CN1034294C - Technology for producing high-strength bimetal nut - Google Patents
Technology for producing high-strength bimetal nut Download PDFInfo
- Publication number
- CN1034294C CN1034294C CN 93104368 CN93104368A CN1034294C CN 1034294 C CN1034294 C CN 1034294C CN 93104368 CN93104368 CN 93104368 CN 93104368 A CN93104368 A CN 93104368A CN 1034294 C CN1034294 C CN 1034294C
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- nut
- ferrous metal
- present
- producing
- technology
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Abstract
The present invention discloses technology for producing a high-strength bimetal nut, which is particularly suitable for producing various valve nuts under the normal temperature, the high temperature and the high pressure of oil producing well heads of oilfields and petrochemical devices. The present invention uses carbon-steel material for producing a nut main body, a non-ferrous metal layer is extruded or centrifugally cast into a blind hole of the nut main body, and then the operation of processing formation is carried out. The present invention has the advantages of simple technology, easy manufacture, a large amount of non-ferrous metal material saving, and nut strength increase.
Description
The present invention relates to a kind of high-strength bimetal nut manufacturing process, be specially adapted to the nut manufacturing of the various valves of normal temperature, high temperature, high pressure on oil well mouth, the petrochemical plant.
Existing valve nut adopt non-ferrous metal as: ZQA19-4, ZQSn6-6-3 Casting aluminium bronze, aluminium base rare earth material such as close and adopt technological method whole cast blanks such as sand mo(u)ld, metal pattern, common centrifugal pressure casting, machining forms, this kind nut non-ferrous metal consumption is many, and a certain proportion of casting defect is arranged.
The manufacturing process that the purpose of this invention is to provide a kind of high-strength bimetal nut.
Technological scheme of the present invention is that non-ferrous metal is adopted at the screw thread position of nut, forms bimetal nut with the body employing carbon steel material of nut, and its manufacture method is:
In the region between the heart and the diaphragm hole in carbon steel nut body hair is bad, the non-ferrous metal of certain volume is heated to 800～950 ℃, utilizes press machine that non-ferrous metal is expressed in the region between the heart and the diaphragm hole of carbon steel nut body, make the nut blank, machinery adds shaping then;
Technology of the present invention is simple, easily manufactured, can save a large amount of non-ferrous metals, has improved the intensity of nut, and and has overcome casting defect of the prior art.
The present invention is provided by following examples.
Fig. 1 is the nut blahk structure schematic representation of extruding non-ferrous metal layer of the present invention and centrifugal pressure casting non-ferrous metal layer.
Fig. 2 is the nut blahk structure schematic representation that the present invention pushes nut body.
Describe method of manufacturing technology of the present invention in detail below in conjunction with accompanying drawing.
With reference to Fig. 1, earlier carbon steel is processed into nut body [1], in the region between the heart and the diaphragm hole in nut body [1], process 1～8 road annular groove, process 1～8 road axial groove, the non-ferrous metal material with certain volume is heated to 800～950 ℃ then, utilizes press machine non-ferrous metal to be expressed in the region between the heart and the diaphragm hole of nut body [1], form nut non-ferrous metal layer [2], machining is shaped then.
Claims (1)
1, a kind of bimetal nut manufacturing process of forming by nut body [1] and nut non-ferrous metal layer [2], it is characterized in that it earlier makes nut body [1] with carbon steel, then non-ferrous metal is heated in 800～950 ℃ of the region between the heart and the diaphragm holes that are expressed to nut body [1], makes the nut blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93104368 CN1034294C (en) | 1993-04-30 | 1993-04-30 | Technology for producing high-strength bimetal nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93104368 CN1034294C (en) | 1993-04-30 | 1993-04-30 | Technology for producing high-strength bimetal nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1094487A CN1094487A (en) | 1994-11-02 |
| CN1034294C true CN1034294C (en) | 1997-03-19 |
Family
ID=4985162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93104368 Expired - Fee Related CN1034294C (en) | 1993-04-30 | 1993-04-30 | Technology for producing high-strength bimetal nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034294C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941064A (en) * | 2010-08-25 | 2011-01-12 | 刘明强 | Method for manufacturing metal-base compound bimetallic article by centrifugation |
-
1993
- 1993-04-30 CN CN 93104368 patent/CN1034294C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941064A (en) * | 2010-08-25 | 2011-01-12 | 刘明强 | Method for manufacturing metal-base compound bimetallic article by centrifugation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1094487A (en) | 1994-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |