CN111889655A - Preparation method of automobile hardware stamping part adopting cold and hot oxidation resistance technology - Google Patents
Preparation method of automobile hardware stamping part adopting cold and hot oxidation resistance technology Download PDFInfo
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- CN111889655A CN111889655A CN202010556909.0A CN202010556909A CN111889655A CN 111889655 A CN111889655 A CN 111889655A CN 202010556909 A CN202010556909 A CN 202010556909A CN 111889655 A CN111889655 A CN 111889655A
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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
- B22D27/18—Measures for using chemical processes for influencing the surface composition of castings, e.g. for increasing resistance to acid attack
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
Abstract
The invention discloses a method for preparing automobile hardware stamping parts by cold and heat oxidation resistance technology, belonging to the hardware technical field, the scheme is that a semiconductor refrigerating sheet is started to respectively refrigerate and heat the upper side and the lower side of a rotary sealing plate, thereby forcing a rubber air bag to expand downwards, promoting adsorption powder to prop up a semicircular rubber sealing sheet and then fly out from a release circular hole, meanwhile, a traction ball is heated and expanded, so that an outer heat insulation box is filled with the traction ball, the adsorption powder is uniformly distributed on the inner wall of a sand mold, the phenomenon of nonuniform distribution of an antioxidant in the casting process of alloy liquid is reduced, electrodes of the semiconductor refrigerating sheet are changed, thereby respectively heating and refrigerating the upper end and the lower end of the rotary sealing plate, water drops can be formed on the inner wall of the sand mold under the action of liquefaction of water vapor, an ice layer can be formed along with continuous refrigeration action, and ice sealing protection is carried out on the adsorption powder, it is also possible to accelerate the cooling of the alloy solution when casting the alloy solution.
Description
Technical Field
The invention relates to the technical field of hardware, in particular to a preparation method of an automobile hardware stamping part with cold and heat oxidation resistance technology.
Background
The automobile repair is a general term of automobile maintenance and repair, that is, a failed automobile is inspected by a technical means to find out a failure reason, and a certain measure is taken to remove the failure and recover to reach a certain performance and safety standard, the automobile repair comprises automobile major repair and automobile minor repair, the automobile major repair refers to the restoration of the good technical condition of the automobile and the complete (or nearly complete) restoration of the automobile life by a method of repairing or replacing any part (including a basic part) of the automobile, and the automobile minor repair refers to the following steps: the frustration of ensuring or restoring operational repairs to the operating capability of a vehicle by replacing or repairing individual parts while a person is seated in the vehicle in preparation for a departure has been found to be frustrating. Sometimes, however, the engine cannot be started, but only for minor problems, and knowing the reasons, the basic knowledge of the vehicle repair can solve the basic problem as soon as possible.
As the name implies, the automobile hardware stamping part is the metal stamping part for forming automobile parts. In the automobile stamping parts, one part of the automobile stamping parts directly becomes automobile parts after being stamped, and the other part of the automobile stamping parts can become the automobile parts after being stamped and further being processed by processes such as welding, machining, painting and the like.
At present, in the process of casting automobile stamping parts, a sand mold needs to be used, but before alloy liquid is poured into the sand mold, a layer of antioxidant needs to be sprayed in the sand mold, and in the actual production process, the phenomenon of nonuniform distribution of the antioxidant can occur, so that the phenomenon of oxidation of the partial surface of a part of hardware stamping parts is easily caused.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a method for preparing an automobile hardware stamping part with cold and hot oxidation resistance technology, the scheme is that a semiconductor refrigerating sheet is started to respectively refrigerate and heat the upper side and the lower side of a rotary sealing plate, so that a rubber air bag is forced to expand downwards, adsorption powder is promoted to prop up a semicircular rubber sealing sheet and fly out of a release circular hole, and meanwhile, a traction ball is heated to expand to fill the outer heat preservation box, so that the adsorption powder is uniformly distributed on the inner wall of a sand mold, the phenomenon of nonuniform antioxidant distribution in the casting process of alloy liquid is reduced, electrodes of the semiconductor sheet are changed, so that the upper end and the lower end of the rotary sealing plate are respectively heated and refrigerated, water drops can be formed on the inner wall of the sand mold under the action of water vapor liquefaction in the presence of cold, and ice layers can be formed under the continuous refrigeration action, the cooling of the alloy solution can be accelerated when the alloy solution is cast while the adsorbed powder is ice-sealed and protected.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A preparation method of an automobile hardware stamping part adopting a cold and hot oxidation resisting technology comprises the following components: 11-15 parts of aluminum powder, 15-21 parts of low-carbon steel, 5-12 parts of silicate, 18-23 parts of copper phosphate, 4-9 parts of boron dioxide and 28-32 parts of iron powder, and the using method comprises the following steps: the method comprises the following steps:
s1, weighing and respectively marking the raw materials, mixing the raw materials with each other, adding the mixture into a high-temperature furnace for melting treatment for 60-90min to obtain mixed alloy liquid;
s2, carrying out heat treatment on the efficient mould to promote the antioxidant to be distributed in the college mould, carrying out cold treatment on the efficient mould, carrying out ice sealing on the antioxidant, pouring the mixed alloy liquid obtained in the step S1 into the efficient mould, wherein the casting temperature is 730-820 ℃, and obtaining a primary hardware product after casting is finished;
s3, adding the antioxidant-passivated hardware primary product into quenching liquid to carry out quenching treatment for 30-60min at the temperature of 380-590 ℃.
Further, the high-efficiency mold in S2 includes an outer thermal insulation box, a sand mold is fixedly connected to the top end of the outer thermal insulation box, a casting hole communicated with the sand mold is drilled at the upper end of the outer thermal insulation box, a rotating sealing plate is rotatably connected to the upper end of the outer thermal insulation box, a lower storage frame is fixedly connected to the bottom end of the rotating sealing plate, a semiconductor refrigerating sheet is embedded in the rotating sealing plate, a rubber air bag located in the lower storage frame is fixedly connected to the bottom end of the rotating sealing plate, a contact circular plate is fixedly connected to one end of the rubber air bag away from the rotating sealing plate, a release circular hole is drilled at the bottom end of the lower storage frame, a pair of semicircular rubber sealing sheets abutting against each other are fixedly connected to the inner wall of the release circular hole, adsorption powder located at the lower side of the contact circular plate is filled in the lower storage frame, an upper storage frame is, the outer heat preservation box, the connecting hose and the upper storage frame are communicated with each other, a plurality of traction balls which are uniformly distributed and positioned outside the sand mold are filled in the outer heat preservation box, the upper side and the lower side of the rotary sealing plate are respectively refrigerated and heated by starting the semiconductor refrigeration sheets, thereby forcing the rubber air bag to expand downwards and pushing the contact round plate to extrude the adsorption powder, thereby promoting the adsorption powder to fly out of the release round hole after ejecting the semicircular rubber sealing sheet, and due to the rise of the temperature in the outer heat preservation box, can promote the expansion of the gas, and the gas enters the upper storage frame after passing through the sand mould and the connecting hose, drives the adsorption powder to be attached to the inner wall of the sand mould along with the flowing of the gas, and simultaneously leads the traction ball to be fully filled in the outer insulation can by means of the thermal expansion of the traction ball, thereby drawing the adsorption powder evenly distributed on the inner wall of the sand mould and reducing the phenomenon of uneven distribution of the antioxidant in the casting process of the alloy liquid.
Furthermore, the traction ball comprises a rubber ball bag, the traction ball is filled with carbon dioxide gas, a magnet ball is arranged in the rubber ball bag, a plurality of connecting ropes which are uniformly distributed are fixedly connected between the magnet ball and the inner wall of the rubber ball bag, the traction ball can be rapidly expanded after being heated and is filled in the outer heat insulation box by arranging the carbon dioxide gas in the traction ball, so that adsorption powder is uniformly distributed on the inner wall of the sand mold, electrodes of the semiconductor refrigeration sheet are changed after the adsorption powder is completely distributed, so that the upper end and the lower end of the rotary sealing plate are respectively heated and refrigerated, water drops can be formed on the inner wall of the sand mold by virtue of the liquefaction effect of water vapor when meeting cold, and the hydrophilicity of the adsorption powder attached to the surface of the inner wall of the sand mold can be improved, the water drops are forced to form a water film and an ice layer can be formed along with the continuous refrigeration effect, the cooling of the alloy solution can be accelerated when the alloy solution is cast while the adsorbed powder is ice-sealed and protected.
Further, a plurality of evenly distributed's of rubber sacculus outer end fixedly connected with burr a little, burr a little is made by the fine hair material, rubber sacculus is made by the rubber material, and through setting up the burr a little that fine hair material made, can be when drawing the ball thermal expansion, through the looks mutual friction of burr a little and rubber sacculus, can produce static, can be when heating in external insulation can, reduce at the in-process that the air flows, dust wherein along with follow the possibility that gets into to make coupling hose block in the coupling hose.
Furthermore, the left end of the outer heat preservation box is provided with a mounting hole, a closed door is mounted in the mounting hole, and the closed door can be conveniently opened to recover the contracted traction balls when the sand mold is refrigerated.
Furthermore, rotate shrouding bottom fixedly connected with and be located the first sealing ring in the lower storage frame outside, the diameter of first sealing ring is greater than the internal diameter in casting hole, through setting up first sealing ring, can seal the air in the outer insulation can, reduces the air in the outer insulation can and is heated the back, from the casting hole and the possibility of rotating the gap leakage between the shrouding.
Further, the rubber air bag outside sets up to the corrugate, the rubber air bag intussuseption is filled with ammonium chloride powder, through set up the rubber air bag to the corrugate and set up ammonium chloride powder in it, can promote it to be heated and then expand downwards to abundant promotion contact plectane downwards.
Furthermore, the outer end of the contact circular plate is fixedly connected with a second sealing ring, the second sealing ring is positioned in the lower storage frame and is in contact with the inner wall of the lower storage frame, and by means of the second sealing ring, the possibility that part of adsorbed powder passes through a gap between the contact circular plate and the inner wall of the lower storage frame to move upwards in the downward movement process of the contact circular plate can be reduced by means of the sealing effect of the second sealing ring.
Further, the adsorption powder is made by the magnetic, the antioxidation layer is coated on the surface of the magnetic, the antioxidation layer is formed by polymerizing antioxidant powder, the antioxidation layer is arranged on the outer layer of the magnetic, the adsorption powder can have magnetism, and the adsorption powder can be promoted to be uniformly distributed on the inner wall of the sand mold under the traction effect of the traction ball.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme is through starting semiconductor refrigeration piece to rotate both sides refrigeration and heating about the shrouding respectively, thereby force the rubber gasbag to expand downwards, and promote adsorbing powder to push up behind the semicircle rubber mounting and fly out in the release hole, simultaneously with the help of drawing ball thermal expansion, make and draw the ball to be full of in with outer insulation can, thereby draw the inner wall at the sand mould of adsorption powder evenly distributed, reduce the phenomenon that the antioxidant distributes inhomogeneously that appears in the alloy liquid casting process, change the electrode of semiconductor refrigeration piece, thereby respectively to rotate the shrouding about both ends heat and refrigerate, thereby meet the effect of cold liquefaction with the help of vapor, can form the water droplet and can form the ice sheet along with the refrigeration effect that lasts at the sand mould inner wall, when carrying out the ice seal protection to adsorption powder, also can accelerate the cooling of alloy solution when casting alloy solution.
(2) The traction ball comprises a rubber ball bag, the traction ball is filled with carbon dioxide gas, a magnet ball is arranged in the rubber ball bag, a plurality of evenly distributed connection ropes are fixedly connected between the magnet ball and the inner wall of the rubber ball bag, the traction ball is internally provided with the carbon dioxide gas, the traction ball can be rapidly expanded after being heated and is full of the outer heat insulation box, so that the inner wall of the sand mold is uniformly distributed by traction and adsorption powder, and the adsorption powder is distributed after finishing.
(3) Rubber sacculus outer end fixedly connected with a plurality of evenly distributed's little burr, little burr is made by the fine hair material, rubber sacculus is made by the rubber material, through setting up the little burr that the fine hair material was made, can be when drawing the ball thermal expansion, through the mutual friction of little burr and rubber sacculus, can produce static, can be when heating in external insulation can, reduce the in-process that flows at the air, dust wherein is along with following the possibility that gets into to make the coupling hose block in the coupling hose.
(4) The left end of the outer heat preservation box is provided with a mounting hole, a sealing door is mounted in the mounting hole, and the sealing door can be conveniently opened to recover the contracted traction balls when the sand mold is internally refrigerated.
(5) Rotate the first sealing ring that shrouding bottom fixedly connected with was located the storage frame outside down, the diameter of first sealing ring is greater than the internal diameter in casting hole, through setting up first sealing ring, can seal the air in the outer insulation can, reduces the air in the outer insulation can and is heated the back, from the casting hole and the possibility of rotating the gap leakage between the shrouding.
(6) The rubber gasbag outside sets to the corrugate, and the rubber gasbag intussuseption is filled with ammonium chloride powder, through set up the rubber gasbag to the corrugate and set up ammonium chloride powder in it, can promote it to be heated and expand downwards to abundant promotion contact plectane downwards.
(7) The outer end of the contact circular plate is fixedly connected with a second sealing ring, the second sealing ring is positioned in the lower storage frame and is in contact with the inner wall of the lower storage frame, and the possibility that part of adsorbed powder passes through a gap between the contact circular plate and the inner wall of the lower storage frame to move upwards in the downward moving process of the contact circular plate can be reduced by means of the sealing effect of the second sealing ring.
(8) The adsorption powder is made by the magnetic powder, and the antioxidation layer is coated on the surface of the magnetic powder and is formed by polymerizing antioxidant powder, and the antioxidation layer is arranged on the outer layer of the magnetic powder, so that the adsorption powder has magnetism, and the adsorption powder can be promoted to be uniformly distributed on the inner wall of the sand mould by virtue of the traction effect of the traction ball.
Drawings
FIG. 1 is a cross-sectional view of the entirety of the present invention;
FIG. 2 is a cross-sectional view of a lower tank portion of the present invention;
FIG. 3 is a cross-sectional view of a traction ball segment of the present invention;
FIG. 4 is a cross-sectional view of the inner wall of the sand mold of the present invention as it liquefies upon cooling;
FIG. 5 is a sectional view showing the inner wall of the sand mold of the present invention frozen.
The reference numbers in the figures illustrate:
the device comprises an outer heat preservation box 1, a 101 closed door, a sand mold 2, a casting hole 3, a rotary sealing plate 4, a lower storage frame 5, a semiconductor refrigerating sheet 6, a rubber air bag 7, a first sealing ring 8, a contact circular plate 9, a second sealing ring 10, a release circular hole 11, a semicircular rubber sealing sheet 12, adsorbed powder 13, an upper storage frame 14, a connecting hose 15, a traction ball 16, a rubber ball bag 17, a magnet ball 18, a connecting rope 19 and micro burrs 20.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
a preparation method of an automobile hardware stamping part adopting a cold and hot oxidation resisting technology comprises the following components: 11-15 parts of aluminum powder, 15-21 parts of low-carbon steel, 5-12 parts of silicate, 18-23 parts of copper phosphate, 4-9 parts of boron dioxide and 28-32 parts of iron powder, and the using method comprises the following steps: the method comprises the following steps:
s1, weighing and respectively marking the raw materials, mixing the raw materials with each other, adding the mixture into a high-temperature furnace for melting treatment for 60-90min to obtain mixed alloy liquid;
s2, carrying out heat treatment on the efficient mould to promote the antioxidant to be distributed in the college mould, carrying out cold treatment on the efficient mould, carrying out ice sealing on the antioxidant, pouring the mixed alloy liquid obtained in the step S1 into the efficient mould, wherein the casting temperature is 730-820 ℃, and obtaining a primary hardware product after casting is finished;
s3, adding the antioxidant-passivated hardware primary product into quenching liquid to carry out quenching treatment for 30-60min at the temperature of 380-590 ℃.
Referring to fig. 1-2, the high-efficiency mold in S2 includes an outer thermal insulation box 1, a sand mold 2 fixedly connected to the inner top end of the outer thermal insulation box 1, a casting hole 3 drilled in the upper end of the outer thermal insulation box 1 and communicated with the sand mold 2, a rotary closing plate 4 rotatably connected to the upper end of the outer thermal insulation box 1, a lower storage frame 5 fixedly connected to the bottom end of the rotary closing plate 4, a semiconductor refrigerating sheet 6 embedded in the rotary closing plate 4, a rubber air bag 7 fixedly connected to the bottom end of the rotary closing plate 4 and located in the lower storage frame 5, a contact circular plate 9 fixedly connected to the end of the rubber air bag 7 far from the rotary closing plate 4, a release circular hole 11 drilled in the bottom end of the lower storage frame 5, a pair of semicircular rubber sealing sheets 12 abutting against each other and fixedly connected to the inner wall of the release circular hole 11, an adsorbing powder 13 filled in the lower storage, a connecting hose 15 is fixedly connected between the upper storage frame 14 and the outer insulation box 1, the connecting hose 15 and the upper storage frame 14 are communicated with each other, a plurality of traction balls 16 which are uniformly distributed and positioned outside the sand mold 2 are filled in the outer insulation box 1, the semiconductor refrigerating sheet 6 is started to respectively refrigerate and heat the upper side and the lower side of the rotary sealing plate 4, so that the rubber air bag 7 is forced to expand downwards, the contact circular plate 9 is pushed to extrude the adsorption powder 13, the adsorption powder 13 is promoted to prop up the semicircular rubber sealing sheet 12 and then fly out from the release circular hole 11, the expansion of gas can be promoted due to the rise of the temperature in the outer insulation box 1, the gas is promoted to enter the upper storage frame 14 after passing through the sand mold 2 and the connecting hose 15, the adsorption powder 13 is driven to be attached to the inner wall of the sand mold 2 along with the flow of the gas, and the traction balls 16 are heated to expand, so that, thereby drawing the adsorption powder 13 to be evenly distributed on the inner wall of the sand mould 2 and reducing the phenomenon of uneven distribution of the antioxidant in the casting process of the alloy liquid.
Referring to fig. 1-5, the traction ball 16 includes a rubber ball bag 17, the traction ball 16 is filled with carbon dioxide gas, a magnet ball 18 is disposed in the rubber ball bag 17, a plurality of evenly distributed connecting ropes 19 are fixedly connected between the magnet ball 18 and the inner wall of the rubber ball bag 17, the carbon dioxide gas is disposed in the traction ball 16, the traction ball 16 can be rapidly expanded after being heated and fills the outer insulation can 1, thereby drawing the adsorbed powder 13 evenly distributed on the inner wall of the sand mold 2, and after the adsorbed powder 13 is distributed, the electrode of the semiconductor refrigeration sheet 6 is changed, thereby respectively heating and refrigerating the upper and lower ends of the rotary seal plate 4, so that water drops can be formed on the inner wall of the sand mold 2 by the liquefaction of water vapor, and by the adsorbed powder 13 attached on the surface of the inner wall of the sand mold 2, the hydrophilicity of the inner wall of the sand mold 2 can be improved, the water drops are forced to form a water film and an ice layer can be formed with, the cooling of the alloy solution can be accelerated when the alloy solution is cast, while the adsorption powder 13 is ice-sealed and protected.
Referring to fig. 3, the outer end of the rubber balloon 17 is fixedly connected with a plurality of micro burrs 20 which are uniformly distributed, the micro burrs 20 are made of a fluff material, the rubber balloon 17 is made of a rubber material, and by arranging the micro burrs 20 made of the fluff material, when the traction ball 16 is heated and expanded, static electricity can be generated by mutual friction between the micro burrs 20 and the rubber balloon 17, so that when the external heat insulation box 1 is heated, the possibility that dust in the air flows along with the dust into the connecting hose 15 to block the connecting hose 15 is reduced.
Referring to fig. 1-2, the left end of the outer thermal insulation box 1 is drilled with a mounting hole, a sealing door 101 is installed in the mounting hole, the sealing door 101 is arranged to facilitate opening of the sealing door 101 to recover the contracted traction ball 16 when the sand mold 2 is cooled, the bottom end of the rotary sealing plate 4 is fixedly connected with a first sealing ring 8 positioned on the outer side of the lower storage frame 5, the diameter of the first sealing ring 8 is larger than the inner diameter of the casting hole 3, the first sealing ring 8 is arranged to seal the air in the outer thermal insulation box 1, so as to reduce the possibility of leakage from the gap between the casting hole 3 and the rotary sealing plate 4 after the air in the outer thermal insulation box 1 is heated, the outer side of the rubber air bag 7 is arranged in a corrugated shape, the rubber air bag 7 is filled with ammonium chloride powder, and the rubber air bag 7 is arranged in a corrugated shape and provided with ammonium chloride powder therein, so as to promote the rubber air, thereby fully pushing the contact circular plate 9 downwards, the outer end of the contact circular plate 9 is fixedly connected with a second sealing ring 10, the second sealing ring 10 is positioned in the lower storage frame 5 and is contacted with the inner wall of the lower storage frame 5, the possibility that part of the adsorption powder 13 passes through a gap between the contact circular plate 9 and the inner wall of the lower storage frame 5 to move upwards in the downward moving process of the contact circular plate 9 can be reduced by the aid of the sealing effect of the second sealing ring 10 by the arrangement of the second sealing ring 10, the adsorption powder 13 is made of magnetic powder, the surface of the magnetic powder is coated with an oxidation resistant layer, the oxidation resistant layer is formed by polymerization of antioxidant powder, the adsorption powder 13 can be made to have magnetism by the arrangement of the oxidation resistant layer on the outer layer of the magnetic powder, and the adsorption powder 13 can be promoted to be uniformly distributed on the inner.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (9)
1. A preparation method of an automobile hardware stamping part adopting a cold and hot oxidation resisting technology is characterized by comprising the following steps of: comprises the following components: 11-15 parts of aluminum powder, 15-21 parts of low-carbon steel, 5-12 parts of silicate, 18-23 parts of copper phosphate, 4-9 parts of boron dioxide and 28-32 parts of iron powder, and the using method comprises the following steps: the method comprises the following steps:
s1, weighing and respectively marking the raw materials, mixing the raw materials with each other, adding the mixture into a high-temperature furnace for melting treatment for 60-90min to obtain mixed alloy liquid;
s2, carrying out heat treatment on the efficient mould to promote the antioxidant to be distributed in the college mould, carrying out cold treatment on the efficient mould, carrying out ice sealing on the antioxidant, pouring the mixed alloy liquid obtained in the step S1 into the efficient mould, wherein the casting temperature is 730-820 ℃, and obtaining a primary hardware product after casting is finished;
s3, adding the antioxidant-passivated hardware primary product into quenching liquid to carry out quenching treatment for 30-60min at the temperature of 380-590 ℃.
2. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology according to claim 1, is characterized in that: the efficient mold in the S2 comprises an outer heat preservation box (1), a sand mold (2) is fixedly connected to the inner top end of the outer heat preservation box (1), a casting hole (3) communicated with the sand mold (2) is formed in the upper end of the outer heat preservation box (1), a rotary sealing plate (4) is rotatably connected to the upper end of the outer heat preservation box (1), a lower storage frame (5) is fixedly connected to the bottom end of the rotary sealing plate (4), a semiconductor refrigerating sheet (6) is embedded in the rotary sealing plate (4), a rubber air bag (7) located in the lower storage frame (5) is fixedly connected to the bottom end of the rotary sealing plate (4), a contact circular plate (9) is fixedly connected to one end, far away from the rotary sealing plate (4), of the rubber air bag (7) is provided with a release circular hole (11) in the bottom end of the lower storage frame (5), and a pair of semicircular rubber sealing sheets (12) which, lower storage frame (5) intussuseption is filled with adsorption powder (13) that are located contact plectane (9) downside, rotate shrouding (4) upper end fixedly connected with and store frame (14), go up fixedly connected with coupling hose (15) between storage frame (14) and outer insulation can (1), coupling hose (15) and last storage frame (14) all communicate with each other, outer insulation can (1) intussuseption is filled with a plurality of evenly distributed and is located traction ball (16) in the sand mould (2) outside.
3. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology as claimed in claim 2, is characterized in that: the traction ball (16) comprises a rubber ball bag (17), the traction ball (16) is filled with carbon dioxide gas, a magnet ball (18) is arranged in the rubber ball bag (17), and a plurality of uniformly distributed connecting ropes (19) are fixedly connected between the magnet ball (18) and the inner wall of the rubber ball bag (17).
4. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology according to claim 3, is characterized in that: rubber sacculus (17) outer end fixedly connected with a plurality of evenly distributed's little burr (20), little burr (20) are made by fine hair material, rubber sacculus (17) are made by the rubber material.
5. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology according to claim 1, is characterized in that: the left end of the outer heat preservation box (1) is provided with a mounting hole, and a sealing door (101) is mounted in the mounting hole.
6. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology according to claim 1, is characterized in that: rotate shrouding (4) bottom fixedly connected with and be located first sealing ring (8) in storage frame (5) outside down, the diameter of first sealing ring (8) is greater than the internal diameter of casting hole (3).
7. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology according to claim 1, is characterized in that: the outer side of the rubber air bag (7) is arranged in a corrugated shape, and ammonium chloride powder is filled in the rubber air bag (7).
8. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology according to claim 1, is characterized in that: the outer end of the contact circular plate (9) is fixedly connected with a second sealing ring (10), and the second sealing ring (10) is positioned in the lower storage frame (5) and is in contact with the inner wall of the lower storage frame (5).
9. The preparation method of the automobile hardware stamping part adopting the cold and heat oxidation resistance technology according to claim 1, is characterized in that: the adsorption powder (13) is made of magnetic powder, an anti-oxidation layer is coated on the surface of the magnetic powder, and the anti-oxidation layer is formed by polymerizing antioxidant powder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556909.0A CN111889655A (en) | 2020-06-18 | 2020-06-18 | Preparation method of automobile hardware stamping part adopting cold and hot oxidation resistance technology |
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| CN202010556909.0A CN111889655A (en) | 2020-06-18 | 2020-06-18 | Preparation method of automobile hardware stamping part adopting cold and hot oxidation resistance technology |
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| CN202010556909.0A Withdrawn CN111889655A (en) | 2020-06-18 | 2020-06-18 | Preparation method of automobile hardware stamping part adopting cold and hot oxidation resistance technology |
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| CN (1) | CN111889655A (en) |
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| CN113818024A (en) * | 2021-07-29 | 2021-12-21 | 江苏捷士金金属科技有限公司 | Metal sheet surface rust removal device |
| CN114393800A (en) * | 2022-01-21 | 2022-04-26 | 浙江嘉宬科技股份有限公司 | Injection molding device for plastic products and injection molding process thereof |
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| CN110421764A (en) * | 2019-08-14 | 2019-11-08 | 张良芹 | A kind of polyurethane elastomer product pouring technology |
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| US20080308249A1 (en) * | 2006-01-03 | 2008-12-18 | Adolf Hetke | Metal Casting System, Engineered Molds, Process and Articles Made Thereby |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818024A (en) * | 2021-07-29 | 2021-12-21 | 江苏捷士金金属科技有限公司 | Metal sheet surface rust removal device |
| CN114393800A (en) * | 2022-01-21 | 2022-04-26 | 浙江嘉宬科技股份有限公司 | Injection molding device for plastic products and injection molding process thereof |
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Application publication date: 20201106 |