CN108971902A - A kind of production method of noble metal products - Google Patents
A kind of production method of noble metal products Download PDFInfo
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- CN108971902A CN108971902A CN201810930299.9A CN201810930299A CN108971902A CN 108971902 A CN108971902 A CN 108971902A CN 201810930299 A CN201810930299 A CN 201810930299A CN 108971902 A CN108971902 A CN 108971902A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C27/00—Making jewellery or other personal adornments
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
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Abstract
The present invention provides a kind of production methods of noble metal products, and the hard gold process of 3D and oil pressure technique are combined, include the following steps: S1, preform blank model；S2, electroforming: being put into electroforming in the electroforming cylinder for containing electrolyte after the green body model prepared is surface-treated, surface forms uniform electroformed layer, electroforming coining part can be obtained after the completion of electroforming, electroforming thickness and weight can be preset as needed；S3, printing electroforming imprint part: oil pressure mold being mounted on hydraulic press, electroforming coining part is chosen and is placed in the cavity of oil pressure mold, carry out oil pressure, printing stereo embossing, forms preset surface effect, including impression level, bright sand effect, fantasy coloured effect or coining micro text；S4, punching simultaneously remove blank: at least one hole is beaten on the surface of the good noble metal semi-finished product of oil pressure, removes the filler in noble metal semi-finished product, is i.e. prefabricated green body model, leaves noble metal electroformed layer to obtain noble metal finished product in step S1.
Description
[technical field]
The present invention relates to noble metal products to make manufacture field, and especially a kind of production method of noble metal products is special
Point is to combine the hard gold process of 3D and oil pressure technique.
[background technique]
Traditional gold jewelry quality is more soft, and is easily deformed, scratches, and small in size, weight is big, and price is relatively more high
Expensive, the deficiency that the hard gold of 3D then avoids these traditional gold ornaments passes through electroforming by using hollow nanometer " electroforming " technology
Gold content, pH value, operating temperature, organic photo etching content and agitation speed in liquid are improved, and the hardness of gold is improved
And wearability.The hardness of the hard gold of 3D is 4 times of traditional pure gold, improves wearability, high-precision wax-pattern seems the hard gold of 3D
More three-dimensional, advanced space DEWAXING TECHNIQUE can accomplish that no-welding-spot, seamless, one-pass molding, the smooth lines in surface are excellent
Beauty.Since the hard gold process of 3D mainly produces noble metal products with " electroforming " technique, which is difficult
Reach clear, fine, and then influences its visual effect, meanwhile, because of three-dimensional reason, electroforming is the solution containing gold by putting
Electricity, the gold reduction in electrolyte are attached to product surface, are difficult to be precisely controlled the quality of each product.
Oil pressure technique is exactly oil pressure gold, and it is all that processing produces that the action in oil pressure portion and stock portion, which are the same,
The first type of product, that is, processing semi-finished product.The expensive clearly noble metal products of picture on surface can be produced using oil pressure technique, but
It is to be influenced by oil pressure process limitation, the three-dimensional stereo moulding product with more negative angles, more overhead kick positions, institute cannot be imprinted
Meaning with negative angle three-dimensional stereo moulding product be exactly do not have any one curved surface product can be divided into two parts, and
By the view with curved vertical, any one surface of product can be completely observed；And the product imprinted out
Surface relief pattern is not full enough, and stereo space sense is poor, so that the noble metal products lack stereoscopic effect.
In addition, raw material can be stamped into required moulding using the mold of preparation by raw material according to needed for by punching press, with
The continuous improvement of the market demand, not only need for raw material to be prepared into required shape, it is also necessary to prepare accessory after molding
Surface decoration effect (decorative pattern, pattern, text, embossment, illusion-colour, skin texture decorative pattern and other effects).As technique is constantly promoted, preparation
Pattern precision also step up, constantly competed by market, demand is also continuously improved, and pattern precision also needs to mention therewith
It is high.
Therefore, it is necessary to a kind of new processes for organically combining the hard gold process of 3D and oil pressure technique, have createed one kind both
The noble metal products that surface relief pattern decorative pattern is fine, full can be produced again with the firmly golden intensity of 3D, to overcome existing work
The defect of skill.
[summary of the invention]
Technical problem to be solved by the invention is to provide a kind of hard gold process of combination 3D and the noble metal of oil pressure technique to produce
Product manufacture craft, the noble metal products produced by the manufacture craft not only have the firmly golden intensity of 3D, and hardness is high, wear-resisting
Property it is strong, and surface relief pattern is finer, full, has better stereoscopic effect.
In order to solve the above-mentioned technical problem, the purpose of the present invention is to provide a kind of production methods of noble metal products, will
The hard gold process of 3D and oil pressure technique combine, and include the following steps:
S1, preform blank model；
S2, electroforming: it is put into the electroforming cylinder for containing electrolyte and carries out after the green body model prepared is surface-treated
Electroforming makes its surface form uniform electroformed layer, and electroforming coining part can be obtained after the completion of electroforming, which imprints the electroforming of part
Thickness and weight can be preset as needed；
S3, printing electroforming imprint part: oil pressure mold being mounted on hydraulic press, electroforming coining part is chosen and is placed on oil pressure
In the cavity of mold, oil pressure is carried out, printing stereo embossing forms preset surface effect, including impression level, bright sand effect
Fruit, fantasy coloured effect or coining micro text；
S4, punching simultaneously remove blank: at least one hole is beaten on the surface of the good noble metal semi-finished product of oil pressure, removes noble metal
Filler in semi-finished product, i.e. prefabricated green body model in step S1 leave noble metal electroformed layer to obtain noble metal finished product.
Preferably, before the step S1 manufacture green body model further include: layout design, the layout design include finished product
Picture proof and step process in the green body moulding, size, corresponding oil pressure finished product die and green body mould structure and the ruler that are related to
Very little design, i.e., deisgn product threedimensional model as needed；Matched finished product oil pressure is produced according to product threedimensional model
Mold and green body mold.
Preferably, the step S1 preform blank model includes: reverse mould production or punching press production, the reverse mould production is again
Referred to as investment wax casting method fills the melt of liquid condition that is, in the green body mold held successfully, can cast out after melt is cooling
Green body model；The punching press production is also known as oil pressure, i.e., green body is obtained base by making the stamping die progress punching press of green body
Body carries out model to hold mould, reparation, processing, obtains the green body model of surface exquisiteness after green body model is made.
Preferably, the melt is wax, aluminium, silver, zinc, lead, tin, silica gel or alloy.
Preferably, the reverse mould manufacturing process of the green body mold includes: firstly, production spray mimeograph stencil or engraving metallograph
Model plays version by hand, obtains mold after then carrying out multiple mould, wherein the production spray mimeograph stencil includes: by the green body
The data of mold threedimensional model are imported into wax spray machine, pass through one mimeograph stencil model of wax spray machine spray；The copperplate engraving
Model include: by the data of the green body mold threedimensional model imported into CNC engraving and wherein, carve a metallograph model；
It is described to carry out obtaining mold after multiple mould including: that mimeograph stencil model or metallograph model are connected mouth of a river position and are placed on a container
It is interior；By flexible glue perhaps alloy be melted into liquid pour into the container after flexible glue or alloy graining molding after point in cut, it is described
The mode of incision is to cut flexible glue block by the mouth of a river position reserved when moulding, takes out the mimeograph stencil model or copperplate model of the inside,
A hollow green body mold is formed, it can mass production green body model using the green body mold.
Preferably, the metallograph model is copperplate model.
Preferably, the process of the punching press production green body mold includes three kinds of modes, it is respectively as follows:
(1) mold is gone out using CNC engraving and machine direct engraving, is mounted on hydraulic press after then post-processing to mold
On assembled；
(2) mold is gone out using laser engraving machine direct engraving, is mounted on hydraulic press after then being post-processed to mold
It is assembled；
(3) engraving copper is public, and discharged on spark machine corrosion die steel using copper public affairs, after then post-processing to mold
It is assembled.
Preferably, the post-processing includes: production die surface effect, including surface is carved out with impression figure
Case, bright sand face, skin texture line.
Preferably, in step s 2, the material of the electroforming coining part is that gold, silver, k gold, platinum or porpezite are wherein any
One kind, electroforming is with a thickness of 0.01-0.4mm.
Preferably, finished product stamping die production method of the step S3 using punching press production electroforming workpiece, including three kinds
Mode:
(1) data of oil pressure mold threedimensional model are imported into progress CNC die steel engraving in CNC engraving machine；
(2) data of oil pressure mold threedimensional model are imported into progress laser die steel engraving in laser engraving machine；
(3) engraving copper is public, and discharged on spark machine corrosion die steel using copper public affairs, after then post-processing to mold
It is assembled.
Preferably, the post-processing includes: production die surface effect, including surface is carved out with impression figure
Case, bright sand face, illusion-colour, skin texture line and/or micro text and pattern.
Preferably, the Impact direction of the punching press production is upper and lower and/or left and right and/or front and back, the punching press production makes
Equipment further includes sliding block, adjusts the sliding block after confirming product Impact direction according to the type of different product, passes through sliding block
Change the Impact direction of punching press.
Preferably, the CNC engraving determines whether engraving micro text and pattern, the engraving according to graver size
Knife, which can draw 0.01mm or less thickness stroke, can carve micro text and pattern；The laser engraving can draw 0.03mm or less thickness
Stroke can carve micro text and pattern.
Preferably, in step s3, the pressure of the hydraulic press compacting is 20-4000Mpa, the oil pressure time is 5-20 seconds,
The oil pressure is by the way of being cold-pressed drum.
Preferably, by the surface hole Da Liangge of the good noble metal semi-finished product of oil pressure in the step S4, and two holes are divided
Cloth workpiece it is corresponding up and down/position of left and right/front and back, it is selection surface relative smooth, biggish without decorative pattern and relative position
Corresponding direction forms convection current, to easily remove the blank of filling.
Preferably, further comprising the steps of: S5, product handling system: S4 noble metal finished product being modified, then surface can be made and have
Impression pattern or surface have the noble metal finished product of bright sand effect or fantasy coloured effect.
Preferably, micro text directly can also be carved in noble metal surface of semi-finished by laser engraving and CNC engraving
Noble metal finished product is formed after pattern.
Preferably, further comprise the steps of: S6, fill at least one hole that the surface of the good noble metal semi-finished product of oil pressure is beaten,
At least one hole is filled by way of welding manner or additional processing accessory plugging hole.
Preferably, being imitated with impression level without bright sand effect or illusion-colour for surface formed in step S3
The noble metal semi-finished product of fruit, the step S5 are specifically included:
S51, it holds mould: reparation, shaping, the polishing of the firmly golden finished product of noble metal is handled；
Color is hung in S52, sandblasting: being beaten the surface in the firmly golden finished product of noble metal by sand-blasting machine with micron-sized quartz sand, is made it
The surface for forming uniform matt carries out hanging color by special liquid medicine, reaches the color of the firmly golden finished surface of noble metal, gloss
To consistent；
S53, manual press polish: mill is pressed on the surface of the firmly golden finished product of noble metal with special wolfram steel knife, agate knife, is formed bright
Color；
By step S51, S52 and S53, forms surface and not only had impression level but also there is bright sand effect or both band
Having impression level again has the noble metal finished product of fantasy coloured effect.
The beneficial effects of the present invention are: by above-mentioned processing step, it can be made that hardness is high, wearability is strong, embossment figure
The firmly golden product of the clear noble metal full, with better stereo space sense of case, the present invention can effectively overcome existing production
Product hardness is low, easy to wear, and the decorative pattern on surface is also not fine enough, and the problem of shortage stereoscopic effect.It is obtained through the invention
The firmly golden product of noble metal not only has hardness and toughness, is unlikely to deform and wears, and can produce clear, fine complete vertical
Body floral designs, and there is better stereoscopic visual effect, the firmly golden product of the noble metal is more welcome on the market, market
Prospect is more wide.
[Detailed description of the invention]
It is attached that Fig. 1 shows the fabrication processing figures of noble metal products according to an embodiment of the present invention.
[specific embodiment]
Embodiment 1
Shown in referring to Fig.1, the invention discloses a kind of manufacture crafts of noble metal products to include the following steps:
S1, cast green body model: the green body mold held successfully altogether, by after the filling dissolution of mouth of a river position in liquid
The melt of state, the alloy of filling melt at present, compared to other kinds of material, alloy has fusing point low, is easy to molten with acid
Solution, the two points increase productivity primary concern is that later period removal blank saving process and time.The attribute of alloy is closer
In noble metal material qualitative attribution, in punching course, the attributes such as convergent force and extensibility, hardness can preferably cooperate electroforming product
Punching press, guarantee that decorative pattern is fine, surface does not have the problems such as fold, and the melting range of alloy is about between 50 degree of -400 degree,
What the present embodiment was taken is the zinc magnesium alloy spent 340, this alloy and hydrochloric acid more, and the acid reaction speed such as nitric acid, sulfuric acid is fast, after saving
Process handles the time, and green body can be quickly melted in by reacting with sour by the alloy of low temperature by heating, can more accelerate speed
Degree.The advantage of zinc magnesium alloy, which is also embodied in, does not react with gold, and certain alloys are when doing green body, the loss of gold when removing green body
It is larger.Green body model can be cast out after melt is cooling；Specifically, the melt of liquid condition passes through the opened up water of green body mold
Mouth position is filled into the intracavitary of green body mold, and to open green body mold after melt zinc magnesium alloy cooled and solidified, green body can be obtained
Model (may be alternatively configured the green body model of hollow structure, can determine according to default grammes per square metre, size), and carry out to green body model light
Micro- reparation guarantees that as preset shape, green body, which has, carries out the adjustment of shrink position to corresponding radian, and embossment radian position will amplify hundred
/ tri-, guarantee that product embossing pattern is full；Product edge will reduce 3 percent, and product is avoided to be squeezed to be formed by pressure influence
Burr.
S2, electroforming: green body model is taken out after cooling, and is put into splendid attire after the green body model prepared is surface-treated
Electroforming is carried out in the electroforming cylinder of electrolyte, its surface is made to form uniform electroformed layer, and electroforming coining can be obtained after the completion of electroforming
Part, the electroforming imprint the electroforming of part with a thickness of 0.01mm；
S3, printing electroforming imprint part: oil pressure mold being mounted on hydraulic press, electroforming coining part is chosen and is placed on oil pressure
In the cavity of mold, the printing of three-dimensional embossing is carried out, prints out the noble metal semi-finished product that surface has impression pattern；Its
In, the pressure of hydraulic press compacting is 20Mpa, and the oil pressure time is 20 seconds；
Significantly, since oil pressure technique can only carry out punching press to the structure on noble metal products surface, it is not capable of processing
Product with bending, dog-ear or negative angle, so during oil pressure, also need to bending, negative angle moulding it is expensive
Metal product makees empty avoiding design, i.e., increases clearance position on oil pressure mold and reserve away the position of material, if product bending, negative angle
When more, which makees empty avoiding processing in the correspondingly part of bending or negative angle can carry out oil directly on oil pressure mold
Pressure；If product is not bent, negative angle moulding, it is just not used as empty avoiding processing.
S4, punching: making a call to two holes in resulting noble metal surface of semi-finished, remove the filler in noble metal semi-finished product,
The filler is green body model prefabricated in S1, obtains noble metal finished product.
Embodiment 2
Present embodiment discloses a kind of manufacture crafts of noble metal products to include the following steps:
S1, layout design: design green body threedimensional model as needed by CNC mold design Software on Drawing and obtains base
Body three-dimensional models data；Matched oil pressure mold threedimensional model is designed according to green body threedimensional model, passes through CNC mold
Design software is drawn and obtains oil pressure mold three-dimensional modeling data；
S2, Mold Making: the data of green body three-dimensional modeling data and oil pressure mold threedimensional model are directed respectively into CNC
CNC die steel engraving is carried out in engraving machine, obtains green body mold and oil pressure mold.Specifically, the production of the mold includes base
The production of mould and the production of oil pressure mold, the green body mold in the present embodiment is carved using steel, i.e., by green body
Three-dimensional modeling data is imported into CNC engraving machine, carves a green body mold, the green body mold can also using flexible glue or
Other materials are carved.The manufacturing process of oil pressure mold includes；Oil pressure mold three-dimensional modeling data is imported into CNC engraving machine
CNC die steel engraving is carried out in device, carves out surface with impression pattern oil pressure mold and is installed in hydraulic press
On, hard golden flower line routine substantially has 0.2mm thickness, and CNC engraving determines whether to carve miniature according to graver size
Character pattern, the present embodiment graver can draw 0.01mm thickness stroke, it is possible to carve micro text and pattern.
By combining advanced CNC engraving technology that micro text and pattern is carved in die surface, by punching press, by mold
The product surface of the pattern transfer on surface.It can mass production.Manifestation mode is the eyes of people when observing tiny things, when
Character pattern does not see Chu in the case where minimum, is produced on product surface through this small character pattern, on the one hand
The craftsmanship of the production of product is enhanced, product is made to enhance aesthetics, artistic value itself is improved；On the other hand it plays
Anti-fake effect because micro text under mobile phone enlarging function or magnifying glass and microscopically observation just can be clearly
See character pattern, thus the production technology other people will not imitate easily, play anti-fake effect indirectly.
The oil pressure mold carved out can carry out sandblasting, polishing, press polish etc. to the oil pressure die surface according to the needs of product
The processing of process can directly imprint out in product surface with bright sand by sandblasting, polishing, press polish treated oil pressure mold
Face, skin texture decorative pattern, fantasy coloured effect impression pattern；Sandblasting, polishing, press polish etc. can also be carried out to finished product in subsequent handling
The processing of process, can be depending on actual product.Also, the above-mentioned green body mold made and oil pressure mold, which need to be checked, is
It is no to have the defects of overlap, incomplete, it needs to repair defective bit accordingly if there are these defects, in order to avoid to subsequent technique
Unnecessary influence is caused, the clearance position and the reserved control for walking discharge position of negative angle moulding is noted also, can make
Clear, fine complete three-dimensional patterns are made, better stereoscopic visual effect is increased.
S3, cast green body model: the green body mold held successfully altogether, by after the filling dissolution of mouth of a river position in liquid
The melt of state, the alloy of filling melt at present, compared to other kinds of material, alloy has fusing point low, is easy to molten with acid
Solution, the two points increase productivity primary concern is that later period removal blank saving process and time.The attribute of alloy is closer
In noble metal material qualitative attribution, in punching course, the attributes such as convergent force and extensibility, hardness can preferably cooperate electroforming product
Punching press, guarantee that decorative pattern is fine, surface does not have the problems such as fold, the fusing point of alloy having between 50 degree of -400 degree at present,
What the present embodiment was taken is the zinc magnesium alloy spent 340, this alloy and hydrochloric acid more, and the acid reaction speed such as nitric acid, sulfuric acid is fast, after saving
Process handles the time, and green body can be quickly melted in by reacting with sour by the alloy of low temperature by heating, can more accelerate speed
Degree.The advantage of zinc magnesium alloy, which is also embodied in, does not react with gold, and some alloys are when doing green body, the loss of gold when removing green body
It is larger.Green body model can be cast out after melt is cooling；Specifically, the melt of liquid condition passes through the opened up water of green body mold
Mouth position is filled into the intracavitary of green body mold, and to open green body mold after melt zinc magnesium alloy cooled and solidified, green body can be obtained
Model (may be alternatively configured the green body model of hollow structure, can determine according to default grammes per square metre, size), and carry out to green body model light
Micro- reparation guarantees that as preset shape, green body, which has, carries out the adjustment of shrink position to corresponding radian, and embossment radian position will amplify hundred
/ tri-, guarantee that product embossing pattern is full；Product edge will reduce 3 percent, and product is avoided to be squeezed to be formed by pressure influence
Burr.
S4, electroforming: green body model is taken out after cooling, and is put into splendid attire after the green body model prepared is surface-treated
Electroforming is carried out in the electroforming cylinder of electrolyte, its surface is made to form uniform electroformed layer, and electroforming coining can be obtained after the completion of electroforming
Part, the electroforming imprint the electroforming of part with a thickness of 0.01mm；
S5, printing electroforming imprint part: the oil pressure mold in S2 being mounted on hydraulic press, electroforming coining part is chosen and places
In the cavity of oil pressure mold, carry out the printing of three-dimensional embossing, print out noble metal of the surface with impression pattern half at
Product；Wherein, the pressure of hydraulic press compacting is 20Mpa, and the oil pressure time is 20 seconds；
Significantly, since oil pressure technique can only carry out punching press to the structure on noble metal products surface, it is not capable of processing
Product with bending, dog-ear or negative angle, so during oil pressure, also need to bending, negative angle moulding it is expensive
Metal product makees empty avoiding design, i.e., increases clearance position on oil pressure mold and reserve away the position of material, if product bending, negative angle
When more, which makees empty avoiding processing in the correspondingly part of bending or negative angle can carry out oil directly on oil pressure mold
Pressure；If product is not bent, negative angle moulding, it is just not used as empty avoiding processing.
S6, punching: making a call to two holes in resulting noble metal surface of semi-finished, remove the filler in noble metal semi-finished product,
The filler is green body model prefabricated in S3, obtains noble metal finished product.
S7, product handling system: S6 noble metal finished product is modified, then your gold that surface has impression pattern can be made
Belong to finished product, welding manner fills two holes.
Embodiment 3
Present embodiment discloses a kind of manufacture crafts of noble metal products to include the following steps:
S1, layout design: design green body threedimensional model as needed by CNC mold design Software on Drawing and obtains base
Body three-dimensional models data；Matched oil pressure mold threedimensional model is designed according to green body threedimensional model, passes through CNC mold
Design software is drawn and obtains oil pressure mold three-dimensional modeling data；
S2, Mold Making: green body three-dimensional modeling data is imported into progress CNC die steel engraving in CNC engraving machine, is obtained
To green body mold, the manufacturing process of the oil pressure mold in the present embodiment includes；Oil pressure mold three-dimensional modeling data is imported into sharp
Ray machine device direct engraving die steel is produced oil pressure mold and is installed on hydraulic press, and laser engraving is according to laser engraving
Knife size determines whether engraving micro text and pattern, and the present embodiment laser engraving knife can draw 0.03mm thickness stroke, institute
Micro text and pattern can be carved.
By combining advanced CNC engraving technology that micro text and pattern is carved in die surface, by punching press, by mold
The product surface of the pattern transfer on surface.It can mass production.Manifestation mode is the eyes of people when observing tiny things, when
Character pattern does not see Chu in the case where minimum, is produced on product surface through this small character pattern, on the one hand
The craftsmanship of the production of product is enhanced, product is made to enhance aesthetics, artistic value itself is improved；On the other hand it plays
Anti-fake effect because micro text under mobile phone enlarging function or magnifying glass and microscopically observation just can be clearly
See character pattern, thus the production technology other people will not imitate easily, play anti-fake effect indirectly.
S3, cast green body model: filling the zinc magnesium alloy of liquid condition in the green body mold held successfully, cold to zinc magnesium alloy
But green body model can be cast out after；The melt of liquid condition is filled by the opened up mouth of a river position of green body mold in the present embodiment
Green body mold it is intracavitary, to open green body mold after melt cooled and solidified, green body model can be obtained.
S4, electroforming: the green body model prepared is put into filling electrolyte electroforming cylinder and carries out electroforming, forms its surface
Uniform electroformed layer, can be obtained electroforming coining part after the completion of electroforming, which imprints the electroforming of part with a thickness of 0.4mm；
S5, printing electroforming imprint part: the oil pressure mold in S2 being mounted on hydraulic press, electroforming coining part is chosen and places
In the cavity of oil pressure mold, carry out the printing of three-dimensional embossing, print out noble metal of the surface with impression pattern half at
Product；Wherein, the pressure of hydraulic press compacting is 4000Mpa, and the oil pressure time is 5 seconds；
S6, punching: making a call to two holes in resulting noble metal surface of semi-finished, remove the filler in noble metal semi-finished product,
The filler is green body model prefabricated in S3, obtains noble metal finished product；
S7, product handling system: S6 noble metal finished product is modified, then your gold that surface has impression pattern can be made
Belong to finished product；Since oil pressure die surface does not carry out the processing of the processes such as sandblasting, polishing, press polish, it is formed in step S5
With impression level without bright sand effect or the noble metal semi-finished product of fantasy coloured effect, step S7 just needs to include such as on surface
Lower processing step forms surface and had not only had impression level but also had bright sand effect or not only have impression level but also have
Then the noble metal finished product of fantasy coloured effect is filled two holes by way of additional processing accessory plugging hole, in addition, processing step
Suddenly include:
S71, it holds mould: reparation, shaping, the polishing of the firmly golden finished product of noble metal is handled；
Color is hung in S72, sandblasting: being beaten the surface in the firmly golden finished product of noble metal by sand-blasting machine with micron-sized quartz sand, is made it
The surface for forming uniform matt carries out hanging color by special liquid medicine, reaches the color of the firmly golden finished surface of noble metal, gloss
To consistent；
S73, manual press polish: mill is pressed on the surface of the firmly golden finished product of noble metal with special wolfram steel knife, agate knife, is formed bright
Color.
Embodiment 4
Present embodiment discloses a kind of manufacture crafts of noble metal products to include the following steps:
S1, layout design: design green body threedimensional model as needed by CNC mold design Software on Drawing and obtains base
Body three-dimensional models data；Matched oil pressure mold threedimensional model is designed according to green body threedimensional model, passes through CNC mold
Design software is drawn and obtains oil pressure mold three-dimensional modeling data；
S2, Mold Making: green body three-dimensional modeling data is imported into progress CNC die steel engraving in CNC engraving machine, is obtained
To green body mold, the manufacturing process of the oil pressure mold in the present embodiment includes；Oil pressure mold three-dimensional modeling data is imported into CNC
In engraving machine, engraving copper is public, and discharged on spark machine corrosion die steel using copper public affairs, carves out surface with impression
Pattern oil pressure mold, and be installed on hydraulic press, the oil pressure mold produced is sprayed according to the preset requirement of product
Sand, polishing, press polish processing, CNC engraving determine whether engraving micro text and pattern, the present embodiment carving according to graver size
Icking tool can draw 0.01mm thickness stroke, it is possible to carve micro text and pattern.
By combining advanced CNC engraving technology that micro text and pattern is carved in die surface, by punching press, by mold
The product surface of the pattern transfer on surface.It can mass production.Manifestation mode is the eyes of people when observing tiny things, when
Character pattern does not see Chu in the case where minimum, is produced on product surface through this small character pattern, on the one hand
The craftsmanship of the production of product is enhanced, product is made to enhance aesthetics, artistic value itself is improved；On the other hand it plays
Anti-fake effect because micro text under mobile phone enlarging function or magnifying glass and microscopically observation just can be clearly
See character pattern, thus the production technology other people will not imitate easily, play anti-fake effect indirectly.
S3, cast green body model: the melt zinc magnesium alloy of liquid condition is filled in the green body mold held successfully, to melt zinc
Green body model can be cast out after magnesium alloy is cooling；
S4, electroforming: the green body model prepared is put into electroforming cylinder and carries out electroforming, its surface is made to form uniform electroforming
Layer, can be obtained electroforming coining part after the completion of electroforming, which imprints the electroforming of part with a thickness of 0.25mm；
S5, printing electroforming imprint part: the oil pressure mold in S2 being mounted on hydraulic press, electroforming coining part is chosen and places
In the cavity of oil pressure mold, carry out the printing of three-dimensional embossing, print out noble metal of the surface with impression pattern half at
Product；Wherein, the pressure of hydraulic press compacting is 1500Mpa, and the oil pressure time is 6 seconds；
S6, punching: making a hole in resulting noble metal surface of semi-finished, removes the filler in noble metal semi-finished product,
The filler is green body model prefabricated in S3, obtains noble metal finished product；
S7, product handling system: S6 noble metal finished product is modified, then your gold that surface has impression pattern can be made
Belong to finished product.
Embodiment 5
Present embodiment discloses a kind of manufacture crafts of noble metal products to include the following steps:
S1, layout design: design green body threedimensional model as needed by CNC mold design Software on Drawing and obtains base
Body three-dimensional models data；Matched oil pressure mold threedimensional model is designed according to green body threedimensional model, passes through CNC mold
Design software is drawn and obtains oil pressure mold three-dimensional modeling data；
S2, Mold Making: oil pressure mold three-dimensional modeling data is directed respectively into progress CNC mould steel in CNC engraving machine
Material engraving, obtains oil pressure mold, carries out carry out sandblasting, polishing, pressure to the oil pressure mold produced according to the preset requirement of product
Light processing.Wherein, the manufacturing process of the green body mold in the present embodiment includes: (1) production mimeograph stencil model, and green body mold is three-dimensional
Model data is imported into wax spray machine, passes through one mimeograph stencil model of wax spray machine spray；(2) copperplate model is made, by green body
Mold three-dimensional modeling data is imported into CNC engraving machine, carves a copperplate model；(3) mimeograph stencil model or copperplate are utilized
Modelling ejection mould；Specifically, mimeograph stencil model or copperplate model are connected into mouth of a river position and are placed in a container；It will
Flexible glue is melted into liquid and pours into the container, and (mode of incision is reserved by when moulding for a point middle incision after flexible glue coagulation forming
The mouth of a river position flexible glue block is cut), take out the inside mimeograph stencil model or copperplate model, that is, formed a hollow green body mould
Tool, can mass production green body model using the green body mold.Which, which is similar to reverse mould mode, can make the base of any moulding
Body is not influenced by shape, but there are certain shortcoming in precision and size control top, can also determine to utilize according to green body moulding
Impact style makes green body, and impact style makes that control in precision and size is accurate, but product is necessary for not no negative angle
Product needs to guarantee product by die parting line, and there is certain limitation in moulding top.
By combining advanced CNC engraving technology that micro text and pattern is carved in die surface, by punching press, by mold
The product surface of the pattern transfer on surface.It can mass production.Manifestation mode is the eyes of people when observing tiny things, when
Character pattern does not see Chu in the case where minimum, is produced on product surface through this small character pattern, on the one hand
The craftsmanship of the production of product is enhanced, product is made to enhance aesthetics, artistic value itself is improved；On the other hand it plays
Anti-fake effect because micro text under mobile phone enlarging function or magnifying glass and microscopically observation just can be clearly
See character pattern, thus the production technology other people will not imitate easily, play anti-fake effect, certainly, this implementation indirectly
Example directly can also carve micro text and pattern in product surface by laser engraving and CNC engraving, make the production technology of product
Details is greatly improved.
S3, cast green body model: the melt zinc magnesium alloy of liquid condition is filled in the green body mold held successfully, to melt zinc
Green body model can be cast out after magnesium alloy is cooling；
Further, the present invention can also make green body model using following methods；By green body mold three-dimensional modeling data
It imported into wax spray machine, by one investment molding of wax spray machine spray, then can be produced using the method for investment wax casting
Green body model, and the surface treatment such as sanding and polishing is carried out to the green body model made.
S4, electroforming: the green body model prepared is put into electroforming cylinder and carries out electroforming, its surface is made to form uniform electroforming
Layer, can be obtained electroforming coining part after the completion of electroforming, which imprints the electroforming of part with a thickness of 0.25mm；
S5, printing electroforming imprint part: the oil pressure mold in S2 being mounted on hydraulic press, electroforming coining part is chosen and places
In the cavity of oil pressure mold, carry out the printing of three-dimensional embossing, print out noble metal of the surface with impression pattern half at
Product；Wherein, the pressure of hydraulic press compacting is 1000Mpa, and the oil pressure time is 8 seconds；
S6, punching: making a hole in resulting noble metal surface of semi-finished, removes the filler in noble metal semi-finished product,
The filler is green body model prefabricated in S3, obtains noble metal finished product；
S7, product handling system: S6 noble metal finished product is modified, then your gold that surface has impression pattern can be made
Belong to finished product.
By above-mentioned processing step, can be made hardness is high, wearability is strong, embossing pattern it is clear it is full, have it is better
The firmly golden product of the noble metal of stereo space sense, it is low, easy to wear that the present invention can effectively overcome existing product hardness, surface
Decorative pattern is also not fine enough, and the problem of shortage stereoscopic effect.The firmly golden product of noble metal obtained not only has through the invention
Hardness and toughness are unlikely to deform and wear, and can produce clear, fine complete three-dimensional patterns, and have more
Good stereoscopic visual effect, the firmly golden product of the noble metal is more welcome on the market, and market prospects are more wide.
Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention.
In technical idea scope of the invention, various modifications and modification can occur, all those skilled in the art according to
Upper description done retouching, modification or equivalent replacement, belong to the range that the present invention is protected.
Claims (19)
1. a kind of production method of noble metal products, it is characterised in that: the production method is by the hard gold process of 3D and oil pressure technique
In conjunction with including the following steps:
S1, preform blank model；
S2, electroforming: being put into the electroforming cylinder for containing electrolyte after the green body model prepared is surface-treated and carry out electroforming,
So that its surface is formed uniform electroformed layer, electroforming coining part can be obtained after the completion of electroforming, which imprints the electroforming thickness of part
And weight can be preset as needed；
S3, printing electroforming imprint part: oil pressure mold being mounted on hydraulic press, electroforming coining part is chosen and is placed on oil pressure mold
Cavity in, carry out oil pressure, printing stereo embossing forms preset surface effect, including impression level, bright sand effect,
Fantasy coloured effect or coining micro text；
S4, punching simultaneously remove blank: at least one hole is beaten on the surface of the good noble metal semi-finished product of oil pressure, removal noble metal half at
Filler in product, i.e. prefabricated green body model in step S1 leave noble metal electroformed layer to obtain noble metal finished product.
2. a kind of production method of noble metal products according to claim 1, it is characterised in that: the step S1 manufactures base
Before body Model further include: layout design, the layout design include the base being related in the picture proof and step process of finished product
Figure modelling, size, corresponding oil pressure finished product die and green body mould structure and size design, i.e., deisgn product three-dimensional mould as needed
Type；Matched product oil compression mould and green body mold are produced according to product threedimensional model.
3. a kind of production method of noble metal products according to claim 1, it is characterised in that: the step S1 prefabricated blank
Body Model includes: reverse mould production or punching press production, and the reverse mould production is also known as investment wax casting method, i.e., in the green body mould held successfully
The melt that liquid condition is filled in tool can cast out green body model after melt is cooling；The punching press production is also known as oil pressure
Green body is subjected to punching press by making the stamping die of green body and obtains green body, after green body model is made, to model hold mould,
It repairs, processing, obtains the green body model of surface exquisiteness.
4. a kind of production method of noble metal products according to claim 3, it is characterised in that: the melt be wax,
Aluminium, silver, zinc, lead, tin, silica gel or alloy.
5. a kind of production method of noble metal products according to claim 3, it is characterised in that: the green body mold pours
Casting manufacturing process includes: firstly, making spray mimeograph stencil or engraving metallograph model or playing version by hand, after then carrying out multiple mould
Obtain mold, wherein the production spray mimeograph stencil includes: that the data of the green body mold threedimensional model are imported into wax spray machine
In, pass through one mimeograph stencil model of wax spray machine spray；The copperplate engraving model includes: by the green body mold threedimensional model
Data are imported into CNC engraving machine, carve a metallograph model；It is described to carry out obtaining mold after multiple mould including: by mimeograph stencil
Model or metallograph model connect mouth of a river position and are placed in a container；Flexible glue or alloy are melted into liquid and pour into the appearance
In device, point middle incision after flexible glue or alloy graining molding, the mode of the incision is will by the mouth of a river position reserved when moulding
Perhaps alloy block cuts the mimeograph stencil model or copperplate model for taking out the inside to flexible glue block, that is, forms a hollow green body mold,
It can mass production green body model using the green body mold.
6. a kind of production method of noble metal products according to claim 5, it is characterised in that: the metallograph model is
Copperplate model.
7. a kind of production method of noble metal products according to claim 3, it is characterised in that: the punching press makes green body
Process include three kinds of modes, be respectively as follows:
(1) mold is gone out using CNC engraving and machine direct engraving, it is enterprising to be mounted on hydraulic press after then post-processing to mold
Row assembling；
(2) mold is gone out using laser engraving machine direct engraving, is mounted on hydraulic press and carries out after then being post-processed to mold
Assembling；
(3) engraving copper is public, and discharged on spark machine corrosion die steel using copper public affairs, carries out after then post-processing to mold
Assembling.
8. a kind of production method of noble metal products according to claim 7, it is characterised in that: the post-processing includes:
Die surface effect is made, including carves out surface with impression pattern, bright sand face and/or skin texture line.
9. a kind of production method of noble metal products according to claim 1, it is characterised in that: in step s 2, described
The material that electroforming imprints part is gold, silver, k gold, platinum or porpezite any of them, and electroforming is with a thickness of 0.01-0.4mm.
10. a kind of production method of noble metal products according to claim 1, it is characterised in that: the step S3 is used
Punching press makes the finished product stamping die production method of electroforming workpiece, including three kinds of modes:
(1) data of oil pressure mold threedimensional model are imported into progress CNC die steel engraving in CNC engraving machine；
(2) data of oil pressure mold threedimensional model are imported into progress laser die steel engraving in laser engraving machine；
(3) engraving copper is public, and discharged on spark machine corrosion die steel using copper public affairs, carries out after then post-processing to mold
Assembling.
11. a kind of production method of noble metal products according to claim 10, it is characterised in that the post-processing includes:
Die surface effect is made, including carves out surface with impression pattern, bright sand face, illusion-colour, skin texture line and/or miniature text
Word pattern.
12. a kind of production method of noble metal products according to claim 7 or 10, it is characterised in that: the punching press system
The Impact direction of work is upper and lower and/or left and right and/or front and back, and the equipment that the punching press production uses further includes sliding block, according to not
With the sliding block is adjusted after the type confirmation product Impact direction of product, pass through the Impact direction that sliding block changes punching press.
13. a kind of production method of noble metal products according to claim 7 or 10, it is characterised in that: the CNC engraving
Engraving micro text and pattern is determined whether according to graver size, the CNC graver can draw 0.01mm or less thickness
Stroke can carve micro text and pattern；The laser engraving, which can draw 0.03mm or less thickness stroke, can carve micro text figure
Case.
14. a kind of production method of noble metal products according to claim 1, it is characterised in that: in step s3, described
The pressure of hydraulic press compacting is 20-4000Mpa, and the oil pressure time is 5-20 seconds, and the oil pressure is by the way of being cold-pressed drum.
15. a kind of production method of noble metal products according to claim 1, it is characterised in that: will in the step S4
The surface hole Da Liangge of the good noble metal semi-finished product of oil pressure, and two pore size distributions are in the corresponding upper and lower/left and right/front and back of workpiece
Position, choose surface relative smooth, without the biggish corresponding direction of decorative pattern and relative position, convection current formed, to easily remove
The blank of filling.
16. a kind of production method of noble metal products according to claim 1, it is characterised in that: further comprise the steps of: S5,
Product handling system: S4 noble metal finished product is modified, then surface can be made and imitate with impression pattern or surface with bright sand
The noble metal finished product of fruit or fantasy coloured effect.
17. a kind of production method of noble metal products according to claim 1, it is characterised in that: the step S2 is also wrapped
It includes: being formed after carving micro text and pattern by the noble metal surface of semi-finished of laser engraving and CNC engraving directly after electroforming
Noble metal finished product.
18. a kind of production method of noble metal products according to claim 1, it is characterised in that: further comprise the steps of: S6,
At least one hole that the surface of the good noble metal semi-finished product of oil pressure is beaten is filled, is sealed by welding manner or additional processing accessory
The mode of plug-hole fills at least one hole.
19. a kind of production method of noble metal products according to claim 16, it is characterised in that: for institute in step S3
The surface of formation is with impression level without bright sand effect or the noble metal semi-finished product of fantasy coloured effect, the step S5 tool
Body includes:
S51, it holds mould: reparation, shaping, the polishing of the firmly golden finished product of noble metal is handled；
Color is hung in S52, sandblasting: being beaten the surface in the firmly golden finished product of noble metal by sand-blasting machine with micron-sized quartz sand, is formed it into
The surface of uniform matt, carries out hanging color by special liquid medicine, and the color of the firmly golden finished surface of noble metal, gloss is made to reach one
It causes；
S53, manual press polish: mill is pressed on the surface of the firmly golden finished product of noble metal with special wolfram steel knife, agate knife, forms bright color
Pool；
By step S51, S52 and S53, forms surface and not only had impression level but also there is bright sand effect or both have floating
Carving pattern level has the noble metal finished product of fantasy coloured effect again.
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| CN111264982A (en) * | 2020-01-20 | 2020-06-12 | 上海晓泉珠宝有限公司 | Method for manufacturing cross coin |
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| CN113699563A (en) * | 2021-08-24 | 2021-11-26 | 深圳市联合蓝海黄金材料科技股份有限公司 | Production method of hard gold round ball |
| CN114770059A (en) * | 2022-03-31 | 2022-07-22 | 上汽通用五菱汽车股份有限公司 | Manufacturing process of mold with horn meshes |
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