CN105671388A - Low-voltage power grid distribution box - Google Patents
Low-voltage power grid distribution box Download PDFInfo
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- CN105671388A CN105671388A CN201610232394.2A CN201610232394A CN105671388A CN 105671388 A CN105671388 A CN 105671388A CN 201610232394 A CN201610232394 A CN 201610232394A CN 105671388 A CN105671388 A CN 105671388A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
- C23C8/30—Carbo-nitriding
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Plasma & Fusion (AREA)
- Power Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Provided is a low-voltage power grid distribution box. The low-voltage power grid distribution box comprises a box body made of multiple magnesium alloy sheets. The magnesium alloy is adopted by the low-voltage power grid distribution box, and by means of the magnesium alloy, the strength requirement of the box body is guaranteed; by means of the proper thickness, the overall shielding effect of the distribution box is improved; a multi-step rolling technology is adopted, not only is the forming efficiency improved, but also the magnesium alloy structure can be uniform.
Description
Technical field
The present invention relates to a kind of low voltage electric network distribution box, belongs to electric power network technique field.
Background technology
Distribution box may refer to again act on for electrical network distribution, electric energy conversion and control or protection etc., and distribution box body, as the effect ingredient of high voltage power distributing cabinet, plays very important status equally. But in every day use process, find some shortcomings part: the poor corrosion resistance of casing, service life is short, and anti-jamming effectiveness is poor, and the normal operation for equipment exists risk, and serious may result in equipment fault.
Summary of the invention
A kind of low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi3-4%, Sn1-2%, Ag0.7-0.8%, Fe0.4-0.5%, Cu0.3-0.4%, Ta0.05-0.06%, Al0.03-0.04%, Y0.01-0.02%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C; After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by Acetylenogen. 20-30 part, calcium chloride 10-20 part, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 400-410 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage; Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%; Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s; Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 60-70 part, two chromium boride 40-50 parts, nikel powder 40-50 part, boron carbide 10-15 part, yittrium oxide 5 parts, lanthana 5 parts
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, carries out welding by polylith magnesium alloy plate afterwards and obtains casing.
Described a kind of low voltage electric network distribution box, refining agent is by 20 parts of Acetylenogen., 10 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition.
Described a kind of low voltage electric network distribution box, refining agent is by 30 parts of Acetylenogen., 20 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition.
Described a kind of low voltage electric network distribution box, refining agent is by 25 parts of Acetylenogen., 15 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition.
Described a kind of low voltage electric network distribution box, detonation flame spraying material powder includes: titanium nitride 60 parts, two chromium borides 40 parts, nikel powder 40 parts, boron carbide 10 parts, yittrium oxide 5 parts, lanthana 5 parts.
Described a kind of low voltage electric network distribution box, detonation flame spraying material powder includes: titanium nitride 70 parts, two chromium borides 50 parts, nikel powder 50 parts, boron carbide 15 parts, yittrium oxide 5 parts, lanthana 5 parts.
Described a kind of low voltage electric network distribution box, detonation flame spraying material powder includes: titanium nitride 65 parts, two chromium borides 45 parts, nikel powder 45 parts, boron carbide 13 parts, yittrium oxide 5 parts, lanthana 5 parts.
Described a kind of low voltage electric network distribution box, when temperature is 410 DEG C, insulation carries out solution treatment in 2 hours.
Described a kind of low voltage electric network distribution box, when temperature is 400 DEG C, insulation carries out solution treatment in 2 hours.
Described a kind of low voltage electric network distribution box, when temperature is 405 DEG C, insulation carries out solution treatment in 2 hours.
A kind of manufacture method of low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi3-4%, Sn1-2%, Ag0.7-0.8%, Fe0.4-0.5%, Cu0.3-0.4%, Ta0.05-0.06%, Al0.03-0.04%, Y0.01-0.02%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C; After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by Acetylenogen. 20-30 part, calcium chloride 10-20 part, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 400-410 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage; Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%; Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s;Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 60-70 part, two chromium boride 40-50 parts, nikel powder 40-50 part, boron carbide 10-15 part, yittrium oxide 5 parts, lanthana 5 parts
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, afterwards polylith magnesium alloy plate is carried out welding and obtain casing, casing and low voltage electric network distribution box door and other distribution box parts are assembled obtain low voltage electric network distribution box afterwards.
Weld after sheet material is carried out cutting.
Distribution box also includes distribution box door, and it can be manufactured by magnesium alloy.
Distribution box can also offer thermovent on casing.
Foregoing invention content having the beneficial effects that relative to prior art: 1) low voltage electric network distribution box of the present invention adopts magnesium alloy, magnesium alloy to ensure that the requirement of strength of casing, and suitable thickness improves distribution box bulk shielding effect; 2) multi-step rolling mill practice is adopted to not only increase the shaping efficiency of sheet material, and Magnesium Alloy can be made uniform, 3) detonation flame spraying powder applying coating can ensure that casing has better shielding and interference free performance, can reduce again product cost, 4) tungsten carbide system coating can improve the fire protecting performance insulating properties weather resistance of product and ensure the service life of material; 5) magnesium alloy plate carries out the process of carbo-nitriding operation and improves surface strength and the insulating properties of material.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now describe the specific embodiment of the present invention in detail.
Embodiment 1
A kind of low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi3%, Sn1%, Ag0.7%, Fe0.4%, Cu0.3%, Ta0.05%, Al0.03%, Y0.01%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C; After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by 20 parts of Acetylenogen., 10 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 410 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage; Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%;Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s; Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 60 parts, two chromium borides 40 parts, nikel powder 40 parts, boron carbide 10 parts, yittrium oxide 5 parts, lanthana 5 parts,
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, carries out welding by polylith magnesium alloy plate afterwards and obtains casing.
Embodiment 2
A kind of low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi4%, Sn2%, Ag0.8%, Fe0.5%, Cu0.4%, Ta0.06%, Al0.04%, Y0.02%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C; After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by 30 parts of Acetylenogen., 20 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 403 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage; Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%; Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s; Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 70 parts, two chromium borides 50 parts, nikel powder 50 parts, boron carbide 15 parts, yittrium oxide 5 parts, lanthana 5 parts,
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, carries out welding by polylith magnesium alloy plate afterwards and obtains casing.
Embodiment 3
A kind of low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi3.5%, Sn1.5%, Ag0.75%, Fe0.45%, Cu0.35%, Ta0.055%, Al0.035%, Y0.015%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C;After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by 25 parts of Acetylenogen., 15 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 408 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage; Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%; Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s; Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 65 parts, two chromium borides 45 parts, nikel powder 45 parts, boron carbide 13 parts, yittrium oxide 5 parts, lanthana 5 parts,
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, carries out welding by polylith magnesium alloy plate afterwards and obtains casing.
Embodiment 4
A kind of low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi3.3%, Sn1.1%, Ag0.72%, Fe0.41%, Cu0.32%, Ta0.053%, Al0.033%, Y0.014%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C; After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by 23 parts of Acetylenogen., 12 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 410 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage;Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%; Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s; Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 63 parts, two chromium borides 44 parts, nikel powder 43 parts, boron carbide 11 parts, yittrium oxide 5 parts, lanthana 5 parts,
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, carries out welding by polylith magnesium alloy plate afterwards and obtains casing.
Embodiment 5
A kind of low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi3.7%, Sn1.8%, Ag0.78%, Fe0.49%, Cu0.38%, Ta0.057%, Al0.037%, Y0.016%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C; After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by 27 parts of Acetylenogen., 18 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 405 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage; Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%; Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s; Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 67 parts, two chromium borides 46 parts, nikel powder 48 parts, boron carbide 14 parts, yittrium oxide 5 parts, lanthana 5 parts,
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, carries out welding by polylith magnesium alloy plate afterwards and obtains casing.
Claims (10)
1. a low voltage electric network distribution box, low voltage electric network distribution box includes the casing being made up of polylith magnesium alloy plate, it is characterised in that, the manufacture method of magnesium alloy plate is: magnesium alloy element mass percent consists of: Bi3-4%, Sn1-2%, Ag0.7-0.8%, Fe0.4-0.5%, Cu0.3-0.4%, Ta0.05-0.06%, Al0.03-0.04%, Y0.01-0.02%, surplus is Mg, carries out dispensing according to said components, adding electric induction furnace, temperature controls at 660 DEG C; After raw material fully melts, refining agent is added after being warming up to 680 DEG C, refining agent is by Acetylenogen. 20-30 part, calcium chloride 10-20 part, zinc oxide 5 parts, 3 parts of calcium fluoride composition, skim and be cast into the magnesium alloy ingot that thickness is 8cm afterwards, magnesium alloy ingot is placed in resistance furnace, and when temperature is 400-410 DEG C, insulation carries out solution treatment in 2 hours; Ingot casting is sent in hot-rolling mill and is carried out high temperature rolling, and obtaining thickness is 4-5cm high temperature rolling slab; High temperature rolling temperature is 390 DEG C, high temperature rolling passage 2-3 passage; ; High temperature rolling slab heats 1 hour in the resistance furnace that temperature is 370 DEG C, is then sent in hot-rolling mill by high temperature rolling slab and carries out middle temperature rolling, obtains 1.5-2cm middle temperature rolling slab; Middle temperature rolling temperature is 320 DEG C, middle temperature rolling passage 10-12 passage; Middle temperature rolling slab heats 3 hours in the resistance furnace that temperature is 350 DEG C, then middle temperature rolling slab is carried out cold-rolling treatment, and cold rolling temperature is 220 DEG C; Obtaining thickness is 1-1.1cm magnesium alloy plate,
Afterwards magnesium alloy plate is carried out carbo-nitriding operation: 320 DEG C of carbon potentials 1.0% of temperature and nitrogen gesture 0.3%, insulation 2h, then reduces carbon potential and to 0.7% and raises nitrogen gesture to 0.6%, be incubated 1h, furnace temperature rises to 370 DEG C afterwards, reduces carbon potential and to 0.2% and raises nitrogen gesture to 0.9%; Insulation 2h, air cooling is to room temperature afterwards;
Afterwards towards the surface in casing, magnesium alloy plate being carried out detonation flame spraying, use the gas flow ratio of oxygen and acetylene to range for 1.2: 1, spray distance is 70mm, and gun muzzle diameter is 15mm, and powder feeding rate is 0.3g/s; Detonation frequency is 2 times/s, and each quick-fried spray can produce a diameter and be about the circular coating speckle of 23mm, coating layer thickness 0.4mm, and detonation flame spraying material powder includes: titanium nitride 60-70 part, two chromium boride 40-50 parts, nikel powder 40-50 part, boron carbide 10-15 part, yittrium oxide 5 parts, lanthana 5 parts
Afterwards to magnesium alloy plate towards the surface-coated tungsten carbide system coating outside casing, coating layer thickness 0.3mm, tungsten carbide system coating includes tungsten carbide 1 part, carborundum 0.4 part, nickel oxide 0.1 part, silicon nitride 0.1 part, Fe0.2 part, carries out welding by polylith magnesium alloy plate afterwards and obtains casing.
2. a kind of low voltage electric network distribution box as claimed in claim 1, refining agent is by 20 parts of Acetylenogen., 10 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition.
3. a kind of low voltage electric network distribution box as claimed in claim 1, refining agent is by 30 parts of Acetylenogen., 20 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition.
4. a kind of low voltage electric network distribution box as claimed in claim 1, refining agent is by 25 parts of Acetylenogen., 15 parts of calcium chloride, zinc oxide 5 parts, 3 parts of calcium fluoride composition.
5. a kind of low voltage electric network distribution box as claimed in claim 1, detonation flame spraying material powder includes: titanium nitride 60 parts, two chromium borides 40 parts, nikel powder 40 parts, boron carbide 10 parts, yittrium oxide 5 parts, lanthana 5 parts.
6. a kind of low voltage electric network distribution box as claimed in claim 1, detonation flame spraying material powder includes: titanium nitride 70 parts, two chromium borides 50 parts, nikel powder 50 parts, boron carbide 15 parts, yittrium oxide 5 parts, lanthana 5 parts.
7. a kind of low voltage electric network distribution box as claimed in claim 1, detonation flame spraying material powder includes: titanium nitride 65 parts, two chromium borides 45 parts, nikel powder 45 parts, boron carbide 13 parts, yittrium oxide 5 parts, lanthana 5 parts.
8. a kind of low voltage electric network distribution box as claimed in claim 1, when temperature is 400 DEG C, insulation carries out solution treatment in 2 hours.
9. a kind of low voltage electric network distribution box as claimed in claim 1, when temperature is 410 DEG C, insulation carries out solution treatment in 2 hours.
10. a kind of low voltage electric network distribution box as described in claim 1-9, when temperature is 405 DEG C, insulation carries out solution treatment in 2 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610232394.2A CN105671388A (en) | 2016-04-14 | 2016-04-14 | Low-voltage power grid distribution box |
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| CN201610232394.2A CN105671388A (en) | 2016-04-14 | 2016-04-14 | Low-voltage power grid distribution box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11337324B2 (en) | 2019-05-24 | 2022-05-17 | Asustek Computer Inc. | Manufacturing method of housing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400093A (en) * | 2010-09-15 | 2012-04-04 | 鸿富锦精密工业（深圳）有限公司 | Shell and manufacture method thereof |
| CN104561717A (en) * | 2014-12-04 | 2015-04-29 | 沈阳工业大学 | High-performance heat-resistant cast magnesium alloy and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400093A (en) * | 2010-09-15 | 2012-04-04 | 鸿富锦精密工业（深圳）有限公司 | Shell and manufacture method thereof |
| CN104561717A (en) * | 2014-12-04 | 2015-04-29 | 沈阳工业大学 | High-performance heat-resistant cast magnesium alloy and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11337324B2 (en) | 2019-05-24 | 2022-05-17 | Asustek Computer Inc. | Manufacturing method of housing |
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