CN108213403A - A kind of production method of cast steel water nozzle - Google Patents

A kind of production method of cast steel water nozzle Download PDF

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Publication number
CN108213403A
CN108213403A CN201611134087.7A CN201611134087A CN108213403A CN 108213403 A CN108213403 A CN 108213403A CN 201611134087 A CN201611134087 A CN 201611134087A CN 108213403 A CN108213403 A CN 108213403A
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cast steel
water nozzle
steel water
hours
vitreous silica
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王永江
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Xuzhou Connor Hi-Tech Materials Science And Technology Co Ltd
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Xuzhou Connor Hi-Tech Materials Science And Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/52—Manufacturing or repairing thereof
    • B22D41/54—Manufacturing or repairing thereof characterised by the materials used therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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    • 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
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    • 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
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    • 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • C04B35/64—Burning or sintering processes
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    • 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
    • C04B2235/3821—Boron carbides
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    • 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
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3873—Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
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    • 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
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    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
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    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
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    • C04B2235/6022—Injection moulding

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The invention discloses a kind of production method of cast steel water nozzle, the invention belongs to fused quartz ceramic production of articles field, composition of raw materials that the product uses is produced count by weight percentage：5 10 mesh vitreous silica silicon powders 33 35%, 20 40 mesh vitreous silica silicon powders 33 35%, 60 80 mesh vitreous silica silicon powders 28%, boron carbide 2%, silicon nitride 1%, nanometre glue 0.40%, ammonium persulfate 0.20%, tetramethylethylenediamine 0.20%, polyethylene glycol 200 0.20%；The production method has using series of advantages such as few, simple for process, the pollution-free waste discharge of equipment, good product qualities；Product cast steel water nozzle, with excellent hot property, chemical stability and electrical insulation capability, is used at 1200 DEG C mainly as cast steel casting feed inlet.

Description

A kind of production method of cast steel water nozzle
Technical field
The invention belongs to fused quartz ceramic production of articles field more particularly to one kind using vitreous silica silicon powder as raw material The method for producing cast steel water nozzle.
Background technology
Fused quartz ceramic is a kind of using vitreous silica as raw material, using vitreous silica material made of ceramic production technology Material, its main feature is that：Coefficient of thermal expansion is small, thermal stability is good, electrical insulating property is good, chemerosiveness resistent is good；Quartz-ceramics maximum When advantage is below l1O0 DEG C, intensity increases with the raising of temperature, and during from room temperature to 1100 DEG C, intensity can increase Add 33%, product still can normal use at 1250 DEG C.The major product type of fused quartz ceramic is various, such as glass horizontal steel Change stove Quartz Ceramic Roller, float glass furnace damper block, Float Glass Annealing stove hollow roll, cast steel water nozzle, metal tape Material heat-treatment furnace hollow roll, glass and metallurgical furnace water nozzle, punch, crucible, furnace body, section's sulphur, even section cylinder, stirring rod, material Basin, rotation pipe, coke oven door and tedge liner and insulative inserts, microwave screen, arc-extinguish chamber, efficient batch furnace thermal insulation Device, laser reflector and other optical elements, quartz light sources light reflection and the such as part are absorbed in addition, in guided missile, rocket, thunder Up to etc. also have a small amount of application.The primary raw material that these products use all is vitreous silica silicon powder, and difference is only that silicon is micro- The granularity of powder is different, auxiliary material is different, product shape is different.The present invention is a kind of cast steel water nozzle, and the mouth of a river is specially to use In the cast of steel ingot, gate end when steel ingot is betted, product needs intensity height, high temperature resistant, it is necessary to have has stable high-temperature performance Indeformable, the features such as thermal expansion is small, chemical stability is good, surface is smooth fine and smooth.The pass that product of the present invention intends to solve in production Key technology problem has four, first, the optimum proportioning of the granularity of fused quartz ceramic powder；Second is that the optimal combination of auxiliary material；Third, Large-scale shuttle kiln sintering temperature and sintering time determine.
Invention content
Present invention mainly solves the problem of be to provide a kind of production method of cast steel water nozzle, produce the original that the product uses Expect that weight proportion is：5-10 mesh vitreous silica silicon powder 33-35%, 20-40 mesh vitreous silica silicon powder 33-35%, 60-80 mesh melts Fused silica silicon powder 28%, boron carbide 2%, silicon nitride 1%, nanometre glue 0.40%, ammonium persulfate 0.20%, tetramethylethylenediamine 0.20%, polyethylene glycol 200 0.20%.
The present invention can be achieved through the following technical solutions：
（1）The nanometre glue of formula ratio, ammonium persulfate, tetramethylethylenediamine, polyethylene glycol 200 are first added in into stirring in agitator tank It in tank, is uniformly mixed under room temperature, then 5-10 mesh vitreous silicas silicon powder, the 20-40 mesh vitreous silica silicon of formula ratio is micro- Powder, 60-80 mesh vitreous silicas silicon powder, boron carbide, silicon nitride are sent into ball mill ball milling 2.0-2.2 hours, will be in agitator tank Mixture adds in ball mill after being heated to 30-35 DEG C, blending is uniform；
（2）Material in ball mill is filled into cast steel water nozzle mold, using the method cast molding that shakes in casting, so Pressurization sloughs mold after placing 34-36 hours afterwards, then naturally dry 28-30 hours；
（3）The cast steel water nozzle dried feeding kiln is begun to warm up into heating, first through the time of 1.8-2.2 hours by sintering temperature After 0 DEG C rises to 400 DEG C, then sintering temperature is risen to 1200-1210 DEG C from 400 DEG C within 6 hour time, maintain this temperature Stop heating after 33-34 hours, cast steel water nozzle is obtained after being gradually cooled to room temperature.
The present invention further technical solution be：
Step（3）For coal gas shuttle kiln occurs for the kiln.
Step（3）Sintering temperature in the kiln is 1205 DEG C, and the total time of sintering is 33.5 hours.
The beneficial effects of the invention are as follows：A kind of production method of cast steel water nozzle is provided, which, which has, uses The series of advantages such as few, simple for process, the pollution-free waste discharge of equipment, good product quality；Product cast steel water nozzle is in 1200- With excellent hot property, chemical stability and electrical insulation capability at 1250 DEG C, used mainly as cast steel casting feed inlet.
Specific embodiment
The present invention is further described by following embodiment.
Embodiment 1：
In agitator tank first will account for total amount be 0.40% nanometre glue, 0.20% ammonium persulfate, 0.20% tetramethylethylenediamine, 0.20% polyethylene glycol 200 is added in agitator tank, is uniformly mixed under room temperature, then will account for the 5-10 mesh that total amount is 33-35% Vitreous silica silicon powder accounts for 20-40 mesh vitreous silicas silicon powder that total amount is 33-35%, accounts for the 60-80 mesh melting that total amount is 28% Quartzy silicon powder accounts for boron carbide that total amount is 2%, accounts for the silicon nitride that total amount is 1% and be sent into ball mill ball milling 2.0-2.2 hour, general Mixture in agitator tank adds in ball mill after being heated to 30-35 DEG C, blending is uniform；Material in ball mill is filled into cast steel Water nozzle mold, using the method cast molding shaken in casting, then pressurization sloughs mold after placing 34-36 hours, then Naturally dry 28-30 hours；By the cast steel water nozzle dried feeding kiln begin to warm up heating, first through 1.8-2.2 hours when Between by sintering temperature after 0 DEG C rises to 400 DEG C, then sintering temperature is risen to 1200-1210 DEG C from 400 DEG C within 6 hour time, This temperature is maintained to stop heating after 33-34 hours, cast steel water nozzle is obtained after being gradually cooled to room temperature.
Embodiment 2：
In agitator tank first will account for total amount be 0.40% nanometre glue, 0.20% ammonium persulfate, 0.20% tetramethylethylenediamine, 0.20% polyethylene glycol 200 is added in agitator tank, is uniformly mixed under room temperature, then will account for the 5-10 mesh that total amount is 33-35% Vitreous silica silicon powder accounts for 20-40 mesh vitreous silicas silicon powder that total amount is 33-35%, accounts for the 60-80 mesh melting that total amount is 28% Quartzy silicon powder accounts for boron carbide that total amount is 2%, accounts for the silicon nitride that total amount is 1% and be sent into ball mill ball milling 2.0-2.2 hour, general Mixture in agitator tank adds in ball mill after being heated to 30-35 DEG C, blending is uniform；Material in ball mill is filled into cast steel Water nozzle mold, using the method cast molding shaken in casting, then pressurization sloughs mold after placing 34-36 hours, then Naturally dry 28-30 hours；By the cast steel water nozzle dried feeding kiln begin to warm up heating, first through 1.8-2.2 hours when Between by sintering temperature after 0 DEG C rises to 400 DEG C, then sintering temperature is risen to 1200-1210 DEG C from 400 DEG C within 6 hour time, This temperature is maintained to stop heating after 33-34 hours, cast steel water nozzle is obtained after being gradually cooled to room temperature.
Embodiment 3：
In agitator tank first will account for total amount be 0.40% nanometre glue, 0.20% ammonium persulfate, 0.20% tetramethylethylenediamine, 0.20% polyethylene glycol 200 is added in agitator tank, is uniformly mixed under room temperature, then will account for the 5-10 mesh that total amount is 33-35% Vitreous silica silicon powder accounts for 20-40 mesh vitreous silicas silicon powder that total amount is 33-35%, accounts for the 60-80 mesh melting that total amount is 28% Quartzy silicon powder accounts for boron carbide that total amount is 2%, accounts for the silicon nitride that total amount is 1% and be sent into ball mill ball milling 2.0-2.2 hour, general Mixture in agitator tank adds in ball mill after being heated to 30-35 DEG C, blending is uniform；Material in ball mill is filled into cast steel Water nozzle mold, using the method cast molding shaken in casting, then pressurization sloughs mold after placing 34-36 hours, then Naturally dry 28-30 hours；By the cast steel water nozzle dried feeding kiln begin to warm up heating, first through 1.8-2.2 hours when Between by sintering temperature after 0 DEG C rises to 400 DEG C, then sintering temperature is risen to 1200-1210 DEG C from 400 DEG C within 6 hour time, This temperature is maintained to stop heating after 33-34 hours, cast steel water nozzle is obtained after being gradually cooled to room temperature.

Claims (3)

1. a kind of production method of cast steel water nozzle, composition of raw materials is count by weight percentage：5-10 mesh vitreous silica silicon is micro- Powder 33-35%, 20-40 mesh vitreous silica silicon powder 33-35%, 60-80 mesh vitreous silica silicon powder 28%, boron carbide 2%, silicon nitride 1%th, nanometre glue 0.40%, ammonium persulfate 0.20%, tetramethylethylenediamine 0.20%, polyethylene glycol 200 0.20%；It is characterized in that：
（1）The nanometre glue of formula ratio, ammonium persulfate, tetramethylethylenediamine, polyethylene glycol 200 are first added in into stirring in agitator tank It in tank, is uniformly mixed under room temperature, then 5-10 mesh vitreous silicas silicon powder, the 20-40 mesh vitreous silica silicon of formula ratio is micro- Powder, 60-80 mesh vitreous silicas silicon powder, boron carbide, silicon nitride are sent into ball mill ball milling 2.0-2.2 hours, will be in agitator tank Mixture adds in ball mill after being heated to 30-35 DEG C, blending is uniform；
（2）Material in ball mill is filled into cast steel water nozzle mold, using the method cast molding that shakes in casting, so Pressurization sloughs mold after placing 34-36 hours afterwards, then naturally dry 28-30 hours；
（3）The cast steel water nozzle dried feeding kiln is begun to warm up into heating, first through the time of 1.8-2.2 hours by sintering temperature After 0 DEG C rises to 400 DEG C, then sintering temperature is risen to 1200-1210 DEG C from 400 DEG C within 6 hour time, maintain this temperature Stop heating after 33-34 hours, cast steel water nozzle is obtained after being gradually cooled to room temperature.
2. a kind of production method of cast steel water nozzle according to claim 1, it is characterized in that：Step（3）The kiln Shuttle kiln occurs for coal gas.
3. a kind of production method of cast steel water nozzle according to claim 1, it is characterized in that：Step（3）The kiln Interior sintering temperature is 1205 DEG C, and the total time of sintering is 33.5 hours.
CN201611134087.7A 2016-12-10 2016-12-10 A kind of production method of cast steel water nozzle Pending CN108213403A (en)

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Application publication date: 20180629