CN114603116A - Metal casting surface alloy protection process - Google Patents
Metal casting surface alloy protection process Download PDFInfo
- Publication number
- CN114603116A CN114603116A CN202210248982.0A CN202210248982A CN114603116A CN 114603116 A CN114603116 A CN 114603116A CN 202210248982 A CN202210248982 A CN 202210248982A CN 114603116 A CN114603116 A CN 114603116A
- Authority
- CN
- China
- Prior art keywords
- casting
- binder
- alloy powder
- sand
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 74
- 239000000956 alloy Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005058 metal casting Methods 0.000 title claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 55
- 239000000843 powder Substances 0.000 claims abstract description 49
- 239000011230 binding agent Substances 0.000 claims abstract description 47
- 238000005266 casting Methods 0.000 claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000003723 Smelting Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 239000003110 molding sand Substances 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 230000001680 brushing effect Effects 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011241 protective layer Substances 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 244000035744 Hura crepitans Species 0.000 claims description 10
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 10
- 235000013305 food Nutrition 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 9
- 229910000746 Structural steel Inorganic materials 0.000 claims description 5
- 229920002678 cellulose Polymers 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 5
- 238000007796 conventional method Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- FYGDTMLNYKFZSV-MRCIVHHJSA-N dextrin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)OC1O[C@@H]1[C@@H](CO)OC(O[C@@H]2[C@H](O[C@H](O)[C@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O FYGDTMLNYKFZSV-MRCIVHHJSA-N 0.000 claims description 5
- 238000010115 full-mold casting Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229920006284 nylon film Polymers 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000008213 purified water Substances 0.000 claims description 5
- 238000009628 steelmaking Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005275 alloying Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a metal casting surface alloy protection process, belongs to the technical field of casting surface protection, and mainly solves the technical problems that the existing metal casting is poor in performance, short in service life and frequent in replacement, and the existing metal casting surface protection process is easy to cause environmental pollution. The technical scheme of the invention is as follows: a metal casting surface alloy protection process comprises the following steps: 1) manufacturing a precoated sand shell mold; 2) preparing a binder; 3) and (3) binder brushing: 4) alloy powder is sprayed; 5) drying; 6) boxing and modeling; 7) smelting and casting; 8) recovering the molding sand; 9) cleaning, polishing and inspecting the casting. The invention has the advantages of effectively improving the surface performance of the casting, simple process, easy operation and the like.
Description
Technical Field
The invention belongs to the technical field of casting surface protection, and particularly relates to a metal casting surface alloy protection process.
Background
When various machining, heat treatment, transportation and use are carried out on metal castings, the metal castings are often in severe environments, so that the metal castings have the problems of poor performance, short service life, frequent replacement and the like, and the parts are required to have stronger performances of surface rust prevention, oxidation resistance, high temperature resistance and the like. And therefore requires a protective treatment of the surface thereof.
The common casting surface protection treatment technology mainly comprises the following steps: electroplating, oxidation (also called bluing, blackening treatment), phosphorization, etc. In recent years, with the society paying more and more attention to the environmental protection work, the management of the environmental protection department is more and more strict, and especially the strict control of the heavy pollution industries such as metal surface electroplating, bluing, blackening and phosphorization, the application of the heavy pollution industries is severely limited. Therefore, the development of an energy-saving, emission-reducing and environment-friendly casting surface protection process is an urgent problem to be solved in the technical field of casting surface protection.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a metal casting surface alloy protection process, and solves the technical problems that the prior metal casting has poor performance, short service life and frequent replacement, and the prior metal casting surface protection process is easy to cause environmental pollution. In order to solve the problems, the technical scheme of the invention is as follows: a metal casting surface alloy protection process comprises the following steps:
1) manufacturing a precoated sand shell mold: manufacturing a precoated sand shell mold meeting the requirement of a part drawing, and polishing off flash and burrs;
2) preparing a binder: adding 0.5-0.8 part by weight of food grade cellulose, 1.5-2.2 parts by weight of food grade corn dextrin and 97-98 parts by weight of purified water into a stirrer, stirring for 1 hour, and uniformly mixing to obtain a binder;
3) and (3) binder brushing: coating the prepared binder at a position, where an alloy protective layer is required to be formed, in the inner cavity of the precoated sand shell type, and controlling the coating thickness of the binder according to the required thickness of the alloy layer, wherein the coating thickness of the binder is 0.2-0.5 mm;
4) alloy powder spraying: spraying alloy powder to the position of the precoated sand shell type inner cavity where the binder is coated, so that the alloy powder is stuck to the position of the inner cavity of the precoated sand shell type where an alloy protective layer is required to be formed through the binder;
5) drying: moving the precoated sand shell mold coated with the binder and the alloy powder to a drying chamber at the temperature of 60-70 ℃ for baking for 1-2 hours for later use;
6) boxing and modeling: putting the coated sand shell mold dried in the step 5) into a sand box, and carrying out boxing molding according to a conventional vacuum full mold casting process;
7) smelting and casting: smelting molten alloy structural steel by using an induction type medium-frequency electric furnace, and carrying out deoxidation treatment, standing precipitation and transfer casting according to a conventional method for steelmaking by using the medium-frequency induction electric furnace; starting a vacuum negative pressure system before casting, controlling the negative pressure index within the range of-0.040-0.050 MPa, keeping the negative pressure for 3 minutes after casting, cooling for 40-45 minutes, and taking out of the box;
8) recovering the molding sand;
9) cleaning, polishing and inspecting the casting.
Further, the molding sand for boxing and molding in the step 6) is 40-mesh Baozhu sand, the thickness of bottom sand is larger than 200mm, the distance between the periphery of the sand box and the model is larger than 50mm, the distance between the model and the model is larger than 30mm, the nylon film is pressed after twice compaction, the top sand is 80mm, and finally a pouring cup is installed for pouring.
Further, the alloy powder in the step 4) comprises 2-3 parts by weight of nickel-aluminum alloy powder and 97-98 parts by weight of silicon-iron alloy powder; the grade of nickel-aluminum alloy powder is Ni95Al5, the granularity is 500 meshes, and the grade of ferrosilicon alloy powder is FeSi75, the granularity is 300 meshes.
By adopting the technical scheme, the invention combines the existing precoated sand shell manufacturing process and the vacuum negative pressure suction casting process, and the alloy powder is adhered to the position where the alloy protective layer needs to be formed through the adhesive, so that the surface reinforcement of the metal casting can be realized, and the operation is simple and easy. The vacuum negative pressure suction casting process can effectively maintain the alloy powder to be uniformly distributed in the area of a casting needing protection in the casting process, so that the alloy powder is not rolled away and displaced by the casting and mold filling molten steel. Through the technical scheme of the invention, the mechanical part body still keeps the original mechanical performance unchanged, and the surface layer can realize the performances of rust prevention, oxidation resistance, high temperature resistance and the like. The process technology obviously increases the cost performance of the product and prolongs the service life of the part.
Compared with the prior art, the method has the advantages of effectively improving the surface performance of the casting, along with simple process, easy operation and the like.
Drawings
FIG. 1 is a schematic diagram of a wedge clamp in a power transmission apparatus;
FIG. 2 is a schematic cross-sectional view of a wedge wire clamp in a front view, wherein the dashed line indicates an alloy protective layer;
FIG. 3 is a schematic cross-sectional view of a wedge wire clamp in a top view, wherein the dashed line indicates an alloy protective layer;
FIG. 4 is a metallographic structure diagram of the transition position of the alloy protective layer and the casting body.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
Example 1:
a metal casting surface alloy protection process comprises the following steps:
1) manufacturing a precoated sand shell mold: manufacturing a precoated sand shell mold meeting the requirement of a part drawing, and polishing off flash and burrs;
2) preparing a binder: adding 0.5 part by weight of food grade cellulose, 1.5 parts by weight of food grade corn dextrin and 98 parts by weight of purified water into a stirrer, stirring for 1 hour, and uniformly mixing to obtain a binder;
3) and (3) binder brushing: coating the prepared binder at a position, where an alloy protective layer is required to be formed, in the inner cavity of the precoated sand shell type, and controlling the coating thickness of the binder according to the required thickness of the alloy layer, wherein the coating thickness of the binder is 0.2 mm;
4) alloy powder spraying: spraying alloy powder to the position of the precoated sand shell type inner cavity where the binder is coated, so that the alloy powder is stuck to the position of the inner cavity of the precoated sand shell type where an alloy protective layer is required to be formed through the binder; the alloy powder comprises 2 parts by weight of nickel-aluminum alloy powder and 98 parts by weight of ferrosilicon alloy powder; the grade of the nickel-aluminum alloy powder is Ni95Al5, the granularity is 500 meshes, and the grade of the ferrosilicon alloy powder is FeSi75, and the granularity is 300 meshes;
5) drying: moving the precoated sand shell mold coated with the binder and the alloy powder to a drying chamber at the temperature of 60-70 ℃ for baking for 1-2 hours for later use;
6) boxing and modeling: putting the coated sand shell mold dried in the step 5) into a sand box, and carrying out boxing molding according to a conventional vacuum full mold casting process; the molding sand for boxed molding adopts 40-mesh baozhu sand, the thickness of bottom sand is more than 200mm, the distance between the periphery of a sand box and a model is more than 50mm, the distance between the model and the model is more than 30mm, a nylon film is pressed after the two times of compaction, the top sand is 80mm, and finally a sprue cup is installed for casting;
7) smelting and casting: smelting molten alloy structural steel by using an induction type medium-frequency electric furnace, and carrying out deoxidation treatment, standing precipitation and transfer casting according to a conventional method for steelmaking by using the medium-frequency induction electric furnace; starting a vacuum negative pressure system before casting, controlling the negative pressure index within the range of-0.040-0.050 MPa, keeping the negative pressure for 3 minutes after casting, cooling for 40-45 minutes, and taking out of the box;
8) recovering the molding sand;
9) cleaning, polishing and inspecting the casting.
Example 2:
a metal casting surface alloy protection process, wherein: the method comprises the following steps:
1) manufacturing a precoated sand shell mold: manufacturing a precoated sand shell mold meeting the requirement of a part drawing, and polishing off flash and burrs;
2) preparing a binder: adding 0.8 part by weight of food grade cellulose, 2.2 parts by weight of food grade corn dextrin and 97 parts by weight of purified water into a stirrer, stirring for 1 hour, and uniformly mixing to obtain a binder;
3) and (3) binder brushing: coating the prepared binder at a position, where an alloy protective layer is required to be formed, in the inner cavity of the precoated sand shell type, and controlling the coating thickness of the binder according to the required thickness of the alloy layer, wherein the coating thickness of the binder is 0.3 mm;
4) alloy powder spraying: spraying alloy powder to the position of the precoated sand shell type inner cavity where the binder is coated, so that the alloy powder is stuck to the position of the inner cavity of the precoated sand shell type where an alloy protective layer is required to be formed through the binder; the alloy powder comprises 3 parts by weight of nickel-aluminum alloy powder and 97 parts by weight of ferrosilicon alloy powder; the grade of the nickel-aluminum alloy powder is Ni95Al5, the granularity is 500 meshes, and the grade of the ferrosilicon alloy powder is FeSi75, and the granularity is 300 meshes;
5) drying: moving the precoated sand shell mold coated with the binder and the alloy powder to a drying chamber at the temperature of 60-70 ℃ for baking for 1-2 hours for later use;
6) boxing and modeling: putting the coated sand shell mold dried in the step 5) into a sand box, and carrying out boxing molding according to a conventional vacuum full mold casting process; the moulding sand for boxing and moulding adopts 40-mesh Baozhu sand, the thickness of bottom sand is more than 200mm, the distance between the periphery of the sand box and the model is more than 50mm, the distance between the model and the model is more than 30mm, a nylon film is pressed after the model is vibrated for two times, top sand is pushed for 80mm, and finally a sprue cup is installed for casting;
7) smelting and casting: smelting molten alloy structural steel by using an induction type medium-frequency electric furnace, and carrying out deoxidation treatment, standing precipitation and transfer casting according to a conventional method for steelmaking by using the medium-frequency induction electric furnace; starting a vacuum negative pressure system before casting, controlling the negative pressure index within the range of-0.040-0.050 MPa, keeping the negative pressure for 3 minutes after casting, cooling for 40-45 minutes, and taking out of the box;
8) recovering the molding sand;
9) cleaning, polishing and inspecting the casting.
Example 3:
a metal casting surface alloy protection process, wherein: the method comprises the following steps:
1) manufacturing a precoated sand shell mold: manufacturing a precoated sand shell mold meeting the requirement of a part drawing, and polishing off flash and burrs;
2) preparing a binder: adding 0.6 part by weight of food grade cellulose, 1.9 parts by weight of food grade corn dextrin and 97.5 parts by weight of purified water into a stirrer, stirring for 1 hour, and uniformly mixing to obtain a binder;
3) and (3) coating a binder: coating the prepared binder at a position, where an alloy protective layer is required to be formed, in the inner cavity of the precoated sand shell type, and controlling the coating thickness of the binder according to the required thickness of the alloy layer, wherein the coating thickness of the binder is 0.5 mm;
4) alloy powder spraying: spraying alloy powder to the position of the precoated sand shell type inner cavity where the binder is coated, so that the alloy powder is stuck to the position of the inner cavity of the precoated sand shell type where an alloy protective layer is required to be formed through the binder; the alloy powder comprises 2.5 parts by weight of nickel-aluminum alloy powder and 97.5 parts by weight of ferrosilicon alloy powder; the grade of the nickel-aluminum alloy powder is Ni95Al5, the granularity is 500 meshes, and the grade of the ferrosilicon alloy powder is FeSi75, and the granularity is 300 meshes;
5) drying: moving the precoated sand shell mold coated with the binder and the alloy powder to a drying chamber at the temperature of 60-70 ℃ for baking for 1-2 hours for later use;
6) boxing and modeling: putting the coated sand shell mold dried in the step 5) into a sand box, and carrying out boxing molding according to a conventional vacuum full mold casting process; the moulding sand for boxing and moulding adopts 40-mesh Baozhu sand, the thickness of bottom sand is more than 200mm, the distance between the periphery of the sand box and the model is more than 50mm, the distance between the model and the model is more than 30mm, a nylon film is pressed after the model is vibrated for two times, top sand is pushed for 80mm, and finally a sprue cup is installed for casting;
7) smelting and casting: smelting molten alloy structural steel by using an induction type medium-frequency electric furnace, and carrying out deoxidation treatment, standing precipitation and transfer casting according to a conventional method for steelmaking by using the medium-frequency induction electric furnace; starting a vacuum negative pressure system before casting, controlling the negative pressure index within the range of-0.040-0.050 MPa, keeping the negative pressure for 3 minutes after casting, cooling for 40-45 minutes, and taking out of the box;
8) recovering the molding sand;
9) cleaning, polishing and inspecting the casting.
Claims (3)
1. A metal casting surface alloy protection process is characterized in that: the method comprises the following steps:
1) manufacturing a precoated sand shell mold: manufacturing a precoated sand shell mold meeting the requirement of a part drawing, and polishing off flash and burrs;
2) preparing a binder: adding 0.5-0.8 part by weight of food grade cellulose, 1.5-2.2 parts by weight of food grade corn dextrin and 97-98 parts by weight of purified water into a stirrer, stirring for 1 hour, and uniformly mixing to obtain a binder;
3) and (3) binder brushing: coating the prepared binder at a position, where an alloy protective layer is required to be formed, in the inner cavity of the precoated sand shell type, and controlling the coating thickness of the binder according to the required thickness of the alloy layer, wherein the coating thickness of the binder is 0.2-0.5 mm;
4) alloy powder spraying: spraying alloy powder to the position of the precoated sand shell type inner cavity where the binder is coated, so that the alloy powder is stuck to the position of the inner cavity of the precoated sand shell type where an alloy protective layer is required to be formed through the binder;
5) drying: moving the precoated sand shell mold coated with the binder and the alloy powder to a drying chamber at the temperature of 60-70 ℃ for baking for 1-2 hours for later use;
6) boxing and modeling: putting the coated sand shell mold dried in the step 5) into a sand box, and carrying out boxing molding according to a conventional vacuum full mold casting process;
7) smelting and casting: smelting molten alloy structural steel by using an induction type medium-frequency electric furnace, and carrying out deoxidation treatment, standing precipitation and transfer casting according to a conventional method for steelmaking by using the medium-frequency induction electric furnace; starting a vacuum negative pressure system before casting, controlling the negative pressure index within the range of-0.040-0.050 MPa, keeping the negative pressure for 3 minutes after casting, cooling for 40-45 minutes, and taking out of the box;
8) recovering the molding sand;
9) cleaning, polishing and inspecting the casting.
2. A process for alloying a surface of a metal casting according to claim 1, wherein: and 6) adopting 40-mesh Baozhu sand as the moulding sand for boxing and modeling, keeping the thickness of bottom sand larger than 200mm, keeping the distance between the periphery of the sand box and the model larger than 50mm, keeping the distance between the model and the model larger than 30mm, compacting twice, pressing a nylon film, jacking sand by 80mm, and finally installing a pouring cup for later casting.
3. The process of claim 1 for alloy protection of a surface of a metal casting, wherein: the alloy powder in the step 4) comprises 2-3 parts by weight of nickel-aluminum alloy powder and 97-98 parts by weight of ferrosilicon alloy powder; the grade of nickel-aluminum alloy powder is Ni95Al5, the granularity is 500 meshes, and the grade of ferrosilicon alloy powder is FeSi75, the granularity is 300 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248982.0A CN114603116A (en) | 2022-03-14 | 2022-03-14 | Metal casting surface alloy protection process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248982.0A CN114603116A (en) | 2022-03-14 | 2022-03-14 | Metal casting surface alloy protection process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114603116A true CN114603116A (en) | 2022-06-10 |
Family
ID=81863627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210248982.0A Pending CN114603116A (en) | 2022-03-14 | 2022-03-14 | Metal casting surface alloy protection process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114603116A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082631A (en) * | 1962-11-21 | 1967-09-06 | Gerald Robert Bell | Surface protection of castings |
| CN101532134A (en) * | 2009-04-24 | 2009-09-16 | 太原理工大学 | Method for enhancing surface of magnesium aluminium alloy by laser remelting |
| CN104588581A (en) * | 2015-01-20 | 2015-05-06 | 江西弘旺汽车制动器制造有限公司 | Manufacturing method of brake drum |
| CN107755644A (en) * | 2017-10-19 | 2018-03-06 | 南阳飞龙汽车零部件有限公司 | A kind of casting sand type mold cavity surface cure process device and preparation method thereof |
| CN109759540A (en) * | 2019-03-25 | 2019-05-17 | 山东鸿源新材料有限公司 | Used in aluminium alloy casting sand core Quench coating and preparation method thereof |
| CN111545708A (en) * | 2020-05-12 | 2020-08-18 | 唐山昊中科技有限公司 | Negative-pressure casting process for precoated sand shell type iron sand |
-
2022
- 2022-03-14 CN CN202210248982.0A patent/CN114603116A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082631A (en) * | 1962-11-21 | 1967-09-06 | Gerald Robert Bell | Surface protection of castings |
| CN101532134A (en) * | 2009-04-24 | 2009-09-16 | 太原理工大学 | Method for enhancing surface of magnesium aluminium alloy by laser remelting |
| CN104588581A (en) * | 2015-01-20 | 2015-05-06 | 江西弘旺汽车制动器制造有限公司 | Manufacturing method of brake drum |
| CN107755644A (en) * | 2017-10-19 | 2018-03-06 | 南阳飞龙汽车零部件有限公司 | A kind of casting sand type mold cavity surface cure process device and preparation method thereof |
| CN109759540A (en) * | 2019-03-25 | 2019-05-17 | 山东鸿源新材料有限公司 | Used in aluminium alloy casting sand core Quench coating and preparation method thereof |
| CN111545708A (en) * | 2020-05-12 | 2020-08-18 | 唐山昊中科技有限公司 | Negative-pressure casting process for precoated sand shell type iron sand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106001450A (en) | Cylinder sleeve casting technology | |
| CN106001452A (en) | Brake drum casting process | |
| CN102009128A (en) | Metal mold sand-overlying device used for casting lower die of brake drum | |
| CN201913186U (en) | Metal mold sand coating device for casting lower shape of brake drum | |
| CN114603116A (en) | Metal casting surface alloy protection process | |
| CN105170884A (en) | Manufacturing method for surface strengthened layer of abrasion-resistant cast ball production die and die provided with surface strengthened layer | |
| CN102371346A (en) | Casting method of wheel hub of wind turbine generator | |
| CN206746715U (en) | Wear-resisting composite liner | |
| CN101161370A (en) | A mould for manufacturing spheroidal graphite cast iron crankshaft | |
| CN113042689A (en) | Casting process of ferrous metal casting | |
| CN1262372C (en) | Double metal combining method in sand mould | |
| CN112916804A (en) | Casting process for integrally casting large nodular cast iron impeller of vacuum pump | |
| CN101628307B (en) | Double-metal straightening roller and manufacturing process thereof | |
| CN2873458Y (en) | Metal ceramic composite emery wheel mold | |
| CN102476168A (en) | Covering shell modeling process | |
| CN111992664A (en) | Nodular cast iron surface chromium white wear-resistant casting process | |
| CN103949581A (en) | Production method of automobile brake disc | |
| CN202779643U (en) | Steel-iron composite steel ingot mold | |
| CN210231440U (en) | Sand lined metal mold casting mould structure | |
| CN219254072U (en) | Pipe die for centrifugal casting and centrifugal casting equipment | |
| CN219274396U (en) | Casting die of stainless steel impeller | |
| CN212525984U (en) | Centrifugal casting metal mould | |
| CN210877408U (en) | ESR base metal forming die of steel highlight inner wall | |
| CN1190703A (en) | Double-metal wear-resistant board for concrete pump and making method thereof | |
| CN212598711U (en) | A portable ingate for disappearing mould casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |