CN102756108B - Semi-solid extruding and casting molding mould of compressor crankshaft and molding process - Google Patents
Semi-solid extruding and casting molding mould of compressor crankshaft and molding process Download PDFInfo
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- CN102756108B CN102756108B CN201210213211.4A CN201210213211A CN102756108B CN 102756108 B CN102756108 B CN 102756108B CN 201210213211 A CN201210213211 A CN 201210213211A CN 102756108 B CN102756108 B CN 102756108B
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- compressor crank
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Abstract
The invention provides a semi-solid extruding and casting molding mould and molding process of a compressor crankshaft. The mould comprises an upper mould and a lower mould, wherein a closed space is formed by carrying out die assembly on the upper mould and the lower mould and serves as a cavity of a extruding and casting piece of the compressor crankshaft; a puncher pin passes through a hole at the center of the lower mould to enter the cavity; a template of the upper mould is fixedly connected with a lug boss part at the top of the upper mould through a pressing rod; the top of a mould core is fixedly connected to the template of the upper mould through a thread; a piston rod passes through the center of the template of the upper mould; the flange end at the lower part of the piston rod is in threaded connection with a pressurizing plate to drive the pressurizing plate to move in the space of a groove at the upper part of the upper mould; the bottom face of the pressurizing plate is connected with an annular lug boss; and the mould core passes through a middle hole of the annular lug boss and is inserted into the top of the mould cavity. In the molding process, semi-solid slurry is adopted to fill the mould, a casting temperature is low, and a mould filling process is gentle; and an extruding and casting method is adopted for molding. Therefore, the molding mould and the molding process have the advantages that the material utilization rate is high, the service life of the molding mould is long, tissues of a molded piece are dense, and the production efficiency is high.
Description
Technical field
The invention belongs to compressor crank shaft forming technique field, be specifically related to a kind of compressor crank shaft semisolid extrusion casint shaping dies and forming technology.
Background technology
Compressor crank shaft is produced the main way that adopts metal mold gravity casting at present, and owing to there being larger running and feeding system, stock utilization is low, and percent defective is high, and the processing capacity of foundry goods is large, and production efficiency is low.
Semi-solid state forming technique originates from 20 century 70s, and experience, from basic research, technological development, equipment development, has entered the industrial applications stage at present.Compare with liquid metal casting, semi-solid-state metal has the spherical nascent solid phase of certain volume mark, and Semi-Solid Metals Forming part is fine and close, mechanical property is high, machining amount is few, die life is long; Forge and to compare with solid metallic, the liquid phase that semi-solid-state metal contains certain volume mark, Semi-Solid Metals Forming part is complicated, be easy to near-net-shape, machining amount is few, so semi-solid state forming technique research and application cause the great attention of countries in the world.
Semi-solid-state shaping has formed a process systems that has his own strong points, complements each other together with extrusion casint, can make full use of the advantage of external pressure, completes and solidifies feeding, eliminates various defects, obtain geomery each one, the different product of performance requirement.
Also do not see at present the relevant report that semi-solid state forming technique is applied to compressor crank shaft production field.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the invention is to propose a kind of compressor crank shaft semisolid extrusion casint shaping dies and forming technology, have advantages of that stock utilization is high, shaping dies life-span length, drip molding dense structure, production efficiency is high.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of compressor crank shaft semisolid extrusion casint shaping dies, comprise patrix 6 and counterdie 8, patrix 6 and counterdie 8 are separately fixed at the upper of extrusion casting machine, on die shoe, it is the die cavity of compressor crank shaft extrusion casint part 7 that patrix 6 and counterdie 8 matched moulds form enclosure space, in die cavity, center is spreader, drift 10 enters die cavity through the hole in counterdie 8 centres, patrix template 4 is fixedly connected with the boss position at patrix 6 tops by depression bar 2, the top of core 3 is threaded connection and is fixed in patrix template 4, piston rod 1 is through the center of patrix template 4, the flange end of piston rod 1 bottom is threaded with increased pressure board 5, drive increased pressure board 5 movable in the recess space on patrix 6 tops, increased pressure board 5 bottom surfaces are connected with annular boss, core 3 is through the interstitial hole of annular boss, and the top of inserting mold cavity.
A compressor crank shaft semisolid extrusion casint forming technology, comprises the following steps:
The first step, raw metal casting pig or spheroidal graphite cast-iron that compressor crank shaft is required melt;
Second step, by the casting pig after fusing or spheroidal graphite cast-iron, to make fraction solid be the semi solid slurry between 0.3 ~ 0.5;
The 3rd step, the barrel of compressor crank shaft shaping dies and extrusion casting apparatus is preheating to 300 ~ 400 ℃, and by the patrix of compressor crank shaft shaping dies 6, counterdie 8 matched moulds, the position of adjusting the increased pressure board 5 of shaping dies makes increased pressure board 5 boss above withstand on the top of mold cavity;
The 4th step, pours semi solid slurry in the barrel of extrusion casint former, maybe the semi solid slurry preparing is solidified, and carrying out secondary remelting and controlling semi solid slurry fraction solid is to pour in the barrel of extrusion casint former after between 0.3 ~ 0.5;
The 5th step, adjusts pressure head 10, with the semi solid slurry in the speed promotion extrusion casint former barrel of 0.05 ~ 0.25m/s, die cavity is carried out to filling;
The 6th step, after filling completes, pressure head 10 continues to apply 80 ~ 100Mp pressure, and semi solid slurry is carried out to pressurize 10 ~ 25s, increased pressure board 5 is applied to 80 ~ 100Mp pressure simultaneously, and pressurize 10 ~ 25s, makes the elongated the tip of the axis of compressor crank shaft at Under Pressure Solidification;
The 7th step, after pressurize finishes, patrix 6 is up motion under the effect of depression bar 2, separate with counterdie 8, when patrix 6 rises, increased pressure board 5 is also synchronized with the movement, and when patrix 6 moves to the height higher than automatic modeling crankshaft casting, piston rod 1 drives increased pressure board 5 to move downward the demoulding that realizes compressor crank shaft foundry goods 7;
The 8th step, cuts the cast gate of compressor crank shaft foundry goods 7 and runner, and obtains plural compressor crank shaft part by machined, heat treatment.
The present invention has the following advantages:
1, utilize semisolid Extrution casting technique shaping bent axle liquid forging can realize near-net-shape, the mechanical property of foundry goods is good, and allowance is few, and shrinkage porosite shrinkage cavity defect is few, and yield rate is high.Forming temperature is low in addition, and forming process is the mobile laminar condition that is of semi solid slurry very, and little to metal die impact, improve die life.
2, bent axle semisolid squeeze casting mould can be realized the pressurization to slender axles position, has reduced plastic force, and the defect of foundry goods is significantly reduced.This mould adopts indirect liquid to be swaged into shape, can realize one-mold multiple-member and be shaped, and production efficiency is high.
Accompanying drawing explanation
Accompanying drawing be shaping dies of the present invention partly cut open figure.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
With reference to accompanying drawing, a kind of compressor crank shaft semisolid extrusion casint shaping dies, comprise patrix 6 and counterdie 8, patrix 6 and counterdie 8 are separately fixed at the upper of extrusion casting machine, on die shoe, it is the die cavity of compressor crank shaft extrusion casint part 7 that patrix 6 and counterdie 8 matched moulds form enclosure space, in die cavity, center is spreader, semi solid slurry is assigned in circumferential distribution compressor crank shaft part die cavity, 2 above compressor crank shafts can be used for being shaped, drift 10 enters die cavity through the hole in counterdie 8 centres, slurry on extrusion casint former barrel is pushed to die cavity, and after completing, filling carries out pressurize, form compressor crank shaft extrusion casint part 7, patrix template 4 is fixedly connected with the boss position at patrix 6 tops by depression bar 2, play the effect of locking die and peel of mould, the top of core 3 is threaded connection and is fixed in patrix template 4, piston rod 1 is through the center of patrix template 4, the flange end of piston rod 1 bottom is threaded with increased pressure board 5, drive increased pressure board 5 movable in the recess space on patrix 6 tops, increased pressure board 5 bottom surfaces are connected with annular boss, when being shaped, piston rod 1 can drive 5 pairs of compressor crank shaft slender axles end extruding of increased pressure board, and can when the demoulding of compressor crank shaft foundry goods, play the effect that ejects foundry goods, core 3 is through the interstitial hole of annular boss, and the top of inserting mold cavity, be used for forming the hole above bent axle.
A compressor crank shaft semisolid extrusion casint forming technology, comprises the following steps:
The first step, raw metal casting pig or spheroidal graphite cast-iron that compressor crank shaft is required melt;
Second step, by the casting pig after fusing or spheroidal graphite cast-iron, to make fraction solid be the semi solid slurry between 0.3 ~ 0.5;
The 3rd step, the barrel of compressor crank shaft shaping dies and extrusion casting apparatus is preheating to 300 ~ 400 ℃, and by the patrix 6 of extrusion casint former shaping dies, counterdie 8 matched moulds, the position of adjusting the increased pressure board 5 of shaping dies makes increased pressure board 5 boss above withstand on the top of mold cavity;
The 4th step, semi solid slurry is poured in the barrel of extrusion casint former, maybe the semi solid slurry preparing is solidified, carrying out secondary remelting and controlling semi solid slurry fraction solid is to pour in the barrel of extrusion casint former after between 0.3 ~ 0.5, the control of slurry semisolid fraction solid is a very crucial parameter of semi-solid-state shaping, fraction solid is too low, slurry initial viscosity is very large, and solidify very fast, cannot complete filling, fraction solid is too high, and organizing after being shaped is thick, spherical bad;
The 5th step, adjust pressure head 10, with the semi-solid-state metal liquid in the speed promotion extrusion casint former barrel of 0.05 ~ 0.25m/s, die cavity is carried out to filling, the selection of pressure head 10 speed is very crucial parameters, pressure head excessive velocities, will cause semi solid slurry that splash and turbulent flow occur in flow process, and foundry goods will be rolled up gas, the defect such as be mingled with, pressure head speed is too slow, and semi solid slurry solidifies, and cannot filling complete;
The 6th step, the effect of pressure is that workpiece is carried out to feeding, eliminate casting defect, the size of dwell pressure depends on the kind of material and the size of character and foundry goods, shape, the factors such as height, compressor crank shaft belongs to longaxones parts, ratio of height to diameter is large, in extrusion casint, metal liquid stream is in the time of this region, the pressure loss is very large, cannot fine feeding, so be easy to produce defect, if make this section of feeding by strengthening ram pressures, the pressure of pressure head will be very large, the input that can add large equipment, by add the way of increased pressure board in longitudinal end, can be so that the longitudinal end of bent axle obtains feeding, can also reduce the pressure of pressure head, after semi solid slurry has been filled mold cavity, according to production equipment situation, start as early as possible pressurization, after filling completes, pressure head 10 continues to apply 80 ~ 100Mp pressure, semi solid slurry is carried out to pressurize 10 ~ 25s, increased pressure board 5 is applied to 80 ~ 100Mp pressure simultaneously, and pressurize 10 ~ 25s, make the elongated the tip of the axis of compressor crank shaft at Under Pressure Solidification,
The 7th step, after pressurize finishes, patrix 6 is up motion under the effect of depression bar 2, separate with counterdie 8, when patrix 6 rises, increased pressure board 5 is also synchronized with the movement, and when patrix 6 moves to the height higher than automatic modeling crankshaft casting, piston rod 1 drives increased pressure board 5 to move downward the demoulding that realizes compressor crank shaft foundry goods 7;
The 8th step, cuts the cast gate of compressor crank shaft foundry goods 7 and runner, and obtains plural compressor crank shaft part by machined, heat treatment.
Claims (2)
1. a compressor crank shaft semisolid extrusion casint shaping dies, comprise patrix (6) and counterdie (8), it is characterized in that: patrix (6) and counterdie (8) are separately fixed at the upper of extrusion casting machine, on die shoe, it is the die cavity of compressor crank shaft extrusion casint part (7) that patrix (6) and counterdie (8) matched moulds form enclosure space, in die cavity, center is spreader, drift (10) enters die cavity through the hole in counterdie (8) centre, patrix template (4) is fixedly connected with the boss position at patrix (6) top by depression bar (2), the top of core (3) is threaded connection and is fixed in patrix template (4), piston rod (1) is through the center of patrix template (4), the flange end of piston rod (1) bottom is threaded with increased pressure board (5), drive increased pressure board (5) movable in the recess space on patrix (6) top, increased pressure board (5) bottom surface is connected with annular boss, core (3) is through the interstitial hole of annular boss, and the top of inserting mold cavity.
2. the forming technology of a kind of compressor crank shaft semisolid extrusion casint shaping dies according to claim 1, is characterized in that, comprises the following steps:
The first step, raw metal casting pig or spheroidal graphite cast-iron that compressor crank shaft is required melt;
Second step, by the casting pig after fusing or spheroidal graphite cast-iron, to make fraction solid be the semi solid slurry between 0.3～0.5;
The 3rd step, the barrel of compressor crank shaft shaping dies and extrusion casint former is preheating to 300～400 ℃, and by the patrix of compressor crank shaft shaping dies (6), counterdie (8) matched moulds, the position of adjusting the increased pressure board (5) of shaping dies makes increased pressure board (5) boss above withstand on the top of mold cavity;
The 4th step, pours semi solid slurry in the barrel of extrusion casint former, maybe the semi solid slurry preparing is solidified, and carrying out secondary remelting and controlling semi solid slurry fraction solid is to pour in the barrel of extrusion casint former after between 0.3～0.5;
The 5th step, adjusts drift (10), with the semi solid slurry in the speed promotion extrusion casint former barrel of 0.05～0.25m/s, die cavity is carried out to filling;
The 6th step, filling completes back punching head (10) and continues to apply 80～100Mp pressure, and semi solid slurry is carried out to pressurize 10～25s, increased pressure board (5) is applied to 80～100Mp pressure simultaneously, and pressurize 10～25s, make the elongated the tip of the axis of compressor crank shaft at Under Pressure Solidification;
The 7th step, after pressurize finishes, patrix (6) is up motion under the effect of depression bar (2), separate with counterdie (8), when patrix (6) rises, increased pressure board (5) is also synchronized with the movement, and when patrix (6) moves to the height higher than automatic modeling crankshaft casting, piston rod (1) drives increased pressure board (5) to move downward the demoulding that realizes compressor crank shaft foundry goods (7);
The 8th step, cuts cast gate and the runner of compressor crank shaft foundry goods (7), and obtains plural compressor crank shaft part by machined, heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213211.4A CN102756108B (en) | 2012-06-27 | 2012-06-27 | Semi-solid extruding and casting molding mould of compressor crankshaft and molding process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210213211.4A CN102756108B (en) | 2012-06-27 | 2012-06-27 | Semi-solid extruding and casting molding mould of compressor crankshaft and molding process |
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| Publication Number | Publication Date |
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| CN102756108A CN102756108A (en) | 2012-10-31 |
| CN102756108B true CN102756108B (en) | 2014-10-15 |
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| CN113102729A (en) * | 2021-03-09 | 2021-07-13 | 清华大学 | Double-extrusion punch for extrusion casting process of large complex casting |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1490759A (en) * | 1974-04-18 | 1977-11-02 | Hanning Elektro Werke | Mould and moulding process |
| CN1249970A (en) * | 1999-09-22 | 2000-04-12 | 河北科技大学 | Manufacture of wear resisting product |
| CN101618450A (en) * | 2009-07-21 | 2010-01-06 | 华南理工大学 | Method for indirect extrusion casting by utilizing filling of electromagnetic force and device thereof |
| CN101927334A (en) * | 2009-09-30 | 2010-12-29 | 广东鸿图科技股份有限公司 | Movable type die-casting local pressurizing device |
-
2012
- 2012-06-27 CN CN201210213211.4A patent/CN102756108B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1490759A (en) * | 1974-04-18 | 1977-11-02 | Hanning Elektro Werke | Mould and moulding process |
| CN1249970A (en) * | 1999-09-22 | 2000-04-12 | 河北科技大学 | Manufacture of wear resisting product |
| CN101618450A (en) * | 2009-07-21 | 2010-01-06 | 华南理工大学 | Method for indirect extrusion casting by utilizing filling of electromagnetic force and device thereof |
| CN101927334A (en) * | 2009-09-30 | 2010-12-29 | 广东鸿图科技股份有限公司 | Movable type die-casting local pressurizing device |
Non-Patent Citations (2)
| Title |
|---|
| 吴岳壹等.铸造成型局部加压补缩控制系统设计和应用实例.《兵器材料科学与工程》.2010,第33卷(第3期), |
| 铸造成型局部加压补缩控制系统设计和应用实例;吴岳壹等;《兵器材料科学与工程》;20100531;第33卷(第3期);第37页至第40页 * |
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