阅读说明：本技术 一种黄铜沙工艺品及该黄铜沙工艺品的制作方法 (Brass sand handicraft and manufacturing method thereof ) 是由 苏玉彬 于 2021-09-13 设计创作，主要内容包括：本发明涉及工艺品加工技术领域,具体为一种黄铜沙工艺品及该黄铜沙工艺品的制作方法,其通过制备粗胚并使粗胚磁化使其吸附喷涂层,使得喷涂层能够清楚地反馈出粗胚上的造型及纹路,且由于喷涂层是依靠磁力吸附在粗胚上,因此不会出现气泡、沙眼或变形问题,能够有效减少后期对工艺品的打磨、修缮,该工艺品通过粗胚来支撑喷涂层,在避免喷涂层受外力产生形变的同时能够显著降低生产成本,具有实用意义和推广价值,预期能够产生良好的经济效益。(The invention relates to the technical field of artware processing, in particular to a brass sand artware and a manufacturing method thereof.)

1. The manufacturing method of the brass sand handicraft is characterized by comprising the following steps:

(a) mixing conductive thermosetting resin with iron powder, fully stirring, injecting and curing the mixture to form a handicraft coarse blank with an opening inside;

(b) after being blended, the gypsum powder is uniformly coated on the surface of the rough blank, and the gypsum layer is cured and the thickness of the gypsum layer is not less than 1 mm;

(c) crushing the brass sand and the iron powder to a nano size according to a mass ratio of 8:1, and stirring the obtained brass powder and the iron powder for 10Min in a stirring device at 50-60 ℃;

(d) adding 1-5% of thermosetting resin in total mass fraction into the stirring device in the step (c) and stirring for 5 Min;

(e) the electromagnet is inserted into the opening of the rough blank, and the iron core of the electromagnet is abutted against the inner wall of the rough blank to magnetize the rough blank of the handicraft;

(f) adding the mixture obtained in the step (d) into a spraying device and uniformly spraying the mixture on the outer surface of the rough blank;

(g) and (3) locally heating the sprayed layer by using a heating device to abut against the sprayed layer so as to condense the local brass powder and iron powder, and then repeatedly carrying out the heating step on the replaced part so as to condense the sprayed layer on the outer surface of the rough blank.

2. The method for manufacturing the brass sand handicraft as claimed in claim 1, wherein the method comprises the following steps: the particle size of the iron powder added in the step (a) is 300-500 mu m, and the added iron powder is not less than 20 percent of the total mass fraction.

3. The method for manufacturing the brass sand handicraft as claimed in claim 1, wherein the method comprises the following steps: the conductive thermosetting resin is embodied using a polyamide resin mixed with 5% nickel-coated graphite powder and 1% conductive carbon black.

4. The method for manufacturing the brass sand handicraft as claimed in claim 1, wherein the method comprises the following steps: the thickness of the sprayed layer is not less than 2 mm.

5. The method for manufacturing the brass sand handicraft as claimed in claim 1, wherein the method comprises the following steps: the heating device specifically adopts an electric soldering iron, the mixture can be sprayed to carry out secondary spraying on the depression of the condensation part, and the electric soldering iron is used for propping against the secondary spraying part to condense the condensation part to realize repair.

6. A brass sand artwork according to any one of claims 1-5, wherein: the handicraft is made by the manufacturing method of the brass sand handicraft.

Technical Field

The invention relates to the technical field of handicraft processing, in particular to a brass sand handicraft and a manufacturing method thereof.

Background

Brass is an alloy consisting of copper and zinc, is called as common brass, and if it is a plurality of alloys consisting of more than two elements, it is called as special brass, and brass has strong wear-resisting property, and is often used for manufacturing valves, water pipes, connecting pipes of internal and external machines of air conditioners, radiators, etc. Brass is also commonly used for the preparation of artworks because of its particular luster and hard texture, and is often stored in sand-like granules because of the inconvenience of handling and transporting the brass in bulk form.

The brass artware can be generally divided into a solid artware and a hollow artware according to the structure, the solid artware is generally cast by adopting molten brass, but the manufacturing cost of the solid artware is far higher than that of the hollow artware due to the high price of copper, the manufacturing process requirement is high, and otherwise the problems of deformation, sand holes, bubbles and the like can occur; the hollow handicraft is usually made of copper plates, the hollow handicraft is formed by welding the copper plates processed into a certain shape, the cost is far lower than that of a solid handicraft, but the hollow handicraft is easy to deform due to the lack of support and the external force, and aiming at the problems, if the processing technology can be improved on the premise of reducing the cost and ensuring the performance of the brass handicraft, the hollow handicraft has positive significance for the technical development in the field.

Disclosure of Invention

The invention aims to provide a manufacturing method of a brass sand handicraft, which aims to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme that the method comprises the following steps:

(a) mixing conductive thermosetting resin with iron powder, fully stirring, injecting and curing the mixture to form a handicraft coarse blank with an opening inside;

(b) after being blended, the gypsum powder is uniformly coated on the surface of the rough blank, and the gypsum layer is cured and the thickness of the gypsum layer is not less than 1 mm;

(c) crushing the brass sand and the iron powder to a nano size according to a mass ratio of 8:1, and stirring the obtained brass powder and the iron powder for 10Min in a stirring device at 50-60 ℃;

(d) adding 1-5% of thermosetting resin in total mass fraction into the stirring device in the step (c) and stirring for 5 Min;

(e) the electromagnet is inserted into the opening of the rough blank, and the iron core of the electromagnet is abutted against the inner wall of the rough blank to magnetize the rough blank of the handicraft;

(f) adding the mixture obtained in the step (d) into a spraying device and uniformly spraying the mixture on the outer surface of the rough blank;

(g) and (3) locally heating the sprayed layer by using a heating device to abut against the sprayed layer so as to condense the local brass powder and iron powder, and then repeatedly carrying out the heating step on the replaced part so as to condense the sprayed layer on the outer surface of the rough blank.

Preferably, the particle size of the iron powder added in the step (a) is 300-500 μm and the added iron powder is not less than 20% of the total mass fraction.

Preferably, the conductive thermosetting resin is a polyamide resin mixed with 5% of nickel-coated graphite powder and 1% of conductive carbon black.

Preferably, the thickness of the sprayed layer is not less than 2 mm.

Preferably, the heating device specifically adopts an electric soldering iron, the mixture can be sprayed to carry out secondary spraying on the depression of the condensation part, and the electric soldering iron is used for abutting against the secondary spraying part to enable the condensation part to be condensed so as to realize repair.

In addition, the invention also claims a brass sand handicraft which is made by adopting the manufacturing method.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

according to the brass sand artwork and the manufacturing method of the brass sand artwork, provided by the invention, the rough blank is prepared and magnetized to enable the rough blank to adsorb the spraying layer, so that the spraying layer can clearly feed back the shape and the lines on the rough blank, and the spraying layer is adsorbed on the rough blank by virtue of magnetic force, so that the problems of bubbles, sand holes or deformation can not occur, the polishing and repairing of the artwork in the later period can be effectively reduced, the spraying layer is supported by the rough blank, the production cost can be obviously reduced while the deformation of the spraying layer caused by external force is avoided, the practical significance and the popularization value are realized, and good economic benefits can be expected to be generated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows an artwork manufactured by the manufacturing method disclosed by the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.

Examples

A brass sand handicraft is prepared by the following steps:

(a) mixing 20% of conductive thermosetting resin with 20% of iron powder with the total mass fraction particle size of 300-500 mu m, fully stirring, injecting and molding to enable the mixture to be crosslinked and cured to form a handicraft coarse blank with an opening inside, wherein the conductive thermosetting resin adopts polyamide resin mixed with 5% of nickel-coated graphite powder and 1% of conductive carbon black in specific implementation;

(b) after being blended, the gypsum powder is uniformly coated on the surface of the rough blank, and the gypsum layer is cured and has the thickness of 1 mm;

(c) crushing the brass sand and the iron powder to a nano size according to a mass ratio of 8:1, controlling the temperature of the obtained brass powder and the iron powder to be 50-60 ℃, and stirring for 10Min in a stirring kettle;

(d) adding 1% of brass powder and polyamide resin with the total mass fraction of iron powder into the stirring kettle in the step (c) and stirring for 5 Min;

(e) the electromagnet is inserted into the opening of the rough blank, and the iron core of the electromagnet is abutted against the inner wall of the rough blank to magnetize the rough blank of the handicraft;

(f) adding the mixture obtained in the step (d) into a spray gun, and uniformly spraying the mixture on the outer surface of the coarse blank to form a spraying layer with the thickness of 2 mm;

(g) and abutting the sprayed layer by using an electric soldering iron to locally heat the sprayed layer so as to condense local brass powder and iron powder, then repeatedly carrying out the heating step on the replaced part so as to condense the sprayed layer on the outer surface of the rough blank, spraying the mixture to secondarily spray the depression of the condensed part, and abutting the secondary sprayed part by using the electric soldering iron so as to condense the mixture to realize repair.

(h) And taking out the electromagnet in the air of the rough blank and polishing the surface of the sprayed layer.

The temperature-controlled stirring promotes the combination of the copper yellow powder and the iron powder, when the copper yellow powder and the iron powder are sprayed on the surface of the coarse blank magnetized by the electromagnet, the iron powder drives the copper yellow powder to be adsorbed on the surface of the coarse blank, a compact and fine spraying layer can be formed, and the spraying layer is adsorbed on the coarse blank by means of magnetic force, so that the shape and lines of the coarse blank can be clearly reflected by the spraying layer, and air bubbles, sand holes or deformation can not occur; the prepared artware is internally provided with a rough blank for preparing the spraying layer, so that the artware is not easy to deform after being subjected to external force, and the manufacturing cost is far lower than that of a solid artware with the same volume.

TABLE 1 physical Properties of sprayed layer

Appearance of the product	Hardness of	Degree of peeling
			The sprayed layer is bright yellow and has no bubbles, pinholes or deformation on the surface	85HV	Is not easy to peel off

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.