CN103191945A - Method and device for high-pressure hydraulic flange plasticity forming - Google Patents
Method and device for high-pressure hydraulic flange plasticity forming Download PDFInfo
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- CN103191945A CN103191945A CN2012100134350A CN201210013435A CN103191945A CN 103191945 A CN103191945 A CN 103191945A CN 2012100134350 A CN2012100134350 A CN 2012100134350A CN 201210013435 A CN201210013435 A CN 201210013435A CN 103191945 A CN103191945 A CN 103191945A
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Abstract
The invention discloses a method and a device for high-pressure hydraulic flange plasticity forming. The device comprises an upper mold part, a lower mold part, a discharging device, a female mold cooling device and a guiding device. A cone at a lower end of a punch of the upper mold part has 5 degrees of a cone angle. A female mold of the lower mold part is in an interference fit relationship with a prestress ring; an interference value is in a range of 0 to 0.15mm; and a cavity draft is 3 degrees. A raw blank is subjected to soft annealing treatment, then is subjected to surface treatment and heating, and then is put into an extrusion mold to form a flange outline part. The surface treatment is phosphatization saponification surface treatment. A warm plastic formation temperature of the raw blank is in a range of 500 to 800 DEG C and a warm extrusion heating formation temperature is equal to the blank formation temperature. The method and the device realize high formation quality and a fine and uniform microstructure, adopt a warm extrusion technology, reduce a formation force, shorten process time, adopt a lower mold water cooling technology, and reduce the influence produced by lower mold thermal deformation on a plasticity forming precision.
Description
Technical field
The present invention relates to Hydraulic Field, refer in particular to a kind of high-pressure and hydraulic flange plastic molding method and device.
Background technology
Flange is a kind of pipe and interconnective part of pipe of making, and has obtained in fields such as petroleum pipeline, chemical industry, aqueducts using widely.The conventional method of manufacturing flange mainly contains casting, rolls method, forging method etc.The defective that cast flange exists is more, should not be as the high-intensity flange of high pressure such as pore, burning into sand, trachoma etc., and practical application is subjected to certain restriction.It is long to roll the method process time, and very easily waste material rolls the back distortion seriously, the leveling difficulty, and need the multiple tracks subsequent handling to handle, this has just strengthened manufacturing cost.The flange that adopts plastic forming process (warm extrusion pressure) to make, have save a large amount of manpower and materials, forming speed is fast, production efficiency is high, technological process is simple, equipment investment is few, do not have advantages such as cutting, thereby and the dense structure of material can improve the toughness of flange, more suitable important events, and environment do not had negative effect, meet the social trend of green manufacturing.Improve though in the existing technology existing bending method is made flange technology, the serious phenomenon of distortion in the bending method is not resolved, distortion back leveling difficulty, and operation such as also need to weld, its process time is long, and complex process has strengthened manufacturing cost.
Summary of the invention
The object of the present invention is to provide a kind of high-pressure and hydraulic flange plastic molding method and device, the whole Plastic Forming of flange, mechanical strength height, manufacturing process are simple, have no machining, the forming quality height, the intensity height, production cost is low, characteristics such as production efficiency height.
Implementing technical scheme of the present invention is:
A kind of high-pressure and hydraulic flange plastic molding method and device, its device comprise part of the upper die, part of the lower die, device for discharging, die cooling device and guider.
Described part of the upper die is made up of upper bolster, last cushion block outer ring, hexagon socket head cap screw, patrix cushion block, punch, drift outer ring, upper molded plate.Punch clamps and is bearing on the patrix cushion block by the drift outer ring, the patrix cushion block has the drift outer ring to entangle outward, be bearing on the upper bolster lower surface, the drift outer ring is by hexagon socket head cap screw and the fastening one of upper bolster, and the drift outer ring is fastened as one by hexagon socket head cap screw and last cushion block outer ring by upper molded plate.Wherein, described punch is characterised in that the circular cone of drift lower end has 5 ° cone angle.
Described part of the lower die is made up of push piece bar, counterdie outer ring, counterdie cushion block, push rod, die shoe, die, shrink ring, pipe joint.Die is with shrink ring outward and is positioned at the top of counterdie cushion block, and the counterdie cushion block is with the counterdie outer ring outward, and the counterdie outer ring combines as a whole with die shoe by hexagon socket head cap screw.Wherein, described die is characterised in that die and shrink ring adopt interference fit, and the magnitude of interference is 0～0.15mm, and the die cavity draw taper is 3 °.
In the described device for discharging, push rod is bearing on the push piece bar.
In the described die cooling device, the inwall of shrink ring offers some annular water tanks, and makes an opening through vertical slot and open apopore, and cooling water is injected toward water inlet pipe, in inner loop winding number week, takes away the heat of die, is flowed out by delivery port to enter cooling device again.In this mould, the flow of cooling water direction under go out on advancing, cooling water pipe is used with the bore flexible pipe and is linked to each other with pipe joint.
Described guider is made up of guide pillars and bushes, and guide pin bushing and upper bolster adopt interference fit, and the bottom of guide pillar and die shoe guide pillar hole interference fit adopt matched in clearance between guide pillar and the guide pin bushing.
Further specify, with the annealed softening processing of original blank, and then through putting into extrusion die be shaped the outline portion of flange after surface treatment and the heating.
Described surface treatment is phosphatization saponification surface treatment.
The warm Plastic Forming temperature of described blank is between 500 ℃～800 ℃, and warm extrusion presses the heating forming temperature consistent with the blank forming temperature.
Implement the present invention and carry out following steps:
1) earlier the mould that assembles is placed on the press bench, the beginning punch is in upper limit position, and device for discharging is in the lower position, and die and punch are in released state;
2) make blank on request, described blank is cylindrical column, and blank is handled by the technological requirement annealing softening, with the hardness that reduces material, eliminate internal stress and obtain favorable tissue;
3) blank is carried out phosphatization saponification surface treatment, reduce the wear rate of extruding force and mould;
4) by the technological requirement heating, described blank temperature Plastic Forming temperature is between 500 ℃～800 ℃, and warm extrusion presses the heating forming temperature consistent with the blank forming temperature.
5) open external cooling water valve, cooling water is flow in the groove of shrink ring inwall, counterdie is cooled off;
6) blank after will heating places in the die, and the slide block of forcing press acts on downwards, and punch enters die, makes blank generation plastic deformation, processes the flange workpiece;
7) after shaping finished, the press ram backhaul drove drift and withdraws from from die, and device for discharging ejects workpiece by push rod from die, finish a working cycles.
Enforcement the invention has the beneficial effects as follows: flange forming quality height, even tissue refinement, the mechanical property of raising blank; Adopt warm extrusion to press technology, plastic force reduces, and process time is short, and forming speed is fast; Counterdie adopts water cooling, has reduced counterdie because of the influence of thermal deformation to the flange forming accuracy.
Description of drawings
The apparatus structure schematic diagram of Fig. 1 Plastic Forming of the present invention
Punch schematic diagram among Fig. 2 the present invention
Die schematic diagram among Fig. 3 the present invention; Wherein a is front view, and b is vertical view
1-upper bolster, the last cushion block of 2-outer ring, 3-hexagon socket head cap screw, 4-patrix cushion block, 5-punch, 6-drift outer ring, 7-guide pin bushing, 8-guide pillar, 9-upper molded plate, 10-push piece bar, 11-counterdie outer ring, 12-counterdie cushion block, 13-push rod, 14-die shoe 15-die, 16-shrink ring, 17-pipe joint, 18-workpiece.
Specific embodiments
Describe the present invention in detail below in conjunction with accompanying drawing.
A kind of high-pressure and hydraulic flange plastic molding method and device comprise part of the upper die, part of the lower die, device for discharging, die cooling device and guider;
Described part of the upper die is made up of upper bolster 1, last cushion block outer ring 2, hexagon socket head cap screw 3, patrix cushion block 4, punch 5, drift outer ring 6, upper molded plate 9.Punch 5 clamps and is bearing on the patrix cushion block 4 by drift outer ring 6, there is drift outer ring 6 to entangle outside the patrix cushion block 4, be bearing on upper bolster 1 lower surface, drift outer ring 6 is by hexagon socket head cap screw 3 and upper bolster 1 fastening one, and drift outer ring 6 is fastened as one by hexagon socket head cap screw 3 and last cushion block outer ring 2 by upper molded plate 9.Wherein, described punch 5 is characterised in that the circular cone of drift 5 lower ends has 5 ° cone angle.
Described part of the lower die is made up of push piece bar 10, counterdie outer ring 11, counterdie cushion block 12, push rod 13, die shoe 14, die 15, shrink ring 16, pipe joint 17.The die 12 outer tops that are with shrink ring 16 and are positioned at counterdie cushion block 12 are with counterdie outer ring 11 outside the counterdie cushion block 12, and counterdie outer ring 11 combines as a whole with die shoe 14 by hexagon socket head cap screw 3.Wherein, described die 12 is characterised in that die 12 adopts interference fit with shrink ring 16, and the magnitude of interference is 0～0.15mm, and the die cavity draw taper is 3 °
In the described device for discharging, push rod 13 is bearing on the push piece bar 10.
In the described die cooling device, the inwall of shrink ring 16 offers some annular water tanks, and makes an opening through vertical slot and open apopore, cooling water is injected toward water inlet pipe, in inner loop winding number week, take away the heat of die 15, enter cooling device again by the delivery port outflow.In this mould, the flow of cooling water direction under go out on advancing, cooling water pipe is used with the bore flexible pipe and is linked to each other with pipe joint 17.
Described guider is made up of guide pillar 8 and guide pin bushing 7, and guide pin bushing 7 adopts interference fit with upper bolster 1, and the bottom of guide pillar 8 and die shoe 14 guide pillar hole interference fit adopt between guide pillar 8 and the guide pin bushing 7 to be slidingly matched.
Concrete implementation step is:
1) device that will assemble earlier places on the press bench, and beginning punch 5 is in upper limit position, and device for discharging is in the lower position, and die 15 is in released state with punch 5;
2) make blank on request, described blank is cylindrical column, and blank is handled by the technological requirement annealing softening, with the hardness that reduces material, eliminate internal stress and obtain favorable tissue;
3) blank is carried out phosphatization saponification surface treatment, reduce the wear rate of extruding force and mould;
4) by the technological requirement heating, described blank temperature Plastic Forming temperature is between 500 ℃～800 ℃, and warm extrusion presses the heating forming temperature consistent with the blank forming temperature.
5) open external cooling water valve, cooling water is flow in the groove of shrink ring inwall, counterdie is cooled off;
6) blank after will heating places in the die 15, and the slide block of forcing press acts on downwards, and punch 5 enters die 15, makes blank generation plastic deformation, processes the flange workpiece;
7) after shaping finished, the press ram backhaul drove drift 5 and withdraws from from die 15, and device for discharging ejects workpiece 18 by push rod 13 from die 15, finish a working cycles.
Claims (7)
1. a high-pressure and hydraulic flange plastic molding method and device, its device comprises the part of the upper die, the part of the lower die, device for discharging, die cooling device and guider, it is characterized in that described part of the upper die is by upper bolster, last cushion block outer ring, hexagon socket head cap screw, the patrix cushion block, punch, the drift outer ring, upper molded plate is formed, punch clamps and is bearing on the patrix cushion block by the drift outer ring, the patrix cushion block has the drift outer ring to entangle outward, be bearing on the upper bolster lower surface, the drift outer ring is by hexagon socket head cap screw and the fastening one of upper bolster, the drift outer ring is fastened as one by hexagon socket head cap screw and last cushion block outer ring by upper molded plate, described part of the lower die is by the push piece bar, the counterdie outer ring, the counterdie cushion block, push rod, die shoe, die, shrink ring, pipe joint is formed, die is with shrink ring outward and is positioned at the top of counterdie cushion block, the counterdie cushion block is with the counterdie outer ring outward, the counterdie outer ring combines as a whole with die shoe by hexagon socket head cap screw, in the described device for discharging, push rod is bearing on the push piece bar, described guider is made up of guide pillars and bushes, guide pin bushing and upper bolster adopt interference fit, the bottom of guide pillar and die shoe guide pillar hole interference fit adopt matched in clearance between guide pillar and the guide pin bushing.
2. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that described punch is characterised in that, the circular cone of drift lower end has 5 ° cone angle.
3. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that described die die and shrink ring adopt interference fit, and the magnitude of interference is 0～0.15mm, and the die cavity draw taper is 3 °.
4. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device, it is characterized in that in the described die cooling device, the inwall of shrink ring offers some annular water tanks, and make an opening through vertical slot and open apopore, cooling water is injected toward water inlet pipe, flowed out by delivery port and to enter cooling device again, the flow of cooling water direction under go out on advancing, cooling water pipe is used with the bore flexible pipe and is linked to each other with pipe joint.
5. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device, it is characterized in that the annealed softening processing of described original blank, and then through putting into extrusion die be shaped the outline portion of flange after surface treatment and the heating.
6. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that described surface treatment is phosphatization saponification surface treatment.
7. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that the warm Plastic Forming temperature of described blank is between 500 ℃～800 ℃.
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| CN2012100134350A CN103191945A (en) | 2012-01-10 | 2012-01-10 | Method and device for high-pressure hydraulic flange plasticity forming |
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| CN2012100134350A CN103191945A (en) | 2012-01-10 | 2012-01-10 | Method and device for high-pressure hydraulic flange plasticity forming |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447340A (en) * | 2013-08-27 | 2013-12-18 | 中国兵器科学研究院宁波分院 | Pre-diverging-wedge pressing precision forming die and disc forming method |
| CN103551439A (en) * | 2013-11-12 | 2014-02-05 | 张有龙 | Non-pollution cold extruding molding method and cold extruding mould for packaging container flange |
| CN104070079A (en) * | 2014-06-20 | 2014-10-01 | 宁国市瑞普密封件有限公司 | Novel die |
| CN104148889A (en) * | 2014-07-07 | 2014-11-19 | 河南科技大学 | Square plate shell blank forming method and matched forming dies thereof |
| CN104759847A (en) * | 2015-03-31 | 2015-07-08 | 常州大学 | Thermal extruding forming method and device for chain wheel |
| CN105478511A (en) * | 2015-12-25 | 2016-04-13 | 青海模具制造科技有限公司 | Extrusion die |
| CN105478512A (en) * | 2015-12-28 | 2016-04-13 | 青海模具制造科技有限公司 | Extrusion die |
| CN106391867A (en) * | 2016-11-08 | 2017-02-15 | 上海电机学院 | Male flange die and manufacturing method thereof |
| CN107116166A (en) * | 2016-12-29 | 2017-09-01 | 宜昌华益工具制造股份有限公司 | A kind of sleeve processing device and technique |
| CN108380688A (en) * | 2018-02-08 | 2018-08-10 | 江苏海宇机械有限公司 | Splined shaft cold extrusion processing mold and processing method |
| CN108500075A (en) * | 2018-04-20 | 2018-09-07 | 北京航星机器制造有限公司 | A kind of aluminium alloy flange disk heating tube hot type mold and its extrusion forming method |
| CN108655198A (en) * | 2018-08-19 | 2018-10-16 | 重庆泰山电缆有限公司 | A kind of crowded aluminum die locking member and improve aluminum-extruding machine die sleeve deformation method |
| CN110202020A (en) * | 2019-06-28 | 2019-09-06 | 安徽嘉岳金属科技有限公司 | A kind of quick-changing type cylinder barrel indirect-extrusion mould |
| CN113210553A (en) * | 2021-06-02 | 2021-08-06 | 中冶建工集团有限公司 | Prestressed porous anchorage machining equipment and technology |
| CN113814287A (en) * | 2021-10-11 | 2021-12-21 | 中北大学 | Precise warm extrusion forming method of steel anchoring flange and steel anchoring flange |
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| CN102205356A (en) * | 2010-03-30 | 2011-10-05 | 陆颂荫 | Cold extrusion die for double end pipe joint |
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| JPS57130724A (en) * | 1981-02-03 | 1982-08-13 | Sumitomo Metal Ind Ltd | Manufacture of flanged joint |
| CN1213593A (en) * | 1997-10-07 | 1999-04-14 | 邓晓光 | Semi-shaft jacket heat extruding shaping tech. |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447340A (en) * | 2013-08-27 | 2013-12-18 | 中国兵器科学研究院宁波分院 | Pre-diverging-wedge pressing precision forming die and disc forming method |
| CN103447340B (en) * | 2013-08-27 | 2015-07-22 | 中国兵器科学研究院宁波分院 | Pre-diverging-wedge pressing precision forming die and disc forming method |
| CN103551439A (en) * | 2013-11-12 | 2014-02-05 | 张有龙 | Non-pollution cold extruding molding method and cold extruding mould for packaging container flange |
| CN104070079A (en) * | 2014-06-20 | 2014-10-01 | 宁国市瑞普密封件有限公司 | Novel die |
| CN104148889A (en) * | 2014-07-07 | 2014-11-19 | 河南科技大学 | Square plate shell blank forming method and matched forming dies thereof |
| CN104759847A (en) * | 2015-03-31 | 2015-07-08 | 常州大学 | Thermal extruding forming method and device for chain wheel |
| CN105478511A (en) * | 2015-12-25 | 2016-04-13 | 青海模具制造科技有限公司 | Extrusion die |
| CN105478512A (en) * | 2015-12-28 | 2016-04-13 | 青海模具制造科技有限公司 | Extrusion die |
| CN106391867A (en) * | 2016-11-08 | 2017-02-15 | 上海电机学院 | Male flange die and manufacturing method thereof |
| CN107116166A (en) * | 2016-12-29 | 2017-09-01 | 宜昌华益工具制造股份有限公司 | A kind of sleeve processing device and technique |
| CN108380688A (en) * | 2018-02-08 | 2018-08-10 | 江苏海宇机械有限公司 | Splined shaft cold extrusion processing mold and processing method |
| CN108500075A (en) * | 2018-04-20 | 2018-09-07 | 北京航星机器制造有限公司 | A kind of aluminium alloy flange disk heating tube hot type mold and its extrusion forming method |
| CN108655198A (en) * | 2018-08-19 | 2018-10-16 | 重庆泰山电缆有限公司 | A kind of crowded aluminum die locking member and improve aluminum-extruding machine die sleeve deformation method |
| CN110202020A (en) * | 2019-06-28 | 2019-09-06 | 安徽嘉岳金属科技有限公司 | A kind of quick-changing type cylinder barrel indirect-extrusion mould |
| CN113210553A (en) * | 2021-06-02 | 2021-08-06 | 中冶建工集团有限公司 | Prestressed porous anchorage machining equipment and technology |
| CN113210553B (en) * | 2021-06-02 | 2023-04-25 | 中冶建工集团有限公司 | Prestressed porous anchorage processing equipment and process |
| CN113814287A (en) * | 2021-10-11 | 2021-12-21 | 中北大学 | Precise warm extrusion forming method of steel anchoring flange and steel anchoring flange |
| CN113814287B (en) * | 2021-10-11 | 2023-07-28 | 中北大学 | Precise warm extrusion forming method for steel anchoring flange and steel anchoring flange |
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Application publication date: 20130710 |