CN113953492A - Water quenching method for precision casting and using equipment thereof - Google Patents
Water quenching method for precision casting and using equipment thereof Download PDFInfo
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- CN113953492A CN113953492A CN202111241798.5A CN202111241798A CN113953492A CN 113953492 A CN113953492 A CN 113953492A CN 202111241798 A CN202111241798 A CN 202111241798A CN 113953492 A CN113953492 A CN 113953492A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000010791 quenching Methods 0.000 title claims abstract description 42
- 230000000171 quenching effect Effects 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005495 investment casting Methods 0.000 title claims abstract description 19
- 238000007654 immersion Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 claims 3
- 238000005266 casting Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention belongs to the technical field of auxiliary equipment for casting, and particularly relates to a water quenching method for precision casting and using equipment thereof. The invention ensures that the mould has proper water immersion volume before pouring and proper water immersion time after pouring by equipping the mould with a lifting device, wherein the lifting device structurally comprises a water immersion groove body, a fixed plate unit, a rotating plate unit, a sliding plate unit, a motor unit, a hinged support plate unit and a cushion block. The invention has the following advantages: firstly, the water quenching method is suitable for most common impermeable molds with different volumes, and the whole water quenching method has strong applicability; secondly, the lifting equipment for the die can realize easy water quenching depth and time within a certain range, and the practicability is strong; thirdly, the lifting device has the function of adjusting the inclination angle, and the motor with constant traction speed can output different water outlet lifting times of the die.
Description
Technical Field
The invention belongs to the technical field of auxiliary equipment for casting, and particularly relates to a water quenching method for precision casting and using equipment thereof.
Background
In the precision casting process, the mold needs to be cooled by water to ensure that the molten metal in the mold can be rapidly cooled and solidified, otherwise, the risk of ash feeding is increased after a long time, and the water cooling operation on the outside of the mold is water quenching. In addition, more importantly, if the water cooling strength is too high, the unexpected situation that the molten metal is solidified without circulating in place occurs, and therefore the whole casting is directly scrapped.
The existing water quenching method mainly comprises two methods, namely, the mold is soaked in water, and water is sprayed onto the mold, so that the mold is simpler and more economical, and the application range is wider.
However, the greatest problem of the existing immersion type water quenching method is that the water depth of the immersion tank is constant, and a phenomenon of insufficient water quenching area can occur when a larger die is put in, whereas for a smaller die, the water quenching depth is too large, and the cooling strength of the die is too large.
Therefore, a lifting device is required to be additionally arranged in the water immersion tank to adjust the depth of the mold immersed into the water body, so that the proper water quenching strength can be obtained when the molds with different volume specifications and different molten metals are cast.
Patent publication No. is CN210796550U, and the china utility model patent that bulletins day is 2020.06.19 discloses a high tenacity mould molten steel quenches air cooling processing apparatus, the on-line screen storage device comprises a base, all fix on the base both ends and be equipped with the curb plate, the fixed plate that is equipped with on the curb plate, turn right from a left side on the base and fix in proper order and be equipped with aqua storage tank, first water pump, water quenching groove, water catch bowl and second water pump, the input of first water pump lead to pipe with the aqua storage tank is connected, the output of first water pump lead to pipe with the water quenching groove is connected, water quenching groove upper end one side is fixed be equipped with the overflow pipe just the overflow pipe is kept away from water quenching groove one end is located on the water catch bowl.
However, the water quenching tank in the utility model is a simple open tank, so that after the mold is placed in, water needs to be added or drained according to the required water quenching immersion depth, which is very troublesome, and the water quenching operation needs to be added or drained again at every time, which is very time and labor consuming.
Disclosure of Invention
The invention provides a water quenching method for precision casting and a using device thereof, which can ensure that a die has proper water immersion volume before pouring and proper water immersion time after pouring by equipping the die with a lifting device, wherein the lifting device structurally comprises a water immersion groove body, a fixed plate unit, a rotating plate unit, a sliding plate unit, a motor unit, a hinged support plate unit and a cushion block.
The technical scheme adopted by the invention for solving the problems is as follows: a water quenching method for precise casting is characterized in that a mould is placed into a water immersion tank before molten metal is poured, the volume of the mould below the liquid level of the water immersion tank is 40-65% of the total volume of the mould, timing is started after all molten metal is poured, and the time of the whole water quenching operation is 5-6 s.
The equipment used in the water quenching method for precision casting comprises a water immersion tank body, a fixed plate unit arranged on the inner bottom surface of the water immersion tank body, a rotating plate unit with an inclined lower end hinged to the fixed plate unit, a sliding plate unit arranged on the rotating plate unit, a motor unit arranged at the inclined upper end of the rotating plate unit and used for pulling the sliding plate unit, a hinged support plate unit which is hinged to the sliding plate unit, connected with the motor unit and used for keeping a mold horizontal, and a cushion block arranged on the water immersion tank body and used for fixing the rotating plate unit.
The further preferred technical scheme is as follows: the fixing plate unit comprises a bottom plate arranged on the inner bottom surface of the soaking tank body, a vertical plate arranged on the bottom plate, and a first hinge shaft arranged on the vertical plate; the rotating plate unit comprises an inclined plate, a lower end pore canal which is arranged on the inclined plate and is used for inserting the first articulated shaft, and clamping grooves which are respectively arranged on two side surfaces of the inclined plate and are used for clamping and installing the sliding plate unit.
The further preferred technical scheme is as follows: the sliding plate unit comprises an inverted U-shaped plate arranged on the inclined plate, clamping blocks arranged on two inner side surfaces of the inverted U-shaped plate and used for being inserted into the clamping grooves, and side opening grooves arranged on the upper surface of the inverted U-shaped plate and used for installing the hinged support plate unit.
The further preferred technical scheme is as follows: the motor unit comprises a speed reducing motor arranged on the upper surface of the inclined plate and positioned above the water surface, and a rope pulling part arranged between the speed reducing motor and the side groove.
The further preferred technical scheme is as follows: the hinged support plate unit comprises second hinged shafts, two ends of each second hinged shaft are arranged on two inner side surfaces of the side opening groove respectively, a support plate body which is sleeved on the second hinged shafts and used for placing a mold after one side is opened with a hole, and a jacking column part which is arranged on the inner bottom surface of the side opening groove and used for keeping the support plate body in a horizontal state all the time in an upward jacking mode.
The further preferred technical scheme is as follows: the jacking column part comprises a fixed rod arranged on the inner bottom surface of the side groove, a spiral groove arranged on the annular surface of the fixed rod and used for embedding and installing the rope pulling part, and an inverted cylinder body sleeved on the fixed rod and used for jacking the supporting plate body upwards.
The further preferred technical scheme is as follows: the hinge support plate unit further includes two fastening nuts threadedly disposed on the second hinge shaft and clamping and fixing the support plate body adjusted to a horizontal state, and an axial opening disposed on the second hinge shaft and passing through the pull string portion for performing a blocking anti-loosening operation on opposite outer sides of the fastening nuts.
The further preferred technical scheme is as follows: the rope pulling part comprises a clamping rope body, a driving rope body and two limiting rope bodies, wherein one end of the clamping rope body is arranged on the side groove, is wound on the spiral groove and is used for supporting the inverted cylinder, the driving rope body is arranged on the speed reducing motor, and the two ends of the clamping rope body and the driving rope body are respectively connected with each other and respectively penetrate through the two axial holes.
The further preferred technical scheme is as follows: and the lower surface of the cushion block is provided with an anti-skid rubber strip.
The invention has the following advantages: firstly, the water quenching method is suitable for most common impermeable molds with different volumes, and the whole water quenching method has strong applicability; secondly, the lifting equipment for the die can realize easy water quenching depth and time within a certain range, and the practicability is strong; thirdly, the lifting equipment has the function of adjusting the inclination angle, and a motor with constant traction speed can output different water outlet lifting times of the die; fourthly, when the lifting equipment is rotationally adjusted, the mould is always kept horizontal and is not easy to slide; fifthly, the lifting device has high structural stability, good compactness, strong correlation between structures, and simple, efficient, stable and reliable operation in a horizontal state of the die.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the position structure of the fixed plate unit and the rotating plate unit according to the present invention.
Fig. 3 is a schematic view showing the position structure of the sliding plate unit and the hinged support plate unit according to the present invention.
Fig. 4 is a schematic view of the use of the jacking leg portion in the present invention.
Fig. 5 is a schematic view of the use of the fastening nut of the present invention.
Fig. 6 is a schematic view of the structure of the pulling part of the present invention.
In the drawings, the reference numerals denote the following components: the submerged tank comprises a submerged tank body 1, a fixed plate unit 2, a rotating plate unit 3, a sliding plate unit 4, a motor unit 5, a mold a, a hinged support plate unit 6, a cushion block 7, a bottom plate 201, a vertical plate 202, a first hinged shaft 203, an inclined plate 301, a lower end pore passage 302, a clamping groove 303, an inverted U-shaped plate 401, a clamping block 402, a side opening groove 403, a speed reducing motor 501, a rope pulling part 502, a second hinged shaft 602, a support plate body 603, a jacking column part 604, a fixed rod 604a, a spiral groove 604b, an inverted cylinder body 604c, a fastening nut 605, an axial opening 606, a clamping rope body 502a, a driving rope body 502b and a limiting rope body 502 c.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example (b): as shown in attached figures 1-6, in the water quenching method for precision casting, a mould is placed into a water immersion tank before molten metal is poured, the volume of the mould below the liquid level of the water immersion tank is 40-65% of the total volume of the mould, timing is started after the molten metal is completely poured, and the time of the whole water quenching operation is 5-6 s.
An apparatus used in a water quenching method for precision casting comprises a water immersion tank body 1, a fixed plate unit 2 arranged on the inner bottom surface of the water immersion tank body 1, a rotating plate unit 3 with an inclined lower end hinged on the fixed plate unit 2, a sliding plate unit 4 arranged on the rotating plate unit 3, a motor unit 5 arranged on the inclined upper end of the rotating plate unit 3 and used for pulling the sliding plate unit 4, a hinged support plate unit 6 which is hinged on the sliding plate unit 4, connected with the motor unit 5 and used for keeping a mold a horizontal, and a cushion block 7 arranged on the water immersion tank body 1 and used for fixing the rotating plate unit 3.
In this embodiment, the rotating plate unit 3 is kept inclined to ensure that the mold can be immersed in and separated from the water body, and that the mold a can theoretically obtain an immersion volume of 0-100%, where the volume refers to the volume of the outer contour.
The sliding plate unit 4 and the motor unit 5 ensure that the mold a can be taken out and leave the water surface immediately after the water quenching time reaches the standard, but the winding speed of the motor unit 5 cannot be changed, so that the water lifting and pulling time of different molds can be ensured by adjusting the inclination angle of the rotating plate unit 3, namely, when the water needs to be quickly discharged, the rotating plate unit 3 can be relatively more vertical, otherwise, the rotating plate unit is more horizontal.
Finally, the most important point is the hinged support plate unit 6, because the inclination angle of the rotating plate unit 3 needs to be adjusted temporarily according to the actual working condition parameters, if the support plate of the mold is fixedly connected with the rotating plate unit 3, the support plate may be in an inclined state, so that the mold is unstable, and the hinged support plate unit 6 is fixed after rotating by itself, so that the mold a can obtain a horizontal placing effect after the rotating plate unit 3 rotates.
The fixed plate unit 2 comprises a bottom plate 201 arranged on the inner bottom surface of the immersion tank body 1, a vertical plate 202 arranged on the bottom plate 201, and a first articulated shaft 203 arranged on the vertical plate 202; the rotating plate unit 3 includes an inclined plate 301, a lower end hole 302 provided on the inclined plate 301 and through which the first hinge shaft 203 is inserted, and engaging grooves 303 provided on both side surfaces of the inclined plate 301, respectively, and through which the sliding plate unit 4 is engaged and mounted.
The sliding plate unit 4 includes an inverted U-shaped plate 401 disposed on the inclined plate 301, engaging blocks 402 disposed on both inner side surfaces of the inverted U-shaped plate 401 and adapted to be inserted into the engaging grooves 303, and side open grooves 403 disposed on an upper surface of the inverted U-shaped plate 401 and adapted to receive the hinged supporting plate unit 6.
The motor unit 5 includes a reduction motor 501 provided on the upper surface of the inclined plate 301 at a position above the water surface, and a rope portion 502 provided between the reduction motor 501 and the side slot 403. The hinged supporting plate unit 6 comprises a second hinge shaft 602 with two ends respectively arranged on two inner side surfaces of the side opening groove 403, a supporting plate body 603 which is sleeved on the second hinge shaft 602 after one side is opened with a hole and is used for placing a mold a, and a jacking column part 604 which is arranged on the inner bottom surface of the side opening groove 403 and is used for keeping the supporting plate body 603 in a horizontal state all the time in an upward jacking mode.
The jacking leg part 604 includes a fixing rod 604a disposed on the inner bottom surface of the side slot 403, a spiral groove 604b disposed on the annular surface of the fixing rod 604a for inserting and mounting the rope part 502, and an inverted cylinder 604c fitted over the fixing rod 604a for jacking up the supporting plate 603.
In this embodiment, the groove cross-sectional shape of the spiral groove 604b is a major arc with a central angle degree range of 200-320 °, so as to ensure that the pull rope portion 502 is not easily accidentally dropped while being clamped in the spiral groove 604b, and ensure that the pull rope portion 502 protrudes out of the spiral groove 604b to a proper portion for clamping the inverted cylinder 604 c.
The specific use method of the fixing rod 604a is as follows: after the inclined plate 301 is adjusted to a proper vertical speed division of the speed reduction motor 501, if the supporting plate body 603 hangs down away from the hinged end, the spiral groove 604b winds several circles of the rope pulling portion 502 to jack up the inverted cylinder 604c, otherwise, several circles of the rope pulling portion 502 are unfastened to put down the inverted cylinder 604 c.
The hinged support plate unit 6 further comprises two fastening nuts 605 which are threadedly provided on the second hinge shaft 602 and serve to clamp and fix the support plate body 603 which has been adjusted to a horizontal state, and an axial opening 606 which is provided on the second hinge shaft 602 and through which the draw wire portion 502 passes for a blocking anti-loosening operation on the opposite outer side of the fastening nut 605.
In this embodiment, the second hinge shaft 602 is provided with a threaded section, the side surface of the fastening nut 605 is provided with an elastic ring for clamping the support plate 603 adjusted to be horizontal, and the rope portion 502 passes through the axial opening 606, so that the outer side of the fastening nut 605 can have a limiting and anti-loosening effect.
The anti-loosening effect of the stopper here need not be provided, and the rope portion 502 can be generated as soon as it is tightened.
The rope portion 502 includes a clamping rope 502a having one end disposed on the side groove 403 and wound around the spiral groove 604b for supporting the inverted cylinder 604c, a driving rope 502b disposed on the reduction motor 501, and two limiting ropes 502c having two ends connected to the clamping rope 502a and the driving rope 502b, respectively, and passing through the two axial holes 606, respectively. And the lower surface of the cushion block 7 is provided with an anti-skid rubber strip.
In this embodiment, the rope portion 502 is made of a hard steel wire rope.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (10)
1. A water quenching method for precision casting is characterized in that: the mould is placed into a water immersion tank before molten metal is poured, the volume of the mould below the liquid level of the water immersion tank is 40-65% of the total volume of the mould, timing is started after all molten metal is poured, and the time of the whole water quenching operation is 5-6 s.
2. An apparatus for use in a water quenching method for precision casting according to claim 1, characterized in that: including soaking cell body (1), set up fixed plate unit (2) on the bottom surface in soaking cell body (1), the articulated setting of slope lower extreme is in rotor plate unit (3) on fixed plate unit (2), the setting is in sliding plate unit (4) on the rotor plate unit (3), the setting is in rotor plate unit (3) slope upper end and be used for the pulling motor element (5) of sliding plate unit (4), articulated setting is in on sliding plate unit (4) and with motor element (5) are connected and are used for keeping mould (a) horizontally articulated backup pad unit (6), and set up soak on cell body (1) and be used for fixing cushion (7) of rotor plate unit (3).
3. The apparatus for water quenching for precision casting according to claim 2, wherein: the fixing plate unit (2) comprises a bottom plate (201) arranged on the inner bottom surface of the soaking tank body (1), a vertical plate (202) arranged on the bottom plate (201), and a first hinge shaft (203) arranged on the vertical plate (202); the rotating plate unit (3) comprises an inclined plate (301), a lower end duct (302) which is arranged on the inclined plate (301) and is used for inserting the first hinge shaft (203), and clamping grooves (303) which are respectively arranged on two side surfaces of the inclined plate (301) and are used for clamping and installing the sliding plate unit (4).
4. The apparatus for water quenching for precision casting according to claim 3, wherein: the sliding plate unit (4) comprises an inverted U-shaped plate (401) arranged on the inclined plate (301), clamping blocks (402) arranged on two inner side surfaces of the inverted U-shaped plate (401) and used for being inserted into the clamping grooves (303), and side opening grooves (403) arranged on the upper surface of the inverted U-shaped plate (401) and used for installing the hinged support plate unit (6).
5. The apparatus for water quenching for precision casting according to claim 4, wherein: the motor unit (5) comprises a speed reduction motor (501) arranged on the upper surface of the inclined plate (301) and located above the water surface, and a rope pulling portion (502) arranged between the speed reduction motor (501) and the side groove (403).
6. The apparatus for water quenching for precision casting according to claim 5, wherein: articulated backup pad unit (6) include that both ends set up respectively second articulated shaft (602) on two medial surfaces of side fluting (403), cover behind the trompil of one side on second articulated shaft (602) and be used for laying supporting plate body (603) of mould (a), set up in side fluting (403) on the bottom surface and through the mode of upwards jacking up with being used for keeping supporting plate body (603) are in the jack-up post portion (604) of horizontality always.
7. The apparatus for water quenching for precision casting according to claim 6, wherein: the jacking column part (604) comprises a fixing rod (604 a) arranged on the inner bottom surface of the side slot (403), a spiral groove (604 b) arranged on the annular surface of the fixing rod (604 a) and used for embedding and installing the stay wire part (502), and an inverted cylinder body (604 c) sleeved on the fixing rod (604 a) and used for jacking the supporting plate body (603) upwards.
8. The apparatus for water quenching for precision casting according to claim 7, wherein: the hinge support plate unit (6) further comprises two fastening nuts (605) threadedly provided on the second hinge shaft (602) for clamping and fixing the support plate body (603) adjusted to a horizontal state, and an axial opening (606) provided on the second hinge shaft (602) and penetrated by the drawstring portion (502) for a check-up operation at opposite outer sides of the fastening nuts (605).
9. The apparatus for water quenching for precision casting according to claim 8, wherein: the rope pulling part (502) comprises a clamping rope body (502 a) with one end arranged on the side open groove (403), wound on the spiral groove (604 b) and used for supporting the inverted cylinder body (604 c), a driving rope body (502 b) arranged on the speed reducing motor (501), and two limiting rope bodies (502 c) with two ends respectively connected with the clamping rope body (502 a) and the driving rope body (502 b) and respectively passing through the two axial holes (606).
10. The apparatus for water quenching for precision casting according to claim 2, wherein: and the lower surface of the cushion block (7) is provided with an anti-slip rubber strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111241798.5A CN113953492B (en) | 2021-10-25 | 2021-10-25 | Water quenching method for precision casting and using equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111241798.5A CN113953492B (en) | 2021-10-25 | 2021-10-25 | Water quenching method for precision casting and using equipment thereof |
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| CN113953492A true CN113953492A (en) | 2022-01-21 |
| CN113953492B CN113953492B (en) | 2023-02-03 |
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| US20030106665A1 (en) * | 2001-12-06 | 2003-06-12 | Song Shihong Gary | Rapid solidification investment casting |
| JP2011025278A (en) * | 2009-07-24 | 2011-02-10 | Jfe Steel Corp | Adhesion evaluating method to solidified shell of mold powder, and solidification trial examination device in continuous casting mold |
| CN103691910A (en) * | 2014-01-07 | 2014-04-02 | 北京科技大学 | Preparation method of aluminum-coated magnesium composite plate material |
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| Publication number | Publication date |
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| CN113953492B (en) | 2023-02-03 |
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Denomination of invention: A water quenching method for precision casting and its equipment for use Effective date of registration: 20231202 Granted publication date: 20230203 Pledgee: Zhejiang Deqing Rural Commercial Bank Co.,Ltd. Zhongguan sub branch Pledgor: HUZHOU NANFENG MACHINERY MANUFACTURING Co.,Ltd. Registration number: Y2023980068777 |