characteristics of processing parts, the medium of filling can be a kind of, also can be two kinds, and forming process can also can be carried out in high temperature in room temperature.
2, according to claim 1 moulding is extruded into shape technology, it is characterized in that:
1) the solid shaping medium of selecting for use below 40 ℃ in room temperature is:
A. contain Bi54-58%, Pb16-18%, Sn18-20%, the alloy material of Hg9-12%.
B. contain Bi42-48%, Pb20-24%, Sn7-10%, Cd4-6%, the alloy material of In17-22%.
C. contain Bi48-52%, Pb20-24%, Sn10-13%, the alloy material of In18-22%.
D. contain Bi49-52%, Pb25-27%, Sn11-14%, Cd9-12%, alloy material.
E. contain Bi50-53%, Pb30-40%, Sn0-16%, Cd0-8.2%, alloy material.
F. fusing point is 45-70 ℃ industrial paraffin goods (viscoplastic material).
G. fusing point is 100-140 ℃ nitrite and nitrate goods.
2) being higher than the solid shaping medium that room temperature selects for use is:
A. fusing point is 435～960 ℃ chlorate and goods thereof.
B. crystalline melting point is 300～100 ℃ B
2O
2-PbO-ZnO is glass and B
2O
2-PbO-Tl
2O is a glass.
3, according to claim 1 moulding is extruded into shape technology, it is characterized in that: can directly pour into a mould in the tubular blank after the solid dielectric fusing, also can pack in the tubular blank as the power transmission medium with the shape that the method for cast extruded or powder pressing is made regulation.
4, according to claim 1 moulding is extruded into shape technology, it is characterized in that: in the medium of pipe or hollow blank plug is set.
5, according to claim 1 moulding is extruded into shape technology, it is characterized in that: the part big to swell increment, and the quantity of filling medium is more, make blank end and drift shoulder that external series gap be arranged, the part that swell increment is less, the medium of filling is less, makes the end of nose of punch and interior filling medium that internal clearance be arranged.
6, according to claim 1 moulding is extruded into shape technology, it is characterized in that: the outer surface of blank will be lubricated processing, and its inner surface carries out pickling, alkali cleaning and water and cleans.
7, according to claim 1 moulding is extruded into shape technology, it is characterized in that: select for use the higher solid dielectric of strength degree to pass medium as sealing and place nose of punch, select for use the lower solid dielectric of strength degree to place the blank middle part as the power transmission shaping medium.
8, according to claim 1 moulding is extruded into shape technology, it is characterized in that: the big part of a side swell increment, the two ends of the opposite side tubular blank of correspondence are cut groove, and the big part of two side swell incremenies then cuts the inward at both ends of tubular blank the groove of symmetry.
9, a kind of plastic extrusion forming mould that is used for multiple way union and becomes the section hollow parts is characterized in that it is 1～6 ° a tapering or tapering α is arranged is 2～6 ° conical central hole that should there be α the drift bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108312 CN1025010C (en) | 1990-10-20 | 1990-10-20 | Multichannel pipe connection plastics forming technology and mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108312 CN1025010C (en) | 1990-10-20 | 1990-10-20 | Multichannel pipe connection plastics forming technology and mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1060615A true CN1060615A (en) | 1992-04-29 |
| CN1025010C CN1025010C (en) | 1994-06-15 |
Family
ID=4880939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90108312 Expired - Fee Related CN1025010C (en) | 1990-10-20 | 1990-10-20 | Multichannel pipe connection plastics forming technology and mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025010C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947572A (en) * | 2010-09-14 | 2011-01-19 | 江阴中南重工股份有限公司 | Tile type production method for tee pipe fitting |
| CN101972791A (en) * | 2010-10-18 | 2011-02-16 | 宁波市华涛不锈钢管材有限公司 | Thin-wall stainless steel tee tube cold pressing molding device and molding method thereof |
| CN102699657A (en) * | 2012-06-19 | 2012-10-03 | 浙江嘉兴亚达不锈钢制造有限公司 | Multi-way pipe connecting method |
| CN102756033A (en) * | 2011-04-27 | 2012-10-31 | 上海汇众汽车制造有限公司 | Multi-layer pipe quick liquid-filled forming method and system |
| CN102773306A (en) * | 2012-08-09 | 2012-11-14 | 河南源泉电器有限公司 | Packing medium of extruded tube piece and manufacturing process of extruded tube piece |
| CN103143622A (en) * | 2013-02-26 | 2013-06-12 | 武汉理工大学 | Medium forming method for improving forming property of thick-wall metal pipe fittings |
| CN103447370A (en) * | 2013-09-11 | 2013-12-18 | 河南源泉电器有限公司 | Packing medium for extruding branch tube and manufacturing technology of branch tube |
| CN103878206A (en) * | 2013-04-28 | 2014-06-25 | 泰州市汇恒制冷设备有限公司 | Preparation method of extrusion pipe |
| CN104438409A (en) * | 2015-01-07 | 2015-03-25 | 营口昌信管业制造有限公司 | Pipe fitting cold extruding forming machine and forming technology thereof |
| CN106734341A (en) * | 2016-12-14 | 2017-05-31 | 中山市众泰机械设备有限公司 | The new filler and its processing technology of a kind of extruded piping branch tee part |
| CN106903485A (en) * | 2017-03-03 | 2017-06-30 | 广州市鼎大化工有限公司 | The powder filler medium and moulding process of the logical part of pipe |
| CN109108101A (en) * | 2018-08-23 | 2019-01-01 | 重庆三峡学院 | A kind of multidirectional extruding near-net-shape method of heavy wall four-way pipe |
| CN109127850A (en) * | 2018-10-22 | 2019-01-04 | 安徽工业大学 | Profiled-cross-section thin-wall pipe solid-liquid double-phase medium inside high-pressure forming method |
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| CN103433325B (en) * | 2013-09-11 | 2015-12-09 | 赵肖运 | A kind ofly lead to the filled media of part and the manufacture craft of the logical part of pipe for extruded tube |
| CN103433324A (en) * | 2013-09-11 | 2013-12-11 | 河南源泉电器有限公司 | Filling medium for extruding penetration piece and manufacturing technique of penetration piece |
-
1990
- 1990-10-20 CN CN 90108312 patent/CN1025010C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947572A (en) * | 2010-09-14 | 2011-01-19 | 江阴中南重工股份有限公司 | Tile type production method for tee pipe fitting |
| CN101972791B (en) * | 2010-10-18 | 2014-07-16 | 宁波市华涛不锈钢管材有限公司 | Thin-wall stainless steel tee tube cold pressing molding device and molding method thereof |
| CN101972791A (en) * | 2010-10-18 | 2011-02-16 | 宁波市华涛不锈钢管材有限公司 | Thin-wall stainless steel tee tube cold pressing molding device and molding method thereof |
| CN102756033A (en) * | 2011-04-27 | 2012-10-31 | 上海汇众汽车制造有限公司 | Multi-layer pipe quick liquid-filled forming method and system |
| CN102756033B (en) * | 2011-04-27 | 2015-09-30 | 上海汇众汽车制造有限公司 | The quick liquid-filling shaping method and system of multilayer pipe |
| CN102699657A (en) * | 2012-06-19 | 2012-10-03 | 浙江嘉兴亚达不锈钢制造有限公司 | Multi-way pipe connecting method |
| CN102773306A (en) * | 2012-08-09 | 2012-11-14 | 河南源泉电器有限公司 | Packing medium of extruded tube piece and manufacturing process of extruded tube piece |
| CN102773306B (en) * | 2012-08-09 | 2017-07-18 | 赵肖运 | Extruded tube leads to the manufacture craft of the logical part of filled media and its extruded tube of part |
| CN103143622A (en) * | 2013-02-26 | 2013-06-12 | 武汉理工大学 | Medium forming method for improving forming property of thick-wall metal pipe fittings |
| CN103143622B (en) * | 2013-02-26 | 2016-03-09 | 武汉理工大学 | A kind of medium manufacturing process for improving thick-walled metal pipe fitting forming property |
| CN103878206A (en) * | 2013-04-28 | 2014-06-25 | 泰州市汇恒制冷设备有限公司 | Preparation method of extrusion pipe |
| CN103447370B (en) * | 2013-09-11 | 2016-08-31 | 赵肖运 | A kind of filled media and manufacture craft of the logical part of pipe leading to part for extruded tube |
| CN103447370A (en) * | 2013-09-11 | 2013-12-18 | 河南源泉电器有限公司 | Packing medium for extruding branch tube and manufacturing technology of branch tube |
| CN104438409A (en) * | 2015-01-07 | 2015-03-25 | 营口昌信管业制造有限公司 | Pipe fitting cold extruding forming machine and forming technology thereof |
| CN104438409B (en) * | 2015-01-07 | 2017-02-22 | 营口昌信管业制造有限公司 | Pipe fitting cold extruding forming machine and forming technology thereof |
| CN106734341A (en) * | 2016-12-14 | 2017-05-31 | 中山市众泰机械设备有限公司 | The new filler and its processing technology of a kind of extruded piping branch tee part |
| CN106734341B (en) * | 2016-12-14 | 2018-10-30 | 中山市众泰机械设备有限公司 | A kind of filler and its processing technology of extruded piping branch tee part |
| CN106903485A (en) * | 2017-03-03 | 2017-06-30 | 广州市鼎大化工有限公司 | The powder filler medium and moulding process of the logical part of pipe |
| CN109108101A (en) * | 2018-08-23 | 2019-01-01 | 重庆三峡学院 | A kind of multidirectional extruding near-net-shape method of heavy wall four-way pipe |
| CN109127850A (en) * | 2018-10-22 | 2019-01-04 | 安徽工业大学 | Profiled-cross-section thin-wall pipe solid-liquid double-phase medium inside high-pressure forming method |
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| Publication number | Publication date |
|---|---|
| CN1025010C (en) | 1994-06-15 |
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