CN107893193A - A kind of processing technology of valve fire resisting flange - Google Patents

A kind of processing technology of valve fire resisting flange Download PDF

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Publication number
CN107893193A
CN107893193A CN201711127198.XA CN201711127198A CN107893193A CN 107893193 A CN107893193 A CN 107893193A CN 201711127198 A CN201711127198 A CN 201711127198A CN 107893193 A CN107893193 A CN 107893193A
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parts
casting
coating
raw material
degrees celsius
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曹安飞
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/135—Combustion residues, e.g. fly ash, incineration waste
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62222—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic coatings
    • 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
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3839—Refractory metal carbides
    • C04B2235/3847—Tungsten carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/404—Refractory metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

A kind of processing technology the present invention relates to valve with fire resisting flange, belongs to valve arrangement technical field.The processing technology includes (i) melting raw material；(ii) prepared by shell mould；(iii) shell mould is calcined；(iv) pour into a mould；(v) after moulding by casting, treat that casting is cooled to room temperature, carry out the broken formwork demoulding, cut off the insulated feeder of casting afterwards, obtain casting；(vi) casting is forged；(vii) by casting grinding and polishing, casting is placed in industrial detergent cleaning after grinding and buffing；(viii) china coating is coated in cast(ing) surface；(ix) sealing rubber layer is covered on casting, pressure sensor is embedded in sealing rubber layer；(x) the method coating refractory coating for passing through atomizing spraying on the surface of sealing rubber layer.The valve fire resisting flange cast using the ingredient percent of the present invention has the advantages of fire resisting, high temperature resistant, long intensity height and service life.

Description

A kind of processing technology of valve fire resisting flange
Technical field
A kind of processing technology the present invention relates to valve with fire resisting flange, belongs to technical field of pipeline connection.
Background technology
Flange is called ring flange or bead, the part for making pipe be connected with each other with pipe, is connected to pipe end.There is hole on flange Eye, can wear bolt, and the hole for typically referring to open several fixations on the periphery of the metallic object of a similar plate-like is used to connect it Its thing.Existing flange connection is exactly two pipelines, pipe fitting or equipment, is first individually fixed on a ring flange, two Between individual ring flange, plus flange gasket, tightened together with bolt, complete connection.Flange connection is the important company of pipeline construction Mode is connect, flange connection is easy to use, can bear larger pressure, and in industrial pipeline, the use of flange connection is very wide It is general.
Valve is the control unit in fluid delivery system, has cut-off, regulation, water conservancy diversion, prevents adverse current, voltage stabilizing, shunting Or the function such as overflow pressure relief；The application of flange is commonplace in valve, is generally used for the inlet and outlet of connecting valve, at present Valve do not have fire resistance with flange, simple in construction, service life is short.
The content of the invention
The technical problem to be solved in the present invention is, in view of the shortcomings of the prior art, proposing a kind of adding for valve fire resisting flange Work technique.
The present invention is to solve the technical scheme that above-mentioned technical problem proposes to be：A kind of processing work of valve fire resisting flange Skill, comprise the following steps：
(i) melting raw material：
A, dispensing：Valve is with the mass percent of each composition in fire resisting flange：C：0.01-0.02%, Al: 1.15-1.34%, Zn: 0.36-0.58%, Ni：0.26-0.28%, Mo：0.01-0.02%, Ce：0.01-0.03%,Eu：0.01-0.02%,Lu: 0.32-0.46%, Ga：0.05-0.08%, Sn：0.35-0.43%, Zr：0.05-0.07%, Re：0.02-0.04%, magnesia： 0.05-0.07%, surplus Fe；
B, added raw materials into by the mass percent of each composition in predetermined flange in smelting furnace, the temperature in smelting furnace is brought up to 1300 degrees Celsius to 1350 degrees Celsius, raw material is smelted to form alloy solution；
(ii) prepared by shell mould, comprises the following steps that：
A, prepared by wax-pattern：Make consistent with the moulding of valve fire resisting flange and include the wax-pattern of insulated feeder, and to wax-pattern Repaired；
B, shell mould is made on wax-pattern；
C, dewax：Using steam dewaxing, the pressure of steam is 0.5MPa, and the time is 15~25 minutes, and shell mould is made；
(iii) shell mould is calcined
Shell mould is calcined using temperature-gradient method baking modes, in roasting：The programming rate control first before 400 degrees Celsius Make in 200 degrees Celsius/hour, secondly, 50 minutes are incubated at 400 degrees Celsius, then, be warming up to 1300 degrees Celsius at full speed, and protect Hold 1300 degrees Celsius 70 minutes, cooling of finally coming out of the stove；
(iv) pour into a mould
(i) alloy solution that step obtains is poured into a mould into shell mould, during cast, pouring temperature is 1300~1350 degrees Celsius；
(v) after moulding by casting, treat that casting is cooled to room temperature, carry out the broken formwork demoulding, cut off the insulated feeder of casting afterwards, obtain To casting；
(vi) casting is forged, is specially：
Once forge：1000 degrees Celsius of temperature is forged, forges the time 1.5 hours；
It is secondary to forge：900 degrees Celsius of temperature is forged, forges the time 1 hour；
(vii) by casting grinding and polishing, casting is placed in industrial detergent after grinding and buffing, utilizes ultrasonic generator Ultrasonic wave is applied to industrial detergent, the frequency and the sound intensity of ultrasonic wave are 1KHZ~9MHZ and 4~10W/cm respectively2, cleaning 20 Minute；
Wherein：Industrial detergent is made up of the raw material of following each component：Cationic surfactant 3-6 parts, tertiary sodium phosphate 4-8 Part, single stearic acid glycerine lipoprotein 10-13 parts, tasteless turpentine oil 6-10 parts, ethanol 12-15 parts, P-hydroxybenzoic acid 8-15 parts, chlorination Sodium 7-9 parts, water 38-42 parts；
(viii) the mass percent of each composition is in cast(ing) surface coating china coating, china coating：Tungsten carbide：3.67- 3.86%th, kaolin：6.15-7.26%, wollastonite：1.85-2.96%, bone black：5.26-6.75%, chromium：0.2-0.4%, titanium：0.2- 0.5%th, promethium：0.02-0.05%, europium：0.1-0.3%, surplus are clay；
Comprise the following steps that：
A, mixing and ball milling：The raw material of china coating is put into mixing and ball milling instrument by mass percentage and carries out mixing and ball milling, mixes ball The particle diameter of raw material is between 600 mesh after mill；
B, pugging：Add water to mix the raw material of the china coating after mixing and ball milling, the raw material after water will be added to be put into vacuum deairing machine Carry out pugging, vacuum 0.06Mpa；
C, the raw material of the china coating after pugging is coated uniformly on cast(ing) surface, thickness 5-10mm；
D, casting is sent into tunnel cave to fire, china coating is made；
(ix) sealing rubber layer is covered on casting, pressure sensor is embedded in sealing rubber layer；
The raw material composition of sealing rubber layer includes by weight：Diopside：16~18 parts, graphite powder：1~3 part, butylbenzene rubber Glue：15~18 parts, nano mica：11~13 parts, antioxidant 4010NA：1~3 part, silane coupler：2~3 parts, cobalt naphthenate： 11~12 parts, organo montmorillonite：5~9 parts, carbon black：3~5 parts, ethylene propylene diene rubber：27~30 parts；
(x) the method coating refractory coating on the surface of sealing rubber layer by atomizing spraying, coating spraying thickness 1-1.5mm, Solidify and carry out second after 8-12 hours and spray, coating spraying thickness 1.5-2mm, solidify 12-16 hours, valve is made with resistance to Pyrogenic process is blue；
Refractory coating its raw material composition includes by weight：Aluminum oxide：14~16 parts；Zinc oxide：5~8 parts；Coupling agent：5~9 Part；Carbon black：11~13 parts；Clay：17~19 parts；Diatomite：6~8 parts；Coupling agent be vinyl molar fraction be 0.11~ 0.12% methylvinyl organopolysiloxane.
The improvement of above-mentioned technical proposal is：Valve is with the mass percent of each composition in fire resisting flange：C：0.01%, Al: 1.15%,Zn: 0.36%, Ni：0.26%, Mo：0.01%, Ce：0.01%,Eu：0.01%,Lu:0.32%, Ga：0.05%, Sn： 0.35%, Zr：0.05%, Re：0.02%, magnesia：0.05%, surplus Fe.
The improvement of above-mentioned technical proposal is：Valve is with the mass percent of each composition in fire resisting flange：C：0.02%, Al: 1.34%,Zn: 0.58%, Ni：0.28%, Mo：0.02%, Ce：0.03%,Eu：0.02%,Lu:0.46%, Ga：0.08%, Sn： 0.43%, Zr：0.07%, Re：0.04%, magnesia：0.07%, surplus Fe.
It is of the invention to be using the beneficial effect of above-mentioned technical proposal：（1）Cast using the ingredient percent of the present invention Valve fire resisting flange have corrosion-resistant, high temperature resistant, intensity high and the advantages of service life is long；（2）Due to raw material contain Zn, Ni, strengthen the decay resistance of flange, rare earth element also added in raw material, further increase flange mechanical property and Decay resistance（3）The present invention has carried out the secondary mechanical property for forging, substantially increasing flange to casting, extends using the longevity Life；（4）Grinding and buffing so that casting is finer；（5）Casting is cleaned by ultrasonic wave after grinding and buffing, more Increase effect, cleaning is more thorough；（6）Industrial detergent is employed in ultrasonic wave cleaning, effectively eliminates and is difficult to what is cleared up The impurity such as greasy dirt, it ensure that the quality of cleaning；（7）The decay resistance of flange, while china had both been improved by china coating Coating also has certain intensity, protection period length；（8）Sealing rubber layer is covered on casting, is embedded in sealing rubber layer Pressure sensor, while improving the sealing property of flange, sealing situation can also be understood in real time；（9）Invention is in flange Caulking gum layer surface is substantially increased the fire resistance of flange, extended by the method coating refractory coating of atomizing spraying Service life, it ensure that the stabilization of work.
Embodiment
Embodiment one
The processing technology of the valve fire resisting flange of the present embodiment comprises the following steps：
(i) melting raw material：
A, dispensing：Valve is with the mass percent of each composition in fire resisting flange：C：0.01%, Al: 1.15%,Zn: 0.36%, Ni：0.26%, Mo：0.01%, Ce：0.01%,Eu：0.01%,Lu:0.32%, Ga：0.05%, Sn：0.35%, Zr：0.05%, Re： 0.02%, magnesia：0.05%, surplus Fe；
B, added raw materials into by the mass percent of each composition in predetermined flange in smelting furnace, the temperature in smelting furnace is brought up to 1300 degrees Celsius, raw material is smelted to form alloy solution；
(ii) prepared by shell mould, comprises the following steps that：
A, prepared by wax-pattern：Make consistent with the moulding of valve fire resisting flange and include the wax-pattern of insulated feeder, and to wax-pattern Repaired；
B, shell mould is made on wax-pattern；
C, dewax：Using steam dewaxing, the pressure of steam is 0.5MPa, and the time is 15 minutes, and shell mould is made；
(iii) shell mould is calcined
Shell mould is calcined using temperature-gradient method baking modes, in roasting：The programming rate control first before 400 degrees Celsius Make in 200 degrees Celsius/hour, secondly, 50 minutes are incubated at 400 degrees Celsius, then, be warming up to 1300 degrees Celsius at full speed, and protect Hold 1300 degrees Celsius 70 minutes, cooling of finally coming out of the stove；
(iv) pour into a mould
(i) alloy solution that step obtains is poured into a mould into shell mould, during cast, pouring temperature is 1300~1350 degrees Celsius；
(v) after moulding by casting, treat that casting is cooled to room temperature, carry out the broken formwork demoulding, cut off the insulated feeder of casting afterwards, obtain To casting；
(vi) casting is forged, is specially：
Once forge：1000 degrees Celsius of temperature is forged, forges the time 1.5 hours；
It is secondary to forge：900 degrees Celsius of temperature is forged, forges the time 1 hour；
(vii) by casting grinding and polishing, casting is placed in industrial detergent after grinding and buffing, utilizes ultrasonic generator Ultrasonic wave is applied to industrial detergent, the frequency and the sound intensity of ultrasonic wave are 1KHZ~9MHZ and 4~10W/cm respectively2, cleaning 20 Minute；
Wherein：Industrial detergent is made up of the raw material of following each component：Cationic surfactant 3-6 parts, tertiary sodium phosphate 4-8 Part, single stearic acid glycerine lipoprotein 10-13 parts, tasteless turpentine oil 6-10 parts, ethanol 12-15 parts, P-hydroxybenzoic acid 8-15 parts, chlorination Sodium 7-9 parts, water 38-42 parts；
(viii) the mass percent of each composition is in cast(ing) surface coating china coating, china coating：Tungsten carbide：3.67- 3.86%th, kaolin：6.15-7.26%, wollastonite：1.85-2.96%, bone black：5.26-6.75%, chromium：0.2-0.4%, titanium：0.2- 0.5%th, promethium：0.02-0.05%, europium：0.1-0.3%, surplus are clay；
Comprise the following steps that：
A, mixing and ball milling：The raw material of china coating is put into mixing and ball milling instrument by mass percentage and carries out mixing and ball milling, mixes ball The particle diameter of raw material is between 600 mesh after mill；
B, pugging：Add water to mix the raw material of the china coating after mixing and ball milling, the raw material after water will be added to be put into vacuum deairing machine Carry out pugging, vacuum 0.06Mpa；
C, the raw material of the china coating after pugging is coated uniformly on cast(ing) surface, thickness 5-10mm；
D, casting is sent into tunnel cave to fire, china coating is made；
(ix) sealing rubber layer is covered on casting, pressure sensor is embedded in sealing rubber layer；
The raw material composition of sealing rubber layer includes by weight：Diopside：16~18 parts, graphite powder：1~3 part, butylbenzene rubber Glue：15~18 parts, nano mica：11~13 parts, antioxidant 4010NA：1~3 part, silane coupler：2~3 parts, cobalt naphthenate： 11~12 parts, organo montmorillonite：5~9 parts, carbon black：3~5 parts, ethylene propylene diene rubber：27~30 parts；
(x) the method coating refractory coating on the surface of sealing rubber layer by atomizing spraying, coating spraying thickness 1-1.5mm, Solidify and carry out second after 8-12 hours and spray, coating spraying thickness 1.5-2mm, solidify 12-16 hours, valve is made with resistance to Pyrogenic process is blue；
Refractory coating its raw material composition includes by weight：Aluminum oxide：14~16 parts；Zinc oxide：5~8 parts；Coupling agent：5~9 Part；Carbon black：11~13 parts；Clay：17~19 parts；Diatomite：6~8 parts；Coupling agent be vinyl molar fraction be 0.11~ 0.12% methylvinyl organopolysiloxane.
Embodiment two
The valve of the present embodiment processing technology of fire resisting flange, comprises the following steps：
(i) melting raw material：
A, dispensing：Valve is with the mass percent of each composition in fire resisting flange：C：0.02%, Al: 1.34%,Zn: 0.58%, Ni：0.28%, Mo：0.02%, Ce：0.03%,Eu：0.02%,Lu:0.46%, Ga：0.08%, Sn：0.43%, Zr：0.07%, Re： 0.04%, magnesia：0.07%, surplus Fe；
B, added raw materials into by the mass percent of each composition in predetermined flange in smelting furnace, the temperature in smelting furnace is brought up to 1350 degrees Celsius, raw material is smelted to form alloy solution；
(ii) prepared by shell mould, comprises the following steps that：
A, prepared by wax-pattern：Make consistent with the moulding of valve fire resisting flange and include the wax-pattern of insulated feeder, and to wax-pattern Repaired；
B, shell mould is made on wax-pattern；
C, dewax：Using steam dewaxing, the pressure of steam is 0.5MPa, and the time is 25 minutes, and shell mould is made；
(iii) shell mould is calcined
Shell mould is calcined using temperature-gradient method baking modes, in roasting：The programming rate control first before 400 degrees Celsius Make in 200 degrees Celsius/hour, secondly, 50 minutes are incubated at 400 degrees Celsius, then, be warming up to 1300 degrees Celsius at full speed, and protect Hold 1300 degrees Celsius 70 minutes, cooling of finally coming out of the stove；
(iv) pour into a mould
(i) alloy solution that step obtains is poured into a mould into shell mould, during cast, pouring temperature is 1300 degrees Celsius；
(v) after moulding by casting, treat that casting is cooled to room temperature, carry out the broken formwork demoulding, cut off the insulated feeder of casting afterwards, obtain To casting；
(vi) casting is forged, is specially：
Once forge：1000 degrees Celsius of temperature is forged, forges the time 1.5 hours；
It is secondary to forge：900 degrees Celsius of temperature is forged, forges the time 1 hour；
(vii) by casting grinding and polishing, casting is placed in industrial detergent after grinding and buffing, utilizes ultrasonic generator Ultrasonic wave is applied to industrial detergent, the frequency and the sound intensity of ultrasonic wave are 1KHZ~9MHZ and 4~10W/cm respectively2, cleaning 20 Minute；
Wherein：Industrial detergent is made up of the raw material of following each component：Cationic surfactant 3-6 parts, tertiary sodium phosphate 4-8 Part, single stearic acid glycerine lipoprotein 10-13 parts, tasteless turpentine oil 6-10 parts, ethanol 12-15 parts, P-hydroxybenzoic acid 8-15 parts, chlorination Sodium 7-9 parts, water 38-42 parts；
(viii) the mass percent of each composition is in cast(ing) surface coating china coating, china coating：Tungsten carbide：3.67- 3.86%th, kaolin：6.15-7.26%, wollastonite：1.85-2.96%, bone black：5.26-6.75%, chromium：0.2-0.4%, titanium：0.2- 0.5%th, promethium：0.02-0.05%, europium：0.1-0.3%, surplus are clay；
Comprise the following steps that：
A, mixing and ball milling：The raw material of china coating is put into mixing and ball milling instrument by mass percentage and carries out mixing and ball milling, mixes ball The particle diameter of raw material is between 600 mesh after mill；
B, pugging：Add water to mix the raw material of the china coating after mixing and ball milling, the raw material after water will be added to be put into vacuum deairing machine Carry out pugging, vacuum 0.06Mpa；
C, the raw material of the china coating after pugging is coated uniformly on cast(ing) surface, thickness 5-10mm；
D, casting is sent into tunnel cave to fire, china coating is made；
(ix) sealing rubber layer is covered on casting, pressure sensor is embedded in sealing rubber layer；
The raw material composition of sealing rubber layer includes by weight：Diopside：16~18 parts, graphite powder：1~3 part, butylbenzene rubber Glue：15~18 parts, nano mica：11~13 parts, antioxidant 4010NA：1~3 part, silane coupler：2~3 parts, cobalt naphthenate： 11~12 parts, organo montmorillonite：5~9 parts, carbon black：3~5 parts, ethylene propylene diene rubber：27~30 parts；
(x) the method coating refractory coating on the surface of sealing rubber layer by atomizing spraying, coating spraying thickness 1-1.5mm, Solidify and carry out second after 8-12 hours and spray, coating spraying thickness 1.5-2mm, solidify 12-16 hours, valve is made with resistance to Pyrogenic process is blue；
Refractory coating its raw material composition includes by weight：Aluminum oxide：14~16 parts；Zinc oxide：5~8 parts；Coupling agent：5~9 Part；Carbon black：11~13 parts；Clay：17~19 parts；Diatomite：6~8 parts；Coupling agent be vinyl molar fraction be 0.11~ 0.12% methylvinyl organopolysiloxane.
The present invention is not limited to above-described embodiment.All technical schemes formed using equivalent substitution, all falling within the present invention will The protection domain asked.

Claims (3)

  1. A kind of 1. valve processing technology of fire resisting flange, it is characterised in that:Comprise the following steps：
    (i) melting raw material：
    A, dispensing：The valve is with the mass percent of each composition in fire resisting flange：C：0.01-0.02%, Al: 1.15- 1.34%,Zn: 0.36-0.58%, Ni：0.26-0.28%, Mo：0.01-0.02%, Ce：0.01-0.03%,Eu：0.01- 0.02%,Lu:0.32-0.46%, Ga：0.05-0.08%, Sn：0.35-0.43%, Zr：0.05-0.07%, Re：0.02-0.04%, Magnesia：0.05-0.07%, surplus Fe；
    B, added raw materials into by the mass percent of each composition in predetermined flange in smelting furnace, the temperature in smelting furnace is brought up to 1300 degrees Celsius to 1350 degrees Celsius, raw material is smelted to form alloy solution；
    (ii) prepared by shell mould, comprises the following steps that：
    A, prepared by wax-pattern：Make consistent with the moulding of valve fire resisting flange and include the wax-pattern of insulated feeder, and to wax-pattern Repaired；
    B, shell mould is made on wax-pattern；
    C, dewax：Using steam dewaxing, the pressure of steam is 0.5MPa, and the time is 15~25 minutes, and shell mould is made；
    (iii) shell mould is calcined
    Shell mould is calcined using temperature-gradient method baking modes, in roasting：The programming rate control first before 400 degrees Celsius Make in 200 degrees Celsius/hour, secondly, 50 minutes are incubated at 400 degrees Celsius, then, be warming up to 1300 degrees Celsius at full speed, and protect Hold 1300 degrees Celsius 70 minutes, cooling of finally coming out of the stove；
    (iv) pour into a mould
    (i) alloy solution that step obtains is poured into a mould into shell mould, during cast, pouring temperature is 1300~1350 degrees Celsius；
    (v) after moulding by casting, treat that casting is cooled to room temperature, carry out the broken formwork demoulding, cut off the insulated feeder of casting afterwards, obtain To casting；
    (vi) casting is forged, is specially：
    Once forge：1000 degrees Celsius of temperature is forged, forges the time 1.5 hours；
    It is secondary to forge：900 degrees Celsius of temperature is forged, forges the time 1 hour；
    (vii) by casting grinding and polishing, casting is placed in industrial detergent after grinding and buffing, utilizes ultrasonic generator Ultrasonic wave is applied to the industrial detergent, the frequency and the sound intensity of ultrasonic wave are 1KHZ~9MHZ and 4~10W/cm respectively2, clearly Wash 20 minutes；
    Wherein：The industrial detergent is made up of the raw material of following each component：Cationic surfactant 3-6 parts, tertiary sodium phosphate 4-8 parts, single stearic acid glycerine lipoprotein 10-13 parts, tasteless turpentine oil 6-10 parts, ethanol 12-15 parts, P-hydroxybenzoic acid 8-15 parts, Sodium chloride 7-9 parts, water 38-42 parts；
    (viii) the mass percent of each composition is in cast(ing) surface coating china coating, the china coating：Tungsten carbide：3.67- 3.86%th, kaolin：6.15-7.26%, wollastonite：1.85-2.96%, bone black：5.26-6.75%, chromium：0.2-0.4%, titanium：0.2- 0.5%th, promethium：0.02-0.05%, europium：0.1-0.3%, surplus are clay；
    Comprise the following steps that：
    A, mixing and ball milling：The raw material of china coating is put into mixing and ball milling instrument by the mass percent and carries out mixing and ball milling, is mixed The particle diameter of raw material is between 600 mesh after conjunction ball milling；
    B, pugging：Add water to mix the raw material of the china coating after mixing and ball milling, the raw material after water will be added to be put into vacuum deairing machine Carry out pugging, vacuum 0.06Mpa；
    C, the raw material of the china coating after pugging is coated uniformly on cast(ing) surface, thickness 5-10mm；
    D, casting is sent into tunnel cave to fire, china coating is made；
    (ix) sealing rubber layer is covered on casting, pressure sensor is embedded in sealing rubber layer；
    The raw material composition of the sealing rubber layer includes by weight：Diopside：16~18 parts, graphite powder：1~3 part, butylbenzene Rubber：15~18 parts, nano mica：11~13 parts, antioxidant 4010NA：1~3 part, silane coupler：2~3 parts, aphthenic acids Cobalt：11~12 parts, organo montmorillonite：5~9 parts, carbon black：3~5 parts, ethylene propylene diene rubber：27~30 parts；
    (x) the method coating refractory coating on the surface of sealing rubber layer by atomizing spraying, coating spraying thickness 1-1.5mm, Solidify and carry out second after 8-12 hours and spray, coating spraying thickness 1.5-2mm, solidify 12-16 hours, valve is made with resistance to Pyrogenic process is blue；
    The refractory coating its raw material composition includes by weight：Aluminum oxide：14~16 parts；Zinc oxide：5~8 parts；Coupling agent： 5~9 parts；Carbon black：11~13 parts；Clay：17~19 parts；Diatomite：6~8 parts；The coupling agent is that vinyl molar fraction is 0.11~0.12% methylvinyl organopolysiloxane.
  2. 2. the valve according to claim 1 processing technology of fire resisting flange, it is characterised in that:The resistance to pyrogenic process of the valve The mass percent of each composition is in orchid：C：0.01%, Al: 1.15%,Zn: 0.36%, Ni：0.26%, Mo：0.01%, Ce： 0.01%,Eu：0.01%,Lu:0.32%, Ga：0.05%, Sn：0.35%, Zr：0.05%, Re：0.02%, magnesia：0.05%, it is remaining Measure as Fe.
  3. 3. the valve according to claim 1 processing technology of fire resisting flange, it is characterised in that:The resistance to pyrogenic process of the valve The mass percent of each composition is in orchid：C：0.02%, Al: 1.34%,Zn: 0.58%, Ni：0.28%, Mo：0.02%, Ce： 0.03%,Eu：0.02%,Lu:0.46%, Ga：0.08%, Sn：0.43%, Zr：0.07%, Re：0.04%, magnesia：0.07%, it is remaining Measure as Fe.
CN201711127198.XA 2017-11-15 2017-11-15 A kind of processing technology of valve fire resisting flange Pending CN107893193A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110231270A (en) * 2019-06-05 2019-09-13 东南大学 A kind of concrete gas radial penetration performance test device and method
CN113957334A (en) * 2021-09-10 2022-01-21 江阴市东泰管件有限公司 High-strength conversion flange and processing technology thereof
CN114700682A (en) * 2020-09-09 2022-07-05 北京盛维华科技有限公司 Hydraulic multi-way valve casting process

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CN102851609A (en) * 2012-05-23 2013-01-02 江阴市恒润重工股份有限公司 Material used in offshore wind power equipment, and workpiece manufacturing process
CN103045960A (en) * 2012-12-21 2013-04-17 无锡市华尔泰机械制造有限公司 Flange for wind power drum and manufacturing technique thereof
CN104004971A (en) * 2014-05-09 2014-08-27 无锡市华尔泰机械制造有限公司 Alloy material flange and forging technology thereof
CN104195570A (en) * 2014-08-27 2014-12-10 南京创贝高速传动机械有限公司 Treatment process for improving corrosion resistance of bearing
CN106247058A (en) * 2016-07-29 2016-12-21 盐城丰工机械有限公司 A kind of multi-pipeline adpting flange

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CN102433503A (en) * 2011-12-16 2012-05-02 江阴同庆机械制造有限公司 Wind power flange alloy steel and preparation technology of parts thereof
CN102851609A (en) * 2012-05-23 2013-01-02 江阴市恒润重工股份有限公司 Material used in offshore wind power equipment, and workpiece manufacturing process
CN103045960A (en) * 2012-12-21 2013-04-17 无锡市华尔泰机械制造有限公司 Flange for wind power drum and manufacturing technique thereof
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110231270A (en) * 2019-06-05 2019-09-13 东南大学 A kind of concrete gas radial penetration performance test device and method
CN114700682A (en) * 2020-09-09 2022-07-05 北京盛维华科技有限公司 Hydraulic multi-way valve casting process
CN113957334A (en) * 2021-09-10 2022-01-21 江阴市东泰管件有限公司 High-strength conversion flange and processing technology thereof

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Application publication date: 20180410