CN111455212A - Copper-tin alloy tableware and method for manufacturing same - Google Patents
Copper-tin alloy tableware and method for manufacturing same Download PDFInfo
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- CN111455212A CN111455212A CN202010335225.8A CN202010335225A CN111455212A CN 111455212 A CN111455212 A CN 111455212A CN 202010335225 A CN202010335225 A CN 202010335225A CN 111455212 A CN111455212 A CN 111455212A
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- copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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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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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
Abstract
The invention discloses copper-tin alloy tableware, which is prepared from the following materials in parts by weight, wherein the copper with the purity of more than 99.99 percent is 83-86 percent, and the tin with the purity of more than 99.99 percent is 14-17 percent. A method for manufacturing copper-tin alloy tableware comprises the following steps: 1) putting copper and tin into a crucible according to the weight ratio of 83-86:14-17, and heating to 1150-1200 ℃ to obtain alloy molten liquid; 2) pouring the molten liquid not lower than 1030 ℃ in the crucible into a tableware forming die, and taking the semi-finished product out of the tableware forming die after the semi-finished product in the tableware forming die reaches 110 ℃ and 180 ℃; 3) under the condition that the semi-finished product is heated at the temperature of 270-320 ℃, the temperature is kept for 1.5-2.5 hours, and the semi-finished product is cooled to room temperature; 4) and grinding and polishing the cooled semi-finished product to form the finished copper-tin alloy tableware. The invention uses new copper-tin alloy material, and uses the related process to manufacture the copper-tin alloy tableware, thereby not only improving the use stability of the copper-tin alloy tableware, but also utilizing the sterilization characteristic of copper.
Description
Technical Field
The invention relates to copper-tin alloy tableware.
Background
Tableware refers to non-edible implements that directly contact food when eating, utensils and appliances that assist in the distribution or intake of food. The traditional tableware mainly comprises ceramic tableware, enamel tableware and metal tableware (comprising stainless steel, aluminum, copper and the like), and can be divided into Chinese tableware and western-style food according to applicable regions, wherein the Chinese tableware mainly comprises bowls, dishes, chopsticks, plates and the like, and the western-style food mainly comprises plates, knives, forks and the like. The population of China is as high as 15 hundred million, and the population capable of using or normally using tableware is about 10 hundred million (excluding infants and children), that is, at least more than 10 hundred million sets of tableware are needed, so the using amount of the tableware is huge in China.
In the traditional Chinese tableware, ceramic tableware is recognized as non-toxic tableware in the past, and the reports or former cases of using poisoning do not appear on the ceramic tableware. However, some porcelain dishes contain lead in the beautiful coat (glaze), which may cause the dishes to contain more lead if the temperature is not sufficient during firing the porcelain or the glaze formulation does not meet the standards, and lead may overflow the surface of the glaze and mix into the food when the food comes into contact with the ceramic dishes. In addition, ceramic tableware is fragile, the damage rate is extremely high, broken stubbles easily cause injury risks to human bodies, broken ceramics can also form garbage which is difficult to treat, and the recycling cost and other utilization cost are high. The stainless steel tableware is attractive in appearance, light, convenient and easy to use, corrosion-resistant and rustless, and is favored by people, the stainless steel is made of iron-chromium alloy doped with metals such as nickel, molybdenum and the like, so that salt, soy sauce, vinegar and the like do not need to be contained for a long time during use, and because electrolytes in the food react with the stainless steel after being contacted for a long time, harmful substances are dissolved out, and the use of the stainless steel tableware also has certain health threat. The disposable tableware is still popular in the market at present, most of the disposable tableware is plastic tableware, the plastic tableware is basically made of polyethylene and polypropylene, the polyethylene and the polypropylene are nontoxic plastics accepted by most national health departments, sugar boxes, tea trays, rice bowls, cold water jugs, milk bottles and the like in the market are all plastics, but polyvinyl chloride with a structure similar to that of polyethylene molecules is a dangerous molecule, people find that a rare hepatic hemangioma is almost related to people who often contact polyvinyl chloride, so that some bad manufacturers can produce the tableware made of polyvinyl chloride, so as to confuse the human body and greatly increase the harm of the tableware to the human body. In addition, the outer surface of the plastic tableware is sometimes coated with partial patterns, and the release amount of heavy metal elements such as lead, cadmium and the like in the color patterns of the partial plastic tableware exceeds the standard, so that the plastic tableware is also harmful to human bodies.
In summary, the conventional tableware has some problems and cannot realize the automatic sterilization function.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide copper-tin alloy tableware, which overcomes the defects of tableware in the prior art, is not easy to breed bacteria, has a sterilization function, and is convenient to use and long in service life.
In order to solve the technical problems, the invention provides copper-tin alloy tableware with the following structure, and the structure is characterized in that: the tableware is prepared from 83-86% of copper with purity of more than 99.99% and 14-17% of tin with purity of more than 99.99% by weight.
The weight percentage of the copper is 85 percent, and the weight percentage of the tin copper is 15 percent.
On the other hand, the modern scientific research shows that copper element has great benefits to human body, and copper ions are essential elements for organisms, whether animals or plants. Copper deficiency in humans causes anemia, hair abnormalities, bone and artery abnormalities, and even brain disorders. Copper is a trace mineral substance necessary for human body, can enter blood after being ingested for 15 minutes, and exists inside and outside red blood cells, so that the copper can help iron transfer protein and plays an important role in catalysis in the process of forming heme. And the copper element is not easy to be damaged in the food cooking process. Ancient China senior citizens mostly use bronze products, the bronze products are copper-tin alloys, and the bronze tableware produced cannot achieve ideal effects because the ancient China can not accurately quantify the content of copper and tin. The tableware made of the copper-tin alloy with the structure has the following advantages: 1. supplementing copper element which is insufficient in human body; 2. the copper element can enhance the transcription process of cancer cell DNA and help people resist tumor cancer; 3. the stability of the copper-tin alloy tableware is improved by proper proportion of the copper-tin alloy.
The invention also provides a manufacturing method of the copper-tin alloy tableware, which is characterized by comprising the following steps:
1) putting copper with the purity of more than 99.99 percent and tin with the purity of more than 99.99 percent into a crucible according to the weight ratio of 83-86:14-17, heating to 1150-1200 ℃ to melt the copper and the tin at high temperature to obtain alloy melt;
2) pouring the molten liquid not lower than 1030 ℃ in the crucible into a tableware forming die, and taking the semi-finished product out of the tableware forming die after the semi-finished product in the tableware forming die reaches 110 ℃ and 180 ℃;
3) under the condition that the semi-finished product is heated at the temperature of 270-320 ℃, the temperature is kept for 1.5-2.5 hours, and the semi-finished product is cooled to room temperature;
4) and grinding and polishing the cooled semi-finished product to form the finished copper-tin alloy tableware.
In the step 1), copper with a set mass is added into a crucible, when the copper is heated to a temperature of over 1000 ℃, tin with the weight ratio is added into the crucible, and the copper and the tin are uniformly melted by adding the tin while stirring.
And in the step 2), removing slag after taking the semi-finished product out of the tableware forming die.
And in the step 3), a plurality of semi-finished products are fixedly placed on a heating tray and are heated by a heating furnace.
In the step 4), firstly, the cooled semi-finished product is roughly ground by using a rough grinding roller, then the semi-finished product is machined, and finally, the semi-finished product is finely ground by using a fine grinding brush.
In conclusion, the invention uses the new material of the copper-tin alloy, and the copper-tin alloy tableware is manufactured by using the related process, thereby not only improving the use stability of the copper-tin alloy tableware, but also utilizing the sterilization characteristic of copper.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
FIG. 1 is a schematic flow chart of a manufacturing method of the present invention;
FIG. 2 is a report of the detection of copper used in the present invention;
fig. 3 is a product quality assurance certificate for tin used in 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.
Referring to fig. 2 and 3, the invention provides a copper-tin alloy tableware, which is prepared from the following materials in parts by weight, wherein 83-86% of copper with the purity of more than 99.99% and 14-17% of tin with the purity of more than 99.99%, the copper is an A-grade cathode copper product produced by Shandong Hengbang smelting Limited company, the tin is a tin product produced by Weitai tin industry Limited company in Maanshan, and the detection report and the product quality guarantee show that the purities of copper and tin meet the requirements and other impurities are avoided in the production process of the copper-tin alloy tableware.
The most preferred embodiment is 85% by weight copper and 15% by weight tin copper. The weight ratio has the advantages that the hardness and the melting quality of the copper-tin alloy reach the best effect, the segregation phenomenon of the copper-tin alloy in the forming process is avoided, and the performance of the copper-tin alloy tableware is effectively ensured.
Referring to fig. 1, the invention also provides a method for manufacturing the copper-tin alloy tableware, which is used for manufacturing the copper-tin alloy tableware with the structure, and comprises the following steps:
1) putting copper with the purity of more than 99.99 percent and tin with the purity of more than 99.99 percent into a crucible according to the weight ratio of 83-86:14-17, heating to 1150-1200 ℃ to melt the copper and the tin at high temperature to obtain alloy melt; in the step, firstly adding copper with set mass into a crucible, when the copper is heated to more than 1000 ℃, adding tin with the weight ratio into the crucible, and adding tin while stirring to enable the copper and the tin to be melted uniformly;
2) pouring the molten liquid not lower than 1030 ℃ in the crucible into a tableware forming die, and taking the semi-finished product out of the tableware forming die after the semi-finished product in the tableware forming die reaches 110 ℃ and 180 ℃; taking the semi-finished product out of the tableware forming die, and then carrying out deslagging treatment;
3) under the condition that the semi-finished product is heated at the temperature of 270-320 ℃, the temperature is kept for 1.5-2.5 hours, and the semi-finished product is cooled to room temperature; fixedly placing a plurality of semi-finished products on a heating tray and heating the semi-finished products through a heating furnace;
4) and grinding and polishing the cooled semi-finished product to form the finished copper-tin alloy tableware, wherein in the step, the cooled semi-finished product is firstly roughly ground by using a roughing sand roller, then machined and finally finely ground by using a fine grinding brush.
The specific structures of the crucible, the tableware forming mold, the heating furnace and the polishing tool (including fine polishing and rough polishing) are all the prior art, and the structures thereof are clear to those skilled in the art and are not described in detail herein.
In the heating and heat preservation processes of the semi-finished product, the stress is removed under the condition that the copper-tin alloy keeps uniform grains, the annealing hardening phenomenon can be effectively avoided, the problem that machining cannot be carried out is avoided, and in the processes of the steps 1) and 2), the copper and the tin can be more uniformly melted by adopting the temperature, so that the segregation problem in the casting process is avoided. The process of pouring molten state in the step 2) can effectively avoid the copper-tin alloy from being adhered in the crucible, and effectively prolong the service life of the crucible. In the polishing process, the polishing powder can be recycled, and the material waste is prevented. The manufacturing method of the invention is described in detail below with reference to the manufacturing process of the bowl and chopsticks.
Example 1
1) Putting copper with the purity of more than 99.99 percent and tin with the purity of more than 99.99 percent into a crucible according to the weight ratio of 83:17, heating to 1150 ℃, and melting the copper and the tin at high temperature to obtain alloy molten liquid; in the step, firstly adding copper with set mass into a crucible, heating the copper to 1050 ℃, adding tin with the weight ratio into the crucible, and adding tin while stirring to enable the copper and the tin to be melted uniformly;
2) pouring the melt liquid in the crucible, which is not lower than 1030 ℃, into a bowl forming die, and taking out the semi-finished product from the bowl forming die after the semi-finished product in the bowl forming die is cooled to 180 ℃; taking the semi-finished product out of the bowl die forming die, and then carrying out deslagging treatment;
3) heating the semi-finished product at 290-320 ℃, preserving heat for 1.5-2 hours, and cooling the semi-finished product in a furnace to room temperature; fixedly placing a plurality of semi-finished products on a heating tray and heating the semi-finished products through a heating furnace;
4) and grinding and polishing the cooled semi-finished product to form a finished copper-tin alloy bowl, wherein in the step, the cooled semi-finished product is firstly roughly ground by using a rough grinding roller, then machined and finally finely ground by using a fine grinding brush.
After detection, the survival time of bacteria attachment is less than 4 hours after the copper-tin alloy bowl manufactured by the embodiment is used.
Example 2
1) Putting copper with the purity of more than 99.99 percent and tin with the purity of more than 99.99 percent into a crucible according to the weight ratio of 86:14, heating to 1200 ℃, and melting the copper and the tin at high temperature to obtain alloy molten liquid; in the step, firstly adding copper with set mass into a crucible, heating the copper to 1100 ℃, adding tin with the weight ratio into the crucible, and adding tin while stirring to enable the copper and the tin to be melted uniformly;
2) pouring the melt liquid in the crucible, which is not lower than 1030 ℃, into a chopstick forming die, and taking the semi-finished product out of the chopstick forming die after the semi-finished product in the chopstick forming die reaches 110-150 ℃; taking the semi-finished product out of the chopstick forming die, and then carrying out deslagging treatment;
3) under the condition of heating the semi-finished product at the temperature of 270-290 ℃, preserving heat for 2-2.5 hours and cooling the semi-finished product in a furnace to room temperature; fixedly placing a plurality of semi-finished products on a heating tray and heating the semi-finished products through a heating furnace;
4) and grinding and polishing the cooled semi-finished product to form the finished copper-tin alloy tableware, wherein in the step, the cooled semi-finished product is firstly roughly ground by using a roughing sand roller, then machined and finally finely ground by using a fine grinding brush.
Through detection, the copper-tin alloy chopsticks made in the above embodiments have the survival time of bacteria attachment less than 3.5 hours after use.
The present invention may also have other embodiments, and other technical solutions formed in the claims are not described in detail, and the present invention is not limited by the above embodiments, and equivalent changes and component replacements based on the above embodiments of the present invention are within the protection scope of the present invention.
Claims (7)
1. A copper-tin alloy tableware is characterized in that: the tableware is prepared from 83-86% of copper with purity of more than 99.99% and 14-17% of tin with purity of more than 99.99% by weight.
2. The copper-tin alloy tableware according to claim 1, wherein: the weight percentage of the copper is 85 percent, and the weight percentage of the tin copper is 15 percent.
3. The manufacturing method of the copper-tin alloy tableware is characterized by comprising the following steps:
1) putting copper with the purity of more than 99.99 percent and tin with the purity of more than 99.99 percent into a crucible according to the weight ratio of 83-86:14-17, heating to 1150-1200 ℃ to melt the copper and the tin at high temperature to obtain alloy melt;
2) pouring the molten liquid not lower than 1030 ℃ in the crucible into a tableware forming die, and taking the semi-finished product out of the tableware forming die after the semi-finished product in the tableware forming die reaches 110 ℃ and 180 ℃;
3) under the condition that the semi-finished product is heated at the temperature of 270-320 ℃, the temperature is kept for 1.5-2.5 hours, and the semi-finished product is cooled to room temperature;
4) and grinding and polishing the cooled semi-finished product to form the finished copper-tin alloy tableware.
4. The method of making copper-tin alloy tableware according to claim 3, wherein: in the step 1), copper with a set mass is added into a crucible, when the copper is heated to a temperature of over 1000 ℃, tin with the weight ratio is added into the crucible, and the copper and the tin are uniformly melted by adding the tin while stirring.
5. The method of making copper-tin alloy tableware according to claim 3, wherein: and in the step 2), removing slag after taking the semi-finished product out of the tableware forming die.
6. A method of making copper-tin alloy tableware according to claim 3 wherein: and in the step 3), a plurality of semi-finished products are fixedly placed on a heating tray and are heated by a heating furnace.
7. A method of making copper-tin alloy tableware according to claim 3 wherein: in the step 4), firstly, the cooled semi-finished product is roughly ground by using a rough grinding roller, then the semi-finished product is machined, and finally, the semi-finished product is finely ground by using a fine grinding brush.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010335225.8A CN111455212A (en) | 2020-04-24 | 2020-04-24 | Copper-tin alloy tableware and method for manufacturing same |
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| CN202010335225.8A CN111455212A (en) | 2020-04-24 | 2020-04-24 | Copper-tin alloy tableware and method for manufacturing same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206268A (en) * | 1977-10-22 | 1980-06-03 | Glyco-Metall-Werke Daelen & Loos Gmbh | Plain bearing laminate having slide-layer alloy based on copper-lead-tin |
| CN1924050A (en) * | 2006-08-21 | 2007-03-07 | 玉环华诺金属制品有限公司 | Leadless high-tin bronze dinnerware and producing method thereof |
| CN102304642A (en) * | 2011-08-26 | 2012-01-04 | 河南科技大学 | Cast wear-resistant tin bronze alloy and preparation method thereof |
| CN105382253A (en) * | 2015-12-10 | 2016-03-09 | 湖南省天心博力科技有限公司 | Method for producing premixed copper-tin 10 bronze |
-
2020
- 2020-04-24 CN CN202010335225.8A patent/CN111455212A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206268A (en) * | 1977-10-22 | 1980-06-03 | Glyco-Metall-Werke Daelen & Loos Gmbh | Plain bearing laminate having slide-layer alloy based on copper-lead-tin |
| CN1924050A (en) * | 2006-08-21 | 2007-03-07 | 玉环华诺金属制品有限公司 | Leadless high-tin bronze dinnerware and producing method thereof |
| CN102304642A (en) * | 2011-08-26 | 2012-01-04 | 河南科技大学 | Cast wear-resistant tin bronze alloy and preparation method thereof |
| CN105382253A (en) * | 2015-12-10 | 2016-03-09 | 湖南省天心博力科技有限公司 | Method for producing premixed copper-tin 10 bronze |
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Application publication date: 20200728 |
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