CN101850495B - Processing method of composite copper nuts - Google Patents
Processing method of composite copper nuts Download PDFInfo
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- CN101850495B CN101850495B CN2010101821144A CN201010182114A CN101850495B CN 101850495 B CN101850495 B CN 101850495B CN 2010101821144 A CN2010101821144 A CN 2010101821144A CN 201010182114 A CN201010182114 A CN 201010182114A CN 101850495 B CN101850495 B CN 101850495B
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- welding
- weld layer
- processing method
- nuts
- copper
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000010949 copper Substances 0.000 title claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 31
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 5
- 238000003723 Smelting Methods 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- Pressure Welding/Diffusion-Bonding (AREA)
- Forging (AREA)
Abstract
The invention relates to a processing method of composite copper nuts, which is mainly applied to screw-down nuts of rolling machines in steel mills. The method comprises the following steps of: firstly, molding a steel product into a screw-down nut body by using large smelting equipment; roughly processing an inner hole in the nut body; preheating the inner hole to 150 DEG C, and then, welding a first welding layer on the surface of the inner hole by using copper alloy welding wires, wherein the metallurgical structure of the welding layer is formed by metallurgical bonding of steel and copper alloy welding wires; hammering the surface of the first welding layer after welding, and then, uniformly welding a second welding layer on the first welding layer by using the copper alloy welding wires to enable the first welding layer and the second welding layer to be fused into a whole; hammering the surface of the second welding layer after welding, and repeating the steps until the structural size required for the inner hole of the screw-down nut is achieved, thereby forming a composite copper nut billet of which the inside is made of copper and the outside is made of steel; then, machining the billet, turning an outer diameter, turning an inner diameter, and turning threads; and finally, processing an oil tank and oil holes. The screw-down nut processed by the processing method of the composite copper nuts of the invention has low cost and high strength and meets the requirements of users for service performance.
Description
Technical field
The present invention relates to a kind of processing method of nut, refer to a kind of processing method of composite copper nuts especially.
Background technology
The screw box that uses on the heavy-duty machinery is the copper screw box at present, the shortcoming of copper screw box is that manufacturing cost height, intensity are low, existing copper screw box manufacture method is with large-scale smelting equipment copper material to be processed into the screw box body earlier, then in nut body, process inner via hole, car system internal thread in inner via hole then, last processing oil groove and oilhole.
Summary of the invention
The object of the present invention is to provide a kind of processing method of composite copper nuts, the composite copper nuts cost of its processing is low and intensity is high, satisfies the requirement of user to operating characteristic.
To achieve these goals, technical solution of the present invention is: a kind of processing method of composite copper nuts, it comprises the steps:
(1) with large-scale smelting equipment steel is molded nut body;
(2) roughing goes out endoporus in nut body;
(3) endoporus with nut body is preheating to 150 ℃, evenly welds first weld layer with copper alloy welding wire at the nut body bore area, and its structure is the metallurgical binding of steel and copper alloy welding wire, after first weld layer has welded, and the hammering first weld layer surface;
(4) on the first weld layer inner surface, evenly weld second weld layer with copper alloy welding wire, make the fusion of first weld layer and second weld layer be one, after having welded, the hammering second weld layer inner surface;
(5) repeat above-mentioned steps (4),, form the base substrate of composite copper nuts until the physical dimension that reaches the requirement of screw box endoporus;
(6) machined: car external diameter → car internal diameter → cutting thread;
(7) last processing oil groove and oilhole.
The processing method of composite copper nuts of the present invention, after wherein each weld layer has welded, its weld layer surface of hammering.
The processing method of composite copper nuts of the present invention, the condition of work of wherein said step (2), (3), (6) and (7) is the room temperature normal pressure.
After adopting such scheme, the processing method of composite copper nuts of the present invention is by soldering copper alloy in steel screw box body endoporus, with copper take place of steel, reduced the manufacturing cost of screw box, simultaneously because the complex attribute of steel and copper alloy, the outer steel material has high strength and high rigidity, and the internal copper screw thread has wear-resisting and advantage self-lubricating.
The specific embodiment
The processing method of composite copper nuts of the present invention comprises the steps:
(1) selection quality carbon steel molds the screw box body with large-scale smelting equipment with it;
(2) under the room temperature normal pressure, according to the requirement of strength of made nut, determine the thickness of complex copper alloy, by the endoporus of this reservation thickness processing screw box body;
(3) endoporus with the screw box body is preheating to 150 ℃, on bore area, weld a fritter with the carbon-dioxide arc welding welding machine that copper alloy welding wire is housed earlier before the welding, then this weld section carrying out metallographic is detected, detect the metallurgy tissue of copper alloy and carbon steel binder course, when copper alloy and carbon steel binder course are metallurgical binding, meet welding requirements; Weld by test standard with copper alloy welding wire, evenly weld first weld layer at interior internal surface of hole, after first weld layer had welded, the hammering first weld layer surface was to eliminate welding stress;
(4) on the first weld layer surface, evenly weld second weld layer with copper alloy welding wire, make the fusion of first weld layer and second weld layer be one, because first weld layer and second weld layer are Cu alloy material, therefore its welding does not need to carry out slice test, can directly weld, welded the second weld layer surface after the hammering welding;
(5) repeat above-mentioned steps (4),, make the base substrate of a composite copper nuts until the physical dimension that reaches the requirement of screw box endoporus;
(6) under the room temperature normal pressure, the composite copper nuts base substrate is carried out machined: car external diameter → planar end surface → car endoporus → cutting thread;
(7) process the oil groove and the oilhole of nut at last.
The processing method of composite copper nuts of the present invention has reduced the manufacturing cost of screw box with copper take place of steel, and owing to the complex attribute of steel and copper alloy, outside steel have high rigidity, high strength simultaneously, and inner copper screw thread has wear-resisting and the self-lubricating advantage.
The above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (3)
1. the processing method of a composite copper nuts is characterized in that: comprise the steps:
(1) with large-scale smelting equipment steel is molded the screw box body;
(2) roughing goes out endoporus in the screw box body;
(3) endoporus with the screw box body is preheating to 150 ℃, evenly weld first weld layer with copper alloy welding wire at screw box body bore area, its structure is the metallurgical binding of steel and copper alloy welding wire, after first weld layer has welded, and the hammering first weld layer surface;
(4) on the first weld layer surface, evenly weld second weld layer with copper alloy welding wire, make the fusion of first weld layer and second weld layer be one, after having welded, the hammering second weld layer surface;
(5) repeat above-mentioned steps (4),, form the base substrate of composite copper nuts until the physical dimension that reaches the requirement of screw box endoporus;
(6) machined: car external diameter → car internal diameter → cutting thread;
(7) last processing oil groove and oilhole.
2. the processing method of composite copper nuts as claimed in claim 1 is characterized in that: after each weld layer has welded, and its weld layer surface of hammering.
3. the processing method of composite copper nuts as claimed in claim 2, it is characterized in that: the condition of work of described step (2), (3), (6) and (7) is the room temperature normal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101821144A CN101850495B (en) | 2010-05-25 | 2010-05-25 | Processing method of composite copper nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101821144A CN101850495B (en) | 2010-05-25 | 2010-05-25 | Processing method of composite copper nuts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101850495A CN101850495A (en) | 2010-10-06 |
| CN101850495B true CN101850495B (en) | 2011-08-17 |
Family
ID=42802262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101821144A Active CN101850495B (en) | 2010-05-25 | 2010-05-25 | Processing method of composite copper nuts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101850495B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672417A (en) * | 2011-03-14 | 2012-09-19 | 大连瑞谷科技有限公司 | Improvement on end cover nut stamping technique of mechanical steering gear |
| CN112222785B (en) * | 2020-10-20 | 2022-12-20 | 苏州市正如懿电子科技有限公司 | Copper nut machining process |
| CN115041775B (en) * | 2022-07-14 | 2023-07-04 | 一重集团(黑龙江)重工有限公司 | Copper overlaying method for screw-down screw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2210472A1 (en) * | 1971-03-08 | 1972-09-28 | Goering A | Safety nut |
| US4956888A (en) * | 1985-05-28 | 1990-09-18 | Green William P | Formation of fasteners and connections with variable pitch threads |
| CN2177857Y (en) * | 1993-11-20 | 1994-09-21 | 刘新沂 | Steel base wear-proof bimetallic valve stem nut |
| CN201183323Y (en) * | 2008-04-18 | 2009-01-21 | 宫校东 | Novel screw press main helix pair nut |
| CN201288747Y (en) * | 2008-10-20 | 2009-08-12 | 杨明光 | Steel-based composite copper duplex metal valve stem nut |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006030894A1 (en) * | 2006-07-01 | 2008-01-03 | Beltec Industrietechnik Gmbh | Force transmission unit, e.g. for anchors in mining/tunneling, has a body of a compound fiber material and a reinforcement with a thread |
-
2010
- 2010-05-25 CN CN2010101821144A patent/CN101850495B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2210472A1 (en) * | 1971-03-08 | 1972-09-28 | Goering A | Safety nut |
| US4956888A (en) * | 1985-05-28 | 1990-09-18 | Green William P | Formation of fasteners and connections with variable pitch threads |
| CN2177857Y (en) * | 1993-11-20 | 1994-09-21 | 刘新沂 | Steel base wear-proof bimetallic valve stem nut |
| CN201183323Y (en) * | 2008-04-18 | 2009-01-21 | 宫校东 | Novel screw press main helix pair nut |
| CN201288747Y (en) * | 2008-10-20 | 2009-08-12 | 杨明光 | Steel-based composite copper duplex metal valve stem nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101850495A (en) | 2010-10-06 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Processing method of composite copper nuts Effective date of registration: 20150305 Granted publication date: 20110817 Pledgee: Yantai Yinqiao credit Company limited by guarantee Pledgor: YAN TAI DEVOLOPMENT ZONE BLUE WHALE MAINTENANCE WELDING Co.,Ltd. Registration number: 2015370000008 |
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Date of cancellation: 20161202 Granted publication date: 20110817 Pledgee: Yantai Yinqiao financing Company limited by guarantee Pledgor: YAN TAI DEVOLOPMENT ZONE BLUE WHALE MAINTENANCE WELDING Co.,Ltd. Registration number: 2015370000008 |
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Change date: 20161130 Registration number: 2015370000008 Pledgee after: Yantai Yinqiao financing Company limited by guarantee Pledgee before: Yantai Yinqiao credit Company limited by guarantee |
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Denomination of invention: Processing method of composite copper nuts Effective date of registration: 20170117 Granted publication date: 20110817 Pledgee: Yantai Yinqiao financing Company limited by guarantee Pledgor: YAN TAI DEVOLOPMENT ZONE BLUE WHALE MAINTENANCE WELDING Co.,Ltd. Registration number: 2017370000006 |
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Date of cancellation: 20221122 Granted publication date: 20110817 Pledgee: Yantai Yinqiao financing Company limited by guarantee Pledgor: YAN TAI DEVOLOPMENT ZONE BLUE WHALE MAINTENANCE WELDING Co.,Ltd. Registration number: 2017370000006 |
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