CN111266532A

CN111266532A - Method for making gold ware

Info

Publication number: CN111266532A
Application number: CN202010196913.0A
Authority: CN
Inventors: 胡浩军; 周应年
Original assignee: Laopu Gold Co Ltd
Current assignee: Laopu Gold Co Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-06-12

Abstract

The invention discloses a method for manufacturing a gold ware. The manufacturing method of the gold ware comprises the following steps of preparing gypsum slurry; injecting gypsum slurry into the steel cup and enabling the gypsum slurry to submerge the wax tree in the steel cup; and vibrating the steel cup while vacuumizing the steel cup. Because it has some air to detain to pour into the thick liquid in the steel handleless cup in, to steel handleless cup evacuation, the air of detaining can rise upwards with the form of bubbling, vibrate the steel handleless cup when the evacuation and then reduce the air in the thick liquid with the discharge of accelerating air, the surface of the gypsum mould that forms so can be more smooth, improves the preparation level of golden ware.

Description

Method for making gold ware

Technical Field

The invention relates to the technical field of gold ware processing, in particular to a manufacturing method of a gold ware.

Background

The gold and silver ornaments and the ornaments are popular among people due to the exquisite appearance and the value of the ornaments. The traditional gold ware processing technology comprises the following steps of (1) manufacturing a rubber mold, wherein the rubber mold is manufactured by turning over the mold according to the shape of a gold ware; (2) manufacturing a wax mould, injecting wax into the rubber mould, cooling and then opening the mould to obtain the wax mould; (3) making a wax tree, making branches of the tree by using wax, and arranging a wax pattern at the tail ends of the branches; (4) manufacturing a plaster mold, placing the wax tree in a steel cup, injecting gypsum slurry, airing and baking to obtain the plaster mold; (5) pouring, injecting molten metal liquid into the plaster mold, cooling and forming, and removing the plaster mold to take out the golden device sample blank.

The steps show that the manufacturing level of the plaster mold plays a decisive role in the yield of the gold ware, and the finishing work of the subsequent working procedure can be saved to a great extent.

Disclosure of Invention

The invention aims to provide a method for manufacturing a gold ware, which aims to improve the manufacturing level of the gold ware.

The invention provides a method for manufacturing a gold ware, which comprises the following steps:

preparing gypsum slurry;

injecting gypsum slurry into the steel cup and enabling the gypsum slurry to submerge the wax tree in the steel cup; and

and vibrating the steel cup while vacuumizing the steel cup.

In some embodiments, the underside of the steel cup is provided with a workbench, and the vibrating steel cup comprises a vibrating workbench to drive the steel cup to vibrate.

In some embodiments, the underside of the table is provided with a latch, and vibrating the table includes resonating the table with the gypsum slurry in the steel cup.

In some embodiments, the method further comprises drying the gypsum slurry to obtain a plaster mold and baking the plaster mold.

In some embodiments, baking the plaster mold includes baking the plaster mold with different temperatures respectively at a plurality of baking stages.

In some embodiments, the plurality of baking stages includes a first baking stage, a second baking stage, a third baking stage, and a fourth baking stage, baking is performed at a temperature of 200 ℃ to 250 ℃ in the first baking stage; baking at 350-400 ℃ in a second baking stage; baking at 500-550 deg.c in the third baking stage; and in the fourth baking stage, the baking is carried out at the temperature of 700-730 ℃.

In some embodiments, the baking time of the first baking stage, the second baking stage and the third baking stage is 120 minutes to 150 minutes, and the baking time of the fourth baking stage is 180 minutes to 210 minutes.

In some embodiments, the gypsum slurry is prepared using distilled water at 38 ℃ to 40 ℃.

In some embodiments, the ratio of distilled water to landplaster is 450 ml: 1 kg.

In some embodiments, the gypsum slurry is mixed by an electric rotating shaft, and the depth of the electric rotating shaft inserted into the gypsum slurry is adjusted in real time according to the real-time state of the gypsum slurry

The manufacturing method of the gold ware provided by the invention comprises the following steps of preparing gypsum slurry; injecting gypsum slurry into the steel cup and enabling the gypsum slurry to submerge the wax tree in the steel cup; and vibrating the steel cup while vacuumizing the steel cup. Because it has some air to detain to pour into the thick liquid in the steel handleless cup in, to steel handleless cup evacuation, the air of detaining can rise upwards with the form of bubbling, vibrate the steel handleless cup when the evacuation and then reduce the air in the thick liquid with the discharge of accelerating air, the surface of the gypsum mould that forms so can be more smooth, improves the preparation level of golden ware.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic diagram illustrating steps of a method for fabricating a gold device according to an embodiment of the present 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, the method for manufacturing a gold ware of the embodiment of the present invention includes the following steps:

preparing gypsum slurry;

and vibrating the steel cup while vacuumizing the steel cup.

Because it has some air to detain to pour into the thick liquid in the steel handleless cup in, to steel handleless cup evacuation, the air of detaining can rise upwards with the form of bubbling, vibrate the steel handleless cup when the evacuation and then reduce the air in the thick liquid with the discharge of accelerating air, the surface of the gypsum mould that forms so can be more smooth, improves the preparation level of golden ware.

Specifically, the downside of the steel handleless cup of this embodiment is provided with the operation platform, vibrates in order to drive the steel handleless cup vibration to the operation platform.

Preferably, the underside of the table of this embodiment is provided with a latch, and vibrating the table on the underside of the steel cup comprises resonating the table with the gypsum slurry in the steel cup. The resonance enables better outward evacuation of the air within the gypsum slurry.

In the method for manufacturing a gold utensil of the present embodiment, when gypsum slurry is prepared, the gypsum slurry is prepared using 38 to 40 ℃ distilled water, and the use of distilled water can promote the gypsum to ferment and coagulate better than the use of tap water and purified water.

Preferably, the mixture ratio of the distilled water to the gypsum powder is 450 ml: 1 kg.

According to the manufacturing method of the gold ware, when gypsum slurry is prepared, the electric rotating shaft is used for stirring, and the depth of the electric rotating shaft inserted into the gypsum slurry is adjusted in real time according to the real-time state of the gypsum slurry. Specifically, the operator manually adjusts the depth of the motorized spindle. Compared with the prior art in which mechanical blending is performed in the case, the embodiment adopts a mode of 'manual-automatic integration' in which the insertion depth of the electric rotating shaft is manually adjusted and the rotating speed of the electric rotating shaft is automatically adjusted, so that the viscosity of the gypsum slurry can be observed and sensed by an operator in real time through manual lifting, wherein the manual lifting refers to manually lifting the gypsum slurry and enabling the gypsum slurry to automatically fall to form a column shape so as to observe the viscosity. And (4) observing the viscosity while continuously stirring until the gypsum slurry is uniform and thoroughly stirred, and preparing the gypsum slurry to be smooth and have viscosity.

After the gypsum slurry is prepared, a gap angle is found along the edge of a steel cup for planting the wax tree, and the gypsum slurry is injected into the steel cup at a speed suitable for the urgency speed of the steel cup product so as not to wash away the wax piece until the wax tree is completely buried. The proper inclination angle can be found by adopting manual grouting, and the proper slow and fast gypsum slurry can be injected into the steel cup according to the type of the product.

The injected gypsum slurry contains air which is trapped, and at the moment, the vacuumizer is needed to vacuumize the gypsum slurry and vibrate the operation table to accelerate the rising and extraction of the air.

The method for manufacturing the golden device of the embodiment further comprises the steps of airing the gypsum slurry to obtain a gypsum mold and baking the gypsum mold. Preferably, the baking the plaster mold includes baking the plaster mold with different temperatures respectively at a plurality of baking stages.

Specifically, in this embodiment, the multiple baking stages include a first baking stage, a second baking stage, a third baking stage, and a fourth baking stage, and the baking is performed at a temperature of 200 to 250 ℃ in the first baking stage; baking at 350-400 ℃ in a second baking stage; baking at 500-550 deg.c in the third baking stage; and in the fourth baking stage, the baking is carried out at the temperature of 700-730 ℃.

In this embodiment, the baking time of the first baking stage, the second baking stage and the third baking stage is 120 minutes to 150 minutes, and the baking time of the fourth baking stage is 180 minutes to 210 minutes. The ranges of the baking time and the baking temperature are obtained through a plurality of tests of the inventor, and the gypsum mold products obtained within the ranges of the baking time and the baking temperature have high quality. In the specific manufacturing process, the baking time and the baking temperature are properly adjusted according to the specification of the batch of products, when the small-specification products account for much, the lower temperature in the temperature range can be selected as the common temperature, and the baking time can be selected for a long time to optimize the fineness of the gypsum mold. In addition, the production and processing work and rest can be properly adjusted within the range so as to improve the resource utilization rate and the production efficiency.

After the gypsum mold is obtained through the multi-stage baking, the molten gold is injected into the gypsum mold. When pouring and annotating gold water in the gypsum mould steel handleless cup, because operation under the high temperature environment and because the gypsum mould structure is complicated different, probably have the air detention in the gypsum mould, and the air of detention can lead to the golden appearance of production to have sand hole, pimple, fold scheduling problem. In order to effectively avoid the problem, the rope suction machine is started to play a role in accelerating the extraction of air in the gypsum mold while molten gold is injected.

After the molten gold is solidified, the plaster mold is stably placed at a fixed position to wait for natural cooling. Then, water is blasted into a steel cup of the plaster mold to remove the gypsum powder, and the gypsum powder remained on the metal piece is washed by a high-pressure water gun. The flushing water column of the high-pressure water gun does not directly spray the metal piece as much as possible, and the angle of 30-45 degrees is preferred.

In order to better remove and wash the gypsum powder, the gypsum mold steel cup is fried with acid for 3-4 times. Neutralizing and cleaning acid liquor and impurities with alkali liquor, and baking. And (5) blowing and cooling by using an air gun, cutting a water gap, and reserving necessary connecting positions and file preparation reservation.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims

1. The manufacturing method of the gold ware is characterized by comprising the following steps:

preparing gypsum slurry;

injecting the gypsum slurry into a steel cup and enabling the gypsum slurry to submerge a wax tree in the steel cup; and

and vibrating the steel cup while vacuumizing the steel cup.

2. The method of claim 1, wherein a table is provided on an underside of the steel cup, and vibrating the steel cup comprises vibrating the table to cause the steel cup to vibrate.

3. The method of claim 2, wherein a latch is provided on an underside of the table, and vibrating the table comprises resonating the table with the gypsum slurry in the steel cup.

4. The method of claim 1, further comprising drying the gypsum slurry to obtain a plaster mold and baking the plaster mold.

5. The method of claim 4, wherein baking the plaster mold comprises baking the plaster mold with different temperatures in a plurality of baking stages.

6. The method for manufacturing gold ware of claim 5, wherein the plurality of baking stages includes a first baking stage, a second baking stage, a third baking stage and a fourth baking stage, and baking is performed at a temperature of 200 ℃ to 250 ℃ in the first baking stage; baking at 350-400 ℃ in the second baking stage; baking at the temperature of 500-550 ℃ in the third baking stage; and in the fourth baking stage, the baking is carried out at the temperature of 700-730 ℃.

7. The method for manufacturing gold ware of claim 6, wherein the baking time of the first, second and third baking stages is 120-150 min, and the baking time of the fourth baking stage is 180-210 min.

8. The method of manufacturing a gold utensil according to claim 1, characterized in that the gypsum slurry is prepared with distilled water at 38 to 40 ℃.

9. The method for manufacturing gold ware of claim 8, wherein the ratio of distilled water to gypsum powder is 450 ml: 1 kg.

10. The method of claim 1, wherein the gypsum slurry is mixed by an electric rotating shaft, and the depth of the electric rotating shaft inserted into the gypsum slurry is adjusted in real time according to the real-time state of the gypsum slurry.