CN110842169A

CN110842169A - Casting method of micro sculpture

Info

Publication number: CN110842169A
Application number: CN201911221062.4A
Authority: CN
Inventors: 杨范龙
Original assignee: Hunan Ming Art Sculpture Co Ltd
Current assignee: Hunan Ming Art Sculpture Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-02-28

Abstract

The invention discloses a method for casting a miniature sculpture, which comprises the steps of brushing a prototype layer with the thickness of 5mm in a hollow gypsum female die by using a gypsum material with the temperature of 60 ℃, and then pouring α gypsum powder with the strength of more than 6MPa to form a support of the prototype layer, wherein the support is used as a gypsum core, so that the use of more activities is reduced, the process characteristics such as patterns and the like are clearer, and the production cost is lower.

Description

Casting method of micro sculpture

[ technical field ] A method for producing a semiconductor device

The invention belongs to the technical field of sculpture processes, and particularly relates to a casting method of a miniature sculpture.

[ background of the invention ]

With the improvement of living standard of people, various small miniature casting artworks with antique colors and antique fragrances after surface coloring treatment are favored by people, for example: human images, Buddha images, animal images, lamp ornaments and the like are increasingly demanded. The size of the statue of the micro sculpture is generally 0.8-1.5cm, and the selection of the casting process determines the quality of the micro sculpture to a great extent due to the limitation of the size of the micro sculpture.

The common casting process in the prior art is resin sand casting, and the resin sand casting has the defects of roughness, no vivid modeling and no complex modeling; the master die is generally made of materials such as gypsum, 191 resin and the like, the die opening difficulty is high, a plurality of loose blocks need to be made, and thick coating needs to be applied. The cast product has a plurality of loose piece lines, the lost process is vivid after polishing, and the cost is higher due to the waste of labor and materials.

Therefore, it is required to provide a new method of casting a micro-statue to solve the above technical problems.

[ summary of the invention ]

The invention aims to provide a casting method of a micro sculpture, and the produced product has clear process characteristics and low production cost.

In order to solve the above technical problems, the present invention provides a method for casting a micro sculpture, the method comprising the steps of:

and step S1, preparing the gypsum material according to the required material.

And step S2, according to the manufacturing size, using 50 ℃ full-transparent heating forming silicon rubber to manufacture a sculpture prototype.

And step S3, manufacturing two female molds on the sculpture prototype by using the gypsum material, reserving a pouring gate, and demolding after the gypsum material is hardened and air-dried to obtain the gypsum female molds.

And step S4, brushing a prototype layer with the thickness of 5mm on the gypsum material at the temperature of 60 ℃ in the hollow gypsum female die, and then pouring α gypsum powder with the strength of more than 6MPa to form a support of the prototype layer to serve as a gypsum core.

And step S5, assembling the gypsum female die and the gypsum core into a model, and peeling the model layer when the model layer is heated to Microsoft by a hot baking gun.

And step S6, pouring the smelted copper alloy solution on a model through a centrifugal machine, and then cooling, solidifying, polishing and electroplating to manufacture the micro sculpture.

Preferably, the gypsum material comprises, by mass, α gypsum powder 69.2%, quartz sand 25%, iron oxide powder 0.5%, magnesium sulfate 4%, sodium gluconate 0.5%, and alkali fiber 0.8%.

Preferably, the granularity of the quartz sand is 70-200 meshes, the water content is less than or equal to 0.25 percent, and the mud content is less than or equal to 1 percent.

Preferably, after the step S4 and before the step S5, the method further includes: and step S41, coating a layer of coating with the thickness less than 0.1mm on the gypsum core.

Compared with the prior art, the casting method of the micro sculpture uses α gypsum powder with the strength of more than 6MPa to cast to form the support of the prototype layer, and the gypsum core is used to ensure that the prototype layer is not deformed and has good reliability, most patterns and small concavo-convex models are not used as loose pieces except for larger concavo-convex surfaces, and the patterns and other artistic characteristics are clear after heating and stripping, and the production cost is low.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a flowchart illustrating a method of casting a micro sculpture according to an embodiment of the present invention.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the present invention provides a method of casting a micro sculpture, the method including the steps of:

and step S1, preparing the gypsum material according to the required material.

In the embodiment, the gypsum material comprises, by mass, α gypsum powder 69.2%, quartz sand 25%, iron oxide powder 0.5%, magnesium sulfate 4%, sodium gluconate 0.5%, and alkali fiber 0.8%.

Wherein, more preferably, the granularity of the quartz sand is 70-200 meshes, the water content is less than or equal to 0.25 percent, and the mud content is less than or equal to 1 percent.

Preferably, the method further comprises the following steps: and step S41, coating a layer of coating with the thickness less than 0.1mm on the gypsum core to ensure that the process characteristics such as patterns and the like are clear.

Compared with the prior art, the casting method of the micro sculpture uses α gypsum powder with the strength of more than 6MPa to cast to form the support of the prototype layer, and the gypsum core is used, so that the deformation of the prototype layer is avoided, the reliability is good, the use of more loose pieces can be reduced, most patterns and small concavo-convex models are not used as the loose pieces except for larger concavo-convex surfaces, the artistic characteristics of the patterns and the like after heating and stripping are clear, and the production cost is low.

While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims

1. A method of casting a micro-statue, the method comprising the steps of:

step S1, preparing a gypsum material according to the required material;

step S2, according to the manufacturing size, using 50 ℃ full transparent heating forming silicon rubber to manufacture a sculpture prototype;

step S3, manufacturing two female molds on the sculpture prototype by using the gypsum material, reserving a pouring gate, and demolding after the gypsum material is hardened and air-dried to obtain the gypsum female molds;

step S4, brushing a prototype layer with the thickness of 5mm on the gypsum material with the temperature of 60 ℃ in the hollow gypsum female die, and then pouring α gypsum powder with the strength of more than 6MPa to form a support of the prototype layer to serve as a gypsum core;

step S5, assembling the gypsum female die and the gypsum core into a model, and peeling off the model layer when the model layer is heated to Microsoft by a hot baking gun;

2. A method of casting a micro-sculpture as claimed in claim 1, wherein the gypsum material is composed of, by mass, α gesso 69.2%, quartz sand 25%, iron oxide powder 0.5%, magnesium sulfate 4%, sodium gluconate 0.5%, and alkali fiber 0.8%.

3. The novel process for casting a micro-sculpture according to claim 2, wherein the quartz sand has a particle size of 70-200 meshes, a water content of 0.25% or less, and a mud content of 1% or less.

4. The process of casting a micro-sculpture according to claim 1, wherein after said step S4, and before said step S5, said process further comprises:

and step S41, coating a layer of coating with the thickness less than 0.1mm on the gypsum core.