CN109909342A - The rolling formation method and device of inductile alloy super large deflection thin-wall tube - Google Patents
The rolling formation method and device of inductile alloy super large deflection thin-wall tube Download PDFInfo
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- CN109909342A CN109909342A CN201910079834.9A CN201910079834A CN109909342A CN 109909342 A CN109909342 A CN 109909342A CN 201910079834 A CN201910079834 A CN 201910079834A CN 109909342 A CN109909342 A CN 109909342A
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 20
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Abstract
The invention discloses a kind of rolling formation methods of inductile alloy super large deflection thin-wall tube, including main shaft, limiting bracket and power device, it further include roller wave apparatus and apparatus for shaping, roller wave apparatus includes several roller wave brackets and variable diameter mandrel, roller wave bracket is equipped with roller wave mould, apparatus for shaping includes several shaping brackets, and shaping bracket is equipped with and rolls out mould, and main shaft, roller wave bracket, shaping bracket are connect with power device.The present invention is processed by the way of stepping roll-in in the pipe preform stage, not only solves the problem of traditional rolling formation hardly possible, while also solving conventional roll pressure pipe base because in the multiple waves of synchronous roll-in, at trough material can not flow into and the problem that causes transition thinned；It is processed by the way of stepping roll-in in pipe truing phase, the flow resistance of material in deformation process can be reduced, it is ensured that material can be evenly distributed the tube wall after shaping everywhere.
Description
Technical field
The present invention relates to thin-wall tube roll forming techniques fields, thin more particularly, to a kind of inductile alloy super large deflection
The rolling formation method and device of wall pipe.
Background technique
Tradition is general to the forming of alloy thin-wall pipe to be added by the way of rolling formation, internal high pressure forming or warm working
Work, but there are the following problems:
1. at normal temperature, difficulty or ease are realized big because alloy thin-wall pipe fitting material itself belongs to inductile material (such as magnesium alloy)
Deformation, processed by the way of roll-in, will lead to thin-wall pipe occur fillet corrugation problem, if processing when, thin-wall pipe
Inside lacks support, then it also occur that unstability, or even in roll-in, cracks because the transition of pipe fitting part is thinned；
2. when using interior high voltage units, although solving the problems, such as that material itself is not easy to deform, thin-wall pipe can become because big
Shape and bring the problems such as transition in tube wall somewhere is thinned, material is unevenly distributed, Wall-Thickness Difference is larger on each section tube wall.
3. being processed using warm working, device structure is complicated, and energy consumption is larger, at high cost.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of being rolled into for inductile alloy super large deflection thin-wall tube
Shape method is intended to reduce production cost by this method, solves the problems such as forming is difficult, pipe wall material is unevenly distributed, further
The required forming device of this method is provided.
The technical scheme of the invention to solve the technical problem is: inductile alloy super large deflection thin-wall tube
Rolling formation method, including following process:
Process 1: by tube blank inner wall feather plucking to be processed, increase tracheid shape properties, enhancing tube wall sticks together the ability of alloy；
Process 2: using centrifugal casting in the uniform layer overlay low-melting alloy of the processed tube blank inner wall of process 1；
Process 3: the processed outer surface of tube blank roll-in of process 2 is gone out into ripple by the way of stepping roll-in；
Process 4: being flattened the ripple on the processed pipe of process 3 by the way of stepping roll-in, forms finished product pipe fitting；
Process 5: the finished product pipe fitting that process 4 is formed is impregnated by high temperature bath, is recycled the low melting point being attached on its inner wall and is closed
Gold；
Process 6: the processed finished product pipe fitting of process 5 is cleaned using dedicated solvent.
The further preferred scheme of the present invention: the process 3 the following steps are included:
Step 1: extruding trough in pipe intermediate calender rolls；
Step 2: to pipe shaft end two sides among pipe and by preset space length, successively roll-in goes out several troughs；
It is processed using step-by-step movement, first roller goes out trough in the middle part of pipe, then successively roller goes out trough from its deformable intermediate part to shaft end two sides,
The material at pipe both ends is gradually pulled in pipe middle part deformed region, has reached pipe both ends into pipe because unfettered
Therefore the purpose (pipe from feed supplement) of portion's feed supplement solves conventional roll pressure pipe base because in the multiple waves of synchronous roll-in, material at trough
Material can not flow into and the problem that causes transition thinned.(after roller wave, wave crest is approximately equal with former pipe diameter, axial length contracting
It is short.)
The further preferred scheme of the present invention: the process 4 the following steps are included:
Step 3: the wave crest roll-in of pipe shaft end two sides is extremely concordant with trough；
Step 4: among from two side of pipe shaft end to pipe by several wave crests successively roll-in to concordant with trough.
The processing sequence of pipe reforming process is just with roller wave preform on the contrary, first first press the shaft end two sides of pipe
It is flat, then from two side of pipe shaft end to pipe among successively wave crest is flattened, greatly reduce the flowing resistance of material in deformation process
Power, it is ensured that material can be evenly distributed the tube wall after shaping everywhere.(after rolling out, pipe is configured to thin-wall pipe, and axial length increases
Add, caliber becomes smaller.)
In addition, biaxial tension cylinder can be used and stretched to pipe both ends, pipe can be effectively prevent in pipe reforming process
Base is because of pipe surface wrinkling caused by length increase.
The further preferred scheme of the present invention: the ingredient of the dedicated solvent includes sodium alkylsiliconate, sodium sulphate, six inclined phosphorus
Sour sodium, sodium sulfate of polyethenoxy ether of fatty alcohol, lauric acid amide of ethanol, water.
The rolling formation device of inductile alloy super large deflection thin-wall tube, including main shaft, limiting bracket and power device,
It further include roller wave apparatus and apparatus for shaping, the roller wave apparatus includes several roller wave brackets and variable diameter mandrel, the roller wave
Bracket is equipped with roller wave mould, and the apparatus for shaping includes several shaping brackets, and the shaping bracket is equipped with and rolls out mould, institute
Main shaft, roller wave bracket, the shaping bracket stated are connect with power device, the power device can driving spindle rotation, it is described
Power device can driven roller wave bracket and shaping bracket translate；
Pipe one end is flexibly connected with limiting bracket, and the other end is connect with main shaft, drives pipe blank rotary by main shaft, power device is driven
Dynamic roller wave bracket translation, makes roller wave mould close to pipe, and then go out trough in pipe upper roller by roller wave mould；Similarly, power device is driven
Dynamic shaping bracket translation, makes to roll out mould close to pipe, is rolled out the wave crest on pipe by rolling out mould.
Wherein, power device includes motor, hydraulic cylinder and biaxial tension cylinder.
The variable diameter mandrel includes mandrel and several support units, and several support units press preset space length housing
In mandrel, two neighboring support unit is connected by the first pull rod, and the support unit includes a supporting block and two cunnings
Block, the supporting block are set between two sliding blocks and can carry out up and down.
Pipe roller wave performing process needs housing in variable diameter mandrel, is in order to ensure can smoothly take off after pipe roller wave
Mould.
The further preferred scheme of the present invention: several roller wave spacer support frame predetermined angular circular arrays arrangement, and
Roller wave mould on two neighboring roller wave bracket is staggeredly arranged along the axial direction of main shaft.
Because the variable diameter limit of pipe material itself is limited, the spacing between two neighboring trough be should not be too large, and cause single
More than two roller wave moulds can not be set on roller wave bracket, for this purpose, being provided with the roller wave bracket of multiple circular arrays distribution, phase
Roller wave mould on adjacent two roller wave brackets is staggeredly arranged along the axial direction of main shaft, then is to eliminate phase between multiple roller wave moulds
Mutually the problem of interference.
The further preferred scheme of the present invention: several shaping spacer support frame predetermined angular circular arrays arrangement, and
Roller wave mould on two neighboring roller wave bracket is staggeredly arranged along the axial direction of main shaft.
This technical solution and the principle of above-mentioned several roller wave bracket settings are similar, in order to eliminate multiple roll out between mould mutually
The problem of interference.
The further preferred scheme of the present invention: being equipped with mobilizable second pull rod on two sliding blocks, and described
Two pull rod one end are fixedly connected with supporting block, and the other end of the second pull rod and the first adjacent pull rod are hinged.
In pipe roller wavefront, two the first pull rods are squeezed to centre, the mobile knife predetermined position of support unit, meanwhile, branch
Supporting block on support unit is jacked up by the second pull rod, and pipe to be processed is inserted in the variable diameter mandrel of state at this time, carries out roller wave
Preform；Until roller wave preform terminates, the first pull rod is subjected to biaxial tension to mandrel both ends, supports block reset, after roller wave
Pipe can be detached from variable diameter mandrel.
Compared with the prior art, the advantages of the present invention are as follows:
1. can increase tracheid shape properties by tube blank inner wall feather plucking to be processed, enhancing tube wall sticks together the ability of alloy；Using from
Alloy of the heart casting method in the uniform layer overlay low melting point of tube blank inner wall, the tensile capacity of Lai Tigao tube blank inner wall reduce tube wall
Cracking, corrugated trend improve the forming capacity of inductile alloy thin-wall pipe fitting at normal temperature；
2. processing by the way of stepping roll-in in the pipe preform stage, the problem of traditional rolling formation hardly possible is not only solved,
Conventional roll pressure pipe base is also solved simultaneously because in the multiple waves of synchronous roll-in, material can not flow into and transition is caused to be thinned at trough
The problem of；
3. processing by the way of stepping roll-in in pipe truing phase, the flowing resistance of material in deformation process can be reduced
Power, it is ensured that material can be evenly distributed the tube wall after shaping everywhere；
4. recycling interliner alloy by the way of water-bath immersion, energy consumption is reduced, reduces resources costs, there is sustainable development
Property.
Detailed description of the invention
Fig. 1 is each stage structures schematic diagram of pipe；
Fig. 2 is schematic structural view of the invention one；
Fig. 3 is schematic structural view of the invention two；
Fig. 4 is schematic structural view of the invention three；
Fig. 5 is variable diameter mandrel structure schematic diagram one；
Fig. 6 is variable diameter mandrel structure schematic diagram two；
Fig. 7 is schematic structural view of the invention four.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
It is as shown in Figures 1 to 6: the rolling formation method of inductile alloy super large deflection thin-wall tube, including following process:
Process 1: by 111 inner wall feather plucking of pipe to be processed；
Process 2: using centrifugal casting in the processed uniform layer overlay low-melting alloy 114 of 111 inner wall of pipe of process 1；
Wherein, low-melting alloy fusing point is much smaller than 111 fusing point of pipe；
Process 3: the processed 111 outer surface roll-in of pipe of process 2 is gone out into ripple by the way of stepping roll-in；
Process 4: being flattened the ripple on the processed pipe 111 of process 3 by the way of stepping roll-in, forms finished product pipe fitting；
Process 5: the finished product pipe fitting that process 4 is formed is impregnated by high temperature bath, is recycled the low melting point being attached on its inner wall and is closed
Gold；
Process 6: the processed finished product pipe fitting of process 5 is cleaned using dedicated solvent.
By 111 inner wall feather plucking of pipe to be processed, tracheid shape properties can be increased, enhancing tube wall sticks together the ability of alloy；
Alloy using centrifugal casting in the uniform layer overlay low melting point of 111 inner wall of pipe, the tension energy of 111 inner wall of Lai Tigao pipe
Power reduces tube wall cracking, corrugated trend, at normal temperature, improves the forming capacity of inductile alloy thin-wall pipe fitting；
It is processed by the way of stepping roll-in in 3 stage of process, not only solves the problem of traditional rolling formation hardly possible, while also solved
Conventional roll of having determined pressure pipe base 111 is because in the multiple waves of synchronous roll-in, material can not flow into and transition is caused to be thinned at trough 112
Problem；
It is processed by the way of stepping roll-in in 4 stage of process, the flow resistance of material in deformation process can be reduced, it is ensured that
Material can be evenly distributed tube wall after shaping everywhere；
Interliner alloy is recycled by the way of water-bath immersion, reduces energy consumption, reduces resources costs, there is sustainable developability.
Scheme one:
Process 3 the following steps are included:
Step 1: extruding trough 112 in 111 intermediate calender rolls of pipe；
Step 2: to 111 shaft end two sides of pipe among pipe 111 and by preset space length, successively roll-in goes out several troughs 112；
Under the premise of scheme one, process 4 the following steps are included:
Step 3: 113 roll-in of wave crest of 111 shaft end two sides of pipe is extremely concordant with trough 112；
Step 4: among from 111 shaft end of pipe, two side to pipe 111 by several wave crests 113 successively roll-in to concordant with trough 112.
Processed using step-by-step movement, first go out trough 112 in 111 middle part roller of pipe, then from its deformable intermediate part to shaft end two sides according to
Secondary roller goes out trough 112, and the material at 111 both ends of pipe is gradually pulled in 111 middle part of pipe deformed region, reached because unfettered
Purpose (pipe 111 from feed supplement) of 111 both ends of pipe to 111 middle part feed supplement of pipe has been arrived, therefore, has solved conventional roll pressure pipe base
111 because in the multiple waves of synchronous roll-in, at trough 112 material can not flow into and the problem that causes transition thinned.After roller wave, wave crest
113 is approximately equal with former 111 diameter of pipe, and axial length shortens.
The processing sequence of 4 process of process is just with roller wave preform on the contrary, first first press the shaft end two sides of pipe 111
It is flat, then from 111 shaft end of pipe, two side to pipe 111 among successively wave crest 113 is flattened, greatly reduce material in deformation process
Flow resistance, it is ensured that material can be evenly distributed the tube wall after shaping everywhere.(after rolling out, pipe 111 is configured to thin-wall tube
Part, axial length increase, and caliber becomes smaller.)
In addition, biaxial tension cylinder can be used and stretched to 111 both ends of pipe, pipe can be effectively prevent during process 4
Base 111 is because of 111 surface wrinkling of pipe caused by length increase.
Scheme two:
Step 1: in pipe 111 side shaft end (starting point), roll-in goes out trough 112；
Step 2: from the trough 112 that 111 side shaft end roller of pipe goes out to 111 other side shaft end (end) of pipe and pressing preset space length
Successively roll-in goes out several troughs 112；
Under the premise of scheme two, process 4 the following steps are included:
Step 3: 113 roll-in of wave crest of end is extremely concordant with trough 112；
Step 4: from 111 end of pipe to 111 starting point of pipe by several wave crests 113 successively roll-in to concordant with trough 112.
The ingredient of dedicated solvent includes sodium alkylsiliconate, sodium sulphate, calgon, fatty alcohol polyoxyethylene ether sulfuric acid
Sodium, lauric acid amide of ethanol, water.
The rolling formation device of inductile alloy super large deflection thin-wall tube, including main shaft 1, limiting bracket 2 and power dress
It sets, further includes roller wave apparatus and apparatus for shaping, roller wave apparatus includes several roller wave brackets 3 and variable diameter mandrel 7, on roller wave bracket 3
Equipped with roller wave mould 4, apparatus for shaping includes several shaping brackets 5, and shaping bracket 5, which is equipped with, rolls out mould 6, main shaft 1, roller wave bracket 3,
Shaping bracket 5 is connect with power device, power device can driving spindle 1 rotate, power device can driven roller wave bracket 3 with it is whole
Shape bracket 5 translates；
Variable diameter mandrel 7 includes mandrel 61 and several support units, and several support units are coated at mandrel 61 by preset space length, adjacent
Two support units are connected by the first pull rod 64, and support unit includes a supporting block 63 and two sliding blocks 62, supporting block 63
Between two sliding blocks 62 and it can carry out up and down.
111 one end of pipe is flexibly connected with limiting bracket 2, and the other end is connect with main shaft 1, drives pipe 111 to revolve by main shaft 1
Turn, power device driven roller wave bracket 3 translates, and makes roller wave mould 4 close to pipe 111, and then by roller wave mould 4 in 111 upper roller of pipe
Trough 112 out；Similarly, power device driving shaping bracket 5 translates, and makes to roll out mould 6 close to pipe 111, by rolling out mould 6 for pipe
Wave crest 113 on 111 rolls out.
111 roller wave performing process of pipe needs housing in variable diameter mandrel 7, is in order to ensure energy after 111 roller wave of pipe
Enough smoothly demouldings.
Wherein, power device includes motor, hydraulic cylinder and biaxial tension cylinder.
Several roller wave brackets 3 are spaced predetermined angular circular array arrangement, and the roller wave mould on two neighboring roller wave bracket 3
4 are staggeredly arranged along the axial direction of main shaft 1.
Because the variable diameter limit of pipe 111 material itself is limited, the spacing between two neighboring trough 112 be should not be too large, and lead
It causes that more than two roller wave moulds 4 can not be arranged on single roller wave bracket 3, for this purpose, being provided with the roller of multiple circular arrays distribution
Wave bracket 3, the roller wave mould 4 on two neighboring roller wave bracket 3 are staggeredly arranged along the axial direction of main shaft 1, then are more in order to eliminate
The problem of being interfered between a roller wave mould 4.
Several shaping brackets 5 are spaced predetermined angular circular array arrangement, and the roller wave mould on two neighboring roller wave bracket 3
4 are staggeredly arranged along the axial direction of main shaft 1.
Mobilizable second pull rod 65,65 one end of the second pull rod and the fixed company of supporting block 63 are equipped on two sliding blocks 62
It connects, the other end of the second pull rod 65 and the first adjacent pull rod 64 are hinged.
In 111 roller wavefront of pipe, two the first pull rods 64 are squeezed to centre, the mobile knife predetermined position of support unit, together
When, the supporting block 63 on support unit is jacked up by the second pull rod 65, and pipe 111 to be processed is inserted in the variable diameter mandrel of state at this time
On 7, roller wave preform is carried out；Until roller wave preform terminates, the first pull rod 64 is subjected to biaxial tension, branch to 61 both ends of mandrel
Bracer 63 resets, and the pipe 111 after roller wave can be detached from variable diameter mandrel 7.
Finally, with regard to low-melting alloy thickness problem on tube wall inner wall:
Alloy reducer pipe as shown in Figure 7, as h/D < 1, low-melting alloy thickness ≈ 1t；When 1 < h/D < 1 < 1.7, low melting point is closed
Golden thickness ≈ 1.5t.
Wherein, t is 111 inner wall thickness of pipe to be processed, and h is pipe maximum exradius to be processed, and D is that forming pipe fitting is maximum
Outside diameter.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. the rolling formation method of inductile alloy super large deflection thin-wall tube, it is characterised in that including following process:
Process 1: by tube blank inner wall feather plucking to be processed；
Process 2: using centrifugal casting in the uniform layer overlay low-melting alloy of the processed tube blank inner wall of process 1；It is (specific real
The mode of applying illustrates lower thickness)
Process 3: the processed outer surface of tube blank roll-in of process 2 is gone out into ripple by the way of stepping roll-in；
Process 4: being flattened the ripple on the processed pipe of process 3 by the way of stepping roll-in, forms finished product pipe fitting；
Process 5: the finished product pipe fitting that process 4 is formed is impregnated by high temperature bath, is recycled the low melting point being attached on its inner wall and is closed
Gold；
Process 6: the processed finished product pipe fitting of process 5 is cleaned using dedicated solvent.
2. the rolling formation method of inductile alloy super large deflection thin-wall tube according to claim 1, it is characterised in that
The process 3 the following steps are included:
Step 1: extruding trough in pipe intermediate calender rolls；
Step 2: to pipe shaft end two sides among pipe and by preset space length, successively roll-in goes out several troughs.
3. the rolling formation method of inductile alloy super large deflection thin-wall tube according to claim 2, it is characterised in that
The process 4 the following steps are included:
Step 3: the wave crest roll-in of pipe shaft end two sides is extremely concordant with trough；
Step 4: among from two side of pipe shaft end to pipe by several wave crests successively roll-in to concordant with trough.
4. the rolling formation method of inductile alloy super large deflection thin-wall tube according to claim 1, it is characterised in that
The ingredient of the dedicated solvent include sodium alkylsiliconate, sodium sulphate, calgon, sodium sulfate of polyethenoxy ether of fatty alcohol,
Lauric acid amide of ethanol, water.
5. the rolling formation device of inductile alloy super large deflection thin-wall tube, including main shaft, limiting bracket and power device,
It is characterized in that further including roller wave apparatus and apparatus for shaping, the roller wave apparatus includes several roller wave brackets and variable diameter mandrel, institute
The roller wave bracket stated is equipped with roller wave mould, and the apparatus for shaping includes several shaping brackets, and the shaping bracket is equipped with
Mould is rolled out, the main shaft, roller wave bracket, shaping bracket are connect with power device, and the power device can driving spindle
Rotation, the power device can driven roller wave bracket and the translations of shaping bracket；
The variable diameter mandrel includes mandrel and several support units, and several support units are coated at core by preset space length
Axis, two neighboring support unit are connected by the first pull rod, and the support unit includes a supporting block and two sliding blocks, institute
The supporting block stated is set between two sliding blocks and can carry out up and down.
6. the rolling formation device of inductile alloy super large deflection thin-wall tube according to claim 5, it is characterised in that
Several roller wave spacer support frame predetermined angular circular arrays arrangement, and the roller wave mould on two neighboring roller wave bracket is along main
The axial direction of axis is staggeredly arranged.
7. the rolling formation device of inductile alloy super large deflection thin-wall tube according to claim 6, it is characterised in that
Several shaping spacer support frame predetermined angular circular arrays arrangement, and the roller wave mould on two neighboring roller wave bracket is along main
The axial direction of axis is staggeredly arranged.
8. the rolling formation device of inductile alloy super large deflection thin-wall tube according to claim 5, it is characterised in that
Mobilizable second pull rod is equipped on two sliding blocks, the second described pull rod one end is fixedly connected with supporting block, the
The other end of two pull rods and the first adjacent pull rod are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910079834.9A CN109909342B (en) | 2019-01-28 | 2019-01-28 | Roll forming method and device for low-plasticity alloy thin-walled tube with ultra-large deformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910079834.9A CN109909342B (en) | 2019-01-28 | 2019-01-28 | Roll forming method and device for low-plasticity alloy thin-walled tube with ultra-large deformation |
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| Publication Number | Publication Date |
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| CN109909342A true CN109909342A (en) | 2019-06-21 |
| CN109909342B CN109909342B (en) | 2021-01-05 |
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| CN201910079834.9A Expired - Fee Related CN109909342B (en) | 2019-01-28 | 2019-01-28 | Roll forming method and device for low-plasticity alloy thin-walled tube with ultra-large deformation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250636A (en) * | 2020-04-30 | 2020-06-09 | 宁波市沃瑞斯机械科技有限公司 | Fluctuation pressure regulating system for forming thread rib |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB252242A (en) * | 1925-02-19 | 1926-05-19 | William Arthur Crabtree | Improvements in apparatus for use in the manufacture of sheet metal cylinders, drumsand like containers |
| CN2244439Y (en) * | 1995-12-07 | 1997-01-08 | 机械工业部沈阳仪器仪表工艺研究所 | Rolling shaper for bellows |
| CN1160611A (en) * | 1996-03-25 | 1997-10-01 | 湖北重型机器集团有限公司 | Corrugated pipe rolling method and equipment |
| JP2006299815A (en) * | 2005-04-15 | 2006-11-02 | Hitachi Industrial Equipment Systems Co Ltd | Method of manufacturing for screw rotor and screw rotor |
| CN202685077U (en) * | 2011-11-24 | 2013-01-23 | 徐仁春 | Inner circle mold core shrink device with central shaft rotatable |
| CN102974670A (en) * | 2012-11-30 | 2013-03-20 | 宁波思明汽车科技有限公司 | Fusible alloy recycling and pipe wall adhesion removing method and device for pipe forming |
| CN202984382U (en) * | 2013-01-11 | 2013-06-12 | 乌鲁木齐苏泰开元波纹管有限公司 | Horizontal type roller forming device of heavy-caliber corrugated pipe |
| CN104357854A (en) * | 2014-10-14 | 2015-02-18 | 宁波思明汽车科技有限公司 | Separation method of fusible alloy for tubular product forming and tubular product |
| CN104607641A (en) * | 2015-01-29 | 2015-05-13 | 天津百恩威新材料科技有限公司 | Spray forming pipe expansion core shaft |
| CN204974879U (en) * | 2015-08-03 | 2016-01-20 | 曲靖维拓科技有限公司 | Car pipe fitting rolls muscle equipment |
| CN205997386U (en) * | 2016-06-27 | 2017-03-08 | 单苗苗 | A kind of diameter adjustable mould for making fiber reinforced plastic barrel |
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2019
- 2019-01-28 CN CN201910079834.9A patent/CN109909342B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB252242A (en) * | 1925-02-19 | 1926-05-19 | William Arthur Crabtree | Improvements in apparatus for use in the manufacture of sheet metal cylinders, drumsand like containers |
| CN2244439Y (en) * | 1995-12-07 | 1997-01-08 | 机械工业部沈阳仪器仪表工艺研究所 | Rolling shaper for bellows |
| CN1160611A (en) * | 1996-03-25 | 1997-10-01 | 湖北重型机器集团有限公司 | Corrugated pipe rolling method and equipment |
| JP2006299815A (en) * | 2005-04-15 | 2006-11-02 | Hitachi Industrial Equipment Systems Co Ltd | Method of manufacturing for screw rotor and screw rotor |
| CN202685077U (en) * | 2011-11-24 | 2013-01-23 | 徐仁春 | Inner circle mold core shrink device with central shaft rotatable |
| CN102974670A (en) * | 2012-11-30 | 2013-03-20 | 宁波思明汽车科技有限公司 | Fusible alloy recycling and pipe wall adhesion removing method and device for pipe forming |
| CN202984382U (en) * | 2013-01-11 | 2013-06-12 | 乌鲁木齐苏泰开元波纹管有限公司 | Horizontal type roller forming device of heavy-caliber corrugated pipe |
| CN104357854A (en) * | 2014-10-14 | 2015-02-18 | 宁波思明汽车科技有限公司 | Separation method of fusible alloy for tubular product forming and tubular product |
| CN104607641A (en) * | 2015-01-29 | 2015-05-13 | 天津百恩威新材料科技有限公司 | Spray forming pipe expansion core shaft |
| CN204974879U (en) * | 2015-08-03 | 2016-01-20 | 曲靖维拓科技有限公司 | Car pipe fitting rolls muscle equipment |
| CN205997386U (en) * | 2016-06-27 | 2017-03-08 | 单苗苗 | A kind of diameter adjustable mould for making fiber reinforced plastic barrel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250636A (en) * | 2020-04-30 | 2020-06-09 | 宁波市沃瑞斯机械科技有限公司 | Fluctuation pressure regulating system for forming thread rib |
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|---|---|
| CN109909342B (en) | 2021-01-05 |
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