CN109759543A - A kind of copper casted sculpture method for casting production - Google Patents
A kind of copper casted sculpture method for casting production Download PDFInfo
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- CN109759543A CN109759543A CN201910008727.7A CN201910008727A CN109759543A CN 109759543 A CN109759543 A CN 109759543A CN 201910008727 A CN201910008727 A CN 201910008727A CN 109759543 A CN109759543 A CN 109759543A
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Abstract
The present invention relates to a kind of copper casted sculpture method for casting production, belong to craftwork production technology field, the copper casted sculpture method for casting production copper casted sculpture method for casting production controls mould material formula, mould preparation material formula is lowered in condition of different temperatures, wax-pattern temperature change is avoided to expand or shrink, there is wax-pattern broken the case where bouncing back, simultaneously during Baking, in a manner of controlling maturing temperature, delayed-type shell transformation time, avoid the expansion of steep temperature rise shell broken, to guarantee going on smoothly for subsequent operation, and obtain fine accurately casting achievement, in casting operation, the present invention selects 62 brass, as cast raw material, 62 brass have stronger intensity processed, with enough hardness and preferable plasticity, it is not likely to produce segregation and loose phenomenon, and welding performance is good, to guarantee the quality of production of copper carving.
Description
Technical field
The invention belongs to craftwork production and processing technology fields, specifically, the present invention relates to a kind of castings of copper casted sculpture
Production method.
Background technique
Copper carving is the important component part of China's building decoration object, with a long history, be can be traced to quotient Zhou Shidai, in modern society
Meeting, copper carving are also the important component part of building decoration object, modern sculpture field, copper carving component shared by ornament this part
More and more important, compared with ancient quotient Zhou Shidai, modern copper carving is typically used as decoration and uses, and the production technology of modern copper carving is to meet
Different decoration demands, volume difference is larger, and with the continuous variation of production requirement, copper carving production technology is also constantly changing,
Recording operation, shell processed in wax pattern, cast all is that copper carves the important link produced, and the processing that wax-pattern records mould material in operation is especially heavy
It wants, the moisture content in mould material, physical property of the wax-pattern under different operation environment is different, wax-pattern quality direct relation copper carving
The subsequent operation of production, influence of the temperature change to wax-pattern are especially prominent；In shell operating process processed, the quality of shell is directly determined
Subsequent copper carving casting operation success or not, shell quality is excessively crisp then easily broken, and shell quality is really up to the mark, is not easy to shell, therefore
Baking operation directly decides the quality of copper carving, in casting operation, the general selection alloy of copper carving casting, though metallic copper
Plasticity is preferable, but easily corrodes, therefore during copper carving casting operation, casting metal should have preferable plasticity, simultaneously
Also to wearability, casting character mobility has required.
Summary of the invention
To solve the problems, such as background technique, the invention discloses a kind of copper casted sculpture method for casting production cast copper carvings
Method for casting production is moulded, the copper casted sculpture method for casting production copper casted sculpture method for casting production controls mould material formula, not
Mould material formula is adjusted under the conditions of synthermal, wax-pattern temperature change is avoided to expand or shrink, and the feelings of the broken retraction of wax-pattern occurs
Condition, while during Baking, in a manner of controlling maturing temperature, delayed-type shell transformation time avoids steep temperature rise type
Shell expansion is broken, and to guarantee going on smoothly for subsequent operation, in casting operation, the present invention selects 62 brass, as cast raw material,
62 brass have stronger intensity processed, have enough hardness and preferable plasticity, are not likely to produce segregation and loose phenomenon, and weld
Connect it is functional, with guarantee copper carving the quality of production.
To achieve the above object, the present invention is achieved through the following technical solutions:
The copper casted sculpture method for casting production mainly comprises the steps that
The first step, design drawing design drawing according to the whole conception of sculpture, according to drawing cast sculpture；
Second step makes mud original text, makes model according to design drawing；
Third step, mold turn over system, and turning over molding jig is the complexity according to works and determines scheme, relatively simple works
Gypsum can be taken to turn over system, complicated will turn over system with silica gel；It is characterized by: the mold turns in system operation, before mold assembling
First get out cast gate, riser, main running channel, branch running channel, ingate, exhaust emit, blind riser, slag trap etc.；
4th step, wax pattern are recorded, and the paraffin melted is poured into the mold made by mold after the completion of turning over system, stone
Mold is dismantled after wax is cooling；It is characterized by: the 4th step wax pattern is recorded in operation, the preparation of mould material is recorded, is used with stone
Wax is the mould material formula of base, i.e. paraffin: 4.9-6.0kg, stearic acid: 0.21-0.28kg, microwax: 0.20-0.26kg, pine
It is fragrant: 0.31-0.75kg, EVA:01.-0.16kg；
5th step, shell processed are from level to level wrapped the wax pattern made with quartz sand, then again with high temperature inside shell
Paraffin is burning-out, it is characterised in that: in the 5th step shell operation, after wax pattern surface smears binder, wraps quartz sand, repeatedly
At least three times, binder is aqua silica solution for operation, and the dewaxing of (1) shell, (2) type are performed the following operation after the completion of quartz sand package
Shell roasting, (3) shell are come out of the stove；Specifically, the dewaxing of (1) shell uses hot water dewaxing's method, tap water, water are filled it up in heating tank
Position must be more than the highest point at electric heater heating position, the ammonium chloride of 2.1-2.9% be added in hot water, it is small that heater shifts to an earlier date 4-5
Shi Jiare, (2) Baking, moist shell dries 1 hour or so within 100 DEG C to heat up, when≤200 DEG C, in shell
Absorption water, pore does not to be discharged and gradually exclude, and the remaining wax for being attached to type chamber also starts to carbonize, if temperature heated up at this time
Fastly, gas instantaneously expands in shell interlayer, it is likely that is split up shell or makes surface layer dilatancy or decortication, so at 200 DEG C
30 ' preferably, organic matter decomposes and oxidation at 200 DEG C -500 DEG C for heat preservation, is present in more than the ginseng of shell ammonium chloride also on 400 DEG C of left sides
Right a large amount of volatilization, 500 degrees Celsius of whens, all remove, but 500 DEG C or more, and quartz is because of phase transformation once biggish volume expansion, institute
When with one 500 DEG C preferably heat preservation 30 ', quartz is allowed mutually to be slowed by progress, 700 DEG C of shell or so porositys maximums, are investment shell intensities
Minimum point, until 800 DEG C or more shells are gradually sintered, intensity just starts to increase, the maximum limit of heating, according to fire proofed wood
Material, adhesive, hardening process determine, this technique silica solution, waterglass, Bauxite composite type fire-retardant shell with 850 DEG C for the limit, (3) type
Shell is come out of the stove, and after the completion of work to be prepared, shell is pulled out from roaster；
The temperature change of Baking:
6th step, casting, high temperature are poured into ready-made shell after copper is melted into copper water；It is characterized by: the 6th step
Using 62 brass as cast raw material in casting operation, 62 brass component requirements copper 60.5-63.5%, iron≤0.5%, lead≤
0.08%, antimony≤0.005%, bismuth≤0.002%, phosphorus≤0.01%, surplus are zinc, and zinc is taken when melting is repeatedly added on a small quantity
Mode is added, and when crucible is preheating to crimson, the zinc of Zn content 1/5 is added, while adding the fine aluminium silk of brass total amount 03%, zinc
It is first melted with aluminium, zinc transpiration is at zinc fume, and the oxidant air-breathing that zinc fume can greatly reduce copper in fusion process is inclined to, on steam
The gas in filtrate can be taken away during floating, plays degassing effect, while accelerating the speed of melting of copper, lead to deoxidation after fusing,
After be added remaining zinc, aluminium is added, aluminium can increase the metallic luster on cast product surface in copper alloy and improve its release property
Can, aluminium is added in alloy, it is stronger than zinc to the affinity of oxygen, it is oxidized to aluminum oxide prior to zinc, forms alloy liquid level fine and closely woven
Aluminum oxide film, aluminium oxide surface tension is big, and protective effect is strong, and oxygen can be prevented to continue to gush, and does not protect zinc in the alloy not
It is aoxidized strongly again, aluminium can reduce the scaling loss and volatilization of zinc, and casting operation is as follows:
Energization 50KW preheating --- 1/5 spelter of aggregation amount, 0.3% aluminium wire --- adding copper billet --- add forage covering heating
70KW --- add forage to cover --- block-by-block, which blows slowly, adds spelter --- while constantly adding forage --- adding phosphor-copper --- heating
1050-1100 DEG C of 80KW alloy temperature adds forage covering to come out of the stove
The copper water that aforesaid operations obtain is poured into shell；
7th step, sand removal, cutting polishing, soldering assembling, (1) sand removal are poured shell after cooling and carry out sand removal decladding,
(2) cutting polishing, carries out cutting polishing to the casting after decladding, (3) soldering assembling, to the casting material of the casting after cutting polishing
Material as welding rod carry out repair welding, after according to design drawing by casting be assembled into copper carving；
8th step, surface are showed signs of anger, according to design requirement to the surface coloring of copper carving.
Preferably, the mold turns over system using silica gel mould.
Preferably, the wax-pattern is recorded in operation, when dewaxing, should first melt paraffin, microwax, EVA, operation temperature
At 28 DEG C, paraffin in mould material: 4.9kg, EVA:0.16kg, rosin: 0.31kg, room temperature is at 22 DEG C, paraffin in mould material:
5.5kg, EVA:0.13kg, rosin: 0.52kg, room temperature are lower than 20 DEG C, paraffin 6.0kg, EVA:0.1kg, rosin in mould material:
0.75kg, 10 DEG C of room temperature in mould material hereinafter, need that albolene 0.1-0.1kg is added.
Preferably, needing brush parting compound when the use silica gel mould, parting compound is voluntarily configured, brush wax liquor after parting compound is dry,
With quick gimmick brushing, parting compound is dilute glue, dilute glue by polystyrene vinyl foam plate fragment and dimethylbenzene liquid solution.
Preferably, in the shell operation processed, before spreading quartz sand, wax pattern surface brushing alcohol liquid soap, after alcohol volatilization
Coating operations are carried out, alcohol liquid soap soap powder and industrial alcohol configure.
Preferably, shell interior temperature maintains 390-450 DEG C in the casting operation.
Preferably, copper carving whole body to be blown to the quartz sand of 20-40 mesh, afterwards with after steel wire whole body brushing before the shading operations
Carry out shading operations.
Beneficial effects of the present invention: the copper casted sculpture method for casting production controls mould material formula, in condition of different temperatures
Mould preparation material formula is lowered, wax-pattern temperature change is avoided to expand or shrink, wax-pattern broken the case where bouncing back occurs, while in type
In shell roasting process, in a manner of controlling maturing temperature, delayed-type shell transformation time avoids the expansion of steep temperature rise shell broken,
To guarantee going on smoothly for subsequent operation, in casting operation, the present invention selects 62 brass, and as cast raw material, 62 brass have
Stronger intensity processed has enough hardness and preferable plasticity, is not likely to produce segregation and loose phenomenon, and welding performance is good
It is good, to guarantee the quality of production of copper carving.
Specific embodiment
To make above-mentioned purpose, technical scheme and beneficial effects, which are more clear, to be defined, and is done with reference to embodiments to the present invention
It specifically describes.
Embodiment 1:
The copper casted sculpture method for casting production mainly comprises the steps that
The first step, design drawing design drawing according to the whole conception of sculpture, according to drawing cast sculpture；
Second step makes mud original text, makes model according to design drawing；
Third step, mold turn over system, and turning over molding jig is the complexity according to works and determines scheme, relatively simple works
Gypsum can be taken to turn over system, complicated will turn over system with silica gel, and the present invention selects silica gel mould；It is characterized by: the mold turns over
In system operation, cast gate is first got out before mold assembling, riser, main running channel, branch running channel, ingate, exhaust emit, blind riser, collection
Cinder ladle etc.；
4th step, wax pattern are recorded, and the paraffin melted is poured into the mold made by mold after the completion of turning over system, stone
Mold is dismantled after wax is cooling；It is characterized by: the 4th step wax pattern is recorded in operation, the preparation of mould material is recorded, is used with stone
Wax is the mould material formula of base, in the case of 28 DEG C of room temperature, wax material formula, that is, paraffin: and 4.9kg, stearic acid: 0.21kg, microwax:
0.20kg, rosin: 0.31kg, EVA:0.1kg, brush parting compound, parting compound voluntarily configure after the completion of recording, and brush after parting compound is dry
Wax liquor, with quick gimmick brushing, parting compound is dilute glue, and dilute glue is by polystyrene vinyl foam plate fragment and dimethylbenzene liquid
Solution；
5th step, shell processed are from level to level wrapped the wax pattern made with quartz sand, then again with high temperature inside shell
Paraffin is burning-out, and before coating, wax pattern surface brushing alcohol liquid soap carries out coating operations, alcohol liquid soap fertilizer after alcohol volatilization
Soap powder and industrial alcohol configure, and after wax pattern surface smears binder, wrap quartz sand, operate repeatedly at least three times, binder is
Aqua silica solution, shell processed include the following steps that the dewaxing of (1) shell, (2) Baking, (3) shell are come out of the stove, specifically (1) type
Shell dewaxing uses hot water dewaxing's method, and tap water is filled it up in heating tank, and water level must be more than the highest point at electric heater heating position,
2.1% ammonium chloride is added in hot water, heater shifts to an earlier date 4 hours and heats, and the side of heating gradient is used during (2) Baking
Formula carries out, and moist shell dries 1 hour or so within 100 DEG C to heat up, and when 150 DEG C of in-furnace temperature, keeps the temperature 30 ', in furnace
Temperature is to 500 DEG C, heat preservation 20 ', and in-furnace temperature stops heating to 850 DEG C, and (3) shell is come out of the stove, after the completion of work to be prepared, from
Shell is pulled out in roaster；
6th step, casting, shell interior temperature maintain 390 DEG C, and high temperature is poured into ready-made shell after copper is melted into copper water
It is interior；It is characterized by: using 62 brass as cast raw material, 62 brass component requirements copper in the 6th step casting operation
60.5%, iron 0.35%, lead 0.06%, antimony 0.003%, bismuth 0.001%, phosphorus 0.005%, surplus are zinc, and zinc is taken when melting
The mode being repeatedly added on a small quantity is added, and when crucible is preheating to crimson, the zinc of Zn content 1/5 is added, while adding brass total amount
0.3% fine aluminium silk adds copper billet, and zinc and aluminium wire are placed on furnace bottom, and zinc and aluminium first melt, and remaining zinc is added afterwards, and aluminium is added, and melts
It is poured after change
7th step, sand removal, cutting polishing, soldering assembling, (1) sand removal are poured shell after cooling and carry out sand removal decladding,
(2) cutting polishing, carries out cutting polishing to the casting after decladding, (3) soldering assembling, to the casting material of the casting after cutting polishing
Material as welding rod carry out repair welding, after according to design drawing by casting be assembled into copper carving；
8th step, surface are showed signs of anger, and are coloured according to design requirement to copper carving surface, are blown copper carving whole body before the shading operations
The quartz sand of 20 mesh, afterwards with carrying out shading operations after steel wire whole body brushing.
Embodiment 2:
The copper casted sculpture method for casting production mainly comprises the steps that
The first step, design drawing design drawing according to the whole conception of sculpture, according to drawing cast sculpture；
Second step makes mud original text, makes model according to design drawing；
Third step, mold turn over system, and turning over molding jig is the complexity according to works and determines scheme, relatively simple works
Gypsum can be taken to turn over system, complicated will turn over system with silica gel, and the present invention selects silica gel mould；It is characterized by: the mold turns over
In system operation, cast gate is first got out before mold assembling, riser, main running channel, branch running channel, ingate, exhaust emit, blind riser, collection
Cinder ladle etc.；
4th step, wax pattern are recorded, and the paraffin melted is poured into the mold made by mold after the completion of turning over system, stone
Mold is dismantled after wax is cooling；It is characterized by: the 4th step wax pattern is recorded in operation, the preparation of mould material is recorded, is used with stone
Wax is the mould material formula of base, in the case of 20 DEG C of room temperature, wax material formula i.e. paraffin: and 6.0kg, stearic acid: 0.28kg, microwax:
Brush parting compound, parting compound voluntarily configure after the completion of 0.26kg, rosin: 0.75kg, EVA:0.16kg are recorded, and brush after parting compound is dry
Wax liquor, with quick gimmick brushing, parting compound is dilute glue, and dilute glue is by polystyrene vinyl foam plate fragment and dimethylbenzene liquid
Solution；
5th step, shell processed are from level to level wrapped the wax pattern made with quartz sand, then again with high temperature inside shell
Paraffin is burning-out, and before coating, wax pattern surface brushing alcohol liquid soap carries out coating operations, alcohol liquid soap fertilizer after alcohol volatilization
Soap powder and industrial alcohol configure, and after wax pattern surface smears binder, wrap quartz sand, operate repeatedly at least three times, binder is
Aqua silica solution, shell processed include the following steps that the dewaxing of (1) shell, (2) Baking, (3) shell are come out of the stove；It is characterized by: institute
It states in the operation of the 5th step shell, after wax pattern surface smears binder, wraps quartz sand, operate repeatedly at least three times, binder is
Aqua silica solution, the dewaxing of (1) shell use hot water dewaxing's method, tap water are filled it up in heating tank, water level must be more than electric heater
The highest point of heating position adds 2.9% ammonium chloride in hot water, and heater shifts to an earlier date 4 hours and heats, (2) Baking process
Middle to be carried out by the way of heating gradient, moist shell dries 1 hour or so within 100 DEG C to heat up, and works as in-furnace temperature
180 DEG C, heat preservation 60 ', in-furnace temperature is to 500 DEG C, heat preservation 25 ', and in-furnace temperature stops heating to 850 DEG C, and (3) shell is come out of the stove, to
After the completion of preparation, shell is pulled out from roaster；
6th step, casting, shell interior temperature maintain 450 DEG C, and high temperature is poured into ready-made shell after copper is melted into copper water
It is interior；It is characterized by: using 62 brass as cast raw material, 62 brass component requirements copper in the 6th step casting operation
61.5%, iron 0.45%, lead 0.07%, antimony 0.004%, bismuth 0.001%, phosphorus 0.008%, surplus are zinc, and zinc is taken when melting
The mode being repeatedly added on a small quantity is added, and when crucible is preheating to crimson, the zinc of Zn content 1/5 is added, while adding brass total amount
0.3% fine aluminium silk adds copper billet, and zinc and aluminium wire are placed on furnace bottom, and zinc and aluminium first melt, and remaining zinc is added afterwards, and aluminium is added, and melts
It is poured after change.
7th step, sand removal, cutting polishing, soldering assembling, (1) sand removal are poured shell after cooling and carry out sand removal decladding,
(2) cutting polishing, carries out cutting polishing to the casting after decladding, (3) soldering assembling, to the casting material of the casting after cutting polishing
Material as welding rod carry out repair welding, after according to design drawing by casting be assembled into copper carving；
8th step, surface are showed signs of anger, and are coloured according to design requirement to copper carving surface, are blown copper carving whole body before the shading operations
The quartz sand of 40 mesh, afterwards with carrying out shading operations after steel wire whole body brushing.
Embodiment 3:
The copper casted sculpture method for casting production mainly comprises the steps that
The first step, design drawing design drawing according to the whole conception of sculpture, according to drawing cast sculpture；
Second step makes mud original text, makes model according to design drawing；
Third step, mold turn over system, and turning over molding jig is the complexity according to works and determines scheme, relatively simple works
Gypsum can be taken to turn over system, complicated will turn over system with silica gel, and the present invention selects silica gel mould；It is characterized by: the mold turns over
In system operation, cast gate is first got out before mold assembling, riser, main running channel, branch running channel, ingate, exhaust emit, blind riser, collection
Cinder ladle etc.；
4th step, wax pattern are recorded, and the paraffin melted is poured into the mold made by mold after the completion of turning over system, stone
Mold is dismantled after wax is cooling；It is characterized by: the 4th step wax pattern is recorded in operation, the preparation of mould material is recorded, is used with stone
Wax is the mould material formula of base, and the wax-pattern records in operation, and when dewaxing should first melt paraffin, microwax, EVA, operation temperature
At 28 DEG C, paraffin in mould material: 4.9kg, stearic acid: 0.25kg, microwax: 0.23kg, EVA:0.16kg, rosin: 0.31kg,
Room temperature is at 22 DEG C, paraffin in mould material: 5.5kg, stearic acid: 0.25kg, microwax: 0.23kg, EVA:0.13kg, rosin:
0.52kg, room temperature are lower than 20 DEG C, paraffin 6.0kg, stearic acid: 0.25kg, microwax: 0.23kg, EVA:0.1kg, pine in mould material
Fragrant: 0.75kg, 10 DEG C of room temperature record operation with real-time room temperature and determine mould hereinafter, need that albolene 0.1-0.1kg is added in mould material
Material formula, brush parting compound, parting compound voluntarily configure after the completion of recording, brush wax liquor after parting compound is dry, with quick gimmick brushing, parting
Agent be dilute glue, dilute glue by polystyrene vinyl foam plate fragment and dimethylbenzene liquid solution；
5th step, shell processed are from level to level wrapped the wax pattern made with quartz sand, then again with high temperature inside shell
Paraffin is burning-out, and before coating, wax pattern surface brushing alcohol liquid soap carries out coating operations, alcohol liquid soap fertilizer after alcohol volatilization
Soap powder and industrial alcohol configure, and after wax pattern surface smears binder, wrap quartz sand, operate repeatedly at least three times, binder is
Aqua silica solution, shell processed include the following steps that the dewaxing of (1) shell, (2) Baking, (3) shell are come out of the stove；It is characterized by: institute
It states in the operation of the 5th step shell, after wax pattern surface smears binder, wraps quartz sand, operate repeatedly at least three times, binder is
Aqua silica solution, the dewaxing of (1) shell use hot water dewaxing's method, tap water are filled it up in heating tank, water level must be more than electric heater
The highest point of heating position adds 2.9% ammonium chloride in hot water, and heater shifts to an earlier date 4 hours and heats, (2) Baking process
Middle to be carried out by the way of heating gradient, moist shell dries 1 hour or so within 100 DEG C to heat up, and works as in-furnace temperature
200 DEG C, heat preservation 30 ', in-furnace temperature is to 500 DEG C, heat preservation 30 ', and in-furnace temperature stops heating to 850 DEG C, and (3) shell is come out of the stove, to
After the completion of preparation, shell is pulled out from roaster；
6th step, casting, shell interior temperature maintain 400 DEG C, and high temperature is poured into ready-made shell after copper is melted into copper water
It is interior；It is characterized by: using 62 brass as cast raw material, 62 brass component requirements copper in the 6th step casting operation
63.5%, iron 0.5%, lead 0.08%, antimony 0.005%, bismuth 0.002%, phosphorus 0.01%, surplus are zinc, and zinc is taken few when melting
It measures the mode being repeatedly added to be added, when crucible is preheating to crimson, the zinc of Zn content 1/5 is added, while adding brass total amount
0.3% fine aluminium silk adds copper billet, and zinc and aluminium wire are placed on furnace bottom, and zinc and aluminium first melt, and remaining zinc is added afterwards, and aluminium is added, and melts
It is poured after change
7th step, sand removal, cutting polishing, soldering assembling, (1) sand removal are poured shell after cooling and carry out sand removal decladding,
(2) cutting polishing, carries out cutting polishing to the casting after decladding, (3) soldering assembling, to the casting material of the casting after cutting polishing
Material as welding rod carry out repair welding, after according to design drawing by casting be assembled into copper carving；
8th step, surface are showed signs of anger, and are coloured according to design requirement to copper carving surface, are blown copper carving whole body before the shading operations
The quartz sand of 20 mesh, afterwards with carrying out shading operations after steel wire whole body brushing.
Effect analysis
Operator carries out copper carving production respectively with the operating procedure that above three embodiments are recorded, and records production process
In each step concrete operations information and operating result.
The technical solution that embodiment 1 is recorded is before shell processed operation, and when smearing adhesive and quartz sand, it is existing that retraction occurs for wax-pattern
As wax-pattern shape is imperfect, carries out shell operation processed with this wax-pattern, copper carving and the copper on design drawing of form carve shape not
Unanimously；The technical solution that embodiment 2 is recorded is before shell processed operation, and when smearing adhesive and quartz sand, wax-pattern occurs splitting wax phenomenon,
Subsequent shell operation processed can not be successfully progress；The technical solution that embodiment 3 is recorded smears adhesive and quartz sand before shell processed operation
When, wax pattern surface is moist, and wax-pattern shape is clear, and it is excellent that wax-pattern, which turns over system operation with the technical solution that embodiment 3 is recorded,；
Embodiment 1 record technical solution after Baking is come out of the stove, shell surface porosity, in casting operation must and its
Carefully, when preventing pouring operation, shell fragmentation, casting operation is inconvenient；The technical solution that embodiment 2 is recorded is roasted in shell
After burning furnace, there is subtle slight crack in shell surface, and quality is loose, and rebound phenomenon integrally occurs in shell, when pouring operation, occurs
Copper liquid leaks out, and casts copper carving shape and the inconsistent situation of design drawing；The technical solution that embodiment 3 is recorded, shell quality
It is firm, and shape is clear, does not occur the case where shell fragmentation, copper liquid leaks out, the technology that embodiment 3 is recorded during pouring operation
Scheme production operation is more smooth and copper carving is up-to-standard,.
In conclusion the copper casted sculpture method for casting production, with the mode of operation and material proportion recorded in embodiment 3
It is excellent.
The copper casted sculpture method for casting production controls mould material formula, lowers mould preparation material formula in condition of different temperatures, keeps away
Exempt from wax-pattern temperature change to expand or shrink, wax-pattern broken the case where bouncing back occurs, while during Baking, with control
The mode of maturing temperature processed, delayed-type shell transformation time avoid the expansion of steep temperature rise shell broken, to guarantee the suitable of subsequent operation
Benefit carries out, and in casting operation, the present invention selects 62 brass, and as cast raw material, 62 brass have stronger intensity processed, has
Enough hardness and preferable plasticity are not likely to produce segregation and loose phenomenon, and welding performance is good, to guarantee the production of copper carving
Quality.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (7)
1. a kind of copper casted sculpture method for casting production, the copper casted sculpture method for casting production is mainly comprised the steps that
The first step, design drawing design drawing according to the whole conception of sculpture, according to drawing cast sculpture；
Second step makes mud original text, makes model according to design drawing；
Third step, mold turn over system, turn over that molding jig is the complexity according to works and determines scheme, and relatively simple works can be adopted
Gypsum is taken to turn over system, complicated will turn over system with silica gel；It is characterized by: the mold turns in system operation, it is first quasi- before mold assembling
Get cast gate ready, riser, main running channel, branch running channel, ingate, exhaust emit, blind riser, slag trap etc.；
4th step, wax pattern are recorded, and the paraffin melted is poured into the mold made by mold after the completion of turning over system, and paraffin is cold
But mold is dismantled afterwards；It is characterized by: the 4th step wax pattern is recorded in operation, the preparation of mould material is recorded, uses and is with paraffin
The mould material formula of base, i.e. paraffin: 4.9-6.0kg, stearic acid: 0.21-0.28kg, microwax: 0.20-0.26, rosin: 0.31-
0.75kg, EVA:0.1-0.16kg；
5th step, shell processed are from level to level wrapped the wax pattern made with quartz sand, then again with high temperature the paraffin inside shell
It is burning-out, it is characterised in that: in the 5th step shell operation, after wax pattern surface smears binder, to wrap quartz sand, operate repeatedly
At least three times, binder is aqua silica solution, and the dewaxing of (1) shell, the roasting of (2) shell are performed the following operation after the completion of quartz sand package
It burns, (3) shell is come out of the stove；Specifically, the dewaxing of (1) shell uses hot water dewaxing's method, heating ladder is used during (2) Baking
The mode of degree carries out, and moist shell is put into roaster, heats up after drying 1 hour in 100 DEG C, when in-furnace temperature≤200
DEG C, heat preservation 30 ', in-furnace temperature reaches 500 DEG C, and heat preservation 30 ', in-furnace temperature reaches 850 DEG C, stops heating, roasting process temperature
Change as follows:
(3) shell is come out of the stove, and after the completion of work to be prepared, shell is pulled out from roaster；
6th step, casting, high temperature are poured into ready-made shell after copper is melted into copper water；It is characterized by: the 6th step casting
Using 62 brass as cast raw material in operation, 62 brass component requirements copper 60.5-63.5%, iron≤0.5%, lead≤
0.08%, antimony≤0.005%, bismuth≤0.002%, phosphorus≤0.01%, surplus are zinc, and casting operation is as follows:
Energization 50KW preheating --- 1/5 spelter of aggregation amount, 0.3% aluminium wire --- adding copper billet --- add forage covering heating
70KW --- add forage to cover --- block-by-block, which blows slowly, adds spelter --- while constantly adding forage --- adding phosphor-copper --- heating
1050-1100 DEG C of 80KW alloy temperature adds forage covering to come out of the stove
The copper water that aforesaid operations obtain is poured into shell；
7th step, sand removal, cutting polishing, soldering assembling, (1) sand removal are poured shell after cooling and carry out sand removal decladding, and (2) are cut
Polishing is cut, cutting polishing is carried out to the casting after decladding, the casting founding materials after cutting polishing are made in (3) soldering assembling
For welding rod carry out repair welding, after according to design drawing by casting be assembled into copper carving；
8th step, surface are showed signs of anger, according to design requirement to the surface coloring of copper carving.
2. a kind of copper casted sculpture method for casting production according to claim 1, it is characterised in that: the mold turns over system and adopts
Use silica gel mould.
3. a kind of copper casted sculpture method for casting production according to claim 1, it is characterised in that: the wax-pattern records behaviour
In work, first paraffin, microwax, EVA should be melted when dewaxing, operation temperature is at 28 DEG C, paraffin in mould material: 4.9kg, EVA:
0.16kg, rosin: 0.31kg, room temperature is at 22 DEG C, paraffin in mould material: 5.5kg, EVA:0.13kg, rosin: 0.52kg, room temperature
Lower than 20 DEG C, paraffin 6.0kg, EVA:0.1kg, rosin: 0.75kg in mould material, 10 DEG C of room temperature in mould material hereinafter, need to be added white all
Intellectual circle 0.1-0.1kg.
4. a kind of copper casted sculpture method for casting production according to claim 1, it is characterised in that: described to use silica gel mould
When molding, brush parting compound is needed, parting compound voluntarily configures, brush wax liquor after parting compound is dry, and with quick gimmick brushing, parting compound is dilute glue
Liquid, dilute glue by polystyrene vinyl foam plate fragment and dimethylbenzene liquid solution.
5. a kind of copper casted sculpture method for casting production according to claim 1, it is characterised in that: the shell operation processed
In, before spreading quartz sand, wax pattern surface brushing alcohol liquid soap carries out coating operations, alcohol liquid soap soap after alcohol volatilization
Powder and industrial alcohol configure.
6. a kind of copper casted sculpture method for casting production according to claim 1, it is characterised in that: the casting operation
In, shell interior temperature maintains 390-450 DEG C.
7. a kind of copper casted sculpture method for casting production according to claim 1, it is characterised in that: before the shading operations
Copper carving whole body is blown into the quartz sand of 20-40 mesh, afterwards with carrying out shading operations after steel wire whole body brushing.
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| CN110254107A (en) * | 2019-06-03 | 2019-09-20 | 启东宇杰雕塑有限公司 | A kind of wax pattern production technology based on metal carving |
| CN111331075A (en) * | 2020-03-02 | 2020-06-26 | 王世顺 | Processing technology of silver ornament |
| CN112108610A (en) * | 2020-08-03 | 2020-12-22 | 成都鑫劦科技服务有限公司 | Precision casting process of copper ware casting |
| CN112387926A (en) * | 2020-10-12 | 2021-02-23 | 铜陵铜官府文化创意股份公司 | Composite thick-tyre cloisonne production process |
| CN112719218A (en) * | 2020-12-23 | 2021-04-30 | 崔誉 | Method for manufacturing antique copper artware |
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| CN110254107A (en) * | 2019-06-03 | 2019-09-20 | 启东宇杰雕塑有限公司 | A kind of wax pattern production technology based on metal carving |
| CN111331075A (en) * | 2020-03-02 | 2020-06-26 | 王世顺 | Processing technology of silver ornament |
| CN112108610A (en) * | 2020-08-03 | 2020-12-22 | 成都鑫劦科技服务有限公司 | Precision casting process of copper ware casting |
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| CN112719218A (en) * | 2020-12-23 | 2021-04-30 | 崔誉 | Method for manufacturing antique copper artware |
| CN113664156A (en) * | 2021-08-11 | 2021-11-19 | 无锡华晨宝鼎科技有限公司 | Forming method of underwater detector cover |
| CN113664156B (en) * | 2021-08-11 | 2023-02-28 | 无锡华晨宝鼎科技有限公司 | Forming method of underwater detector cover |
| CN114454659A (en) * | 2022-02-11 | 2022-05-10 | 山西宇达青铜文化艺术股份有限公司 | Process method for making multiple marble effects on surface of bronze artwork |
| CN115772623A (en) * | 2022-11-18 | 2023-03-10 | 新乡市信瑞达制冷设备有限公司 | Phase change plate for bullet, preparation method thereof and application of metal phase change material |
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