CN112222785A - Copper nut machining process - Google Patents
Copper nut machining process Download PDFInfo
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- CN112222785A CN112222785A CN202011122347.5A CN202011122347A CN112222785A CN 112222785 A CN112222785 A CN 112222785A CN 202011122347 A CN202011122347 A CN 202011122347A CN 112222785 A CN112222785 A CN 112222785A
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- copper nut
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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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Abstract
The invention discloses a copper nut processing technology, which comprises the steps of selecting materials, selecting copper raw materials, calcining the copper, adding carbon powder, iron, silicon carbide, nickel and cobalt, calcining at the high temperature of 950 ℃ through 800-. The invention provides a copper nut processing technology, wherein carbon powder, iron, silicon carbide, nickel and cobalt are added simultaneously during calcination, and the calcination is carried out at the high temperature of 800-. Meanwhile, the use is more stable, and the oil liquid is used for cooling and quenching for multiple times, so that the mechanical property is improved.
Description
Technical Field
The invention relates to the field of copper nut processing, in particular to a copper nut processing technology.
Background
The copper nut is defined as a nut made of copper (generally, lead brass, such as H59, H62), and the copper nut which we usually contact is mainly a hexagon nut or other copper nuts matched with the bolt. The copper nut has the advantages of difficult rusting, corrosion resistance, easy heat conduction, strong electric conductivity and the like, and is generally used in the use environments of rust prevention, high temperature, electric conduction, heat conduction and the like, such as taps, valves, electric switches and the like. The other main purpose is injection molding, and the plastic part is embedded into the plastic part after being heated or is directly subjected to mold injection molding.
The brass has better thermal conductivity, if the brass is embedded after the copper nut is heated, on one hand, the copper nut can be heated quickly to accelerate the working efficiency, on the other hand, the heated copper nut can conduct heat to the plastic part quickly, thereby softening the periphery of the plastic hole, facilitating the pressing into the hole, quickly raising the temperature of the copper nut after the copper nut is hot-melted into a plastic piece, after injection molding, the plastic body is rapidly cooled, crystallized and hardened, the main operation mode of the embedded knurled copper nut is injection molding, the embedded knurled copper nut is embedded into a plastic part after being heated or is directly injected by a mold, if the mould is adopted for injection molding, the melting point of PA/NYLOY/PET is above 200 ℃, the temperature of the embedded nut is quickly increased after the embedded nut is hot-melted into a plastic part, after the injection molding, the plastic body is quickly cooled, crystallized and hardened, if the insert nut is still at a high temperature, it may fall to the point where the copper nut contacts the plastic part and begin to come loose or crack. Copper nuts are used in the injection molding of the insert nuts instead of carbon steel nuts.
When the copper nut is machined, the existing machining process is complex, efficient machining cannot be conducted, and the quality of the machined copper nut is poor, so that the copper nut machining process is provided.
Disclosure of Invention
The invention aims to provide a copper nut processing technology to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a copper nut machining process comprises the following steps of S1: selecting a copper raw material, calcining the copper, adding carbon powder, iron, silicon carbide, nickel and cobalt, and calcining at the high temperature of 950 ℃ at 800-;
s2: calcining, molding, adding the molded copper nut into a mold for molding, quenching after molding, adding the molded copper nut into oil liquid during quenching, cooling for 30-60 minutes, taking out, pickling, carrying out air drying after pickling, carrying out air drying at room temperature during air drying, and keeping the room temperature at 15-25 ℃;
s3: processing an inner hole in the formed ingredients in the die, and processing the formed raw materials to 80-100 ℃ for processing when processing the inner hole;
s4: after the inner hole is machined, machining the outer diameter and the inner diameter of the copper nut by using a lathe, and simultaneously machining a thread;
s5: and (5) detecting the quality of the product after processing, and packaging after the product is detected to be qualified.
Preferably, the copper nut after the die forming is cleaned of impurities, the unformed copper nut is pickled and then air-dried, and during pickling, the copper nut is placed in an acid solution for 20-30 minutes and then taken out and air-dried for 1-2 hours.
Preferably, the burrs of the copper nut are removed, the copper nut is heated to 500 ℃ at 300-.
Preferably, the oil is mineral oil.
Preferably, the heated copper nut is immediately added into the oil liquid for cooling after the heated copper nut is kept at the heating temperature for 30-50 minutes, and the cooling time is 30-60 minutes.
Preferably, the cooling is performed at room temperature, which is in the range of 15-25 ℃.
Preferably, the outer diameter is machined by positioning with a rotary machine tool and performing rotary machining.
Preferably, the calcination is carried out for a period of 2 to 3 hours.
The invention has the technical effects and advantages that: during calcination, carbon powder, iron, silicon carbide, nickel and cobalt are added simultaneously, and calcination is performed at the high temperature of 800-950 ℃, so that the copper nut is higher in hardness. Non-deformable, convenient processing, also more stable when using simultaneously, add man-hour, utilize fluid to carry out the cooling and quenching many times, improve mechanical properties, convenient processing.
Detailed Description
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.
The invention provides a copper nut processing technology which comprises the following steps: selecting materials, selecting a copper raw material, calcining copper, adding carbon powder, iron, silicon carbide, nickel and cobalt, calcining at the high temperature of 950 ℃ of 800-.
Cleaning sundries of the copper nut formed by the mold, pickling the unformed copper nut, then air-drying, placing the copper nut in an acid solution during pickling for 20-30 minutes, taking out the copper nut, air-drying for 1-2 hours, removing burrs of the copper nut, heating the copper nut to 300-.
The oil liquid is mineral oil, the heated copper nut is immediately added into the oil liquid for cooling after keeping the heating temperature for 30-50 minutes, the cooling time is 30-60 minutes, the copper nut is cooled at room temperature in the range of 15-25 ℃, a rotary machine tool is used for positioning and rotating processing when the copper nut is subjected to outer diameter processing, and the calcining time is kept for 2-3 hours when the copper nut is subjected to calcining.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description.
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.
Claims (8)
1. The copper nut processing technology is characterized by comprising the following steps:
s1: selecting a copper raw material, calcining the copper, adding carbon powder, iron, silicon carbide, nickel and cobalt, and calcining at the high temperature of 950 ℃ at 800-;
s2: calcining, molding, adding the molded copper nut into a mold for molding, quenching after molding, adding the molded copper nut into oil liquid during quenching, cooling for 30-60 minutes, taking out, pickling, carrying out air drying after pickling, carrying out air drying at room temperature during air drying, and keeping the room temperature at 15-25 ℃;
s3: processing an inner hole in the formed ingredients in the die, and processing the formed raw materials to 80-100 ℃ for processing when processing the inner hole;
s4: after the inner hole is machined, machining the outer diameter and the inner diameter of the copper nut by using a lathe, and simultaneously machining a thread;
s5: and (5) detecting the quality of the product after processing, and packaging after the product is detected to be qualified.
2. The copper nut machining process according to claim 1, characterized in that: cleaning sundries of the copper nut formed by the mold, pickling the unformed copper nut, and then air-drying, wherein during pickling, the copper nut is placed in an acid solution for 20-30 minutes, and then is taken out and air-dried for 1-2 hours.
3. The copper nut machining process according to claim 1, characterized in that: and removing burrs of the copper nut, heating the copper nut after deburring to the temperature of 300-500 ℃, cooling, placing the copper nut in oil liquid during cooling, heating the copper nut again to the temperature of 350-600 ℃, adding the copper nut into the oil liquid again for cooling, and pickling after cooling.
4. The copper nut machining process according to claim 3, characterized in that: the oil liquid is mineral oil.
5. The copper nut machining process according to claim 3, characterized in that: and (3) keeping the heated copper nut at the heating temperature for 30-50 minutes, and immediately adding the copper nut into the oil liquid for cooling for 30-60 minutes.
6. The copper nut machining process according to claim 1, characterized in that: and cooling at room temperature, wherein the room temperature is 15-25 ℃.
7. The copper nut machining process according to claim 1, characterized in that: when the outer diameter is machined, the machining is performed by positioning with a rotary machine tool.
8. The copper nut machining process according to claim 1, characterized in that: when the calcination is carried out, the calcination time is kept for 2 to 3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122347.5A CN112222785B (en) | 2020-10-20 | 2020-10-20 | Copper nut machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122347.5A CN112222785B (en) | 2020-10-20 | 2020-10-20 | Copper nut machining process |
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| Publication Number | Publication Date |
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| CN112222785A true CN112222785A (en) | 2021-01-15 |
| CN112222785B CN112222785B (en) | 2022-12-20 |
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| CN202011122347.5A Active CN112222785B (en) | 2020-10-20 | 2020-10-20 | Copper nut machining process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310197A (en) * | 2022-02-14 | 2022-04-12 | 襄阳协德精密机械有限公司 | Copper nut machining process |
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| GB1374915A (en) * | 1971-03-08 | 1974-11-20 | Hattan M Green W P | Formation of nuts |
| JPH10280082A (en) * | 1997-04-11 | 1998-10-20 | Sumitomo Electric Ind Ltd | Composite alloy member, and its production |
| JP2000317738A (en) * | 1999-05-10 | 2000-11-21 | Hamanaka Nut Kk | Manufacture of stainless steel bolt |
| CN1456398A (en) * | 2002-05-09 | 2003-11-19 | 李康宁 | Red copper threading pipe connector producing method |
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2020
- 2020-10-20 CN CN202011122347.5A patent/CN112222785B/en active Active
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| JPH10280082A (en) * | 1997-04-11 | 1998-10-20 | Sumitomo Electric Ind Ltd | Composite alloy member, and its production |
| JP2000317738A (en) * | 1999-05-10 | 2000-11-21 | Hamanaka Nut Kk | Manufacture of stainless steel bolt |
| CN1456398A (en) * | 2002-05-09 | 2003-11-19 | 李康宁 | Red copper threading pipe connector producing method |
| CN101850495A (en) * | 2010-05-25 | 2010-10-06 | 烟台开发区蓝鲸金属修复有限公司 | Processing method of composite copper nuts |
| CN102128207A (en) * | 2010-12-31 | 2011-07-20 | 山西东睦华晟粉末冶金有限公司 | Combination bearing for air condition compressor and manufacturing method thereof |
| CN103602849A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Copper-based alloy sliding-bearing material and preparation method thereof |
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| CN110423916A (en) * | 2019-08-23 | 2019-11-08 | 厦门理工学院 | Aerosil loads Cu-base composites and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310197A (en) * | 2022-02-14 | 2022-04-12 | 襄阳协德精密机械有限公司 | Copper nut machining process |
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| CN112222785B (en) | 2022-12-20 |
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