CN103658530A - Lost-wax casting method for decorative part of glasses - Google Patents
Lost-wax casting method for decorative part of glasses Download PDFInfo
- Publication number
- CN103658530A CN103658530A CN201210338882.3A CN201210338882A CN103658530A CN 103658530 A CN103658530 A CN 103658530A CN 201210338882 A CN201210338882 A CN 201210338882A CN 103658530 A CN103658530 A CN 103658530A
- Authority
- CN
- China
- Prior art keywords
- wax
- lost
- casting method
- glasses
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a lost-wax casting method for a decorative part of glasses. The lost-wax casting method comprises the steps of obtaining an original shape of a wax sample and baking gypsum, wherein a forming mold is utilized for manufacturing plastic into the original shape of the wax sample by an injection molding machine in the process of obtaining the original shape of the wax sample. The lost-wax casting method provided by the invention has the beneficial effects that according to the actual production condition of the decorative part of the glasses, the manufacture of the original shape of the wax sample is improved, and more original shapes are obtained by utilizing the injection of the injection molding machine. The lost-wax casting method provided by the invention has the advantages that the original shape injected out is not easily deformed, the surface finish degree is good, the number of cavities of the mold can be determined according to the order, and the mass production is convenient.
Description
Technical field
The present invention relates to a kind of production method of glasses gadget, relate in particular to a kind of lost-wax casting method of glasses gadget.
Background technology
Wax-loss casting process is a kind of ancient and important casting method, in bronze ware is manufactured, extensively adopts.Wax-loss casting process is according to the plasticity of beeswax and hot volatilization feature, first beeswax is engraved as and needs the wax of shape sample, then at wax sample outer wrapping clay a reserved duck eye, dry rear roasting, make wax sample gaseous volatilization, clay becomes ceramic shell simultaneously, obtains required metal casting embryo.The principle of modern lost-wax casting is the same therewith, just complex precise more.
Lost-wax casting method has suction pouring, centrifugal casting and vacuum centrifugal casting etc., and the roughly process of lost-wax casting is: by the former silica gel mould that is molded into, after the mould that comes unglued, casting obtains wax sample, by wax sample planting wax tree, put into sleeve and pour into high temperature gypsum, gypsum is through vacuumizing, air-set, after oven dry, cast, after metal is cooling, plaster mold is put into cold water is fried to be washed, taken out pickling after foundry goods, rinse, cut blank and carry out tumbling, then hold mould and inlay and surface treatment.
Particularly, investment wax casting needs mimeograph stencil, and the batch making of mimeograph stencil needs rubber pattern.The making of planting mould has relied on version teacher's manual skill completely, by saw, and file, it is clearly demarcated that the means such as weldering and moat are produced corner angle, svelteness, the master of any surface finish.It is in jewellery manufacture craft, to require the highest operation, require surface, hollow out position and the back side of made wax sample bright and clean seamless, require the each several part of wax sample rational in infrastructure, gemmy position dimension is accurately seamless, and some also requires mosaic site to carry out preprocessing.For the wax sample of labyrinth, because parts are more, adopt general welding method very difficult, need to complete making by the method for pendulum embryo.Be ready to just can enter investment wax casting technological process after mimeograph stencil.
The technological process of investment wax casting is: the compacting rubber moulding-mould-casting of coming unglued (mould)-finishing wax sample (weldering wax sample) vacuumize-gypsum of-planting wax tree (weighing)-fillings plaster cylinder-gypsum natural coagulation-cure gypsum---molten gold,---explode and the wash gypsum---flushing of casting, pickling, cleaning-cropping base-hold mould.Introduce respectively each operation below.
In finishing wax sample step, general, more or less there are some problems in the wax sample taking out after casting.For overlap, multiple limit, fresh idea is unintelligible or the defect such as scrap (bridge) can be used knife blade smoothing.For sand holes, disconnected pawl, can carry out repair welding with weldering wax device.What aperture was obstructed can penetrate with capillary.Distortion for wax sample can be proofreaied and correct in the hot water of 40-50 ℃.
In planting wax tree step, by the wax sample of making in a certain order, with weldering wax device, be along the circumferential direction hierarchically welded on successively on a rod wax, finally obtain the wax tree that a shape exactly likes large tree.The basic demand of planting wax tree is that wax sample will be arranged in order, between can not contact, as far as possible many again wax sample is welded on wax tree, to meet the needs of batch production.
In addition, before planting wax tree, should first to rubber chassis, weigh, finish wax tree and weigh again, the result of weighing for twice is subtracted each other the weight that can draw wax tree.The weight of wax tree is converted into the weight of metal according to the density ratio of paraffin and cast metal, just can estimates the amount of metal of casting.
In filling with gypsum step, the wax tree of having planted is put to stainless steel cylinder together with chassis, by the land plaster of corresponding weight and water, (ratio is generally 2-2.5:1, water distilled water) stir into calcium plaster, after vacuumizing for the first time, calcium plaster is slowly injected along inwall, must guard against calcium plaster is directly poured on wax tree.Until calcium plaster did not have the about 1cm of wax tree, vacuumize for the second time.Naturally place subsequently 6-12 hour to guarantee solidifying of gypsum.
In curing gypsum step, curing of plaster mold is the important procedure that guarantees that casting is normally carried out, and Main Function is dewaxing, dry and casting insulation.Take the curing as example of 18K gold, dewaxing temperature is 0-350 ℃, and temperature retention time is 2 hours; Baking temperature is 350-700 ℃, and temperature retention time is 2-3 hour; Cast temperature is 50-600 ℃, and temperature retention time is 1-2 hour.
The general process of curing is first electric furnace to be preheating to initial temperature, and the plaster mold mouth of a river is put into stove downwards, to facilitate wax liquid to flow out evaporation.At initial flat-temperature zone constant temperature, after one hour, at the interval with 1-2 hour, progressively heat up and constant temperature.Noting heating up, (or cooling) speed should remain on 100-200 ℃/h, otherwise the crackle of the too fast easy formation plaster mold that heats up, the serious plaster mold that may cause damages or scraps.Heating up, it is not thorough easily to cause again slowly something lost wax or plaster mold to be dried, and affects casting quality.The time of curing of plaster mold depends primarily on size and the complexity of Jin Shu, can adjust as the case may be.
When curing of plaster mold draws to an end, start melt the metal having prepared and keep molten condition.Treat that plaster mold insulation is complete, metal water is injected from the mouth of a river, complete casting.Two kinds of common casting modes are that suction pouring machine is inhaled casting and the casting of vacuum induction centrifugal casting machine.
Casting blank out, certainly exists the phenomenons such as " mouth of a river ", " layering " because of factors such as technique, moulds, " repairing embryo " carries out preparatory processing repairing to blank.Repair embryo technique and be exactly utilize the instruments such as file, cutter, gong machine, drilling machine by frustrating, scrape, choose, bore, the mode such as mill repairs smooth by " mouth of a river " on blank, " layering ".According to the feature of repairing embryo technique, repair embryo and can be divided into again the links such as " repairing the mouth of a river ", " boring mill ", " shaping ".
A large amount of production practices show, when making the former state of wax sample, wax sample is yielding, and poor surface smoothness is difficult to set according to the actual requirements the cave number of mould.
Summary of the invention
The object of the present invention is to provide a kind of lost-wax casting method of glasses gadget, the problems such as the wax sample mutability occurring while utilizing existing lost wax process to manufacture glasses gadget to solve, poor surface smoothness, inconvenient volume production.
In order to address the above problem, the invention provides a kind of lost-wax casting method of glasses gadget, it comprises the former state of acquisition wax sample and the step of curing gypsum, wherein, in obtaining the process of wax sample former state, by injection machine, utilize mould plastics to be made to the former state of wax sample.
According to a kind of preferred embodiment of the lost-wax casting method of above-mentioned glasses gadget, wherein, described plastics are nylon.
According to a kind of preferred embodiment of the lost-wax casting method of above-mentioned glasses gadget, wherein, the material of the core rod of described mould is mould steel 738.
According to a kind of preferred embodiment of the lost-wax casting method of above-mentioned glasses gadget, wherein, in curing the process of gypsum, stoving temperature is 650 ℃-750 ℃.
According to a kind of preferred embodiment of the lost-wax casting method of above-mentioned glasses gadget, wherein, in curing the process of gypsum, stoving temperature is 700 ℃.
The present invention, according to the practical condition of glasses gadget, improves the making of the former state of wax sample, utilizes the injection of injection machine to obtain more former state.Its advantage is, injection former state is out not yielding, and surface smoothness is good.Can determine according to order and facilitate volume production by the cave number of mould.
The specific embodiment
Below in conjunction with the specific embodiment, the present invention is described in further details.
Be with one of main distinction of prior art, the present invention no longer adopts beeswax to make wax sample, but utilizes injection machine injection-moulded plastic and obtain.
When utilizing lost wax process to produce glasses gadget, comprise a plurality of processing steps, for example former state of the improved acquisition wax of emphasis of the present invention sample and the step of curing gypsum, in the present invention, in obtaining the process of wax sample former state, by injection machine, utilize mould plastics to be made to the former state of wax sample.
Preferably, plastics are nylon.The material of the core rod of mould is mould steel 738.In curing the process of gypsum, stoving temperature is 650 ℃-750 ℃, and more preferably, stoving temperature is 700 ℃.
To sum up, the present invention, according to the practical condition of glasses gadget, improves the obtain manner of the former state of wax sample.Utilize the injection of injection machine to obtain more former state.Like this, injection former state is out not yielding, and surface smoothness is good.The cave number of determining mould according to order, facilitates volume production.And nylon is more suitable for making former state.(plastics are completely separated when curing with gypsum) completely can dewax when its characteristic is to cure.Other technological processes comprise that the making flow process of the complete and existing wax sample of production process is the same.
Particularly, in injection moulding former state flow process, for Mold Making, can select die steel 738 to make core rod according to user's requirement, guarantee the quality of mould and guarantee to penetrate number of times to reach more than 10 times.
For former state volume production and repairing, the former state of obtaining by injection moulding is not yielding and flexible, and through product classification, product defective can carry out kind of a tree again and enter next link after manual repairing.
For baking and banking up with earth, injection plastic cement former state (be nylon, have another name called TR90) temperature in the process of baking and banking up with earth is out controlled at about 700 ° the bests, and plastic cement products part and gypsum part can come off completely, obtain the product of any surface finish.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not depart from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.Change within the scope of the present invention all or within being equal to scope of the present invention is all included in the invention.
Claims (5)
1. a lost-wax casting method for glasses gadget, comprises and obtains the former state of wax sample and the step of curing gypsum, it is characterized in that, in obtaining the process of wax sample former state, by injection machine, utilizes mould plastics to be made to the former state of wax sample.
2. the lost-wax casting method of glasses gadget according to claim 1, is characterized in that, described plastics are nylon.
3. the lost-wax casting method of glasses gadget according to claim 1, is characterized in that, the core rod material of described mould is mould steel 738.
4. the lost-wax casting method of glasses gadget according to claim 1, is characterized in that, in curing the process of gypsum, stoving temperature is 650 ℃-750 ℃.
5. the lost-wax casting method of glasses gadget according to claim 4, is characterized in that, in curing the process of gypsum, stoving temperature is 700 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338882.3A CN103658530A (en) | 2012-09-14 | 2012-09-14 | Lost-wax casting method for decorative part of glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338882.3A CN103658530A (en) | 2012-09-14 | 2012-09-14 | Lost-wax casting method for decorative part of glasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103658530A true CN103658530A (en) | 2014-03-26 |
Family
ID=50297992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210338882.3A Pending CN103658530A (en) | 2012-09-14 | 2012-09-14 | Lost-wax casting method for decorative part of glasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103658530A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086751A (en) * | 1992-11-07 | 1994-05-18 | 林汉水 | Complicated non deformable high-accuracy parts method for making |
| CN1278757A (en) * | 1997-09-16 | 2001-01-03 | 施图尔姆鲁格有限公司 | Injection mold apparatus for producing a pattern and method of mold use |
| JP2002254137A (en) * | 2001-03-02 | 2002-09-10 | M Yasui & Co Ltd | Injection molding apparatus and mold for investment casting |
| CN1689725A (en) * | 2004-04-29 | 2005-11-02 | 侯文清 | Wax mould manufacturing method for golf club head |
| CN1794435A (en) * | 2005-11-10 | 2006-06-28 | 北京科技大学 | Method of preparing electron packaging material using powder injection shaping/pressure fusion dipping method |
-
2012
- 2012-09-14 CN CN201210338882.3A patent/CN103658530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086751A (en) * | 1992-11-07 | 1994-05-18 | 林汉水 | Complicated non deformable high-accuracy parts method for making |
| CN1278757A (en) * | 1997-09-16 | 2001-01-03 | 施图尔姆鲁格有限公司 | Injection mold apparatus for producing a pattern and method of mold use |
| JP2002254137A (en) * | 2001-03-02 | 2002-09-10 | M Yasui & Co Ltd | Injection molding apparatus and mold for investment casting |
| CN1689725A (en) * | 2004-04-29 | 2005-11-02 | 侯文清 | Wax mould manufacturing method for golf club head |
| CN1794435A (en) * | 2005-11-10 | 2006-06-28 | 北京科技大学 | Method of preparing electron packaging material using powder injection shaping/pressure fusion dipping method |
Non-Patent Citations (2)
| Title |
|---|
| 任明星等: "三维金属微构件的微熔模精密铸造成形", 《实用技术》, vol. 8, no. 1, 28 February 2011 (2011-02-28), pages 66 - 69 * |
| 温平等: "《新编铸造技术数据手册》", 30 April 2012, 机械工业出版社, article "新编铸造技术数据手册", pages: 974 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102248125B (en) | Simplified process method of lost wax casting | |
| CN104493094A (en) | Rapid precise casting technology based on photocuring 3D printing technique | |
| CN109759543B (en) | Cast copper sculpture casting production method | |
| CN107470556A (en) | A kind of water-soluble wax hollow wax matrix manufacture craft of high finished product rate | |
| CN105728650A (en) | Precision casting method | |
| CN107931525A (en) | A kind of method for controlling model casting casting solidification | |
| CN106579672B (en) | Sapporo is embedding | |
| CN103769532A (en) | Method for preparing hollow wax mold by utilization of water-soluble wax | |
| CN108015231A (en) | A kind of investment precision casting technology | |
| CN109158542A (en) | Ceramic mold casting PS unitary mould and its quick cast method based on selective laser sintering | |
| CN102248122A (en) | Female mould used for making wax mould in dewaxing casting process as well as manufacturing method and application thereof | |
| CN111069539A (en) | Casting process of impeller of large dredge pump | |
| CN110385400A (en) | A kind of process for dewaxing of 3D printing PS powder wax-pattern | |
| CN100519455C (en) | Glass utensil mould production method | |
| CN205732814U (en) | A kind of running gate system wax-pattern of moltening mold castings | |
| CN202207774U (en) | Investment shell for casting castings with slender holes | |
| CN109202018A (en) | A kind of the precision-investment casting Deformation control technique and its mold of casting | |
| CN107150547A (en) | The preparation method that a kind of coloured glaze is inlaid with gold | |
| CN101623907B (en) | Method for preparing three-dimensional photoelasticity analysis model by applying fast-forming plaster mold technique | |
| CN103658530A (en) | Lost-wax casting method for decorative part of glasses | |
| CN110052583A (en) | Precise casting process of hollow guide blade | |
| CN104475680A (en) | Method for precisely casting cylinder head | |
| CN107030256A (en) | A kind of casting method of metal implements | |
| CN107881361A (en) | A kind of preparation technology of copper casted sculpture material and copper casted sculpture | |
| CN107470562A (en) | A kind of lost wax casting technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |